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Note: This page contains sample records for the topic "flow diagram image" from the National Library of EnergyBeta (NLEBeta).
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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.


1

TEP process flow diagram  

SciTech Connect

This presentation describes the development of the proposed Process Flow Diagram (PFD) for the Tokamak Exhaust Processing System (TEP) of ITER. A brief review of design efforts leading up to the PFD is followed by a description of the hydrogen-like, air-like, and waterlike processes. Two new design values are described; the mostcommon and most-demanding design values. The proposed PFD is shown to meet specifications under the most-common and mostdemanding design values.

Wilms, R Scott [Los Alamos National Laboratory; Carlson, Bryan [Los Alamos National Laboratory; Coons, James [Los Alamos National Laboratory; Kubic, William [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

2

Diagram 5. Electricity Flow, 2007 (Quadrillion Btu)  

E-Print Network (OSTI)

generation. f Transmission and distribution losses (electricity losses that occur between the pointDiagram 5. Electricity Flow, 2007 (Quadrillion Btu) Energy Information Administration / Annual Energy Review 2007 221 Coal 20.99 Nuclear Electric Power 8.41 Energy Consumed To Generate Electricity 42

Bensel, Terrence G.

3

Smart Grid Conceptual Actors/Data Flow Diagram- Cross Domain...  

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

Smart Grid Conceptual ActorsData Flow Diagram- Cross Domain Network Focued- Open SGSG-Network TF Smart Grid Conceptual ActorsData Flow Diagram- Cross Domain Network Focued- Open...

4

Bayesian Image Reconstruction Based on Voronoi Diagrams  

E-Print Network (OSTI)

We present a Bayesian Voronoi image reconstruction technique (VIR) for interferometric data. Bayesian analysis applied to the inverse problem allows us to derive the a-posteriori probability of a novel parameterization of interferometric images. We use a variable Voronoi diagram as our model in place of the usual fixed pixel grid. A quantization of the intensity field allows us to calculate the likelihood function and a-priori probabilities. The Voronoi image is optimized including the number of polygons as free parameters. We apply our algorithm to deconvolve simulated interferometric data. Residuals, restored images and chi^2 values are used to compare our reconstructions with fixed grid models. VIR has the advantage of modeling the image with few parameters, obtaining a better image from a Bayesian point of view.

G. F. Cabrera; S. Casassus; N. Hitschfeld

2007-12-26T23:59:59.000Z

5

Energy Flow Diagram | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Science for Energy Flow » Energy Flow Diagram Science for Energy Flow » Energy Flow Diagram Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) News & Resources Program Summaries Brochures Reports Accomplishments Presentations BES and Congress Science for Energy Flow Energy Flow Diagram Seeing Matter Scale of Things Chart Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: sc.bes@science.doe.gov More Information » Science for Energy Flow Energy Flow Diagram Print Text Size: A A A RSS Feeds FeedbackShare Page This diagram shows 2010 energy flow from primary sources (oil, natural gas,

6

Fundamental diagrams for kinetic equations of traffic flow  

E-Print Network (OSTI)

In this paper we investigate the ability of some recently introduced discrete kinetic models of vehicular traffic to catch, in their large time behavior, typical features of theoretical fundamental diagrams. Specifically, we address the so-called "spatially homogeneous problem" and, in the representative case of an exploratory model, we study the qualitative properties of its solutions for a generic number of discrete microstates. This includes, in particular, asymptotic trends and equilibria, whence fundamental diagrams originate.

Luisa Fermo; Andrea Tosin

2013-05-20T23:59:59.000Z

7

A Cascade-Type Global Energy Conversion Diagram Based on WaveMean Flow Interactions  

Science Conference Proceedings (OSTI)

A cascade-type energy conversion diagram is proposed for the purpose of diagnosing the atmospheric general circulation based on wavemean flow interactions. Mass-weighted isentropic zonal means facilitate the expression of nongeostrophic wave ...

Sachiyo Uno; Toshiki Iwasaki

2006-12-01T23:59:59.000Z

8

Load flow analysis: Base cases, data, diagrams, and results  

SciTech Connect

This report describes how an electric utility system is modeled by using load flow techniques to establish a validated power flow case suitable for simulating and evaluating alternative system scenarios. Details of the load flow model are supported by additional technical and descriptive information intended to correlate modeled electrical system parameters with the corresponding physical equipment that makes up the system. Pictures and technical specifications of system equipment from the utility, public, or vendor are provided to support this association for many system components. The report summarizes the load flow model construction, simulation, and validation and describes the general capabilities of an information query system designed to access load flow parameters and other electrical system information.

Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P.

1997-10-01T23:59:59.000Z

9

Enhanced empirical data for the fundamental diagram and the flow through bottlenecks  

E-Print Network (OSTI)

In recent years, several approaches for modelling pedestrian dynamics have been proposed and applied e.g. for design of egress routes. However, so far not much attention has been paid to their 'quantitative' validation. This unsatisfactory situation belongs amongst others on the uncertain and contradictory experimental data base. The fundamental diagram, i.e. the density-dependence of the flow or velocity, is probably the most important relation as it connects the basic parameter to describe the dynamic of crowds. But specifications in different handbooks as well as experimental measurements differ considerably. The same is true for the bottleneck flow. After a comprehensive review of the experimental data base we give an survey of a research project, including experiments with up to 250 persons performed under well controlled laboratory conditions. The trajectories of each person are measured in high precision to analyze the fundamental diagram and the flow through bottlenecks. The trajectories allow to stud...

Seyfried, A; Khler, J; Klingsch, W; Portz, A; Rupprecht, T; Schadschneider, A; Steffen, B; Winkens, A

2008-01-01T23:59:59.000Z

10

ANUDlSiTM-40 Load Flow Analysis: Base Cases, Data, Diagrams, and Results  

Office of Scientific and Technical Information (OSTI)

ANUDlSiTM-40 ANUDlSiTM-40 Load Flow Analysis: Base Cases, Data, Diagrams, and Results by E.C. Portante, J.A. Kavicky, J.C. VanKuiken, and J.P. Peerenboom Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 October 1997 Work sponsored by Navy Engineering Logistics Office This report is printed on recycled paper. @ DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness. or use- fulness of any information, apparatus, product, or process disclosed, or represents

11

A New Flow Diagramming Scheme For Mapping And Analysis Of Multi-Product Flows In A Facility  

Science Conference Proceedings (OSTI)

The design of layouts for facilities that process a high variety of products requires the analysis of a large number of different product routings and their spatial representation on a planar layout of the facility. Traditionally, the representations ... Keywords: Material flow analysis, cascading flowlines, cluster analysis, facility layout, modified multi-product process chart (MM-PPC), string alignment

Jin Zhou; Shahrukh A. Irani

2003-01-01T23:59:59.000Z

12

Phase Diagrams  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Computational Thermodynamics and Kinetics: Phase Diagrams ... TMS: Alloy Phases Committee, TMS: Chemistry and Physics of Materials...

13

A flow cell for electron microscopy imaging of specimen in ...  

A flow cell for electron microscopy imaging of specimen in liquid or gas. Note: The technology described above is an early stage opportunity. ...

14

Using project procedure diagrams for milestone planning  

Science Conference Proceedings (OSTI)

This paper presents Project Procedure Diagrams (PPDs) as a technique for specifying and elaborating project milestone plans. The graphical syntax of PPDs is similar to UML activity diagrams. The operational semantics is based on token flow and resembles ...

Klaus Bergner; Jan Friedrich

2010-07-01T23:59:59.000Z

15

Production and Handling Slide 22: UF6 Phase Diagram  

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

UF6 Phase Diagram Skip Presentation Navigation First Slide Previous Slide Next Slide Last Presentation Table of Contents UF6 Phase Diagram Refer to caption below for image...

16

Thermodynamics and Phase Diagrams  

Science Conference Proceedings (OSTI)

...Alloy Phase Diagrams and Microstructure, Metals Handbook Desk Edition, ASM International, 1998, p. 95??114...

17

Flow visualization around cylinders in a channel flow using Particle Image Velocimetry  

E-Print Network (OSTI)

The objective of the undertaken study was to apply state-of the-art Particle Image Velocimetry to measure full field turbulent flow around cylinders, starting with one cylinder and eventually to a quad cylinder arrangement. Particle Image Velocimetry as used herein is identical to the techniques in use in Texas A&M University's Pulsed Laser Velocimetry Laboratory where the test facilities include a flow bench, a ND-YAG pulsed laser, and data acquistion equipment, consisting of a CCD camera and attendant PC's programmed to control the laser and camera, and to acquire and store the digitized data. The data can then be retrieved for analysis. The data was analyzed using an existing algorithm, the Cross Correlation Code. Full-field, fluid two-dimensional velocity around, about, and past the test specimens was obtained with the digital camera which captured the images of light reflected from seeds flowing within the fluid within a given time exposure time of 53.8 ms. The viewing field area (approximately 5 cm by 5 cm) was illuminated by two light sheets impinging on the test specimens from opposing sides at angles less than 90' from the horizontal. The impinging angles were selected to create the least amount of shading by the test specimen and the incident target on the test specimen was common to both light sheets so that they would superimpose on the target, thus reinforcing the illumination intensity. The two light sheets were created by splitting the pulsing beam into two beams, and then each beam directed with, and to, mirrors which were part of an optical train consisting of three cylindrical lenses which converted the beam into a light sheet 0.5 to 1.0mm thick and 5 cm wide. The test conditions had a range of from 0.043 to 0.0579 m/s for the average velocity of the fluid and a range of Reynolds number of 7142 to 8140. Given these test conditions, vector plots representing the flow fieldwere generated for one test run on each of the these specimens. The velocity component of the plotted vectors was derived from a scale within the plots. Thus, two-dimensional velocities could be read anywhere within the plots. A mix of quantitative and qualitative data was obtained for the one, two, three, and quad cylinder arrangement test specimens.

Martinez, Ramiro Serna

1994-01-01T23:59:59.000Z

18

B-Spline Image Model for Energy Minimization-Based Optical Flow Estimation  

Science Conference Proceedings (OSTI)

Robust estimation of the optical flow is addressed through a multiresolution energy minimization. It involves repeated evaluation of spatial and temporal gradients of image intensity which rely usually on bilinear interpolation and image filtering. We ... Keywords: Optical flow (OF), robust estimation, splines

G. Le Besnerais; F. Champagnat

2006-10-01T23:59:59.000Z

19

Enhancement of two-phase flow images obtained using dynamic neutron radiography  

E-Print Network (OSTI)

Though both film and video radiographic image techniques are available in neutron radiography, radiographic video cameras are commonly used to capture the dynamic flow patterns in a rapid sequence of images. These images may be useful to verify two-phase flow models in small diameter flow channels. An initial series of real-time neutron radiography experiments were performed at the Texas A&M University System, Texas Engineering Experiment Station, Nuclear Science Center Reactor (NSCR) to evaluate the effectiveness of various image enhancement algorithms and procedures, beneficial for visualization of two-phase water and air flow regimes through small diameter metal flow channels. After evaluating these initial images, research was conducted to improve the images coming from the camera and to evaluate the particular forms of enhancement. Contrast enhancement and smoothing filters were applied to improve the ability to visualize the flow regimes. Tracking algorithms were applied to gather flow information in the form of vector flow plots. Finally, Monte Carlo analysis was performed to test the possibility of gathering three dimensional data from two dimensional images.

Johns, Russell Craig

1995-01-01T23:59:59.000Z

20

Emissivity corrected infrared method for imaging anomalous structural heat flows  

DOE Patents (OSTI)

A method for detecting flaws in structures using dual band infrared radiation is disclosed. Heat is applied to the structure being evaluated. The structure is scanned for two different wavelengths and data obtained in the form of images. Images are used to remove clutter to form a corrected image. The existence and nature of a flaw is determined by investigating a variety of features. 1 fig.

Del Grande, N.K.; Durbin, P.F.; Dolan, K.W.; Perkins, D.E.

1995-08-22T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Phase-space representation of digital holographic and light field imaging with application to two-phase flows  

E-Print Network (OSTI)

In this thesis, two computational imaging techniques used for underwater research, in particular, two-phase flows measurements, are presented. The techniques under study, digital holographic imaging and light field imaging, ...

Tian, Lei, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

22

Optical flow image analysis of facial expressions of human emotion: forensic applications  

Science Conference Proceedings (OSTI)

The objective of this study was to induce emotions in individuals to determine if specific facial movements could be detected and analysed by the optical flow technique. This analysis is in the form of motion vector plots. The procedure ascertains if ... Keywords: emotion, facial expression, forensics, image analysis, optical flow, physiological measurement, surveillance

Carmen J. Duthoit; T. Sztynda; S. K. L. Lal; B. T. Jap; J. I. Agbinya

2008-01-01T23:59:59.000Z

23

A Functional Data-flow Architecture dedicated to Real-time Image Processing  

E-Print Network (OSTI)

This paper presents a data-flow computer developed at ETCA and dedicated to real-time image processing. Two types of data-driven processing elements, dedicated respectively to low and mid-level processings are integrated in a regular 3D array. Its design relies on a close integration of the data-flow architecture principles and the functional programming concept. Image processing data-flow graphs, first expressed using a functional syntax are directly mapped onto the processor array. The programming environment includes a complete FP-specification to network configuration compilation stream along with a global operator database. An experimental system, including 1024 low-level custom data-flow processors (6 x 25 MBytes/s, 50 million operations per second) and 12 T800 transputers , was built and several image processing algorithms were run in real time at digital video speed.

J. Srot; G. Qunot; B. Zavidovique

1993-01-01T23:59:59.000Z

24

Examples of Phase Diagrams  

Science Conference Proceedings (OSTI)

...The phase diagram of the lead-tin system ( Fig. 31 ) shows the importance of the low-melting eutectic in this system to the success of lead-tin solders. While solders having tin contents between 18.3 to 61.9%

25

Multiphase imaging of gas flow in a nanoporous material using  

E-Print Network (OSTI)

and transport, filtering or as reactors. We report a model study on silica aerogel using a time of the aerogel. The asymmetrical nature of the dispersion pattern alludes to the existence of a stationary and a flow regime in the aerogel. An exchange time constant is determined to characterize the gas transfer

Pines, Alexander

26

Towards a semantics of activity diagrams with semantic variation points  

Science Conference Proceedings (OSTI)

UML activity diagrams have become an established notation to model control and data flow on various levels of abstraction, ranging from fine-grained descriptions of algorithms to high-level workflow models in business applications. A formal semantics ...

Hans Grnniger; Dirk Rei; Bernhard Rumpe

2010-10-01T23:59:59.000Z

27

3 One-Line Diagram and Bus/Branch Model  

E-Print Network (OSTI)

One-line diagram and bus/branch model Ohms law Losses Kirchoffs law Power flow calculations (different model idealizations) Reference bus Power System & LMP Fundamentals WEM 301 2008 ISO New England Inc.

Eugene Litvinov Director; Marginal Loss Pricing; Market System; Major Components; Line Line; Line Line

2008-01-01T23:59:59.000Z

28

Casting Flow Chart  

Science Conference Proceedings (OSTI)

Figure: ...Fig. 1 Simplified flow diagram of the basic operations for producing a steel casting. Similar diagrams can be applied to other ferrous and nonferrous alloys produced by sand

29

Load diagram for a perforated plate tray  

E-Print Network (OSTI)

1 decimals noggrannhet c. Upprita i x,y-diagrammet q-linjen och bestäm (grafiskt, eller med must be produced. The feed stream F is a saturated liquid, i.e. q = 1, while the reflux ratio R = 1Load diagram for a perforated plate tray vG, vL: velocities G, L: densities QL, QG: volume flows H

Zevenhoven, Ron

30

Application of Neutron Imaging to InvestigateFlow Through Fractures for EGS  

SciTech Connect

This paper will describe ongoing efforts at Oak Ridge National Laboratory to develop a unique experimental capability for investigating flow through porous and fractured geological media using neutron imaging techniques. This capability is expected to support numerous areas of investigation associated with flow processes relevant to EGS including, but not limited to: experimental visualization and measurement of velocity profiles and other flow characteristics to better inform reduced-order modeling of flow through fractures; laboratory scale validation of flow models and simulators; and a 'real-time' tool for studying geochemical rock/fluid interactions by noninvasively measuring material effects such as precipitation and dissolution in EGS representative conditions. Neutron scattering and attenuation based techniques have many distinctive advantages over other radiographic imaging methods for studying certain types of physical processes because cold and thermal neutrons are more highly attenuated by materials with large Hydrogen compositions while they more easily penetrate higher Z materials, such as those used in structural applications. Experiments exploiting this behavior may therefore be devised to study flow behaviors in samples even when thick pressure vessel walls and large sample masses are present. The objective of this project is to develop an experimental setup and methodology for taking EGS representative core samples with engineered fractures and fracture features, subjecting them to a triaxial stress state at EGS representative temperatures (up to 300 degrees C), and pumping high pressure fluid through the sample while imaging and measuring fluid flow characteristics using high flux neutron beams. This effort will take advantage of signature Oak Ridge National Laboratory facilities, including the Spallation Neutron Source and High Flux Isotope Reactor, as well as its core expertise in Neutron Science. Towards this end, a geothermal pressure test cell and flow system has been developed that can accommodate 1.5 diameter, 6 long core samples and apply a radial confining pressure up to 10,000 psi with fluid flow pressures up to 5,000 psi. This cell has been specially designed to optimize the transmission of neutrons and permit improved imaging of the interior of the sample of interest. Proof of principle measurements of the system have been performed and will be discussed in this paper. Techniques for injecting fluid contrast agents to permit visualization and quantification of flow profiles are also being developed and will be described along with future development plans.

Polsky, Yarom [ORNL; Anovitz, Lawrence {Larry} M [ORNL; Bilheux, Hassina Z [ORNL; Bingham, Philip R [ORNL; Carmichael, Justin R [ORNL

2013-01-01T23:59:59.000Z

31

Development of a dynamic flow imaging phantom for dynamic contrast-enhanced CT  

Science Conference Proceedings (OSTI)

Purpose: Dynamic contrast enhanced CT (DCE-CT) studies with modeling of blood flow and tissue perfusion are becoming more prevalent in the clinic, with advances in wide volume CT scanners allowing the imaging of an entire organ with sub-second image frequency and sub-millimeter accuracy. Wide-spread implementation of perfusion DCE-CT, however, is pending fundamental validation of the quantitative parameters that result from dynamic contrast imaging and perfusion modeling. Therefore, the goal of this work was to design and construct a novel dynamic flow imaging phantom capable of producing typical clinical time-attenuation curves (TACs) with the purpose of developing a framework for the quantification and validation of DCE-CT measurements and kinetic modeling under realistic flow conditions. Methods: The phantom is based on a simple two-compartment model and was printed using a 3D printer. Initial analysis of the phantom involved simple flow measurements and progressed to DCE-CT experiments in order to test the phantoms range and reproducibility. The phantom was then utilized to generate realistic input TACs. A phantom prediction model was developed to compute the input and output TACs based on a given set of five experimental (control) parameters: pump flow rate, injection pump flow rate, injection contrast concentration, and both control valve positions. The prediction model is then inversely applied to determine the control parameters necessary to generate a set of desired input and output TACs. A protocol was developed and performed using the phantom to investigate image noise, partial volume effects and CT number accuracy under realistic flow conditionsResults: This phantom and its surrounding flow system are capable of creating a wide range of physiologically relevant TACs, which are reproducible with minimal error between experiments ({sigma}/{mu} < 5% for all metrics investigated). The dynamic flow phantom was capable of producing input and output TACs using either step function based or typical clinical arterial input function (AIF) inputs. The measured TACs were in excellent agreement with predictions across all comparison metrics with goodness of fit (R{sup 2}) for the input function between 0.95 and 0.98, while the maximum enhancement differed by no more than 3.3%. The predicted output functions were similarly accurate producing R{sup 2} values between 0.92 and 0.99 and maximum enhancement to within 9.0%. The effect of ROI size on the arterial input function (AIF) was investigated in order to determine an operating range of ROI sizes which were minimally affected by noise for small dimensions and partial volume effects for large dimensions. It was possible to establish the measurement sensitivity of both the Toshiba (ROI radius range from 1.5 to 3.2 mm ''low dose'', 1.4 to 3.0 mm ''high dose'') and GE scanner (1.5 to 2.6 mm ''low dose'', 1.1 to 3.4 mm ''high dose''). This application of the phantom also provides the ability to evaluate the effect of the AIF error on kinetic model parameter predictions. Conclusions: The dynamic flow imaging phantom is capable of producing accurate and reproducible results which can be predicted and quantified. This results in a unique tool for perfusion DCE-CT validation under realistic flow conditions which can be applied not only to compare different CT scanners and imaging protocols but also to provide a ground truth across multimodality dynamic imaging given its MRI and PET compatibility.

Driscoll, B.; Keller, H.; Coolens, C. [Department of Radiation Physics, Princess Margaret Hospital, 610 University Avenue, Toronto, Ontario M5G 2M9 (Canada)

2011-08-15T23:59:59.000Z

32

Multiphase imaging of gas flow in a nanoporous material usingremote detection NMR  

Science Conference Proceedings (OSTI)

Pore structure and connectivity determine how microstructured materials perform in applications such as catalysis, fluid storage and transport, filtering, or as reactors. We report a model study on silica aerogel using a recently introduced time-of-flight (TOF) magnetic resonance imaging technique to characterize the flow field and elucidate the effects of heterogeneities in the pore structure on gas flow and dispersion with Xe-129 as the gas-phase sensor. The observed chemical shift allows the separate visualization of unrestricted xenon and xenon confined in the pores of the aerogel. The asymmetrical nature of the dispersion pattern alludes to the existence of a stationary and a flow regime in the aerogel. An exchange time constant is determined to characterize the gas transfer between them. As a general methodology, this technique provides new insights into the dynamics of flow in porous media where multiple phases or chemical species may be present.

Harel, Elad; Granwehr, Josef; Seeley, Juliette A.; Pines, Alex

2005-10-03T23:59:59.000Z

33

Another View of Phase Diagrams  

Science Conference Proceedings (OSTI)

On 2D phase fraction charts these are lines where the fraction equals one. However another type of diagram can be drawn using lines where the phase fraction...

34

Bibliographic notes on Voronoi diagrams  

Science Conference Proceedings (OSTI)

... 4. F. Aurenhammer, Power diagrams: properties, algorithms and ... in the discrete universe of grid points in the ... and by reflecting each extension in the ...

35

Integrating Transputer Arrays within a Data-Flow Architecture: Applications in Real-time Image Processing  

E-Print Network (OSTI)

. This paper presents a Data Flow Functional Computer (DFFC) developed at ETCA and dedicated to real-time image processing. One original feature of this computer lies in the integration both at the hardware and software level of two types of data-driven processing elements: 1024 custom Data Flow Processor (DFP) -- embedded in a 3D interconnected network and dedicated to low level processing and 36 T800 Transputers -- embedded in a 2D interconnected networks and dedicated to mid to high level processing. A unifying programming model is provided, based on a close integration of the data-flow architecture principles and the functional programming concepts. An image processing algorithm, expressed using an FP-like functional syntax is first converted into a Data-flow Graph (DFG). The nodes of this graph are real time operators implementable on the physical processors of the data-flow machine. This DFG is then physically mapped onto the network of processors. The programming en...

Olivier Eckl; Jocelyn Srot; Georges Qunot; E Jocelyn S; Erot Georges Qu

1994-01-01T23:59:59.000Z

36

Formal interpreters for diagram notations  

Science Conference Proceedings (OSTI)

The article proposes an approach for defining extensible and flexible formal interpreters for diagram notations with significant dynamic semantics. More precisely, it addresses semi-formal diagram notations that have precisely-defined syntax, but informally ... Keywords: Semi-formal notations, graph transformation, high-level Petri nets, semantics

Luciano Baresi; Mauro Pezz

2005-01-01T23:59:59.000Z

37

Imaging Fluid Flow in Geothermal Wells Using Distributed Thermal Perturbation Sensing  

SciTech Connect

The objective of Task 2 is to develop a numerical method for the efficient and accurate analysis of distributed thermal perturbation sensing (DTPS) data for (1) imaging flow profiles and (2) in situ determination of thermal conductivities and heat fluxes. Numerical forward and inverse modeling is employed to: (1) Examine heat and fluid flow processes near a geothermal well under heating and cooling conditions; (2) Demonstrate ability to interpret DTPS thermal profiles with acceptable estimation uncertainty using inverse modeling of synthetic temperature data; and (3) Develop template model and analysis procedure for the inversion of temperature data collected during a thermal perturbation test using fiber-optic distributed temperature sensors. This status report summarizes initial model developments and analyses.

Freifeld, B.; Finsterle, S.

2010-12-10T23:59:59.000Z

38

Algebric Decision Diagrams and Their Applications  

Science Conference Proceedings (OSTI)

In this paper we present theory and experimental results on Algebraic Decision Diagrams. These diagrams extend BDDs by allowing values from an arbitrary finite domain to be associated with the terminal nodes of the diagram. We present a treatment ... Keywords: decision diagrams, graph algorithms, linear algebra

R. I. Bahar; E. A. Frohm; C. M. Gaona; G. D. Hachtel; E. Macii; A. Pardo; F. Somenzi

1997-04-01T23:59:59.000Z

39

Business Case Slide 7: High-Volume: Repository - Diagram  

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

Diagram Previous Slide Next Slide Table of Contents High-Volume: Repository - Diagram Repository Tunnel Components...

40

Solar cycle variations of large scale flows in the Sun  

E-Print Network (OSTI)

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

Sarbani Basu; H. M. Antia

2000-01-17T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Seismic imaging of reservoir flow properties: Time-lapse amplitude changes  

Science Conference Proceedings (OSTI)

Asymptotic methods provide an efficient means by which to infer reservoir flow properties, such as permeability, from time-lapse seismic data. A trajectory-based methodology, much like ray-based methods for medical and seismic imaging, is the basis for an iterative inversion of time-lapse amplitude changes. In this approach a single reservoir simulation is required for each iteration of the algorithm. A comparison between purely numerical and the trajectory-based sensitivities demonstrates their accuracy. An application to a set of synthetic amplitude changes indicates that they can recover large-scale reservoir permeability variations from time-lapse data. In an application of actual time-lapse amplitude changes from the Bay Marchand field in the Gulf of Mexico we are able to reduce the misfit by 81% in twelve iterations. The time-lapse observations indicate lower permeabilities are required in the central portion of the reservoir.

Vasco, D.W.; Datta-Gupta, Akhil; Behrens, Ron; Condon, Pat; Rickett, Jame s

2003-03-13T23:59:59.000Z

42

Investigating capillary pressure and interfacial area for multiphase flow in porous media using pore-scale imaging and lattice-Boltzmann modeling.  

