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1

Hydraulic properties of adsorbed water films in unsaturated porous media  

SciTech Connect

Adsorbed water films strongly influence residual water saturations and hydraulic conductivities in porous media at low saturations. Hydraulic properties of adsorbed water films in unsaturated porous media were investigated through combining Langmuir's film model with scaling analysis, without use of any adjustable parameters. Diffuse double layer influences are predicted to be important through the strong dependence of adsorbed water film thickness (f) on matric potential ({Psi}) and ion charge (z). Film thickness, film velocity, and unsaturated hydraulic conductivity are predicted to vary with z{sup -1}, z{sup -2}, and z{sup -3}, respectively. In monodisperse granular media, the characteristic grain size ({lambda}) controls film hydraulics through {lambda}{sup -1} scaling of (1) the perimeter length per unit cross sectional area over which films occur, (2) the critical matric potential ({Psi}{sub c}) below which films control flow, and (3) the magnitude of the unsaturated hydraulic conductivity when {Psi} < {Psi}{sub c}. While it is recognized that finer textured sediments have higher unsaturated hydraulic conductivities than coarser sands at intermediate {Psi}, the {lambda}{sup -1} scaling of hydraulic conductivity predicted here extends this understanding to very low saturations where all pores are drained. Extremely low unsaturated hydraulic conductivities are predicted under adsorbed film-controlled conditions (generally < 0.1 mm y{sup -1}). On flat surfaces, the film hydraulic diffusivity is shown to be constant (invariant with respect to {Psi}).

Tokunaga, Tetsu K.

2009-03-01T23:59:59.000Z

2

Heat and mass transfer in unsaturated porous media. Final report  

DOE Green Energy (OSTI)

A preliminary study of heat and water transport in unsaturated porous media is reported. The project provides background information regarding the feasibility of seasonal thermal energy storage in unconfined aquifers. A parametric analysis of the factors of importance, and an annotated bibliography of research findings pertinent to unconfined aquifer thermal energy storage (ATES) are presented. This analysis shows that heat and mass transfer of water vapor assume dominant importance in unsaturated porous media at elevated temperature. Although water vapor fluxes are seldom as large as saturated medium liquid water fluxes, they are important under unsaturated conditions. The major heat transport mechanism for unsaturated porous media at temperatures from 50 to 90/sup 0/C is latent heat flux. The mechanism is nonexistent under saturated conditions but may well control design of unconfined aquifer storage systems. The parametric analysis treats detailed physical phenomena which occur in the flow systems study and demonstrates the temperature and moisture dependence of the transport coefficients of importance. The question of design of an unconfined ATES site is also addressed by considering the effects of aquifer temperature, depth to water table, porous medium flow properties, and surface boundary conditions. Recommendations are made for continuation of this project in its second phase. Both scientific and engineering goals are considered and alternatives are presented.

Childs, S.W.; Malstaff, G.

1982-02-01T23:59:59.000Z

3

Solute spreading in nonstationary flows in bounded, heterogeneous unsaturated-saturated media  

E-Print Network (OSTI)

three cases: transport in a mean gravity-dominated flow, in an unsaturated flow with a water table in nonstationary flows in bounded, heterogeneous unsaturated-saturated media, Water Resour. Res., 39(3), 1049, doi et al., 1991; Jury and Scotter, 1994; Harter and Yeh, 1996a, 1996b]. [3] In most of these models

Lu, Zhiming

4

Hydraulic properties of adsorbed water films in unsaturated porous media  

E-Print Network (OSTI)

ionic strength and unit hydraulic head gradient. Figure 7.of the unsaturated hydraulic conductivity on matricYork. Durner, W. (1994), Hydraulic conductivity estimation

Tokunaga, Tetsu K.

2009-01-01T23:59:59.000Z

5

Upscaled flow and transport properties for heterogeneous unsaturated media  

E-Print Network (OSTI)

Federal Services, Richland, Washington, USA T.-C. Jim Yeh Department of Hydrology and Water Resources behavior at the field scale [Yeh, 1998]. However, to represent a heterogeneous medium by its homogeneous the effective properties for partially saturated media. Theoretical work [e.g., Mualem, 1984; Yeh et al., 1985a

Lu, Zhiming

6

Conservation Laws for Coupled Hydro-mechanical Processes in Unsaturated Porous Media: Theory and Implementation  

Science Conference Proceedings (OSTI)

We develop conservation laws for coupled hydro-mechanical processes in unsaturated porous media using three-phase continuum mixture theory. From the first law of thermodynamics, we identify energy-conjugate variables for constitutive modeling at macroscopic scale. Energy conjugate expressions identified relate a certain measure of effective stress to the deformation of the solid matrix, the degree of saturation to the matrix suction, the pressure in each constituent phase to the corresponding intrinsic volume change of this phase, and the seepage forces to the corresponding pressure gradients. We then develop strong and weak forms of boundary-value problems relevant for 3D finite element modeling of coupled hydro-mechanical processes in unsaturated porous media. The paper highlights a 3D numerical example illustrating the advances in the solution of large-scale coupled finite element systems, as well as the challenges in developing more predictive tools satisfying the basic conservation laws and the observed constitutive responses for unsaturated porous materials.

Borja, R I; White, J A

2010-02-19T23:59:59.000Z

7

Approaches to large scale unsaturated flow in heterogeneous, stratified, and fractured geologic media  

Science Conference Proceedings (OSTI)

This report develops a broad review and assessment of quantitative modeling approaches and data requirements for large-scale subsurface flow in radioactive waste geologic repository. The data review includes discussions of controlled field experiments, existing contamination sites, and site-specific hydrogeologic conditions at Yucca Mountain. Local-scale constitutive models for the unsaturated hydrodynamic properties of geologic media are analyzed, with particular emphasis on the effect of structural characteristics of the medium. The report further reviews and analyzes large-scale hydrogeologic spatial variability from aquifer data, unsaturated soil data, and fracture network data gathered from the literature. Finally, various modeling strategies toward large-scale flow simulations are assessed, including direct high-resolution simulation, and coarse-scale simulation based on auxiliary hydrodynamic models such as single equivalent continuum and dual-porosity continuum. The roles of anisotropy, fracturing, and broad-band spatial variability are emphasized. 252 refs.

Ababou, R.

1991-08-01T23:59:59.000Z

8

Investigation of Episodic Flow from Unsaturated Porous Media into a Macropore  

DOE Green Energy (OSTI)

Th e recent literature contains numerous observations of episodic or intermittent fl ow in unsaturated flow systems under both constant fl ux and ponded boundary conditions. Flow systems composed of a heterogeneous porous media, as well as discrete fracture networks, have been cited as examples of systems that can exhibit episodic fl ow. Episodic outfl ow events are significant because relatively large volumes of water can move rapidly through an unsaturated system, carrying water and contaminants to depth greatly ahead of a wetting front predicted by a one-dimensional, gravity-driven diff usive infiltration model. In this study, we model the behavior of water flow through a sand column underlain by an impermeable-walled macropore. Relative permeability and capillary pressure relationships were developed that capture the complex interrelationships between the macropore and the overlying porous media that control fl ow out of the system. The potential for episodic flow is assessed and compared to results of conventional modeling approaches and experimental data from the literature. Model results using coupled matrixmacropore relative permeability and capillary pressure relationships capture the behavior observed in laboratory experiments remarkably well, while simulations using conventional relative permeability and capillary pressure functions fail to capture some of the observed fl ow dynamics. Capturing the rapid downward movement of water suggests that the matrix-macropore capillary pressure and relative permeability functions developed have the potential to improve descriptions of fl ow and transport processes in heterogeneous, variably saturated media.

R. K. Podgorney; J. P. Fairley

2008-02-01T23:59:59.000Z

9

HYDROBIOGEOCHEM: A coupled model of HYDROlogic transport and mixed BIOGEOCHEMical kinetic/equilibrium reactions in saturated-unsaturated media  

Science Conference Proceedings (OSTI)

The computer program HYDROBIOGEOCHEM is a coupled model of HYDROlogic transport and BIOGEOCHEMical kinetic and/or equilibrium reactions in saturated/unsaturated media. HYDROBIOGEOCHEM iteratively solves the two-dimensional transport equations and the ordinary differential and algebraic equations of mixed biogeochemical reactions. The transport equations are solved for all aqueous chemical components and kinetically controlled aqueous species. HYDROBIOGEOCHEM is designed for generic application to reactive transport problems affected by both microbiological and geochemical reactions in subsurface media. Input to the program includes the geometry of the system, the spatial distribution of finite elements and nodes, the properties of the media, the potential chemical and microbial reactions, and the initial and boundary conditions. Output includes the spatial distribution of chemical and microbial concentrations as a function of time and space, and the chemical speciation at user-specified nodes.

Yeh, G.T.; Salvage, K.M. [Pennsylvania State Univ., University Park, PA (United States). Dept. of Civil and Environmental Engineering] [Pennsylvania State Univ., University Park, PA (United States). Dept. of Civil and Environmental Engineering; Gwo, J.P. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States); Zachara, J.M.; Szecsody, J.E. [Pacific Northwest National Lab., Richland, WA (United States)] [Pacific Northwest National Lab., Richland, WA (United States)

1998-07-01T23:59:59.000Z

10

Effects of dry fractures on matrix diffusion in unsaturated fractured rocks  

E-Print Network (OSTI)

Symposium on Multiphase Transport in Porous Media, ASMEmultiphase heat and mass flow in unsaturated fractured porous

Seol, Yongkoo; Liu, Hui Hai; Bodvarsson, Gudmundur S.

2002-01-01T23:59:59.000Z

11

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

E-Print Network (OSTI)

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

Pervaje, Amith (Amith Kumar)

2011-01-01T23:59:59.000Z

12

Experimental unsaturated soil mechanics  

E-Print Network (OSTI)

In this general report, experimental systems and procedures of investigating the hydro-mechanical behaviour of unsaturated soils are presented. The water retention properties of unsaturated soils are commented and linked to various physical parameters and properties of the soils. Techniques of controlling suction are described together with their adaptation in various laboratory testing devices. Some typical features of the mechanical behaviour of unsaturated soils are presented within an elasto-plastic framework. An attempt to describe the numerous and significant recent advances in the investigation of the behaviour of unsaturated soils, including the contributions to this Conference, is proposed.

Delage, Pierre

2008-01-01T23:59:59.000Z

13

A Physically Based Approach for Modeling Multiphase Fracture-Matrix Interaction in Fractured Porous Media  

E-Print Network (OSTI)

modeling fluid and heat flow in fractured porous media, Soc.flow through unsaturated fractured porous media, Proceedings of the Second International Symposium on Dynamics of Fluids

Wu, Yu-Shu; Pan, Lehua; Pruess, Karsten

2004-01-01T23:59:59.000Z

14

Electrokinetic coupling in unsaturated porous media  

E-Print Network (OSTI)

borehole radar and electrical resistivity geophysical datarange 0.1100 kHz. Electrical resistivity measurements werebrine used for all the electrical resistivity and streaming

Revil, A.; Linde, N.; Cerepi, A.; Jougnot, D.; Matthai, S.; Finsterle, S.

2008-01-01T23:59:59.000Z

15

Nonclassical transport processes in geologic media: Review of field and laboratory observations and basic physical concepts  

Science Conference Proceedings (OSTI)

We present an overview of the problem of solute transport in unsaturated heterogeneous media. We first review field and laboratory observations that demonstrate nonclassical flow and transport behavior. The main physical principles causing anomalous transport regimes in fractured rock media are identified. The basic factors and physical concepts needed to describe anomalous transport in saturated and unsaturated fractured rock are discussed in detail.

Bolshov, L.; Kondratenko, P.; Pruess, K.; Semenov, V.

2008-09-01T23:59:59.000Z

16

Stochastic analysis of flow in a heterogeneous unsaturated-saturated system  

E-Print Network (OSTI)

of multiscale, nonstationary medium features. The unsaturated and saturated zones are coupled through the water table, whose position is random in randomly heterogeneous porous media. The presence of the water table zones [e.g., Dagan and Bresler, 1979; Bresler and Dagan, 1981; Andersson and Shapiro, 1983; Yeh et al

Zhang, Dongxiao

17

PNNL: Available Technologies: Communications & Media Industry  

Industry: Communications & Media. Click on the portfolios below to view the technologies that may have potential applications in the ...

18

Numerical simulation of unsaturated soil behaviour  

Science Conference Proceedings (OSTI)

The mechanical behaviour of unsaturated soils is one of the challenging topics in the field of geotechnical engineering. The use of finite element techniques is considered to be a promising method to solve settlement and heave problems, which are associated ... Keywords: FEM, constitutive modelling, finite element method, geotechnical engineering, mechanical behaviour, shallow foundation, shallow foundations, soil behaviour, suction variation, unsaturated soils

Ayman A. Abed; Pieter A. Vermeer

2009-01-01T23:59:59.000Z

19

25-26). Everyday Creativity as Civic Engagement: A Cultural Citizenship View of New Media. Paper presented at the Communications Policy & Research Forum  

E-Print Network (OSTI)

In the policy imagination, the practice of citizenship has conventionally been separated from entertainment, leisure and consumption activities. This interpretation is based on a traditional but narrow view of the public sphere that focuses on political and civic rights and responsibilities. According to this view, the cultural dimensions of citizenship are usually

Jean Burgess; Marcus Foth; Helen Klaebe

2006-01-01T23:59:59.000Z

20

Recent developments in the techniques of controlling and measuring suction in unsaturated soils  

E-Print Network (OSTI)

The difficulty of measuring and controlling suction in unsaturated soils is one of the reasons why the development of the mechanics of unsaturated soils has not been as advanced as that of saturated soils. However, significant developments have been carried out in the last decade in this regard. In this paper, a re-view of some developments carried out in the techniques of controlling suction by using the axis translation, the osmotic method and the vapour control technique is presented. The paper also deals with some recent de-velopments in the direct measurement of suction by using high capacity tensiometers and in the measurement of high suction by using high range psychrometers. The recent progresses made in these techniques have been significant and will certainly help further experimental investigation of the hydromechanical behaviour of un-saturated soils.

Delage, Pierre; Tarantino, Alessandro

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Temporal Damping Effect of the Yucca Mountain Fractured Unsaturated Rock on Transient Infiltration Pulses  

E-Print Network (OSTI)

unsaturated zone at Yucca Mountain. J. of Cont. Hydrol. ,2003b. Calibration of Yucca Mountain unsaturated zone flowthe unsaturated zone, Yucca Mountain, USGS Water Resources

Zhang, Keni; Wu, Yu-Shu; Pan, Lehua

2005-01-01T23:59:59.000Z

22

Behavior of spent fuel under unsaturated conditions  

Science Conference Proceedings (OSTI)

To evaluate the performance of spent fuel in the potential repository at Yucca Mountain, Nevada, spent fuel fragments are being exposed to small and intermittent amounts of simulated groundwater under unsaturated conditions. Both the leachate and the visual appearance of the spent fuel have been characterized for 581 days of testing. The amount of Am and Cm measured in the leachates was one to two orders of magnitude greater than that released from spent fuel under saturated conditions. The cause of this difference has not been firmly identified but may be attributable to the presence of large amounts of actinide-containing colloids in the leachate of the unsaturated tests.

Finn, P.A.; Hoh, J.C.; Bates, J.K.; Wolf, S.F. [Argonne National Lab., IL (United States). Chemical Technology Div.

1994-12-31T23:59:59.000Z

23

Oxidative dehydrogenation of alkanes to unsaturated hydrocarbons  

DOE Patents (OSTI)

Oxidative dehydrogenation of alkanes to unsaturated hydrocarbons is carried out over metal vanadate catalysts under oxidizing conditions. The vanadate catalysts are represented by the formulas M[sub 3](VO[sub 4])[sub 2] and MV[sub 2]O[sub 6], M representing Mg, Zn, Ca, Pb, or Cd. The reaction is carried out in the presence of oxygen, but the formation of oxygenate by-products is suppressed.

Kung, H.H.; Chaar, M.A.

1988-10-11T23:59:59.000Z

24

TOUGH: a numerical model for nonisothermal unsaturated flow to study waste canister heating effects  

Science Conference Proceedings (OSTI)

The physical processes modeled and the mathematical and numerical methods employed in a simulator for non-isothermal flow of water, vapor, and air in permeable media are briefly summarized. The simulator has been applied to study thermo-hydrological conditions in the near vicinity of high-level nuclear waste packages emplaced in unsaturated rocks. The studies reported here specifically address the question whether or not the waste canister environment will dry up in the thermal phase. 13 references, 8 figures, 2 tables.

Pruess, K.; Wang, J.S.Y.

1983-12-01T23:59:59.000Z

25

Evil Media  

Science Conference Proceedings (OSTI)

Evil Media develops a philosophy of media power that extends the concept of media beyond its tried and trusted use in the games of meaning, symbolism, and truth. It addresses the gray zones in which media exist as corporate work systems, algorithms ...

Matthew Fuller; Andrew Goffey

2012-08-01T23:59:59.000Z

26

A Mountain-Scale Thermal Hydrologic Model for Simulating Fluid Flow and Heat Transfer in Unsaturated Fractured Rock  

E-Print Network (OSTI)

Studies Using the Yucca Mountain Unsaturated Zone Model,Unsaturated Zone at Yucca Mountain, Nevada, to Thermal LoadUnsaturated Zone, Yucca Mountain, Nevada, Water-Resources

Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, Gudmundur S.

2005-01-01T23:59:59.000Z

27

Characterizing unsaturated diffusion in porous tuff gravel  

SciTech Connect

Evaluation of solute diffusion in unsaturated porous gravel is very important for investigations of contaminant transport and remediation, risk assessment, and waste disposal (for example, the potential high-level nuclear waste repository at Yucca Mountain, Nevada). For a porous aggregate medium such as granular tuff, the total water content is comprised of surface water and interior water. The surface water component (water film around grains and pendular water between the grain contacts) could serve as a predominant diffusion pathway. To investigate the extent to which surface water films and contact points affect solute diffusion in unsaturated gravel, we examined the configuration of water using x-ray computed tomography in partially saturated gravel, and made quantitative measurements of diffusion at multiple water contents using two different techniques. In the first, diffusion coefficients of potassium chloride in 2-4 mm granular tuff at multiple water contents were calculated from electrical conductivity measurements using the Nernst-Einstein equation. In the second, we used laser ablation with inductively coupled plasma-mass spectrometry to perform micro-scale mapping, allowing the measurement of diffusion coefficients for a mixture of chemical tracers for tuff cubes and tetrahedrons having two contact geometries (cube-cube and cube-tetrahedron). The x-ray computed tomography images show limited contact between grains, and this could hinder the pathways for diffusive transport. Experimental results show the critical role of surface water in controlling transport pathways and hence the magnitude of diffusion. Even with a bulk volumetric water content of 1.5%, the measured solute diffusion coefficient is as low as 1.5 x 10{sup -14} m{sup 2}/s for tuff gravel. Currently used diffusion models relating diffusion coefficients to total volumetric water content inadequately describe unsaturated diffusion behavior in porous gravel at very low water contents.

Hu, Qinhong; Kneafsey, Timothy J.; Roberts, Jeffery J.; Tomutsa, Liviu; Wang, Joseph, S.Y.

2003-11-12T23:59:59.000Z

28

Review and selection of unsaturated flow models  

SciTech Connect

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.

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

1994-04-04T23:59:59.000Z

29

NaturAnalogs for the Unsaturated Zone  

Science Conference Proceedings (OSTI)

The purpose of this Analysis/Model Report (AMR) is to document natural and anthropogenic (human-induced) analog sites and processes that are applicable to flow and transport processes expected to occur at the potential Yucca Mountain repository in order to build increased confidence in modeling processes of Unsaturated Zone (UZ) flow and transport. This AMR was prepared in accordance with ''AMR Development Plan for U0135, Natural Analogs for the UZ'' (CRWMS 1999a). Knowledge from analog sites and processes is used as corroborating information to test and build confidence in flow and transport models of Yucca Mountain, Nevada. This AMR supports the Unsaturated Zone (UZ) Flow and Transport Process Model Report (PMR) and the Yucca Mountain Site Description. The objectives of this AMR are to test and build confidence in the representation of UZ processes in numerical models utilized in the UZ Flow and Transport Model. This is accomplished by: (1) applying data from Boxy Canyon, Idaho in simulations of UZ flow using the same methodologies incorporated in the Yucca Mountain UZ Flow and Transport Model to assess the fracture-matrix interaction conceptual model; (2) Providing a preliminary basis for analysis of radionuclide transport at Pena Blanca, Mexico as an analog of radionuclide transport at Yucca Mountain; and (3) Synthesizing existing information from natural analog studies to provide corroborating evidence for representation of ambient and thermally coupled UZ flow and transport processes in the UZ Model.

A. Simmons; A. Unger; M. Murrell

2000-03-08T23:59:59.000Z

30

Unsaturated hydraulic parameters determined from direct and indirect methods  

SciTech Connect

Hydraulic parameters are required for numerical simulations of unsaturated flow at Yucca Mountain, a vertically heterogeneous volcanic site for a potential high-level waste repository in the desert southwest. In this paper, direct measurements of the unsaturated hydraulic conductivity using a centrifuge with a specialized rotor are compared to those estimated using a predictive conductivity equation and two methods of measuring moisture retention.

Flint, Lorraine E.; Hudson, David B.; Flint, Alan L.

1997-10-22T23:59:59.000Z

31

Modeling studies of mountain-scale radionuclide transport in the unsaturated zone at Yucca Mountain, Nevada  

E-Print Network (OSTI)

Investigations at Yucca Mountain - The Potential Repositoryin the Unsaturated Zone, Yucca Mountain, Nevada, ResourcesIN THE UNSATURATED ZONE AT YUCCA MOUNTAIN, NEVADA George J.

Moridis, George J.; Seol, Yongkoo; Wu, Yu-Shu

2003-01-01T23:59:59.000Z

32

Flow dynamics and solute transport in unsaturated rock fractures  

E-Print Network (OSTI)

and H. Brenner, Multiphase flow in porous media, Ann. Rev.to describe multiphase flow in porous media, involvingflow in porous media, can be generalized for multiphase flow

Su, G.W.

2011-01-01T23:59:59.000Z

33

Social Media | National Nuclear Security Administration  

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

Social Media | National Nuclear Security Administration Social Media | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Social Media Home > Media Room > Social Media Social Media View NNSA's entire social media posts from Facebook, Twitter, Flickr and Youtube 1 day 10 hours ago Lt. Gen. Tom Bostick, commanding general of the U.S. Army Corps of

34

For Media  

Science Conference Proceedings (OSTI)

... Heartland Health CEO Talks Value Article from HealthLeaders Media Cargill Corn Milling Receives Malcolm Baldrige Quality Award News release ...

2013-07-13T23:59:59.000Z

35

Temperature and Humidity Profiles in Mesoscale Unsaturated Downdrafts  

Science Conference Proceedings (OSTI)

Profiles of temperature and humidity beneath precipitating anvil clouds in tropical convective systems suggest the presence of a mesoscale unsaturated downdraft there. In this paper, a one-dimensional, steady-state, hydrostatic model of a ...

Colleen A. Leary

1980-05-01T23:59:59.000Z

36

Designing presentations for on-demand viewing  

Science Conference Proceedings (OSTI)

Increasingly often, presentations are given before a live audience, while simultaneously being viewed remotely and recorded for subsequent viewing on-demand over the Web. How should video presentations be designed for web access? How is video accessed ... Keywords: digital library, streaming media, video on-demand

Liwei He; Jonathan Grudin; Anoop Gupta

2000-12-01T23:59:59.000Z

37

An Integrated Modeling Analysis of Unsaturated Flow Patterns inFractured Rock  

Science Conference Proceedings (OSTI)

Characterizing percolation patterns in unsaturated zones hasposed a greater challenge to numerical modeling investigations thancomparable saturated zone studies, because of the heterogeneous nature ofunsaturated media as well as the great number of variables impactingunsaturated zone flow. This paper presents an integrated modelingmethodology for quantitatively characterizing percolation patterns in theunsaturated zone of Yucca Mountain, Nevada, a proposed undergroundrepository site for storing high-level radioactive waste. It takes intoaccount the multiple coupled processes of air, water, heat flow andchemical isotopic transport in Yucca Mountain s highly heterogeneous,unsaturated fractured tuffs. The modeling approach integrates a widevariety of moisture, pneumatic, thermal, and isotopic geochemical fielddata into a comprehensive three-dimensional numerical model for modelinganalyses. Modeling results are examined against different types offield-measured data and then used to evaluate different hydrogeologicalconceptual models and their results of flow patterns in the unsaturatedzone. In particular, this integration model provides a much clearerunderstanding of percolation patterns and flow behavior through theunsaturated zone, both crucial issues in assessing repositoryperformance. The integrated approach for quantifying Yucca Mountain sflow system is also demonstrated to provide a comprehensive modeling toolfor characterizing flow and transport processes in complex subsurfacesystems.

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson,Gudmundur S.

2005-03-21T23:59:59.000Z

38

Boundary integral methods for unsaturated flow  

Science Conference Proceedings (OSTI)

Many large simulations may be required to assess the performance of Yucca Mountain as a possible site for the nations first high level nuclear waste repository. A boundary integral equation method (BIEM) is described for numerical analysis of quasilinear steady unsaturated flow in homogeneous material. The applicability of the exponential model for the dependence of hydraulic conductivity on pressure head is discussed briefly. This constitutive assumption is at the heart of the quasilinear transformation. Materials which display a wide distribution in pore-size are described reasonably well by the exponential. For materials with a narrow range in pore-size, the exponential is suitable over more limited ranges in pressure head. The numerical implementation of the BIEM is used to investigate the infiltration from a strip source to a water table. The net infiltration of moisture into a finite-depth layer is well-described by results for a semi-infinite layer if {alpha}D > 4, where {alpha} is the sorptive number and D is the depth to the water table. the distribution of moisture exhibits a similar dependence on {alpha}D. 11 refs., 4 figs.,

Martinez, M.J.; McTigue, D.F.

1990-12-31T23:59:59.000Z

39

Repository site data report for unsaturated tuff, Yucca Mountain, Nevada  

Science Conference Proceedings (OSTI)

The US Department of Energy is currently considering the thick sequences of unsaturated, fractured tuff at Yucca Mountain, on the southwestern boundary of the Nevada Test Site, as a possible candidate host rock for a nuclear-waste repository. Yucca Mountain is in one of the most arid areas in the United States. The site is within the south-central part of the Great Basin section of the Basin and Range physiographic province and is located near a number of silicic calderas of Tertiary age. Although localized zones of seismic activity are common throughout the province, and faults are present at Yucca Mountain, the site itself is basically aseismic. No data are available on the composition of ground water in the unsaturated zone at Yucca Mountain. It has been suggested that the composition is bounded by the compositions of water from wells USW-H3, UE25p-1, J-13, and snow or rain. There are relatively few data available from Yucca Mountain on the moisture content and saturation, hydraulic conductivity, and characteristic curves of the unsaturated zone. The available literature on thermomechanical properties of tuff does not always distinguish between data from the saturated zone and data from the unsaturated zone. Geochemical, hydrologic, and thermomechanical data available on the unsaturated tuffs of Yucca Mountain are tabulated in this report. Where the data are very sparse, they have been supplemented by data from the saturated zone or from areas other than Yucca Mountain. 316 refs., 58 figs., 37 tabs.

Tien, P.L.; Updegraff, C.D.; Siegel, M.D.; Wahi, K.K.; Guzowski, R.V.

1985-11-01T23:59:59.000Z

40

Revisiting the thermodynamics of hardening plasticity for unsaturated soils  

E-Print Network (OSTI)

A thermodynamically consistent extension of the constitutive equations of saturated soils to unsaturated conditions is often worked out through the use a unique 'effective' interstitial pressure, accounting equivalently for the pressures of the saturating fluids acting separately on the internal solid walls of the pore network. The natural candidate for this effective interstitial pressure is the space averaged interstitial pressure. In contrast experimental observations have revealed that, at least, a pair of stress state variables was needed for a suitable framework to describe stress-strain-strength behaviour of unsaturated soils. The thermodynamics analysis presented here shows that the most general approach to the behaviour of unsaturated soils actually requires three stress state variables: the suction, which is required to describe the invasion of the soil by the liquid water phase through the retention curve; two effective stresses, which are required to describe the soil deformation at water saturati...

Coussy, Olivier; Vaunat, Jean; 10.1016/j.compgeo.2009.09.003

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Numerical evaluation of effective unsaturated hydraulic properties for fractured rocks  

Science Conference Proceedings (OSTI)

To represent a heterogeneous unsaturated fractured rock by its homogeneous equivalent, Monte Carlo simulations are used to obtain upscaled (effective) flow properties. In this study, we present a numerical procedure for upscaling the van Genuchten parameters of unsaturated fractured rocks by conducting Monte Carlo simulations of the unsaturated flow in a domain under gravity-dominated regime. The simulation domain can be chosen as the scale of block size in the field-scale modeling. The effective conductivity is computed from the steady-state flux at the lower boundary and plotted as a function of the averaging pressure head or saturation over the domain. The scatter plot is then fitted using van Genuchten model and three parameters, i.e., the saturated conductivity K{sub s}, the air-entry parameter {alpha}, the pore-size distribution parameter n, corresponding to this model are considered as the effective K{sub s}, effective {alpha}, and effective n, respectively.

Lu, Zhiming [Los Alamos National Laboratory; Kwicklis, Edward M [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

42

A site scale model for modeling unsaturated zone processes at Yucca Mountain, Nevada  

E-Print Network (OSTI)

Unsaturated Zone Model of Yucca Mountain, Nevada, for theZone Trocesses at yucca Mountain, N G. S. Bodvarsson, Y. S.unsaturated zone at Yucca Mountain, Nevada, as a permanent

1997-01-01T23:59:59.000Z

43

A mountain-scale model for characterizing unsaturated flow and transport in fractured tuffs of Yucca Mountain  

E-Print Network (OSTI)

to Fault Zones at Yucca Mountain, Nevada, International2003c. Calibration of Yucca Mountain Unsaturated Zone FlowUnsaturated Zone, Yucca Mountain, Nevada, Water-Resources

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Bodvarsson, G.S.

2003-01-01T23:59:59.000Z

44

The Influence of Proposed Repository Thermal Load on Multiphase Flow and Heat Transfer in the Unsaturated Zone of Yucca Mountain  

E-Print Network (OSTI)

Studies Using the Yucca Mountain Unsaturated Zone Model,Unsaturated Zone at Yucca Mountain, Nevada, to Thermal LoadLarge Block Test at Yucca Mountain, Nevada, Water Resources

Wu, Y.-S.; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, G.S.

2006-01-01T23:59:59.000Z

45

Modeling thermal-hydrological response of the unsaturated zone at Yucca Mountain, Nevada, to thermal load at a potential repository  

E-Print Network (OSTI)

Repository at Yucca Mountain. In Materials Research Societystudies using the Yucca Mountain unsaturated zone model.Unsaturated Zone, Yucca Mountain, Nevada. Water Resources

Haukwa, C.B.; Wu, Yu-Shu; Bodvarsson, G.S.

2002-01-01T23:59:59.000Z

46

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents (OSTI)

Quick setting polymer concrete compositions which are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate which may be wet and a source of bivalent metallic ions which will set to polymer concrete with excellent structural properties.

Sugama, T.; Kukacka, L.E.; Horn, W.H.

1981-11-04T23:59:59.000Z

47

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents (OSTI)

Quick setting polymer concrete compositions with excellent structural properties are disclosed; these polymer concrete compositions are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate, which may be wet, and with a source of bivalent metallic ions.

Sugama, Toshifumi (Mastic Beach, NY); Kukacka, Lawrence E. (Port Jefferson, NY); Horn, William H. (Brookhaven, NY)

1985-01-01T23:59:59.000Z

48

Electropositive bivalent metallic ion unsaturated polyester complexed polymer concrete  

DOE Patents (OSTI)

Quick setting polymer concrete compositions are described which are mixtures of unsaturated polyesters and crosslinking monomers together with appropriate initiators and promoters in association with aggregate which may be wet and a source of bivalent metallic ions which will set to polymer concrete with excellent structural properties.

Sugama, T.; Kukacka, L.E.; Horn, W.H.

1983-05-13T23:59:59.000Z

49

Stochastic analysis of unsaturated flow with probabilistic collocation method  

E-Print Network (OSTI)

with probabilistic collocation method, Water Resour. Res., 45, W08425, doi:10.1029/2008WR007530. 1. Introduction [2, the vadose zone has received increasing attention in recent years. Because of the coexis- tence of water to study the effect of spatial variability on flow in unsaturated zone [Jury, 1982; Yeh et al., 1985a, 1985

Lu, Zhiming

50

Computational upscaled modeling of heterogeneous porous media flow utilizing finite volume method  

E-Print Network (OSTI)

In this dissertation we develop and analyze numerical method to solve general elliptic boundary value problems with many scales. The numerical method presented is intended to capture the small scales e?ect on the large scale solution without resolving the small scale details, which is done through the construction of a multiscale map. The multiscale method is more e?ective when the coarse element size is larger than the small scale length. To guarantee a numerical conservation, a ?nite volume element method is used to construct the global problem. Analysis of the multiscale method is separately done for cases of linear and nonlinear coe?cients. For linear coe?cients, the multiscale ?nite volume element method is viewed as a perturbation of multiscale ?nite element method. The analysis uses substantially the existing ?nite element results and techniques. The multiscale method for nonlinear coe?cients will be analyzed in the ?nite element sense. A class of correctors corresponding to the multiscale method will be discussed. In turn, the analysis will rely on approximation properties of this correctors. Several numerical experiments verifying the theoretical results will be given. Finally we will present several applications of the multiscale method in the ?ow in porous media. Problems that we will consider are multiphase immiscible ?ow, multicomponent miscible ?ow, and soil in?ltration in saturated/unsaturated ?ow.

Ginting, Victor Eralingga

2003-05-01T23:59:59.000Z

51

Low-frequency dilatational wave propagation through unsaturated porous media containing two immiscible fluids  

E-Print Network (OSTI)

of the porous medium frame K b , the multiphase interstitialin a porous medium to be represented by a single multiphase

Lo, W.-C.

2009-01-01T23:59:59.000Z

52

Centrifuge Techniques and Apparatus for Transport Experiments in Porous Media  

SciTech Connect

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

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

2010-06-01T23:59:59.000Z

53

A multiphase constitutive modeling framework for unsaturated soil behavior  

E-Print Network (OSTI)

We develop a framework for constitutive modeling of unsaturated soils that has the embedded elements of lower scale grain to grain contacts. Continuum models developed from this framework will possess two different phases idealizing the solid grains and their interactions. As a consequence, two different constitutive relationships, corresponding to the grain to grain contact and bulk behavior, co-exist in a constitutive model and govern the response of the model. To be specific, grain to grain sliding under dry or wet condition is idealized and appears as a simple contact law embedded in a continuum framework. There is no need to define plastic strain, as this quantity naturally emerges at the continuum scale as the consequence of frictional sliding at the lower scale. In addition, the effective stress can be naturally worked out from the grain to grain contact law embedded in the model without being subjected to any interpretation. This, in our opinion, is a closer representation of unsaturated soil behavior, compared to existing continuum approaches that map everything onto a single stress-strain relationship. In this paper, the framework is presented in its simplest form that takes into account sliding on a single orientation. Grain to grain contact law with capillary effects is used for the demonstration of the concept, and the technical details behind it. Generalization of the framework for better representation of unsaturated soil behavior will also be sketched out.