E-Print Network (OSTI)

??Recent advances in imaging technology and numerical modeling have greatly enhanced pore-scale investigations of multiphase flow and transport in porous media. It is now feasible (more)

[No author

2008-01-01T23:59:59.000Z

43

Reasoning on temporal class diagrams: Undecidability results  

Science Conference Proceedings (OSTI)

This paper introduces a temporal class diagram language useful to model temporal varying data. The atemporal portion of the language contains the core constructors available in both EER diagrams and UML class diagrams. The temporal part of the language ... Keywords: computer science, database theory, description logics, knowledge representation, temporal data models, temporal logics

Alessandro Artale

2006-03-01T23:59:59.000Z

44

Nanoscale Pore Imaging and Pore Scale Fluid Flow Modeling in Chalk  

E-Print Network (OSTI)

NTRODUCTION To model multiphase flow in porous media at porein porous media - pore-network models and multiphase flow,porous microstructures. International Journal of Multiphase

Tomutsa, Liviu; Silin, Dmitriy

2004-01-01T23:59:59.000Z

45

Nanometer-scale imaging and pore-scale fluid flow modeling in chalk  

E-Print Network (OSTI)

pores. To model multiphase flow in porous media at porein porous media - pore-network models and multiphase flow,porous microstructures. International Journal of Multiphase

Tomutsa, Liviu; Silin, Dmitriy; Radmilovich, Velimir

2005-01-01T23:59:59.000Z

46

Multiphase imaging of gas flow in a nanoporous material using remote detection NMR  

E-Print Network (OSTI)

pore structure on gas flow and dispersion with 129 Xe as thedominates the free gas flow, and dispersion is mainly due toinlet data. B. Dispersion of occluded gas in the center of

Harel, Elad; Granwehr, Josef; Seeley, Juliette A.; Pines, Alex

2005-01-01T23:59:59.000Z

47

Application of Phase Diagram Calculation to Accelerated ...  

Science Conference Proceedings (OSTI)

Presentation Title, Application of Phase Diagram Calculation to Accelerated Development of Mo-Si-B Based Alloys. Author(s), Ying Yang, H Bei, Shuanglin...

48

Continuous Heating Dissolution Diagrams of Aluminum Alloys  

Science Conference Proceedings (OSTI)

The method developed by Milkereit et al. [Milkereit et al. 2009] for quenching experiments can be used, to establish continuous heating dissolution diagrams.

49

Database Design Using Entity-Relationship Diagrams  

Science Conference Proceedings (OSTI)

With this comprehensive guide, database designers and developers can quickly learn all the ins and outs of E-R diagramming to become expert database designers.

Sikha Bagui; Richard Earp

2003-06-01T23:59:59.000Z

50

State energy flow patterns. [All 50 states  

SciTech Connect

Highly visual and self-explanatory 1975 energy flow diagrams are presented for each of the 50 states and for the entire United States. Each diagram illustrates the energy produced and how it is consumed or lost. The diagrams are meant to serve as a convenient and useful reference (or starting point) for consideration of energy-related problems.

Kidman, R.B.; Barrett, R.J.

1977-01-01T23:59:59.000Z

51

PARTICLE IMAGE VELOCIMETRY MEASUREMENTS IN A REPRESENTATIVE GAS-COOLED PRISMATIC REACTOR CORE MODEL: FLOW IN THE COOLANT CHANNELS AND INTERSTITIAL BYPASS GAPS  

Science Conference Proceedings (OSTI)

Core bypass flow is one of the key issues with the prismatic Gas Turbine-Modular Helium Reactor, and it refers to the coolant that navigates through the interstitial, non-cooling passages between the graphite fuel blocks instead of traveling through the designated coolant channels. To determine the bypass flow, a double scale representative model was manufactured and installed in the Matched Index-of-Refraction flow facility; after which, stereo Particle Image Velocimetry (PIV) was employed to measure the flow field within. PIV images were analyzed to produce vector maps, and flow rates were calculated by numerically integrating over the velocity field. It was found that the bypass flow varied between 6.9-15.8% for channel Reynolds numbers of 1,746 and 4,618. The results were compared to computational fluid dynamic (CFD) pre-test simulations. When compared to these pretest calculations, the CFD analysis appeared to under predict the flow through the gap.

Thomas E. Conder; Richard Skifton; Ralph Budwig

2012-11-01T23:59:59.000Z

52

Image analysis algorithms for estimating porous media multiphase flow variables from computed microtomography data: a validation study  

Science Conference Proceedings (OSTI)

Image analysis of three-dimensional microtomographic image data has become an integral component of pore scale investigations of multiphase flow through porous media. This study focuses on the validation of image analysis algorithms for identifying phases and estimating porosity, saturation, solid surface area, and interfacial area between fluid phases from gray-scale X-ray microtomographic image data. The data used in this study consisted of (1) a two-phase high precision bead pack from which porosity and solid surface area estimates were obtained and (2) three-phase cylindrical capillary tubes of three different radii, each containing an air-water interface, from which interfacial area was estimated. The image analysis algorithm employed here combines an anisotropic diffusion filter to remove noise from the original gray-scale image data, a k-means cluster analysis to obtain segmented data, and the construction of isosurfaces to estimate solid surface area and interfacial area. Our method was compared with laboratory measurements, as well as estimates obtained from a number of other image analysis algorithms presented in the literature. Porosity estimates for the two-phase bead pack were within 1.5% error of laboratory measurements and agreed well with estimates obtained using an indicator kriging segmentation algorithm. Additionally, our method estimated the solid surface area of the high precision beads within 10% of the laboratory measurements, whereas solid surface area estimates obtained from voxel counting and two-point correlation functions overestimated the surface area by 20--40%. Interfacial area estimates for the air-water menisci contained within the capillary tubes were obtained using our image analysis algorithm, and using other image analysis algorithms, including voxel counting, two-point correlation functions, and the porous media marching cubes. Our image analysis algorithm, and other algorithms based on marching cubes, resulted in errors ranging from 1% to 20% of the analytical interfacial area estimates, whereas voxel counting and two-point correlation functions overestimated the analytical interfacial area by 20--40%. In addition, the sensitivity of the image analysis algorithms on the resolution of the microtomographic image data was investigated, and the results indicated that there was little or no improvement in the comparison with laboratory estimates for the resolutions and conditions tested.

Porter, Mark L.; Wildenschild, Dorthe; (Oregon State U.)

2010-09-03T23:59:59.000Z

53

Use of influence diagrams in gas transfer system option prioritization  

DOE Green Energy (OSTI)

A formal decision-analysis methodology was applied to aid the Department of Energy (DOE) in deciding which of several gas transfer system (GTS) options should be selected. The decision objectives for this case study, i.e., risk and cost, were directly derived from the DOE guidelines. Influence diagrams were used to define the structure of the decision problem and clearly delineate the flow if information. A set of performance matrices wee used in conjunction with the influence diagrams to assess and evaluate the degree to which the objectives of the case study were met. These performance measures were extracted from technical models, design and operating data, and professional judgments. The results were aggregated to provide an overall evaluation of the different design options of the gas transfer system. Consequently, the results of this analysis were used as an aid to DOE to select a viable GTS option.

Heger, A.S. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemical and Nuclear Engineering; Garcia, M.D. [Los Alamos National Lab., NM (United States)

1995-08-01T23:59:59.000Z

54

Efficiently approximating query optimizer plan diagrams  

Science Conference Proceedings (OSTI)

Given a parametrized n-dimensional SQL query template and a choice of query optimizer, a plan diagram is a color-coded pictorial enumeration of the execution plan choices of the optimizer over the query parameter space. These diagrams have proved to ...

Atreyee Dey; Sourjya Bhaumik; Harish D; Jayant R. Haritsa

2008-08-01T23:59:59.000Z

55

Multiphase imaging of gas flow in a nanoporous material using remote detection NMR  

E-Print Network (OSTI)

D.P. Weitekamp, Zero field NMR and NQR, J. Chem. Phys.Amplification of xenon NMR and MRI by remote detection,of silica aerogels by 129 Xe NMR spectroscopy and imaging,

Harel, Elad; Granwehr, Josef; Seeley, Juliette A.; Pines, Alex

2005-01-01T23:59:59.000Z

56

Anisotropic voronoi diagrams and guaranteed-quality anisotropic mesh generation  

Science Conference Proceedings (OSTI)

We introduce anisotropic Voronoi diagrams, a generalization of multiplicatively weighted Voronoi diagrams suitable for generating guaranteed-quality meshes of domains in which long, skinny triangles are required, and where the desired anisotropy ... Keywords: anisotropic Voronoi diagram, anisotropic mesh generation

Francois Labelle; Jonathan Richard Shewchuk

2003-06-01T23:59:59.000Z

57

Increasing the Reliability of Reliability Diagrams  

Science Conference Proceedings (OSTI)

The reliability diagram is a common diagnostic graph used to summarize and evaluate probabilistic forecasts. Its strengths lie in the ease with which it is produced and the transparency of its definition. While visually appealing, major long-...

Jochen Brcker; Leonard A. Smith

2007-06-01T23:59:59.000Z

58

155 Phase Diagram of Tetragonal Tungsten Bronze Material  

Science Conference Proceedings (OSTI)

We studied the different possibilities of the phase diagram according to the values of the Landau coefficients. The obtained phase diagram is compared with

59

Fluctuations and the QCD phase diagram  

SciTech Connect

In this contribution the role of quantum fluctuations for the QCD phase diagram is discussed. This concerns in particular the importance of the matter back-reaction to the gluonic sector. The impact of these fluctuations on the location of the confinement/deconfinement and the chiral transition lines as well as their interrelation are investigated. Consequences of our findings for the size of a possible quarkyonic phase and location of a critical endpoint in the phase diagram are drawn.

Schaefer, B.-J., E-mail: bernd-jochen.schaefer@uni-graz.at [Karl-Franzens-Universitaet, Institut fuer Physik (Austria)

2012-06-15T23:59:59.000Z

60

QCD Phase Diagram with Imaginary Chemical Potential  

E-Print Network (OSTI)

We report our recent results on the QCD phase diagram obtained from the lattice QCD simulation. The location of the phase boundary between hadronic and QGP phases in the two-flavor QCD phase diagram is investigated. The imaginary chemical potential approach is employed, which is based on Monte Carlo simulations of the QCD with imaginary chemical potential and analytic continuation to the real chemical potential region.

Nagata, Keitaro

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Order-of-Magnitude Influence Diagrams  

E-Print Network (OSTI)

In this paper, we develop a qualitative theory of influence diagrams that can be used to model and solve sequential decision making tasks when only qualitative (or imprecise) information is available. Our approach is based on an order-of-magnitude approximation of both probabilities and utilities and allows for specifying partially ordered preferences via sets of utility values. We also propose a dedicated variable elimination algorithm that can be applied for solving order-of-magnitude influence diagrams.

Marinescu, Radu

2012-01-01T23:59:59.000Z

62

MULTIDISCIPLINARY IMAGING OF ROCK PROPERTIES IN CARBONATE RESERVOIRS FOR FLOW-UNIT TARGETING  

Science Conference Proceedings (OSTI)

Despite declining production rates, existing reservoirs in the US contain large quantities of remaining oil and gas that constitute a huge target for improved diagnosis and imaging of reservoir properties. The resource target is especially large in carbonate reservoirs, where conventional data and methodologies are normally insufficient to resolve critical scales of reservoir heterogeneity. The objectives of the research described in this report were to develop and test such methodologies for improved imaging, measurement, modeling, and prediction of reservoir properties in carbonate hydrocarbon reservoirs. The focus of the study is the Permian-age Fullerton Clear Fork reservoir of the Permian Basin of West Texas. This reservoir is an especially appropriate choice considering (a) the Permian Basin is the largest oil-bearing basin in the US, and (b) as a play, Clear Fork reservoirs have exhibited the lowest recovery efficiencies of all carbonate reservoirs in the Permian Basin.

Stephen C. Ruppel

2005-02-01T23:59:59.000Z

63

EIA - Natural Gas Pipeline Network - Expansion Process Flow Diagram  

Annual Energy Outlook 2012 (EIA)

Natural Gas based on data through 20072008 with selected updates Development and Expansion Process For Natural Gas Pipeline Projects Figure showing the expansion process...

64

3D conforming power diagrams for radial LGR in CPG reservoir grids  

Science Conference Proceedings (OSTI)

Mesh generation becomes a crucial step in reservoir flow simulation of new generation. The mesh must faithfully represent the architecture of the reservoir and its heterogeneity. In (Flandrin et al. in IJNME 65(10):16391672, 2006) a three-dimensional ... Keywords: CPG grids, Hybrid mesh, Local grid refinement, PEBI grids, Power diagrams, Reservoir simulation

C. Bennis; H. Borouchaki; N. Flandrin

2008-06-01T23:59:59.000Z

65

Richard P. Feynman and the Feynman Diagrams  

Office of Scientific and Technical Information (OSTI)

Richard P. Feynman and the Feynman Diagrams Richard P. Feynman and the Feynman Diagrams Feynman Honored · Resources with Additional Information Richard P. Feynman Courtesy AIP Emilio Segrè Visual Archives, Weber Collection 'Feynman remade quantum electrodynamics-the theory of the interaction between light and matter-and thus altered the way science understands the nature of waves and particles. He was co-awarded the Nobel Prize for Physics in 1965 for this work, which tied together in an experimentally perfect package all the varied phenomena at work in light, radio, electricity, and magnetism. ... The problem-solving tools that he invented-including pictorial representations of particle interactions known as Feynman diagrams-permeated many areas of theoretical physics in the second half of the 20th century.'

66

Seismic imaging of reservoir flow properties: Resolving waterinflux and reservoir permeability  

SciTech Connect

Methods for geophysical model assessment, in particuale thecomputation of model parameter resolution, indicate the value and thelimitations of time-lapse data in estimating reservoir flow properties. Atrajectory-based method for computing sensitivities provides an effectivemeans to compute model parameter resolutions. We examine the commonsituation in which water encroaches into a resrvoir from below, as due tothe upward movement of an oil-water contact. Using straight-forwardtechniques we find that, by inclusing reflections off the top and bottomof a reservoir tens of meters thick, we can infer reservoir permeabilitybased upon time-lapse data. We find that, for the caseof water influxfrom below, using multiple time-lapse 'snapshots' does not necessarilyimprove the resolution of reservoir permeability. An application totime-lapse data from the Norne field illustrates that we can resolve thepermeability near a producing well using reflections from threeinterfaces associated with the reservoir.

Vasco, D.W.; Keers, Henk

2006-11-27T23:59:59.000Z

67

If-Diagrams: Theory and Application  

E-Print Network (OSTI)

This paper presents a novel algebra of logic that generalizes the traditional Boolean algebra for partial (incompletely specified) variables and functions and is efficiently used to solve a lot of theoretical and practical optimization problems. Based on the logic, novel operations (including a very useful minimization operation), laws, and expansions are introduced. The logic allows generalizations of the traditional Boolean function representation forms. One of the most important generalization for BDDs is If-Diagrams (IFDs). The paper presents operations on the IFDs and diagram application fields. The theoretical results are used in a software implemented on Prolog for an IBM PC platform.

Anatoly Prihozhy State

1997-01-01T23:59:59.000Z

68

Development and Implementation of 3-D, High Speed Capacitance Tomography for Imaging Large-Scale, Cold-Flow Circulating Fluidized Bed  

SciTech Connect

A detailed understanding of multiphase flow behavior inside a Circulating Fluidized Bed (CFB) requires a 3-D technique capable of visualizing the flow field in real-time. Electrical Capacitance Volume Tomography (ECVT) is a newly developed technique that can provide such measurements. The attractiveness of the technique is in its low profile sensors, fast imaging speed and scalability to different section sizes, low operating cost, and safety. Moreover, the flexibility of ECVT sensors enable them to be designed around virtually any geometry, rendering them suitable to be used for measurement of solid flows in exit regions of the CFB. Tech4Imaging LLC has worked under contract with the U.S. Department of Energy??s National Energy Technology Laboratory (DOE NETL) to develop an ECVT system for cold flow visualization and install it on a 12 inch ID circulating fluidized bed. The objective of this project was to help advance multi-phase flow science through implementation of an ECVT system on a cold flow model at DOE NETL. This project has responded to multi-phase community and industry needs of developing a tool that can be used to develop flow models, validate computational fluid dynamics simulations, provide detailed real-time feedback of process variables, and provide a comprehensive understating of multi-phase flow behavior. In this project, a complete ECVT system was successfully developed after considering different potential electronics and sensor designs. The system was tested at various flow conditions and with different materials, yielding real-time images of flow interaction in a gas-solid flow system. The system was installed on a 12 inch ID CFB of the US Department of Energy, Morgantown Labs. Technical and economic assessment of Scale-up and Commercialization of ECVT was also conducted. Experiments conducted with larger sensors in conditions similar to industrial settings are very promising. ECVT has also the potential to be developed for imaging multi-phase flow systems in high temperature and high pressure conditions, typical in many industrial applications.

Qussai Marashdeh

2012-09-30T23:59:59.000Z

69

A reverse engineering tool for precise class diagrams  

Science Conference Proceedings (OSTI)

Developers use class diagrams to describe the architecture of their programs intensively. Class diagrams represent the structure and global behaviour of programs. They show the programs classes and interfaces and their relationships of inheritance, instantiation, ...

Yann-Gal Guhneuc

2004-10-01T23:59:59.000Z

70

Time and Tide Wait for No Diagram  

E-Print Network (OSTI)

Time plays an important role in some application domains, and can be quite difficult to deal with in diagrams. This is not only true for temporal uncertainty, but also for periodic events. We compare nine different representations that include a notion of time or that are mainly used for temporal information: Time Lines/LifeLines, AsbruView, Gantt- and PERT-Charts, Shinkansen timetables, Temporal Objects, Sets of Possible Occurrences (SOPOs), the Time Cube and Concentric Circles. Features of the different methods are presented and compared to other representations. This paper is meant to help the designer of a diagram or visualization who has to deal with time get an overview over different design ideas, and maybe get an inspiration for their own ideas. Keywords Information Visualization, Time in Problem Solving Methods, Knowledge Acquisition, Knowledge Engineering and Modeling Methodologies

Robert Kosara; Peter Messner; Silvia Miksch

2001-01-01T23:59:59.000Z

71

The QCD phase diagram: Results and challenges  

Science Conference Proceedings (OSTI)

I review the progress made in recent years with functional methods in our understanding of the QCD phase diagram. In particular I discuss a renormalisation group approach to QCD at finite temperature and chemical potential. Results include the location of the confinement-deconfinement phase transition/cross-over and the chiral phase transition/cross-over lines, their nature as well as their interrelation, and thermodynamic observables.

Pawlowski, Jan M. [Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, 69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI, Planckstr. 1, 64291 Darmstadt (Germany)

2011-05-23T23:59:59.000Z

72

Worldline Green Functions for Arbitrary Feynman Diagrams  

E-Print Network (OSTI)

We propose a general method to obtain the scalar worldline Green function on an arbitrary 1D topological space, with which the first-quantized method of evaluating 1-loop Feynman diagrams can be generalized to calculate arbitrary ones. The electric analog of the worldline Green function problem is found and a compact expression for the worldline Green function is given, which has similar structure to the 2D bosonic Green function of the closed bosonic string.

Peng Dai; Warren Siegel

2006-08-09T23:59:59.000Z

73

Mixed wasted integrated program: Logic diagram  

SciTech Connect

The Mixed Waste Integrated Program Logic Diagram was developed to provide technical alternative for mixed wastes projects for the Office of Technology Development`s Mixed Waste Integrated Program (MWIP). Technical solutions in the areas of characterization, treatment, and disposal were matched to a select number of US Department of Energy (DOE) treatability groups represented by waste streams found in the Mixed Waste Inventory Report (MWIR).

Mayberry, J.; Stelle, S. [Science Applications International Corp., Idaho Falls, ID (United States); O`Brien, M. [Univ. of Arizona, Tucson, AZ (United States); Rudin, M. [Univ. of Nevada, Las Vegas, NV (United States); Ferguson, J. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); McFee, J. [I.T. Corp., Albuquerque, NM (United States)

1994-11-30T23:59:59.000Z

74

THE EXPERIMENTALLY VALIDATED Mg-C PHASE DIAGRAM AND ...  

Science Conference Proceedings (OSTI)

Jul 20, 2012 ... CARBON IN MG ALLOYS: THE EXPERIMENTALLY VALIDATED Mg-C PHASE DIAGRAM AND THERMODYNAMIC CALCULATIONS IN...

75

Density-Enthalpy Phase Diagram 0D Boiler Simulation  

E-Print Network (OSTI)

Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research Finite Transitions #12;Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research;Density-Enthalpy Phase Diagram 0D Boiler Simulation Finite Element Method Further Research Goal

Vuik, Kees

76

Imaging  

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

Imaging Print Imaging Print The wavelengths of soft x-ray photons (1-15 nm) are very well matched to the creation of "nanoscopes" capable of probing the interior structure of biological cells and inorganic mesoscopic systems.Topics addressed by soft x-ray imaging techniques include cell biology, nanomagnetism, environmental science, and polymers. The tunability of synchrotron radiation is absolutely essential for the creation of contrast mechanisms. Cell biology CAT scans are performed in the "water window" (300-500 eV). Nanomagnetism studies require the energy range characteristic of iron, cobalt, and nickel (600-900 eV). Mid- and far-infrared (energies below 1 eV) microprobes using synchrotron radiation are being used to address problems such as chemistry in biological tissues, chemical identification and molecular conformation, environmental biodegradation, mineral phases in geological and astronomical specimens, and electronic properties of novel materials. Infrared synchrotron radiation is focused through, or reflected from, a small spot on the specimen and then analyzed using a spectrometer. Tuning to characteristic vibrational frequencies serves as a sensitive fingerprint for molecular species. Images of the various species are built up by raster scanning the specimen through the small illuminated spot.

77

Feynman diagrams versus Feynman quantum emulator  

E-Print Network (OSTI)

Precise understanding of strongly interacting fermions, from electrons in modern materials to nuclear matter, presents a major goal in modern physics. However, the theoretical description of interacting Fermi systems is usually plagued by the intricate quantum statistics at play. Here we present a cross-validation between a new theoretical approach, Bold Diagrammatic Monte Carlo (BDMC), and precision experiments on ultra-cold atoms. Specifically, we compute and measure with unprecedented accuracy the normal-state equation of state of the unitary gas, a prototypical example of a strongly correlated fermionic system. Excellent agreement demonstrates that a series of Feynman diagrams can be controllably resummed in a non-perturbative regime using BDMC. This opens the door to the solution of some of the most challenging problems across many areas of physics.

Van Houcke, K; Kozik, E; Prokofev, N; Svistunov, B; Ku, M; Sommer, A; Cheuk, L W; Schirotzek, A; Zwierlein, M W

2011-01-01T23:59:59.000Z

78

The Plutonium-Copper Phase Diagram  

SciTech Connect

The constitution of the plutonium-copper binary alloy as determined by differential thermal analysis is presented. The system is characterized by two congruent melting compounds, PuCu2 (m.p. 865 degrees C.) and Pu4Cu17 (m.p. 954 degrees C.); two incongruent melting compounds, PuCu4 (m.p. 906 degrees C.) and Pu2Cu11 (m.p. 926 degrees C.); three eutectics, 96 atom per cent copper (m.p. 626 degrees), 70.5 atom per cent copper (m.p. 849 degrees C.), and 91 atom per cent copper (m.p. 881 degrees C.); and two peritectics at 75 atom per cent (m.p. 906 degrees C.) and 85.5 atom per cent (m.p. 926 degrees C.). Solid solution was found above 97 atom per cent plutonium. The apparatus, the method of investigation, and the binary alloy phase diagram is discussed.

Rhinehammer, T. B.; Etter, D. E.; Jones, L. V.

1960-01-01T23:59:59.000Z

79

The Geometry of General Phase Diagram Sections - Programmaster ...  

Science Conference Proceedings (OSTI)

It is shown that all proper phase diagram sections obey the same simple set of geometrical rules, and the choices of axes and constants that ensure that a...

80

Phase diagram of hot quark matter under magnetic field  

Science Conference Proceedings (OSTI)

I review the computation of the phase diagram of hot quark matter in strong magnetic field, at zero baryon density, within an effective model of Quantum Chromodynamics.

Ruggieri, Marco [Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

2010-12-22T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Appendix I. Using PANDAT to Calculate Phase Diagrams  

Science Conference Proceedings (OSTI)

After installing the software PANDAT in a personal computer (PC) and loading a thermodynamic database of interest, we can start to calculate phase diagrams.

82

Binary Equilibrium Phase Diagrams and the Third Law of ...  

Science Conference Proceedings (OSTI)

I will make suggestions of probable configurations of binary phase diagrams at low temperatures. This leads to an expansion of the concept of improbable...

83

Commercial Alloy Phase Diagrams and Their Industrial Applications  

Science Conference Proceedings (OSTI)

A phase diagram thus plays an important role in understanding the microstructure developed and the ultimate performance of a material. In this presentation, we...

84

Combinatorics of Arc Diagrams, Ferrers Fillings, Young ... - CECM  

E-Print Network (OSTI)

Jul 22, 2009 ... I Generalization of permutation matrices: fill each row & column of a Ferrers shape ... Standard Young Tableaux. Arc Diagrams,. Nesting and.

85

Alaska NAD 83 Official Protraction Diagram (OPD) Outlines | Data...  

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

NAD 83 Official Protraction Diagram (OPD) Outlines Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean ...

86

Alaska NAD 83 Official Protraction Diagram (OPD) Outlines (clipped...  

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

Official Protraction Diagram (OPD) Outlines (clipped) Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov Communities Ocean ...

87

Active and Passive Remote Sensing Diagram | Open Energy Information  

Open Energy Info (EERE)

2013 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Active and Passive Remote Sensing Diagram Citation National Aeronautics and...

88

Conformal and projection diagrams in LaTeX  

E-Print Network (OSTI)

In general relativity, the causal structure of space-time may sometimes be depicted by conformal Carter-Penrose diagrams or a recent extension of these - the projection diagrams. The introduction of conformal diagrams in the sixties was one of the progenitors of the golden age of relativity. They are the key ingredient of many scientific papers. Unfortunately, drawing them in the form suitable for LaTeX documents is time-consuming and not easy. We present below a library that allows one to draw an arbitrary conformal diagram in a few simple steps.

Christa R. lz; Sebastian J. Szybka

2013-05-09T23:59:59.000Z

89

Heart wall velocimetry and exogenous contrast-based cardiac flow imaging in Drosophila melanogaster using Doppler optical coherence tomography  

E-Print Network (OSTI)

Drosophila melanogaster (fruit fly) is a central organism in biology and is becoming increasingly important in the cardiovascular sciences. Prior work in optical imaging of the D. melanogaster heart has focused on static ...

Choma, Michael A.

90

Signed enumeration of ribbon tableaux: an approach through growth diagrams  

Science Conference Proceedings (OSTI)

We give an extension of the famous Schensted correspondence to the case of ribbon tableaux, where ribbons are allowed to be of different sizes. This is done by extending Fomin's growth diagram approach of the classical correspondence, in particular by ... Keywords: Garsia---Milne involution principle, Growth diagrams, Murnaghan---Nakayama rule, RSK correspondence, Ribbon tableaux

Dominique Gouyou-Beauchamps; Philippe Nadeau

2012-08-01T23:59:59.000Z

91

QCD Phase Diagram Using Dyson-Schwinger Equations  

Science Conference Proceedings (OSTI)

We describe briefly the Dyson-Schwinger equation approach of QCD and the study of the QCD phase diagram in this approach. The phase diagram in terms of the temperature and chemical potential, and that in the space of coupling strength and current-quark mass are given.