Giang D. Nguyen; Yixiang Gan

2013-10-31T23:59:59.000Z

54

Media Contacts  

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

Media Contacts Media Contacts ORO Public Affairs Office Mike Koentop, Acting Director P.O. Box 2001, M-4 Oak Ridge, TN 37831 (865) 576-0885 or 1-800-382-6938, Option 1 ORNL Communications and External Relations Claire Sinclair Oak Ridge National Laboratory P.O. Box 2008, MS-6269 Oak Ridge, TN 37831 (865) 576-7710 sinclairca@ornl.gov UCOR Public Affairs Fran Smith P.O. Box 4699, MS-7298 Oak Ridge, TN 37831 (865) 241-4690 or 1-800-382-6938, Option 4 B&W Y-12 Public Affairs Alice Brandon P.O. Box 2009 Oak Ridge, TN 37831-8245 (865) 576-2963 brandonam@y12.doe.gov Oak Ridge Institute for Science and Education Pam Bonee, Director of Communications P.O. Box 117 Oak Ridge, TN 37831-0117 (865) 576-3147 Pam.Bonee@orau.org American Museum of Science and Energy Lissa Clarke 300 South Tulane Ave.

55

Media Contacts  

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

Media Contacts Media Contacts Allan Chen A_Chen@lbl.gov (510) 486-4210 Jon Weiner JRWeiner@lbl.gov (510) 486-4014 Gregory Rosenquist GJRosenquist@lbl.gov (510) 486-6851 Richard Brown REBrown@lbl.gov (510) 486-5896 Alan Meier AKMeier@lbl.gov (510) 486-4740 Bruce Nordman BNordman@lbl.gov (510) 486-7089 Nancy Brown NJBrown@lbl.gov (510) 486-4241 Marc Fischer MLFischer@lbl.gov (510) 486-5539 Melissa Lunden MMLunden@lbl.gov (510) 486-4891 Brett Singer BCSinger@lbl.gov (510) 486-4779 Thomas Kirchstetter TWKirchstetter@lbl.gov (510) 486-7071 Melissa Lunden MMLunden@lbl.gov (510) 486-4891 Tihomir Novakov TNovakov@lbl.gov (510) 486-6928 Marc Fischer MLFischer@lbl.gov (510) 486-5539 Vincent Battaglia VSBattaglia@lbl.gov (510) 486-7172 Guoying Chen GChen@lbl.gov (510) 486-5843

56

View-Augmented Abstractions  

Science Conference Proceedings (OSTI)

This paper introduces view-augmented abstractions, which specialize an underlying numeric domain to focus on a particular expression or set of expressions. A view-augmented abstraction adds a set of materialized views to the original domain. View augmentation ... Keywords: Numeric abstract domains, abstract-interpretation precision, view maintenance

Matt Elder; Denis Gopan; Thomas Reps

2010-10-01T23:59:59.000Z

57

Estimating large-scale fracture permeability of unsaturated rock using barometric pressure data  

E-Print Network (OSTI)

Studies Facility, Yucca Mountain, Nevada, U.S. GeologicalUnsaturated Zone, Yucca Mountain, Nevada, Water-Resourcesstudies facility, Yucca Mountain, Nevada, U.S. Geological

Wu, Yu-Shu; Zhang, Keni; Liu, Hui-Hai

2005-01-01T23:59:59.000Z

58

Calibration of Yucca Mountain unsaturated zone flow and transport model using porewater chloride data  

E-Print Network (OSTI)

of hydrogeologic units at Yucca Mountain, Nevada. U.S.infiltration for the Yucca Mountain Area, Nevada. Milestonethe unsaturated zone at Yucca Mountain, Nevada. J. Contam.

Liu, Jianchun; Sonnenthal, Eric L.; Bodvarsson, Gudmundur S.

2002-01-01T23:59:59.000Z

59

Conceptual evaluation of the potential role of fractures in unsaturated processes at Yucca Mountain  

E-Print Network (OSTI)

of Process Models, Yucca Mountain, Nevada. U.S. GeologicalUnsaturated Zone Model of Yucca Mountain, Nevada. J. Contam.Studies Facility, Yucca Mountain Project. Yucca Mountain,

Hinds, Jennifer J.; Bodvarsson, Gudmundur S.; Nieder-Westermann, Gerald H.

2002-01-01T23:59:59.000Z

60

In Situ Characterization of Unsaturated Soil Hydraulic Properties at the Maricopa Environmental Monitoring Site.  

E-Print Network (OSTI)

??Characterization of the unsaturated hydraulic properties is fundamental in modeling soil water flow and contaminant transport in the vadose zone. The objective of this study (more)

Graham, Aaron Robert.

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Effects of dry fractures on matrix diffusion in unsaturated fractured rocks  

E-Print Network (OSTI)

Moridis, G. and Q. Hu, Radionuclide transport models underAn important factor in radionuclide retardation? J. Geophys.and G. Y. Bussod, Radionuclide transport in the unsaturated

Seol, Yongkoo; Liu, Hui Hai; Bodvarsson, Gudmundur S.

2002-01-01T23:59:59.000Z

62

Modeling studies of mountain-scale radionuclide transport in the unsaturated zone at Yucca Mountain, Nevada  

E-Print Network (OSTI)

Wu, and G.S. Bodvarsson, Radionuclide Transport Models Underdaughters of certain radionuclides. Increasing infiltrationOF MOUNTAIN-SCALE RADIONUCLIDE TRANSPORT IN THE UNSATURATED

Moridis, George J.; Seol, Yongkoo; Wu, Yu-Shu

2003-01-01T23:59:59.000Z

63

Media Contacts | ORNL  

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

media outlets on news stories about the laboratory. Media seeking more information on ORNL research and development activities may refer to the resources listed below. General...

64

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

SciTech Connect

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.

Brian A. Ebel; John R. Nimmo

2009-09-11T23:59:59.000Z

65

Unsaturated hydraulic conductivity of compacted sand-kaolin mixtures  

SciTech Connect

The unsaturated hydraulic conductivity of compacted sand-kaolin mixtures containing 0, 5, 10, and 30% kaolin (by dry weight) is measured for matric suctions, {psi}{sub m} < {approximately} 6.0 m. The measured unsaturated hydraulic conductivity (k{sub m}) values are compared with predicted unsaturated hydraulic conductivity (k{sub p}) values using the Brooks-Corey-Burdine and van Genuchten-Mualem relative hydraulic conductivity functions. In general, the accuracy of k{sub p} decreases with an increase in kaolin content or an increase in {psi}{sub m}. In addition, k{sub m} tends to be underpredicted for kaolin contents of 10 and 30% at relatively high suctions (1.0 m {le} {psi}{sub m} {le} 6.0 m) and overpredicted for kaolin contents of 0 and 5% at relatively low suctions (0.1 m {le} {psi}{sub m} < 1.0 m). For a given kaolin content and {psi}{sub m}, k{sub p} based on the Brooks-Corey-Burdine function tends to be more accurate than k{sub m} based on the van Genuchten-Mualem function. Finally, for 1.0 m {le} {psi}{sub m} {le} 6.0 m, k{sub p} based on analysis using the maximum volumetric water content ({theta}{sub m}) attained under steady-state flow conditions typically is more accurate than k{sub p} based on analysis using the saturated volumetric water content, {theta}{sub s}, where {theta}{sub m} {approximately} 84--90% of {theta}{sub s} in this study.

Chiu, T.F. [Genesis Group, Taipei (Taiwan, Province of China); Shackelford, C.D. [Colorado State Univ., Fort Collins, CO (United States). Dept. of Civil Engineering

1998-02-01T23:59:59.000Z

66

Unsaturated Zone and Saturated Zone Transport Properties (U0100)  

Science Conference Proceedings (OSTI)

This Analysis/Model Report (AMR) summarizes transport properties for the lower unsaturated zone hydrogeologic units and the saturated zone at Yucca Mountain and provides a summary of data from the Busted Butte Unsaturated Zone Transport Test (UZTT). The purpose of this report is to summarize the sorption and transport knowledge relevant to flow and transport in the units below Yucca Mountain and to provide backup documentation for the sorption parameters decided upon for each rock type. Because of the complexity of processes such as sorption, and because of the lack of direct data for many conditions that may be relevant for Yucca Mountain, data from systems outside of Yucca Mountain are also included. The data reported in this AMR will be used in Total System Performance Assessment (TSPA) calculations and as general scientific support for various Process Model Reports (PMRs) requiring knowledge of the transport properties of different materials. This report provides, but is not limited to, sorption coefficients and other relevant thermodynamic and transport properties for the radioisotopes of concern, especially neptunium (Np), plutonium (Pu), Uranium (U), technetium (Tc), iodine (I), and selenium (Se). The unsaturated-zone (UZ) transport properties in the vitric Calico Hills (CHv) are discussed, as are colloidal transport data based on the Busted Butte UZTT, the saturated tuff, and alluvium. These values were determined through expert elicitation, direct measurements, and data analysis. The transport parameters include information on interactions of the fractures and matrix. In addition, core matrix permeability data from the Busted Butte UZTT are summarized by both percent alteration and dispersion.

J. Conca

2000-12-20T23:59:59.000Z

67

A medical tracking system for contrast media  

Science Conference Proceedings (OSTI)

Contrast media is a kind of chemical substance used to improve the image quality of Computed Tomography. However, due to its high speed of injection, emergencies (such as capillary hemorrhage) always exist. In view of this problem, a video object tracking ... Keywords: color histogram, mean shift algorithm, tracking, visual tracking

Chuan Dai; Zhelong Wang; Hongyu Zhao

2010-09-01T23:59:59.000Z

68

Flow dynamics and solute transport in unsaturated rock fractures  

DOE Green Energy (OSTI)

Rock fractures play an important role in flow and contaminant transport in fractured aquifers, production of oil from petroleum reservoirs, and steam generation from geothermal reservoirs. In this dissertation, phenomenological aspects of flow in unsaturated fractures were studied in visualization experiments conducted on a transparent replica of a natural, rough-walled rock fracture for inlet conditions of constant pressure and flow rate over a range of angles of inclination. The experiments demonstrated that infiltrating liquid proceeds through unsaturated rock fractures along non-uniform, localized preferential flow paths. Even in the presence of constant boundary conditions, intermittent flow was a persistent flow feature observed, where portions of the flow channel underwent cycles of snapping and reforming. Two modes of intermittent flow were observed, the pulsating blob mode and the rivulet snapping mode. A conceptual model for the rivulet snapping mode was proposed and examined using idealized, variable-aperture fractures. The frequency of intermittent flow events was measured in several experiments and related to the capillary and Bond numbers to characterize this flow behavior.

Su, G. W.

1999-10-01T23:59:59.000Z

69

Vapor Flow to Horizontal Wells in Unsaturated Zones Hongbin Zhan* and Eungyu Park  

E-Print Network (OSTI)

Vapor Flow to Horizontal Wells in Unsaturated Zones Hongbin Zhan* and Eungyu Park ABSTRACT and vaporthree dimensional form for a horizontal-well sink in an unsaturated zone. This is done by solving; horizontal-well axis to obtain the solution of flow to a horizontal-well Zhan and Cao, 2000). Horizontal

Zhan, Hongbin

70

Lawrence Livermore National Laboratory: Social Media  

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

Social Media Social Media By staying on the cutting edge of Web communication, the News Center at LLNL reaches out to the media and the public through a variety of social media and multimedia Websites: Flickr An image- and video-hosting Website. Visit now and view the LLNL photostream in a variety of formats. Twitter A microblogging service. Sign up today and get short, tiimely messages about the Livermore Lab. Facebook A social-networking Website with more than 500 million active users. Enlist now to become a "friend" of LLNL. RSS A Web-feed service that sends content to subscribers automatically. Enroll at once to get the latest LLNL headlines. Utube A video-sharing Website. Navigate here to immediately watch the latest in cutting-edge science and technology at the Laboratory.

71

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

Open Energy Info (EERE)

Site-Scale Model For Fluid And Heat Flow In The Unsaturated Zone Of Yucca Site-Scale Model For Fluid And Heat Flow In The Unsaturated Zone Of Yucca Mountain, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Site-Scale Model For Fluid And Heat Flow In The Unsaturated Zone Of Yucca Mountain, Nevada Details Activities (0) Areas (0) Regions (0) Abstract: A three-dimensional unsaturated-zone numerical model has been developed to simulate flow and distribution of moisture, gas and heat at Yucca Mountain, Nevada, a potential repository site for high-level radioactive waste. The model takes into account the simultaneous flow dynamics of liquid water, vapor, air and heat in the highly heterogeneous, fractured porous rock in the unsaturated zone (UZ). This model is intended for use in the prediction of the current and future conditions in the UZ so

72

User_ViewRecords  

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

User Records User Records © 2011 SuccessFactors, Inc. - 1 - SuccessFactors Learning Confidential. All rights reserved. Job Aid: Viewing User Records Purpose The purpose of this job aid is to guide users through the step-by-step process of viewing their records. Each task demonstrates viewing of different records. Task A. View To-Do List Enter the web address (URL) of the user application into your browser Address field and press the Enter key. Enter your user ID in the User ID textbox. Enter your password in the Password textbox. Click Sign In. View To-Do List (filter, view) 7 Steps Task A View Completed Work 8 Steps Task B View Curriculum Status and Details 11 Steps Task C 3 3 1 2 2 1 SuccessFactors Learning v 6.4 User Job Aid Viewing User Records

73

Two Dimensional Polyamides Prepared From Unsaturated Carboxylic Acids And Amines.  

DOE Patents (OSTI)

A polyamide and a process for preparing the polyamide are disclosed. The process comprises reacting in a reaction mixture a monomer selected from unsaturated carboxylic acids, esters of unsaturated carboxylic acids, anhydrides of unsaturated carboxylic acids, and mixtures thereof, and a first amine to form an intermediate reaction product in the reaction mixture, wherein the first amine is selected from RR.sub.1 NH, RNH.sub.2, RR.sub.1 NH.sub.2.sup.+, RNH.sub.3.sup.+ and mixtures thereof, wherein R and R.sub.1 can be the same or different and each contain between about 1 and 50 carbon atoms and are optionally substituted with heteroatoms oxygen, nitrogen, sulfur, and phosphorus and combinations thereof, and reacting the intermediate reaction product and a second amine to form a polyamide, wherein the second amine is selected from R.sub.2 R.sub.3 NH, R.sub.2 NH.sub.2, R.sub.2 R.sub.3 NH.sub.2.sup.+, R.sub.2 NH.sub.3.sup.+ and mixtures thereof wherein R.sub.2 and R.sub.3 can be the same or different and each contain between about 1 and 50 carbon atoms and are optionally substituted with heteroatoms oxygen, nitrogen, sulfur, and phosphorus and combinations thereof, wherein multiple of the R, R.sub.1, R.sub.2, and R.sub.3 are in vertically aligned spaced relationship along a backbone formed by the polyamide. In one version of the invention, the monomer is selected from maleic anhydride, maleic acid esters, and mixtures thereof. In another version of the invention, the first amine is an alkylamine, such as tetradecylamine, and the second amine is a polyalkylene polyamine, such as pentaethylenehexamine. In yet another version of the invention, the first amine and the second amine are olefinic or acetylenic amines, such as the reaction products of an alkyldiamine and an acetylenic carboxylic acid. The first amine and the second amine may be the same or different depending on the desired polyamide polymer structure.

McDonald, William F. (Utica, OH); Huang, Zhi Heng (East Lansing, MI); Wright, Stacy C. (Lansing, MI); Danzig, Morris (Northbrook, IL); Taylor, Andrew C. (Ann Arbor, MI)

2002-07-17T23:59:59.000Z

74

Elements present in leach solutions from unsaturated spent fuel tests  

SciTech Connect

Preliminary results for the composition of the leachate from unsaturated tests at 90{degrees}C with spent fuel for 55--134 days with J-13 groundwater are reported. The pH of the leachate solutions was found to be acidic, ranging from 4 to 7. The actinide concentrations were 10{sup 5} greater than those reported for saturated spent fuel tests in which the leachate pH was 8. We also found that most species in the leachate were present as colloids containing both americium and curium. The presence of actinides in a form not currently included in repository radionuclide transport models provides information that can be used in spent fuel reaction modeling, the performance assessment of the repository and the design of the engineering barrier system. This report was prepared as part of the Yucca Mountain Site Characterization Project

Finn, P.A.; Bates, J.K.; Hoh, J.C.; Emery, J.W.; Hafenrichter, L.D.; Buck, E.C.; Gong, M.

1993-10-01T23:59:59.000Z

75

Transactional process views  

Science Conference Proceedings (OSTI)

To enable effective interorganisational collaborations, process providers have to disclose relevant parts of their local business processes in public process views. A public process view has to be consistent with the underlying private process. Local ...

Rik Eshuis; Jochem Vonk; Paul Grefen

2011-10-01T23:59:59.000Z

76

Media Inventory Control  

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

8 Media Inventory Control 11_0406 Page 1 of 5 8 Media Inventory Control 11_0406 Page 1 of 5 EOTA - Business Process Document Title: Media Inventory Control Document Number: ITTP-018 Rev. 09_0910 Document Owner: Janet Lee Backup Owner: Ben Aragon Approver(s): Melissa Otero Parent Document: Q-001, Quality Manual Notify of Changes: Referenced Document(s): MGTP-003 Customer Property, ISDP-002 Training Production Process, ADMP-001 Procurement Process, ADMP-003 Receiving/Inspection Process, ITTF-013 Media Requests ITTP-018 Media Inventory Control 11_0406 Page 2 of 5 Revision History: Rev. Description of Change A Initial Release B Added use of ITTF-013, Media Requests (SMS Records) 08_0904 Changed Media Specialist to Online Learning support Specialist (OLSS). Modified process to better fit actual media request process.

77

Media Contacts | ORNL  

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

Media Contacts Media Contacts ORNL's Communications team works with national, regional, and local media outlets on news stories about the laboratory. Media seeking more information on ORNL research and development activities may refer to the resources listed below. General questions not related to media queries may be sent to news@ornl.gov. Media Queries 865.574.4160 Experts List ORNL scientists and engineers are available as information resources for the media. For assistance in scheduling interviews, please contact the Office of Communications and External Relations at 865.574.4160. Photo Gallery Campus shots and research images from ORNL. Staff Contacts Email Phone David Keim Director, Communications keimdm@ornl.gov 865.576.9122 Barbara H. Penland Communications and Media Relations penlandb@ornl.gov 865.574.3664

78

Structure and electronic properties of saturated and unsaturated gallium nitride nanotubes  

DOE Green Energy (OSTI)

The atomic and electronic structures of saturated and unsaturated GaN nanotubes along the [001] direction with (100) lateral facets are studied using first-principles calculations. Atomic relaxation of nanotubes shows that appreciable distortion occurs in the unsaturated nanotubes. All the nanotubes considered, including saturated and unsaturated ones, exhibit semiconducting, with a direct band gap. Surface states arisen from the threefold-coordinated N and Ga atoms at the lateral facets exist inside the bulk-like band gap. When the nanotubes saturated with hydrogen, these dangling bond bands are removed from the band gap, but the band gap decreases with increasing the wall thickness of the nanotubes.

Wang, Zhiguo; Wang, Shengjie; Li, Jingbo; Gao, Fei; Weber, William J.

2009-11-05T23:59:59.000Z

79

Media & Communications Office  

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

Media & Communications Office Media & Communications Office Newsroom Photos Image Library Historic Images Photo Permissions Videos Fact Sheets Lab History News Categories Contacts Media & Communications Office news Part of the Community, Education, Government & Public Affairs Directorate, the Media & Communications Office provides information about Brookhaven National Laboratory to internal and external audiences through numerous communications vehicles. Our staff promotes Brookhaven's international reputation as a center for scientific excellence and innovation. We also publicize information about Laboratory events, policies and procedures. News Releases Media and Communications prepares all of the news releases on the Laboratory's science discoveries, announcements, events, and awards.

80

ARM - Social Media Guidance  

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

CenterSocial Media Guidance CenterSocial Media Guidance Media Contact Lynne Roeder lynne-dot-roeder-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes89 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 BAECC 1 BBOP 4 MAGIC 12 MC3E 17 SGP 2 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field Notes Blog feed Events feed Employment Research Highlights Data Announcements Education News Archive What's this? Social Media Guidance Social Media Guidance Comments The ARM Climate Research Facility (ARM) welcomes comments on our website, blog, and our social media sites such as Facebook, Flickr, and YouTube. Comments are welcome at any time; however, responses to comments will

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Modeling Unsaturated Flow and Transport Processes in Fractured Tuffs of Yucca Mountain  

E-Print Network (OSTI)

zone site-scale model, Yucca Mountain Site Characterizationsite-scale model, Yucca Mountain Project Milestone 3GLM105M,unsaturated zone, Yucca Mountain, Nevada. Water-Resources

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Bodvarsson, G.S.

2003-01-01T23:59:59.000Z

82

Analysis of pumping-induced unsaturated regions beneath a perennial river  

E-Print Network (OSTI)

the period over which water can be produced at a particulardesaturated and water could no longer be produced at a rateis unsaturated, but water can still be produced at a rate of

Su, G.W.; Jasperse, J.; Seymour, D.; Constantz, J.; Zhou, Q.

2008-01-01T23:59:59.000Z

83

Analyzing flow patterns in unsaturated fractured rock of YuccaMountain using an integrated modeling approach  

SciTech Connect

This paper presents a series of modeling investigations to characterize percolation patterns in the unsaturated zone of Yucca Mountain, Nevada, a proposed underground repository site for storing high-level radioactive waste. The investigations are conducted using a modeling approach that integrates a wide variety of moisture, pneumatic, thermal, and isotopic geochemical field data into a comprehensive three-dimensional numerical model through model calibration. This integrated modeling approach, based on a dual-continuum formulation, takes into account the coupled processes of fluid and heat flow and chemical isotopic transport in Yucca Mountain's highly heterogeneous, unsaturated fractured tuffs. In particular, the model results are examined against different types of field-measured data and used to evaluate different hydrogeological conceptual models and their effects on flow patterns in the unsaturated zone. The objective of this work to provide understanding of percolation patterns and flow behavior through the unsaturated zone, which is a crucial issue in assessing repository performance.

Wu, Yu-Shu; Lu, Guoping; Zhang, Keni; Pan, Lehua; Bodvarsson,Gudmundur S.

2003-11-03T23:59:59.000Z

84

Modeling flow and transport in unsaturated fractured rock: An evaluation of the continuum approach  

Science Conference Proceedings (OSTI)

Because the continuum approach is relatively simple and straightforward to implement, it has been commonly used in modeling flow and transport in unsaturated fractured rock. However, the usefulness of this approach can be questioned in terms of its adequacy for representing fingering flow and transport in unsaturated fractured rock. The continuum approach thus needs to be evaluated carefully by comparing simulation results with field observations directly related to unsaturated flow and transport processes. This paper reports on such an evaluation, based on a combination of model calibration and prediction, using data from an infiltration test carried out in a densely fractured rock within the unsaturated zone of Yucca Mountain, Nevada. Comparisons between experimental and modeling results show that the continuum approach may be able to capture important features of flow and transport processes observed from the test. The modeling results also show that matrix diffusion may have a significant effect on the overall transport behavior in unsaturated fractured rocks, which can be used to estimate effective fracture-matrix interface areas based on tracer transport data. While more theoretical, numerical, and experimental studies are needed to provide a conclusive evaluation, this study suggests that the continuum approach is useful for modeling flow and transport in unsaturated, densely fractured rock.

Liu, Hui-Hai; Haukwa, Charles B.; Ahlers, C. Fredrik; Bodvarsson, Gudmundur S.; Flint, Alan L.; Guertal, William B.

2002-09-01T23:59:59.000Z

85

Electrokinetic removal of uranium from contaminated, unsaturated soils  

SciTech Connect

Electrokinetic remediation of uranium-contaminated soil was studied in a series of laboratory-scale experiments in test cells with identical geometry using quartz sand at approximately 10 percent moisture content. Uranium, when present in the soil system as an anionic complex, could be migrated through unsaturated soil using electrokinetics. The distance that the uranium migrated in the test cell was dependent upon the initial molar ratio of citrate to uranium used. Over 50 percent of the uranium was recovered from the test cells using the citrate and carbonate complexing agents over of period of 15 days. Soil analyses showed that the uranium remaining in the test cells had been mobilized and ultimately would have been extracted. Uranium extraction exceeded 90 percent in an experiment that was operated for 37 days. Over 70 percent of the uranium was removed from a Hanford waste sample over a 55 day operating period. Citrate and carbonate ligand utilization ratios required for removing 50 percent of the uranium from the uranium-contaminated sand systems were approximately 230 moles ligand per mole uranium and 1320 moles ligand per mole uranium for the waste. Modifying the operating conditions to increasing the residence time of the complexants is expected to improved the utilization efficiency of the complexing agent.

Booher, W.F. [IT Corp., Albuquerque, NM (United States); Lindgren, E.R.; Brady, P.V. [Sandia National Laboratories, Albuquerque, NM (United States)

1997-01-01T23:59:59.000Z

86

The effect of fuel type in unsaturated spent fuel tests  

Science Conference Proceedings (OSTI)

Two well-characterized types of spent nuclear fuel (ATM-103 and ATM-106) were tested under simulated unsaturated conditions with simulated groundwater at 90{degree}C. The actinides present in the leachate were measured after periods of approximately 60, 120, and 275 days. The vessels were acid stripped after 120 and 275 days. Both colloidal and soluble actinide species were detected in the leachates which had pHs ranging from 4 to 7. Alpha spectroscopy studies of filtered and unfiltered leachates showed that large amounts of actinides may be bound in colloids. The uranium phases identified in the colloids were schoepite and soddyite. The actinide release behavior of the two fuels appears to be different. The ATM-106 fuel began to release actinides later than the ATM-103 fuel, but after 275 days, it had released more. The amount of americium released from the two fuels was a higher percentage of the maximum amount of americium present than was the percentage of the simultaneous amount of uranium released.

Finn, P.A.; Gong, M.; Bates, J.K.; Emery, J.W.; Hoh, J.C.

1994-04-01T23:59:59.000Z

87

Simulation of heat transfer in the unsaturated zone  

SciTech Connect

Heat transfer can play an important role in fluid flow near the emplacement site of high-level nuclear waste. The effects on far- field flow can be important in understanding net moisture fluxes above the repository zone. The convection in the unsaturated zone at the Yucca Mountain site was responsible for this movement. If this is so, then the convection could provide a mechanism for drying the rock above the repository zone and thus provide a buffer for heavy rainfall events. In addition, the convection would increase the movement of gaseous radionuclides such as {sup 14}CO{sub 2}, tritiated water vapor, and {sup 129}I (Weeks, 1987). Because of the complexity of the problem, numerical models were required to calculate gas flow and vapor transport at the site. Kipp previously modeled this problem using the code HST3D. This code represents the flow of a single-phase fluid with both heat- and mass-transfer effects included. Water density and partial pressure effects are accounted for by the virtual temperature method. In this paper, the problem was simulated using the code FEHMN, a finite-element heat- and mass-transfer code being developed for the Yucca Mountain Project. The work described in this paper was done in preparation of the upcoming problem to be formulated for the Performance Assessment Calculation Exercise. 5 refs., 9 figs., 1 tab.

Zyvoloski, G.

1990-02-01T23:59:59.000Z

88

Soil characterization methods for unsaturated low-level waste sites  

SciTech Connect

To support a license application for the disposal of low-level radioactive waste (LLW), applicants must characterize the unsaturated zone and demonstrate that waste will not migrate from the facility boundary. This document provides a strategy for developing this characterization plan. It describes principles of contaminant flow and transport, site characterization and monitoring strategies, and data management. It also discusses methods and practices that are currently used to monitor properties and conditions in the soil profile, how these properties influence water and waste migration, and why they are important to the license application. The methods part of the document is divided into sections on laboratory and field-based properties, then further subdivided into the description of methods for determining 18 physical, flow, and transport properties. Because of the availability of detailed procedures in many texts and journal articles, the reader is often directed for details to the available literature. References are made to experiments performed at the Las Cruces Trench site, New Mexico, that support LLW site characterization activities. A major contribution from the Las Cruces study is the experience gained in handling data sets for site characterization and the subsequent use of these data sets in modeling studies.

Wierenga, P.J.; Young, M.H. (Arizona Univ., Tucson, AZ (United States). Dept. of Soil and Water Science); Gee, G.W.; Kincaid, C.T. (Pacific Northwest Lab., Richland, WA (United States)); Hills, R.G. (New Mexico State Univ., Las Cruces, NM (United States). Dept. of Mechanical Engineering); Nicholson, T.J.; Cady, R.E. (Nuclear Regulatory Commission, Washington, DC (United States))

1993-01-01T23:59:59.000Z

89

Moisture content and unsaturated conditions in UMTRA project radon barriers  

SciTech Connect

A typical Uranium Mill Tailings Remedial Action (UMTRA) Project disposal facility consists of uranium tailings and other contaminated materials covered by a three to six foot thick radon barrier and six inches of filter sand, overlain by one foot of erosion-protection riprap. To comply with the proposed US Environmental Protection Agency groundwater protection standards applicable to the UMTRA Project, groundwater concentration limits of hazardous constitutents cannot be exceeded at the point of compliance, which is the downgradient limit of the waste management area. The typical radon barrier has a saturated hydraulic conductivity of approximately 1 {times} 10{sup {minus}7} centimeters per second (cm/s). Long-term seepage rates from a disposal facility with an unsaturated radon barrier may permit the concentration limits to be met at the point of compliance. Field studies were undertaken to measure the percent saturation and the relation of percent saturation to soil tension, and to predict the hydraulic conductivity as a function of percent saturation in radon barriers at three UMTRA Project disposal facilities that have been completed for up to two years. Presently typical covers have been completed at the Shiprock, Clive, and Burrell sites, and they are planned or under construction at the Ambrosia Lake, Green River, Lakeview, Mexican Hat, Slick Rock, and Tuba City sites. 2 refs., 13 figs., 1 tab.

Not Available

1988-12-01T23:59:59.000Z

90

Berkeley Lab Social Media  

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

Berkeley Lab social media guidelines Berkeley Lab social media guidelines Read this before you tweet! These guidelines, developed by Berkeley Lab's Public Affairs Department, are intended to help Lab employees who use social media in an official capacity on behalf of Berkeley Lab. Social media is a great way to engage a large audience, but there are ways to do it well-and not so well-so please read on. These guidelines are for Lab staff interested in establishing a social media presence for a department, division, or user facility. They're also for Lab staff using social media as an individual but representing the Lab in some way. For Berkeley Lab's policies on basic computing and communications, which pertain to all Lab employees, read RPM 9.01 Computing and Communication and RPM 9.02 Operational Procedures for Computing and

91

Sandia National Laboratories: News: Media Resources: Media Contacts  

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

Media Contacts & Resources Media Contacts & Resources General Inquiries Members of the News Media: (505) 844-4902 Members of the Public: (505) 844-8066 Other Contacts for the News Media Media Relations team Media Relations assists print, broadcast and online news media to obtain the latest information about Sandia. The team regularly issues news releases, many of which include high-resolution images and video clips, and interactive social media applications when possible that media may download and publish, with credit to Sandia National Laboratories. Media Relations also responds to queries and directs members of the news media to appropriate sources within the Labs for additional information. New Mexico Media Team Heather Clark is the lead media contact for Sandia/New Mexico. She

92

Social Media and Social Reality - Theory, Evidence and Validation  

Science Conference Proceedings (OSTI)

Social Media provide an exciting and novel view into social phenomena. The vast amounts of data that can be gathered from the Internet coupled with massively parallel supercomputers such as the Cray XMT open new vistas for research. Conclusions drawn from such analysis must recognize that social media are distinct from the underlying social reality. Rigorous validation is essential. This paper briefly presents results obtained from computational analysis of social media - utilizing both blog and twitter data. Validation of these results is discussed in the context of a framework of established methodologies from the social sciences. Finally, an outline for a set of supporting studies is proposed.

Reynolds, William; Weber, Marta S.; Farber, Robert M.; Corley, Courtney D.; Cowell, Andrew J.; Gregory, Michelle L.

2010-06-14T23:59:59.000Z

93

Characterization of Spatial Variability of Hydrogeologic Properties for Unsaturated Flow in the Fractured Rocks at Yucca Mountain, Nevada  

E-Print Network (OSTI)

using matrix properties , Yucca Mountain, Nevada, USGS Waterof hydrogeologic units at Yucca Mountain, Nevada, U.S.Unsaturated Zone, Yucca Mountain, Nevada . Water-Resources

Zhou, Quanlin; Bodvarsson, Gudmundur S.; Liu, Hui-Hai; Oldenburg, Curtis M.

2002-01-01T23:59:59.000Z

94

Sensitivity Analysis Of Hydrological Parameters In Modeling Flow And Transport In The Unsaturated Zone Of Yucca Mountain  

E-Print Network (OSTI)

Unsaturated Zone of Yucca Mountain Keni Zhang, Yu-Shu Wu,volcanic deposits at Yucca Mountain have been intensivelyhydraulic properties, Yucca Mountain Introduction Site

Zhang, Keni; Wu, Yu-Shu; Houseworth, James E

2006-01-01T23:59:59.000Z

95

Photonic layered media  

DOE Patents (OSTI)

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

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

2002-01-01T23:59:59.000Z

96

For The Media  

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

Images of laptop screen and keyboards Images of laptop screen and keyboards For The Media Resources for news media, including lists of contacts and their scientific areas of focus, a link to the latest news, and the free, quarterly EETD News-subscribe by email. Berkeley Lab's Environmental Energy Technologies Division (EETD) welcomes inquiries from the news media. Here are some links to research news from EETD, Berkeley Lab press releases, and the free quarterly bulletin of EETD research, EETD News-you can subscribe electronically. For information about other Divisions at the Berkeley Lab, contact the Lab's Public Affairs Department. Media Contacts For general information and media assistance. Latest News RSS The latest news of research at EETD, lectures, visits and other goings-on. Videos Lectures by and news coverage of EETD scientists.

97

Taking the long view  

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

Taking the long view Taking the long view Taking the long view on environmental stewardship A newly articulated mission for environmental stewardship at the Laboratory can be summed up in a simple phrase: clean up the past, control current operations, and create a sustainable future. March 20, 2012 Los Alamos Aerial Aerial view of a canyon in Los Alamos, New Mexico. Contact Environmental Communication & Public Outreach P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email "The future viability of the Lab hinges on demonstrating to public that we protect human health and the environment." Environmental stewardship strategy looks 50 years into the future As a way of integrating environmental protection activities into a comprehensive strategy, Kevin Smith, manager of the U.S. Department of

98

A View from Elsewhere  

E-Print Network (OSTI)

Arcadia Project Review - A View From Elsewhere Tony Hirst Department of Communication and Systems, The Open University a.j.hirst@open.ac.uk Summary This report provides an overview of activities carried out during Michaelmas Term...