Liu Yuxin; Qin Sixue; Chang Lei [Department of Physics, Center for High Energy Physics and the State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China); Roberts, Craig D. [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Department of Physics, Center for High Energy Physics and the State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

2011-05-24T23:59:59.000Z

92

Debugging Concurrent Software: A Study Using Multithreaded Sequence Diagrams  

Science Conference Proceedings (OSTI)

Concurrent software is notoriously difficult to debug. We investigate the use of UML sequence diagrams to help developers correctly reason about the potential behaviors of buggy concurrent software. We conducted a controlled experiment that compared ... Keywords: concurrent software, empirical software engineering, UML sequence diagrams

Scott D. Fleming; Eileen Kraemer; R. E. K. Stirewalt; Laura K. Dillon

2010-09-01T23:59:59.000Z

93

Dynamic minimization of word-level decision diagrams  

Science Conference Proceedings (OSTI)

Word-Level Decision Diagrams (WLDDs), like *BMDs and K*BMDs, have recently been introduced as a data structure for verification. The size of WLDDs largely depends on the chosen variable ordering, i.e. the ordering in which variables are encountered, ... Keywords: decision diagrams, word-level, variable exchange, reordering, sifting, hybrid graph manipulation, K*BMDs

S. Hreth; R. Drechsler

1998-02-01T23:59:59.000Z

94

Recall the diagrams we saw before: Screen1Screen1  

E-Print Network (OSTI)

Customer EnterOrder customers orders buttons · When we trace through the diagram there are a number of keyX-machines · Recall the diagrams we saw before: Start Customers Orders Screen1Screen1 Screen2 Customers Screen Screen2 Customers Screen Screen3 Orders Screen Screen3 Orders Screen ClickCustomer Click

Holcombe, Mike

95

The predicates for the Voronoi diagram of ellipses  

Science Conference Proceedings (OSTI)

This paper examines the computation of the Voronoi diagram of a set of ellipses in the Euclidean plane. We propose the first complete algorithms, under the exact computation paradigm, for the predicates of an incremental algorithm: ?1 ... Keywords: Euclidean distance, Voronoi diagram, bisector, ellipse, exact computation, parametric representation, predicate

Ioannis Z. Emiris; Elias P. Tsigaridas; George M. Tzoumas

2006-06-01T23:59:59.000Z

96

Improving perturbation theory with cactus diagrams  

E-Print Network (OSTI)

We study a systematic improvement of perturbation theory for gauge fields on the lattice [hep-lat/0606001]; the improvement entails resumming, to all orders in the coupling constant, a dominant subclass of tadpole diagrams. This method, originally proposed for the Wilson gluon action, is extended here to encompass all possible gluon actions made of closed Wilson loops; any fermion action can be employed as well. The effect of resummation is to replace various parameters in the action (coupling constant, Symanzik and clover coefficient) by ``dressed'' values; the latter are solutions to certain coupled integral equations, which are easy to solve numerically. Some positive features of this method are: a) It is gauge invariant, b) it can be systematically applied to improve (to all orders) results obtained at any given order in perturbation theory, c) it does indeed absorb in the dressed parameters the bulk of tadpole contributions. Two different applications are presented: The additive renormalization of fermion masses, and the multiplicative renormalization Z_V (Z_A) of the vector (axial) current. In many cases where non-perturbative estimates of renormalization functions are also available for comparison, the agreement with improved perturbative results is consistently better as compared to results from bare perturbation theory.

Martha Constantinou; Haralambos Panagopoulos; Apostolos Skouroupathis

2006-12-04T23:59:59.000Z

97

CD2Alloy: class diagrams analysis using alloy revisited  

Science Conference Proceedings (OSTI)

We present CD2Alloy, a novel, powerful translation of UML class diagrams (CDs) to Alloy. Unlike existing translations, which are based on a shallow embedding strategy, and are thus limited to checking consistency and generating conforming object models ...

Shahar Maoz; Jan Oliver Ringert; Bernhard Rumpe

2011-10-01T23:59:59.000Z

98

Thermodynamic Budget Diagrams for the Hurricane Subcloud Layer  

Science Conference Proceedings (OSTI)

We reexamine the idealized hurricane boundary layer budget from Malkus and Riehl using vector diagrams for the thermodynamic budgets in the light of recent observations studies. We conclude that a large air-sea temperature difference can only be ...

Alan K. Betts; Joanne Simpson

1987-03-01T23:59:59.000Z

99

High-Resolution Diagrams Now Available | Department of Energy  

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

every diagram you see will include options for downloading either a JPG or EPS file in a ZIP compressed format. Here's an example of the Active, Closed Loop Solar Water Heater...

100

CSL Model Checking of Biochemical Networks with Interval Decision Diagrams  

Science Conference Proceedings (OSTI)

This paper presents an Interval Decision Diagram based approach to symbolic CSL model checking of Continuous Time Markov Chains which are derived from stochastic Petri nets. Matrix-vector and vector-matrix multiplication are the major tasks of exact ...

Martin Schwarick; Monika Heiner

2009-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Anisotropy and Forming Limit Diagram Comparison of DC and CC ...  

Science Conference Proceedings (OSTI)

Presentation Title, Anisotropy and Forming Limit Diagram Comparison of DC and CC ... Advanced Experimental Grid Pattern Techniques Coupled with FE-analysis ... Effect of Exploitation Overhead Power Lines on the Evolution of Mechanical...

102

Mechanised Translation of Control Law Diagrams into Circus  

Science Conference Proceedings (OSTI)

Previously we proposed a strategy for translating control law diagrams into Circus . Combining elements from Z, CSP, and a refinement calculus,

Frank Zeyda; Ana Cavalcanti

2009-02-01T23:59:59.000Z

103

Efficient Decompositional Model-Checking for Regular Timing Diagrams  

E-Print Network (OSTI)

There is a growing need to make verification tools easier to use. A solution that does not require redesigning the tool is to construct front-ends providing specification notations that are close to those used in practice. Timing diagrams are such a widely used graphical notation, one that is often more appealing than a "linear" textual notation. This paper introduces a class of timing diagrams called Regular Timing Diagrams (RTDs). RTDs have a precise syntax and a formal semantics that is simple and corresponds to common usage. In addition, RTDs have an inherent compositional structure, which is exploited to provide an efficient algorithm for model-checking an RTD with respect to a system description. The algorithm has time complexity that is a small polynomial in the size of the diagram and linear in the size of the structure. We demonstrate the applicability of our algorithms by verifying that a master-slave system satisfies its specification RTDs.

Nina Amla; E. Allen Emerson; Kedar S. Namjoshi

1999-01-01T23:59:59.000Z

104

HP-67 CALCULATOR PROGRAMS FOR THERMODYNAMIC DATA AND PHASE DIAGRAM CALCULATIONS  

E-Print Network (OSTI)

Selected Values of the Thermodynamic Properties of theI-, Estimation of Thermodynamic D.ata and Phase Diagrams. ,CALCULATOR PROGRAMS FOR THERMODYNAMIC DATA AND PHASE DIAGRAM

Brewer, Leo

2010-01-01T23:59:59.000Z

105

EM Pnictide Phase Diagram - Argonne National Laboratories, Materials  

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

Materials > EM Pnictide Materials > EM Pnictide Phase Diagram Phase Diagram of Ba1-xKxFe2As2 Structural, magnetic, and superconducting phase diagram of Ba1-xK1-xFe2As2. Published May 7, 2012 The role of internal structural parameters that influence the band structure and the degree of moment localization in optimizing superconductivity and the implications for the gap symmetry in Ba1-xKxFe2As2 remains a matter of debate. Controlling the inhomogeneity to within acceptable limits to improve the accuracy of structural, magnetic, and superconducting phase boundaries has been a key goal of this work. We estimate that we have been able to synthesize samples for which Δx <0.01, suitable for systematic investigation using high-resolution neutron and x-ray diffraction combined with magnetization measurements.

106

Photon capture cones and embedding diagrams of the Ernst spacetime  

E-Print Network (OSTI)

The differences between the character of the Schwarzschild and Ernst spacetimes are illustrated by comparing the photon capture cones, and the embedding diagrams of the $t=\\mathrm{const}$ sections of the equatorial planes of both the ordinary and optical reference geometry of these spacetimes. The non-flat asymptotic character of the Ernst spacetime reflects itself in two manifest facts: the escape photon cones correspond to purely outward radial direction, and the embedding diagrams of both the ordinary and optical geometry shrink to zero radius asymptotically. Using the properties of the embedding diagrams, regions of these spacetimes which could have similar character are estimated, and it is argued that they can exist for the Ernst spacetimes with a sufficiently low strength of the magnetic field.

Zden?k Stuchlk; Stanislav Hledk

2008-03-17T23:59:59.000Z

107

Project Management Plan for the INEL technology logic diagrams  

SciTech Connect

This Project Management Plan (PjMP) describes the elements of project planning and control that apply to activities outlined in Technical Task Plan (TTP) ID-121117, ``Technology Logic Diagrams For The INEL.`` The work on this project will be conducted by personnel in EG&G Idaho, Inc.`s Waste Technology Development Program. Technology logic diagrams represent a formal methodology to identify technology gaps or needs within Environmental Restoration/Waste Management Operations, which will focus on Office of Environmental Restoration and Waste Management (EM-50) research and development, demonstration, test, and evaluation efforts throughout the US Department of Energy complex. This PjMP describes the objectives, organization, roles and responsibilities, workscope and processes for implementing and managing the technology logic diagram for the Idaho National Engineering Laboratory project.

Rudin, M.J.

1992-10-01T23:59:59.000Z

108

Project Management Plan for the INEL technology logic diagrams  

SciTech Connect

This Project Management Plan (PjMP) describes the elements of project planning and control that apply to activities outlined in Technical Task Plan (TTP) ID-121117, Technology Logic Diagrams For The INEL.'' The work on this project will be conducted by personnel in EG G Idaho, Inc.'s Waste Technology Development Program. Technology logic diagrams represent a formal methodology to identify technology gaps or needs within Environmental Restoration/Waste Management Operations, which will focus on Office of Environmental Restoration and Waste Management (EM-50) research and development, demonstration, test, and evaluation efforts throughout the US Department of Energy complex. This PjMP describes the objectives, organization, roles and responsibilities, workscope and processes for implementing and managing the technology logic diagram for the Idaho National Engineering Laboratory project.

Rudin, M.J.

1992-10-01T23:59:59.000Z

109

Phase diagram of the lattice SU(2) Higgs model  

E-Print Network (OSTI)

We perform a detailed study of the phase diagram of the lattice Higgs SU(2) model with fixed Higgs field length. Consistently with previsions based on the Fradkin Shenker theorem we find a first order transition line with an endpoint whose position we determined. The diagram also shows cross-over lines: the cross-over corresponding to the pure SU(2) bulk is also present at nonzero coupling with the Higgs field and merges with the one that continues the line of first order transition beyond the critical endpoint. At high temperature the first order line becomes a crossover, whose position moves by varying the temperature.

C. Bonati; G. Cossu; M. D'Elia; A. Di Giacomo

2009-11-09T23:59:59.000Z

110

The impact of meridional circulation on stellar butterfly diagrams and polar caps  

E-Print Network (OSTI)

Observations of rapidly rotating solar-like stars show a significant mixture of opposite-polarity magnetic fields within their polar regions. To explain these observations, models describing the surface transport of magnetic flux demand the presence of fast meridional flows. Here, we link sub-surface and surface magnetic flux transport simulations to investigate (i) the impact of meridional circulations with peak velocities of <125m/s on the latitudinal eruption pattern of magnetic flux tubes and (ii) the influence of the resulting butterfly diagrams on polar magnetic field properties. Prior to their eruption, magnetic flux tubes with low field strengths and initial cross sections below about 300km experience an enhanced poleward deflection through meridional flows. In particular flux tubes which originate between low and intermediate latitudes within the convective overshoot region are strongly affected. This latitude-dependent poleward deflection of erupting magnetic flux renders the wings of stellar butterfly diagrams distinctively convex. The subsequent evolution of the surface magnetic field shows that the increased number of newly emerging bipoles at higher latitudes promotes the intermingling of opposite polarities of polar magnetic fields. The associated magnetic flux densities are about 20% higher than in the case disregarding the pre-eruptive deflection, which eases the necessity for fast meridional flows predicted by previous investigations. In order to reproduce the observed polar field properties, the rate of the meridional circulation has to be on the order of 100m/s, and the latitudinal range from which magnetic flux tubes originate at the base of the convective zone (<50degrees) must be larger than in the solar case (<35degrees).

V. Holzwarth; D. H. Mackay; M. Jardine

2006-04-05T23:59:59.000Z

111

Visualization of Geologic Stress Perturbations Using Mohr Diagrams  

Science Conference Proceedings (OSTI)

Huge salt formations, trapping large untapped oil and gas reservoirs, lie in the deepwater region of the Gulf of Mexico. Drilling in this region is high-risk and drilling failures have led to well abandonments, with each costing tens of millions of dollars. ... Keywords: Index Terms- Geomechanical modeling, Mohr diagrams, multiple coordinated views, tensor field visualization, tensor glyph.

Patricia Crossno; David H. Rogers; Rebecca M. Brannon; David Coblentz; Joanne T. Fredrich

2005-09-01T23:59:59.000Z

112

Landfill gas emission prediction using Voronoi diagrams and importance sampling  

Science Conference Proceedings (OSTI)

Municipal solid waste (MSW) landfills are among the nation's largest emitters of methane, a key greenhouse gas, and there is considerable interest in quantifying the surficial methane emissions from landfills. There are limitations in obtaining accurate ... Keywords: Air dispersion modeling, Delaunay tessellation, Kriging, Least squares, MSW landfill, Voronoi diagram

K. R. Mackie; C. D. Cooper

2009-10-01T23:59:59.000Z

113

Guidelines on the aesthetic quality of UML class diagrams  

Science Conference Proceedings (OSTI)

In the past, formatting guidelines have proved to be a successful method to improve the readability of source code. With the increasing success of visual specification languages such as UML for model-driven software engineering visual guidelines are ... Keywords: Aesthetic quality, Automatic layout, Layout guidelines, Modeling tools, Software engineering, UML class diagrams

Holger Eichelberger; Klaus Schmid

2009-12-01T23:59:59.000Z

114

Chapter 17. Biomedical Optical Imaging Biomedical Optical Imaging  

E-Print Network (OSTI)

. Figure 1.2 shows the schematic diagram of a spectral / Fourier-domain OCT system. A broadband light imaging. The system consists of an interferometer with a spectrometer and line scan camera. Light. The incident light power on the eye is 750 W, the same exposure used in commercial ophthalmic OCT systems

115

Microsoft Word - PMCDP Knowledge Diagram Updates March 26 2009.doc  

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

(PMCDP) KNOWLEDGE DIAGRAM (PMCDP) KNOWLEDGE DIAGRAM Certification is based on competencies and is cumulative. For example, to fulfill requirements for Level 3, competency requirements for Levels 1, 2, and 3 must be attained. 1 Competency (Knowledge/Skill) Category Project Director Level Core Courses, Electives, and Work/Development Activities 1. General Project Management 2. Leadership / Team Building 3. Scope Management 4. Communication Management 5. Quality / Safety Management 6. Cost Management 7. Time Management 8. Risk Management 9. Contract Management 10. Integration Management PM Level 1 FPD for projects with TPC Greater than $5M and equal to or less than $20 million Core Courses: 1. Project Management Essentials* 2. Project Management Systems and Practices in DOE

116

Microsoft Word - Knowledge Diagram 4_30_2008.doc  

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

PMCDP) KNOWLEDGE DIAGRAM PMCDP) KNOWLEDGE DIAGRAM Certification is based on competencies and is cumulative. For example, to fulfill requirements for Level 3, competency requirements for Levels 1, 2, and 3 must be attained. Competency (Knowledge/Skill) Category Project Director Level Core Courses, Electives, and Work/Development Activities 1. General Project Management 2. Leadership / Team Building 3. Scope Management 4. Communication Management 5. Quality / Safety Management 6. Cost Management 7. Time Management 8. Risk Management 9. Contract Management 10. Integration Management PM Level 1 FPD for projects with TPC Greater than $5M and equal to or less than $20 million Core Courses: 1. Project Management (PM) Essentials* 2. Project Management Systems and Practices in DOE

117

Effects of photon escape on diagnostic diagrams for HII regions  

E-Print Network (OSTI)

In this article we first outline the mounting evidence that a significant fraction of the ionizing photons emitted by OB stars within HII regions escape from their immediate surroundings and explain how an HII region structure containing high density contrast in homogeneities facilitates this escape. Next we describe sets of models containing inhomogeneities which are used to predict tracks in the commonly used diagnostic diagrams (based on ratios of emission lines) whose only independent variable is the photon escape fraction, xi. We show that the tracks produced by the models in two of the most cited of these diagrams conform well to the distribution of observed data points, with the models containing optically thick inhomogeneities ("CLUMPY" models) yielding somewhat better agreement than those with optically thin inhomogeneities ("FF" models). We show how variations in the ionization parameter U, derived from emission line ratios, could be due to photon escape. Using a rather wide range of assumptions abo...

Giammanco, C; Cedres, B

2005-01-01T23:59:59.000Z

118

Oak Ridge K-25 Site Technology Logic Diagram  

Science Conference Proceedings (OSTI)

The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This report is part A of Volume 3 concerning characterization, decontamination, and dismantlement.

Fellows, R.L. (ed.)

1993-02-26T23:59:59.000Z

119

ARTICLE IN PRESS Computer Coupling of Phase Diagrams and Thermochemistry ( )  

E-Print Network (OSTI)

review 2.1. Ni­Y system The phase diagram of the Ni­Y system was first investigated by Beaudry and Daane Ni-rich intermediate phase reporting the composition to be Ni9Y not Ni17Y2. Studying the crystal with a molten salt galvanic cell. Also, there is a reasonable agreement between the current work and Schmahl

Medraj, Mamoun

120

On the QCD phase diagram at finite chemical potential  

SciTech Connect

We present results for the phase diagram of QCD with two massless quark flavours as obtained from a first-principles functional renormalisation group approach. In particular we compute order parameters for chiral symmetry breaking and quark confinement at vanishing and non-zero imaginary chemical potential. Our analytical and numerical results suggest a close relation between the chiral and the deconfinement phase transition. We discuss the properties of dual order parameters at imaginary and real chemical potential.

Haas, Lisa M.; Pawlowski, Jan M. [Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, 69120 Heidelberg (Germany); ExtreMe Matter Institute EMMI, GSI, Planckstr. 1, 64291 Darmstadt (Germany); Braun, Jens [Theoretisch-Physikalisches Institut, Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)

2011-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Possible Orientation Effects to Phase Diagram of Strange Matter  

E-Print Network (OSTI)

We obtain possibly valuable information about the orientation-tuning of phase diagram of superdense nuclear matter at high fermion as well as boson number density but low temperature, which is not accessible to relativistic heavy ion collision experiments. Our results resemble those proposed before by Alford. Possible observational signatures associated with the theoretically proposed states of matter inside compact stars are discussed as well.

Kwang-Hua W. Chu

2006-09-21T23:59:59.000Z

122

A CSP View on UMLRT structure diagrams Clemens Fischer, ErnstRudiger Olderog and Heike Wehrheim  

E-Print Network (OSTI)

A CSP View on UML­RT structure diagrams Clemens Fischer, Ernst­R¨udiger Olderog and Heike Wehrheim UML­RT structure diagrams together with the formal method CSP­OZ combining CSP and Object­Z. While CSP­OZ is used for specifying the system components themselves (by CSP­OZ classes), UML­RT diagrams provide

Olderog, Ernst-Rüdiger

123

Query Processing for Probabilistic State Diagrams Describing Multiple Robot Navigation in an Indoor Environment  

SciTech Connect

This paper describes the syntax and semantics of multi-level state diagrams to support probabilistic behavior of cooperating robots. The techniques are presented to analyze these diagrams by querying combined robots behaviors. It is shown how to use state abstraction and transition abstraction to create, verify and process large probabilistic state diagrams.

Czejdo, Bogdan [ORNL; Bhattacharya, Sambit [North Carolina Fayetteville State University; Ferragut, Erik M [ORNL

2012-01-01T23:59:59.000Z

124

Bosonic Loop Diagrams as Perturbative Solutions of the Classical Field Equations in $\\phi^4$-Theory  

E-Print Network (OSTI)

Solutions of the classical $\\phi^4$-theory in Minkowski space-time are analyzed in a perturbation expansion in the nonlinearity. Using the language of Feynman diagrams, the solution of the Cauchy problem is expressed in terms of tree diagrams which involve the retarded Green's function and have one outgoing leg. In order to obtain general tree diagrams, we set up a "classical measurement process" in which a virtual observer of a scattering experiment modifies the field and detects suitable energy differences. By adding a classical stochastic background field, we even obtain all loop diagrams. The expansions are compared with the standard Feynman diagrams of the corresponding quantum field theory.

Finster, Felix

2012-01-01T23:59:59.000Z

125

Effects of photon escape on diagnostic diagrams for HII regions  

E-Print Network (OSTI)

In this article we first outline the mounting evidence that a significant fraction of the ionizing photons emitted by OB stars within HII regions escape from their immediate surroundings and explain how an HII region structure containing high density contrast in homogeneities facilitates this escape. Next we describe sets of models containing inhomogeneities which are used to predict tracks in the commonly used diagnostic diagrams (based on ratios of emission lines) whose only independent variable is the photon escape fraction, xi. We show that the tracks produced by the models in two of the most cited of these diagrams conform well to the distribution of observed data points, with the models containing optically thick inhomogeneities ("CLUMPY" models) yielding somewhat better agreement than those with optically thin inhomogeneities ("FF" models). We show how variations in the ionization parameter U, derived from emission line ratios, could be due to photon escape. Using a rather wide range of assumptions about the filling factor of dense clumps we find, for a selected set of regions observed in M51 photon escape fraction ranging between 30% and 50%. We show, using oxygen as the test element, that models with different assumptions about the gas inhomogeneity will give variations in the abundance values derived from diagnostic diagrams, but do not claim here to have a fully developed set of diagnostic tools to improve abundance determinations made in this way. We finally propose a combination of line ratios with the absolute Halpha luminosity of a given HII region, which allows us to determine the photon escape fraction, and hence resolve the degeneracy between U and xi.

C. Giammanco; J. E. Beckman; B. Cedres

2005-04-11T23:59:59.000Z

126

QCD phase diagram at imaginary baryon and isospin chemical potentials  

E-Print Network (OSTI)

We explore the phase diagram of two-flavor QCD at imaginary values of baryon and isospin chemical potentials analyzing the thermodynamic potential of QCD analytically and that of the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model numerically. QCD has no pion condensation at imaginary baryon and isospin chemical potentials, and therefore has discrete symmetries that are not present at real baryon and isospin chemical potentials. The PNJL model possesses all the discrete symmetries. The PNJL model can reproduce qualitatively lattice QCD data presented very lately.

Sakai, Yuji; Yahiro, Masanobu

2009-01-01T23:59:59.000Z

127

ESPC Overview: Cash Flows, Scenarios, and Associated Diagrams for Energy Savings Performance Contracts  

Science Conference Proceedings (OSTI)

This document is meant to inform state and local decision makers about the process of energy savings performance contracts, and how projected savings and allocated energy-related budgets can be impacted by changes in utility prices.

Tetreault, T.; Regenthal, S.

2011-05-01T23:59:59.000Z

128

Oak Ridge K-25 Site Technology Logic Diagram  

SciTech Connect

The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration (ER) and waste management (WN) problems at the Oak Ridge K-25 Site. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remediation, decontamination, and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This volume 3 B provides the Technology Evaluation Data Sheets (TEDS) for ER/WM activities (Remedial Action Robotics and Automation, Waste Management) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than each technology in Vol. 2. The TEDS are arranged alphanumerically by the TEDS code number in the upper right corner of each data sheet. Volume 3 can be used in two ways: (1) technologies that are identified from Vol. 2 can be referenced directly in Vol. 3 by using the TEDS codes, and (2) technologies and general technology areas (alternatives) can be located in the index in the front of this volume.

Fellows, R.L. (ed.)

1993-02-26T23:59:59.000Z

129

Oak Ridge K-25 Site Technology Logic Diagram  

SciTech Connect

The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. This Volume, Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This volume is divided into ten chapters. The first chapter is a brief introduction, and the second chapter details the technical approach of the TLD. These categories are the work activities necessary for successful decontamination and decommissioning, waste management, and remedial action of the K-25 Site. The categories are characterization, decontamination, dismantlement, robotics and automation, remedial action, and waste management. Materials disposition is addressed in Chap. 9. The final chapter contains regulatory compliance information concerning waste management, remedial action, and decontamination and decommissioning.

Fellows, R.L. (ed.)

1993-02-26T23:59:59.000Z

130

The QCD phase diagram from Schwinger-Dyson Equations  

E-Print Network (OSTI)

We study the phase diagram of quantum chromodynamics (QCD). For this purpose we employ the Schwinger-Dyson equations (SDEs) technique and construct a truncation of the infinite tower of equations by demanding a matching with the lattice results for the quark-anti-quark condensate at finite temperature (T), for zero quark chemical potential (mu), that is, the region where lattice calculations are expected to provide reliable results. We compute the evolution of the phase diagram away from T=0 for increasing values of the chemical potential by following the evolution of the heat capacity as a function of T and mu. The behavior of this thermodynamic variable clearly demonstrates the existence of a cross-over for mu less than a critical value. However, the heat capacity develops a singularity near mu approx 0.22 GeV marking the onslaught of a first order phase transition characterized by the existence of a critical point. The critical line continues until mu approx 0.53 GeV where Tc=0 and thus chiral symmetry is finally restored.

Enif Gutierrez; Aftab Ahmad; Alejandro Ayala; Adnan Bashir; Alfredo Raya

2013-04-30T23:59:59.000Z

131

Pairing Functions, Boolean Evaluation and Binary Decision Diagrams  

E-Print Network (OSTI)

A ``pairing function'' J associates a unique natural number z to any two natural numbers x,y such that for two ``unpairing functions'' K and L, the equalities K(J(x,y))=x, L(J(x,y))=y and J(K(z),L(z))=z hold. Using pairing functions on natural number representations of truth tables, we derive an encoding for Binary Decision Diagrams with the unique property that its boolean evaluation faithfully mimics its structural conversion to a a natural number through recursive application of a matching pairing function. We then use this result to derive {\\em ranking} and {\\em unranking} functions for BDDs and reduced BDDs. The paper is organized as a self-contained literate Prolog program, available at \\url{http://logic.csci.unt.edu/tarau/research/2008/pBDD.zip}. {\\em Keywords:} logic programming and computational mathematics, pairing/unpairing functions, encodings of boolean functions, binary decision diagrams, natural number representations of truth tables

Tarau, Paul

2008-01-01T23:59:59.000Z

132

Pore-scale imaging and lattice Boltzmann modeling of single- and multi-phase flow in fractured and mixed-wet permeable media.  

E-Print Network (OSTI)

??Three investigations of pore-scale single-phase and multiphase flow in fractured porous media and mixed-wet porous media are presented here. With an emphasis on validating and (more)

Landry, Christopher

2013-01-01T23:59:59.000Z

133

Y-12 Plant decontamination and decommissioning technology logic diagram for Building 9201-4. Volume 2: Technology logic diagram  

Science Conference Proceedings (OSTI)

The Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4 (TLD) was developed to provide a decision-support tool that relates decontamination and decommissioning (D and D) problems at Bldg. 9201-4 to potential technologies that can remediate these problems. This TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to D and D and waste management (WM) activities. It is essential that follow-on engineering studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in the TLD and by finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk. The TLD consists of three fundamentally separate volumes: Vol. 1 (Technology Evaluation), Vol. 2 (Technology Logic Diagram), and Vol. 3 (Technology Evaluation Data Sheets). Volume 2 contains the logic linkages among environmental management goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 2 has been divided into five sections: Characterization, Decontamination, Dismantlement, Robotics/Automation, and Waste Management. Each section contains logical breakdowns of the Y-12 D and D problems by subject area and identifies technologies that can be reasonably applied to each D and D challenge.

NONE

1994-09-01T23:59:59.000Z

134

QCD Phase Diagram According to the Center Group  

SciTech Connect

We study an effective theory for QCD at finite temperature and density which contains the leading center symmetric and center symmetry breaking terms. The effective theory is studied in a flux representation where the complex phase problem is absent and the model becomes accessible to Monte Carlo techniques also at finite chemical potential. We simulate the system by using a generalized Prokof'ev-Svistunov worm algorithm and compare the results to a low temperature expansion. The phase diagram is determined as a function of temperature, chemical potential, and quark mass. The shape and quark mass dependence of the phase boundaries are as expected for QCD. The transition into the deconfined phase is smooth throughout, without any discontinuities or critical points.

Delgado Mercado, Ydalia; Gattringer, Christof [Institut fuer Physik, Karl-Franzens Universitaet, Graz (Austria); Evertz, Hans Gerd [Institute for Theoretical and Computational Physics, Technische Universitaet Graz (Austria)

2011-06-03T23:59:59.000Z

135

Feynman diagrams versus Fermi-gas Feynman emulator  

E-Print Network (OSTI)

Precise understanding of strongly interacting fermions, from electrons in modern materials to nuclear matter, presents a major goal in modern physics. However, the theoretical description of interacting Fermi systems is usually plagued by the intricate quantum statistics at play. Here we present a cross-validation between a new theoretical approach, Bold Diagrammatic Monte Carlo (BDMC), and precision experiments on ultra-cold atoms. Specifically, we compute and measure with unprecedented accuracy the normal-state equation of state of the unitary gas, a prototypical example of a strongly correlated fermionic system. Excellent agreement demonstrates that a series of Feynman diagrams can be controllably resummed in a non-perturbative regime using BDMC. This opens the door to the solution of some of the most challenging problems across many areas of physics.

K. Van Houcke; F. Werner; E. Kozik; N. Prokofev; B. Svistunov; M. J. H. Ku; A. T. Sommer; L. W. Cheuk; A. Schirotzek; M. W. Zwierlein

2011-10-17T23:59:59.000Z

136

The phase diagram of hydrogen in ultra thin films  

DOE Green Energy (OSTI)

This paper, we discuss changes in the phase diagram of hydrogen in both bilayer (i.e. 200-2000 {Angstrom} Nb/100 {Angstrom} Pd on glass) and multilayer configurations. Comparison of x-ray diffraction, electrical resistivity and volumetric measurements of the films before and after hydrogen charging indicate that the phase equilibria between a correlated (high concentration) and a dilute phase of hydrogen in Nb is not sensitive to the number of layers in the films. On the other hand, the experimental methods show different behavior for 200 {Angstrom} thick Nb films and thicker (>400 {Angstrom}) Nb layers. The diffraction results also show that, while charging with hydrogen, the Nb layers mainly expand along the surface normal of the films, while the Pd layers expand in all directions equally, and transform to the bulk {alpha} phase.

Jisrawi, N.M.; Ruckman, M.W.; Reisfeld, G.; Wiesmann, H.; Loeb, F; Gallego, E.; Gorelik, Y.; Thurston, T.R.; Strongin, M.

1995-12-31T23:59:59.000Z

137

Third moments of conserved charges in QCD phase diagram  

E-Print Network (OSTI)

We point out that the third moments of conserved charges, the baryon and electric charge numbers, and energy, as well as their mixed moments, change their signs around the QCD phase boundary in the temperature and baryon chemical potential plane. These signs can be measured in relativistic heavy ion collisions, and will give clear information on the phase structure of QCD and the state of the system in the early stage of relativistic heavy ion collisions. The behaviors of these moments on the temperature axis and at small quark chemical potential can be analyzed in lattice QCD simulations. We emphasize that the third moments obtained on the lattice, together with the experimental results, will provide a deep understanding about the QCD phase diagram and the location of the state created in heavy ion collisions.

Kitazawa, Masakiyo; Ejiri, Shinji

2009-01-01T23:59:59.000Z

138

Ternary Phase Diagram of the Zn-Sn-P System for Fabrication of ...  

Science Conference Proceedings (OSTI)

First, we establish the phase diagram by equilibrium experiments using zinc, tin and their phosphides. At 700 C, ZnSnP2 is almost stoichiometry,...

139

Iron-Carbon Phase Diagram: A Century at Variance with Chemical ...  

Science Conference Proceedings (OSTI)

Abstract Scope, For about a century thermodynamically absurd facts have been propagated in conjunction with the iron-carbon phase diagram. These facts...

140

High-temperature Soft Solders: The Ni-Sn-Zn Phase Diagram  

Science Conference Proceedings (OSTI)

In this contribution, the phase diagram information from a large amount of own experimental data and various available literature reports were merged into a...

Note: This page contains sample records for the topic "flow diagram image" 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

Minimal free resolutions and Betti diagrams of the algebras of $SL_2$-invariants  

E-Print Network (OSTI)

For the algebras of $SL_2$-invariants of small homological dimension theirs minimal free graded resolutions and graded Betti diagrams calculated.

Bedratyuk, Leonid

2011-01-01T23:59:59.000Z

142

Optical flow using phase information for deblurring  

E-Print Network (OSTI)

This thesis presents a method for reconstructing motion-degraded images by using velocity information generated with a phase-based optical flow calculation. The optical flow method applies a set of frequency-tuned Gabor ...

Texin, Cheryl (Cheryl A.)

2007-01-01T23:59:59.000Z

143

Computer-Aided Light Sheet Flow Visualization  

Science Conference Proceedings (OSTI)

A computer-aided flow visualization process has been developed to analyze video images acquired from rotating and translating light sheet visualization systems.The computer process integrates a mathematical model for image reconstruction, advanced computer ...

Stacy Kathryn; Severance Kurt; Childers Brooks A.

1993-07-01T23:59:59.000Z

144

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Frequency Comb, Ultrafast Laser. ...

145

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Iron-Based Superconductors. Description ...

146

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Space Weather Forecasts. Description ...

147

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: Organic Solar Power. Description ...

148

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Nanotechnology; Biotechnology/Health; Nanocrystals; Hwang. ...

149

Modelling and model checking suspendible business processes via statechart diagrams and CSP  

Science Conference Proceedings (OSTI)

When modelling object behaviour with UML statechart diagrams, the history mechanism can be useful for modelling the suspension of a ''normal'' business process upon certain ''abnormal'' events together with the subsequent resumption, as illustrated by ... Keywords: History mechanism, Model checking, Object behaviour, Process modelling, Statechart diagrams

W. L. Yeung; K. R. P. H. Leung; Ji Wang; Wei Dong

2007-03-01T23:59:59.000Z

150

MARD-A moving average rose diagram application for the geosciences  

Science Conference Proceedings (OSTI)

MARD 1.0 is a computer program for generating smoothed rose diagrams by using a moving average, which is designed for use across the wide range of disciplines encompassed within the Earth Sciences. Available in MATLAB^(R), Microsoft^(R) Excel and GNU ... Keywords: Circular statistics, MATLAB, Microsoft Excel, Moving average, Rose diagram, Vector mean

Mark A. Munro; Thomas G. Blenkinsop

2012-12-01T23:59:59.000Z

151

Employment Of Fuzzy Logic In Feature Diagrams To Model Variability In Software Families  

Science Conference Proceedings (OSTI)

The features of software family members may vary according to the needs of particular market segments or purposes. The assessment of what will be common and what will be variable feature may result from particular needs and market strategies. Further, ... Keywords: FODA feature diagrams, feature diagram tree, fuzzy representation, knowledge base, power plant description

Silva Robak; Andrzej Pieczy?ski

2003-08-01T23:59:59.000Z

152

Experimental and Numerical Investigation of Forming Limit Diagram for AA3105  

SciTech Connect

In this work, forming limit diagram for aluminum alloy 3105 is performed experimentally using out of plane test. In addition, using ductile fracture criteria and finite element simulation, forming limit diagram of aluminum alloy 3105 is performed numerically. Finally, it is shown that the results obtained from numerical prediction are in good agreement with experimental results.

Safari, Mehdi; Yousefzadeh, Sh. [Islamic Azad University, Aligoodarz Branch, Department of Mechanical Engineering P. O. Box 159, Aligoodarz (Iran, Islamic Republic of); Hoseinipour, S. J. [Babol University of Technology, Department of Mechanical Engineering, Babol (Iran, Islamic Republic of); Azodi, H. D. [Iran University of Science and Technology, Department of Mechanical Engineering, Tehran (Iran, Islamic Republic of)

2011-01-17T23:59:59.000Z

153

Quadratic and cubic b-splines by generalizing higher-order voronoi diagrams  

Science Conference Proceedings (OSTI)

A long-standing problem in spline theory has been to generalize classic B-splines to the multivariate setting, and its full solution will have broad impact. We initiate a study of triangulations that generalize the duals of higher order Voronoi diagrams, ... Keywords: centroid triangulation, higher order Voronoi diagrams, multivariate splines

Yuanxin Liu; Jack Snoeyink

2007-06-01T23:59:59.000Z

154

Non-Abelian Groups in Optimization of Decision Diagrams Representations of Discrete Functions  

Science Conference Proceedings (OSTI)

This paper is devoted to the reduction of decision diagram (DD) representations of discrete functions by using the non-Abelian groups and Fourier DDs on these groups. The number of levels in a DD can be reduced through decomposition of the domain group ... Keywords: Fourier transform, decision diagrams, discrete functions, non-Abelian groups

Radomir S. Stankovi?

2001-05-01T23:59:59.000Z

155

Smartvolumes - adaptive Voronoi power diagramming for real-time volumetric design exploration  

Science Conference Proceedings (OSTI)

Voronoi Diagrams and Delaunay Triangulations are two concepts fundamental to computational geometry, which have been applied in the most varied disciplines. In recent years, they are increasingly used in architectural design. In this paper, a novel method ... Keywords: computational design, delaunay triangulation, design environments, design exploration, interactive architecture, voronoi diagram

Christian Friedrich

2007-09-01T23:59:59.000Z

156

Transformation of UML activity diagrams into analyzable systems and software blueprints construction  

Science Conference Proceedings (OSTI)

Unified Modeling Language (UML) is a standard language for software blueprints, UML can be used to visualize, specify, construct and document software-intensive system of heritage. In the UML, the activity diagrams often are widely used to workflow and ... Keywords: activity diagram, system description, unified modeling language, visualize

Chien-Yuan Lai; Dong-Her Shih; Hsiu-Sen Chiang; Ching-Chiang Chen

2010-03-01T23:59:59.000Z

157

On application of multi-rooted binary decision diagrams to probabilistic model checking  

Science Conference Proceedings (OSTI)

In this paper we consider the applicability of multi-rooted binary decision diagrams for the probabilistic model checking. The symbolic probabilistic model checking involves manipulation of functions and matrices with the values in [0,1], and multi-terminal ... Keywords: binary decision diagrams, probabilistic model checking

Dmitry Bugaychenko

2012-01-01T23:59:59.000Z

158

Experiences developing architectures for realizing thin-client diagram editing tools  

Science Conference Proceedings (OSTI)

Diagram-centric applications such as software design tools, project planning tools and business process modelling tools are usually thick-client applications running as stand-alone desktop applications. There are several advantages to providing ... Keywords: CASE tools, Web and mobile user interfaces, software architecture, thin-client diagramming

John Grundy; John Hosking; Shuping Cao; Denjin Zhao; Nianping Zhu; Ewan Tempero; Hermann Stoeckle

2007-10-01T23:59:59.000Z

159

Scaling analysis and application: Phase diagram of magnetic nanorings and elliptical nanoparticles  

Science Conference Proceedings (OSTI)

The magnetic properties of single-domain nanoparticles with different geometric shapes, crystalline anisotropies, and lattice structures are investigated. A recently proposed scaling approach is shown to be universal and in agreement with dimensional analysis coupled with the assumption of incomplete self-similarity. It is used to obtain phase diagrams of magnetic nanoparticles featuring three competing configurations: in-plane ferromagnetism, out-of-plane ferromagnetism, and vortex formation. The influence of the vortex core on the scaling behavior and phase diagram is analyzed. Three-dimensional phase diagrams are obtained for cylindrical nanorings depending on their height and outer and inner radii. The triple points in these phase diagrams are shown to be in a linear relationship with the inner radius of the ring. Elliptically shaped magnetic nanoparticles are also studied. A new parametrization for double vortex configurations is proposed, and regions in the phase diagram where the double vortex is a stable ground state are identified.

Zhang Wen; Singh, Rohit; Bray-Ali, Noah; Haas, Stephan [Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089 (United States)

2008-04-01T23:59:59.000Z

160

Global phase diagram of a doped Kitaev-Heisenberg model  

SciTech Connect

The global phase diagram of a doped Kitaev-Heisenberg model is studied using an $SU(2)$ slave-boson mean-field method. Near the Kitaev limit, $p$-wave superconducting states which break the time-reversal symmetry are stabilized as reported by You {\\it et al.} [Phys. Rev. B {\\bf 86}, 085145 (2012)] irrespective of the sign of the Kitaev interaction. By further doping, a $d$-wave superconducting state appears when the Kitaev interaction is antiferromagnetic, while another $p$-wave superconducting state appears when the Kitaev interaction is ferromagnetic. This $p$-wave superconducting state does not break the time-reversal symmetry as reported by Hyart {\\it et al.} [Phys. Rev. B {\\bf 85}, 140510 (2012)], and such a superconducting state also appears when the antiferromagnetic Kitaev interaction and the ferromagnetic Heisenberg interaction compete. This work, thus, demonstrates the clear difference between the antiferromagnetic Kitaev model and the ferromagnetic Kitaev model when carriers are doped while these models are equivalent in the undoped limit, and how novel superconducting states emerge when the Kitaev interaction and the Heisenberg interaction compete.

Okamoto, Satoshi [ORNL

2013-01-01T23:59:59.000Z

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


161

Equation of state and phase diagram of FeO  

Science Conference Proceedings (OSTI)

Wuestite, Fe{sub 1-x}O, is an important component in the mineralogy of Earth's lower mantle and may also be a component in the core. Therefore the high pressure, high temperature behavior of FeO, including its phase diagram and equation of state, is essential knowledge for understanding the properties and evolution of Earth's deep interior. We performed X-ray diffraction measurements using a laser-heated diamond anvil cell to achieve simultaneous high pressures and temperatures. Wuestite was mixed with iron metal, which served as our pressure standard, under the assumption that negligible oxygen dissolved into the iron. Our data show a positive slope for the subsolidus phase boundary between the B1 and B8 structures, indicating that the B1 phase is stable at the P-T conditions of the lower mantle and core. We have determined the thermal equation of state of B1 FeO to 156 GPa and 3100 K, finding an isothermal bulk modulus K{sub 0} = 149.4 {+-} 1.0 GPa and its pressure derivative K'{sub 0} = 3.60 {+-} 0.4. This implies that 7.7 {+-} 1.1 wt.% oxygen is required in the outer core to match the seismologically-determined density, under the simplifying assumption of a purely Fe-O outer core.

Fischer, Rebecca A.; Campbell, Andrew J.; Shofner, Gregory A.; Lord, Oliver T.; Dera, Przemyslaw; Prakapenka, Vitali B. (Bristol); (Maryland); (UC)

2012-04-11T23:59:59.000Z

162

Butterfly Diagram and Activity Cycles in HR 1099  

E-Print Network (OSTI)

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

S. V. Berdyugina; G. W. Henry

2007-03-20T23:59:59.000Z

163

The Symposium Imaging of Dynamic Processes: Multimedia Highlights  

Science Conference Proceedings (OSTI)

Increased Understanding of Gas Atomization from Gas Flow Imaging and High .... A technique for imaging the solid-liquid interface in gas-tungsten-arc welds at

164

Core collapse supernovae in the QCD phase diagram  

SciTech Connect

We compare two classes of hybrid equations of state with a hadron-to-quark matter phase transition in their application to core collapse supernova simulations. The first one uses the quark bag model and describes the transition to three-flavor quark matter at low critical densities. The second one employs a Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model with parameters describing a phase transition to two-flavor quark matter at higher critical densities. These models possess a distinctly different temperature dependence of their transition densities which turns out to be crucial for the possible appearance of quark matter in supernova cores. During the early post-bounce accretion phase quark matter is found only if the phase transition takes place at sufficiently low densities as in the study based on the bag model. The increase critical density with increasing temperature, as obtained for our PNJL parametrization, prevents the formation of quark matter. The further evolution of the core collapse supernova as obtained applying the quark bag model leads to a structural reconfiguration of the central protoneutron star where, in addition to a massive pure quark matter core, a strong hydrodynamic shock wave forms and a second neutrino burst is released during the shock propagation across the neutrinospheres. We discuss the severe constraints in the freedom of choice of quark matter models and their parametrization due to the recently observed 2M{sub Circled-Dot-Operator} pulsar and their implications for further studies of core collapse supernovae in the QCD phase diagram.

Fischer, T., E-mail: t.fischer@gsi.de [Helmholtzzentrum fuer Schwerionenforschung GmbH, GSI (Germany); Blaschke, D. [University of Wroclaw, Institute for Theoretical Physics (Poland); Hempel, M. [University of Basel, Department of Physics (Switzerland); Klaehn, T.; Lastowiecki, R. [University of Wroclaw, Institute for Theoretical Physics (Poland); Liebendoerfer, M. [University of Basel, Department of Physics (Switzerland); Martinez-Pinedo, G. [Helmholtzzentrum fuer Schwerionenforschung GmbH, GSI (Germany); Pagliara, G.; Sagert, I. [Ruprecht-Karls-Universitaet, Institut fuer Theoretische Physik (Germany); Sandin, F. [Lulea Tekniska Universitet, Department of Computer Science and Electrical Engineering, EISLAB (Sweden); Schaffner-Bielich, J. [Ruprecht-Karls-Universitaet, Institut fuer Theoretische Physik (Germany); Typel, S. [Helmholtzzentrum fuer Schwerionenforschung GmbH, GSI (Germany)

2012-05-15T23:59:59.000Z

165

Q, Break-even and the n{tau{sub E}} Diagram for Transient Fusion Plasmas  

SciTech Connect

Q, break-even and the Lawson diagram are well defined and understood for steady-state fusion plasma conditions. Since many fusion experiments are transient, it is necessary to clarify the definitions for instantaneous Q values and break-even so that the Lawson diagram can be interpreted for transient plasma conditions. This discussion shows that there are two mathematically correct methods to describe the Lawson diagram for a transient plasma: the Lawson/TFTR method and the JET/JT-60 method. These methods are discussed in detail in this paper.

Dale M. Meade

1998-04-01T23:59:59.000Z

166

Travelling with/against the flow. Deterministic diffusive driven systems  

E-Print Network (OSTI)

We introduce and study a deterministic lattice model describing the motion of an infinite system of oppositely charged particles under the action of a constant electric field. As an application this model represents a traffic flow of cars moving in opposite directions along a narrow road. Our main results concern the Fundamental diagram of the system describing the dependence of average particle velocities on their densities and the Phase diagram describing the partition of the space of particle configurations into regions having different qualitative properties, which we identify with free, jammed and hysteresis phases.

Blank, Michael

2008-01-01T23:59:59.000Z

167

Travelling with/against the flow. Deterministic diffusive driven systems  

E-Print Network (OSTI)

We introduce and study a deterministic lattice model describing the motion of an infinite system of oppositely charged particles under the action of a constant electric field. As an application this model represents a traffic flow of cars moving in opposite directions along a narrow road. Our main results concern the Fundamental diagram of the system describing the dependence of average particle velocities on their densities and the Phase diagram describing the partition of the space of particle configurations into regions having different qualitative properties, which we identify with free, jammed and hysteresis phases.

Michael Blank

2008-10-13T23:59:59.000Z

168

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Quantum Physics; Quantum Communications; Ultrafast Photon Detector; Nam. ...

169

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Energy; Fossil Fuels;Distillation Curves for Complex Fuel Mixtures. ...

170

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Scanning Electron Microscope with Spin Polarization Analysis. ...

171

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Metrology, Basic Units; Mass; Electronic Kilogram. Description ...

172

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... nist.gov. 72 DPI Image 150 DPI Image 300 DPI Image . Title: Public safety & Smart Grid. Description: Electrical engineer ...

173

Phase Transformation and Equilibrium Diagram of Ti-Al-Nb Ternary ...  

Science Conference Proceedings (OSTI)

The phase type and distribution range of Ti-Al-Nb ternary alloy, as well as calculated phase diagram, were directly obtained by TC calculation, as a instruction of...

174

A Current T-T-T Diagram for Wrought Alloy 718  

Science Conference Proceedings (OSTI)

A T-T-T study was carried out on the phase reactions in high quality wrought alloy ... The only phases found and plotted on the T-T-T diagram were f/. f. and delta.

175

An Odds Ratio Parameterization for ROC Diagram and Skill Score Indices  

Science Conference Proceedings (OSTI)

The relative operating characteristic (ROC) diagram is often used to assess the performance of a classification system, like the categorical forecast of an event occurrence. Categorical forecasting can be obtained by imposing a threshold on a ...

Agostino Manzato

2005-12-01T23:59:59.000Z

176

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image No 150 DPI Version 300 DPI Image. Title: Ultrafast Laser Speeds Up Quest for Atomic Control. ...

177

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. 72 DPI Image 150 DPI Image No 300 DPI Version. Title: House; Trees. Description: *BFRL. Subjects (names): ...

178

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: New Imaging Tool is Boon to Fuel Cell Research. Description: NIST ...

179

The QCD Phase Diagram: Large Nc, Quarkyonic Matter and the Triple Point  

SciTech Connect

I discuss the phase diagram of QCD in the large N_c limit. Quarkyonic Matter is described. The properties of QCD matter as measured in the abundance of produced particles are shown to be consistent with this phase diagram. A possible triple point of Hadronic Mater, Deconfined Matter and Quarkyonic matter is shown to explain various behaviors of ratios of particles abundances seen in CERN fixed target experiments.

McLerran L.

2010-01-31T23:59:59.000Z

180

The two-angle model and the phase diagram for Chromatin  

E-Print Network (OSTI)

We have studied the phase diagram for chromatin within the framework of the two-angle model. Rather than improving existing models with finer details our main focus of the work is getting mathematically rigorous results on the structure, especially on the excluded volume effects and the effects on the energy due to the long-range forces and their screening. Thus we present a phase diagram for the allowed conformations and the Coulomb energies.

Philipp M. Diesinger; Dieter W. Heermann

2005-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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.


181

California energy flow in 1992  

DOE Green Energy (OSTI)

For the past 16 years energy flow diagrams for the State of California have been prepared from available data by members of the Lawrence Livermore National Laboratory. They have proven to be useful tools in graphically expressing energy supply and use in the State as well as illustrating the difference between particular years and between the State and the US as a whole. As far as is possible, similar data sources have been used to prepare the diagrams from year to year and identical assumptions{sup la-le} concerning conversion efficiencies have been made in order to minimize inconsistencies in the data and analyses. Sources of data used in this report are given in Appendix B and C; unavoidably the sources used over the 1976--1993 period have varied as some data bases are no longer available. In addition, we continue to see differences in specific data reported by different agencies for a given year. In particular, reported data on supply and usage in industrial/commercial/residential end-use categories have shown variability amongst the data gathering agencies, which bars detailed comparisons from year to year. Nonetheless, taken overall, valid generalizations can be made concerning gross trends and changes.

Borg, I.Y.; Briggs, C.K.

1994-04-01T23:59:59.000Z

182

ISOTHERMAL (DELTA)/(ALPHA-PRIME) TRANSFORMATION AND TTT DIAGRAM IN A PLUTONIUM GALLIUM ALLOY  

Science Conference Proceedings (OSTI)

Differential scanning calorimetry (DSC) is used as an alternative approach to determining the tine-temperature-transformation (TTT) diagram for the martensitic delta to alpha-prime transformation in a Pu-2.0 at% Ga alloy. Previous work suggests that the TTT diagram for a similar alloy exhibits an unusual double-C curve for isothermal holds of less than 100 minutes. Here, we extend this diagram to 18 hours, and confirm the double-C curve behavior. When the sample is cooled prior to the isothermal holds, the delta to alpha-prime transformation is observed as several overlapping exothermic peaks. These peaks are very reproducible, and they are believed to be the result of different kinds of delta to alpha-prime martensitic transformation. This may be due to the presence of different nucleation sites and/or different morphologies.

Oudot, B P; Blobaum, K M; Wall, M A; Schwartz, A J

2005-11-11T23:59:59.000Z

183

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Homeland Security; Chem., Bio, and Other Threats; Standards for Radiation Detection. ...

184

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Image Gallery : Image Details. No 72 DPI Version No 150 DPI Version 300 DPI Image. Title: Gold Nano Anchors Put Nanowires in Their Place. ...

185

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image 300 DPI Image . Title: Iron-based and Copper-Oxide High-Temperature Superconductors. ...

186

Idaho National Engineering Laboratory waste area groups 1--7 and 10 Technology Logic Diagram. Volume 1  

SciTech Connect

The Technology Logic Diagram was developed to provide technical alternatives for environmental restoration projects at the Idaho National Engineering Laboratory. The diagram (three volumes) documents suggested solutions to the characterization, retrieval, and treatment phases of cleanup activities at contaminated sites within 8 of the laboratory`s 10 waste area groups. Contaminated sites at the laboratory`s Naval Reactor Facility and Argonne National Laboratory-West are not included in this diagram.

O`Brien, M.C.; Meservey, R.H.; Little, M.; Ferguson, J.S.; Gilmore, M.C.

1993-09-01T23:59:59.000Z

187

Phase Diagram of CuCrO2 in a Magnetic Field  

SciTech Connect

The magnetic phase diagram of CuCrO2 is constructed as a function of magnetic field and anisotropy using a trial spin state built from harmonics of a fundamental ordering wavevector. Whereas the multiferroic phase of CuCrO2 is a modified spin spiral with a 3-sublattice (SL) period, the phase diagram also contains 1-SL, 2-SL, 4-SL, and 5-SL collinear states which may be accessi- ble in the nonstoichiometric compound CuCrO2+ . For small anisotropy, CuCrO2 is predicted to undergo a transition between two modified spiral states with an intervening 3-SL collinear phase.