Hirst, Tony

2009-01-01T23:59:59.000Z

99

Media Lab Projects List MIT Media Lab  

E-Print Network (OSTI)

develop their own innovative tools and practices for information sharing. Existing systems to inform and systems that help communities collect and share information and connect that information to action. We, as well as on systems that help us understand media ecologies, augment civic participation, and foster

Ishii, Hiroshi

100

Parameter estimation from flowing fluid temperature logging data in unsaturated fractured rock using multiphase inverse modeling  

E-Print Network (OSTI)

modeling fluid and heat flow in fractured porous media, Soc.fluid and heat flows of multiphase, multicomponent fluid mixtures in porous and fractured media.

Mukhopadhyay, S.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Social Media Security: Protecting Privacy  

Science Conference Proceedings (OSTI)

... Page 4. Social Media evolution Facebook is one of the latest in a series of Social ... Social Media evolution Facebook by Mark Zuckerberg, Eduardo ...

2012-04-02T23:59:59.000Z

102

A Conductivity Relationship for Steady-state Unsaturated Flow Processes under Optimal Flow Conditions  

SciTech Connect

Optimality principles have been used for investigating physical processes in different areas. This work attempts to apply an optimal principle (that water flow resistance is minimized on global scale) to steady-state unsaturated flow processes. Based on the calculus of variations, we show that under optimal conditions, hydraulic conductivity for steady-state unsaturated flow is proportional to a power function of the magnitude of water flux. This relationship is consistent with an intuitive expectation that for an optimal water flow system, locations where relatively large water fluxes occur should correspond to relatively small resistance (or large conductance). Similar results were also obtained for hydraulic structures in river basins and tree leaves, as reported in other studies. Consistence of this theoretical result with observed fingering-flow behavior in unsaturated soils and an existing model is also demonstrated.

Liu, H. H.

2010-09-15T23:59:59.000Z

103

Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer  

E-Print Network (OSTI)

An analytical solution is developed for three-dimensional flow towards a partially penetrating large-diameter well in an unconfined aquifer bounded below by an aquitard of finite or semi-infinite extent. The analytical solution is derived using Laplace and Hankel transforms, then inverted numerically. Existing solutions for flow in leaky unconfined aquifers neglect the unsaturated zone following an assumption of instantaneous drainage assumption due to Neuman [1972]. We extend the theory of leakage in unconfined aquifers by (1) including water flow and storage in the unsaturated zone above the water table, and (2) allowing the finite-diameter pumping well to partially penetrate the aquifer. The investigation of model-predicted results shows that leakage from an underlying aquitard leads to significant departure from the unconfined solution without leakage. The investigation of dimensionless time-drawdown relationships shows that the aquitard drawdown also depends on unsaturated zone properties and the pumping-well wellbore storage effects.

Phoolendra K. Mishra; Velimir V. Vessilinov; Kristopher L. Kuhlman

2011-11-04T23:59:59.000Z

104

Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer  

E-Print Network (OSTI)

An analytical solution is developed for three-dimensional flow towards a partially penetrating large-diameter well in an unconfined aquifer bounded below by an aquitard of finite or semi-infinite extent. The analytical solution is derived using Laplace and Hankel transforms, then inverted numerically. Existing solutions for flow in leaky unconfined aquifers neglect the unsaturated zone following an assumption of instantaneous drainage assumption due to Neuman [1972]. We extend the theory of leakage in unconfined aquifers by (1) including water flow and storage in the unsaturated zone above the water table, and (2) allowing the finite-diameter pumping well to partially penetrate the aquifer. The investigation of model-predicted results shows that leakage from an underlying aquitard leads to significant departure from the unconfined solution without leakage. The investigation of dimensionless time-drawdown relationships shows that the aquitard drawdown also depends on unsaturated zone properties and the pumping...

Mishra, Phoolendra K; Kuhlman, Kristopher L

2011-01-01T23:59:59.000Z

105

Stability analysis of a phase-field model of gravity-driven unsaturated flow through porous media  

E-Print Network (OSTI)

The formation of preferential flow paths during infiltration of water into homogeneous, dry soil is an important phenomenon whose explanation and prediction have remained elusive under the standard theories of multiphase ...

Cueto-Felgueroso, Luis

106

Resolving the Impact of Biological Processes on Water Transport in Unsaturated Porous Media Through Nuclear Magnetic Resonance Micro-Imaging  

DOE Green Energy (OSTI)

The magnetic resonance microscopy (MRM) work at Montana State University has extended the imaging of a single biofilm in a 1 mm capillary reactor to correlate T2 magnetic relaxation maps displaying biofilm structure with the corresponding velocity patterns in three dimensions in a Staphylococcus epidermidis biofilm fouled square capillary. A square duct geometry is chosen to provide correlation with existing experiments and simulations, as research bioreactors tend to be of square or rectangular cross section for optical or microelectrode access. The spatially resolved velocity data provide details on the impact of biofilm induced advection on mass transport from the bulk fluid to the biofilm and through the capillary bioreactor.

Seymour, Joseph D.

2005-06-01T23:59:59.000Z

107

MediaWiki API  

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

?xml version="1.0"?> ?xml version="1.0"?> ****************************************************************************************** ** ** ** This is an auto-generated MediaWiki API documentation page ** ** ** ** Documentation and Examples: ** ** http://www.mediawiki.org/wiki/API ** ** **

108

MediaWiki API  

Open Energy Info (EERE)

?xml version="1.0"?> ?xml version="1.0"?> ********************************************************************************************************** ** ** ** This is an auto-generated MediaWiki API documentation page ** ** ** ** Documentation and Examples: ** ** https://www.mediawiki.org/wiki/API **

109

EERE: Social Media  

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

Social Media Social Media EERE offers various ways for you to connect with us and share information on energy efficiency and renewable energy with your own social media networks. The following social media applications are available: RSS Blogs Facebook Twitter YouTube Widgets Social Bookmarking RSS RSS, or Really Simple Syndication, allows you to track EERE news and other updates in your RSS reader. See the full list of EERE's RSS feeds. Blogs Blogs allow writers to share personal insights on topics related to EERE, while readers can comment and discuss the topic covered in the blog post. You can join the conversation by reading and commenting on EERE's blogs. EERE Blog The EERE Blog includes updates on current EERE projects, interviews with energy experts, and other stories about EERE's technology offices, crosscutting initiatives, and national laboratories.

110

TECHNETIUM SORPTION MEDIA REVIEW  

SciTech Connect

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

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

2011-08-25T23:59:59.000Z

111

Prarie View RDF  

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

PRAIRIE VIEW RDF PRAIRIE VIEW RDF 2 Prairie View RDF  Located at JAAP (approx. 40 miles southwest of Chicago), 223 acres on 455 Acre Parcel  Will County Owner; Waste Management, Operator  Maximum 23-Year Life WM/Will County Methane to Energy Plant  Landfill Contract Signed w/WM in 1997 w/Gas-to- Energy Plant Clause  County Retains Gas Rights &WM Installs Gas Collection System  WM owns Methane to Energy Plant &Tax Credits 3 CONTRACT PHASE  DOE Grant Applied 6/09  County Board Approves DOE EECBG Strategy 11/09  1 Million DOE Funds to Methane to Energy Plant  Schiff Harden Hired to Negotiate Gas to Energy Contract  February 2010 County Board Authorizes Contract Execution 4 5 METHANE TO ENERGY PLANT DETAILS  Waste Management Required To

112

TOUGH2. Unsaturated Groundwater and Heat Transport Model  

DOE Green Energy (OSTI)

TOUGH2 is a new and improved version of TOUGH. TOUGH2 offers added capabilities and user features, including the flexibility to handle different fluid mixtures (water, water with tracer; water, CO2; water, air; water, air, with vapor pressure lowering and water, hydrogen), facilities for processing of geometric data (computational grids), and an internal version control system to ensure referenceability of code applications. TOUGH2 is a multi-dimensional numerical model for simulating the coupled transport of water, vapor, air, and heat in porous and fractured media. The program provides options for specifying injection or withdrawal of heat and fluids. Although primarily designed for studies of high-level nuclear waste isolation in partially saturated geological media, it should also be useful for a wider range of problems in heat and moisture transfer, and in the drying of porous materials. For example, geothermal reservoir simulation problems can be handled simply by setting the air mass function equal to zero on input. The TOUGH2 simulator was developed for problems involving strongly heat-driven flow. To describe these phenomena a multi-phase approach to fluid and heat flow is used, which fully accounts for the movement of gaseous and liquid phases, their transport of latent and sensible heat, and phase transitions between liquid and vapor. TOUGH2 takes account of fluid flow in both liquid and gaseous phases occurring under pressure, viscous, and gravity forces according to Darcy`s law. Interference between the phases is represented by means of relative permeability functions. The code handles binary, but not Knudsen, diffusion in the gas phase and capillary and phase adsorption effects for the liquid phase. Heat transport occurs by means of conduction with thermal conductivity dependent on water saturation, convection, and binary diffusion, which includes both sensible and latent heat.

Pruess, K. [Lawrence Berkeley National Lab., CA (United States)

1991-05-01T23:59:59.000Z

113

Reactive transport model for the ambient unsaturated hydrogeochemical system at Yucca mountain, Nevada  

Science Conference Proceedings (OSTI)

To assist a technical review of a potential application for a geologic repository, a reactive transport model is presented for the ambient hydrogeochemical system at Yucca Mountain (YM). The model simulates two-phase, nonisothermal, advective and diffusive ... Keywords: Yucca mountain, geochemistry, groundwater chemistry, groundwater flow and transport, hydrology, reactive transport model, unsaturated zone

Lauren Browning; William M. Murphy; Chandrika Manepally; Randall Fedors

2003-04-01T23:59:59.000Z

114

Lithium Ion Solvation: Amine and Unsaturated Hydrocarbon Solvates of Lithium Hexamethyldisilazide (LiHMDS)  

E-Print Network (OSTI)

Lithium Ion Solvation: Amine and Unsaturated Hydrocarbon Solvates of Lithium Hexamethyldisilazide, and 13C NMR spectroscopic studies of 6Li-15N labeled lithium hexamethyldisilazide ([6Li,15N]- Li ligand structure and lithium amide aggregation state is a complex and sensitive function of amine alkyl

Collum, David B.

115

Lithium Diisopropylamide-Mediated Reactions of Imines, Unsaturated Esters, Epoxides, and Aryl Carbamates  

E-Print Network (OSTI)

Lithium Diisopropylamide-Mediated Reactions of Imines, Unsaturated Esters, Epoxides, and Aryl: Several reactions mediated by lithium diisopropylamide (LDA) with added hexamethylphos- phoramide (HMPA, and selectivities of organolithium reactions.1 A preponderance of what is known about solvation of lithium ions

Collum, David B.

116

Estimation of Unsaturated Zone Traveltimes for Rainier Mesa and Shoshone Mountain, Nevada Test  

E-Print Network (OSTI)

of Las Vegas. The NTS is bordered by the Nellis Air Force Range and the Tonopah 5 #12;Test RangeEstimation of Unsaturated Zone Traveltimes for Rainier Mesa and Shoshone Mountain, Nevada Test Site for Rainier Mesa and Shoshone Mountain, Nevada Test Site, Nevada, using a source-responsive preferential

117

Dissipative particle dynamics simulation of fluid motion through an unsaturated fracture and fracture junction  

Science Conference Proceedings (OSTI)

Multiphase fluid motion in unsaturated fractures and fracture networks involves complicated fluid dynamics, which is difficult to model using grid-based continuum methods. In this paper, the application of dissipative particle dynamics (DPD), a relatively ... Keywords: Dissipative particle dynamics (DPD), Fracture, Fracture flow, Smoothed particle hydrodynamics (SPH), Weight functions

Moubin Liu; Paul Meakin; Hai Huang

2007-03-01T23:59:59.000Z

118

ParaView at NERSC  

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

ParaView ParaView ParaView Introduction ParaView is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView's batch processing capabilities. ParaView was developed to analyze extremely large datasets using distributed memory computing resources. It can be run on supercomputers to analyze datasets of terascale as well as on laptops for smaller data. Remote Visualization with ParaView ParaView is a client-server application. The ParaView client (or simply paraview) will run on your desktop while the server will run at the remote supercomputing site. The following describes the steps you will take to

119

DOE Media Advisory: Media Availability with Energy Secretary Steven Chu |  

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

Media Advisory: Media Availability with Energy Secretary Steven Media Advisory: Media Availability with Energy Secretary Steven Chu DOE Media Advisory: Media Availability with Energy Secretary Steven Chu June 12, 2012 - 12:00pm Addthis Media Contact Geoff Tyree Geoffrey.Tyree@rl.doe.gov 509-376-4171 Who: Secretary of Energy Steven Chu What: Speech to employees, followed by 15-minute media availability When: Friday, June 15, 2012, from 9:30 to 11:00 a.m. Where: Howard Amon Park, Richland, Wash. (park no later than 9:30, assemble near the "Fingernail" stage, right side, look for mult-box) Why: To shoot photos and video of the Energy Secretary speaking to Hanford Site employees and ask the Secretary questions during a media availability following his meeting with employees Audio/Video: Video of the Energy Secretary and Hanford Site employees

120

DOE Media Advisory: Media Availability with Energy Secretary Steven Chu |  

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

DOE Media Advisory: Media Availability with Energy Secretary Steven DOE Media Advisory: Media Availability with Energy Secretary Steven Chu DOE Media Advisory: Media Availability with Energy Secretary Steven Chu June 12, 2012 - 12:00pm Addthis Media Contact Geoff Tyree Geoffrey.Tyree@rl.doe.gov 509-376-4171 Who: Secretary of Energy Steven Chu What: Speech to employees, followed by 15-minute media availability When: Friday, June 15, 2012, from 9:30 to 11:00 a.m. Where: Howard Amon Park, Richland, Wash. (park no later than 9:30, assemble near the "Fingernail" stage, right side, look for mult-box) Why: To shoot photos and video of the Energy Secretary speaking to Hanford Site employees and ask the Secretary questions during a media availability following his meeting with employees Audio/Video: Video of the Energy Secretary and Hanford Site employees

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Media Contacts | Argonne National Laboratory  

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

Media Contacts Media Contacts Steve McGregor Argonne National Laboratory Stephen McGregor is manager of media relations for Argonne. Contact him at (630) 252-5580 or media@anl.gov. Joseph Bernstein Argonne National Laboratory Joseph Bernstein is the communications lead for Physical Sciences and Engineering. Contact him at (630) 252-7268 or media@anl.gov. Angela Hardin Argonne National Laboratory Angela Hardin is a media relations specialist who covers transportation, energy research and tech transfer at the lab. Contact her at (630) 252-5501 or media@anl.gov. Jared Sagoff Argonne National Laboratory Jared Sagoff is a media relations specialist who covers national security, environment and life sciences, computing and fundamental sciences research. Contact him at (630) 252-5549 or media@anl.gov.

122

Stereoscopic optical viewing system  

DOE Patents (OSTI)

An improved optical system which provides the operator with a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

Tallman, C.S.

1986-05-02T23:59:59.000Z

123

SRS - Media Contacts  

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

News Releases News Releases Video Releases Fact Sheets Photo Gallery Speakers Media Contacts SRS Home Media Contacts For information about the Department of Energy-Savannah River Operations contact: Office of External Affairs, 803-952-7697 Savannah River Operations Office, U.S. Dept. of Energy, P.O. Box A, Aiken, SC 29802 Website: http://sro.srs.gov Department of Energy For information about the Savannah River National Laboratory contact: Will Callicott, Manager, SRNL Executive Communications, 803-725-3786 Angeline French, 803-725-2854 Website: http://srnl.doe.gov Savannah River National Laboratory For information about Savannah River Nuclear Solutions, LLC, contact: Robert C. (Clif) Webb, Vice President, Corporate Communications, 803-952-9810 Barbara Smoak, Manager, Public Relations & Media Communications,

124

On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils  

E-Print Network (OSTI)

To provide a complete local monitoring of the state of an unsaturated soil sample during triaxial testing, a local water content measurement device was adapted to a triaxial device comprising the measurement of local displacements (Hall effect transducers) and suction (High capacity transducer). Water content was locally monitored by means of a resistivity probe. The water content/resistivity calibration curves of an intact natural unsaturated loess from Northern France extracted by block sampling at two depths (1 and 3.3 m) were carefully determined, showing good accuracy and repeatability. The validity of two models giving the resistivity of unsaturated soils with respect to their water content was examined.

Munoz-Castelblanco, Jos; Pereira, Jean-Michel; Cui, Yu-Jun

2013-01-01T23:59:59.000Z

125

Media Room | National Nuclear Security Administration  

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

Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Media Room Home > Media Room Media Room NNSA's Office of...

126

Dynamic View Management System for Query Prediction to View Materialization  

Science Conference Proceedings (OSTI)

On-Line Analytical Processing OLAP systems based on data warehouses are the main systems for managerial decision making and must have a quick response time. Several algorithms have been presented to select the proper set of data and elicit suitable structured ... Keywords: Data Warehousing, Dynamic View Materialization, OLAP, Probabilistic Reasoning Approaches, View Prediction, View Selection

Negin Daneshpour; Ahmad Abdollahzadeh Barfourosh

2011-04-01T23:59:59.000Z

127

An overview of instability and fingering during immiscible fluid flow in porous and fractured media  

SciTech Connect

Wetting front instability is an important phenomenon affecting fluid flow and contaminant transport in unsaturated soils and rocks. It causes the development of fingers which travel faster than would a uniform front and thus bypass much of the medium. Water saturation and solute concentration in such fingers tend to be higher than in the surrounding medium. During infiltration, fingering may cause unexpectedly rapid arrival of water and solute at the water-table. This notwithstanding, most models of subsurface flow and transport ignore instability and fingering. In this report, we survey the literature to assess the extent to which this may or may not be justified. Our overview covers experiments, theoretical studies, and computer simulations of instability and fingering during immiscible two-phase flow and transport, with emphasis on infiltration into soils and fractured rocks. Our description of instability in an ideal fracture (Hele-Shaw cell) includes an extension of existing theory to fractures and interfaces having arbitrary orientations in space. Our discussion of instability in porous media includes a slight but important correction of existing theory for the case of an inclined interface. We conclude by outlining some potential directions for future research. Among these, we single out the effect of soil and rock heterogeneities on instability and preferential flow as meriting special attention in the context of nuclear waste storage in unsaturated media.

Chen, G.; Neuman, S.P. [Univ. of Arizona, Tucson, AZ (United States). Dept. of Hydrology and Water Resources; Taniguchi, M. [Nara Univ. of Education (Japan). Dept. of Earth Sciences

1995-04-01T23:59:59.000Z

128

Shanzhai Online Videos in China: Governance and Resistance through Media  

E-Print Network (OSTI)

This dissertation explores the production, circulation, and regulation of Shanzhai online videos in order to understand how people's everyday lives are governed and how the governing power is resisted through the media system in contemporary China. This research is situated in the specific socio-cultural and historical context where Information Communication Technologies (ICTs) have proliferated among various social strata, where the media are both the propagandistic mouthpiece and a profit-oriented industry, and where people are encouraged to pursue their life goals under a neoliberal rationality that is pervasive in media. I use a Foucauldian framework to examine the power modalities and power relationships manifested in the Shanzhai practices. I argue that both disciplinary power and the power of governmentality are found in this cultural practice. It is through the production, circulation and regulation of Shanzhai videos that power is exercised on different parties involved in this process as governance and resistance. This power relationship, I argue, is explicated through a ritualistic view of the reality presented in the trans-media, trans-genre narratives that people internalize in order to develop specific ways of using media to pursue their life goals. Meanwhile, people also employ various strategies to negotiate for resources to achieve these goals. In these negotiations, power relationships manifested themselves as their actions upon each other. Ordinary people are disciplined through patterned uses of media to live their lives and governed by a neoliberal mentality to pursue their life projects on the Internet. However, there is more than one set of discourses with a claim to the "truth" about Shanzhai in Chinese media. Thus, people are also empowered to take advantage of this discrepancy to gain symbolic as well as material favors. This study examined a nuanced and dialectic power relationship in contemporary Chinese society. First, it is found that people are both empowered and subjected to the ways they use media to pursue personal goals. Second, the resistance in the Shanzhai practices not only brought them symbolic power as much previous literature suggests, but also material resources such as media access and sponsorship. Last, the holistic view of the media system helps us situate Shanzhai online videos in the convergent media environment and draw a better picture of the web of power relationships.

Cui, Xi

2011-08-01T23:59:59.000Z

129

News & Media - ORNL Neutron Sciences  

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

Media banner News & Media New SNS Power Record Achieved: 1.4 MW Xiaoguang Hao Click the image to download the video. Examples of Nondestructive Examination Using Neutron Imaging...

130

The View from HQ  

National Nuclear Security Administration (NNSA)

A publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs A publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs NA-ASC-500-07-Issue 3 May 2007 The View from HQ by Dimitri Kusnezov I have been spending much of my time these days thinking about science, technology and engineering and the role of the laboratories and how that will be reflected in the Complex of the future. This is on my mind for two reasons: one is my responsibility to

131

Informative Views and Active Recognition  

E-Print Network (OSTI)

Informative Views and Active Recognition Tal Arbel, Frank P. Ferrie, and Peter Whaite TR-CIM-94-7897 Email: cim@cim.mcgill.ca #12;Informative Views and Active Recognition Tal Arbel, Frank P. Ferrie

Dudek, Gregory

132

Preliminary 3-D site-scale studies of radioactive colloid transort in the unsaturated zone at Yucca Mountain, Nevada  

E-Print Network (OSTI)

into drifts at Yucca Mountain. J. Contam. Hydrol. , 38(1pneumatic response at Yucca Mountain, Nevada. J. Contam.unsaturated zone model of Yucca Mountain, Nevada. J. Contam.

Moridis, G.J.; Hu, Q.; Wu, Y.-S.; Bodvarsson, G.S.

2001-01-01T23:59:59.000Z

133

Lipid Oxidation PathwaysChapter 3 Competitive Oxidation between a-Tocopherol and Unsaturated Fatty Acids at Thermoxidation Conditions  

Science Conference Proceedings (OSTI)

Lipid Oxidation Pathways Chapter 3 Competitive Oxidation between a-Tocopherol and Unsaturated Fatty Acids at Thermoxidation Conditions Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry Downloadable pd

134

Models for Unsaturated Hydraulic Conductivity Based on Truncated Lognormal Pore-size Distributions  

E-Print Network (OSTI)

We develop a closed-form three-parameter model for unsaturated hydraulic conductivity associated with a three-parameter lognormal model of moisture retention, which is based on lognormal grainsize distribution. The derivation of the model is made possible by a slight modification to the theory of Mualem. We extend the three-parameter lognormal distribution to a four-parameter model that also truncates the pore size distribution at a minimum pore radius. We then develop the corresponding four-parameter model for moisture retention and the associated closed-form expression for unsaturated hydraulic conductivity. The four-parameter model is fitted to experimental data, similar to the models of Kosugi and van Genuchten. The proposed four-parameter model retains the physical basis of Kosugi's model, while improving fit to observed data especially when simultaneously fitting pressure-saturation and pressure-conductivity data.

Malama, Bwalya

2013-01-01T23:59:59.000Z

135

Integrating argumentation technologies and context-based search for intelligent processing of citizens' opinion in social media  

Science Conference Proceedings (OSTI)

Nowadays, governments are adopting Web 2.0 technologies for interacting with citizens, empowering them to share their views, react to issues of their concern and form opinion. In particular, social media play an important role in this context, due to ... Keywords: e-governance, government 2.0, intelligent tools, participation, social media

Carlos Chesevar; Ana Maguitman; Elsa Estevez; Ramn Brena

2012-10-01T23:59:59.000Z

136

Protective laser beam viewing device  

SciTech Connect

A protective laser beam viewing system or device including a camera selectively sensitive to laser light wavelengths and a viewing screen receiving images from the laser sensitive camera. According to a preferred embodiment of the invention, the camera is worn on the head of the user or incorporated into a goggle-type viewing display so that it is always aimed at the area of viewing interest to the user and the viewing screen is incorporated into a video display worn as goggles over the eyes of the user.

Neil, George R.; Jordan, Kevin Carl

2012-12-18T23:59:59.000Z

137

Optimality and Conductivity for Water Flow: From Landscapes, to Unsaturated Soils, to Plant Leaves  

Science Conference Proceedings (OSTI)

Optimality principles have been widely used in many areas. Based on an optimality principle that any flow field will tend toward a minimum in the energy dissipation rate, this work shows that there exists a unified form of conductivity relationship for three different flow systems: landscapes, unsaturated soils and plant leaves. The conductivity, the ratio of water flux to energy gradient, is a power function of water flux although the power value is system dependent. This relationship indicates that to minimize energy dissipation rate for a whole system, water flow has a small resistance (or a large conductivity) at a location of large water flux. Empirical evidence supports validity of the relationship for landscape and unsaturated soils (under gravity dominated conditions). Numerical simulation results also show that the relationship can capture the key features of hydraulic structure for a plant leaf, although more studies are needed to further confirm its validity. Especially, it is of interest that according to this relationship, hydraulic conductivity for gravity-dominated unsaturated flow, unlike that defined in the classic theories, depends on not only capillary pressure (or saturation), but also the water flux. Use of the optimality principle allows for determining useful results that are applicable to a broad range of areas involving highly non-linear processes and may not be possible to obtain from classic theories describing water flow processes.

Liu, H.H.

2012-02-23T23:59:59.000Z

138

Most Viewed Documents - Geosciences | OSTI, US Dept of Energy, Office of  

Office of Scientific and Technical Information (OSTI)

Most Viewed Documents - Geosciences Most Viewed Documents - Geosciences Temperature Profiles and Hydrologic Implications from the Nevada Test Site David Gillespie (2005) 3-D full waveform inversion of seismic data; Part I. Theory Lee, Ki Ha (2003) Drilling and coring methods that minimize the disturbance of cuttings, core, and rock formation in the unsaturated zone, Yucca Mountain, Nevada Hammermeister, D.P.; Blout, D.O.; McDaniel, J.C. (1985) CO{sub 2}-H{sub 2}O mixtures in the geologic sequestration of CO{sub 2}. I. Assessment and calculation of mutual solubilities from 12 to 100 degrees C and up to 600 bar Spycher, Nicolas; Pruess, Karsten; Ennis-King, Jonathan (2002) ADVANCED CHARACTERIZATION OF FRACTURED RESERVOIRS IN CARBONATE ROCKS: THE MICHIGAN BASIN James R. Wood; William B. Harrison (2002)

139

Energy Media Advisories  

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

media-advisories-archive 1000 Independence Ave. SW media-advisories-archive 1000 Independence Ave. SW Washington DC 20585 202-586-5000 en In Charleston, U.S. Energy Department, Clemson Officials to Celebrate First-of-its-Kind Wind Testing Facility http://energy.gov/articles/charleston-us-energy-department-clemson-officials-celebrate-first-its-kind-wind-testing In Charleston, U.S. Energy Department, Clemson Officials to Celebrate First-of-its-Kind Wind Testing Facility

140

The View from HQ  

National Nuclear Security Administration (NNSA)

  NA-ASC-500-07 Issue 2 January 2007 The View from HQ Sitting in airports and planes is risky beyond the obvious dangers now in the news. Uninter- rupted time to think may lead to new ideas. Instinct instructs us that when we hear Wash- ington has some new ideas, the result must be bad. After all, ideas suggest change, which is inherently disruptive. Today the notion of predictivity is on my mind as I am leaving the V&V 2007 meeting in Los Alamos. Predictivity is on my short list of overused, ill-defined words. Washington main- tains a full lexicon of such words-a fair number of which find their way into common usage.

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

False color viewing device  

DOE Patents (OSTI)

This invention consists of a viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching, the user`s eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, J.W.

1991-05-08T23:59:59.000Z

142

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

1992-01-01T23:59:59.000Z

143

False color viewing device  

DOE Patents (OSTI)

A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage. 7 figs.

Kronberg, J.W.

1992-10-20T23:59:59.000Z

144

ORISE: Media Analysis and Monitoring  

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

Media Analysis and Monitoring Media Analysis and Monitoring The Oak Ridge Institute for Science and Education (ORISE) uses comprehensive media analysis and monitoring tools to define media interest and the public's perceptions of a particular issue. ORISE's media analysis process includes analyzing news reports combined with media outlet data, such as circulation, readership, number of viewers and listeners; recording frequency of publication and collecting quotes from subject matter experts. To improve the overall consistency and efficiency of the process, ORISE employs tools, such as AutoINFORM (Auto Immunization News FOR Managers), that enable the monitoring of social media, email and other Web content. On average, ORISE tracks, codes and analyzes more than 17,000 articles daily, monitoring 1,400+ news resources and 1,000+ blogs. Annually, the

145

Social Media Records and You  

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

Managing Social Media Records Managing Social Media Records Managing Social Media Records What is Social Media? Your Responsibilities As a DOE federal or contractor Employee your basic records obligations are to: Follow the Lifecycle Records Management Lifecycle Create or receive official records needed to do business Social Media, Web 2.0, and Gov 2 0 bring together technology obligations are to: Planning for the use of Social Media should address records management requirements. Create or Capture records A RECORD is a RECORD is a RECORD, no matter what is used to create or receive it. Ensure that your records are maintained so that they are accessible and easy to retrieve. 2.0 bring together technology, social interaction, and content creation (from USA.gov). DOE uses social media both

146

Social Media | Department of Energy  

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

Energy.gov » Web Policies » Social Media Energy.gov » Web Policies » Social Media Social Media The Department of Energy is committed to expanding the conversation on energy issues and upholding open government principles of transparency, participation and collaboration. One of the key ways we seek to accomplish this is through the use of social media. "Social media" is a broad term for a wide spectrum of interactive and user-driven content technologies, including social networks like Twitter, Facebook, YouTube and Instagram. Like many government agencies, the Department is exploring how best to use social media to accomplish our mission, engage the public in discussion and include the public in the governing process. The Office of Digital Strategy and Communications (Digital Office) in the Office of Public Affairs leads the Department's

147

ORISE: Media Analysis and Monitoring  

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

has been disseminated, ORISE also evaluates the outcomes of media efforts and then benchmarks for effectiveness. Using these tools, ORISE has partnered with the Centers for...

148

A Mountain-Scale Thermal Hydrologic Model for Simulating Fluid Flow and Heat Transfer in Unsaturated Fractured Rock  

E-Print Network (OSTI)

for Modeling Fluid and Heat Flow in Fractured Porous Media,with fluid and heat flow in fractured porous media arefluid and heat flow in porous media, heat pipe, reservoir simulation, fractured

Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, Gudmundur S.

2005-01-01T23:59:59.000Z

149

Informative Views and Sequential Recognition  

E-Print Network (OSTI)

Informative Views and Sequential Recognition Tal Arbel and Frank P. Ferrie TR-CIM-95-10 Nov. 1995 3 Telephone: 514 398-6319 Telex: 05 268510 FAX: 514 398-7348 Email: cim@cim.mcgill.ca #12;Informative Views

Dudek, Gregory

150

Method and apparatus for measuring coupled flow, transport, and reaction processes under liquid unsaturated flow conditions  

DOE Patents (OSTI)

The present invention is a method and apparatus for measuring coupled flow, transport and reaction processes under liquid unsaturated flow conditions. The method and apparatus of the present invention permit distinguishing individual precipitation events and their effect on dissolution behavior isolated to the specific event. The present invention is especially useful for dynamically measuring hydraulic parameters when a chemical reaction occurs between a particulate material and either liquid or gas (e.g. air) or both, causing precipitation that changes the pore structure of the test material.

McGrail, Bernard P. (Pasco, WA); Martin, Paul F. (Richland, WA); Lindenmeier, Clark W. (Richland, WA)

1999-01-01T23:59:59.000Z

151

Evolution of the conceptual model of unsaturated zone hydrology at yucca mountain, nevada  

SciTech Connect

Yucca Mountain is an arid site proposed for consideration as the United States' first underground high-level radioactive waste repository. Low rainfall (approximately 170 mm/yr) and a thick unsaturated zone (500-1000 m) are important physical attributes of the site because the quantity of water likely to reach the waste and the paths and rates of movement of the water to the saturated zone under future climates would be major factors in controlling the concentrations and times of arrival of radionuclides at the surrounding accessible environment. The framework for understanding the hydrologic processes that occur at this site and that control how quickly water will penetrate through the unsaturated zone to the water table has evolved during the past 15 yr. Early conceptual models assumed that very small volumes of water infiltrated into the bedrock (0.5-4.5 mm/yr, or 2-3 percent of rainfall), that much of the infiltrated water flowed laterally within the upper nonwelded units because o f capillary barrier effects, and that the remaining water flowed down faults with a small amount flowing through the matrix of the lower welded, fractured rocks. It was believed that the matrix had to be saturated for fractures to show. However, accumulating evidence indicated that infiltration rates were higher than initially estimated, such as infiltration modeling based on neutron borehole data, bomb-pulse isotopes deep in the mountain, perched water analyses and thermal analyses. Mechanisms supporting lateral diversion did not apply at these higher fluxes, and the flux calculated in the lower welded unit exceeded the conductivity of the matrix, implying vertical flow of water into the high permeability fractures of the potential repository host rock, and disequilibrium between matrix and fracture water potentials. The development of numerical modeling methods and parameter values evolved concurrently with the conceptual model in order to account for the observed field data, particularly fracture flow deep in the unsaturated zone. This paper presents the history of the evolution of conceptual models of hydrology and numerical models of unsaturated zone flow at Yucca Mountain, Nevada (Flint, A.L., Flint, L.E., Kwicklis, E.M., Bodvarsson, G.S., Fabryka-Martin, J.M., 2001. Hydrology of Yucca Mountain. Reviews of Geophysics in press). This retrospective is the basis for recommendations for optimizing the efficiency with which a viable and robust conceptual model can be developed for a complex site. (C) 2001 Elsevier Science B.V. All rights reserved. [References: 87

Flint, A. L.; Flint, L. E.; Bodvarsson, G. S.; Kwicklis, E. M.; Fabryka-Martin, J.

2001-02-01T23:59:59.000Z

152

Bibliometrics for Internet Media: Applying the h-Index to YouTube  

E-Print Network (OSTI)

The h-index can be a useful metric for evaluating a person's output of Internet media. Here we advocate and demonstrate adaption of the h-index and the g-index to the top video content creators on YouTube. The h-index for Internet video media is based on videos and their view counts. The index h is defined as the number of videos with >= h*10^5 views. The index g is defined as the number of videos with >= g*10^5 views on average. When compared to a video creator's total view count, the h-index and g-index better capture both productivity and impact in a single metric.

Hovden, Robert

2013-01-01T23:59:59.000Z

153

Finite element methods for unsaturated porous solids and their application to dam engineering problems  

Science Conference Proceedings (OSTI)

This work presents a finite element formulation of equations proposed in a companion paper to describe the hyperelastic response of three-phase porous media. Attention is paid to the development of consistent tangents required by the Newton-Raphson procedure ... Keywords: Concrete dams, Hydro-mechanical coupling, Multiphase porous media, Rock mass permeability, Unilateral constraints

C. Callari; A. Abati

2009-04-01T23:59:59.000Z

154

Unsaturated flow and transport through fractured rock related to high-level waste repositories; Final report, Phase 3  

SciTech Connect

Research results are summarized for a US Nuclear Regulatory Commission contract with the University of Arizona focusing on field and laboratory methods for characterizing unsaturated fluid flow and solute transport related to high-level radioactive waste repositories. Characterization activities are presented for the Apache Leap Tuff field site. The field site is located in unsaturated, fractured tuff in central Arizona. Hydraulic, pneumatic, and thermal characteristics of the tuff are summarized, along with methodologies employed to monitor and sample hydrologic and geochemical processes at the field site. Thermohydrologic experiments are reported which provide laboratory and field data related to the effects conditions and flow and transport in unsaturated, fractured rock. 29 refs., 17 figs., 21 tabs.

Evans, D.D.; Rasmussen, T.C. [Arizona Univ., Tucson, AZ (USA). Dept. of Hydrology and Water Resources

1991-01-01T23:59:59.000Z

155

Particle Deposition in Granular Media  

Science Conference Proceedings (OSTI)

Objective is to understand aerosol deposition from gas streams flowing through granular media; this is important to the design of granular filtration systems. The following investigations were carried out: transient behavior of granular filtration of aerosols, and stochastic simulation of aerosol deposition in granular media.

Tien, C.

1992-01-01T23:59:59.000Z

156

MEP: a media event platform  

Science Conference Proceedings (OSTI)

Popular media events of today are likely to attract a big, live audience. Being part of a huge cricket audience, for example, knowing that the event is broadcast to perhaps millions of people, is a truly arousing experience. But the size of the audience ... Keywords: events, media platform, mobile commerce, mobility

Daniel Olsson; Andreas Nilsson

2002-06-01T23:59:59.000Z

157

Berkeley Lab Social Media  

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

can get your Berkeley Lab any way you like it. Many of our user can get your Berkeley Lab any way you like it. Many of our user facilities, scientific divisions, and other groups want to connect with you on Facebook, Twitter, YouTube, and other sites. Join the conversation! Berkeley Lab's Primary Social Media Channels FB Twitter Google+ youtube Flickr Other Berkeley Lab Facebook Pages fb icon Joint Genome Institute (JGI) fb icon Energy Sciences Network fb icon Environmental Energy Technologies Division fb icon Advanced Light Source (ALS) National Energy Research Scientific Computing (NERSC) Joint Bio Energy Institute (JBEI) Computing Sciences LBNL Research Library Life Sciences Division Earth Sciences Division Berkeley Lab Recruiters Information Technology Division Engineering Division Home Energy Saver Home Energy Saver Pro

158

Combustion in porous media  

DOE Green Energy (OSTI)

A 2.8-liter tube-shaped combustion vessel was constructed to study flame propagation and quenching in porous media. For this experiment, hydrogen-air flames propagating horizontally into abed of 6 mm diameter glass beads were studied. Measurements of pressure and temperature along the length of the tube were used to observe flame propagation of quenching. The critical hydrogen concentration for Hz-air mixtures was found to be 11.5%, corresponding to a critical Peclet number of Pe* = 37. This value is substantially less than the value of Pe* = 65 quoted in the literature, for example Babkin et al. (1991). It is hypothesized that buoyancy and a dependence of Pe on the Lewis number account for the discrepancy between these two results.

Dillon, J. [California Inst. of Technology, CA (US)

1999-09-01T23:59:59.000Z

159

Story Tips for Media | ORNL  

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

2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 Audio Spots Honors and Awards Videos ORNL Review Magazine ORNL Reporter DOE Pulse Media Contacts Media Mentions RSS Feeds News Home | ORNL | News | Story Tips Story Tips ORNL's Office of Communications works with national, regional, and local media outlets on news stories about the laboratory. For more information on ORNL and its research and development activities, please refer to one of our Media Contacts. If you have a general media-related question or comment, you can send it to news@ornl.gov. 1-10 of 10 Results Highways - The road to efficiency January 07, 2014 - City Traffic Engineer John Van Winkle, who has positioned Chattanooga as a national leader in intelligent transportation and communication technologies, is headlining a seminar scheduled at Oak

160

Export.gov - Social Media  

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

Social Media Social Media Print | E-mail Page Export.gov Buttons Share Export.gov with Others Visit our Buttons page to learn how you can share our button: Social Media Social Media and Web 2.0 are umbrella terms that define the various activities that integrate technology, social interaction, and content creation. Export.gov has begun working with social media tools to present information to you in ways that are easier for you to use. Follow Export.gov on Twitter FaceBook LinkedIn Subscribe to Export.gov through: E-Mail Updates RSS Feeds Follow our Partners: BusinessUSA.gov BusinessUSA.gov on Twitter Department of Commerce (DOC) Acting Secretary Dr. Rebecca Blank on Twitter Department of Commerce on Twitter International Trade Administration, DOC Trade.gov on Twitter Trade.gov on FaceBook

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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161

Neutrino oscillations in nuclear media  

E-Print Network (OSTI)

On basis of effective interactions of charged lepton and hadron currents, we obtain an effective interacting Hamiltonian of neutrinos in nuclear media up to the leading order. Using this effective Hamiltonian, we study neutrino mixing and oscillations in nuclear media and strong magnetic fields. We compute neutrino mixing angle and mass squared difference, and find the pattern of vacuum neutrino oscillations is modified in magnetized nuclear media. Comparing with the vacuum neutrino oscillation, we find that for high-energy neutrinos, neutrino oscillations are suppressed in the presence of nuclear media. In the general case of neutral nuclear media with the presence of electrons, we calculate the mixing angle and mass squared difference, and discuss the resonance and level-crossing in neutrino oscillations.

Iman Motie; She-Sheng Xue

2011-04-14T23:59:59.000Z

162

MODELING U TRANSPORT IN THE UNSATURATED ZONE AT PENA BLANCA, MEXICO  

SciTech Connect

We present a quantitative model to describe transport of radionuclides underground. Applicable to unsaturated (vadose) as well as saturated (phreatic) layers, the model provides constraints on the in-situ migratory behavior of radioisotopes in dissolved and colloidal pools of a groundwater system. It shows, for examples, that uranium in water percolating through the vadose zone will have its concentration and ratio {sup 234}U/{sup 238}U linearly correlated under the ideal condition of a constant removal of the two U isotopes from vadose-zone solids. The intercept and slope of the linearity serve to constrain removal rates of the two uranium isotopes from solids to the solution through dissolution and alpha recoil. The model also allows estimation of the fluid transit time in the vadose zone. At Pena Blanca, the uneven distribution of rainfall between winter (wet) and summer (dry) results in a conspicuous seasonal variability in uranium removal rate, hence dissolved uranium signals, within the unsaturated zone. Our data indicate a much higher uranium dissolution rate during the dry season than during the wet season, possibly reflecting a condition of increased oxygenation in the zone during the dry period.

T.L. Ku; S. Luo; M. Murrell; S. Goldstein

2005-07-01T23:59:59.000Z

163

Nuclear-waste isolation in the unsaturated zone of arid regions  

Science Conference Proceedings (OSTI)

The vadose zone in arid regions is considered as a possible environment for geologic isolation of nuclear waste. There are several topographic and lithologic combinations in the vadose zone of arid regions that may lend themselves to waste isolation considerations. In some cases, topographic highs such as mesas and interbasin ranges - comprised of several rock types, may contain essentially dry or partially saturated conditions favorable for isolation. The adjacent basins, especially in the far western and southwestern US, may have no surface or subsurface hydrologic connections with systems ultimately leading to the ocean. Some rock types may have the favorable characteristics of very low permeability and contain appropriate minerals for the strong chemical retardation of radionuclides. Environments exhibiting these hydrologic and geochemical attributes are the areas underlain by tuffaceous rocks, relatively common in the Basin and Range geomorphic province. Adjacent valley areas, where tuffaceous debris makes up a significant component of valley fill alluvium, may also contain thick zones of unsaturated material, and as such also lend themselves to strong consideration as respository environments. This paper summarizes the aspects of nuclear waste isolation in unsaturated regimes in alluvial-filled valleys and tuffaceous rocks of the Basin and Range province.

Wollenberg, H.A.; Wang, J.S.Y.; Korbin, G.

1982-05-01T23:59:59.000Z

164

Validation studies for assessing unsaturated flow and transport through fractured rock  

SciTech Connect

*The objectives of this contract are to examine hypotheses and conceptual models concerning unsaturated flow and transport through heterogeneous fractured rock and to design and execute confirmatory field and laboratory experiments to test these hypotheses and conceptual models. Important new information is presented such as the application and evaluation of procedures for estimating hydraulic, pneumatic, and solute transport coefficients for a range of thermal regimes. A field heater experiment was designed that focused on identifying the suitability of existing monitoring equipment to obtain required data. A reliable method was developed for conducting and interpreting tests for air permeability using a straddle-packer arrangement. Detailed studies of fracture flow from Queen Creek into the Magina Copper Company ore haulage tunnel have been initiated. These studies will provide data on travel time for transport of water and solute in unsaturated tuff. The collection of rainfall runoff, and infiltration data at two small watersheds at the Apache Leap Tuff Site enabled us to evaluate the quantity and rate of water infiltrating into the subsurface via either fractures or matrix. Characterization methods for hydraulic parameters relevant to Weigh-level waste transport, including fracture apertures, transmissivity, matrix porosity, and fracture wetting front propagation velocities, were developed.

Bassett, R.L.; Neuman, S.P.; Rasmussen, T.C.; Guzman, A.; Davidson, G.R.; Lohrstorfer, C.F. [Arizona Univ., Tucson, AZ (United States). Dept. of Hydrology and Water Resources

1994-08-01T23:59:59.000Z

165

System for supplying blasting media to a media blasting system  

SciTech Connect

This patent describes a pressure pot system for supplying blasting media under pressure to a pressurized blasting conduit for feeding blasting media to one or more blasting guns, the system including a media storage means and a first and second pressure chambers with means for pressurizing and exhausting the first and second chambers, the media storage means being stacked above the pressure chambers with the first pressure chamber stacked above the second pressure chamber; first and second media valve means for providing communication between the storage means and the first pressure chamber and between the pressure chambers, respectively; air valve means for controlling the air pressurizing and exhausting of the first and second pressure chambers, the improvement comprising: means for opening and closing the first and second media valve means and the air valve means, the first, second and air valve means being offset from each other in both vertical and horizontal dimensions; push rods extending vertically upward from the valve means and spaced one from the other for actuating the valve means to open and close the same; an overhead cam shaft means mounted above the push rods and having a plurality of spaced cams, each of the cams being aligned and operatively associated with one of the push rods for actuating the push rods and thereby the valve means to control the opening and closing of the first and second media valve means and the air valve means; and actuating means for actuating the cam shaft means.

Van Kuiken, L.L. Jr.

1988-10-25T23:59:59.000Z

166

Social Media's New Role in Emergency Management  

Science Conference Proceedings (OSTI)

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

Ethan Huffman; Sara Prentice

2008-03-01T23:59:59.000Z

167

Chisolm View | Open Energy Information  

Open Energy Info (EERE)

Chisolm View Chisolm View Jump to: navigation, search Name Chisolm View Facility Chisolm View Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner GE Energy Financial Service / Enel Green Power North America Developer TradeWind Energy Energy Purchaser Alabama Power Company Location Hunter OK Coordinates 36.59527057°, -97.54501104° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.59527057,"lon":-97.54501104,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

168

Evolving Views of Pectin Biosynthesis  

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

BIOSYNTHESIS DURING PRIMARY AND SECONDARY WALL FORMATION Multiple lines of evidence have led to a new view of primary wall architecture and the role of pectin therein. Dick-P...

169

Risk View Software Functional Specification  

Science Conference Proceedings (OSTI)

This report defines the functional requirements for a new Risk View software product to be developed as part of the Electric Power Research Institute's (EPRI's) Operations and Maintenance Excellence (OMX) initiative. plant information sources.

2010-09-30T23:59:59.000Z

170

1,4-Addition of Lithium Diisopropylamide to Unsaturated Esters: Role of Rate-Limiting Deaggregation, Autocatalysis,  

E-Print Network (OSTI)

1,4-Addition of Lithium Diisopropylamide to Unsaturated Esters: Role of Rate-Limiting Deaggregation, Autocatalysis, Lithium Chloride Catalysis, and Other Mixed Aggregation Effects Yun Ma, Alexander C. Hoepker.edu Abstract: Lithium diisopropylamide (LDA) in tetrahydrofuran at -78 °C undergoes 1,4-addition

Collum, David B.

171

Explicit analytical solutions for one-dimensional steady state flow in layered, heterogeneous unsaturated soils under random  

E-Print Network (OSTI)

to the statistics of the unsaturated hydraulic conductivity and the effective water content. These first soils under random boundary conditions, Water Resour. Res., 43, W09413, doi:10.1029/2005WR004795. 1 in the literature [e.g., Warrick, 1974; Srivastava and Yeh, 1991; Tracy, 1995; Basha, 1999]. In these solutions

Lu, Zhiming

172

Comparisons of diffusive and advective fluxes of gas phase volatile organic compounds (VOCs) in unsaturated zones under natural conditions  

E-Print Network (OSTI)

is traditionally treated as the dominant mechanism of gas transport in unsaturated zones under natural conditions of the gas pressure are less than 5% [32], which is satisfied in natural attenuation. At the ground surface contri- bution of the advective flux is a more important concern in natural attenuation. According to Fig

Zhan, Hongbin

173

Neutrinos interacting with Polarizable Media  

E-Print Network (OSTI)

We study Cherenkov and transition radiation of neutral spin 1/2 particles which carry magnetic moments or electric dipole moments. In particular, we estimate the radiation caused by the solar neutrino flux in dielectric media.

W. Grimus; H. Neufeld

1994-10-20T23:59:59.000Z

174

Signal Transmission in Passive Media  

E-Print Network (OSTI)

Under rather general assumptions, and in a relatively simple and straightforward manner, it is shown that the characteristics of signals which travel through homogeneous, as well as inhomogeneous, passive media have the principal features usually associated with the phenomena of precursors, as generally follows from more elaborate studies. The simplicity of the present arguments permit analytic studies to be made for a greater variety of media than is normally the case.

John R. Klauder

2004-02-25T23:59:59.000Z

175

Seasonal thermal energy storage in unsaturated soils: Model development and field validation  

DOE Green Energy (OSTI)

This report summarizes ten years of activity carried out at the Earth Sciences Division of the Lawrence Berkeley Laboratory (LBI) in the subject of seasonal storage of thermal energy in unsaturated soils. The objectives of the work were to make a conceptual study of this type of storage, to offer guidelines for planning and evaluation of the method, to produce models and simulation for an actual field experiment, to participate in an on-line data analysis of experimental results. and to evaluate the results in terms of the validation of the concept, models and the experimental techniques. The actual field experiments were performed in Beer-Sheva, Israel. Details of engineering and field operations are not included in this report.

Doughty, C.; Nir, Aharon, Tsang, Chin-Fu

1991-06-01T23:59:59.000Z

176

The influence of changes in water content on the electrical resistivity of a natural unsaturated loess  

E-Print Network (OSTI)

Non-destructive methods of measuring water content in soils have been extensively developed in the last decades, especially in soil science. Among these methods, the measurements based on the electrical resistivity are simple and reliable thanks to the clear relationship between the water content and the electrical resistivity of soils. In this work, a new electrical resistivity probe was developed to monitor the change in local water content in the triaxial apparatus. The probe is composed of two-pair of electrodes, and an electrical current is induced through the soil at the vicinity of the contact between the probe and the specimen. Some experimental data on the changes in resistivity with the degree of saturation were obtained in specimens of a natural unsaturated loess from Northern France. Two theoretical models of resistivity were also used to analyze the obtained data. Results are finally discussed with respect to the loess's water retention properties.

Munoz-Castelblanco, Jos; Delage, Pierre; Cui, Yu Jun

2013-01-01T23:59:59.000Z

177

Musical fingerprints: collaboration around home media collections  

Science Conference Proceedings (OSTI)

As people collect more and more digital music, photos, and video, the growing scale of the collection challenges how families share and collaborate around home media collections. We studied the intersection between physical and digital media collections. ... Keywords: media collection, media management, music sharing

Robin Sease; David W. McDonald

2009-05-01T23:59:59.000Z

178

Process for the generation of .alpha., .beta.-unsaturated carboxylic acids and esters using niobium catalyst  

DOE Patents (OSTI)

A process using a niobium catalyst includes the step of reacting an ester or carboxylic acid with oxygen and an alcohol in the presence a niobium catalyst to respectively produce an .alpha.,.beta.-unsaturated ester or carboxylic acid. Methanol may be used as the alcohol, and the ester or carboxylic acid may be passed over the niobium catalyst in a vapor stream containing oxygen and methanol. Alternatively, the process using a niobium catalyst may involve the step of reacting an ester and oxygen in the presence the niobium catalyst to produce an .alpha.,.beta.-unsaturated carboxylic acid. In this case the ester may be a methyl ester. In either case, niobium oxide may be used as the niobium catalyst with the niobium oxide being present on a support. The support may be an oxide selected from the group consisting of silicon oxide, aluminum oxide, titanium oxide and mixtures thereof. The catalyst may be formed by reacting niobium fluoride with the oxide serving as the support. The niobium catalyst may contain elemental niobium within the range of 1 wt % to 70 wt %, and more preferably within the range of 10 wt % to 30 wt %. The process may be operated at a temperature from 150 to 450.degree. C. and preferably from 250 to 350.degree. C. The process may be operated at a pressure from 0.1 to 15 atm. absolute and preferably from 0.5-5 atm. absolute. The flow rate of reactants may be from 10 to 10,000 L/kg.sub.(cat) /h, and preferably from 100 to 1,000 L/kg.sub.(cat) /h.

Gogate, Makarand Ratnakav (Durham, NC); Spivey, James Jerome (Cary, NC); Zoeller, Joseph Robert (Kingsport, TN)

1999-01-01T23:59:59.000Z

179

List View | Data.gov  

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

List View List View Safety Data/Tools Apps Challenges Resources Blogs Let's Talk Safety You are here Data.gov » Communities » Safety List View Interactive applications that visually display large datasets provide a portal to explore data and make discoveries. Federal agencies collect information on energy production, use, natural resources, and energy infrastructure logistics and this data can be used to create calculators, interactive maps, and other applications that leverage this data. These applications provide user communities the ability to highlight the energy issues that are occurring within their communities, aid businesses plan and analyze their proposed projects, and provide a baseline for analyzing how energy resources can be most optimally and efficiently used. This page

180

Media Room | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Media Room | National Nuclear Security Administration Media Room | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Media Room Home > Media Room Media Room NNSA's Office of Congressional, Intergovernmental, and Public Affairs regularly updates the web site with current press releases, newsletters,

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181

Social student media: a syllabus of social media for student media.  

E-Print Network (OSTI)

??This thesis project consists of social student media best practices in a downloadable PDF handbook located at SocialSyllabi.com. To create the handbook, an online survey (more)

Curran, Alyssa Lofgren

2013-01-01T23:59:59.000Z

182

Lighting for remote viewing systems  

SciTech Connect

Scenes viewed by television do not provide the same channels of information for judgment of distances as scenes viewed directly, since television eliminates or degrades several depth perception cues. However, it may be possible to improve depth perception of televised scenes by enhancing the information available through depth cues that are available from lighting. A literature survey and expert opinions were integrated to design a remote lighting arrangement which could enhance depth perception of operators performing remote handling operations. This paper describes the lighting arrangement and discusses some of its advantages and disadvantages. 10 references, 2 figures.

Draper, J.V.

1984-01-01T23:59:59.000Z

183

Lighting for remote viewing systems  

SciTech Connect

Scenes viewed by television do not provide the same channels of information for judgement of distances as scenes viewed directly, since television eliminates or degrades several depth perception cues. However, it may be possible to improve depth perception of televised scenes by enhancing the information available through depth cues that are available from lighting. A literature survey and expert opinions were integrated to design a remote lighting arrangement which could enhance depth perception of operators performing remote handling operations. This paper describes the lighting arrangement and discusses some of its advantages and disadvantages. 10 references, 2 figures.

Draper, J.V.

1984-01-01T23:59:59.000Z

184

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E-Print Network (OSTI)

NSAs have to guarantee that no private information from ...... tive to complementary cell suppression, manuscript, Energy Information Admin- istration

185

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E-Print Network (OSTI)

and algorithms in this area, as well as several application areas where ...... solver reached assignment for proof timeout) found of SAT. Gap. 269. 51. 2. 20. 664.

186

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E-Print Network (OSTI)

1.2 Notation and organization of the paper ... This paper is organized as follows. ..... i is the i-th eigenvalue of C. Then, letting R := QT RQ and H := QT HQ, we.

187

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E-Print Network (OSTI)

May 22, 2003 ... although the corresponding proximity function does not have a ..... Suppose that the statement of the lemma does not hold, i.e., ...... 397413.

188

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E-Print Network (OSTI)

Naive exploration of this neighborhood is computationally ..... Table 2: Problem Sizes for Production Planning Test Instances. In both Table 1 and Table 2, the...

189

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E-Print Network (OSTI)

Note to PractitionersIn practice, production scheduling is a crucial task at ..... the search when the exploration is close to the root, and thus makes cutoff less...

190

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E-Print Network (OSTI)

Mar 1, 2007 ... Some of the most successful methods are: Tabu search in [Gho03], a combination of Tabu ... equality constraints are dualized as before, but they also enter the ... term it is possible to avoid fast increase of the Lagrangian dual...

191

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E-Print Network (OSTI)

of image reconstruction from projections in [26], significant and valuable ac- ... ods, which makes them successful in real-world applications, is computa-. 4...

192

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E-Print Network (OSTI)

[23]T. S. Motzkin. The arithmetic-geometric inequality. In Inequalities ( Proceedings of Symposium Wright. Patterson Air Force Base, Ohio, 1965), pages 205224.

193

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E-Print Network (OSTI)

an astutely selected small working set does not significantly increase the total number of iterations required to solve the problem, and sometimes even reduces it...

194

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E-Print Network (OSTI)

Introduction. Consider the linear programming problem in the standard form [5, 14] minimize ... row index, say i, has to be determined such that ?j = min {bl/al,j ...

195

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E-Print Network (OSTI)

As is known to us, Cognition process is the instinct learning ability of human being, ..... What's more, to alleviate the undesirable effects of estimation error in the...

196

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E-Print Network (OSTI)

M? denotes the solar mass. which mimic the corresponding natural processes, ..... Gravitational radiation. In S. W. Hawking and W. Israel, editors,. 300 Years of...

197

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Science Conference Proceedings (OSTI)

Energy Conversion Photovoltaic, Concentrating Solar Power, and Thermoelectric ... Green Technologies for Materials Manufacturing and Processing IV.

198

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Science Conference Proceedings (OSTI)

Feb 15, 2011 ... cost for low power plant ... Fitness for small electricity grids, reduced .... Need a factory to make the price attractive, need an attractive price to.

199

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E-Print Network (OSTI)

tioning, clearly identify the utility function that characterizes their attitude toward risk. The use of expected ...... with largest fixed interest rate. Alternatively, our...

200

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E-Print Network (OSTI)

to the performance of the exact method of [1]. They are very comparable to those of [8], although have a higher rate of increase with dimension d and/or number...

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201

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E-Print Network (OSTI)

breakpoint at ?, and given by the two lines L1 and L2. Clearly, if ?L(v) ..... overhead which would be, for example, incurred at every node of a branch- and-

202

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Science Conference Proceedings (OSTI)

availability-manufacturing, processing, fabrication joining, uniformity, balance of properties (what properties are important limiting), qualification, codes, safety...

203

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E-Print Network (OSTI)

Oct 30, 2002 ... Turing machine model, our analysis yields an O(n. 3.5 .... analysis of Vavasis and Ye's algorithm is based on the notion of crossover event,.

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E-Print Network (OSTI)

May 12, 2005 ... Our algorithm is a result of the combination of stochastic ap- proximation ideas ... 2EDF R&D ... 3EDF R&D ..... Let us state the main result of this section: ..... IEEE Transactions on Systems, Science and Cybernetics, 5:307. 14.

205

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E-Print Network (OSTI)

1France Tlcom R&D, 38-40 rue du gl Leclerc, 92130 Issy-les-Moulineaux, France ... The results obtained outperform many methods based on earlier literature. ...... Linear programming under uncertainty, Management Science, 1 (

206

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E-Print Network (OSTI)

Sep 22, 2006 ... minimizing the cost of the thermal power production if the hydro-power plant cannot supply the demand completely. Dynamic programming is a...

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Science Conference Proceedings (OSTI)

Jul 13, 2012 ... Current emphasis: visualization, data mining and applications in oil and ..... Internships. Agreement Enhancements. Discount on indirect costs.

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E-Print Network (OSTI)

Jan 27, 2011 ... Cost Horizons and Certainty Equivalents: An Approach to Stochastic Programming of Heating Oil. Management Science, 4(3):253. 263, 1958.

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E-Print Network (OSTI)

Optimization Technical Report. ISyE Department, University of Wisconsin- Madison. Oktay Gnlk1 Jeff Linderoth2. Perspective Reformulations of Mixed Integer.

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Science Conference Proceedings (OSTI)

Red Herring Dec 2001. Nanotechnology is the understanding and control of matter at dimensions of roughly 1 to. 100 nanometers, where unique phenomena .

211

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E-Print Network (OSTI)

We tested these formu- ... and finding radiation treatment plans in the presence of organ motion. ...... We report the number instances for which the heuristic.

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E-Print Network (OSTI)

Jul 18, 2008 ... Let us define the energy product and corresponding energy norm with respect to an ...... 3.2 Shape optimization in 3D for EIT and DC resistivity.

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E-Print Network (OSTI)

2003. The Solver Manuals. GAMS Development Corporation, Washington, DC, USA. Gilbert, J. 2007a. Organization of the Modulopt collection of optimization...

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E-Print Network (OSTI)

erwin@gams.com. GAMS Development Corp. Washington DC. 19th June 2001. Abstract. The `Progressive Party Problem' [9] has long been considered a prob-.

215

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E-Print Network (OSTI)

Oct 6, 2004... and Systems Engineering, Georgia Institute of Technology, Atlanta, .... The methods described in this paper reduce the energy function (1) at...

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E-Print Network (OSTI)

digital communication networks. .... bound. IEEE Transactions on Communications, 52:632642, 2004. ... uscript, Georgia Institute of Technology, 2007.

217

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E-Print Network (OSTI)

It models optimal placement of communications relay nodes in the pres- ence of obstacles. This problem ...... tion Technology (CENIIT). The authors would like to

218

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E-Print Network (OSTI)

AbstractWe consider the classical problem of estimating ... (a) to provide an estimate fn of f such that the first 2n+1 .... course at a higher computational cost.

219

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E-Print Network (OSTI)

G as a road system, T as petrol stations and a driver who wants to go from u to v. Then B(u, v) is ..... [9] (gas distribution) provide instances where almost all...

220

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E-Print Network (OSTI)

Aug 30, 2004 ... (where s?1 denotes the vector of reciprocals of the components of s), so that necessarily x = s?1 > 0, ... be written in the more symmetrical form.

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221

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E-Print Network (OSTI)

The colon cancer dataset contains 22 normal and 40 colon cancer tissues ..... P. Wolfe, An algorithm for quadratic programming, Naval Research Logistics.

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Oct 14, 2009 ... where A?(y) = ?i yiA(i) maps Rm to Sn, C is the cone of copositive ...... [14] Lovsz, L. (1979), On the Shannon capacity of a graph, IEEE...

223

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each component is non-zero precisely once in every cycle of n iterations. Thus, ... and these may not inherit the overall rate of the combined pair. Similarly, in.

224

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E-Print Network (OSTI)

[8] J. Eckstein and M. Fukushima, Some reformulation and applications of the alternating ... [10] M. Fukushima, Application of the alternating direction method of

225

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E-Print Network (OSTI)

Feb 5, 2002 ... environment (profile) of an amino acid in terms of its contact shells. ..... that in order to use the MaxF heuristic we need to be able to load all.

226

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E-Print Network (OSTI)

However, numerical simulations allow us to conjecture ... property of the optimal weights a?0,...,a?n and also an illustrative example of ... Let us define the weighted sum of exponential functions for a ? RN+1 and h ...... be two azimuth angles. ... [2] A. Labeyrie, Resolved imaging of extra-solar planets with future 10-

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trajectories, dissipative dynamical systems, Lyapunov analysis, weak .... the link with some classical results concerning semi-groups of contractions generated.

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borhood and a curve is built by linking all the points. The coordinates of ..... Learning algorithms could also be used to automatically guide the search through...

229

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E-Print Network (OSTI)

by learning mathematical principles, and subsequent implementation of mathematical ... area under a curve as a sum of areas of rectangles as the width of each...

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E-Print Network (OSTI)

Sep 18, 2009 ... telecommunication industry [49] which can be reformulated as a two-stage ...... problem under equilibrium constraints in electricity spot market...

231

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Science Conference Proceedings (OSTI)

Jun 6, 2012 ... fossil fuels and chart a new course on energy in this country, we are condemning future generations to global catastrophe. Senator Obama...

232

View  

E-Print Network (OSTI)

Oct 19, 2010 ... In aircraft routing, maintenance events replenish aircrafts' ability to fly. In .... with several different label data structure and treatment strategies.

233

View  

E-Print Network (OSTI)

of an extension of the Fundamental Theorem of Linear Programming, and proved , in ..... with ?v for v = [0,..., 0, 1] ? Rn (it does not matter that Nowak drops the last row and ...... Handbook of Combinatorial Optimization (supp. Vol. A), 174.

234

View  

E-Print Network (OSTI)

and Boyd (1996), Todd (2001), the SDP handbook edited by Wolkowicz et al. ..... cut polytope CHULL(G) does not admit a polynomial time separation oracle, but ...... problem. In cutting plane algorithms it is of fundamental importance that re-.

235

View  

E-Print Network (OSTI)

s k C bakc D s k C bas a.s k/c s k C bas .s k/c D s k C as .s k/ D as; the claim follows. Lemma A.2 (Chernoff bounds, see Mitzenmacher and Upfal [17]). Let X1;:

236

View  

E-Print Network (OSTI)

In order to increase the search capability of MBH, a population framework has been proposed ... The key idea is to avoid new individuals to enter the population if someone similar (in a ..... We measure the efficiency in terms of number of (two-.

237

View  

E-Print Network (OSTI)

These plugins have two essential callbacks that are called .... assigned to opened facilities so that the total sum of connection distances is minimized and the...

238

View  

E-Print Network (OSTI)

Feb 28, 2012 ... assumed to be essential and the only decision criterion is the travel distance. The portion ... On the other side, customers choose the facilities to.

239

View  

E-Print Network (OSTI)

Rep., Argonne National Laboratory, Argonne,. Illinois, USA, 1992. [2] A. Borzi and K. Kunisch, A globalization strategy for the multigrid solution of elliptic optimal...

240

View  

E-Print Network (OSTI)

one additional order of magnitude) by finding the best axis-parallel ellipsoid, which is however too expensive to be done (outside the root node) within our...

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

View  

E-Print Network (OSTI)

does not apply here because the objective function of LFMP may be unbounded ...... Handbook of Global Optimization, Kluwer Academic Publishers, 495-608.

242

View  

E-Print Network (OSTI)

Department of Applied Mathematics, Beijing Jiaotong University, Beijing ... (SDP), plays a fundamental role in mathematical programming, see, e.g., [21, 2, 7]. ...... [ 21] H. Wolkowicz, R. Saigal, L. Vandenberghe: Handbook of Semidefinite...

243

View  

E-Print Network (OSTI)

Feb 22, 2002 ... This problem is of fundamental importance in mathematics and physical sciences ... ?Department of Mathematics and Statistics, University of Guelph, Ontario N1G 2W1, Canada. Email: ...... Handbook of Semidefinite Program-.

244

View  

Science Conference Proceedings (OSTI)

Aug 6, 2010 ... (doi:10.1007/s00134-010-1979-1) contains supplementary material, which is .... The visual inspection of the distribution of the EQ-5D scores...

245

View  

Science Conference Proceedings (OSTI)

Feb 16, 1998 ... temperatures and quenched by injecting helium gas. All processes ..... retrofitted with mushroom shaped TiB2-G cathode elements and op- erated for ..... same time improving the formability of alloys and reducing the natural aging rate. .... of many magnesium die castings in production vehicles. In order for...

246

View  

E-Print Network (OSTI)

Jul 3, 2007 ... some cases, give conjectures in a fully automated way). Considering that ..... The input of the program is the definition of a given problem written in a text file. .... For instance, one can get statistics ... To determine S, GraPHedron does not need to access the graphs. ..... on Graph Theory (Novi Sad, 1983), pp.

247

Census and viewing of organisms  

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

Census and viewing of organisms Census and viewing of organisms Name: m hariaczyi Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: How many organisms exist in the world today? What is the most powerful microscope that could be used for viewing organism? Replies: The most powerful microscope is called an electron microscope, which can be used for viewing entire organisms, although few organisms are small enough to see all of them at high magnifications allowed by this microscope. So most often its used to look at fixed sections of organisms. Since the electron microscope only works in a vacuum, with no air, you cannot look at live organisms. To do that, probably the most powerful microscope is called a Nomarski, or in technical terms, a "differential interference contrast" microscope. This is a modification of a normal light microscope that allows better contrast in living tissue. It is not any more powerful than a light microscope, and is much less powerful than an electron microscope, but it allows you to see living things much better.

248

Bayesian networks: A teacher's view  

Science Conference Proceedings (OSTI)

Teachers viewing Bayesian network-based proficiency estimates from a classroom full of students face a different problem from a tutor looking at one student at a time. Fortunately, individual proficiency estimates can be aggregated into classroom and ... Keywords: Aggregation, Bayesian networks, Computer graphics, Probabilities

Russell G. Almond; Valerie J. Shute; Jody S. Underwood; Juan-Diego Zapata-Rivera

2009-03-01T23:59:59.000Z

249

On the computation of relational view complements  

Science Conference Proceedings (OSTI)

Views as a means to describe parts of a given data collection play an important role in many database applications. In dynamic environments where data is updated, not only information provided by views, but also information provided by data sources yet ... Keywords: Relational algebra, data warehouses, minimal complements, self-maintainability, view complements, views

Jens Lechtenbrger; Gottfried Vossen

2003-06-01T23:59:59.000Z

250

Media Release Media Contact FOR IMMEDIATE RELEASE Heather Rasmussen  

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

Release Media Contact Release Media Contact FOR IMMEDIATE RELEASE Heather Rasmussen September 22, 2011 Communication Specialist (801) 819-7623 hrasmussen@wecc.biz WECC releases its first-ever transmission plan for the Western Interconnection The Western Electricity Coordinating Council (WECC) announced the release of its first 10-Year Regional Transmission Plan (Plan) for the Western Interconnection. Looking ahead to 2020, the Plan focuses on how to meet the Western Interconnection's transmission requirements; including transmission expansion, new generation development, adapting to local, state/provincial, and federal policy changes, and their associated financial and environmental costs.