Fishman, Randy Scott [ORNL

2011-01-01T23:59:59.000Z

188

User Science Images  

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

User Science Images User Science Images User Science Images Sort by: Default | Name | Date (low-high) | Date (high-low) | Category NIMROD-1.png FES: NIMROD Simulation February 18, 2010 | Author(s): Dr. Charlson C. Kim (University of Washington) | Category: Fusion Energy | URL: https://nimrodteam.org/ Download Image: NIMROD-1.png | png | 1.5 MB Trajectory of an energetic ion in a Field Reverse Configuration (FRC) magnetic field. Magnetic separatrix denoted by green surface. Spheres are colored by azimuthal velocity. Image courtesy of Charlson Kim, University of Washington; NERSC repos m487, mp21, m1552 Scheibe.png BER: Pore-Scale Fluid Flow for Subsurface Reactive Transport January 1, 2008 | Author(s): Timothy D. Scheibe, PNNL | Category: Environmental Science | URL: http://http://subsurface.pnl.gov/

189

Computer Coupling of Phase Diagrams and Thermochemistry 29 (2005) 289302 www.elsevier.com/locate/calphad  

E-Print Network (OSTI)

, the Mg­Ni­Ca system has not been investigated much [4] and no phase diagram of the ternary system the sublattice. In this study only one terminal solid solution phase is modeled, this is the Mg-hcp phase researcher who investigated the phase equilibria of the Mg­Ni system in 1908 by thermal analysis and reported

Medraj, Mamoun

190

Preliminary investigation of the use of Sankey diagrams to enhance building performance simulation-supported design  

Science Conference Proceedings (OSTI)

Building performance simulation (BPS) is a powerful tool for assessing the performance of unbuilt buildings to improve their design. However, numerous obstacles resulting from limited resources of designers and poor presentation of results reduce the ... Keywords: Sankey diagrams, building performance simulation, design tools, high-performance building design, user interface

William (Liam) O'Brien

2012-03-01T23:59:59.000Z

191

The phase diagram of ice Ih, II, and III: a quasi-harmonic study  

E-Print Network (OSTI)

The phase diagram of ice Ih, II, and III is studied by a quasi-harmonic approximation. The results of this approach are compared to phase diagrams previously derived by thermodynamic integration using path integral and classical simulations, as well as to experimental data. The studied models are based on both flexible (q-TIP4P/F) and rigid (TIP4P/2005, TIP4PQ/2005) descriptions of the water molecule. Many aspects of the simulated phase diagrams are reasonably reproduced by the quasi-harmonic approximation. Advantages of this simple approach are that it is free from the statistical errors inherent to computer simulations, both classical and quantum limits are easily accessible, and the error of the approximation is expected to decrease in the zero temperature limit. We find that the calculated phase diagram of ice Ih, II, and III depends strongly on the hydrogen disorder of ice III, at least for cell sizes typically used in phase coexistence simulations. Either ice II (in the classical limit) or ice III (in t...

Ramirez, R; Herrero, C P; 10.1063/1.4757064

2012-01-01T23:59:59.000Z

192

Improving NFA-based signature matching using ordered binary decision diagrams  

Science Conference Proceedings (OSTI)

Network intrusion detection systems (NIDS) make extensive use of regular expressions as attack signatures. Internally, NIDS represent and operate these signatures using finite automata. Existing representations of finite automata present a well-known ... Keywords: NIDS, ordered binary decision diagrams, signature matching

Liu Yang; Rezwana Karim; Vinod Ganapathy; Randy Smith

2010-09-01T23:59:59.000Z

193

First solar butterfly diagram from Schwabe's observations in 1825-1867  

E-Print Network (OSTI)

The original sunspot observations by Heinrich Samuel Schwabe of 1825-1867 were digitized and a first subset of spots was measured. In this initial project, we determined more than 14 000 sunspot positions and areas comprising about 11% of the total amount of spots available from that period. The resulting butterfly diagram has a typical appearance, but with evident north-south asymmetries.

Arlt, Rainer

2010-01-01T23:59:59.000Z

194

FLOW GATING  

DOE Patents (OSTI)

BS>This invention is a fast gating system for eiectronic flipflop circuits. Diodes connect the output of one circuit to the input of another, and the voltage supply for the receiving flip-flop has two alternate levels. When the supply is at its upper level, no current can flow through the diodes, but when the supply is at its lower level, current can flow to set the receiving flip- flop to the same state as that of the circuit to which it is connected. (AEC)

Poppelbaum, W.J.

1962-12-01T23:59:59.000Z

195

Supporting Generic Sketching-Based Input of Diagrams in a Domain-Specific Visual Language Meta-Tool  

Science Conference Proceedings (OSTI)

Software engineers often use hand-drawn diagrams as preliminary design artefacts and as annotations during reviews. We describe the addition of sketching support to a domain-specific visual language meta-tool enabling a wide range of diagram-based design ...

John Grundy; John Hosking

2007-05-01T23:59:59.000Z

196

Are forward designed or reverse-engineered UML diagrams more helpful for code maintenance?: a controlled experiment  

Science Conference Proceedings (OSTI)

Context: UML has been the de facto standard notation for modeling object-oriented software systems since its appearance in 1997. UML diagrams are important for maintainers of a system, especially when the software was developed by a different ... Keywords: UML diagrams, controlled experiment, reverse engineering, software maintenance, survey

Ana M. Fernndez-Sez; Michel R. V. Chaudron; Marcela Genero; Isabel Ramos

2013-04-01T23:59:59.000Z

197

GEOCHEMICAL PHASE DIAGRAMS AND GALE P.H. EDELMAN, S.W. PETERSON, V. REINER, AND J.H. STOUT  

E-Print Network (OSTI)

ater steam Steam 100 1 Pressure(bar) steam ice Figure 1. The phase diagram for the simple chemical system with phases ice, water, and steam. 1. Introduction A central problem in geochemistry has been illustrates the familiar phase diagram for a simple chemi- cal system that involves three phases (ice, water

Reiner, Victor

198

GEOCHEMICAL PHASE DIAGRAMS AND GALE P.H. EDELMAN, S.W. PETERSON, V. REINER, AND J.H. STOUT  

E-Print Network (OSTI)

water steam Steam 100 1 Pressure (bar) steam ice Figure 1. The phase diagram for the simple chemical system with phases ice, water, and steam. 1. Introduction A central problem in geochemistry has been illustrates the familiar phase diagram for a simple chemi­ cal system that involves three phases (ice, water

Reiner, Victor

199

Application of quaternary phase diagrams to compound semiconductor processing. Progress report, April 1, 1988--December 31, 1988  

DOE Green Energy (OSTI)

This paper considers the application of quaternary phase diagrams to understanding and predicting the behavior of II-VI thin film interfaces in photovoltaic devices under annealing conditions. Examples, listed in a table, include semiconductor/insulator/semiconductor (SIS) layered structures, II-VI/II-VI and III-V/II-VI epitaxial heterojunctions and oxidation of ternary compounds. Solid solubility is taken into account for quaternary phase diagrams of semiconductor systems. Using free energies of formation, a method to calculate the quaternary phase diagrams was developed. The Ga-As-II-VI and Cd-Te-Zn-O phase diagrams are reviewed as examples of quaternary phase diagrams without and with solid solubility.

Schwartzman, A.

1988-12-31T23:59:59.000Z

200

Flow cytometer  

DOE Patents (OSTI)

A Faraday cage enclosing the flow chamber of a cytometer and ground planes associated with each field deflection plate in concert therewith inhibit electric fields from varying the charge on designated events/droplets and further concentrates and increases forces applied to a charged event passing therethrough for accurate focus thereof while concomitantly inhibiting a potential shock hazard.

van den Engh, Ger (Seattle, WA)

1995-01-01T23:59:59.000Z

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


201

Flow cytometer  

DOE Patents (OSTI)

A Faraday cage is described which encloses the flow chamber of a cytometer. Ground planes associated with each field deflection plate inhibit electric fields from varying the charge on designated events/droplets and further concentrates. They also increase forces applied to a passing charged event for accurate focus while concomitantly inhibiting a potential shock hazard. 4 figs.

Van den Engh, G.

1995-11-07T23:59:59.000Z

202

The 8th International Symposium on Flow Visualization: Conference report  

Science Conference Proceedings (OSTI)

The 8th International Symposium on Flow Visualization (8ISFV) was held in Sorrento, Italy, from the 1st to the 4th of September 1998. The Symposium has attracted, by far, the largest number of participants in the history of the meeting. The 313 presented ... Keywords: acoustics, advanced techniques, aircrafts, airfoils, applications, bluff bodies, cavity flows, channel flows, combustion, delta wings, droplets break-up, electrodynamics, engines, flow around cylinders, flow visualization, fluidics, holography, industrial processes, infrared thermography, instability, interferometry, jets, jets in cross flow, liquid crystals, low reynolds number flows, machines, medical applications, multiphase flows, natural convection, numerical visualizations, particle image velocimetry, porous media, rotating fluids, schlieren, shock waves, supersonic flows, three dimensional flows, turbomachines, turbulence, two phase flows, unsteady flow, vortices

G. M. Carlomagno

1999-01-01T23:59:59.000Z

203

Large deformation diffeomorphisms with application to optic flow  

Science Conference Proceedings (OSTI)

Using standard statistical assumptions we derive a stochastic differential equation generating flows of diffeomorphisms. These stochastic processes provide a generative model for non-rigid registration and image warping problems. We give a mathematically ... Keywords: Image warping, Landmark matching, Maximum a posteriori estimation, Non-rigid registration, Optic flow, Renormalized Brownian density, Stochastic differential equations

Bo Markussen

2007-04-01T23:59:59.000Z

204

Remarks on $n$-dimensional Feynman diagrams, for example, which will appear in M-theory and in F-theory  

E-Print Network (OSTI)

We state some remarks on `$n$-dimensional Feynman diagrams' ($n\\in\\N$). There are different features between in the case of $n$-dimensional Feynman diagrams($n\\geqq3$) and in the 1-, 2-dimensional case.

Eiji Ogasa

2004-01-28T23:59:59.000Z

205

Phase diagram of spin-(1/2) bosons in a one-dimensional optical lattice  

Science Conference Proceedings (OSTI)

Systems of two coupled bosonic species are studied using mean field theory and the quantum Monte Carlo method. The phase diagram is characterized on the basis of both the mobility of the particles (Mott insulating or superfluid) and whether or not the system is magnetic (different populations for the two species). The phase diagram is shown to be population balanced for negative spin-dependent interactions, regardless of whether it is insulating or superfluid. For positive spin-dependent interactions, the superfluid phase is always polarized, and the two populations are imbalanced. However, the Mott-insulating phase with even commensurate filling always has balanced populations. In contrast, the Mott phase with odd commensurate filling has balanced populations in a very strong interaction and polarizes as the interaction gets weaker while still in the Mott phase.

Forges de Parny, L. de; Traynard, M.; Hebert, F. [INLN, Universite de Nice-Sophia Antipolis, CNRS, 1361 Route des Lucioles, F-06560 Valbonne (France); Rousseau, V. G. [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States); Scalettar, R. T. [Physics Department, University of California, Davis, Davis, California 95616 (United States); Batrouni, G. G. [INLN, Universite de Nice-Sophia Antipolis, CNRS, 1361 Route des Lucioles, F-06560 Valbonne (France); Centre for Quantum Technologies, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore)

2010-12-15T23:59:59.000Z

206

Phase diagram of chiral quark matter: Color and electrically neutral Fulde-Ferrell phase  

SciTech Connect

The phase diagram of charge and color neutral two-flavor color superconducting quark matter is studied including the homogeneous two-flavor superconductor (2SC) and the inhomogeneous Fulde-Ferrell (FF) phases within the Nambu-Jona-Lasinio model. The low-temperature domain T{<=}5 MeV of the phase diagram contains the FF phase, which borders at high temperatures to the 2SC phase. The critical temperature of phase transition from the 2SC to the unpaired state is in the range 20-30 MeV. We derive the equation of state of matter and its composition and show that matter in mature compact stars should be in the inhomogeneous FF-like superconducting state. We briefly discuss the astrophysical implications of such a phase in compact stars.

Huang Xuguang [Institute for Theoretical Physics, J. W. Goethe-University, D-60438 Frankfurt am Main (Germany); Frankfurt Institute for Advanced Studies, D-60438 Frankfurt am Main (Germany); Sedrakian, Armen [Institute for Theoretical Physics, J. W. Goethe-University, D-60438 Frankfurt am Main (Germany)

2010-08-15T23:59:59.000Z

207

Pressure-temperature phase diagram for a tin modified lead zirconate titanate ceramic.  

Science Conference Proceedings (OSTI)

Structural phase transformations between ferroelectric (FE), antiferroelectric (AFE), and paraelectric (FE) phases are frequently observed in the zirconia-rich phase region on the lead zirconate-titanate (PZT) phase diagram. Since the free energy difference among these phases is small, phase transformation can be easily induced by temperature, pressure and electric field. These induced transformation characteristics have been used for many practical applications. This study focuses on a hydrostatic pressure induced FE-to-AFE phase transformation in a tin modified PZT ceramic (PSZT). The relative phase stability between FE and AFE phases is determined by the dielectric permittivity measurement as a function of temperature from -60 C to 125 C. A pressure-temperature phase diagram for the PSZT system will be presented.

Grubbs, Robert K.; DiAntonio, Christopher Brian; Yang, Pin; Roesler, Alexander William; Montgomery, Stephen Tedford; Moore, Roger Howard

2010-06-01T23:59:59.000Z

208

Phase diagram for a cubic-Q interacting boson model Hamiltonian: Signs of triaxiality  

Science Conference Proceedings (OSTI)

An extension of the Interacting Boson Model that includes the cubic (QxQxQ){sup (0)} term is proposed. The potential energy surface for the cubic quadrupole interaction is explicitly calculated within the coherent state formalism using the complete ({chi}-dependent) expression for the quadrupole operator. The Q-cubic term is found to depend on the asymmetry deformation parameter {gamma} as a linear combination of cos(3{gamma}) and cos{sup 2}(3{gamma}) terms, thereby allowing for triaxiality. The phase diagram of the model in the large N limit is explored: The orders of the phase transition surfaces that define the phase diagram are described, and the possible nuclear equilibrium shapes are established. It is found that for this particular Hamiltonian, contrary to expectations, there is only a very tiny region of triaxiality, and that the transition from prolate to oblate shapes is so fast that, in most cases, the onset of triaxiality might go unnoticed.

Fortunato, L. [ECT, European Center for Theoretical Studies in Nuclear Physics and Related Areas, Strada delle Tabarelle 286, I-38050 Villazzano (Italy); Dipartimento di Fisica ''G.Galilei'', via Marzolo 8, I-35131 Padova (Italy); Istituto Nazionale di Fisica Nucleare, (INFN), Sezione di Padova, via Marzolo 8, I-35131 Padova (Italy); Alonso, C. E.; Arias, J. M. [Departamento de Fisica Atomica, Molecular y Nuclear, Facultad de Fisica, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla (Spain); Garcia-Ramos, J. E. [Departamento de Fisica Aplicada, Universidad de Huelva, E-21071 Huelva (Spain); Vitturi, A. [Dipartimento di Fisica ''G.Galilei'', via Marzolo 8, I-35131 Padova (Italy); Istituto Nazionale di Fisica Nucleare, (INFN), Sezione di Padova, via Marzolo 8, I-35131 Padova (Italy)

2011-07-15T23:59:59.000Z

209

Bifurcation diagram and the discriminant of a spectral curve of integrable systems on Lie algebras  

SciTech Connect

A bifurcation diagram is a stratified (in general, nonclosed) set and is one of the efficient tools of studying the topology of the Liouville foliation. In the framework of the present paper, the coincidence of the closure of a bifurcation diagram {Sigma}-bar of the moment map defined by functions obtained by the method of argument shift with the closure of the discriminant D-bar{sub z} of a spectral curve is proved for the Lie algebras sl(n+1), sp(2n), so(2n+1), and g{sub 2}. Moreover, it is proved that these sets are distinct for the Lie algebra so(2n). Bibliography: 22 titles.

Konyaev, Andrei Yu [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

2010-11-11T23:59:59.000Z

210

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... 72 DPI Image 150 DPI Image No 300 DPI Version. Title: NIST Finds that Ethanol-Loving Bacteria Accelerate Cracking of Pipeline Steels. ...

211

Developing grain boundary diagrams as a materials science tool: A case study of nickel-doped molybdenum  

SciTech Connect

Impurity-based, premelting-like, grain boundary (GB) ''phases'' (complexions) can form in alloys and influence sintering, creep, and microstructural development. Calculation of Phase Diagrams (CalPhaD) methods and Miedema-type statistical interfacial thermodynamic models are combined to forecast the formation and stability of subsolidus quasiliquid GB phases in binary alloys. This work supports a long-range scientific goal of developing ''GB (phase) diagrams'' as a new materials science tool to help controlling the materials fabrication processing and resultant materials properties. Using nickel-doped molybdenum as a model system, a type of GB diagram (called ''{lambda} diagram'') is computed to represent the temperature- and composition-dependent thermodynamic tendency for general GBs to disorder. Subsequently, controlled sintering experiments are conducted to estimate the GB diffusivity as a function of temperature and overall composition, and the experimental results correlate well with the computed GB diagram. Although they are not yet rigorous GB-phase diagrams with well-defined transition lines, the predictability and usefulness of such {lambda} diagrams are demonstrated. Related interfacial thermodynamic models and computational approaches are discussed.

Shi Xiaomeng; Luo Jian [School of Materials Science and Engineering, Center for Optical Materials Science and Engineering Technologies, Clemson University, Clemson, South Carolina 29634 (United States)

2011-07-01T23:59:59.000Z

212

Modifications to Smith's Method for Deriving Normalised Relations from a Functional Dependency Diagram  

E-Print Network (OSTI)

Smith's method (Smith, 1985) is a formal technique for deriving a set of normalised relations from a functional dependency diagram (FDD). Smith's original rules for deriving these relations are incomplete, as they do not fully address the issue of determining the foreign key links between relations. In addition, one of the rules for deriving foreign keys can produce incorrect results, while the other rule is difficult to automate. In this paper are described solutions these issues.

Nigel Stanger

1999-01-01T23:59:59.000Z

213

Phase diagram of dense quark matter in QCD-like theories  

Science Conference Proceedings (OSTI)

I report the results of a series of works on the phase diagram of theories with a different number of colors and/or quarks in a different representation than in QCD. Similarities as well as differences as compared to the real world are pointed out, focusing in particular on the interplay of confinement and chiral symmetry breaking. It will be argued that recent lattice data may provide us with a clue to understand deconfinement in cold dense quark matter.

Brauner, Tomas [Faculty of Physics, University of Bielefeld, D-33501 Bielefeld (Germany); Department of Theoretical Physics, Nuclear Physics Institute ASCR, CZ-25068 Rez (Czech Republic)

2011-05-23T23:59:59.000Z

214

Actes JFPC 2012 Compilation de CSP en Set-labeled Diagram  

E-Print Network (OSTI)

Actes JFPC 2012 Compilation de CSP en Set-labeled Diagram Alexandre Niveau H´el`ene Fargier C parfois ^etre ex´ecut´ees en ligne et en temps limit´e. Dans ce cas, la r´esolution du CSP n'est pas assez´e- sente l'assignation d'une variable ; l'ensemble des solu- tions d'un CSP correspond `a l'ensemble des

Paris-Sud XI, Université de

215

Y-12 Plant decontamination and decommissioning Technology Logic Diagram for Building 9201-4: Volume 3, Technology evaluation data sheets: Part B, Decontamination; robotics/automation; waste management  

SciTech Connect

This volume consists of the Technology Logic Diagrams (TLDs) for the decontamination, robotics/automation, and waste management areas.

1994-09-01T23:59:59.000Z

216

Mixing-Demixing Phase Diagram for Simple Liquids in Non-Uniform Electric Fields  

E-Print Network (OSTI)

We deduce the mixing-demixing phase diagram for binary liquid mixtures in an electric field for various electrode geometries and arbitrary constitutive relation for the dielectric constant. By focusing on the behavior of the liquid-liquid interface, we produce simple analytic expressions for the dependence of the interface location on experimental parameters. We also show that the phase diagram contains regions where liquid separation cannot occur under any applied field. The analytic expression for the boundary "electrostatic binodal" line reveals that the regions' size and shape depend strongly on the dielectric relation between the liquids. Moreover, we predict the existence of an "electrostatic spinodal" line that identifies conditions where the liquids are in a metastable state. We finally construct the phase diagram for closed systems by mapping solutions onto those of an open system via an effective liquid composition. For closed systems at a fixed temperature and mixture composition, liquid separation occurs in a finite "window" of surface potential (or charge density). Larger potentials or charge densities counterintuitively destroy the interface, leading to liquid mixing. These results give valuable guides for experiments by providing easily testable predictions for how liquids behave in non-uniform electric fields.

Jennifer Galanis; Yoav Tsori

2013-07-17T23:59:59.000Z

217

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Scanning tunneling microscope; Semiconductor; Spintronics. Description: [Left] A high resolution STM image of a manganese ...

218

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Nanotechnology--Nanomanufacturing; Optical Nano Vision. Description: A new optical imaging technology under ...

219

SPIE Medical Imaging Medical Imaging  

E-Print Network (OSTI)

1 SPIE Medical Imaging 2006 1 Medical Imaging Fundamentals Kenneth H. Wong, Ph.D. Division of Computer Assisted Interventions and Medical Robotics (CAIMR) Imaging Science and Information Systems (ISIS) Center Department of Radiology Georgetown University SPIE Medical Imaging 2006 2 Main Themes · Describe

Miga, Michael I.

220

Argonne CNM Highlight: Award for Ultrafast Imaging of Solar Energy...  

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

CNM's Nanophotonics Group and Argonne Chemical Sciences and Engineering's (CSE's) Photosynthesis Group, presented her poster, "Ultrafast Imaging of Solar Energy Flow in...

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


221

Injection engine as a control object. I. Schematic diagram of the engine and synthesis of a mathematical model  

Science Conference Proceedings (OSTI)

The paper is devoted to the analysis of injection engine as an object of automatic control by a built-in microprocessor system. The schematic diagram of the engine is presented; controlled, measured, and input variables are indicated; a mathematical ...

D. N. Gerasimov; H. Javaherian; D. V. Efimov; V. O. Nikiforov

2010-10-01T23:59:59.000Z

222

Dynamical Self-regulation in Self-propelled Particle Flows  

E-Print Network (OSTI)

We study a continuum model of overdamped self-propelled particles with an aligning interaction in two dimensions. By combining analytical and numerical work, we map out the phase diagram for generic parameters. We find that the system self-organizes into two robust structures in different regions of parameter space: solitary waves of ordered swarms moving through a low density disordered background, and stationary asters. The self-regulating nature of the flow yields phase separation, ubiquitous in this class of systems, and controls the formation of solitary waves. Self-propulsion and the associated active convection play a crucial role in aster formation. A new result of our work is a phase diagram that displays these different regimes in a unified manner.

Arvind Gopinath; Michael F. Hagan; M. Cristina Marchetti; Aparna Baskaran

2011-12-27T23:59:59.000Z

223

LLNL Energy Flow Charts | Open Energy Information  

Open Energy Info (EERE)

LLNL Energy Flow Charts LLNL Energy Flow Charts Jump to: navigation, search Tool Summary Name: LLNL Energy Flow Charts Agency/Company /Organization: Lawrence Livermore National Lab Sector: Energy Focus Area: Renewable Energy Topics: Pathways analysis References: LLNL Energy Flow Charts [1] Decision makers have long recognized the importance of visualizing energy and material flows in a way that distinguishes between resources, transformations and services. Research priorities can be defined in terms of changes to the flows, and the consequences of policy or technology shifts can be traced both upstream and downstream. The usefulness of this top-down view is limited by the level of detail that can be conveyed in a single image. We use two techniques to balance information content with readability. First we employe visualization

224

Improved Fluid Flow Measurements: Feedwater Flow  

Science Conference Proceedings (OSTI)

This report describes the combined results of a utility survey and site visits concerning feedwater flow measurement in fossil-fueled power plants. In addition, a summary is provided of the technologies available to measure the volumetric feedwater flow rate in plants. This volumetric flow rate can be converted to a mass flow rate by knowing the pressure and temperature of the flow media. Velocity meters, differential pressure meters, and other closed-conduit flowmeters are discussed along with ...

2012-11-28T23:59:59.000Z

225

The new Metals and Alloys Indexes -- Search Manual: A phase diagram research tool  

Science Conference Proceedings (OSTI)

A new Metals and Alloys (M&A) Indexes to the Powder Diffraction File (PDF) has been developed. These indexes will be immediately useful to material scientists because the indexes share many features with references such as Hansen, Elliot, Shunk, Pearson, and Villars and Calvert. These indexes, as contained in the Search Manual, may be used independently or in conjunction with the Powder Diffraction File. The book contains four indexes: two contain data for all materials in the M&A PDF, and two contain supporting data. The permuted-sort Alphabetical Formula Index brings together all entries containing a given element in alphabetical formula order. It has n entries for an n-component material and a straight-line format for the element being sorted to simplify reading the index. Thus, chemical knowledge can make identifications easier. Further, within binary and ternary phase diagrams, phases are listed in compositional order to facilitate direct use in phase diagram research. The Pearson Symbol Code Index has entries arranged in order of the Pearson Symbol Code, hence one can find all the materials with a given structure, and if desired, compare their atomic contents and lattice parameters. The latter are in the standard Crystal Data setting to aid in structural comparisons. The Common Names Index cross-references common metallurgical names, such as austenite or cementite, to the appropriate PDF data. The Strukturbericht Symbol Index cross-references Strukturbericht Symbols and the equivalent Pearson Symbols and Structure Prototypes. Examples of the uses of this index in phase diagram research are given.

Mueller, M.H. [Argonne National Lab., IL (United States); Wallace, P.L. [Los Alamos National Lab., NM (United States); Huang, T.C. [IBM Research Division, San Jose, CA (United States); Dann, J.N. [OSRAM Sylvania, Towanda, PA (United States)

1993-12-31T23:59:59.000Z

226

THE GAMMA-RAY BURST HUBBLE DIAGRAM AND ITS IMPLICATIONS FOR COSMOLOGY  

SciTech Connect

In this paper, we continue to build support for the proposal to use gamma-ray bursts (GRBs) as standard candles in constructing the Hubble diagram at redshifts beyond the current reach of Type Ia supernova observations. We confirm that correlations among certain spectral and light-curve features can indeed be used as luminosity indicators, and demonstrate from the most up-to-date GRB sample appropriate for this work that the {Lambda}CDM model optimized with these data is characterized by parameter values consistent with those in the concordance model. Specifically, we find that ({Omega}{sub m},{Omega}{sub {Lambda}}){approx}(0.25{sub -0.06}{sup +0.05}, 0.75{sub -0.05}{sup +0.06}), which are consistent, to within 1{sigma}, with (0.29, 0.71) obtained from the 9 yr Wilkinson Microwave Anisotropy Probe data. We also carry out a comparative analysis between {Lambda}CDM and the R{sub h} = ct universe and find that the optimal {Lambda}CDM model fits the GRB Hubble diagram with a reduced {chi}{sup 2}{sub dof}{approx}2.26, whereas the fit using R{sub h} = ct results in a {chi}{sup 2}{sub dof}{approx}2.14. In both cases, about 20% of the events lie at least 2{sigma} away from the best-fit curves, suggesting that either some contamination by non-standard GRB luminosities is unavoidable or that the errors and intrinsic scatter associated with the data are being underestimated. With these optimized fits, we use three statistical tools-the Akaike information criterion, the Kullback information criterion, and the Bayes information criterion-to show that, based on the GRB Hubble diagram, the likelihood of R{sub h} = ct being closer to the correct model is {approx}85%-96%, compared to {approx}4%-15% for {Lambda}CDM.