251

Greentech Media | Open Energy Information  

Open Energy Info (EERE)

Greentech Media Greentech Media Jump to: navigation, search Name Greentech media Address 1132 massachusetts avenue Place Cambridge, Massachusetts Zip 02138 Region Greater Boston Area Number of employees 11-50 Year founded 2007 Phone number 617 500 4345 Coordinates 42.3708°, -71.1142° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.3708,"lon":-71.1142,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

252

Media Mentions | ornl.gov  

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

Media Mentions Media Mentions Media Mentions 1-10 of 21 Results Prev 123 Next Modeling and Simulation Made Nice May 01, 2013 - It is often the little things - input or compiler flags, unfamiliar file for- mats, cryptic output - that make users pause before embracing new scientific software. CSMD Researcher Moetasim Ashfaq published in Nature Climate May 15, 2013 - CSMD researcher Moetasim Ashfaq's paper "Response of snow-dependent hydrologic extremes to continued global warming" has been published by Nature magazine's online presense Nature Climate Change. CLIMATE - Going small with big computers April 02, 2013 - ORNL's supercomputers are allowing climate scientists to zoom in on smaller and smaller areas to try to determine whether local and regional droughts influence climate extremes on a larger scale. What is the

253

Media Inquiries | Data.gov  

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

Media Inquiries Media Inquiries If you are preparing an article or creating an event, reach out to the Data.gov team to help you with information, a speaker, or other help in communicating about open data in America. Media Inquiry Jeanne Holm Data.gov Evangelist, GSA (818) 434-5037 Jeanne.Holm@jpl.nasa.gov JR Wycinsky Senior Communications Manager, GSA (202) 400-1715 david.wycinsky@gsa.gov What's New Looking for recent information about Data.gov? You can see our blogs and features, highlighted datasets, and updates. To find recent news articles about Data.gov, see Data.gov in the News. Use of Logo The image below is the official Data.gov logo. datagov_2014_logo If you have any questions about linking to Data.gov, the use of the logo, or want more information or promotional materials on Data.gov, please

254

Composite media for ion processing  

DOE Patents (OSTI)

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

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

2009-12-08T23:59:59.000Z

255

Lipid Analysis and Lipidomics: New Techniques & Application-Ch 6Structural Analysis of Unsaturated Fatty Acid Methyl Ester Isomers with Acetonitrile Covalent Adduct Chemical Ionization  

Science Conference Proceedings (OSTI)

Lipid Analysis and Lipidomics: New Techniques & Application-Ch 6 Structural Analysis of Unsaturated Fatty Acid Methyl Ester Isomers with Acetonitrile Covalent Adduct Chemical Ionization Methods and Analyses eChapters Methods - Analyses Book

256

Views of the solar system  

SciTech Connect

Views of the Solar System has been created as an educational tour of the solar system. It contains images and information about the Sun, planets, moons, asteroids and comets found within the solar system. The image processing for many of the images was done by the author. This tour uses hypertext to allow space travel by simply clicking on a desired planet. This causes information and images about the planet to appear on screen. While on a planet page, hyperlinks travel to pages about the moons and other relevant available resources. Unusual terms are linked to and defined in the Glossary page. Statistical information of the planets and satellites can be browsed through lists sorted by name, radius and distance. History of Space Exploration contains information about rocket history, early astronauts, space missions, spacecraft and detailed chronology tables of space exploration. The Table of Contents page has links to all of the various pages within Views Of the Solar System.

Hamilton, C.

1995-02-01T23:59:59.000Z

257

The hydroxyl radical initiated oxidation of unsaturated hydrocarbons in the troposphere: a theoretical and experimental approach  

E-Print Network (OSTI)

Isoprene is the dominant non-methane organic compound emitted by vegetation into the atmosphere, with a global emission rate of ~ 500 Tg yr-1. Its oxidation serves as a major source of ground level ozone in North America during the summer months. Despite the significant impact on tropospheric chemistry, questions remain concerning the detailed oxidation mechanism. The initial step in the mechanism is the addition of OH to form four distinct isomers. The relative branching between these isomers influences the distribution of the final products. I present a comprehensive investigation into the mechanistic details of early steps in the oxidation mechanism of unsaturated hydrocarbons in the troposphere and employ theoretical and experimental techniques. To understand the detailed kinetics of the initial OH addition to unsaturated hydrocarbons, I first present a model developed for the ethylene-OH system. I present the details of a robust two-transition state model. I extend the developed two-transition state model to the case of OH addition to isoprene. Excellent agreement with observed temperature and pressure dependent rate constants affords a high confidence level in understanding of the kinetics and in the calculated branching ratio of the initial OH addition step. I then focus attention on the subsequent reactivity of the OH-isoprene adducts. Until recently, all four of the OH-isoprene adducts were supposed to have reacted with O2 via addition to form alkylperoxy radicals. Previous computational results suggest that two of the OH-isoprene adducts undergo an intramolecular cyclic isomerization followed by hydrogen abstraction by O2 to form stable carbonyl compounds. I have synthesized photolytic precursors, presenting a novel approach to probe the subsequent reactivity of individual hydroxyalkyl radicals. Initial verification of the cyclic isomerization pathway involved synthesis of the photolytic precursor corresponding to the 1,3-butadiene-OH adduct. A culmination of theoretical and experimental techniques allowed verification of the cyclic isomerization pathway. I synthesized the photolytic precursor, which provided a single isoprene-OH adduct. Employing laser photolysis/laser induced fluorescence, time-dependent multiplexed mass spectrometry, velocity map ion imaging, and theoretical techniques, we present the full characterization of the reactivity of the single isoprene-OH adduct in the presence of O2.

Tullos, Erin Elizabeth

2007-05-01T23:59:59.000Z

258

Numerical analyses of effective dielectric constant of multiphase microporous media  

E-Print Network (OSTI)

dielectric constant of multiphase porous media are bettermicrostructures of multiphase porous media, and a latticemicrostructures of multiphase porous media and a lattice

Wang, Moran; Pan, Ning

2007-01-01T23:59:59.000Z

259

Social Media | Argonne National Laboratory  

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

triviatuesday View this on Twitter @argonne 4 days ago MT @C2ST: Congrats to Adam Khan of @akhantech on Forbes 30 under 30 Come hear him speak on 130 @argonne. Details:...

260

Social Media | Argonne National Laboratory  

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

energy... from Flickr More Twitter @argonne 1 week ago For the duration of the lapse of federal funding, tweets will not be sent from this account. 19 retweets View this on...

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Raqs Media Collective Flash Force  

E-Print Network (OSTI)

extended only to a couple of inches. With the invention of light bulbs, scientists started detonatingRaqs Media Collective Flash Force: A Visual History of Might, Right and Light Perhaps the greatest of light and divorcing these from the potent explosions that initially produced them. It is a history

Canales, Jimena

262

Transport in porous and fractured media of the Creede Formation  

DOE Green Energy (OSTI)

Direct measurement was made of the hydraulic conductivity of Creede Formation rocks using a new experimental method. The UFA{trademark} method employs open-flow centrifugation. Centrifugation, like gravity, has the effect on a material of a whole-body force exerting equal force at all points within the sample. The equivalent gravitational force exerted throughout the sample can be chosen to be from one to four orders of magnitude higher than earth gravity (from 10 to 10,000 g). The result is an increase in rate of fluid flow equally at all points throughout the sample so that hydraulic steady state is obtained in most geologic materials in hours, even under highly unsaturated conditions. This extraordinarily short time allows direct measurement of transport parameters, such as hydraulic conductivity, diffusion coefficient, and retardation factors, in any porous media over the complete range of field moisture contents. Hydraulic conductivities in the Creede Formation rocks ranged from 10{sup {minus}12} cm/s to 10{sup {minus}7} cm/s (10{sup {minus}9} Darcy to 10{sup {minus}4} Darcy) and showed no correlation with any other physical or mineralogical properties including porosity. The high degree of alteration to clay minerals appears to obscure any porosity/permeability relationship of the kind that occurs in many reservoir rocks. However, down-hole neutron porosities correlated well with laboratory-determined porosities. The objective of this investigation is to determine the hydrologic transport parameters of Creede Formation rocks for use in transport model development and for image analysis of transport pathways to produce a porosity/permeability evolution curve in support of geochemical and isotopic water/rock interaction models.

Conca, J.L.

1995-12-31T23:59:59.000Z

263

media-contacts | ornl.gov  

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

Find People Find People General Contacts Leadership Team Media Contacts User Facility Contacts Internal Users Home | Our People | Media Contacts SHARE Media Contacts ORNL's Communications team works with national, regional, and local media outlets on news stories about the laboratory. Media seeking more information on ORNL research and development activities may refer to the resources listed below. General questions not related to media queries may be sent to news@ornl.gov. Media Queries 865.574.4160 Experts List ORNL scientists and engineers are available as information resources for the media. For assistance in scheduling interviews, please contact the Office of Communications and External Relations at 865.574.4160. Photo Gallery Campus shots and research images from ORNL.

264

Scalable spatially aware media sharing display system  

E-Print Network (OSTI)

The scalable spatially aware media sharing display system provides an efficient and convenient means of harnessing media messaging in global communications. A three- tiered system of input, control, and output creates a ...

Menard, Patrick, 1981-

2004-01-01T23:59:59.000Z

265

Reaction progress pathways for glass and spent fuel under unsaturated conditions  

Science Conference Proceedings (OSTI)

The source term for the release of radionuclides from a nuclear waste repository is the waste form. In order to assess the performance of the repository and the engineered barrier system (EBS) compared to regulations established by the Nuclear Regulatory Commission and the Environmental Protection Agency it is necessary (1) to use available data to place bounding limits on release rates from the EBS, and (2) to develop a mechanistic predictive model of the radionuclide release and validate the model against tests done under a variety of different potential reaction conditions. The problem with (1) is that there is little experience to use when evaluating waste form reaction under unsaturated conditions such that errors in applying expert judgment to the problem may be significant. The second approach, to test and model the waste form reaction, is a more defensible means of providing input to the prediction of radionuclide release. In this approach, information related to the source term has a technical basis and provides a starting point to make reasonable assumptions for long-term behavior. Key aspects of this approach are an understanding of the reaction progress mechanism and the ability to model the tests using a geochemical code such as EQ3/6. Current knowledge of glass, UO{sub 2}, and spent fuel reactions under different conditions are described below.

Bates, J.; Finn, P.; Bourcier, W.; Stout, R.

1994-10-01T23:59:59.000Z

266

Modeling of Unsaturated Salt-cake Dissolution for S-109 Simulant  

Science Conference Proceedings (OSTI)

The Environmental Simulation Program (V7.0, OLI Systems, Inc.) with V7DBLSLT, the latest version of the double salt database developed by the Institute of Clean Energy Technology (ICET), was used to predict effluent stream compositions and densities, residual salt-cake composition, and salt-cake heights for an unsaturated salt-cake dissolution test with a simulant representative of waste contained in Hanford tank 241-S-109. Predictions for major cation and anion concentrations were in excellent agreement with the experimental data obtained at the Applied Research Center (ARC) at Florida International University (FIU). The utility of ESP as a means to predict effluent stream compositions and effluent stream properties, such as density and column salt-cake height, is demonstrated through the agreement between experimental and predicted values. These, and previous calculations, validate the use of thermodynamic models (with proper chemistry representations) for HLW pretreatment and retrievals. A powerful and useful tool is the result. Cost reductions are possible as the amount of sampling and subsequent laboratory analysis can be reduced. Additionally, overall processing risk is reduced through the ability to rapidly evaluate different processing and retrieval scenarios. The application of appropriate models can thus lead to more efficient operations and campaign cost savings while also evaluating parameters pertinent to safety. (authors)

Toghiani, R.K.; Lindner, J.S. [Institute for Clean Energy Technology, Mississippi State Univ., Starkville, MS (United States); Toghiani, R.K. [Dave C. Swalm School of Chemical Engineering, Mississippi State Univ., Starkville, MS (United States)

2008-07-01T23:59:59.000Z

267

Perception and Digital Media in India  

Science Conference Proceedings (OSTI)

This essay analyzes the body politics at the center of both business services outsourcing labor also termed affective, immaterial, or communicative labor and the value-adding digital image in contemporary Indian media. The author uses a "media assemblage" ... Keywords: Affect, Digital Media, Electronic Commerce, India, Information Systems, Value Added

Amit S. Rai

2012-10-01T23:59:59.000Z

268

The big bang: An example of mobile media as new media  

Science Conference Proceedings (OSTI)

Over the last couple of years we have become used to the global media informing us about the revolutionary and democratic possibilities of mobile media. As a symbol of technological convergence, the multimedia possibilities of mobile media have become ... Keywords: Mobile media, South Korean online communities, mobile gaming, mobility

Larissa Hjorth

2009-06-01T23:59:59.000Z

269

Social Media Records and You | Department of Energy  

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

Social Media Records and You More Documents & Publications Social Media Records and You SCWeb2.0SocialMedia.pdf Guidelines for Secure Use of Social Media by Federal...

270

Logical queries over views: Decidability and expressiveness  

Science Conference Proceedings (OSTI)

We study the problem of deciding the satisfiability of first-order logic queries over views, with our aim to delimit the boundary between the decidable and the undecidable fragments of this language. Views currently occupy a central place in database ... Keywords: Lwenheim class, Satisfiability, conjunctive query, containment, database query, database view, decidability, first-order logic, monadic logic, ontology reasoning, unary logic, unary view

James Bailey; Guozhu Dong; Anthony WIDJAJA To

2010-01-01T23:59:59.000Z

271

On the transport of emulsions in porous media  

E-Print Network (OSTI)

tions related to multiphase ?ow in porous media. We haveof multiphase ?ow. Key words: emulsion, porous media,

Cortis, Andrea; Ghezzehei, Teamrat A.

2008-01-01T23:59:59.000Z

272

Media advisory: breakfast and brilliance . . .  

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

Creating our tomorrows, LDRD Day 2012 Creating our tomorrows, LDRD Day 2012 Media advisory: breakfast and brilliance . . . Media are invited to the annual celebration of Laboratory Directed Research and Development (LDRD) projects on October 23. October 17, 2012 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Nancy Ambrosiano

273

Social media request | Department of Energy  

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

About Energy.gov » Web Policies » Social Media » Social media About Energy.gov » Web Policies » Social Media » Social media request Social media request Please fill out the information below in order to request access to a social media application or to have an existing account verified as an official Department of Energy presence. Please wait for a response from the Office of Digital Strategy before proceeding with establishing an account. Contact information First name * Last name * Title * Office * Email address * Phone number * Are you authorized to make this request or have you received the proper approvals to do so? * No, I'm not authorized Yes, I'm authorized Application Social media application(s) you want to utilize * Facebook LinkedIn Slideshare Socrata Twitter Instagram Storify Myspace SurveyMonkey Request a tool we don't currently offer

274

TotalView Parallel Debugger at NERSC  

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

Totalview Totalview Totalview Description TotalView from Rogue Wave Software is a parallel debugging tool that can be run with up to 512 processors. It provides both X Windows-based Graphical User Interface (GUI) and command line interface (CLI) environments for debugging. The performance of the GUI can be greatly improved if used in conjunction with free NX software. The TotalView documentation web page is a good resource for learning more about some of the advanced TotalView features. Accessing Totalview at NERSC To use TotalView at NERSC, first load the TotalView modulefile to set the correct environment settings with the following command: % module load totalview Compiling Code to Run with TotalView In order to use TotalView, code must be compiled with the -g option. We

275

Media representation of maternal neonaticide  

E-Print Network (OSTI)

The present research conducted a rich discourse analysis of an episode of the fictional television crime drama, Law & Order: Special Victims Unit, as well as a content analysis of local and national news transcripts focusing on the representation of mothers who commit neonaticide. Both fictional and non-fictional media sources exhibited aspects of the monstrous maternal theme and the strain defense theme. The monstrous maternal theme consists of words and statements that indicate the descriptions of crime committed against the newborn as well as negative responses and reactions by others to the young mother and her crime. The strain defense theme refers to instances that discuss the internal and external strains of the young woman that may have contributed to her committing neonaticide. However, the "monstrous maternal" is the prevailing representation of mothers who commit neonaticide in both fictional and non-fictional media sources. This media representation utilizes "control talk" to separate "us" the good mothers, who abide by the cultural expectations of traditional gender roles and embrace the internal and external strains of motherhood, from "them" the criminal mothers, who fail to adhere to these role expectations of motherhood by committing neonaticide. The present research reveals that cultural stories and scripts of the monstrous maternal still exist. This contemporary folklore may serve as a form of social control to scare women into conforming to these traditional gender roles and bearing the burden of the motherhood strains, in order to avoid being branded a bad mother. Finally, the present research develops the application of General Strain Theory to explain the internal and external strains of a young woman that may contribute to her committing the criminal act of maternal neonaticide. These media representations of maternal neonaticide could impact the criminal justice system and public policy. Questions of accuracy, gendered understandings of crime and gendered understanding of appropriate punishment are areas the present research explores. Most importantly, the present research seeks to investigate the connection between legal culture in both media and professional practice - and what those connections mean for our general cultural understandings of violence and aggression in women.

Lewis, Jocelyn Renee

2008-05-01T23:59:59.000Z

276

Adaptation of user views to business requirements: towards adaptive views models  

Science Conference Proceedings (OSTI)

This article describes an approach to model user views in service-oriented groupware systems in order to support the adaptation of views in collaborative projects environments. The issue is to adapt the visualization to the users' business requirements ... Keywords: AEC (architecture engineering construction), CSCW, information visualization, model driven engineering, user view, user view model

Conrad Boton; Sylvain Kubicki; Gilles Halin

2010-09-01T23:59:59.000Z

277

A Regulator's View of Cogeneration  

E-Print Network (OSTI)

The Pennsylvania Public Utility Commission regulates essentially all types of public utilities and has the authority to investigate issues of public interest. To establish a point of reference, Pennsylvania's utilities contribute about 5 percent of the total national electric generation. In view of the energy requirements of Pennsylvania's industry and the impact of increasing energy costs on employment the Commission directed its technical staff to investigate the potential for industrial cogeneration and a pricing formula consistent with the electric utilities' costs. The Commission's technical staff has completed proposed regulations to implement the provisions of the Public Utility Regulatory Policies Act (PURPA) Section 210 concerning small power producers. The regulations incorporate suggestions from both potential producers and utilities. Staff has devised a strategy for utility purchases of energy and capacity which should be of interest to regulators in other jurisdictions, encourage potential cogenerators and satisfy utilities.

Shanaman, S. M.

1982-01-01T23:59:59.000Z

278

METAL MEDIA FILTERS, AG-1 SECTION FI  

Science Conference Proceedings (OSTI)

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

Adamson, D.

2012-05-23T23:59:59.000Z

279

Marketing & Driving Demand: Social Media Tools & Strategies ...  

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

Marketing & Driving Demand: Social Media Tools & Strategies January 16, 2011 Maryanne Fuller (MF): Hi there. This is Maryanne Fuller from Lawrence Berkeley National Laboratory....

280

Public-Private Sector Media Partnerships  

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

Public-Private Sector Public-Private Sector Media Partnerships Stacy Hunt, Confluence Communications March 1, 2012 Who is the Building America Retrofit Alliance (BARA)? * One of 10 industry teams funded in part by the U.S. Department of Energy's Building America program * Multidisciplinary and focused on building performance, multimedia content and program development, and EE/RE outreach Why are media partnerships important to Building America? * Access to large, loyal, qualified existing audiences * Tried and true communications channels, strategies, and materials * Often strong editorial voices and/or industry leadership positions Media Case Study The Cool Energy House Media Case Study What's Useful to Remodelers?

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

SOCIAL MEDIA: LEVERAGING VALUE WHILE MITIGATING ...  

Science Conference Proceedings (OSTI)

... Digital Natives NNSA staff are required to work in secure areas that prohibit the use of personal cell phones, e-mail, and social media, which ...

2013-05-21T23:59:59.000Z

282

SLAC National Accelerator Laboratory - News and Media  

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

news releases and articles, multimedia content and more. Press Contact: Andy Freeberg, SLAC Media Relations Manager 926-650-4359, afreeberg@slac.stanford.edu NEWS CENTER Browse...

283

The hidden activism : media practices and the media opportunity in Chinese politics of resistance  

E-Print Network (OSTI)

My thesis discusses the hidden and non-adversarial nature of resistance in authoritarian countries through the perspectives of media practices and media opportunity structure. To understand the art of resistance in ...

Sun, Huan, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

284

A Measurement System for Systematic Hydrological Characterization of Unsaturated Fractured Welded Tuff in a Mined Underground Tunnel  

SciTech Connect

A field investigation of unsaturated flow through a lithophysal unit of fractured welded tuff containing lithophysal cavities has been initiated. To characterize flow in this spatially heterogeneous medium, a systematic approach has been developed to perform tests in boreholes drilled at regular intervals in an underground tunnel (drift). In this paper, we describe the test equipment system that has been built for this purpose. Since the field-scale measurements, of liquid flow in the unsaturated, fractured rocks, require continuous testing for periods of days to weeks, the control of test equipment has been fully automated, allowing operation with no human presence at the field site. Preliminary results from the first set of tests are described. These tests give insight into the role of the matrix (perhaps also lithophysal cavities) as potential storage during the initial transient flow prior to the breakthrough of water at the drift crown, as well as the role of connected fractures that provide the subsequent quasi-steady flow. These tests also reveal the impact of evaporation on seepage into the drift.

R. J. Cook; R. Salve; B.M. Freifeld; Y.W. Tsang

2001-11-21T23:59:59.000Z

285

[Characterization of historical infiltration in the unsaturated zone at the Nevada Test Site using chloride, bromide, and chlorine-36 as environmental tracers]; [Final subcontract report  

SciTech Connect

This document is an end-of-contract report, prepared by Hydro Geo Chem for Los Alamos National Laboratory under contract number 9-XDD-6329F-1. The ultimate goal of this work is to characterize historical infiltration and unsaturated flow in the Yucca Mountain area of the Nevada Test Site. Work on this contract has focused on using chloride, bromide, stable chlorine isotopes, and chlorine-36 distributions to evaluate the depth of infiltration in the unsaturated zone. Effort in support of this work has included developing analytical procedures, exploring ways in which to separate the. meteoric component from the rock component, and meeting quality assurance requirements.

NONE

1991-05-17T23:59:59.000Z

286

Answering XML queries using materialized views revisited  

Science Conference Proceedings (OSTI)

Answering queries using views is a well-established technique in databases. In this context, two outstanding problems can be formulated. The first one consists in deciding whether a query can be answered exclusively using one or multiple materialized ... Keywords: XML, materialized views, xpath query evaluation

Xiaoying Wu; Dimitri Theodoratos; Wendy Hui Wang

2009-11-01T23:59:59.000Z

287

Query and update through XML views  

Science Conference Proceedings (OSTI)

XML has become a standard medium for data exchange, and XML views are frequently used as an interface to relational database and XML data. There have been a considerable number of studies on building and querying XML views, while updating related topics ...

Gao Cong

2007-10-01T23:59:59.000Z

288

User_Sup_ViewEmpMatrix  

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

an Employee Matrix (Supervisor) an Employee Matrix (Supervisor) © 2011 SuccessFactors, Inc. - 1 - SuccessFactors Learning Confidential. All rights reserved. Job Aid: Viewing an Employee Matrix (Supervisor) Purpose The purpose of this job aid is to guide supervisor users through the step-by-step process of viewing an employee matrix within SuccessFactors Learning. Task A. View an Employee Matrix From the Home page, click the My Employees tab. Click the Employee Matrix supervisor link. Click the Change Measures expand arrow ( ) to select criteria for comparison. View an Employee Matrix 8 Steps Task A 3 3 1 1 2 2 SuccessFactors Learning v 6.4 User Job Aid Viewing an Employee Matrix (Supervisor) © 2011 SuccessFactors, Inc. - 2 - SuccessFactors Learning Select a measure for the

289

Mountain View Grand | Open Energy Information  

Open Energy Info (EERE)

Grand Grand Jump to: navigation, search Name Mountain View Grand Facility Mountain View Grand Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Mountain View Grand Developer Sustainable Energy Developments Energy Purchaser Mountain View Grand Location Mountain View Grand Resort & Spa NH Coordinates 44.397987°, -71.590306° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.397987,"lon":-71.590306,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

290

Particle Deposition in Granular Media. Final report  

Science Conference Proceedings (OSTI)

Objective is to understand aerosol deposition from gas streams flowing through granular media; this is important to the design of granular filtration systems. The following investigations were carried out: transient behavior of granular filtration of aerosols, and stochastic simulation of aerosol deposition in granular media.

Tien, C.

1992-12-31T23:59:59.000Z

291

Lightweight automatic face annotation in media pages  

Science Conference Proceedings (OSTI)

Labeling human faces in images contained in Web media stories enables enriching the user experience offered by media sites. We propose a lightweight framework for automatic image annotation that exploits named entities mentioned in the article to significantly ... Keywords: face recognition, machine learning, text analysis, web search

Dmitri Perelman; Edward Bortnikov; Ronny Lempel; Roman Sandler

2012-04-01T23:59:59.000Z

292

Social media, participatory design and cultural engagement  

Science Conference Proceedings (OSTI)

This paper reports on the application of Participatory Design methodology to an experiment in social media production. Staff at the Australian Museum are developing new content genres, creative tools and techniques in order to produce original cultural ... Keywords: participatory content creation, participatory design, social media

Jerry Watkins

2007-11-01T23:59:59.000Z

293

Interactivity dimension: media, contents, and user perception  

Science Conference Proceedings (OSTI)

This research explores interactivity dimension in the portal media (such as Yahoo, Naver, Daum, Paran, and Nate). The research is designed to measure user's perception of interactivity in the portal site at the three levels including 1) media 2) contents, ... Keywords: CMC, HCI, communication, community, hypertext, interactivity, interface

Sang Hee Kweon; Eun Joung Cho; Eun Mee Kim

2008-09-01T23:59:59.000Z

294

Interaction Comparison among Media Internet Genre  

Science Conference Proceedings (OSTI)

This research explores interactivity dimension in the portal media (such as Yahoo, Naver, Daum, Paran, and Nate). The research is designed to measure user's perception of interactivity in the portal site at the three levels including 1) media 2) contents, ... Keywords: CMC, Communication, Community, HCI, Hypertext, Interactivity, Interface

Sang Hee Kweon; Eun Joung Cho; Ae Jin Cho

2009-07-01T23:59:59.000Z

295

Advanced Conceptual Models for Unsaturated and Two-Phase Flow in Fractured Rock  

DOE Green Energy (OSTI)

This project was initiated in FY03. As of December 2003, we have accomplished the following: (1) We conducted a more detailed evaluation of the preliminary experiments used to develop our investigative approach. In those experiments, water was invaded at a variety of flow rates into an air-filled, two dimensional analog fracture network. Results demonstrated the critical control that fracture intersections place on two-phase flow in fracture networks. At low flows, capillary and gravitational forces combined to create a narrow pulsing flow structure that spanned the system vertically. At higher flows, viscous forces acted to remove the pulsation; however, the flow structure remained narrow. The intersections acted to impose a narrow ''slender ladder'' structure on the flowing phase that did not expand with depth, but instead remained focused. A manuscript documenting this effort has been published in Water Resources Research [Glass et al., 2003a]. (2) We initiated a collaborative relationship with a research group at Seoul National University. This group, which is led by Dr. Kang-Kun Lee is also using a combined experimental numerical approach to consider DNAPL migration in fracture networks. They are particularly interested in the influence of ambient groundwater flows, making their work complementary to ours. The first fruit of that collaboration is an article demonstrating that modification of an Invasion Percolation algorithm to include gravity and the first-order effects of viscous forces shows good agreement with physical experiments in a simplistic fracture network. Results were published in Geophysical Research Letters [Ji et al., 2003a]. (3) We carried out an extensive review of models for fracture networks. These include models developed from observations of networks on outcrops at several scales and stochastic models that are prevalent in the literature from the 1980s to very recent developments. The results of this review were included as par t of a review paper co-authored by Rajaram, which was submitted to Reviews in Geophysics [Molz et al., in press]. (4) We prepared a manuscript based on previous work that will be used to support the development of our new conceptual model(s) for transport in fractured rock. Eight experiments were conducted to evaluate the repeatability of flow under nearly identical conditions and to characterize general patterns in flow behavior. Collected data revealed that flow generally converged to a single fracture in the bottom row of blocks. Periods of pathway switching were observed to be more common than periods with steady, constant flow pathways. We noted the importance of fracture intersections for integrating uniform flow and discharging a ''fluid cascade'', where water advances rapidly to the next capillary barrier creating a stop and start advance of water through the network. The results of this simple experiment suggest that the interaction of multiple fracture intersections in a network creates flow behavior not generally recognized in popular conceptual and numerical models. A manuscript documenting this effort has been accepted for publication in Vadose Zone Journal [Wood et al., 2003]. (5) Slender transport pathways have been found in laboratory and field experiments within unsaturated fractured rock. We considered the simulation of such structures with a Modified form of Invasion Percolation (MIP). Results show that slender pathways form in fracture networks for a wide range of expected conditions, can be maintained when subsequent matrix imbibition is imposed, and may arise even in the context of primarily matrix flow due to the action of fractures as barriers to inter-matrix block transport. A manuscript documenting this effort has been submitted to Geophysical Research Letters [Glass et al., 2003b].

Rajaram, Harihar

2003-06-01T23:59:59.000Z

296

Search and View a Service Request Search and View a Service Request,vlr  

E-Print Network (OSTI)

FAMIS Search and View a Service Request Search and View a Service Request,vlr 10/6/2012 © 2012 Northwestern University 1 Search and View a Service Request This training guide will show you how to search completion of this guide you will be able to: · Sign in to FAMIS Self Service · Search for service requests

Shull, Kenneth R.

297

MATHEMATICAL MODELS OF THERMAL AND CHEMICAL TRANSPORT IN GEOLOGIC MEDIA  

E-Print Network (OSTI)

for Modeling Fluid and Heat Flow in Fractured Porous Media,Fluid Flow in a Single Fracture Because the topology of fractured media is different from that of porous media,

Lai, C.-H.

2010-01-01T23:59:59.000Z

298

Social Media Records and You | Department of Energy  

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

Social Media Records and You More Documents & Publications Social Media Records and You SCWeb2.0SocialMedia.pdf Everything You Need To Know About Records Energy.gov Careers &...

299

Street media : ambient messages in an urban space  

E-Print Network (OSTI)

Ambient street media are the media of our everyday lives in cities. Manifested in bits and fragments on the surfaces of the streetscape, these media often escape our notice - tuned out as visual clutter or dismissed as ...

Murthy, Rekha (Rekha S.)

2005-01-01T23:59:59.000Z

300

A Mountain-Scale Thermal Hydrologic Model for Simulating Fluid Flow and Heat Transfer in Unsaturated Fractured Rock  

E-Print Network (OSTI)

heat flow in porous media, heat pipe, reservoir simulation,and vapor often leads to heat-pipe conditions, the steadytwo-phase zone, is the heat-pipe (i.e. , a zone of constant

Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni; Bodvarsson, Gudmundur S.

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Pore-scale simulations of drainage of heterogeneous and anisotropic porous media  

Science Conference Proceedings (OSTI)

A numerical model based on smoothed particle hydrodynamics (SPH) was used to simulate pore-scale liquid and gas flow in synthetic two-dimensional porous media consisting of non-overlapping grains. The model was used to study effects of pore scale heterogeneity and anisotropy on unsaturated flow and the saturation-pressure relationship. Pore scale anisotropy was created by using co-oriented non overlapping elliptical grains, and heterogeneity was created by inserting a micro-fracture in the middle of the porous domain consisting of non-overlapping circular grains. The effect of wetting fluid properties on drainage was also investigated. Capillary-pressure saturation curves resulting from fluid drainage through boundaries parallel and perpendicular the fracture alignment were qualitatively similar to those observed in gap-graded sediments with bimodal grain-size and pore-size distributions. Those derived from drainage on a boundary oriented perpendicular to particle and fracture alignment were qualitatively similar to those for mono-modal pore-size distributions. It is shown that pore-scale heterogeneity and anisotropy can gave rise to capillary pressure-saturation relationships and entry (bubbling) pressures that depend on flow direction suggesting that these properties should be described by tensor rather than scalar quantities.

Tartakovsky, Alexandre M.; Ward, Anderson L.; Meakin, Paul

2007-10-01T23:59:59.000Z

302

Guidelines for Secure Use of Social Media by Federal Departments...  

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

Guidelines for Secure Use of Social Media by Federal Departments and Agencies Guidelines for Secure Use of Social Media by Federal Departments and Agencies Guidelines for Secure...

303

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

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

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

304

A Reaction-Transport Model for Calcite Precipitation andEvaluation of Infiltration Fluxes in unsaturated fractured rock  

Science Conference Proceedings (OSTI)

The percolation flux in the unsaturated zone (UZ) is an important parameter addressed in site characterization and flow and transport modeling of the potential nuclear-waste repository at Yucca Mountain, NV, USA. The US Geological Survey (USGS) has documented hydrogenic calcite abundances in fractures and lithophysal cavities at Yucca Mountain to provide constraints on percolation fluxes in the UZ. The purpose of this study was to investigate the relationship between percolation flux and measured calcite abundances using reactive transport modeling. Our model considers the following essential factors affecting calcite precipitation: (1) infiltration, (2) the ambient geothermal gradient, (3) gaseous CO2 diffusive transport and partitioning in liquid and gas phases, (4) fracture matrix interaction for water flow and chemical constituents, and (5) water rock interaction. Over a bounding range of 2 20 mm/year infiltration rate, the simulated calcite distributions capture the trend in calcite abundances measured in a deep borehole (WT-24) by the USGS. The calcite is found predominantly in fractures in the welded tuffs, which is also captured by the model simulations. Simulations showed that from about 2 to 6 mm/year, the amount of calcite precipitated in the welded Topopah Spring tuff is sensitive to the infiltration rate. This dependence decreases at higher infiltration rates owing to a modification of the geothermal gradient from the increased percolation flux. The model also confirms the conceptual model for higher percolation fluxes in the fractures compared to the matrix in the welded units, and the significant contribution of Ca from water rock interaction. This study indicates that reactive transport modeling of calcite deposition can yield important constraints on the unsaturated zone infiltration-percolation flux and provide useful insight into processes such as fracture matrix interaction as well as conditions and parameters controlling calcite deposition.

Xu, Tianfu; Sonnenthal, Eric; Bodvarsson, Gudmundur

2001-06-15T23:59:59.000Z

305

Gas fluidized-bed stirred media mill  

DOE Patents (OSTI)

A gas fluidized-bed stirred media mill is provided for comminuting solid ticles. The mill includes a housing enclosing a porous fluidizing gas diffuser plate, a baffled rotor and stator, a hollow drive shaft with lateral vents, and baffled gas exhaust exit ports. In operation, fluidizing gas is forced through the mill, fluidizing the raw material and milling media. The rotating rotor, stator and milling media comminute the raw material to be ground. Small entrained particles may be carried from the mill by the gas through the exit ports when the particles reach a very fine size.

Sadler, III, Leon Y. (Tuscaloosa, AL)

1997-01-01T23:59:59.000Z

306

Berkeley Lab View -- March 28, 2008  

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

March 28th, 2008 Search the View Archive March 28th, 2008 Search the View Archive State of the Lab: New Initiatives, Construction Daniel Chemla (1940-2008): A Remembrance of His Career The View is Going Green DOE Excellence Award to Foundry Project Team Berkeley Lab View Here Comes BELLA: The BErkeley Lab Laser Acceleration Project Berkeley Lab Science Roundup State of the Lab: New Initiatives, Construction By Lynn Yarris image Photo by Roy Kaltschmidt, CSO Free electron lasers with attosecond capabilities, a high-energy electron accelerator less than a meter in length, the arrival of NERSC-6 and the departure of GELCO-4 were some of the highlights of Berkeley Lab Director Steve Chu's State-of-the-Lab address, which he delivered at the Building 50 Auditorium during the noon hour on March 10, with simulcast to the

307

Lake View Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Lake View Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Lake View Geothermal Facility General Information Name Lake View Geothermal Facility Facility Lake View Sector Geothermal energy Location Information Location The Geysers, California Coordinates 38.823527148671°, -122.78173327446° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.823527148671,"lon":-122.78173327446,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

308

Incorporating video into Google Mobile Street View  

E-Print Network (OSTI)

Mobile Street View is a compelling application but suffers from significant latency problems, especially in limited bandwidth circumstances. Currently, the application uses static images to display street level information. ...