Wei Junjie; Wu Xuefeng [Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China); Melia, Fulvio, E-mail: jjwei@pmo.ac.cn, E-mail: xfwu@pmo.ac.cn, E-mail: fmelia@email.arizona.edu [Department of Physics, Applied Math Program, and Department of Astronomy, University of Arizona, AZ 85721 (United States)

2013-07-20T23:59:59.000Z

227

Phase Diagram of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet in a Magnetic Field  

SciTech Connect

The magnetic phase diagram of a geometrically-frustrated triangular-lattice antiferromagnet is evaluated as a function of external magnetic field and anisotropy using a trial spin state built from harmonics of a fundamental ordering wavevector. A non-collinear incommensurate state, observed to be chiral and ferroelectric in CuFeO2, is sandwiched between a collinear state with 4 sublattices (SLs) and a 5-SL state. Chiral and non-collinear 5-SL states are predicted to appear at fields above and below the collinear 5-SL states.

Fishman, Randy Scott [ORNL

2011-01-01T23:59:59.000Z

228

Phase Diagram of Two-Dimensional Polar Condensates in a Magnetic Field  

SciTech Connect

Spin-1 condensates in the polar (antiferromagnetic) phase in two dimensions are shown to undergo a transition of the Ising type, in addition to the expected Kosterlitz-Thouless (KT) transition of half-vortices, due to the quadratic Zeeman effect. We establish the phase diagram in terms of temperature and the strength of the Zeeman effect using Monte Carlo simulations. When the Zeeman effect is sufficiently strong, the Ising and KT transitions meet. For very strong Zeeman field the remaining transition is of the familiar integer KT type.

James, A. J. A.; Lamacraft, A. [Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4717 (United States)

2011-04-08T23:59:59.000Z

229

Nanoalloy composition-temperature phase diagram for catalyst design: Case study of Ag-Au  

Science Conference Proceedings (OSTI)

By coupling a cluster expansion with density functional theory (DFT) calculations, we determine the configurational thermodynamics (site preferences and occupations) for alloyed nanoparticles (NPs) as functions of composition (c) and temperature (T), exemplified using a 55-atom Ag-Au truncated cuboctahedron NP. The c-T phase diagram for site occupations gives detailed design information for alloyed NP, especially the thermodynamically stable active sites for catalysis and how they change with stoichiometry and processing temperature. Generally, Ag prefers core and Au prefers shell, agreeing with our universal core-shell preference assessed from DFT impurity segregation energies but with interesting multishell configurations having specific active sites.

Wang, Lin-Lin; Tan, Teck L.; Johnson, Duane D.

2012-07-23T23:59:59.000Z

230

Phase diagram and critical properties in the Polyakov-Nambu-Jona-Lasinio model  

SciTech Connect

We investigate the phase diagram of the so-called Polyakov-Nambu-Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavours. Chiral and deconfinement phase transitions are discussed, and the relevant order-like parameters are analyzed. The results are compared with simple thermodynamic expectations and lattice data. A special attention is payed to the critical end point: as the strength of the flavour-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear.

Sousa, C. A. de; Costa, P.; Ruivo, M. C. [Centro de Fisica Computacional, Departamento de Fisica, Universidade de Coimbra, P-3004-516 Coimbra (Portugal); Hansen, H. [IPNL, Universite de Lyon/Universite Lyon 1, CNRS/IN2P3, 4 rue E.Fermi, F-69622 Villeurbanne Cedex (France)

2011-05-23T23:59:59.000Z

231

Growth Diagram and Magnetic Properties of Hexagonal LuFe2O4 Thin Films  

Science Conference Proceedings (OSTI)

A growth diagram of Lu-Fe-O compounds on an MgO (111) substrate using pulsed laser deposition is constructed according to the experimental data. The LuFe2O4 phase can only be grown in a small range of temperature and O2 pressure conditions. Fundamental understanding of the growth mechanism of Lu-Fe-O compound films are gained in terms of the thermal chemistry at the surface. Superparamagnetism is observed in a film of LuFe2O4 clusters separated by the hexagonal LuFeO3 phase and structural defects.

Wang, Wenbin [ORNL; Gai, Zheng [ORNL; Chi, Miaofang [ORNL; Fowlkes, Jason Davidson [ORNL; Yi, Jieyu [ORNL; Zhu, Leyi [Argonne National Laboratory (ANL); Cheng, Xuemei [Bryn Mawr College; Keavney, David [Argonne National Laboratory (ANL); Snijders, Paul C [ORNL; Ward, Thomas Z [ORNL; Shen, Jian [ORNL; Xu, Xiaoshan [ORNL

2012-01-01T23:59:59.000Z

232

Surprises in the phase diagram of the Anderson model on the Bethe lattice  

E-Print Network (OSTI)

The Anderson model on the Bethe lattice is historically among the first for which an energy regime of extended states and a separate regime of localized states could be established. In this paper, we review recently discovered surprises in the phase diagram. Among them is that even at weak disorder, the regime of diffusive transport extends well beyond energies of the unperturbed model into the Lifshitz tails. As will be explained, the mechanism for the appearance of extended states in this non-perturbative regime are disorder-induced resonances. We also present remaining questions concerning the structure of the eigenfunctions and the associated spectral statistics problem on the Bethe lattice.

Simone Warzel

2012-12-18T23:59:59.000Z

233

Possible Orientation Effects to the Phase Diagram of Fundamental Composite Particles  

E-Print Network (OSTI)

We obtain possibly valuable information about the phase diagram of rather dense composite particles at high fermion as well as boson number density but low temperature, which is not accessible to relativistic heavy ion collision experiments. Our calculations could qualitatively measure the number of thermodynamic degrees of freedom at the time at which the matter (produced in heavy ion collisions which might be a deconfined quark-gluon plasma) comes into approximate local thermal equilibrium and begins to behave like a hydrodynamic fluid. Possible observational signatures associated with the theoretically proposed states of matter inside compact stars are discussed as well.

Kwang-Hua W. Chu

2006-09-02T23:59:59.000Z

234

Metal-Hydrogen Phase Diagrams in the Vicinity of Melting Temperatures  

DOE Green Energy (OSTI)

Hydrogen-metal interaction phenomena belong to the most exciting challenges of today's physical metallurgy and physics of solids due to the uncommon behavior of hydrogen in condensed media and to the need for understanding hydrogen's strong negative impact on properties of some high-strength steels and.alloys. The paper cites and summarizes research data on fundamental thermodynamic characteristics of hydrogen in some metals that absorb it endothermally at elevated temperatures. For a number of metal-hydrogen systems, information on some phase diagrams previously not available to the English-speaking scientific community is presented.

Shapovalov, V.I.

1999-01-06T23:59:59.000Z

235

Influence of trapping potentials on the phase diagram of bosonic atoms in optical lattices  

SciTech Connect

We study the effect of external trapping potentials on the phase diagram of bosonic atoms in optical lattices. We introduce a generalized Bose-Hubbard Hamiltonian that includes the structure of the energy levels of the trapping potential, and show that these levels are in general populated both at finite and zero temperature. We characterize the properties of the superfluid transition for this situation and compare them with those of the standard Bose-Hubbard description. We briefly discuss similar behaviors for fermionic systems.

Giampaolo, S.M.; Illuminati, F.; Mazzarella, G.; De Siena, S. [Dipartimento di Fisica 'E. R. Caianiello', Universita di Salerno, INFM UdR di Salerno, INFN Sezione di Napoli-Gruppo Collegato di Salerno, I-84081 Baronissi, SA (Italy)

2004-12-01T23:59:59.000Z

236

Influence of trapping potentials on the phase diagram of bosonic atoms in optical lattices  

E-Print Network (OSTI)

We study the effect of external trapping potentials on the phase diagram of bosonic atoms in optical lattices. We introduce a generalized Bose-Hubbard Hamiltonian that includes the structure of the energy levels of the trapping potential, and show that these levels are in general populated both at finite and zero temperature. We characterize the properties of the superfluid transition for this situation and compare them with those of the standard Bose-Hubbard description. We briefly discuss similar behaviors for fermionic systems.

S. M. Giampaolo; F. Illuminati; G. Mazzarella; S. De Siena

2004-03-04T23:59:59.000Z

237

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Carbon Nanotube Measurements. Description: Scanning electron microscope image of 'cleaned' carbon nanotubes at NIST (color added for ...

238

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Description: Engineering design image shows a cross-section of part of the planned ITER fusion reaction vessel. Diverter ...

239

Oak Ridge National Laboratory Technology Logic Diagram. Volume 1, Technology Evaluation: Part A, Decontamination and Decommissioning  

Science Conference Proceedings (OSTI)

The Strategic Roadmap for the Oak Ridge Reservation is a generalized planning document that identifies broad categories of issues that keep ORNL outside full compliance with the law and other legally binding agreements. Possible generic paths to compliance, issues, and the schedule for resolution of the issues one identified. The role of the Oak Ridge National Laboratory Technology Logic Diagram (TLD) is then to identify specific site issues (problems), identify specific technologies that can be brought to bear on the issues, and assess the current status and readiness of these remediation technologies within the constraints of the schedule commitment. Regulatory requirements and commitments contained in the Strategic Roadmap for the Oak Ridge Reservation are also included in the TLD as constraints to the application of immature technological solutions. Some otherwise attractive technological solutions may not be employed because they may not be deployable on the schedule enumerated in the regulatory agreements. The roadmap for ORNL includes a list of 46 comprehensive logic diagrams for WM of low-level, radioactive-mixed, hazardous, sanitary and industrial. and TRU waste. The roadmapping process gives comparisons of the installation as it exists to the way the installation should exist under full compliance. The identification of the issues is the goal of roadmapping. This allows accurate and timely formulation of activities.

Not Available

1993-09-01T23:59:59.000Z

240

Phase diagram of the hard-core Bose-Hubbard model on a checkerboard superlattice  

SciTech Connect

We obtain the complete phase diagram of the hard-core Bose-Hubbard model in the presence of a period-two superlattice in two and three dimensions. First we acquire the phase boundaries between the superfluid phase and the 'trivial' insulating phases of the model (the completely-empty and completely-filled lattices) analytically. Next, the boundary between the superfluid phase and the half-filled Mott-insulating phase is obtained numerically, using the stochastic series expansion algorithm followed by finite-size scaling. We also compare our numerical results against the predictions of several approximation schemes, including two mean-field approaches and a fourth-order strong-coupling expansion, where we show that the latter method in particular is successful in producing an accurate picture of the phase diagram. Finally, we examine the extent to which several approximation schemes, such as the random phase approximation and the strong-coupling expansion, give an accurate description of the momentum distribution of the bosons inside the insulating phases.

Hen, Itay; Rigol, Marcos [Department of Physics, Georgetown University, Washington, DC 20057 (United States); Iskin, M. [Department of Physics, Koc University, Rumelifeneri Yolu, 34450 Sariyer, Istanbul (Turkey)

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Phase diagram for magnetic reconnection in heliophysical, astrophysical, and laboratory plasmas  

Science Conference Proceedings (OSTI)

Recent progress in understanding the physics of magnetic reconnection is conveniently summarized in terms of a phase diagram which organizes the essential dynamics for a wide variety of applications in heliophysics, laboratory, and astrophysics. The two key dimensionless parameters are the Lundquist number and the macrosopic system size in units of the ion sound gyroradius. In addition to the conventional single X-line collisional and collisionless phases, multiple X-line reconnection phases arise due to the presence of the plasmoid instability either in collisional and collisionless current sheets. In particular, there exists a unique phase termed ''multiple X-line hybrid phase'' where a hierarchy of collisional islands or plasmoids is terminated by a collisionless current sheet, resulting in a rapid coupling between the macroscopic and kinetic scales and a mixture of collisional and collisionless dynamics. The new phases involving multiple X-lines and collisionless physics may be important for the emerging applications of magnetic reconnection to accelerate charged particles beyond their thermal speeds. A large number of heliophysical and astrophysical plasmas are surveyed and grouped in the phase diagram: Earth's magnetosphere, solar plasmas (chromosphere, corona, wind, and tachocline), galactic plasmas (molecular clouds, interstellar media, accretion disks and their coronae, Crab nebula, Sgr A*, gamma ray bursts, and magnetars), and extragalactic plasmas (active galactic nuclei disks and their coronae, galaxy clusters, radio lobes, and extragalactic jets). Significance of laboratory experiments, including a next generation reconnection experiment, is also discussed.

Ji Hantao [Center for Magnetic Self-Organization, Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States); Daughton, William [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2011-11-15T23:59:59.000Z

242

Spitzer SAGE survey of the Large Magellanic Cloud II: Evolved Stars and Infrared Color Magnitude Diagrams  

E-Print Network (OSTI)

Color-magnitude diagrams (CMDs) are presented for the Spitzer SAGE (Surveying the Agents of a Galaxy's Evolution) survey of the Large Magellanic Cloud (LMC). IRAC and MIPS 24 um epoch one data are presented. These data represent the deepest, widest mid-infrared CMDs of their kind ever produced in the LMC. Combined with the 2MASS survey, the diagrams are used to delineate the evolved stellar populations in the Large Magellanic Cloud as well as Galactic foreground and extragalactic background populations. Some 32000 evolved stars brighter than the tip of the red giant branch are identified. Of these, approximately 17500 are classified as oxygen-rich, 7000 carbon-rich, and another 1200 as ``extreme'' asymptotic giant branch (AGB) stars. Brighter members of the latter group have been called ``obscured'' AGB stars in the literature owing to their dusty circumstellar envelopes. A large number (1200) of luminous oxygen--rich AGB stars/M supergiants are also identified. Finally, there is strong evidence from the 24 um MIPS channel that previously unexplored, lower luminosity oxygen-rich AGB stars contribute significantly to the mass loss budget of the LMC (1200 such sources are identified).

R. D. Blum; J. R. Mould; K. A. Olsen; J. A. Frogel; M. Werner; M. Meixner; F. Markwick-Kemper; R. Indebetouw; B. Whitney; M. Meade; B. Babler; E. B. Churchwell; K. Gordon; C. Engelbracht; B. -Q. For; K. Misselt; U. Vijh; C. Leitherer; K. Volk; S. Points; W. Reach; J. L. Hora; J. -P. Bernard; F. Boulanger; S. Bracker; M. Cohen; Y. Fukui; J. Gallagher; V. Gorjian; J. Harris; D. Kelly; A. Kawamura; W. B. Latter; S. Madden; A. Mizuno; N. Mizuno; A. Nota; M. S. Oey; T. Onishi; R. Paladini; N. Panagia; P. Perez-Gonzalez; H. Shibai; S. Sato; L. Smith; L. Staveley-Smith; A. G. G. M. Tielens; T. Ueta; S. Van Dyk; D. Zaritsky

2006-08-08T23:59:59.000Z

243

NIPER Lab WARDEN -- Descriptive panels and diagrams for NIPER Lab WARDEN software. Volume 2  

SciTech Connect

This report is the second volume of a two-volume series on the NIPER Lab WARDEN computer program, a modular laboratory or pilot plant automation software designed for data acquisition/control/analysis/presentation. Volume 1 of the series is the User Manual that serves all users, whereas this volume is the Reference Manual intended for advanced users examining the structure or modifying the program. Volume 1 contains a brief introduction of LabVIEW and object-oriented programming, various features of the NIPER Lab WARDEN program, instructions on how to use these features, and several example problems and their step-by-step solutions. This volume (Volume 2) contains the complete program code needed to reproduce or modify the program. It includes the position in hierarchy, the connector pane, the front panel, and the block diagram for each of the virtual instruments (VI) in NIPER Lab WARDEN. The panels and block diagrams contained herein are generated from the computer program described in Volume 1 but are arranged to show and explain the structure and interrelationship between various elements of the program.

Mahmood, S.M.; Olsen, D.K.

1994-04-01T23:59:59.000Z

244

Restframe I-band Hubble diagram for type Ia supernovae up toredshift z ~; 0.5  

SciTech Connect

We present a novel technique for fitting rest frame I-bandlight curves on a data set of 42 type Ia supernovae (SNe Ia). Using the result of the fit, we construct a Hubble diagram with 26 SNe from the subset at 0.01 < z < 0.1. Adding two SNe at z {approx} 0.5 yields results consistent with a flat Lambda-dominated ''concordance universe'' (OmegaM,Omega Lambda) = (0.25, 0.75). For one of these, SN 2000fr, new near infrared data are presented. The high redshift supernova NIR data are also used to test for systematic effects in the use of SNe Ia as distance estimators. A flat, Lambda = 0, universe where the faintness of supernovae at z {approx} 0.5 is due to grey dust homogeneously distributed in the intergalactic medium is disfavored based on the high-z Hubble diagram using this small data-set. However, the uncertainties are large and no firm conclusion may be drawn. We explore the possibility of setting limits on intergalactic dust based on B - I and B - V color measurements, and conclude that about 20 well measured SNe are needed to give statistically significant results. We also show that the high redshift restframe I-band data points are better fit by light curve templates that show a prominent second peak, suggesting that they are not intrinsically underluminous.

Nobili, S.; Amanullah, R.; Garavini, G.; Goobar, A.; Lidman, C.; Stanishev, V.; Aldering, G.; Antilogus, P.; Astier, P.; Burns, M.S.; Conley, A.; Deustua, S.E.; Ellis, R.; Fabbro, S.; Fadeyev, V.; Folatelli,G.; Gibbons, R.; Goldhaber, G.; Groom, D.E.; Hook, I.; Howell, D.A.; Kim,A.G.; Knop, R.A.; Nugent, P.E.; Pain, R.; Perlmutter, S.; Quimby, R.; Raux, J.; Regnault, N.; Ruiz-Lapuente, P.; Sainton, G.; Schahmaneche, K.; Smith, E.; Spadafora, A.L.; Thomas, R.C.; Wang, L.

2005-04-01T23:59:59.000Z

245

The phase diagram of ice: a quasi-harmonic study based on a flexible water model  

E-Print Network (OSTI)

The phase diagram of ice is studied by a quasi-harmonic approximation. The free energy of all experimentally known ice phases has been calculated with the flexible q-TIP4P/F model of water. The only exception is the high pressure ice X, in which the presence of symmetric O-H-O bonds prevents its modeling with this empirical interatomic potential. The simplicity of our approach allows us to study ice phases at state points of the T-P plane that have been omitted in previous simulations using free energy methods based on thermodynamic integration. The effect in the phase diagram of averaging the proton disorder that appears in several ice phases has been studied. It is found particularly relevant for ice III, at least for cell sizes typically used in phase coexistence simulations. New insight into the capability of the employed water model to describe the coexistence of ice phases is presented. We find that the H-ordered ices IX and XIV, as well as the H-disordered ice XII, are particularly stable for this wate...

Ramirez, R; Herrero, C P

2013-01-01T23:59:59.000Z

246

The phase diagram of nuclear and quark matter at high baryon density  

E-Print Network (OSTI)

We review theoretical approaches to explore the phase diagram of nuclear and quark matter at high baryon density. We first look over the basic properties of quantum chromodynamics (QCD) and address how to describe various states of QCD matter. In our discussions on nuclear matter we cover the relativistic mean-field model, the chiral perturbation theory, and the approximation based on the large-Nc limit where Nc is the number of colors. We then explain the liquid-gas phase transition and the inhomogeneous meson condensation in nuclear matter with emphasis put on the relevance to quark matter. We commence the next part focused on quark matter with the bootstrap model and the Hagedorn temperature. Then we turn to properties associated with chiral symmetry and exposit theoretical descriptions of the chiral phase transition. There emerge some quark-matter counterparts of phenomena seen in nuclear matter such as the liquid-gas phase transition and the inhomogeneous structure of the chiral condensate. The third regime that is being recognized recently is what is called quarkyonic matter, which has both aspects of nuclear and quark matter. We closely elucidate the basic idea of quarkyonic matter in the large-Nc limit and its physics implications. Finally, we discuss some experimental indications for the QCD phase diagram and close the review with outlooks.

Kenji Fukushima; Chihiro Sasaki

2013-01-27T23:59:59.000Z

247

Y-12 Plant Remedial Action technology logic diagram. Volume I: Technology evaluation  

Science Conference Proceedings (OSTI)

The Y-12 Plant Remedial Action Program addresses remediation of the contaminated groundwater, surface water and soil in the following areas located on the Oak Ridge Reservation: Chestnut Ridge, Bear Creek Valley, the Upper and Lower East Fork Popular Creek Watersheds, CAPCA 1, which includes several areas in which remediation has been completed, and CAPCA 2, which includes dense nonaqueous phase liquid wells and a storage facility. There are many facilities within these areas that are contaminated by uranium, mercury, organics, and other materials. This Technology Logic Diagram identifies possible remediation technologies that can be applied to the soil, water, and contaminants for characterization, treatment, and waste management technology options are supplemented by identification of possible robotics or automation technologies. These would facilitate the cleanup effort by improving safety, of remediation, improving the final remediation product, or decreasing the remediation cost. The Technology Logic Diagram was prepared by a diverse group of more than 35 scientists and engineers from across the Oak Ridge Reservation. Most are specialists in the areas of their contributions. 22 refs., 25 tabs.

NONE

1994-09-01T23:59:59.000Z

248

Phase diagram of Symmetric Iterated Prisoner's Dilemma of Two-Companies with Partial Imitation Rule  

E-Print Network (OSTI)

The problem of two companies of agents with one-step memory playing game is investigated in the context of the Iterated Prisoner's Dilemma under the partial imitation rule, where a player can imitate only those moves that he has observed in his games with his opponent. We limit our study to the special case where the players in the two groups enjoy the same conditions on a fully connected network, so that there are only two payoff matrices required: one for players playing games with members of the same company, and the other one for players playing games with members from a different company. We show that this symmetric case of two companies of players can be reduced to the one-company case with an effective payoff matrix, from which a phase diagram for the players using the two dominant strategies, Pavlov and Grim Trigger can be constructed. The phase diagram is computed by numerical integration of the approximate mean value equations. The results are in good agreement with simulations of the two-company mo...

Zhang, Liangsheng; Antony, Mathis; Szeto, K Y

2011-01-01T23:59:59.000Z

249

FAQs: Copyrighted Images and Text on the Website | Department of Energy  

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

FAQs: Copyrighted Images and Text on the Website FAQs: Copyrighted Images and Text on the Website FAQs: Copyrighted Images and Text on the Website December 9, 2011 - 9:28am Addthis Retailers, researchers, and students of all ages often contact the Energy Savers webmaster to find out: "Can I use your (image, diagram, or text) in my presentation?" The answer is: yes! All of the material on Energysavers.gov is copyright-free, and is in the public domain. That means the public - you - are welcome to use it without express permission from Energy Savers. We have made most of our diagrams available for download in low- and high-resolution so you can use them in your print and Web presentations. Of course, you may want to cite the U.S. Department of Energy as the source, as this adds credibility to your work. Also consider adding a link

250

DECORRELATION TIMES OF PHOTOSPHERIC FIELDS AND FLOWS  

SciTech Connect

We use autocorrelation to investigate evolution in flow fields inferred by applying Fourier local correlation tracking (FLCT) to a sequence of high-resolution (0.''3), high-cadence ({approx_equal} 2 minute) line-of-sight magnetograms of NOAA active region (AR) 10930 recorded by the narrowband filter imager of the Solar Optical Telescope aboard the Hinode satellite over 2006 December 12 and 13. To baseline the timescales of flow evolution, we also autocorrelated the magnetograms, at several spatial binnings, to characterize the lifetimes of active region magnetic structures versus spatial scale. Autocorrelation of flow maps can be used to optimize tracking parameters, to understand tracking algorithms' susceptibility to noise, and to estimate flow lifetimes. Tracking parameters varied include: time interval {Delta}t between magnetogram pairs tracked, spatial binning applied to the magnetograms, and windowing parameter {sigma} used in FLCT. Flow structures vary over a range of spatial and temporal scales (including unresolved scales), so tracked flows represent a local average of the flow over a particular range of space and time. We define flow lifetime to be the flow decorrelation time, {tau}. For {Delta}t > {tau}, tracking results represent the average velocity over one or more flow lifetimes. We analyze lifetimes of flow components, divergences, and curls as functions of magnetic field strength and spatial scale. We find a significant trend of increasing lifetimes of flow components, divergences, and curls with field strength, consistent with Lorentz forces partially governing flows in the active photosphere, as well as strong trends of increasing flow lifetime and decreasing magnitudes with increases in both spatial scale and {Delta}t.