Wright, Christina (Christina E.)

2010-01-01T23:59:59.000Z

309

A common-view disciplined oscillator  

SciTech Connect

This paper describes a common-view disciplined oscillator (CVDO) that locks to a reference time scale through the use of common-view global positioning system (GPS) satellite measurements. The CVDO employs a proportional-integral-derivative controller that obtains near real-time common-view GPS measurements from the internet and provides steering corrections to a local oscillator. A CVDO can be locked to any time scale that makes real-time common-view data available and can serve as a high-accuracy, self-calibrating frequency and time standard. Measurement results are presented where a CVDO is locked to UTC(NIST), the coordinated universal time scale maintained at the National Institute of Standards and Technology in Boulder, Colorado.

Lombardi, Michael A. [Time and Frequency Division, National Institute of Standards and Technology (NIST), Boulder, Colorado 80305 (United States); Dahlen, Aaron P. [Loran Support Unit, United States Coast Guard (USCG), Wildwood, New Jersey 08260 (United States)

2010-05-15T23:59:59.000Z

310

A view-sequential 3D display  

E-Print Network (OSTI)

This thesis outlines the various techniques for creating electronic 3D displays and analyzes their commercial potential. The thesis argues for the use of view-sequential techniques in the design of 3D displays based on ...

Cossairt, Oliver S. (Oliver Strider), 1978-

2003-01-01T23:59:59.000Z

311

The new option view of investment  

E-Print Network (OSTI)

This paper provides a simple introduction to the new option view of investment. We explain the shortcomings of the orthodox theory, and then outline the basic ideas behind the option framework. Several industry examples ...

Dixit, Avinash K.

1995-01-01T23:59:59.000Z

312

Influence and passivity in social media  

Science Conference Proceedings (OSTI)

The ever-increasing amount of information flowing through Social Media forces the members of these networks to compete for attention and influence by relying on other people to spread their message. A large study of information propagation within Twitter ...

Daniel M. Romero; Wojciech Galuba; Sitaram Asur; Bernardo A. Huberman

2011-09-01T23:59:59.000Z

313

Video Stores, Media Technologies, and Memory  

E-Print Network (OSTI)

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

Wilken, Rowan

2010-01-01T23:59:59.000Z

314

Large scale rich media information search  

Science Conference Proceedings (OSTI)

In recent years, the emergence of online social network and other web applications is dramatically changing how rich media information is accessed and presented, how knowledge is processed and extracted, and how business can be conducted. Characteristics ...

Zhiyong Cheng; Jialie Shen

2010-09-01T23:59:59.000Z

315

Social media analytics in business intelligence applications  

E-Print Network (OSTI)

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

Lo, Bobby

2008-01-01T23:59:59.000Z

316

SLAC National Accelerator Laboratory - Media Resources  

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

about the laboratory. If you don't find what you need on this page, please contact the SLAC Media Relations Manager: Andy Freeberg afreeberg@slac.stanford.edu 650-926-4359 LATEST...

317

WIPP - Passive Institutional Controls (PICs) Media  

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

Media Los Angeles Times An Alert Unlike Any Other Interactive feature from LA Times story Weekend America Radio sound file U.S. News Village Voice Las Vegas Review Journal...

318

Dealing with the media: A cautionary tale  

Science Conference Proceedings (OSTI)

Go to the Turner Classic Movies website and you will find this statement: "We have the following four movies starring Larry Johnson available." Dealing with the media: A cautionary tale Inform Magazine Inform Archives News Dealing w

319

Fabrication and application of patterned magnetic media  

E-Print Network (OSTI)

In order to overcome the superparamagnetism in thin film magnetic recording media, a novel magnetic medium, called patterned medium, is studied here as a potential candidate for the future hard disk storage application. ...

Yao, Guhua

2006-01-01T23:59:59.000Z

320

Analysis of light transport in scattering media  

E-Print Network (OSTI)

We propose a new method to analyze light transport in homogeneous scattering media. The incident light undergoes multiple bounces in translucent objects, and produces a complex light field. Our method analyzes the light ...

Mukaigawa, Yasuhiro

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Multiphase flow in fractured porous media  

Science Conference Proceedings (OSTI)

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

Firoozabadi, A.

1995-02-01T23:59:59.000Z

322

Producing media knowledge : an exploration of the instructional landscape in Austin High School media production classes.  

E-Print Network (OSTI)

??This thesis is an exploratory study of media production classes in Austin, Texas. Through examination of Texas state standards, lesson plans, and interviews with educators, (more)

Darland, Daniel Charles

2010-01-01T23:59:59.000Z

323

Free media consolidation in Eastern Europe: Citizen attitudes about political, legal, and economic media freedom.  

E-Print Network (OSTI)

??Over the past half-century, scholars have identified an array of institutional factors that engender free media systems, but have failed to acknowledge the role of (more)

Stoycheff, Elizabeth L

2013-01-01T23:59:59.000Z

324

MediaWiki:Edit | Open Energy Information  

Open Energy Info (EERE)

source View New Pages Recent Changes All Special Pages Semantic SearchQuerying Get Involved Help Apps Datasets Community Login | Sign Up Search Message Edit Facebook icon Twitter...

325

Derivation of effective macroscopic Stokes-Cahn-Hilliard equations for periodic immiscible flows in porous media  

E-Print Network (OSTI)

Using thermodynamic and variational principles we examine a basic phase field model for a mixture of two incompressible fluids in strongly perforated domains. With the help of the multiple scale method with drift and our recently introduced splitting strategy for Ginzburg-Landau/Cahn-Hilliard type equations [1], we rigorously derive an effective macroscopic phase field formulation under the assumption of periodic flow and a sufficiently large Peclet number. As for classical convection-diffusion problems, we obtain systematically diffusion-dispersion relations (including Taylor-Aris-dispersion). Our results also provide a convenient computational framework to macroscopically track interfaces in porous media. In view of the well-known versatility of phase field models, our study proposes a promising model for many engineering and scientific applications such as multiphase flows in porous media, microfluidics, and fuel cells.

Schmuck, Markus; Kalliadasis, Serafim

2012-01-01T23:59:59.000Z

326

Derivation of effective macroscopic Stokes-Cahn-Hilliard equations for periodic immiscible flows in porous media  

E-Print Network (OSTI)

Using thermodynamic and variational principles we examine a basic phase field model for a mixture of two incompressible fluids in strongly perforated domains. With the help of the multiple scale method with drift and our recently introduced splitting strategy for Ginzburg-Landau/Cahn-Hilliard-type equations [Schmuck et al., Proc. R. Soc. A 468:3705-3724, 2012.], we rigorously derive an effective macroscopic phase field formulation under the assumption of periodic flow and a sufficiently large P\\'eclet number. As for classical convection-diffusion problems, we obtain systematically diffusion-dispersion relations (including Taylor-Aris-dispersion). Our results also provide a convenient analytical and computational framework to macroscopically track interfaces in porous media. In view of the well-known versatility of phase field models, our study proposes a promising model for many engineering and scientific applications such as multiphase flows in porous media, microfluidics, and fuel cells.

Markus Schmuck; Marc Pradas; Gregorios A. Pavliotis; Serafim Kalliadasis

2012-10-23T23:59:59.000Z

327

Media pluralism and the overlapping instruments needed to achieve it  

Science Conference Proceedings (OSTI)

The authors review recent scholarly and policy initiatives in respect of media pluralism and argue that contradictions between policy objectives, in analytical approaches and deficiencies in some established methodologies mean that robust conclusions ... Keywords: Economics of media, International Communications, Internet, Media ownership, Policy and law (media systems), Public service broadcasting

Richard Collins, Martin Cave

2013-05-01T23:59:59.000Z

328

Testing alternative models of individuals' social media involvement and satisfaction  

Science Conference Proceedings (OSTI)

This study extends the Technology Acceptance Model 3 (TAM 3) within the context of the rapidly evolving area of social media. Since social media requires the user's active participation and processing of information as well as the creation of user-generated ... Keywords: Involvement, Social media sites, Social media usage intention, TAM 3, Three alternative models, User satisfaction

Jeen-Su Lim, Abdulrahman Al-Aali, John H. Heinrichs, Kee-Sook Lim

2013-11-01T23:59:59.000Z

329

Digital commemoration: surveying the social media revival of historical crises  

Science Conference Proceedings (OSTI)

Social media has facilitated coordination efforts to help save lives, but are people using social media after the emergency phase? To answer this question, the author conducted a study surveying the social media revival of 111 crisis events that occurred ... Keywords: commemoration, crisis informatics, cyberinfrastructure, social media, survey, web sphere

Sophia B. Liu

2011-05-01T23:59:59.000Z

330

Dynamic resource allocation for cloud-based media processing  

Science Conference Proceedings (OSTI)

As an economic and scalable solution of providing interactive and adaptive media content across different devices, cloud-based media processing has recently attracted lots of attention from both academic and industry. Within a media cloud, a large number ... Keywords: cloud-based media processing, machine learning, platform-as-a-service, quality of service, resource allocation

Krisantus Sembiring; Andreas Beyer

2013-02-01T23:59:59.000Z

331

Energy Use in Chinese Buildings: Views of an Outsider Looking...  

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

Energy Use in Chinese Buildings: Views of an Outsider Looking In Energy Use in Chinese Buildings: Views of an Outsider Looking In Energy Use in Chinese Buildings: Views of an...

332

Vehicle Technologies Office: Information for Members of Media  

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

Information for Members Information for Members of Media to someone by E-mail Share Vehicle Technologies Office: Information for Members of Media on Facebook Tweet about Vehicle Technologies Office: Information for Members of Media on Twitter Bookmark Vehicle Technologies Office: Information for Members of Media on Google Bookmark Vehicle Technologies Office: Information for Members of Media on Delicious Rank Vehicle Technologies Office: Information for Members of Media on Digg Find More places to share Vehicle Technologies Office: Information for Members of Media on AddThis.com... Vehicle Technologies News Blog Newsletters Information for Media Subscribe to News Updates Information for Members of Media The Vehicle Technologies Office provides press releases, photos, videos, and contact information for members of the media to cover Vehicle

333

Valley View Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Wind Farm Wind Farm Jump to: navigation, search Name Valley View Wind Farm Facility Valley View Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Juhl Wind Developer Valley View Transmission Energy Purchaser Xcel Energy Location Outside Chandler MN Coordinates 43.905808°, -96.020508° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.905808,"lon":-96.020508,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

334

Business Apps List View | Data.gov  

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

Apps List View Apps List View BusinessUSA Data/Tools Apps Challenges Let's Talk BusinessUSA You are here Data.gov » Communities » BusinessUSA List View Showing 1 - 12 of 12 results. Resources sort ascending Type Last Updated On Traveling Entrepreneur Find green government opportunities for small businesses. The app based on your current location retrieves all the government programs and then allows you to share your favorite program on Facebook. Mobile 02/01/2012 Small Business Toolkit Small Business Toolbox provides a way to easily keep up-to-date on government programs, grants, awards, solicitations, and small business programs. Find the closest SBA district office, easily gathering license and permit information. Mobile 01/31/2012 SBIR.gov Awards Search This app allows users to search the SBIR awards database by agency, keyword, and year.

335

states apps list view | Data.gov  

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

states apps list view states apps list view States Data Apps Challenges Policies States You are here Data.gov » Communities » States List View Showing 1 - 5 of 5 results. Resources sort ascending Type Last Updated On TrashBackwards Trash Backwards will connect you with current recycling information, Do It Yourself reuse and upcycle tutorials that are easy to follow, reliable articles and infographics, upcycled products and durable alternatives to common single-use items, and links to non-profits and other groups who will benefit greatly from the stuff you're done with. Currently includes Massachusetts and Washington. Apps 02/27/2013 MoDOT's Traveler Information Map App With the launch of MoDOT's new Traveler Information Map mobile app, Missouri travelers can get the latest information on road conditions, work zones, flooding and incidents on their iPhones and Androids. Mobile 05/22/2013

336

Infrared absorption measurements of the kinetics of Cl atom reactions with C{sub 3}H{sub n} (n=4,6) unsaturated hydrocarbons between 300-850 K  

Science Conference Proceedings (OSTI)

The reaction of chlorine (Cl) atoms with the unsaturated C{sub 3}H{sub n} where n=4,6, hydrocarbons propylene, allene, and methyl acetylene have been uninvestigated as a function of temperature and pressure.

Farrell, J.T.; Pilgrim, J.S.; Taatjes, C.A.

1997-08-01T23:59:59.000Z

337

Fluid Flow Within Fractured Porous Media  

Science Conference Proceedings (OSTI)

Fractures provide preferential flow paths to subterranean fluid flows. In reservoir scale modeling of geologic flows fractures must be approximated by fairly simple formulations. Often this is accomplished by assuming fractures are parallel plates subjected to an applied pressure gradient. This is known as the cubic law. An induced fracture in Berea sandstone has been digitized to perform numerical flow simulations. A commercially available computational fluid dynamics software package has been used to solve the flow through this model. Single phase flows have been compared to experimental works in the literature to evaluate the accuracy with which this model can be applied. Common methods of fracture geometry classification are also calculated and compared to experimentally obtained values. Flow through regions of the fracture where the upper and lower fracture walls meet (zero aperture) are shown to induce a strong channeling effect on the flow. This model is expanded to include a domain of surrounding porous media through which the flow can travel. The inclusion of a realistic permeability in this media shows that the regions of small and zero apertures contribute to the greatest pressure losses over the fracture length and flow through the porous media is most prevalent in these regions. The flow through the fracture is shown to be the largest contributor to the net flow through the media. From this work, a novel flow relationship is proposed for flow through fractured media.

Crandall, D.M.; Ahmadi, G. (Clarkson Univ., Potsdam, NY); Smith, D.H.; Bromhal, G.S.

2006-10-01T23:59:59.000Z

338

Media Ownership Workshop on Diversity Issues  

E-Print Network (OSTI)

I appreciate the opportunity to speak with you all this morning, particularly since I seem to be the only non?attorney in the line?up. My training is in social science research. For two decades I have been concerned with examining the dynamic relationship of women and people of color to the news and other media. With me today are two of my colleagues, Professor Reggie Miles and Dr. Yong Jin Park. We are part of a research collaborative called the Howard Media Group, and, thus, my comments represent our shared concern, hope, and suggestions for how the Commission might proceed toward its quadrennial review of womens and minorities media ownership. We will leave it for our legal scholars today to speak to the finer points of the policies and laws regarding constitutional issues, while we try to identify some related social questions that we believe research needs to address. My remarks today focus specifically on broadcast stations. Media ownership in the United States today divides along the historical fault lines of gender and race. The low single?digit ownership rates for women and people of color in broadcast say quite loudly that the nation is faced with both a womens rights and civil rights crisis in policy. The seriousness of the situation must be understood within the context of a nation moving rapidly toward racial and ethnic plurality, with no group having a majority. The media today do not and cannot serve the public interest

Carolyn M. Byerly

2010-01-01T23:59:59.000Z

339

Well test analysis in fractured media  

DOE Green Energy (OSTI)

The behavior of fracture systems under well test conditions and methods for analyzing well test data from fractured media are investigated. Several analytical models are developed to be used for analyzing well test data from fractured media. Numerical tools that may be used to simulate fluid flow in fractured media are also presented. Three types of composite models for constant flux tests are investigated. These models are based on the assumption that a fracture system under well test conditions may be represented by two concentric regions, one representing a small number of fractures that dominates flow near the well, and the other representing average conditions farther away from the well. Type curves are presented that can be used to find the flow parameters of these two regions and the extent of the inner concentric region. Several slug test models with different geometric conditions that may be present in fractured media are also investigated. A finite element model that can simulate transient fluid flow in fracture networks is used to study the behavior of various two-dimensional fracture systems under well test conditions. A mesh generator that can be used to model mass and heat flow in a fractured-porous media is presented.

Karasaki, K.

1987-04-01T23:59:59.000Z

340

Well test analysis in fractured media  

DOE Green Energy (OSTI)

In this study the behavior of fracture systems under well test conditions and methods for analyzing well test data from fractured media are investigated. Several analytical models are developed to be used for analyzing well test data from fractured media. Numerical tools that may be used to simulate fluid flow in fractured media are also presented. Three types of composite models for constant flux tests are investigated. Several slug test models with different geometric conditions that may be present in fractured media are also investigated. A finite element model that can simulate transient fluid flow in fracture networks is used to study the behavior of various two-dimensional fracture systems under well test conditions. A mesh generator that can be used to model mass and heat flow in a fractured-porous media is presented. This model develops an explicit solution in the porous matrix as well as in the discrete fractures. Because the model does not require the assumptions of the conventional double porosity approach, it may be used to simulate cases where double porosity models fail.

Karasaki, K.

1986-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Colloid Transport and Deposition in Water-Saturated and Unsaturated Sand and Yucca Mountain Tuff: Effect of Ionic Strength and Moisture Saturation  

Science Conference Proceedings (OSTI)

Colloid-aided radionuclide transport has been considered a potentially important mechanism for the candidate spent fuel and high level waste (HLW) repository at Yucca Mountain. This mechanism, however, has not been treated in Yucca Mountain Total System Performance Assessments (TSPAs) until recently. Even then there has been little discussion of possible colloid retention in the unsaturated zone. This report summarizes investigations of potential colloid retention in sand and Yucca Mountain tuff as a fun...

1999-12-03T23:59:59.000Z

342

User`s Guide: Database of literature pertaining to the unsaturated zone and surface water-ground water interactions at the Idaho National Engineering Laboratory  

SciTech Connect

Since its beginnings in 1949, hydrogeologic investigations at the Idaho National Engineering Laboratory (INEL) have resulted in an extensive collection of technical publications providing information concerning ground water hydraulics and contaminant transport within the unsaturated zone. Funding has been provided by the Department of Energy through the Department of Energy Idaho Field Office in a grant to compile an INEL-wide summary of unsaturated zone studies based on a literature search. University of Idaho researchers are conducting a review of technical documents produced at or pertaining to the INEL, which present or discuss processes in the unsaturated zone and surface water-ground water interactions. Results of this review are being compiled as an electronic database. Fields are available in this database for document title and associated identification number, author, source, abstract, and summary of information (including types of data and parameters). AskSam{reg_sign}, a text-based database system, was chosen. WordPerfect 5.1{copyright} is being used as a text-editor to input data records into askSam.

Hall, L.F.

1993-05-01T23:59:59.000Z

343

Sharing the viewing experience through second screens  

Science Conference Proceedings (OSTI)

Despite the ever expanding forms of digital entertainment and the emergence of consumer recording facilities, allowing viewers to time shift their TV viewing habits, there are still certain TV shows and events that create an audience desire to be part ... Keywords: interactive, mobile, narrative, performance, second screen, shared experience, television, twitter

Mark Lochrie; Paul Coulton

2012-07-01T23:59:59.000Z

344

Book review A Clear View of  

E-Print Network (OSTI)

Magazine R1 Book review A Clear View of the Cell Cycle James E. Ferrell, Jr. The Cell Cycle." It was a timely book, coming right on the heels of the discovery that cyclin-dependent kinases (Cdks) drive cell book. Enter "The Cell Cycle: Principles of Control", by David Morgan, just published by New Science

345

DOE Solar Decathlon: News Blog » Media  

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

Media Media Below you will find Solar Decathlon news from the Media archive, sorted by date. Vote for Solar Decathlon in TreeHugger's Readers' Choice Awards Thursday, March 31, 2011 By Amy Vaughn The Solar Decathlon teams have been nominated for a TreeHugger's Readers' Choice Award-and they need your vote to win. TreeHugger, part of Discovery's Planet Green initiative, is asking its readers to vote for "the people, ideas, projects, and memes that are pushing green into the mainstream" as part of its Readers' Choice Awards Best of Green 2011. The Solar Decathlon teams have been nominated as a group in the Design and Architecture category. Please cast your vote for the Solar Decathlon teams as Best Student Architecture Work today. Voting ends at 11:59 p.m. EDT on Friday, April 1,

346

Historical Media | Y-12 National Security Complex  

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

Historical Media Historical Media Historical Media Image of Y-12 Bulletin dated August 16, 1949 The Y-12 Bulletin was published weekly between May 1947 and sometime in the 1980s. Select a year and a month at right and then click "Retrieve" to bring back links to Adobe PDF files of bulletins printed during that time. Image of T.E.C. Bulletin dated April 1, 1946 T.E.C. Bulletin "A newspaper for the men and women of the Clinton Engineer Works-Tennessee Eastman Corporation" (PDF). Dated Monday, April 1, 1946. (Size: 3 MB) Image of John Googin Employees' Guidebook "Things you will want to know about your job at Clinton Engineer Works, Tennessee Eastman Company" (PDF). Printed about 1944. (Size: 4.8 MB) 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961

347

Energy Media Advisories | Department of Energy  

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

Energy.gov » Energy Media Advisories Energy.gov » Energy Media Advisories Energy Media Advisories RSS September 23, 2009 Department of Energy Announces Accelerator Symposium WASHINGTON, D.C. -- On Monday, October 26, the U.S. Department of Energy's Office of Science will host a Symposium on Accelerators for America's Future in Washington, DC. The symposium--drawing participants from science, industry, medicine, and the national security community--will focus on challenges and opportunities in maximizing the potential of next-generation accelerator technologies to energize the U.S. economy, strengthen American competitiveness, and help the nation achieve more in science, industry, medicine, energy and the environment, and national security. previous 6 7 8 9 10 11 12 13 14 next Mission Leadership Staff and Contractors

348

Media Coverage | Y-12 National Security Complex  

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

Media Coverage Media Coverage Media Coverage Lee Bzorgi is named a Pathfinder Research Entrepreneur of the Year by Tech 2020. The Tech 2020 Council's inaugural Pathfinder Research Entrepreneur of the Year award went to Lee Bzorgi, director of the National Security Technology Center at Y-12. Bzorgi shares the award with innovator and entrepreneur, Jimmy Mays, a UT professor of Chemistry with a joint appointment with Oak Ridge National Laboratory. Source: Tech 2020 News Release, Thurs, 4 November 2010. Y-12 researchers garner R&D 100 awards A research chemist and his revolutionary cloth invented to clean surfaces leaving no sticky residue, even down to the nanoscale, have captured a prestigious R&D 100 award, along with three other researchers at the Y-12 National Security Complex. Source: Y-12 News Release, Mon, 21 July 2008.

349

Shock Dynamics in Layered Periodic Media  

E-Print Network (OSTI)

Solutions of constant-coefficient nonlinear hyperbolic PDEs generically develop shocks, even if the initial data is smooth. Solutions of hyperbolic PDEs with variable coefficients can behave very differently. We investigate formation and stability of shock waves in a one-dimensional periodic layered medium by computational study of time-reversibility and entropy evolution. We find that periodic layered media tend to inhibit shock formation. For small initial conditions and large impedance variation, no shock formation is detected even after times much greater than the time of shock formation in a homogeneous medium. Furthermore, weak shocks are observed to be dynamically unstable in the sense that they do not lead to significant long-term entropy decay. We propose a characteristic condition for admissibility of shocks in heterogeneous media that generalizes the classical Lax entropy condition and accurately predicts the formation or absence of shocks in these media.

David I Ketcheson; Randall J. LeVeque

2011-05-14T23:59:59.000Z

350

The view-selection problem has an exponential-time lower bound for conjunctive queries and views  

Science Conference Proceedings (OSTI)

The view-selection problem is to design and materialize a set of views over a database schema, such that the choice of views minimizes the cost of evaluating the selected workload of queries, and the combined size of the materialized views does not exceed ...

Rada Chirkova

2002-06-01T23:59:59.000Z

351

Rich n-heptane and diesel combustion in porous media  

SciTech Connect

Rich n-heptane and diesel flames in two-layer porous media are experimentally investigated in the context of syngas production. The stable operating points of n-heptane reforming have been determined and the mole fractions of H{sub 2}, CO, CO{sub 2} and light hydrocarbons have been measured in the exhaust gas at an equivalence ratio of 2 for different thermal input values. The reformer performance has been assessed also from the point of view of the heat losses and the mixture homogeneity. The pre-vapouriser produces an approximately uniform vapour-air mixture upstream of the flame front. The range of flow rates for stable flames decreased with increasing equivalence ratio. Heat losses were about 10% of the thermal input at high firing rates. A 77.2% of the equilibrium H{sub 2} was achieved at a flame speed of 0.82 m/s. The same reactor with a different porous matrix for the reforming stage demonstrates diesel reforming to syngas with a conversion efficiency of 77.3% for a flame speed of 0.65 m/s. (author)

Pastore, A.; Mastorakos, E. [Department of Engineering, University of Cambridge, Cambridge CB2 1PZ (United Kingdom)

2010-04-15T23:59:59.000Z

352

Mesoscopic simulations of phase distribution effects on the effective thermal conductivity of microgranular porous media  

E-Print Network (OSTI)

will be weakened. For multiphase porous media, the degree ofmicrostructures of multiphase porous media with emphasis onmaterials [38,39]. For multiphase porous media systems ( n ?

Wang, Moran Dr.; Pan, Ning; Wang, Jinku; Chen, Shiyi

2007-01-01T23:59:59.000Z

353

Analytical Solution to the Riemann Problem of Three-Phase Flow in Porous Media  

E-Print Network (OSTI)

properties governing multiphase ?ow in porous media. Waterof multicomponent, multiphase displacement in porous media.e?ects We study multiphase ?ow in porous media under the

Juanes, Ruben; Patzek, Tadeusz W.

2002-01-01T23:59:59.000Z

354

Polarization of Cerenkov radiation in anisotropic media  

SciTech Connect

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

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

1995-10-01T23:59:59.000Z

355

Transformation Optics in Nonvacuum Initial Dielectric Media  

E-Print Network (OSTI)

Previous formulations of transformation optics have generally been restricted to transformations from relatively simple initial media, such as the vacuum, because of limitations due to their non-covariance. I show that a completely covariant approach enables arbitrary transformations from arbitrarily complex initial linear dielectrics.

Thompson, Robert T

2010-01-01T23:59:59.000Z

356

Investigating Bias and Incentives in Social Media  

E-Print Network (OSTI)

in social media data · I'll touch on population biases · but spend more time on self-reporting bias. #12 by 1M users from Aug 2010 and Nov 2011 #12;A rumor "#verfollow I confirm that in the school 'Jorge & Semaan 2010; Monroy-Hernandez et al. 2012 · Public Sentiment · Political and election indices, market

Hunt, Galen

357

Everyday serendipity as described in social media  

Science Conference Proceedings (OSTI)

Serendipity has received much attention from library and information science, psychology, and computer science. Yet not much is known about serendipity in the context of everyday information behavior. In general, a key challenge in the study of serendipity ... Keywords: everyday information behavior, research methods, serendipity, social media

Victoria L. Rubin; Jacquelyn Burkell; Anabel Quan-Haase

2010-10-01T23:59:59.000Z

358

Multiple scattering of light in superdiffusive media  

E-Print Network (OSTI)

Light transport in superdiffusive media of finite size is studied theoretically. The Green's function of the problem is found by discretizing the fractional diffusion equation and employing the eigenfunction expansion method. Truncated step length distributions and complex boundary conditions are considered. As an example we calculate the weak localization effect in the superdiffusion approximation.

Bertolotti, Jacopo; Wiersma, Diederik S

2010-01-01T23:59:59.000Z

359

consumer apps list view | Data.gov  

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

consumer apps list view consumer apps list view Consumer Data Apps Challenges Resources About Blogs Let's Talk Feedback Consumer You are here Data.gov » Communities » Consumer Smart Disclosure Apps This page highlights apps and websites that use Smart Disclosure-style data to empower consumers to make better informed choices. The purpose is to illustrate the kinds of innovative apps-web- and mobile-based-that Smart Disclosure can fuel. The galleries below include both government-produced apps and apps created by innovators outside government that have won Federal challenges. Showing 1 - 19 of 19 results. Resources sort ascending Type Last Updated On Smart Traveler Smart Traveler, the official State Department app for U.S. travelers, invites you to see the world with easy access to frequently updated official country information, travel alerts, travel warnings, maps, U.S. embassy locations, and more. Mobile 09/14/2012

360

SOAJ Search : Main View : Deep Federated Search  

Office of Scientific and Technical Information (OSTI)

SOAJ Search SOAJ Search Search Powered By Deep Web Technologies New Search Preferences Powered by Deep Web Technologies HOME ABOUT ADVANCED SEARCH CONTACT US HELP Science Open Access Journals (SOAJ) Science Open Access Journals Main View This view is used for searching all possible sources. Additional Information Keyword: Title: Additional Information Author: Fields to Match: All Any Field(s) Additional Information Date Range: Beginning Date Range Pick Year 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 toEnding Date Range Pick Year 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 DWT Logo Search Clear All Help Simple Search Select All

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Reasearch apps list view | Data.gov  

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

Reasearch apps list view Reasearch apps list view Research Menu Data/Tools Apps Resources Let's Talk Research Alpha You are here Data.gov » Communities » Research Applications Showcase Showing 1 - 6 of 6 results. Resources sort ascending Type Last Updated On Wireless Spectrum Research & Development Senior Steering Group's Testbed Information Portal The Wireless Spectrum Research & Development Senior Steering Group's Testbed Information Portal provides information about spectrum testing facilities to government, academic, and industry researchers in need of such facilities. Apps 11/20/2012 The R&D Dashboard The R&D Dashboard beta website provides an initial look at U.S. Federal investments in science and research from two agencies: the National Institutes of Health (NIH) and the National Science Foundation (NSF) from years 2000-2009. The R&D Dashboard will expand in a future iteration to include ALL Federal research and development spending and expanded information on outputs. Apps 11/20/2012

362

Sanraa Media Limited India formerly Sanra Software | Open Energy  

Open Energy Info (EERE)

Sanraa Media Limited India formerly Sanra Software Sanraa Media Limited India formerly Sanra Software Jump to: navigation, search Name Sanraa Media Limited India (formerly Sanra Software) Place Chennai, Tamil Nadu, India Zip 600096 Sector Solar Product Chennai-based media and entertainment firm. Through its joint venture with Sanyo Gulf, the firm is planning to foray into solar power. References Sanraa Media Limited India (formerly Sanra Software)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Sanraa Media Limited India (formerly Sanra Software) is a company located in Chennai, Tamil Nadu, India . References ↑ "Sanraa Media Limited India (formerly Sanra Software)" Retrieved from "http://en.openei.org/w/index.php?title=Sanraa_Media_Limited_India_formerly_Sanra_Software&oldid=350601

363

Storied navigation : toward media collection-based storytelling  

E-Print Network (OSTI)

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

Shen, Edward Yu-Te

2007-01-01T23:59:59.000Z

364

Corporate Interests: How the News Media Portray the Economy  

E-Print Network (OSTI)

and the State of the Economy. International Journal ofConsent: The Political Economy of the Mass Media. 2d ed. Newthe News Media Portray the Economy CHRISTOPHER J. KOLLMEYER,

Kollmeyer, Christopher J.

2004-01-01T23:59:59.000Z

365

Gender and Media in the Post and Cold War Era  

E-Print Network (OSTI)

csw update: special issue on Thinking Gender 2011! contentste on the 21st TG 2011 Gender and Media Panel review byn the panel entitled, Gender & Media in the Post and Cold

Wright, Julia

2011-01-01T23:59:59.000Z

366

Kids Media Center : BioEnergy Science Center  

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

Kids Media Center Welcome to the Kids Media Center Here are some fun links to different resources about energy: EIA Kids Page - Information on all different kinds of energy -...

367

An nual En ergy Re view 2001  

Gasoline and Diesel Fuel Update (EIA)

An nual En ergy Re view 2001 An nual En ergy Re view 2001 The An nual En ergy Re view (AER) pres ents the En ergy In for ma tion Ad min - is tra tion's his tor i cal en ergy sta tis tics. For many se ries, sta tis tics are given for ev ery year from 1949 through 2001. The sta tis tics, ex pressed in ei ther phys i cal units or Brit ish ther mal units, cover all ma jor en ergy ac tiv i ties, in - clud ing con sump tion, pro duc tion, trade, stocks, and prices, for all ma jor en - ergy com mod i ties, in clud ing fos sil fu els, elec tric ity, and re new able en ergy sources. Pub li ca tion of this re port is re quired un der Pub lic Law 95-91 (De part ment of En ergy Or ga ni za tion Act), Sec tion 205(c), and is in keep ing with re spon - si bil i ties given to the En ergy In for ma tion Ad min is tra tion un der Sec tion

368

Media tables : an extensible method for developing multi-user media interaction platforms for shared spaces  

E-Print Network (OSTI)

As digital entertainment applications evolve, there is a need for new kinds of platforms that can support sociable media interactions for everyday consumers. This thesis demonstrates an extensible method and sensing framework ...

Mazalek, Alexandra, 1976-

2005-01-01T23:59:59.000Z

369

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

SciTech Connect

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

Gastelum, Zoe N.; Whattam, Kevin M.

2013-01-01T23:59:59.000Z

370

Synthetic benchmark for modeling flow in 3D fractured media  

Science Conference Proceedings (OSTI)

Intensity and localization of flows in fractured media have promoted the development of a large range of different modeling approaches including Discrete Fracture Networks, pipe networks and equivalent continuous media. While benchmarked usually within ... Keywords: Benchmark, Fractured media, Single-phase flow, Stochastic model

Jean-Raynald De Dreuzy; GRaldine Pichot; Baptiste Poirriez; Jocelyne Erhel

2013-01-01T23:59:59.000Z

371

Social media futures: why iSchools should care  

Science Conference Proceedings (OSTI)

Social Media Futures was a 3 day charrette at a major university that brought together students with various backgrounds to consider the future impact of social media on business, and to think about what opportunities that might create. However, ... Keywords: charrette, iSchools, information science, multi-disciplinary collaboration, social media

Michael J. Scialdone; Anthony J. Rotolo; Jaime Snyder

2011-02-01T23:59:59.000Z

372

Personalizing game content using audio-visual media  

Science Conference Proceedings (OSTI)

This paper introduces the concept of media-controlled games, where game content is personalized using audio-visual media as an input to the game. Each piece of background music or picture selected by the player makes the game look different and behave ... Keywords: MIDI, audio, games, image-controlled games, media-controlled games, music, musically controlled games, personalization

Jukka Holm; Kai Havukainen; Juha Arrasvuori

2005-06-01T23:59:59.000Z

373

June 2013 Most Viewed Documents for Fission And Nuclear Technologies...  

Office of Scientific and Technical Information (OSTI)

media Xu, Tianfu; Pruess, Karsten (2001) 75 System Definition and Analysis: Power Plant Design and Layout NONE (1996) 68 LWR nuclear fuel bundle data for use in fuel...

374

Mesoscopic predictions of the effective thermal conductivity for microscale random porous media.  

E-Print Network (OSTI)

microstructures of multiphase porous media. A latticeequation with complex multiphase porous geometries, aprobabilities. For multiphase porous media systems ?N ? 3?