Welsch, B. T. [Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450 (United States); Kusano, K.; Yamamoto, T. T. [Solar Terrestrial Environment Laboratory, Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan); Muglach, K. [Code 674, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-03-10T23:59:59.000Z

251

Energy Saving Melting and Revert Reduction Technology (Energy SMARRT): Development of CCT Diagrams  

SciTech Connect

One of the most energy intensive industries in the U.S. today is in the melting and casting of steel alloys for use in our advanced technological society. While the majority of steel castings involve low or mild carbon steel for common construction materials, highly-alloyed steels constitute a critical component of many industries due to their excellent properties. However, as the amount of alloying additions increases, the problems associated with casting these materials also increases, resulting in a large waste of energy due to inefficiency and a lack of basic information concerning these often complicated alloy systems. Superaustenitic stainless steels constitute a group of Fe-based alloys that are compositionally balanced to have a purely austenitic matrix and exhibit favorable pitting and crevice corrosion resistant properties and mechanical strength. However, intermetallic precipitates such as sigma (???¯??????³) and Laves can form during casting or exposure to high-temperature processing, which degrade the corrosion and mechanical properties of the material. Knowledge of the times and temperatures at which these detrimental phases form is imperative if a company is to efficiently produce castings of high quality in the minimum amount of time, using the lowest amount of energy possible, while producing the least amount of material waste. Anecdotal evidence from company representatives revealed that large castings frequently had to be scrapped due to either lower than expected corrosion resistance or extremely low fracture toughness. It was suspected that these poor corrosion and / or mechanical properties were directly related to the type, amount, and location of various intermetallic phases that formed during either the cooling cycle of the castings or subsequent heat treatments. However, no reliable data existed concerning either the time-temperature-transformation (TTT) diagrams or the continuous-cooling-transformation (CCT) diagrams of the super-austenitics. The goal of this study was to accurately characterize the solid-solid phase transformations seen in cast superaustenitic stainless steels. Heat treatments were performed to understand the time and temperature ranges for intermetallic phase formations in alloys CN3MN and CK3McuN. Microstructures were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy and wavelength dispersive spectroscopy (EDS, WDS). In this way TTT and CCT diagrams could be developed for the matrix of samples chosen. As this study consisted of basic research into the development of TTT and CCT diagrams as an aid to the US steel casting industry, there is no formal commercialization plan associated with this task other than presentations and publications via the Steel Founders Society of America to their members. The author is confident that the data contained in this report can be used by steel foundries to refine their casting procedures in such a way as to reduce the amount of waste produced and energy wasted by significantly reducing or eliminating the need for remelting or recasting of material due to unwanted, premature intermetallic formation. This development of high alloy steel CCT diagrams was predicted to result in an average energy savings of 0.05 trillion BTU???¢????????s/year over a 10 year period (with full funding). With 65% of the proposed funding, current (2011) annual energy saving estimates, based on initial dissemination to the casting industry in 2011and market penetration of 97% by 2020, is 0.14 trillion BTU???¢????????s/year. The reduction of scrap and improvement in casting yield will also result in a reduction of environmental emissions associated with the melting and pouring of the steel. The average annual estimate of CO2 reduction per year through 2020 is 0.003 Million Metri

L. Scott Chumbley

2011-08-20T23:59:59.000Z

252

Science for Energy Flow | U.S. DOE Office of Science (SC)  

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

Science for Energy Flow Science for Energy Flow Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) News & Resources Program Summaries Brochures Reports Accomplishments Presentations BES and Congress Science for Energy Flow Energy Flow Diagram Seeing Matter Scale of Things Chart Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: sc.bes@science.doe.gov More Information » News & Resources Science for Energy Flow Print Text Size: A A A RSS Feeds FeedbackShare Page Powering the Future with a New Era of Science Click to enlarge photo. Enlarge Photo Energy Flow 2010

253

Image Resources  

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

Mosaic of earth and sky images Mosaic of earth and sky images Image Resources Free image resources covering energy, environment, and general science. Here are some links to energy- and environment-related photographic databases. Berkeley Lab Photo Archive Berkeley Lab's online digital image collection. National Science Digital Library (NSDL) NSDL is the Nation's online library for education and research in science, technology, engineering, and mathematics. The World Bank Group Photo Library A distinctive collection of over 11,000 images that illustrate development through topics such as Agriculture, Education, Environment, Health, Trade and more. Calisphere Compiles the digital collections of libraries, museums, and cultural heritage organizations across California, and organizes them by theme, such

254

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: Solar Cell. Description: Light that strikes this organic solar cell causes electrons to flow between its layers, creating an electric current. ...

255

Measurement of Temperature and Velocity Fields in a Heater Unit by Liquid Crystal Thermometry and Particle Image Velocimetry  

Science Conference Proceedings (OSTI)

Temperature and velocity fields in a heating unit for automobiles are measured through a model experiment in water tunnel using flow visualizations and image analysis to investigate the mixing mechanism of the flow that has passed through the heater ... Keywords: flow measurement, flow visualization, heater unit, liquid crystal, particle image velocimetry, temperature measurement

N. Fujisawa; H. Ikeda; R. Saito; M. Yokota

2000-08-01T23:59:59.000Z

256

flow_measurements_cryogenic  

Science Conference Proceedings (OSTI)

... A dynamic weighing system is used to measure ... using liquid nitrogen at flow rates of 1 ... For volumetric flow rate measurement, the uncertainty in fluid ...

2013-06-17T23:59:59.000Z

257

Multiphase flow calculation software  

DOE Patents (OSTI)

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

Fincke, James R. (Idaho Falls, ID)

2003-04-15T23:59:59.000Z

258

Multiphase Flow Modeling Research  

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

Science Chris Guenther, Director Computational Science Division RUA Spring Meeting, Morgantown, WV March 2013 2 NETL's Multiphase Flow Science Team * The Multiphase Flow Science...

259

The Intrinsic Structure of Optic Flow Incorporating Measurement Duality  

Science Conference Proceedings (OSTI)

The purpose of this article is to define optic flow for scalar and density images without using a priori knowledge other than its defining conservation principle, and to incorporate measurement ...

Luc Florack; Wiro Niessen; Mads Nielsen

1998-05-01T23:59:59.000Z

260

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... on the availability of this image. Title: Tiny Tubes May Aid Pharmacuetical R&D. Description: NIST scientists used pairs of ...

Note: This page contains sample records for the topic "flow diagram image" 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

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Magneto-optical image of magnetic fields within a YBCO superconductor showing electrically ... PHY, High-Temp Superconductors See also http ...

262

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... Title: New Imaging Tool is Boon to Fuel Cell Research. ... water being produced and removed inside the maze-like solid housing of fuel cells under a ...

263

Beam Energy Scan program at RHIC-experimental approach to the QCD Phase Diagram  

SciTech Connect

The Beam Energy Scan (BES) program at RHIC was launched with the specific aim to explore the QCD (Quantum Chromodynamics) Phase Diagram. Particular emphasis was given to the search for phase boundaries and the location of the Critical Point (CP). The first run with AuAu collisions at 7.7, 11.5, and 39 GeV took place in 2010, and the next one, with energies of 18 and 27 GeV, will start in a few months. The results of the first stage of the BES program obtained by the STAR (Solenoidal Tracker at RHIC) experiment are presented and discussed, as well as plans for the future of the program.

Odyniec, G., E-mail: G_Odyniec@lbl.gov [Lawrence Berkeley National Laboratory (United States)

2012-05-15T23:59:59.000Z

264

Phase diagram of Rydberg atoms with repulsive van der Waals interaction  

Science Conference Proceedings (OSTI)

We report a quantum Monte Carlo calculation of the phase diagram of bosons interacting with a repulsive inverse sixth power pair potential, a model for assemblies of Rydberg atoms in the local van der Waals blockade regime. The model can be parametrized in terms of just two parameters, the reduced density and temperature. Solidification happens to the fcc phase. At zero temperature, the transition density is found with the diffusion Monte Carlo method at density {rho}=3.9 (({Dirac_h}/2{pi}){sup 2}/mC{sub 6}){sup 3/4}, where C{sub 6} is the strength of the interaction. The solidification curve at nonzero temperature is studied with the path-integral Monte Carlo approach and is compared with transitions in corresponding harmonic and classical crystals. Relaxation mechanisms are considered in relation to present experiments.

Osychenko, O. N.; Astrakharchik, G. E.; Boronat, J. [Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, Campus Nord B4-B5, E-08034 Barcelona (Spain); Lutsyshyn, Y. [Institut fuer Physik, Universitaet Rostock, D-18051 Rostock (Germany); Lozovik, Yu. E. [Institute of Spectroscopy, 142190 Troitsk, Moscow region (Russian Federation)

2011-12-15T23:59:59.000Z

265

Phase diagram and water-like anomalies in core-softened shoulder-dumbbells system  

E-Print Network (OSTI)

Using molecular dynamics we studied the role of the anisotropy on the phase boundary and on the anomalous behavior of 250 dimeric particles interacting by a core-softened potential. This study led us to an unexpected result: the introduction of a rather small anisotropy, quantified by the distance between the particles inside each dimer, leads to the increase of the size of the regions in the pressure-temperature phase diagram of anomalies when compared to the isotropic monomeric case. However, as the anisotropy increases beyond a threshold the anomalous regions shrinks. We found that this behavior can be understood by decoupling the translational and non-translational kinetic energy components into different translational and non-translational temperatures.

Cristina Gavazzoni; Guilherme K. Gonzatti; Luiz Felipe Pereira; Luis Henrique Coelho Ramos; Paulo A. Netz; Marcia C. Barbosa

2013-09-03T23:59:59.000Z

266

Color neutrality effects in the phase diagram of the Polyakov--Nambu--Jona-Lasinio model  

SciTech Connect

The phase diagram of a two-flavor Polyakov-loop Nambu-Jona-Lasinio model is analyzed imposing the constraint of color charge neutrality. The main effect of this constraint is a coexistence of the chiral symmetry breaking ({chi}SB) and two-flavor superconducting phases. Additional effects are a shrinking of the {chi}SB domain in the T-{mu} plane and a shift of the end point to lower temperatures, but their quantitative importance is shadowed by the intrinsic uncertainties of the model. The effects can be understood in view of the presence of a nonvanishing color chemical potential {mu}{sub 8}, which is introduced to compensate the color charge density {rho}{sub 8} induced by a background color gauge mean field {phi}{sub 3}. At low temperatures and large chemical potentials the model exhibits a quarkyonic phase, which gets additional support from the diquark condensation.

Dumm, D. Gomez [IFLP, CONICET - Departmento de Fisica, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina); CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Blaschke, D. B. [Institute for Theoretical Physics, University of Wroclaw, Max Born Place 9, 50204 Wroclaw (Poland); Bogoliubov Laboratory of Theoretical Physics, JINR Dubna, Joliot-Curie Street 6, 141980 Dubna (Russian Federation); Grunfeld, A. G. [CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Physics Department, Comision Nacional de Energia Atomica, Avenida Libertador 8250, 1429 Buenos Aires (Argentina); Scoccola, N. N. [CONICET, Rivadavia 1917, 1033 Buenos Aires (Argentina); Physics Department, Comision Nacional de Energia Atomica, Avenida Libertador 8250, 1429 Buenos Aires (Argentina); Universidad Favaloro, Solis 453, 1078 Buenos Aires (Argentina)

2008-12-01T23:59:59.000Z

267

Swarming, Schooling, Milling: Phase diagram of a data-driven fish school model  

E-Print Network (OSTI)

We determine the basic phase diagram of the fish school model derived from data by Gautrais etal (PLoS Comp. Biol. 8, e1002678 (2012)), exploring its parameter space beyond the parameter values determined experimentally on groups of barred flagtails (Kuhlia mugil}) swimming in a shallow tank. A modified model is studied alongside the original one, in which an additional frontal preference is introduced in the stimulus/response function to account for the angular weighting of interactions. Our study, mostly limited to groups of moderate size (in the order of 100 individuals), focused not only on the transition to schooling induced by increasing the swimming speed, but also on the conditions under which a school can exhibit milling dynamics and the corresponding behavioral transitions. We show the existence of a transition region between milling and schooling, in which the school exhibits multistability and intermittency between schooling and milling for the same combination of individuals parameters. We also s...

Calovi, Daniel S; Ngo, Sandrine; Sire, Clment; Chat, Hugues; Theraulaz, Guy

2013-01-01T23:59:59.000Z

268

Oak Ridge National Laboratory Technology Logic Diagram. Volume 1, Technology Evaluation: Part B, Remedial Action  

Science Conference Proceedings (OSTI)

The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision-support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1 (Technology Evaluation), Vol. 2 (Technology Logic Diagram), and Vol. 3 (Technology Evaluation Data Sheets). Part A of Vols. 1 and 2 focuses on D&D. Part B of Vols. 1 and 2 focuses on RA of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the ranking os remedial technologies. Volume 2 (Pts. A, B, and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A, B, and C) contains the TLD data sheets. The focus of Vol. 1, Pt. B, is RA, and it has been divided into six chapters. The first chapter is an introduction, which defines problems specific to the ER Program for ORNL. Chapter 2 provides a general overview of the TLD. Chapters 3 through 5 are organized into necessary subelement categories: RA, characterization, and robotics and automation. The final chapter contains regulatory compliance information concerning RA.

Not Available

1993-09-01T23:59:59.000Z

269

Advanced system demonstration for utilization of biomass as an energy source. Volume V. Electrical and instrumentation elementary diagrams and instrument indexes  

DOE Green Energy (OSTI)

This volume contains detailed drawings and diagrams of electrical systems and instruments which will be included in a biomass cogeneration facility in Maine. (DMC)

None

1980-10-01T23:59:59.000Z

270

User Science Images  

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

PorousMedia3medres.png PorousMedia3medres.png ASCR: Carbon Dioxide Sequestration September 14, 2009 | Author(s): G. S. H. Pau, J. B. Bell, K. Pruess, A. S. Almgren, M. J. Lijewski, and K. Zhang | Category: Environmental Science | URL: http://esd.lbl.gov/research/projects/tough/documentation/proceedings/ Download Image: PorousMedia3medres.png | png | 159 KB Simulation of density-driven flow for CO2 storage in saline aquifers. Shown is a snapshot of the CO2 concentration after onset of convection overlayed on the AMR grid. Image courtesy of George Pau and John Bell (LBNL). Repo mp111 marcdayhydrogenflame.jpg ASCR: Lab-scale Flame Simulation September 1, 2009 | Author(s): M.S.Day, J.B. Bell, R.K. Cheng, S. Tachibana, V.E. Beckner and M.J. Lijewski (LBNL) | Category: Combustion | URL: https://apdec.org/APDEC_Progress_Fall09.shtml

271

INSTRUMENTATION FLOW PLAN SYMBOLS AND RECOMMENDED DRAWINGS. A STANDARD SYSTEM FOR ORNL INSTRUMENTATION APPLICATION WORK  

SciTech Connect

A system of symbols and identifications for processinstrumentation equipment to promote a uniformity of practice is presented. The system is for the following uses: designation and identification of instruments on flow pInns; recording specifinations, listings, requisitions, and purchase orders; indication of items on piping diagrams and other construction drawings; identification tagging of equipment; and description in technical and trade literature. (J.S.R.)

Adams, R.K.; Davis, D.G.; Hyland, R.F.

1958-02-21T23:59:59.000Z

272

Nanometric Optical Imaging Frontiers in Chemical Imaging  

E-Print Network (OSTI)

Nanometric Optical Imaging Frontiers in Chemical Imaging Seminar Series Presented by... Professor thermal imaging, chemical delivery and other new horizons. Finally, as part of this lecture, Lewis

273

Portable wastewater flow meter  

DOE Patents (OSTI)

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

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

1999-02-02T23:59:59.000Z

274

Portable wastewater flow meter  

DOE Patents (OSTI)

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

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

1990-01-01T23:59:59.000Z

275

Images, Video, & More  

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

Images, Video, & More Images BABAR Design drawings SLAC Image Gallery: BABAR SLAC Image Gallery: Aerial photos Videos Public lecture on "ANTIMATTER: What is it and where did it...

276

First principles calculation of phase diagrams of V-Nb, V-Ta and Nb-Ta alloys  

Science Conference Proceedings (OSTI)

We report the solid state phase diagram of V-Nb, V-Ta and Nb-Ta alloys computed by combining the density functional theory total energies with the cluster expansion and Monte Carlo techniques. From the computed phase diagrams, we find that V-Nb and Nb-Ta alloys form continuous series of solid solutions and the solid solution phase is stable down to ambient temperatures, consistent with experiments. The calculated bcc V-Ta phase diagram exhibits complete miscibility. Since the current cluster expansion ignore V{sub 2}Ta phase, the chemical interaction due to relatively large electronegativity difference, which cause the ordering of V{sub 2}Ta phase from the bcc solid solution, appears to manifest by making the solid solution phase remain stable for the complete concentration range, down to ambient temperatures, perhaps with some short-range-order. This work further demonstrates the dominant role of constituent strains in the accurate calculation of phase diagram of alloys of constituents with significant size mismatches.

Ravi, C.; Panigrahi, B. K.; Valsakumar, M. C.; Walle, A. Van de [Materials Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102 (India); Engineering and Applied Science Division, California Institute of Technology, Pasadena, California 91125 (United States)

2012-06-05T23:59:59.000Z

277

Prediction of formation of cubic boron nitride by construction of temperature-pressure phase diagram at the nanoscale  

Science Conference Proceedings (OSTI)

The size-dependent phase diagram of BN was developed on the basis of the nanothermodynamic theory. Our studied results suggest that cubic BN (c-BN) is more stable than hexagonal BN (h-BN) in the deep nanometer scale and the triple point of c-BN, h-BN and liquid shifts toward the lower temperature and pressure with decreasing the crystal size. Moreover, surface stress, which is determined by the experimental conditions, is the main reason to influence the formation of c-BN nuclei. The developed phase diagram of BN could help us to exploit new techniques for the fabrication of c-BN nanomaterials. - Graphical abstract: The size-dependent phase diagram of BN was developed on the basis of nanothermodynamic theory and it can be used to predict whether cubic BN (c-BN) can be formed at a given condition. Highlights: > Size-dependent phase diagram of BN is constructed. > Cubic BN is more stable than hexagonal BN in the deep nanometer scale. > Formation of nanosized cubic BN depends on surface stress.

Hu Shengliang, E-mail: hsliang@yeah.net [Science and Technology on Electronic Test and Measurement Laboratory, Key Laboratory of Instrumentation Science and Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051 (China); School of Materials Science and Engineering, North University of China, Taiyuan 030051 (China); Yang Jinlong; Liu Wei; Dong Yingge; Cao Shirui [School of Materials Science and Engineering, North University of China, Taiyuan 030051 (China); Liu Jun [Science and Technology on Electronic Test and Measurement Laboratory, Key Laboratory of Instrumentation Science and Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051 (China)

2011-07-15T23:59:59.000Z

278

Phase diagram of amorphous solid water: Low-density, high-density, and very-high-density amorphous ices  

E-Print Network (OSTI)

for the understanding of the transformation between the different amorphous ices and the two hypothesized phasesPhase diagram of amorphous solid water: Low-density, high-density, and very-high-density amorphous ices Nicolas Giovambattista,1,2 H. Eugene Stanley,2 and Francesco Sciortino3 1 Department of Chemical

Sciortino, Francesco

279

California energy flow in 1989  

DOE Green Energy (OSTI)

California's energy use showed a modest increase (2.2%) in 1989 over 1988 which was in keeping with the steady increase in population that the state has experienced annually during the decade. All end-use sectors (residential, commercial, industrial, transportation, etc.) contributed to the growth. The larger demand was met by increased imports of all major fuels. Only electrical imports remained close to 1988 levels, in part due to increased output from Diablo Canyon nuclear plant whose performance exceeded expectations. California's per capita energy consumption has traditionally been below the national average due to the relatively benign climate associated with its centers of population. The largest single use for energy in the state was for transportation which overtook industrial usage in the 60's. Use of highway fuels continued to grow and reached all time highs in 1989. Highway congestion, a major problem and concern in the state, is anticipated to grow as the number of licensed drivers increases; in 1989 the increase was 3.4%. Output from the The Geysers Geothermal fields, the largest in the world, continued to falter as the steam output fell. Nonetheless new resources at the Coso Geothermal Resource Area and at the Wendel Geothermal field came on line during the year, and other geothermal areas were under active development. Novel sources of renewable energy (solar, wind, etc.) grew; however, collectively they made only a small contribution to the overall energy supply. Cogenerated electricity sold to the utilities by small power producers inexplicably fell in 1989 although estimates of the total capacity available rose. Energy flow diagrams illustrate energy sources and energy consumption.

Borg, I.Y.; Briggs, C.K.

1991-02-06T23:59:59.000Z

280

Pore-Level Examination of Gel Destruction During Oil Flow  

E-Print Network (OSTI)

Pore-Level Examination of Gel Destruction During Oil Flow R.S. Seright, SPE, New Mexico Petroleum-scale X-ray computed microtomography (XMT) images were obtained at a variety of oil (hexadecane(III)-acetate-hydrolyzed polyacrylamide (HPAM) gel]. For each pore in our image volume, we followed oil and water saturations

New York at Stoney Brook, State University of

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281

Bypass flow computations on the LOFA transient in a VHTR  

Science Conference Proceedings (OSTI)

Bypass flow in the prismatic gas-cooled very high temperature reactor (VHTR) is not intentionally designed to occur, but is present in the gaps between graphite blocks. Previous studies of the bypass flow in the core indicated that the cooling provided by flow in the bypass gaps had a significant effect on temperature and flow distributions for normal operating conditions. However, the flow and heat transports in the core are changed significantly after a Loss of Flow Accident (LOFA). This study aims to study the effect and role of the bypass flow after a LOFA in terms of the temperature and flow distributions and for the heat transport out of the core by natural convection of the coolant for a 1/12 symmetric section of the active core which is composed of images and mirror images of two sub-region models. The two sub-region models, 9 x 1/12 and 15 x 1/12 symmetric sectors of the active core, are employed as the CFD flow models using computational grid systems of 70.2 million and 117 million nodes, respectively. It is concluded that the effect of bypass flow is significant for the initial conditions and the beginning of LOFA, but the bypass flow has little effect after a long period of time in the transient computation of natural circulation.

Yu-Hsin Tung; Richard W. Johnson; Yuh-Ming Ferng; Ching-Chang Chieng

2014-01-01T23:59:59.000Z

282

Help:Images | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Help page Edit History Facebook icon Twitter icon » Help:Images Jump to: navigation, search This page explains the image syntax when editing the wiki. You or another user must usually upload an image before you can use it on a page. Contents 1 Syntax 2 Format 3 Alignment 3.1 Vertical alignment 4 Size and Frame 5 Stopping text flow 6 Gallery of images 6.1 Parameters 7 Links 7.1 Link to description page 7.2 Link directly to file 8 Requisites 9 Files at other websites Syntax The full syntax for displaying an image is: [[Image:{file_name}|{options}]] Where options can be zero or more of the following, separated by pipes: border, frame, thumb, or frameless: Controls how the image is

283

Consistency and Advantage of Loop Regularization Method Merging with Bjorken-Drell's Analogy Between Feynman Diagrams and Electrical Circuits  

E-Print Network (OSTI)

The consistency of loop regularization (LORE) method is explored in multiloop calculations. A key concept of the LORE method is the introduction of irreducible loop integrals (ILIs) which are evaluated from the Feynman diagrams by adopting the Feynman parametrization and ultraviolet-divergence-preserving(UVDP) parametrization. It is then inevitable for the ILIs to encounter the divergences in the UVDP parameter space due to the generic overlapping divergences in the 4-dimensional momentum space. By computing the so-called $\\alpha\\beta\\gamma$ integrals arising from two loop Feynman diagrams, we show how to deal with the divergences in the parameter space with the LORE method. By identifying the divergences in the UVDP parameter space to those in the subdiagrams, we arrive at the Bjorken-Drell's analogy between Feynman diagrams and electrical circuits. The UVDP parameters are shown to correspond to the conductance or resistance in the electrical circuits, and the divergence in Feynman diagrams is ascribed to the infinite conductance or zero resistance. In particular, the sets of conditions required to eliminate the overlapping momentum integrals for obtaining the ILIs are found to be associated with the conservations of electric voltages, and the momentum conservations correspond to the conservations of electrical currents, which are known as the Kirchhoff's laws in the electrical circuits analogy. As an application to the massive scalar $\\phi^4$ theory, it enables us to obtain the well-known logarithmic running of the coupling constant and the consistent power-law running of the scalar mass at two loop level. Especially, we present an explicit demonstration on the general procedure of applying the LORE method to the multiloop calculations of Feynman diagrams when merging with the advantage of Bjorken-Drell's circuit analogy.

Da Huang; Yue-Liang Wu

2011-08-18T23:59:59.000Z

284

Phase diagram and universality of the Lennard-Jones gas-liquid system Hiroshi Watanabe, Nobuyasu Ito, and Chin-Kun Hu  

E-Print Network (OSTI)

Phase diagram and universality of the Lennard-Jones gas-liquid system Hiroshi Watanabe, Nobuyasu JOURNAL OF CHEMICAL PHYSICS 136, 204102 (2012) Phase diagram and universality of the Lennard-Jones gas-liquid; published online 23 May 2012) The gas-liquid phase transition of the three-dimensional Lennard

285

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... from the bright glare in the distance transmit images of a cat-like face at ... Though false color has been added to the cats faces, they are otherwise ...

286

NIST Image Gallery: Image Details  

Science Conference Proceedings (OSTI)

... a href http://www.nist.gov/public_affairs/images/Nanopore 20device.avi See video /a PHY, DARPA, spectroscopy See also http://www.nist.gov/pml ...

287

Illuminated Diagrams: Using Light and Print to Comparative Advantage W. Bradford Paley  

E-Print Network (OSTI)

the representation of information. Raskar's "Shader Lamps," e.g. [4] project onto dioramas to add textures; G. Welch, K-L Low, D. Bandyopadhyay, "Shader Lamps: Animating Real Objects with Image Based

Indiana University

288

Unsteady flow volumes  

SciTech Connect

Flow volumes are extended for use in unsteady (time-dependent) flows. The resulting unsteady flow volumes are the 3 dimensional analog of streamlines. There are few examples where methods other than particle tracing have been used to visualize time varying flows. Since particle paths can become convoluted in time there are additional considerations to be made when extending any visualization technique to unsteady flows. We will present some solutions to the problems which occur in subdivision, rendering, and system design. We will apply the unsteady flow volumes to a variety of field types including moving multi-zoned curvilinear grids.

Becker, B.G.; Lane, D.A.; Max, N.L.

1995-03-01T23:59:59.000Z

289

The Structure and Phase Diagram of Chiral Alkyl-Serine Monolayers on Mercury  

Science Conference Proceedings (OSTI)

The structure of liquid-mercury-supported Langmuir films (LFs) of chiral serine-modified fatty acid molecules was studied as a function of length, n = 8-22 carbons, temperature, T = 5-25 C, and surface coverage, A {approx} 40-200 {angstrom}{sup 2} per molecule, for both homochiral and heterochiral compounds. Using surface pressure {pi}-area A isotherms and surface-specific synchrotron X-ray diffraction methods the phase diagram was determined in detail. No lateral order was found for phases comprising surface-parallel molecules, in contrast with unmodified fatty acid LFs on mercury. For phases comprising standing-up molecules, long range lateral order was found for n {>=} 12, but no order for n = 8. The molecules in the ordered phases are extended, and tilt rigidly by {approx}40{sup o} from the surface normal. The homochiral LFs pack in an oblique, single-molecule, unit cell. The heterochiral LFs pack in a body-centered rectangular unit cell, containing two molecules. Unlike unmodified fatty acid LFs, the structure of the standing-up phase does not vary with n, T or A. The interactions underlying these characteristics, and the role of chirality, are discussed.

L Tamam; D Medina; T Menahem; Y Mastai; E Sloutskin; S Yefet; M Deutsch

2011-12-31T23:59:59.000Z

290

Magnetic phase diagram of disordered Ni-Mn near the multicritical point  

Science Conference Proceedings (OSTI)

From detailed magnetization data taken under various field-cooling conditions, the magnetic phase diagram of temperature versus composition is determined for disordered Ni-Mn of Mn concentration (x) near 25 at. %. With increasing x, the ferromagnetic Curie-point (T/sub c/) line descends and meets the ascending line for the spin-glass reentrance temperature (T/sub f//sub g/) at a multicritical point (MCP) located at x = 23.9, T = 102 K, from which the spin-glass freezing-temperature (T/sub g/) line emerges and reaches a maximum at higher x. The reentrant spin-glass (SG) ordering is accompanied by a net ferromagnetic (FM) moment, thus describing a mixed ferro-spin-glass (FSG) state, which is separated from the normal SG state by a boundary line that extends essentially vertically down in temperature from the MCP. Moreover, it is shown that the SG ordering of the FSG state probably persists into the FM regime above T/sub f//sub g/, where T/sub f//sub g/ (like T/sub g/) remains defined operationally by the appearance of irreversible and time-dependent magnetic effects.

Abdul-Razzaq, W.; Kouvel, J.S.