Wang, Moran; Wang, Jinku; Pan, Ning; Chen, Shiyi

2007-01-01T23:59:59.000Z

375

Upscaling solute transport in naturally fractured porous media with the continuous time random walk method  

E-Print Network (OSTI)

fracture model for multiphase ?ow in porous media. AIChEsingle- and multiphase transport in fractured porous media

Geiger, S.

2012-01-01T23:59:59.000Z

376

Theoretical Studies of Non-Newtonian and Newtonian Fluid Flow through Porous Media  

E-Print Network (OSTI)

for Modeling Fluid and Heat Flow in Fractured Porous Media,"Newtonian fluid flow through porous or fractured media. The

Wu, Y.S.

1990-01-01T23:59:59.000Z

377

OpenEI:Neutral point of view | Open Energy Information  

Open Energy Info (EERE)

given to minor points of view. Neutral point of view is a principal core policy of the OpenEI platform. For further information, please refer to our model for this policy,...

378

JOBAID-VIEWING AN EMPLOYEE MATRIX (SUPERVISOR) | Department of...  

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

VIEWING AN EMPLOYEE MATRIX (SUPERVISOR) JOBAID-VIEWING AN EMPLOYEE MATRIX (SUPERVISOR) The purpose of this job aid is to guide supervisor users through the step-by-step process of...

379

DOE Solar Decathlon: News Blog » Media  

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

'Media' 'Media' Vote for Solar Decathlon in TreeHugger's Readers' Choice Awards Thursday, March 31, 2011 By Amy Vaughn The Solar Decathlon teams have been nominated for a TreeHugger's Readers' Choice Award-and they need your vote to win. TreeHugger, part of Discovery's Planet Green initiative, is asking its readers to vote for "the people, ideas, projects, and memes that are pushing green into the mainstream" as part of its Readers' Choice Awards Best of Green 2011. The Solar Decathlon teams have been nominated as a group in the Design and Architecture category. Please cast your vote for the Solar Decathlon teams as Best Student Architecture Work today. Voting ends at 11:59 p.m. EDT on Friday, April 1, 2011. Amy Vaughn is the U.S. Department of Energy Solar Decathlon Web

380

Flow of particle suspensions through porous media  

DOE Green Energy (OSTI)

A new attempt is made to study the mechanisms of particle invasions into porous media. The following subjects are described: A critical survey of the literature indicating that the mechanism of particle invasions is not known in sufficient detail. The pros and cons of existing particle measuring devices are briefly described. Results from a new laboratory study on particle characterizations are given. The results of the laboratory studies on the flow of particle suspensions through porous media (up to 200 md) are discussed. The effects of flow rate and particle concentrations on the amount of damage (i.e., permeability impairment) and depth of penetration (from core inlet towards outlet) are particularly emphasized. Filter methods (e.g., using millipore filter) cannot be used to determine particle invasions into porous medium. Any predictions of the injection problems based on millipore (or any other filter) measurements are useless and should be discarded.

Vetter, O.J.; Kandarpa, V.; Harouaka, A.

1982-06-22T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Manganese containing layer for magnetic recording media  

DOE Patents (OSTI)

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

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

1999-01-01T23:59:59.000Z

382

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)

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 guidance for land and water resources management. Atmospheric pressure and water table fluctuations are two important natural processes at the upper and lower boundaries of the unsaturated zone, respectively. However, their significance has been neglected in previous studies. This dissertation systematically investigates their influence on the gas phase flow and transport of VOCs in soil and ground water remediation processes using analytically and numerically mathematical modeling. New semi-analytical and numerical solutions are developed to calculate the subsurface gas flow field and the gas phase transport of VOCs in active soil vapor extraction (SVE), barometric pumping (BP) and natural attenuation taking into account the atmospheric pressure and the water table fluctuations. The accuracy of the developed solutions are checked by comparing with published analytical solutions under extreme conditions, newly developed numerical solutions in COMSOL Multiphysics and field measured data. Results indicate that both the atmospheric pressure and the tidal-induced water table fluctuations significantly change the gas flow field in active SVE, especially when the vertical gas permeability is small (less than 0.4 Darcy). The tidal-induced downward moving water table increases the depth-averaged radius of influence (ROI) for the gas pumping well. However, this downward moving water table leads to a greater vertical pore gas velocity away from the gas pumping well, which is unfavorable for removing VOCs. The gas flow rate to/from the barometric pumping well can be accurately calculated by our newly developed solutions in both homogeneous and multi-layered unsaturated zones. Under natural unsaturated zone conditions, the time-averaged advective flux of the gas phase VOCs induced by the atmospheric pressure and water table fluctuations is one to three orders of magnitude less than the diffusive flux. The time-averaged advective flux is comparable with the diffusive flux only when the gas-filled porosity is very small (less than 0.05). The density-driven flux is negligible.

You, Kehua

2013-05-01T23:59:59.000Z

383

Views and Patterns in E-Commerce Application Design  

Science Conference Proceedings (OSTI)

Separation of concerns is a well-established principle in software engineering that supports reuse by hiding complexity through abstraction mechanisms. The Abstract Design Views model was created with reuse in mind and allows the designer to apply separation ... Keywords: abstract design views, design, design patterns, object-oriented relationships, reuse, separation of concerns, software engineering, views

Marcus E. Markiewicz; Carlos J. P. Lucena; Paulo S. C. Alencar; Donald D. Cowan

2002-06-01T23:59:59.000Z

384

Surface-wave solitons between linear media and nonlocal nonlinear media  

Science Conference Proceedings (OSTI)

We address surface solitons at the interface between linear media and nonlocal nonlinear media in the presence of a discontinuity in refractive index at the surface of these two materials. We investigated the influence of the degree of nonlocality on the stability, energy flow, and full width at half-maximum of the surface wave solitons. It is shown that surface solitons will be stable only if the degree of nonlocality exceeds a critical value. We find that the refractive index difference can affect the power distribution of the surface solitons in the two media. Also, different boundary values at the interface can lead to different relative peak positions of the surface solitons. However, neither the refractive index nor the boundary conditions can affect the stability of the solitons, for a given degree of nonlocality.

Shi Zhiwei [Key Laboratory of Photonic Information Technology of Guangdong Higher Education Institutes, South China Normal University, Guangzhou 510631 (China); School of Information Engineering, Guangdong University of Technology, Guangzhou 510006 (China); Li Huagang [Department of Physics, Guangdong Institute of Education, Guangzhou 510303 (China); Guo Qi [Key Laboratory of Photonic Information Technology of Guangdong Higher Education Institutes, South China Normal University, Guangzhou 510631 (China)

2011-02-15T23:59:59.000Z

385

Unsaturated Zone I. Overview  

E-Print Network (OSTI)

waste management program in addition to the site-characterization efforts at Yucca Mountain Upwelling at Yucca Mountain The Board completed its review of material (11 re- ports) first submitted that there is evidence of ongoing, intermittent hydrothermal upwelling at Yucca Mountain and that large earth- quake

386

Mountain View IV | Open Energy Information  

Open Energy Info (EERE)

IV IV Facility Mountain View IV Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner AES Wind Generation Developer AES Wind Generation Energy Purchaser Southern California Edison Co Location White Water CA Coordinates 33.95475187°, -116.7015839° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.95475187,"lon":-116.7015839,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

387

Consumer Views on Transportation and Energy  

DOE Green Energy (OSTI)

This report has been assembled to provide the Office of Energy Efficiency and Renewable Energy (EERE) with an idea of how the American public views various transportation, energy, and environmental issues. An issue that still needs attention from EERE is the finding that the public tends to lack information about hybrid vehicles, hydrogen, and alternative fuels for passenger vehicles. Also, the public seems to want fuel-efficiency improvements and cleaner fuels, but is not very willing to pay for these benefits. The public also says that it supports initiatives to promote energy conservation over increased production and that it is willing to make changes such as driving less in an effort to reduce oil consumption.

Steiner, E.

2003-08-01T23:59:59.000Z

388

Statistics of Extreme Waves in Random Media  

E-Print Network (OSTI)

Waves traveling through random media exhibit random focusing that leads to extremely high wave intensities even in the absence of nonlinearities. Although such extreme events are present in a wide variety of physical systems and the statistics of the highest waves is important for their analysis and forecast, it remains poorly understood in particular in the regime where the waves are highest. We suggest a new approach that greatly simplifies the mathematical analysis and calculate the scaling and the distribution of the highest waves valid for a wide range of parameters.

Jakob J. Metzger; Ragnar Fleischmann; Theo Geisel

2013-11-18T23:59:59.000Z

389

Shock Waves in Weakly Compressed Granular Media  

E-Print Network (OSTI)

We experimentally probe nonlinear wave propagation in weakly compressed granular media, and observe a crossover from quasi-linear sound waves at low impact, to shock waves at high impact. We show that this crossover grows with the confining pressure $P_0$, whereas the shock wave speed is independent of $P_0$ --- two hallmarks of granular shocks predicted recently. The shocks exhibit powerlaw attenuation, which we model with a logarithmic law implying that local dissipation is weak. We show that elastic and potential energy balance in the leading part of the shocks.

Siet van den Wildenberg; Rogier van Loo; Martin van Hecke

2013-04-23T23:59:59.000Z

390

Scalar Quantum Field Theory in Disordered Media  

E-Print Network (OSTI)

A free massive scalar field in inhomogeneous random media is investigated. The coefficients of the Klein-Gordon equation are taken to be random functions of the spatial coordinates. The case of an annealed-like disordered medium, modeled by centered stationary and Gaussian processes, is analyzed. After performing the averages over the random functions, we obtain the two-point causal Green's function of the model up to one-loop. The disordered scalar quantum field theory becomes qualitatively similar to a $\\lambda\\phi^{4}$ self-interacting theory with a frequency-dependent coupling.

Arias, E; Krein, G; Menezes, G; Svaiter, N F

2011-01-01T23:59:59.000Z

391

Associated Media Holdings Inc formerly EL Tigre Development Corp | Open  

Open Energy Info (EERE)

Media Holdings Inc formerly EL Tigre Development Corp Media Holdings Inc formerly EL Tigre Development Corp Jump to: navigation, search Name Associated Media Holdings Inc (formerly EL Tigre Development Corp) Place San Diego, California Zip 92150-2548 Product Engaged in research, development and commercialization of technologies for the production of alternative sources of fuel and the destruction and/or remediation of liquid and solid waste. References Associated Media Holdings Inc (formerly EL Tigre Development Corp)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Associated Media Holdings Inc (formerly EL Tigre Development Corp) is a company located in San Diego, California . References ↑ "Associated Media Holdings Inc (formerly EL Tigre Development

392

Information for Media on Lighting Choices | Department of Energy  

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

Media on Lighting Choices Media on Lighting Choices Information for Media on Lighting Choices July 30, 2012 - 8:25am Addthis Information for Media on Lighting Choices These videos, presentation, and images are available for use by media organizations. The materials are copyright-free, and you are welcome to cite the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy as the source. Public Service Announcements These PSAs educate consumers about saving money on their electric bill with new lighting choices and looking for "lumens," a new way to shop for light bulbs. Two :30 and two :60 audio PSAs are available for your download below. Download Windows Media Player or iTunes. PSA Format Length File Size A New Generation .MP3 0:30 483 KB A New Generation .MP3 1:00

393

MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy  

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

MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy Conference Call MEDIA BRIEFING CONFERENCE CALL: Secretary Chu to Host Solar Energy Conference Call February 4, 2011 - 12:00am Addthis WASHINGTON -TOMORROW, February 4, 2011, Secretary Steven Chu will join with Richard Swanson, President Emeritus of SunPower Corp., to host a media conference call to announce new funding for solar technology and manufacturing projects. Secretary Chu will also release additional details about the Department's SunShot initiative. WHO: Secretary of Energy Steven Chu Richard Swanson, President Emeritus, SunPower Corp. WHEN: Friday, February 4, 2011 12:45 PM EST HOW: For call-in information, interested media should RSVP to Ebony Meeks at ebony.meeks@hq.doe.gov Media contact(s):

394

Evaluation of ITER MSE Viewing Optics  

Science Conference Proceedings (OSTI)

The Motional Stark Effect (MSE) diagnostic on ITER determines the local plasma current density by measuring the polarization angle of light resulting from the interaction of a high energy neutral heating beam and the tokamak plasma. This light signal has to be transmitted from the edge and core of the plasma to a polarization analyzer located in the port plug. The optical system should either preserve the polarization information, or it should be possible to reliably calibrate any changes induced by the optics. This LLNL Work for Others project for the US ITER Project Office (USIPO) is focused on the design of the viewing optics for both the edge and core MSE systems. Several design constraints were considered, including: image quality, lack of polarization aberrations, ease of construction and cost of mirrors, neutron shielding, and geometric layout in the equatorial port plugs. The edge MSE optics are located in ITER equatorial port 3 and view Heating Beam 5, and the core system is located in equatorial port 1 viewing heating beam 4. The current work is an extension of previous preliminary design work completed by the ITER central team (ITER resources were not available to complete a detailed optimization of this system, and then the MSE was assigned to the US). The optimization of the optical systems at this level was done with the ZEMAX optical ray tracing code. The final LLNL designs decreased the ''blur'' in the optical system by nearly an order of magnitude, and the polarization blur was reduced by a factor of 3. The mirror sizes were reduced with an estimated cost savings of a factor of 3. The throughput of the system was greater than or equal to the previous ITER design. It was found that optical ray tracing was necessary to accurately measure the throughput. Metal mirrors, while they can introduce polarization aberrations, were used close to the plasma because of the anticipated high heat, particle, and neutron loads. These mirrors formed an intermediate image that then was relayed out of the port plug with more ideal (dielectric) mirrors. Engineering models of the optics, port plug, and neutral beam geometry were also created, using the CATIA ITER models. Two video conference calls with the USIPO provided valuable design guidelines, such as the minimum distance of the first optic from the plasma. A second focus of the project was the calibration of the system. Several different techniques are proposed, both before and during plasma operation. Fixed and rotatable polarizers would be used to characterize the system in the no-plasma case. Obtaining the full modulation spectrum from the polarization analyzer allows measurement of polarization effects and also MHD plasma phenomena. Light from neutral beam interaction with deuterium gas (no plasma) has been found useful to determine the wavelength of each spatial channel. The status of the optical design for the edge (upper) and core (lower) systems is included in the following figure. Several issues should be addressed by a follow-on study, including whether the optical labyrinth has sufficient neutron shielding and a detailed polarization characterization of actual mirrors.

Allen, S; Lerner, S; Morris, K; Jayakumar, J; Holcomb, C; Makowski, M; Latkowski, J; Chipman, R

2007-03-26T23:59:59.000Z

395

Recovery of Precious Metals from Chloride Media Using Microalgae ...  

Science Conference Proceedings (OSTI)

Presentation Title, Recovery of Precious Metals from Chloride Media Using Microalgae Waste from Biofuel Extraction. Author(s), Katsutoshi Inoue, Kanjana...

396

(Discussion of plastic media blasting): Foreign trip report, 1988  

SciTech Connect

The visit to MBB was to see and discuss the plastic media blasting equipment developed and manufactured as a cooperative effort by Schlick and MBB. The Germans emphasized a systematic approach and complete control over most parameters. The goal is to achieve conditions which do not cause damage to the aircraft. To arrive at the goal the air pressure that delivers the air to entrain the media, the flow rate of media, and the media itself are carefully and accurately controlled. Distance of nozzle and angle of blasting were systematically investigated. The wet (freon) cleanup system under development at Schlick was not discussed.

Gat, U.

1988-07-21T23:59:59.000Z

397

Sequestration in the Media: Changes in Public Perception  

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

Media: Changes in Public Perception Third Annual Conference on Carbon Sequestration Alexandria, VA, May 2-6, 2004 National Energy Technology Laboratory Office of Fossil Energy Phil...

398

A study on media discourse on nuclear energy in China.  

E-Print Network (OSTI)

???The purpose of this paper was to study how the meaning of nuclear power was constructed in pre- and post-Fukushima media discourse in China, and (more)

Chan, Ching-wah.

2012-01-01T23:59:59.000Z

399

Improvisational interaction : a framework for structural exploration of media.  

E-Print Network (OSTI)

??Whenever we use computers to interact with media, our experience is that of direct control, and the goal of our interactions is either artifact-production (the (more)

Nemirovsky, Paul, 1975-

2006-01-01T23:59:59.000Z

400

Towards improved methods for determining porous media multiphase flow functions.  

E-Print Network (OSTI)

??The mathematical modeling and simulation of the flow of fluid through porous media are important in many areas. Relative permeability and capillary pressure functions are (more)

Xue, Song

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Electroosmosis in homogeneously charged micro- and nanoscale random porous media  

E-Print Network (OSTI)

used in generations of multiphase porous structures based onof various multiphase micro porous media including granularfor reproducing multiphase granular porous microstructures [

Wang, Moran; Chen, Shiyi

2007-01-01T23:59:59.000Z

402

Media Coverage - Clean Cities Transportation Workshop for Almaty  

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

Media Coverage Workshops Clean Cities Transportation Workshop for Almaty KZ Workshop Home First Announcement (EN), PDF 288KB First Announcement (RU), PDF 404KB Trainers & Speakers...

403

Impact of Heat Transfer Media on Materials for Concentrated Solar ...  

Science Conference Proceedings (OSTI)

Presentation Title, Impact of Heat Transfer Media on Materials for Concentrated Solar Power. Author(s), Dane Wilson. On-Site Speaker (Planned), Dane Wilson.

404

Cold Culture: Polar Media and the Nazi Occult  

E-Print Network (OSTI)

Polar Media and the Nazi Occult Peter Krapp UC Irvine Filmto the Ultima Thule of occult and racist fantasies about the

Krapp, Peter

2009-01-01T23:59:59.000Z

405

System Design, Analysis, Modeling, and Media Engineering Properties...  

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

modeling and simulations of * various storage systems configurations. Lead the storage system energy analysis and provide * results. Compile and obtain media engineering...

406

High Co2 Emissions Through Porous Media- Transport Mechanisms...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon High Co2 Emissions Through Porous Media- Transport Mechanisms And Implications For Flux Measurement And Fractionation Jump...

407

Technology Commercialization and Partnerships | BSA 08-10: Media ...  

The media and methods of this invention avoids unintended expression and results in ... Wins R&D 100 Awared ... by the Office of Science of the ...

408

MIGRATION OF RADIONUCLIDES THROUGH SORBING MEDIA ANALYTICAL SOLUTION - I  

E-Print Network (OSTI)

centration Phenomenon of Radionuclide Chain Migra- tion", B5only MIGRA'riON OF RADIONUCLIDES THROUGH SORBING MEDIATransport Equation for Radionuclide in Porous Media General

Harada, M.

2013-01-01T23:59:59.000Z

409

Age Inversiones in Media Ambiente AIMA | Open Energy Information  

Open Energy Info (EERE)

Product Invests in projects that aim to generate energy from biodegradable residues and waste. References Age Inversiones in Media Ambiente (AIMA)1 LinkedIn Connections...

410

Contact micromechanics in granular media with clay  

SciTech Connect

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

Ita, S.L.

1994-08-01T23:59:59.000Z

411

MEDIA ROUNDTABLE: Possible impacts of the US EPA Notice of Proposed Rulemaking on the biofuels industry  

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

2 INDUSTRIAL BIOTECHNOLOGY WINTER 2008 2 INDUSTRIAL BIOTECHNOLOGY WINTER 2008 M E D I A R O U N D T A B L E his Roundtable Discussion was held for members of the media to engage with industry experts and gain insight into the proposed (and, as this issue of Industrial Biotechnology went to press, yet-to-be-finalized) EPA Notice of Proposed Rulemaking that would set stringent greenhouse gas emission reduction targets for renew- able fuels. At issue is the methodology employed by EPA, one largely based on assessment of emission effects related to indirect land-use changes for biofuels production, to determine the reduction target requirements for existing and new biofuels. (For context, see letter, p. 332, and Point of View article, p. 334). Industrial Biotechnology gratefully acknowledges the

412

Supply Chain - Additional Market Sectors View Page | Data.gov  

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

Additional Market Sectors View Page Sustainable Supply Chains Submissions Let's Talk About Sustainable Supply Chain You are here Data.gov Communities Sustainable Supply Chain...

413

`Trapped' Ions Provide First View of Light Property  

Science Conference Proceedings (OSTI)

... PHYSICS `Trapped' Ions Provide First View of Light Property. ... Quantum theory states that light can act either as a wave or as a particle. ...

414

September 2013 Most Viewed Documents for Energy Storage, Conversion...  

Office of Scientific and Technical Information (OSTI)

September 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III...

415

The Better Buildings Neighborhood View - December 10, 2013  

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

traditional incandescent bulbs? Consider installing energy efficient compact fluorescent light bulbs (CFLs) in your basement lighting fixtures. Light Neighborhood View to Become...

416

Most Viewed Documents by Subject Category | OSTI, US Dept of...  

Office of Scientific and Technical Information (OSTI)

Viewed Documents by Subject Category Biology and Medicine Chemistry Energy Storage, Conversion, and Utilization Engineering Environmental Sciences Fission and Nuclear Technologies...

417

January 2013 Most Viewed Documents for Energy Storage, Conversion...  

Office of Scientific and Technical Information (OSTI)

January 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Energy Technology Perspectives 2012: Executive Summary Portuguese version NONE Energy...

418

Most Viewed Documents - Energy Storage, Conversion, and Utilization...  

Office of Scientific and Technical Information (OSTI)

Most Viewed Documents - Energy Storage, Conversion, and Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002)...

419

April 2013 Most Viewed Documents for Fossil Fuels | OSTI, US...  

Office of Scientific and Technical Information (OSTI)

Viewed Documents for Fossil Fuels EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS Dr. Jorge Gabitto; Maria Barrufet (2003) 208 Fluid...

420

June 2013 Most Viewed Documents for Renewable Energy Sources...  

Office of Scientific and Technical Information (OSTI)

June 2013 Most Viewed Documents for Renewable Energy Sources Chapter 11. Heat Exchangers Rafferty, Kevin D.; Culver, Gene (1998) 490 Seventh Edition Fuel Cell Handbook NETL (2004)...

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

April 2013 Most Viewed Documents for Renewable Energy Sources...  

Office of Scientific and Technical Information (OSTI)

April 2013 Most Viewed Documents for Renewable Energy Sources Chapter 11. Heat Exchangers Rafferty, Kevin D.; Culver, Gene (1998) 1252 Seventh Edition Fuel Cell Handbook NETL...

422

Conservation and Documentation of New Media Art by Laura Barreca  

E-Print Network (OSTI)

Conservation and Documentation of New Media Art by Laura Barreca The debate around the conservation. In terms of conservation, the strategies applied for painting, sculpture and drawing seem inappropriate of technological devices that make it difficult to provide strategies of conservation for New Media artworks

Qian, Ning

423

A viscoelastic representation of wave attenuation in porous media  

Science Conference Proceedings (OSTI)

The theories developed by White and co-workers describe the complex moduli of a medium partially saturated with spherical gas pockets and those of stratified layers composed of two heterogeneous porous media. A generalization to gas patches of arbitrary ... Keywords: Mesoscopic loss, Porous media, Wave attenuation, Zener model

Stefano Picotti; Jos M. Carcione; J. Germn Rubino; Juan E. Santos; Fabio Cavallini

2010-01-01T23:59:59.000Z

424

Space-variant image coding for stereoscopic media  

Science Conference Proceedings (OSTI)

This paper presents a brief overview of space variant image coding for stereoscopic media and reports on findings from a study using foveation for stereoscopic imaging. Foveation is a perceptually motivated approach to image coding based on the structure ... Keywords: foveation, gazecontingent displays, stereoscopic media, stereoscopic vision, stereoscopic visualization

Arzu ltekin

2009-05-01T23:59:59.000Z

425

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

E-Print Network (OSTI)

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

Dodla, Ramana

426

Poetic augmented reality: place-bound literature in locative media  

Science Conference Proceedings (OSTI)

This paper presents the textopia project, a locative media design experiment set up to explore the relationship between places and literary texts. The system allows a user to walk through the city of Oslo and listen to texts that talk about the ... Keywords: locative media, place-based storytelling, user-generated content

Anders Sundnes Lvlie

2009-09-01T23:59:59.000Z

427

A Study of the Correlation Between Electrical Resistivity and Matric Suction for Unsaturated Ash-Fall Pyroclastic Soils in the Campania Region (Southern Italy)  

E-Print Network (OSTI)

In the territory of the Campania region (southern Italy), critical rainfall events periodically trigger dangerous fast slope movements involving ashy and pyroclastic soils originated by the explosive phases of the Mt. Somma-Vesuvius volcano and deposited along the surrounding mountain ranges. In this paper, an integration of engineering-geological and geophysical measurements is presented to characterize unsaturated pyroclastic samples collected in a test area on the Sarno Mountains (Salerno and Avellino provinces, Campania region). The laboratory analyses were aimed at defining both soil water retention and electrical resistivity curves versus water content. From the matching of the experimental data, a direct relationship between electrical resistivity and matric suction is retrieved for the investigated soil horizons typical of a ash-fall pyroclastic succession. The obtained relation turns out to be helpful in characterizing soils up to close saturation, which is a critical condition for the trigger of slo...

De Vita, Pantaleone; Piegari, Ester

2011-01-01T23:59:59.000Z

428

FINAL_2013_Social-Media-Guide  

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

Throughout EPA's ENERGY STAR National Building Competition, use Throughout EPA's ENERGY STAR National Building Competition, use social media to share your energy-saving efforts with the public! Remember, this year's competition will highlight your communication activities through our Most Valuable Participant (MVP) award. Teams wishing to compete for MVP must complete a communications scorecard, available at www.energystar.gov/BattleOfTheBuildings, at competition midpoint and again at competition end. The scorecard includes activities like completing a press release, tweeting about the competition, and joining as an ENERGY STAR partner. Follow the guide below to engage followers and broadcast your achievements. STEP 1: SET UP A TWITTER ACCOUNT FOR THE COMPETITION'S FEED The competition website will once again feature a Twitter feed that will display tweets from you, our competitors. This

429

Energy Media Advisories | Department of Energy  

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

February 13, 2012 February 13, 2012 Energy Secretary to Visit Georgia Nuclear Reactor Site and Tennessee Laboratory to Highlight Administration Support for Nuclear Energy Secretary Chu to deliver remarks at new nuclear reactors site in Waynesboro, tour nuclear energy innovation hub in Oak Ridge February 10, 2012 Undersecretary for Nuclear Security, NNSA and EM Officials to Discuss President Obama's FY 2013 Budget Request Senior officials from the National Nuclear Security Administration (NNSA) and Department of Energy's Office of Environmental Management (EM) will host a conference call on Monday, Feb. 13, to discuss President Obama's FY 2013 Budget Request. February 10, 2012 Secretary Chu to Host Media Briefing on Energy Department FY 2013 Budget Request On Monday, February 13, 2012, U.S. Energy Secretary Steven Chu will host a

430

Energy Media Advisories | Department of Energy  

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

May 24, 2011 May 24, 2011 Department of Energy to Host Inaugural Energy Frontier Research Center Summit Secretary Chu to Deliver Keynote Address May 12, 2011 FRIDAY: Secretary Chu and Mayor Villaraigosa to Highlight Los Angeles Electric Vehicle Deployment Success EVs and charging infrastructure critical to helping reduce U.S. dependence on foreign oil May 4, 2011 Press Conference Call Tomorrow: Agriculture Secretary Vilsack and Energy Secretary Chu to Discuss Efforts to Reduce U.S. Oil Dependence WASHINGTON - TOMORROW, May 5, 2011, Agriculture Secretary Tom Vilsack and Energy Secretary Steven Chu will host a media conference call to highlight Obama Administration efforts to move the nation towards a clean energy future and reduce America's dependence on imported oil. Secretaries Vilsack and Chu will be announcing biomass research and

431

Internet Media Types and the Web  

E-Print Network (OSTI)

draft-masinter-mime-web-info-00 This document describes some of the ways in which parts of the MIME system, originally designed for electronic mail, have been used in the web, and some of the ways in which those uses have resulted in difficulties. This informational document is intended as background and justification for a companion Best Current Practice which makes some changes to the registry of Internet Media Types and other specifications and practices, in order to facilitate Web application design and standardization. Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at

L. Masinter

2010-01-01T23:59:59.000Z

432

TOUGHREACT User's Guide: A Simulation Program for Non-isothermal Multiphase Reactive Geochemical Transport in Variably Saturated Geologic Media, V1.2.1  

Science Conference Proceedings (OSTI)

Coupled modeling of subsurface multiphase fluid and heat flow, solute transport, and chemical reactions can be applied to many geologic systems and environmental problems, including geothermal systems, diagenetic and weathering processes, subsurface waste disposal, acid mine drainage remediation, contaminant transport, and groundwater quality. TOUGHREACT has been developed as a comprehensive non-isothermal multi-component reactive fluid flow and geochemical transport simulator to investigate these and other problems. A number of subsurface thermo-physical-chemical processes are considered under various thermohydrological and geochemical conditions of pressure, temperature, water saturation, and ionic strength. TOUGHREACT can be applied to one-, two- or three-dimensional porous and fractured media with physical and chemical heterogeneity. The code can accommodate any number of chemical species present in liquid, gas and solid phases. A variety of equilibrium chemical reactions are considered, such as aqueous complexation, gas dissolution/exsolution, and cation exchange. Mineral dissolution/precipitation can take place subject to either local equilibrium or kinetic controls, with coupling to changes in porosity and permeability and capillary pressure in unsaturated systems. Chemical components can also be treated by linear adsorption and radioactive decay. The first version of the non-isothermal reactive geochemical transport code TOUGHREACT was developed (Xu and Pruess, 1998) by introducing reactive geochemistry into the framework of the existing multi-phase fluid and heat flow code TOUGH2 (Pruess, 1991). TOUGHREACT was further enhanced with the addition of (1) treatment of mineral-water-gas reactive-transport under boiling conditions, (2) an improved HKF activity model for aqueous species, (3) gas species diffusion coefficients calculated as a function of pressure, temperature, and molecular properties, (4) mineral reactive surface area formulations for fractured and porous media, and (5) porosity, permeability, and capillary pressure changes owing to mineral precipitation/dissolution (Sonnenthal et al., 1998, 2000, 2001; Spycher et al., 2003a). Subsequently, TOUGH2 V2 was released with additional EOS modules and features (Pruess et al., 1999). The present version of TOUGHREACT includes all of the previous extensions to the original version, along with the replacement of the original TOUGH2 (Pruess, 1991) by TOUGH2 V2 (Pruess et al., 1999). TOUGHREACT has been applied to a wide variety of problems, some of which are included as examples, such as: (1) Supergene copper enrichment (Xu et al., 2001); (2) Mineral alteration in hydrothermal systems (Xu and Pruess, 2001a; Xu et al., 2004b; Dobson et al., 2004); (3) Mineral trapping for CO{sub 2} disposal in deep saline aquifers (Xu et al., 2003b and 2004a); (4) Coupled thermal, hydrological, and chemical processes in boiling unsaturated tuff for the proposed nuclear waste emplacement site at Yucca Mountain, Nevada (Sonnenthal et al., 1998, 2001; Sonnenthal and Spycher, 2000; Spycher et al., 2003a, b; Xu et al., 2001); (5) Modeling of mineral precipitation/dissolution in plug-flow and fracture-flow experiments under boiling conditions (Dobson et al., 2003); (6) Calcite precipitation in the vadose zone as a function of net infiltration (Xu et al., 2003); and (7) Stable isotope fractionation in unsaturated zone pore water and vapor (Singleton et al., 2004). The TOUGHREACT program makes use of 'self-documenting' features. It is distributed with a number of input data files for sample problems. Besides providing benchmarks for proper code installation, these can serve as a self-teaching tutorial in the use of TOUGHREACT, and they provide templates to help jump-start new applications. The fluid and heat flow part of TOUGHREACT is derived from TOUGH2 V2, so in addition to the current manual, users must have the manual of the TOUGH2 V2 (Pruess et al., 1999). The present version of TOUGHREACT provides the following TOUGH2 fluid property or 'EOS' (equation-of-state) modules: (1) EOS1 for

Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

2008-09-29T23:59:59.000Z

433

NOAA's National Marine Sanctuaries Media Library | Data.gov  

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

National Marine Sanctuaries Media Library National Marine Sanctuaries Media Library Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data NOAA's National Marine Sanctuaries Media Library Dataset Summary Description NOAA (National Ocean Service) Office of National Marine Sanctuaries' Media Library is an online vault where a comprehensive collection of select video clips and high-resolution still images from America's underwater treasures are securely stored and available for searchable access and download. Tags {ONMS,"Office of National Marine Sanctuaries",MPA,"Marine Protected Area",habitat,fisheries,seafloor,lithology,oceans,"Environmental Monitoring",photos,video,recreation,travel,tourism,"whales,fish",sharks,culture,heritage,birds,science,research,plants,mammals,reptiles,media}

434

Green Builder Media /Green Builder College | Open Energy Information  

Open Energy Info (EERE)

Green Builder Media /Green Builder College Green Builder Media /Green Builder College Jump to: navigation, search Name Green Builder Media /Green Builder College Place Cincinnati, OH Website http://www.greenbuildermag.com References NAHB Press Release[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Test & Evaluation Partner Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Green Builder Media /Green Builder College is a company located in Cincinnati, OH. References ↑ "NAHB Press Release" Retrieved from "http://en.openei.org/w/index.php?title=Green_Builder_Media_/Green_Builder_College&oldid=381713" Categories: Clean Energy Organizations

435

Fluid Flow Model Development for Representative Geologic Media | Department  

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

Fluid Flow Model Development for Representative Geologic Media Fluid Flow Model Development for Representative Geologic Media Fluid Flow Model Development for Representative Geologic Media Clay and granitic geologic rock units are potential host media for future repositories for used nuclear fuel and high level waste. This report addresses the representation of flow in these two media within numerical process models. Discrete fracture network (DFNs) models are an approach to representing flow in fractured granite that explicitly represents the geometry and flow properties of individual fractures. New DFN generation and computational grid generation methods have been developed and tested. Mesh generation and the generation of flow streamlines within the DFN are also included. Traditional form of Darcy's law is not adequate

436

Media Advisory: Site-wide Safety Standards | Department of Energy  

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

Media Advisory: Site-wide Safety Standards Media Advisory: Site-wide Safety Standards Media Advisory: Site-wide Safety Standards August 1, 2012 - 12:00pm Addthis Media Contacts Michael Turner, MSA michael_j_turner@rl.gov 509-376-2872 What: Department of Energy to announce two additions to the Hanford Site-wide Safety Standards - a set of 14 areas where Hanford contractors have collaborated to establish one uniform standard to guide safe operations. The latest additions to the Site-wide Safety Standards are Fall Protection and Electrical Safety. DOE Hanford management will explain the significance of the Site-wide Safety Standards, their use and application at the Hanford Site, the benefits to workers and the example Hanford is setting for excellence in safety. Media will then be offered a demonstration of Fall Protection training, along with other training programs at the DOE's Volpentest HAMMER Training Center, operated by Mission Support Alliance.

437

The Determination of View-Factors in Urban Canyons  

Science Conference Proceedings (OSTI)

An important aspect of longwave radiation exchange within urban canopies is the degree to which the sky is obscured by surrounding buildings, a concept which may be described by the sky view-factor (?s). Hitherto, expressions for sky view-factors ...

Glenn T. Johnson; Ian D. Watson

1984-02-01T23:59:59.000Z

438

O'Leary outlines policy views at confirmation hearing  

Science Conference Proceedings (OSTI)

In her confirmation hearing, Secretary O'Leary outlined her views on various controversial issues. Among these were management of Yucca Mountain and the search for a nuclear waste repository, research on alternative fuels, encouragement of the use of renewable energy sources, and her views on intergrated resource planning.

Simpson, J.

1993-02-15T23:59:59.000Z

439

Enabling device independent co-browsing through adaptive view points  

Science Conference Proceedings (OSTI)

Efficient co-browsing of web-pages from devices with different capabilities requires users to have a shared understanding of those web-pages. This paper outlines the concept of shared view point (SVP) and personal view point (PVP) for co-browsing before ... Keywords: Co-browsing, Device independence, Web content adaptation

H. N. Chua; S. D. Scott; Y. W. Choi

2008-03-01T23:59:59.000Z

440

View discovery in OLAP databases through statistical combinatorial optimization  

SciTech Connect

OnLine Analytical Processing (OLAP) is a relational database technology providing users with rapid access to summary, aggregated views of a single large database, and is widely recognized for knowledge representation and discovery in high-dimensional relational databases. OLAP technologies provide intuitive and graphical access to the massively complex set of possible summary views available in large relational (SQL) structured data repositories. The capability of OLAP database software systems to handle data complexity comes at a high price for analysts, presenting them a combinatorially vast space of views of a relational database. We respond to the need to deploy technologies sufficient to allow users to guide themselves to areas of local structure by casting the space of 'views' of an OLAP database as a combinatorial object of all projections and subsets, and 'view discovery' as an search process over that lattice. We equip the view lattice with statistical information theoretical measures sufficient to support a combinatorial optimization process. We outline 'hop-chaining' as a particular view discovery algorithm over this object, wherein users are guided across a permutation of the dimensions by searching for successive two-dimensional views, pushing seen dimensions into an increasingly large background filter in a 'spiraling' search process. We illustrate this work in the context of data cubes recording summary statistics for radiation portal monitors at US ports.

Hengartner, Nick W [Los Alamos National Laboratory; Burke, John [PNNL; Critchlow, Terence [PNNL; Joslyn, Cliff [PNNL; Hogan, Emilie [PNNL

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Is the Resource-Based View a Practical Organizational Theory?  

Science Conference Proceedings (OSTI)

We explore the question of whether the resource-based view (RBV) is a practical theory for managers. We test the ability of the RBV to provide two pieces of practical information: (1) the identification of the very few strategic assets from a large set ... Keywords: operational validity, resource-based view, simulation

Richard J. Arend; Moren Lvesque

2010-07-01T23:59:59.000Z

442

Theoretical Studies of Non-Newtonian and Newtonian Fluid Flow through Porous Media  

E-Print Network (OSTI)

of Multicomponent, Multiphase Displacement in Porous Media,"C. M. (1981) : Multiphase Flow in Porous Media, Technip,porous media can always be considered as a special case of the multiphase

Wu, Y.S.

1990-01-01T23:59:59.000Z

443

PIA - ORO Web 2.0 Social Media Third-Party System (Facebook)...  

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

ORO Web 2.0 Social Media Third-Party System (Facebook) PIA - ORO Web 2.0 Social Media Third-Party System (Facebook) PIA - ORO Web 2.0 Social Media Third-Party System (Facebook) PIA...

444

SC_Web_2.0_Social_Media.pdf | Department of Energy  

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

Marketing Administration Other Agencies You are here Home SCWeb2.0SocialMedia.pdf SCWeb2.0SocialMedia.pdf SCWeb2.0SocialMedia.pdf More Documents & Publications PIA...

445

Critical reflection in a digital media artwork - Playas: homeland mirage  

E-Print Network (OSTI)

The introduction of digital media into the working practice of artists has produced challenges previously unknown to the field of art. This inquiry follows an atypical model of artist-driven research derived from disciplines such as social science and education. Here, an artwork functions as a model that is self-reflective, integrating methodologies in a form that benefits art and science. Using Naturalistic Inquiry, including semi-structured interviews of fifteen participants, the work illustrates a process of creation, analysis and evaluation that places the values of the artist on equal footing with the needs of science. Recently, artists have begun using video game engines as a tool to produce 3D navigable spaces. Using the hybrid video game/installation Playas: Homeland Mirage as a case study, this research examines the impact of technology on the artwork and identifies a number of key issues related to the function of critical reflection in this environment. Rules-of-play were a fundamental pre-requisite to the stimulation of critically reflective experience. The human interface with software and hardware was also a primary factor in reflective experience. Based on participant evaluation and observation, the interface was altered in response to its effect on critical reflection, illustrating how choices in this area impact aesthetic experience. Those with experience in visual art were more likely to engage the work in a critically reflective manner than seasoned video game players who tended to be more interested in scoring and winning. These findings and others inform our understanding of the stimulation of critical reflection in immersive environments and show how we can sensitively integrate technology with meaningful evaluative methods. By repurposing a video game in this manner, we learn about the nature of the video game and the nature of art. This research enables artists to gain a better understanding of the medium to more fully integrate technology within a meaningful practice. Conversely, other fields will benefit from a better understanding of the stimulation of meaning in immersive spaces and gain a comprehensive view of a work that strives to contribute to our culture on a deeper level than as simple entertainment. Ultimately, more fully understanding critical reflection in virtual environments will enable us to create enriched experiences that transcend space to create real or virtual place.

Stenner, Jack Eric

2007-08-01T23:59:59.000Z

446

U-095: HP Data Protector Media Operations Lets Remote Users Execute...  

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

5: HP Data Protector Media Operations Lets Remote Users Execute Arbitrary Code U-095: HP Data Protector Media Operations Lets Remote Users Execute Arbitrary Code February 3, 2012 -...

447

News Media Exits for Depleted Uranium and Depleted UF6 Articles  

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

line line Archived News and Events News Media Links News Media Exits for Depleted Uranium and Depleted UF6 Articles Online editions of newspapers that cover Depleted Uranium...

448

Three-dimensional effect on the effective thermal conductivity of porous media  

E-Print Network (OSTI)

conductivity of multiphase random porous media. The energymorphology of multiphase random porous media. Wangsfor multiphase conjugate heat transfer through a porous

Wang, Moran R Dr.; Wang, J K; Pan, N; Chen, S Y; He, J H

2007-01-01T23:59:59.000Z

449

A Physically Based Approach for Modeling Multiphase Fracture-Matrix Interaction in Fractured Porous Media  

E-Print Network (OSTI)

in modeling multiphase flow in porous and fractured media,multiphase tracer transport in heterogeneous fractured porousof multiphase flow through fractured or porous media.

Wu, Yu-Shu; Pan, Lehua; Pruess, Karsten

2004-01-01T23:59:59.000Z

450

Report: Public Trust in Higher Education and A Media Review of Press Articles in California  

E-Print Network (OSTI)

independence of higher education from federal edicts.news). PUBLIC TRUST IN HIGHER EDUCATION AND A MEDIA REVIEWPublic Trust in Higher Education and A Media Review of Press

Fox, Warren H.; Earl-Novell, Sarah L.

2004-01-01T23:59:59.000Z

451

Media and democratization: a comparative study of two former communist countries (Poland and Russia).  

E-Print Network (OSTI)

??Democratization process in Europe and Russia was studied thoroughly, while less significant attention was paid to the role of Media in it. Media freedom ratings (more)

Volkova, Anna

2012-01-01T23:59:59.000Z

452

GEOCENTRIFUGE STUDIES OF FLOW AND TRANSPORT IN POROUS MEDIA, FINAL REPORT FOR GRANT NUMBER DE-FG02-03ER63567 TO THE UNIVERSITY OF IDAHO (RW SMITH), ENVIRONMENTAL MANAGEMENT SCIENCE PROGRAM PROJECT NUMBER 86598, COUPLED FLOW AND REACTIVITY IN VARIABLY SATURATED POROUS MEDIA  

Science Conference Proceedings (OSTI)

Improved models of contaminant migration in heterogeneous, variably saturated porous media are required to better define the long-term stewardship requirements for U.S. Department of Energy (DOE) lands and to assist in the design of effective vadose-zone barriers to contaminant migrations. The development of these improved models requires field and laboratory results to evaluate their efficacy. However, controlled laboratory experiments simulating vadose conditions can require extensive period of time, and often are conducted at condition near saturation rather than the much drier conditions common in many contaminated arid vadose zone sites. Collaborative research undertaken by the Idaho National Laboratory (INL) and the University of Idaho as part of this Environmental Management Science Program project focused on the development and evaluation of geocentrifuge techniques and equipment that allows vadose zone experiments to be conducted for relevant conditions in time frames not possible in conventional bench top experiments. A key and novel aspect of the research was the use of the 2-meter radius geocentrifuge capabilities at the Idaho National Laboratory to conduct unsaturated transport experiments. Specifically, the following activities were conducted ** Reviewing of the theory of unsaturated flow in the geocentrifuge to establish the range of centrifuge accelerations/experimental conditions and the translation of centrifuge results to 1 gravity applications. ** Designing, constructing, and testing of in-flight experimental apparatus allowing the replication of traditional bench top unsaturated transport experiments on the geocentrifuge. ** Performing unsaturated 1-dimenstional column geocentrifuge experiments using conservative tracers to evaluate the effects of increased centrifugal acceleration on derived transport properties and assessing the scaling relationships for these properties. Because the application of geocentrifuge techniques to vadose transport is in its infancy experimental apparatus such as pumps, flow meters, columns, fraction collectors, etc. that would reliably function under the increased self weight experienced on the centrifuge had to be developed and tested as part of this project. Although, we initially planed to conduct experiments using reactive tracer and 2-dimensional heterogeneities, the cost and time associated with designing, building, and testing of experimental apparatus limited our experimental program to conservative tracer experiments using 1-dimensional columns. The results we obtained in this study indicate that the geocentrifuge technique is a viable experimental method for the study of subsurface processes where gravitational acceleration is important. The geocentrifuge allows experiments to be completed more quickly than tests conducted at 1-g, can be used to experimentally address important scaling issues, and permits experiments under a range of conditions that would be difficult or impossible using conventional approaches. The application of the geocentrifuge approaches and associated models developed in this project allows more meaningful investigation of DOE relevant vadose-zone issues under scalable conditions in time frames previously not obtainable.

Robert W. Smith; Carl D. Palmer; Earl D. Mattson

2007-06-15T23:59:59.000Z

453

MediaWiki:Sidebar | Open Energy Information  

Open Energy Info (EERE)

Sidebar Sidebar Jump to: navigation, search Browse width:20em Gateway:América Latina|Latinoamérica Gateway:Buildings|Buildings Gateway:Clean_Energy_Economy|Clean Energy Economy Gateway:Coordinated Low Emissions Assistance Network (CLEAN)|Coordinated Low Emissions Assistance Network Gateway:Geothermal|Geothermal Gateway:Incentives and Policies|Incentives and Policies Gateway:International Clean Energy Analysis|International Clean Energy Analysis Gateway:Low Emission Development Strategies|Low Emission Development Strategies Gateway:Oil_and_Gas|Oil & Gas Gateway:Smart_Grid|Smart Grid Gateway:Solar|Solar Gateway:U.S._OpenLabs|U.S. OpenLabs Gateway:Utilities|Utilities Gateway:Water Power|Water Gateway:Wind|Wind PAGE View width:16em Special:NewPages|New Pages Special:RecentChanges|Recent Changes

454

TOURGHREACT: A Simulation Program for Non-isothermal Multiphase Reactive Geochemical Transport in Variably Saturated Geologic Media  

E-Print Network (OSTI)

for modeling fluid and heat flow in fractured porous media.flows of multiphase fluids in porous and fractured media.

Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

2004-01-01T23:59:59.000Z

455

Science Conference Proceedings : Main View : Deep Web Business Search  

Office of Scientific and Technical Information (OSTI)

Main View Main View This view is used for searching all possible sources. A SCIENCE Accelerator Resource Additional Information Search: Search Clear All Conference Collections Welcome to the DOE Office of Scientific and Technical Information's (OSTI) Science Conference Proceedings Portal. This distributed portal provides access to science and technology conference proceedings and conference papers from a number of authoritative sites (professional societies and national labs, largely) whose areas of interest in the physical sciences and technology intersect those of the Department of Energy. Proceedings and papers from scientific meetings can be found in these fields, among others: particle physics, nuclear physics, chemistry, petroleum, aeronautics and astronautics, meteorology, engineering, computer science, electric power,

456

Coupled transport processes in semipermeable media  

DOE Green Energy (OSTI)

A numerical simulator has been developed to investigate the effects of coupled processes on heat and mass transport in semipermeable media. The governing equations on which the simulator is based were derived using the thermodynamics of irreversible processes. The equations are nonlinear and have been solved numerically using the n-dimensional Newton's method. As an example of an application, the numerical simulator has been used to investigate heat and solute transport in the vicinity of a heat source buried in a saturated clay-like medium, in part to study solute transport in bentonite packing material surrounding a nuclear waste canister. The coupled processes considered were thermal filtration, thermal osmosis, chemical osmosis and ultrafiltration. In the simulations, heat transport by coupled processes was negligible compared to heat conduction, but pressure and solute migration were affected. Solute migration was retarded relative to the uncoupled case when only chemical osmosis was considered. When both chemical osmosis and thermal osmosis were included, solute migration was enhanced. 18 refs., 20 figs.

Jacobsen, J.S.; Carnahan, C.L.

1990-04-01T23:59:59.000Z

457

Coupled transport processes in semipermeable media  

DOE Green Energy (OSTI)

The thermodynamics of irreversible processes (TTIP) is used to derive governing equations and phenomenological equations for transport processes and chemical reactions in water-saturated semipermeable media. TTIP is based on three fundamental postulates. The first postulate, the assumption of local equilibrium, allows the formulation of balance equations for entropy. These equations are the bases for the derivation of governing equations for the thermodynamic variables, temperature, pressure, and composition. The governing equations involve vector fluxes of heat and mass and scalar rates of chemical reactions; in accordance with the second postulate of TTIP, these fluxes and rates are related, respectively, to all scalar driving forces (gradients of thermodynamic variables) acting within the system. The third postulate of TTIP states equality (the Onsager reciprocal relations) between certain of the phenomenological coefficients relating forces and fluxes. The description by TTIP of a system undergoing irreversible processes allows consideration of coupled transport processes such as thermal osmosis, chemical osmosis, and ultrafiltration. The coupled processes can make significant contributions to flows of mass and energy in slightly permeable, permselective geological materials such as clays and shales.

Carnahan, C.L.; Jacobsen, J.S.

1990-04-01T23:59:59.000Z

458

Saving Energy and Social Media | Department of Energy  

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

Social Media Social Media Saving Energy and Social Media May 23, 2012 - 12:56pm Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy I'm on Facebook rather often. With just over 1000 friends, it can be nearly impossible to keep up with everyone's doings; sometimes, even birthdays are hard to acknowledge. The flood of information can be overwhelming. But that leads me to wonder... How many people know that both EERE (that is, the DOE's Office of Energy Efficiency and Renewable Energy) and Energy Savers have Facebook pages? Do you visit them? And if so, have you ever shared one of the items you found there? In a world where social media allows us to amplify messages merely by "liking" or sharing/retweeting/cross-posting them, it seems we're all

459

Transient Steam Flow in Porous Media - Theory and Experiment  

SciTech Connect

The adsorption of steam in porous media, leading to a delay in steam pressure breakthrough, has been incorporated into a revised model of steam flow in a porous medium.

Herkelrath, W.N.; Moench, A.F.

1980-12-16T23:59:59.000Z

460

Characterization by mercury porosimetry of nonwoven fiber media with deformation  

E-Print Network (OSTI)

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

Rutledge, Gregory C.

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

DIY Media: Digital Literacies and Learning through Popular Cultural Production  

Science Conference Proceedings (OSTI)

Schools remain notorious for co-opting digital technologies to business as usual approaches to teaching new literacies. DIY Media addresses this issue head-on, and describes expansive and creative practices of digital literacy that are increasingly influential ...

Michele Knobel; Colin Lankshear

2010-02-01T23:59:59.000Z

462

Atom-light interactions in ultracold anisotropic media  

E-Print Network (OSTI)

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

Vengalattore, Mukund T., 1977-

2005-01-01T23:59:59.000Z

463

Saving Energy and Social Media | Department of Energy  

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

Saving Energy and Social Media Saving Energy and Social Media Saving Energy and Social Media May 23, 2012 - 12:56pm Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy I'm on Facebook rather often. With just over 1000 friends, it can be nearly impossible to keep up with everyone's doings; sometimes, even birthdays are hard to acknowledge. The flood of information can be overwhelming. But that leads me to wonder... How many people know that both EERE (that is, the DOE's Office of Energy Efficiency and Renewable Energy) and Energy Savers have Facebook pages? Do you visit them? And if so, have you ever shared one of the items you found there? In a world where social media allows us to amplify messages merely by "liking" or sharing/retweeting/cross-posting them, it seems we're all

464

Media FAQs about ENERGY STAR for commercial and industrial buildings |  

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

Media FAQs about ENERGY STAR for commercial and industrial Media FAQs about ENERGY STAR for commercial and industrial buildings Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section News and announcements ENERGY STAR in the news Media FAQs Photos and graphics Media FAQs about ENERGY STAR for commercial and industrial buildings Tip: To search by keyword, hit Ctrl+F (Windows) or Cmd+F (Mac). To browse

465

DOE Media Advisory - DOE extends public comment period on Draft  

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

Media Advisory - DOE extends public comment period on Draft Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site DOE Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site October 13, 2011 - 12:00pm Addthis Media Contact Tim Jackson 208-526-8484 In response to requests from people interested in National Environmental Policy Act activities occurring at the U.S. Department of Energy's Idaho Operations Office, the department has extended the public comment period that began September 1 on the Draft Environmental Assessment for

466

NREL: Sustainable NREL - Media Contacts for the Research Support Facility  

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

Media Contacts for the Research Support Facility Media Contacts for the Research Support Facility Please refer to these media contacts if you are a member of the media and have questions about the Research Support Facility (RSF). U.S. Department of Energy, Golden Field Office The U.S. Department of Energy (DOE), the owner of the National Renewable Energy Laboratory (NREL), developed the vision for a super energy-efficient office building on the NREL campus that would serve as a model and showcase for what is technologically possible and commercially viable. With this building, DOE leads by example and hopes to spur innovation and replication throughout government and the commercial building sector. John Horst U.S. Department of Energy, Golden Field Office 303-275-4709 Eric Escudero U.S. Department of Energy, Golden Field Office

467

Media Briefing: Fiscal Year 2012 Budget | Department of Energy  

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

Media Briefing: Fiscal Year 2012 Budget Media Briefing: Fiscal Year 2012 Budget Media Briefing: Fiscal Year 2012 Budget Addthis Description US Department of Energy Secretary Steven Chu holds a media briefing on the Fiscal Year 2011 Budget. Speakers Secretary Steven Chu Duration 46:52 Topic Energy Economy Recovery Act Energy Policy Credit Energy Department Video Slides Secretary Chu's FY 2012 Budget Briefing SECRETARY STEVEN CHU: And good afternoon. We'd like to unveil our 2012 budget overview. So let me just begin. This budget is about winning the future. The president has spoken that it takes time to compete for jobs in the industries of our time. And he points out that the United States is going to be in a race with the rest of the world. And in order to win this race, a race for our future prosperity, our energy security, our security

468

Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) | Open  

Open Energy Info (EERE)

Media, Inc. (Du Pont) (Building America Retrofit Alliance) Media, Inc. (Du Pont) (Building America Retrofit Alliance) Jump to: navigation, search Name Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) Place Wilmington, DE Website http://www.prweb.com/releases/ References Building America Retrofit Alliance Press Release[1] BMI Website[2] DuPont Website[3] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Incubator Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) is a company located in Wilmington, DE. References ↑ "Building America Retrofit Alliance Press Release" ↑ "BMI Website"

469

Practical rendering of multiple scattering effects in participating media  

Science Conference Proceedings (OSTI)

Volumetric light transport effects are significant for many materials like skin, smoke, clouds, snow or water. In particular, one must consider the multiple scattering of light within the volume. While it is possible to simulate such media using volumetric ...

Simon Premoe; Michael Ashikhmin; Jerry Tessendorf; Ravi Ramamoorthi; Shree Nayar

2004-06-01T23:59:59.000Z

470

Targeting in Advertising Markets: Implications for Offline Versus Online Media  

E-Print Network (OSTI)

We develop a model with many advertisers (products) and many advertising markets (media). Each advertiser sells to a different segment of consumers, and each medium is targeting a different audience. We characterize the ...

Bergemann, Dirk

471

A model for multiphase flows through poroelastic media  

Science Conference Proceedings (OSTI)

A continuum model for multiphase fluid mixture flows through poroelastic media is presented. The basic conservation laws developed via a volume averaging technique are considered. Effects of phasic equilibrated forces are included in the model. Based on the thermodynamics of the multiphase mixture flows, appropriate constitutive equations are formulated. The entropy inequality is exploited, and the method of Lagrangian multiplier is used along with the phasic conservation laws to derive the constitutive equations for the phasic stress tensors, equilibrated stress vectors, and the interactions terms. The special cases of wave propagation in poroelastic media saturated with multiphase fluids, and multiphase flows through porous media, are studied. It is shown that the present theory leads to the extended Darcys law and contains, as a special case, Biots theory of saturated poroelastic media.

Ahmadi, Goodarz; Mazaheri, Ali Reza; Smith, D.H

2003-01-01T23:59:59.000Z

472

Non-equilibrium effects and multiphase flow in porous media.  

E-Print Network (OSTI)

??We encounter flow in porous media, knowingly or otherwise, on a daily basis; percolation of precipitation into top soil, ground-water supplies obtained from aquifers (ground-water (more)

Aryana, Saman Afqahi.

2012-01-01T23:59:59.000Z

473

Irradiance gradients in the presence of participating media and occlusions  

Science Conference Proceedings (OSTI)

In this paper we present a technique for computing translational gradients of indirect surface reflectance in scenes containing participating media and significant occlusions. These gradients describe how the incident radiance field changes with respect ...

Wojciech Jarosz; Matthias Zwicker; Henrik Wann Jensen

2008-06-01T23:59:59.000Z

474

Deputy Secretary Poneman to Host Media Briefing on Energy Department...  

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

April 10, 2013 at 3:00 PM EDT RSVP Media wishing to attend should contact Steven Thai at steven.thai@hq.doe.gov by 4:30 PM EDT on Tuesday, April 9, 2013 A listen only...

475

User-generated censorship : manipulating the maps of social media  

E-Print Network (OSTI)

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

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

2013-01-01T23:59:59.000Z

476

Design issues for mixed media packet switching networks  

Science Conference Proceedings (OSTI)

In this paper we present some of the important design issues for packet switching networks with both satellite and terrestrial components---which we call mixed media packet switching networks. Satellite packet switching has considerable promise ...

D. Huynh; H. Kobayashi; F. F. Kuo

1976-06-01T23:59:59.000Z

477

A ceaseless becoming : narratives of adolescence across media  

E-Print Network (OSTI)

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

Grigsby, Neal A. (Neal Alan)

2007-01-01T23:59:59.000Z

478

Kinetics, Mechanics and Microstructure Changes in Storage Media  

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

Program Review Crystal Gateway Marriott, Crystal City, VA May 18, 2006 Kinetics, Mechanics and Microstructure Changes in Storage Media Anter El-Azab Tel: 850-410-6655, E-mail...

479

The Media and Public Perceptions of Climatic Change  

Science Conference Proceedings (OSTI)

This paper reports on the role of the media in shaping public perceptions of climatic change in Canada. The results of an exploratory questionnaire survey in southern Ontario revealed that a large proportion of respondents believe that the ...

Michael R. Harrison

1982-07-01T23:59:59.000Z

480

Why Presence Occurs: Evolutionary Psychology, Media Equation, and Presence  

Science Conference Proceedings (OSTI)

Despite the intense interest in the phenomena of presence, there have been limited attempts to explain the fundamental reason why human beings can feel presence when they use media and/or simulation technologies. This is mainly because previous ...

Kwan Min Lee

2004-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "unsaturated media view" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Fischer-Tropsch synthesis in supercritical reaction media  

DOE Green Energy (OSTI)

The goal of the proposed research is to develop novel reactor operating strategies for the catalytic conversion of syngas to transportation grade fuels and oxygenates using near-critical (nc) fluids as reaction media. This will be achieved through systematic investigations aimed at a better fundamental understanding of the physical and chemical rate processes underlying catalytic syngas conversion in nc reaction media. Syngas conversion to fuels and fuel additives on Fe catalysts (Fischer-Tropsch synthesis) was investigated. Specific objectives are to investigate the effects of various nc media, their flow rates and operating pressure on syngas conversion, reactor temperature profiles, product selectivity and catalyst activity in trickle-bed reactors. Solvents that exhibit gas to liquid-like densities with relatively moderate pressure changes (from 25 to 60 bars) at typical syngas conversion temperatures (in the 220-280{degree}C range) will be chosen as reaction media.

Subramaniam, B.

1995-05-01T23:59:59.000Z

482

Information for Media on Lighting Choices | Department of Energy  

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

and images are available for use by media organizations. The materials are copyright-free, and you are welcome to cite the U.S. Department of Energy Office of Energy Efficiency...

483

Cute Cats to the Rescue? Participatory Media and Political Expression  

E-Print Network (OSTI)

Participatory media technologies like weblogs and Facebook provide a new space for political discourse, which leads some governments to seek controls over online speech. Activists who use the Internet for dissenting speech ...

Zuckerman, Ethan

484

MediaWiki:Smw import foaf | Open Energy Information  

Open Energy Info (EERE)

Message Edit History Facebook icon Twitter icon MediaWiki:Smw import foaf Jump to: navigation, search http:xmlns.comfoaf0.1%7CFriend Of A Friend basednear|Type:Page...

485

Prairie View Gas Recovery Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Prairie View Gas Recovery Biomass Facility Prairie View Gas Recovery Biomass Facility Jump to: navigation, search Name Prairie View Gas Recovery Biomass Facility Facility Prairie View Gas Recovery Sector Biomass Facility Type Landfill Gas Location St. Joseph County, Indiana Coordinates 41.6228085°, -86.3376761° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.6228085,"lon":-86.3376761,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

486

Logan View Public Schools Wind Project | Open Energy Information  

Open Energy Info (EERE)

View Public Schools Wind Project View Public Schools Wind Project Jump to: navigation, search Name Logan View Public Schools Wind Project Facility Logan View Public Schools Sector Wind energy Facility Type Community Wind Location NE Coordinates 41.651546°, -96.50457° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.651546,"lon":-96.50457,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

487

Real-Time Sky-View Factor Calculation and Approximation  

Science Conference Proceedings (OSTI)

Previously, the acquisition of sky-view factor data for climate studies has been time consuming and dependent on postprocessing. However, advances in technology now mean that techniques using fish-eye imagery can be algorithmically processed in ...

L. Chapman; J. E. Thornes

2004-05-01T23:59:59.000Z

488

PPPL's "Star Power" video offers compelling view of Laboratory...  

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

PPPL's "Star Power" video offers compelling view of Laboratory's research By Jeanne Jackson DeVoe September 4, 2013 Tweet Widget Facebook Like Google Plus One PPPL has released its...

489

The Outlook for Energy - A View to 2030  

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

The Outlook for Energy - A View to 2030 Speaker(s): David Reed Date: March 20, 2009 - 12:00pm Location: 90-3122 Seminar HostPoint of Contact: Jayant Sathaye Galen Barbose This...

490

JOBAID-VIEWING USER RECORDS | Department of Energy  

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

INFORMATION SYSTEMS ANALYST E-mail arthur.johnson@hq.doe.gov Phone 202-586-9552 More Documents & Publications JOBAID-VIEWING AN EMPLOYEE MATRIX (SUPERVISOR) JOBAID-SELF REGISTERING...

491

February 2013 Most Viewed Documents for National Defense | OSTI...  

Office of Scientific and Technical Information (OSTI)

2013 Most Viewed Documents for National Defense Vapor-liquid equilibria for nitric acid-water and plutonium nitrate-nitric acid-water solutions Maimoni, A. (1980) 108 SMART BRIDGE:...

492

Neutrons' view of hydrogen yields insight into HIV drug design...  

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

Neutrons' view of hydrogen yields insight into HIV drug design ORNL-led study demonstrates relevance of neutrons in biomedical research An ORNL-led team used neutrons to study the...

493

Installing NikonView 4 under Windows (COOLPIX5000/995/885/775/990/880) A-1 Installing NikonView 4 underWindows  

E-Print Network (OSTI)

Installing NikonView 4 under Windows (COOLPIX5000/995/885/775/990/880) A-1 Installing NikonView 4 underWindows Installing Nikon View 4 for the COOLPIX5000/995/885/775/990/880 NikonView 4 includes- trator" (Windows 2000 Professional) or "ComputerAdministrator" (Win- dows XP Home Edition/Windows XP

Kleinfeld, David

494

Bartlett's Ocean View Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Bartlett's Ocean View Wind Farm Bartlett's Ocean View Wind Farm Jump to: navigation, search Name Bartlett's Ocean View Wind Farm Facility Bartlett's Ocean View Wind Farm Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Bartlett's Ocean View Wind Farm Energy Purchaser Bartlett's Ocean View Wind Farm Location Nantucket MA Coordinates 41.259168°, -70.131913° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.259168,"lon":-70.131913,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

495

Two decades of internet video streaming: A retrospective view  

Science Conference Proceedings (OSTI)

For over two decades, video streaming over the Internet has received a substantial amount of attention from both academia and industry. Starting from the design of transport protocols for streaming video, research interests have later shifted to the ... Keywords: HTTP streaming, P2P streaming, Video streaming, cloud computing, multicast, multimedia streaming, social media

Baochun Li, Zhi Wang, Jiangchuan Liu, Wenwu Zhu

2013-10-01T23:59:59.000Z

496

Dynamic effective mass of granular media  

E-Print Network (OSTI)

We report an experimental and theoretical investigation of the frequency-dependent effective mass, $\\tilde{M}(\\omega)$, of loose granular particles which occupy a rigid cavity to a given filling fraction, the remaining volume being air of differing humidities. This allow us to study the mechanisms of elastic response and attenuation of acoustic modes in granular media. We demonstrate that this is a sensitive and direct way to measure those properties of the granular medium that are the cause of the changes in acoustic properties of structures containing grain-filled cavities. Specifically, we apply this understanding to the case of the flexural resonances of a rectangular bar with a grain-filled cavity within it. The dominant features of $\\tilde{M}(\\omega)$ are a sharp resonance and a broad background, which we analyze within the context of simple models. We find that: a) These systems may be understood in terms of a height-dependent and diameter-dependent effective sound speed ($\\sim 100-300$ m/s) and an effective viscosity ($\\sim 5\\times 10^4$ Poise). b) There is a dynamic Janssen effect in the sense that, at any frequency, and depending on the method of sample preparation, approximately one-half of the effective mass is borne by the side walls of the cavity and one-half by the bottom. c) By performing experiments under varying humidity conditions we conclude that, on a fundamental level, damping of acoustic modes is dominated by adsorbed films of water at grain-grain contacts in our experiments, not by global viscous dampening. d) There is a monotonically increasing effect of humidity on the dampening of the fundamental resonance within the granular medium which translates to a non-monotonic, but predictable, variation of dampening within the grain-loaded bar.

John Valenza; Chaur-Jian Hsu; Rohit Ingale; Nicolas Gland; Hernn A. Makse; David Linton Johnson

2009-05-08T23:59:59.000Z

497

A Parallel Second-Order Adaptive Mesh Algorithm for Incompressible Flow in Porous Media  

E-Print Network (OSTI)

solving multiphase, incompressible ?ows in porous media. Wemultiphase, multicomponent incompressible ?ow in hetero- geneous porous

Pau, George Shu Heng

2009-01-01T23:59:59.000Z

498

Making the link-providing mobile media for novice communities in the developing world  

Science Conference Proceedings (OSTI)

In this paper we investigate the media needs of low-income mobile users in a South African township. We develop and deploy a system that allows users to download media at no costs to themselves, in order to probe future media requirements for similar ... Keywords: ICT4D, M4D, Situated media

Andrew Maunder; Gary Marsden; Richard Harper

2011-09-01T23:59:59.000Z

499

Organizing technologies of vision: Making the invisible visible in media-laden observations  

Science Conference Proceedings (OSTI)

Sociomaterial practices produce, in many cases, opportunities for different modes of vision that further structure social practices. The very organization of the technologies of vision, or visual media, thus demands scholarly attention. Drawing on media ... Keywords: Matter, Media theory, Media-laden vision, Vision

Alexander Styhre

2010-01-01T23:59:59.000Z

500

Liquid Hydrofluoric Acid Sorption Using Solid Media - Part 1  

Science Conference Proceedings (OSTI)

The conversion of the uranium hexafluoride (UF{sub 6}) which is removed from the Molten Salt Reactor Experiment (MSRE), into a stable oxide for long-term storage will produce a significant amount of slightly contaminated, concentrated aqueous hydrofluoric acid (HF). Sin&the handling of this HF is complicated and dangerous, it was decided to transform it into a stable solid fluoride (e.g., CaF{sub 2}, AlF{sub 3}, and MgF{sub 2}). Tests have been performed to identify the best media to use for trapping the HF. These tests are described in this report. The first series of tests evaluated 37 trapping materials using a 6 wt % solution of HF. The solution was pumped through a 3.8-cm-diam column at a slow rate, and samples were taken in 100-mL batches until it was determined that the media could no longer neutralize the solution. Each bed volume of media was evaluated for its retention of fluoride and for its plugging problems. Mixtures of calcium hydroxide and blast furnace slag (BFS) with high Surface areas (18-30 mesh) performed the best. A mixture of 80 wt % calcium hydroxide and 20 wt % BFS was capable of loading 0.134 g HF per cubic centimeter (cm{sup 3}) of media. Other media that performed well were (a) mixtures of calcium hydroxide and portland cement and (b) pure calcium hydroxide. The second series of tests evaluated media using a 33 wt % HF solution. The best performing media from the first series and some new ones were tested. A 2.54-cm-diam, clear, polyvinyl chloride pipe was used as the column, and solution was introduced to different types or sizes of media using slugs from a pipette or constant flow of {approx}10.7 mL/min from a metering pump. The transparent PVC allowed for observation of acid-media interaction and provided a glimpse into how the media and cartridge were performing in this highly corrosive environment. Results from the second series of tests showed that many of the best performing media from the first series of tests would not do well under the more concentrated solutions of HF. Plugging and vigorous reactions were common in the second series, and calcium hydroxide-based media was ruled out due to its disintegration at any size (1.25-cm diam to 30 mesh). The best performing media was mid-sized (4-18 mesh) soda and lime (soda lime). This media not only stood up well in the HF solution, but it also had great neutralization capability, effectively neutralizing up to {approx}0.5 g HF/cm{sup 3} of media. It is expected that a cartridge of this sorbent will be capable of handling approximately seven batches of HF from the uranium conversion.

Osborne, P.E.

2000-09-14T23:59:59.000Z