1987-02-01T23:59:59.000Z

291

ULTRAVIOLET PROPERTIES OF GALACTIC GLOBULAR CLUSTERS WITH GALEX. I. THE COLOR-MAGNITUDE DIAGRAMS  

SciTech Connect

We present Galaxy Evolution Explorer (GALEX) data for 44 Galactic globular clusters (GCs) obtained during three GALEX observing cycles between 2004 and 2008. This is the largest homogeneous data set on the UV photometric properties of Galactic GCs ever collected. The sample selection and photometric analysis are discussed, and color-magnitude diagrams (CMDs) are presented. The blue and intermediate-blue horizontal branch is the dominant feature of the UV CMDs of old Galactic GCs. Our sample is large enough to display the remarkable variety of horizontal branch shapes found in old stellar populations. Other stellar types that are obviously detected are blue stragglers and post-core-He burning stars. The main features of UV CMDs of Galactic GCs are briefly discussed. We establish the locus of post-core-He burning stars in the UV CMD and present a catalog of candidate asymptotic giant branch (AGB), AGB-manque, post early-AGB, and post-AGB stars within our cluster sample.

Schiavon, Ricardo P.; Rhee, Jaehyon [Gemini Observatory, 670 N. A'Ohoku Place, Hilo, HI 96720 (United States); Dalessandro, Emanuele; Ferraro, Francesco R.; Lanzoni, Barbara, E-mail: rschiavon@gemini.edu, E-mail: emanuele.dalessandr2@unibo.it, E-mail: francesco.ferraro3@unibo.it, E-mail: barbara.lanzoni@unibo.it [Dipartimento di Astronomia, Universita degli Studi di Bologna, via Ranzani 1, I-40127 Bologna (Italy); and others

2012-05-15T23:59:59.000Z

292

Implementation of a pressure and rate dependent Forming Limit Diagram model into NIKE and DYNA  

SciTech Connect

The Forming Limit Diagram (FLD) has been used for decades as an aid to successful sheet metal forming. In this work, we describe the incorporation of the FLD technique into the DYNA and NIKE codes at LLNL along with applications that led to the developments. The algorithm is currently available in the public version of DYNA3D. Several augmentations of the basic technique have been made available due to the necessity of their incorporation to solve programmatic problems of interest at LLNL. Illustration of the use of the FLD model is shown for a dome geometry similar to that used in the Limiting Dome Height (LDH) test. This early example uses the simplest FLD option (analogous to circle grid) and shows the relative merits of this method versus scalar plastic work in prediction of tearing. In a phenomenological extension of the method, a pressure-dependent (FLD+P) method is used to successfully predict the relative design merits of stainless steel forgings. A final application to sheet stamping of a Boeing 757 door frame shows how the scatter plot circle grid option and strain path plots can be used to predict when preforms and intermediate anneals are necessary. The phenomenological nature of the FLD model as implemented is discussed relative to alternative approaches of calculating the FLD and its path dependence.

Logan, R.W. [Lawrence Livermore National Lab., CA (United States); Thomas, D.B.; Young, G.K. [Boeing Commercial Airplane Group, Seattle, WA (United States)

1995-06-01T23:59:59.000Z

293

Ferroelectric thin films phase diagrams with self-polarized phase and electret state  

E-Print Network (OSTI)

In present work we calculated the three components of polarization in phenomenological theory framework by consideration of three Euler-Lagrange equations, which include mismatch effect and influence of misfit dislocations, surface piezoelectric effect caused by broken symmetry on the film surface, surface tension and depolarization field. These equations were solved with the help of variational method proposed by us earlier. This approach lead to the free energy in the form of algebraic equation of different powers of polarization components with the coefficients dependent on film thickness, mismatch effect, temperature and other parameters. Several new terms proportional to misfit strain appeared in the free energy expression: built-in electric field normal to the surface originated from piezoelectricity in vicinity of surface even for the cubic symmetry of bulk ferroelectrics, odd powers of normal to the surface component of polarization. The obtained free energy made it possible to calculate all properties of the film by conventional procedure of minimization. As an example we calculated phase diagrams of PZT 50/50 films on different substrates that lead to compressive or tensile strain. The calculations of pyroelectric coefficient and dielectric permittivity temperature dependencies had shown the electret-like polar state, e.g. existence of pyroelectricity, below the critical thickness of ferroelectric-paraelectric phase transitions. Our theory predicts, that mismatch-induced field could be compatible with thermodynamic coercive field and thus cause self-polarization in thin ferroelectric films.

M. D. Glinchuk; A. N. Morozovska; E. A. Eliseev

2005-04-21T23:59:59.000Z

294

History Images  

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

History Images History Images Los Alamos History in Images Los Alamos has a proud history and heritage of almost 70 years of science and innovation. The people of the Laboratory work on advanced technologies to provide the best scientific and engineering solutions to many of the nation's most crucial security challenges. Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Back in the day Back in the day LA bridge in Los Alamos LA bridge in Los Alamos 1945 Army-Navy "E" Award 1945 Army-Navy "E" Award Louis Rosen Louis Rosen Bob Van Ness Robert Kuckuck and Michael Anastasio Bob Van Ness Robert Kuckuck and Michael Anastasio TA-18 TA-18 Elmer Island TU-4 assembly area Elmer Island TU-4 assembly area

295

Unsteady Flow Visualization at Part-Load Conditions of a Radial Diffuser Pump: by PIV and CFD  

Science Conference Proceedings (OSTI)

The present study provides flow visualization on complex internal flows in a radial diffuser pump under part-load conditions by using the three-dimensional Navier-Stokes code CFX-10 with Detached Eddy Simulation (DES) turbulence model. Particle Image ... Keywords: CFD, Flow separation, Flow visualization, PIV, Radial pump

J. Feng; F.-K. Benra; H. J. Dohmen

2009-01-01T23:59:59.000Z

296

Structure of Offshore Flow  

Science Conference Proceedings (OSTI)

The horizontal and vertical structure of the mean flow and turbulent fluxes are examined using aircraft observations taken near a barrier island on the east coast of the United States during offshore flow periods. The spatial structure is ...

Dean Vickers; L. Mahrt; Jielun Sun; Tim Crawford

2001-05-01T23:59:59.000Z

297

Ultrasonic flow metering system  

DOE Patents (OSTI)

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

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

2002-01-01T23:59:59.000Z

298

Elbow mass flow meter  

SciTech Connect

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

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

1994-01-01T23:59:59.000Z

299

Direct pore-level modeling of incompressible fluid flow in porous media  

Science Conference Proceedings (OSTI)

We present a dynamic particle-based model for direct pore-level modeling of incompressible viscous fluid flow in disordered porous media. The model is capable of simulating flow directly in three-dimensional high-resolution micro-CT images of rock samples. ... Keywords: Incompressible fluid flow, Micro-CT X-ray imaging, Moving particle semi-implicit, Particle-based methods, Porous media

Saeed Ovaysi; Mohammad Piri

2010-09-01T23:59:59.000Z

300

Redox Flow Batteries: a Review  

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

1137-1164 Date Published 102011 ISSN 1572-8838 Keywords Flow battery, Flow cell, Redox, Regenerative fuel cell, Vanadium Abstract Redox flow batteries (RFBs) are enjoying a...

Note: This page contains sample records for the topic "flow diagram image" 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

Oak Ridge K-25 Site Technology Logic Diagram. Volume 3, Technology evaluation data sheets; Part A, Characterization, decontamination, dismantlement  

Science Conference Proceedings (OSTI)

The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This report is part A of Volume 3 concerning characterization, decontamination, and dismantlement.

Fellows, R.L. [ed.

1993-02-26T23:59:59.000Z

302

Lateral flow strip assay  

DOE Patents (OSTI)

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

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

2011-03-08T23:59:59.000Z

303

Confronting the Hubble Diagram of Gamma-Ray Bursts with Cardassian Cosmology  

E-Print Network (OSTI)

We construct the Hubble diagram (HD) of Gamma-Ray Bursts (GRBs) with redshifts reaching up to $z \\sim 6$, by using five luminosity vs. luminosity indicator relations calibrated with the Cardassian cosmology. This model has a major interesting feature: despite of being matter-dominated and flat, it can explain the present accelerate expansion of the universe. This is the first study of this class of models using high redshift GRBs. We have performed a $\\chi$-square statistical analysis of the GRBs calibrated with the Cardassian model, and also combined them with both the current Cosmic Microwave Background and Baryonic Acoustic Oscillation data. Our results show consistency between the current observational data and the model predictions. In particular, the best-fit parameters obtained from the $\\chi^2$-analysis are in agreement with those obtained from the Concordance Cosmology ($\\Lambda$-CDM). We determine the redshift at which the universe would start to follow the Cardassian expansion, i. e., \\zc, and both the redshift at which the universe had started to accelerate, i. e., \\zac, and the age-redshift relation $H_0t_0$. Our results also show that the universe, from the point of view of GRBs, had undergo a transition to acceleration at a redshift $z \\approx 0.2-0.7$, which agrees with the SNIa results. Hence, after confronting the Cardassian scenario with the GRBs HD and proving its consistency with it, we conclude that GRBs should indeed be considered a complementary tool to several other astronomical observations for studies of high accuracy in cosmology.

Herman J. Mosquera Cuesta; Habib Dumet M.; Cristina Furlanetto

2007-08-10T23:59:59.000Z

304

Quark-mass dependence of the three-flavor QCD phase diagram at zero and imaginary chemical potential: Model prediction  

Science Conference Proceedings (OSTI)

We draw the three-flavor phase diagram as a function of light- and strange-quark masses for both zero and imaginary quark-number chemical potential, using the Polyakov-loop extended Nambu-Jona-Lasinio model with an effective four-quark vertex depending on the Polyakov loop. The model prediction is qualitatively consistent with 2+1 flavor lattice QCD prediction at zero chemical potential and with degenerate three-flavor lattice QCD prediction at imaginary chemical potential.

Sasaki, Takahiro; Sakai, Yuji; Yahiro, Masanobu [Department of Physics, Graduate School of Sciences, Kyushu University, Fukuoka 812-8581 (Japan); Kouno, Hiroaki [Department of Physics, Saga University, Saga 840-8502 (Japan)

2011-11-01T23:59:59.000Z

305

Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4. Volume 1: Technology evaluation  

Science Conference Proceedings (OSTI)

During World War 11, the Oak Ridge Y-12 Plant was built as part of the Manhattan Project to supply enriched uranium for weapons production. In 1945, Building 9201-4 (Alpha-4) was originally used to house a uranium isotope separation process based on electromagnetic separation technology. With the startup of the Oak Ridge K-25 Site gaseous diffusion plant In 1947, Alpha-4 was placed on standby. In 1953, the uranium enrichment process was removed, and installation of equipment for the Colex process began. The Colex process--which uses a mercury solvent and lithium hydroxide as the lithium feed material-was shut down in 1962 and drained of process materials. Residual Quantities of mercury and lithium hydroxide have remained in the process equipment. Alpha-4 contains more than one-half million ft{sup 2} of floor area; 15,000 tons of process and electrical equipment; and 23,000 tons of insulation, mortar, brick, flooring, handrails, ducts, utilities, burnables, and sludge. Because much of this equipment and construction material is contaminated with elemental mercury, cleanup is necessary. The goal of the Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4 is to provide a planning document that relates decontamination and decommissioning and waste management problems at the Alpha-4 building to the technologies that can be used to remediate these problems. The Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4 builds on the methodology transferred by the U.S. Air Force to the Environmental Management organization with DOE and draws from previous technology logic diagram-efforts: logic diagrams for Hanford, the K-25 Site, and ORNL.

NONE

1994-09-01T23:59:59.000Z

306

High Speed Particle Image Velocimetry Overview  

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

Speed Particle Image Velocimetry Speed Particle Image Velocimetry Overview The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing U.S. Non- provisional Patent Application 12/765,317 entitled "Method of Particle Trajectory Recognition in Particle Flows of High Particle Concentration Using a Candidate Trajectory Tree Process with Variable Search Areas." This patent application discloses a novel method to simultaneously track the motion of high numbers of object images under extreme, high concen- tration conditions. Although the software is designed to simultaneously track large numbers of particle images in flow fields, it can track any type of object whose locations are available at consecutive time increments (e.g.,

307

COMBINED EFFECTS OF BINARIES AND STELLAR ROTATION ON THE COLOR-MAGNITUDE DIAGRAMS OF INTERMEDIATE-AGE STAR CLUSTERS  

SciTech Connect

About 70% of intermediate-age star clusters in the Large Magellanic Clouds have been confirmed to have broad main sequence, multiple or extended turnoffs, and dual red giant clumps. The observed result seems to be at odds with the classical idea that such clusters are simple stellar populations. Although many models have been used to explain the results via factors such as prolonged star formation history, metallicity spread, differential reddening, selection effect, observational uncertainty, stellar rotation, and binary interaction, the reason for the special color-magnitude diagrams is still uncertain. We revisit this question via the combination of stellar rotation and binary effects. As a result, it shows 'golf club' color-magnitude diagrams with broad or multiple turnoffs, dual red clumps, blue stragglers, red stragglers, and extended main sequences. Because both binaries and massive rotators are common, our result suggests that most color-magnitude diagrams, including extended turnoff or multiple turnoffs, can be explained using simple stellar populations including both binary and stellar rotation effects, or composite populations with two components.

Li Zhongmu; Mao Caiyan; Chen Li; Zhang Qian, E-mail: zhongmu.li@gmail.com [Institute for Astronomy and History of Science and Technology, Dali University, Dali 671003 (China)

2012-12-20T23:59:59.000Z

308

Imaging bolometer  

DOE Patents (OSTI)

Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

Wurden, Glen A. (Los Alamos, NM)

1999-01-01T23:59:59.000Z

309

Imaging bolometer  

DOE Patents (OSTI)

Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

Wurden, G.A.

1999-01-19T23:59:59.000Z

310

Imaging system for cardiac planar imaging using a dedicated dual-head gamma camera  

SciTech Connect

A cardiac imaging system employing dual gamma imaging heads co-registered with one another to provide two dynamic simultaneous views of the heart sector of a patient torso. A first gamma imaging head is positioned in a first orientation with respect to the heart sector and a second gamma imaging head is positioned in a second orientation with respect to the heart sector. An adjustment arrangement is capable of adjusting the distance between the separate imaging heads and the angle between the heads. With the angle between the imaging heads set to 180 degrees and operating in a range of 140-159 keV and at a rate of up to 500kHz, the imaging heads are co-registered to produce simultaneous dynamic recording of two stereotactic views of the heart. The use of co-registered imaging heads maximizes the uniformity of detection sensitivity of blood flow in and around the heart over the whole heart volume and minimizes radiation absorption effects. A normalization/image fusion technique is implemented pixel-by-corresponding pixel to increase signal for any cardiac region viewed in two images obtained from the two opposed detector heads for the same time bin. The imaging system is capable of producing enhanced first pass studies, bloodpool studies including planar, gated and non-gated EKG studies, planar EKG perfusion studies, and planar hot spot imaging.

Majewski, Stanislaw (Morgantown, VA); Umeno, Marc M. (Woodinville, WA)

2011-09-13T23:59:59.000Z

311

Solids mass flow determination  

DOE Patents (OSTI)

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

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

1981-01-01T23:59:59.000Z

312

Turbulent flow in graphene  

E-Print Network (OSTI)

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

Kumar S. Gupta; Siddhartha Sen

2009-11-03T23:59:59.000Z

313

Multiple sort flow cytometer  

DOE Patents (OSTI)

A flow cytometer utilizes multiple lasers for excitation and respective fluorescence of identified dyes bonded to specific cells or events to identify and verify multiple events to be sorted from a sheath flow and droplet stream. Once identified, verified and timed in the sheath flow, each event is independently tagged upon separation from the flow by an electrical charge of +60, +120, or +180 volts and passed through oppositely charged deflection plates with ground planes to yield a focused six way deflection of at least six events in a narrow plane.

Van den Engh, Ger (Seattle, WA); Esposito, Richard J. (Seattle, WA)

1996-01-01T23:59:59.000Z

314

Droplet Laden Flow Data  

Science Conference Proceedings (OSTI)

... Flow Past a Heated Cylinder, Atomization and Sprays, 2006, 16(6 ... Numerical Modeling and Experimental Measurements of Water Spray Impact and ...

2013-07-15T23:59:59.000Z

315

Black String Flow  

E-Print Network (OSTI)

We give an exact description of the steady flow of a black string into a planar horizon. The event horizon is out of equilibrium and provides a simple, exact instance of a `flowing black funnel' in any dimension D>=5. It is also an approximation to a smooth intersection between a black string and a black hole, in the limit in which the black hole is much larger than the black string thickness. The construction extends easily to more general flows, in particular charged flows.

Emparan, Roberto

2013-01-01T23:59:59.000Z

316

Visualization of Fluid Flow  

Science Conference Proceedings (OSTI)

... Goujon and J. Devaney, Large Scale Simulations of Single and Multi- Component Flow in Porous Media in Proceedings of SPIE: The International ...

2010-12-15T23:59:59.000Z

317

A course in flow visualization: The art and physics of fluid flow  

E-Print Network (OSTI)

In Spring 2003, a new experimental course on flow visualization was offered to a mixed class of Fine Arts Photography and Engineering students. Course content included fluid flow physics, history of photography with respect to the relationship of science and art, as well as flow visualization and photography techniques. Issues such as What makes an image art? What makes an image scientific? were addressed. The class focused on studio/laboratory experiences for mixed teams of students. A range of fluids apparatus were made available, and students also created novel flows. Writeups were required for each image (to the art students shock). Student work was evaluated for both artistic and scientific merit. This course represents a radical departure from normal engineering curricula; typically all fine arts studio courses are specifically excluded. However, the course proved to be very successful in attracting both graduate and undergraduate students, engineering women in particular. One outcome of the course is the recognition by students of the beauty of fluid physics that surrounds us each day, leading to motivation for life-long learning.

Jean Hertzberg; Alex Sweetman

2004-01-01T23:59:59.000Z

318

Hubble diagrams of soft and hard radiation sources in the graviton background: to an apparent contradiction between supernova 1a and gamma-ray burst observations  

E-Print Network (OSTI)

In the sea of super-strong interacting gravitons, non-forehead collisions with gravitons deflect photons, and this deflection may differ for soft and hard radiations. As a result, the Hubble diagram would not be a universal function and it will have a different view for such sources as supernovae in visible light and gamma-ray bursts. Observations of these two kinds are compared here with the limit cases of the Hubble diagram.

Michael A. Ivanov

2006-09-19T23:59:59.000Z

319

Argonne Chemical Sciences & Engineering - Fundamental Interactions Images  

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

Fundamental Interactions Images Fundamental Interactions Images These images may be used freely as long as they are accompanied by a statement that they were used "Courtesy of Argonne National Laboratory" (see disclaimer). To download a larger or high-resolution version of each picture, right-click on the "Download high-resolution image" text beneath the picture and select "Save Link/Image As..." from the resulting pop-up menu. Shock Tube with Joe Michael and Raghu Sivaramakrishnan Joe Michael (left) and Raghu Sivaramakrishnan stand in front of a shock tube developed for the study of the kinetics of chemical reactions at the high temperatures relevant for combusion. Download high resolution image. Thermochemical subnetwork diagram Shown is a thermochemical subnetwork relevant to the determination of the heat of formation of the OH radical. Vertices of the graph indicate thermochemical quantities, such as the heats of formation, while the lines of the graph represent the measurements connecting these quantities for different species. The Active Tables approach developed by Branko Ruscic at Argonne simultaneously optimizes the thermochemical quantities for all species in the graph, taking into account all of the existing experimental and theoretical results, and weighting them by their uncertainties. Download high resolution image.

320

Capabilities for information flow  

Science Conference Proceedings (OSTI)

This paper presents a capability-based mechanism for permissive yet secure enforcement of information-flow policies. Language capabilities have been studied widely, and several popular implementations, such as Caja and Joe-E, are available. By making ... Keywords: capabilities, information flow control

Arnar Birgisson; Alejandro Russo; Andrei Sabelfeld

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Elbow mass flow meter  

DOE Patents (OSTI)

The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity. 3 figs.

McFarland, A.R.; Rodgers, J.C.; Ortiz, C.A.; Nelson, D.C.

1994-08-16T23:59:59.000Z

322

How parameters and regularization affect the Polyakov-Nambu-Jona-Lasinio model phase diagram and thermodynamic quantities  

SciTech Connect

We explore the phase diagram and the critical behavior of QCD thermodynamic quantities in the context of the so-called Polyakov-Nambu-Jona-Lasinio model. We show that this improved field theoretical model is a successful candidate for studying the equation of state and the critical behavior around the critical endpoint. We argue that a convenient choice of the model parameters is crucial to get the correct description of isentropic trajectories. The effects of the regularization procedure in several thermodynamic quantities is also analyzed. The results are compared with simple thermodynamic expectations and lattice data.

Costa, P. [Centro de Fisica Computacional, Departamento de Fisica, Universidade de Coimbra, P-3004-516 Coimbra (Portugal) and E.S.T.G., Instituto Politecnico de Leiria, Morro do Lena-Alto do Vieiro, 2411-901 Leiria (Portugal); Hansen, H. [IPNL, Universite de Lyon/Universite Lyon 1, CNRS/IN2P3, 4 rue E.Fermi, F-69622 Villeurbanne Cedex (France); Ruivo, M. C.; Sousa, C. A. de [Centro de Fisica Computacional, Departamento de Fisica, Universidade de Coimbra, P-3004-516 Coimbra (Portugal)

2010-01-01T23:59:59.000Z

323

Star-Like Micelles with Star-Like Interactions: A quantitative Evaluation of Structure Factor and Phase Diagram  

E-Print Network (OSTI)

PEP-PEO block copolymer micelles offer the possibility to investigate phase behaviour and interactions of star polymers (ultra-soft colloids). A star-like architecture is achieved by an extremely asymmetric block ratio (1:20). Micellar functionality f can be smoothly varied by changing solvent composition (interfacial tension). Structure factors obtained by SANS can be quantitatively described in terms of an effective potential developed for star polymers. The experimental phase diagram reproduces to a high level of accuracy the predicted liquid/solid transition. Whereas for intermediate f a bcc phase is observed, for high f the formation of a fcc phase is preempted by glass formation.

M. Laurati; J. Stellbrink; R. Lund; L. Willner; D. Richter; E. Zaccarelli

2005-05-04T23:59:59.000Z

324

Heat flow of Oregon  

DOE Green Energy (OSTI)

An extensive new heat flow and geothermal gradient data set for the State of Oregon is presented on a contour map of heat flow at a scale of 1:1,000,000 and is summarized in several figures and tables. The 1:1,000,000 scale heat flow map is contoured at 20 mW/m/sup 2/ (0.5 HFU) intervals. Also presented are maps of heat flow and temperature at a depth of 1 km averaged for 1/sup 0/ x 1/sup 0/ intervals. Histograms and averages of geothermal gradient and heat flow for the State of Oregon and for the various physiographic provinces within Oregon are also included. The unweighted mean flow for Oregon is 81.3 +- 2.7 mW/m/sup 2/ (1.94 +- 0.06 HFU). The average unweighted geothermal gradient is 65.3 +- 2.5/sup 0/C/km. The average heat flow value weighted on the basis of geographic area is 68 +- 5 mW/m/sup 2/ (1.63 +- 0.12 HFU) and the average weighted geothermal gradient is 55.0 +- 5/sup 0/C/km.

Blackwell, D.D.; Hull, D.A.; Bowen, R.G.; Steele, J.L.

1978-01-01T23:59:59.000Z

325

Multiphase Flow Modeling Research  

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

Science Science Chris Guenther, Director Computational Science Division RUA Spring Meeting, Morgantown, WV March 2013 2 NETL's Multiphase Flow Science Team * The Multiphase Flow Science Team develops physics-based simulation models to conduct applied scientific research. - Development of new theory - Extensive on-site and collaborative V&V efforts and testing - Engages in technology transfer - Applies the models to industrial scale problems. 3 Why is Multiphase Flow Science Needed? * Industry is increasingly relying on multiphase technologies to produce clean and affordable energy with carbon capture. * Unfortunately, the presence of a solid phase reduces the operating capacity of a typical energy device from its original design on average by 40% [1].

326

Shroud leakage flow discouragers  

SciTech Connect

A turbine assembly includes a plurality of rotor blades comprising a root portion, an airfoil having a pressure sidewall and a suction sidewall, and a top portion having a cap. An outer shroud is concentrically disposed about said rotor blades, said shroud in combination with said tip portions defining a clearance gap. At least one circumferential shroud leakage discourager is disposed within the shroud. The leakage discourager(s) increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the clearance gap to improve overall turbine efficiency.

Bailey, Jeremy Clyde (Middle Grove, NY); Bunker, Ronald Scott (Niskayuna, NY)

2002-01-01T23:59:59.000Z

327

Time-of-flight flow imaging using NMR remote detection  

E-Print Network (OSTI)

line is a ?t of the dispersion of the gas inside the rock asxenon gas provides a unique opportunity to study dispersiongas or liquid phases with varying pressures or ?ow rates, di?erent regimes of dispersion

2005-01-01T23:59:59.000Z

328

Synthetic aperture imaging for three dimensional resolution of fluid flows  

E-Print Network (OSTI)

Fluid mechanics and instrumentation have a long history together, as experimental fluids studies play an important role in describing a more complete physical picture in a variety of problems. Presently. state-of-the-art ...

Belden, Jesse (Jesse Levi)

2011-01-01T23:59:59.000Z

329

Single quantum dot (QD) imaging of fluid flow near surfaces  

Science Conference Proceedings (OSTI)

water-soluble (CdSe)ZnS QDs with a core size of 6 nm within a region of order 100 nm of a surface . Results are presented for the two in-plane components of...

330

FM DANTE fast imaging and variations: emerging rf-based ultrafast imaging techniques  

Science Conference Proceedings (OSTI)

Keywords: DANTE fast imaging, NMR, burst imaging, fast chemical shift imaging, fast imaging, fast spectroscopic imaging, fast susceptibility imaging

Z. H. Cho; Y. M. Ro; I. K. Hong

1998-01-01T23:59:59.000Z

331

Phase Diagram of Amorphous Solid Water: Low-Density, High-Density, and Very-High-Density Amorphous Ices  

E-Print Network (OSTI)

We describe the phase diagram of amorphous solid water by performing molecular dynamics simulations. Our simulations follow different paths in the phase diagram: isothermal compression/decompression, isochoric cooling/heating and isobaric cooling/heating. We are able to identify low-density amorphous (LDA), high-density amorphous (HDA), and very-high density amorphous (VHDA) ices. The density $\\rho$ of these glasses at different pressure $P$ and temperature $T$ agree well with experimental values. We also study the radial distribution functions of glassy water. We obtain VHDA by isobaric heating of HDA, as in experiment. We also find that ``other forms'' of glassy water can be obtained upon isobaric heating of LDA, as well as amorphous ices formed during the transformation of LDA to HDA. We argue that these other forms of amorphous ices, as well as VHDA, are not altogether new glasses but rather are the result of aging induced by heating. Samples of HDA and VHDA with different densities are recovered at normal $P$, showing that there is a continuum of glasses. Furthermore, the two ranges of densities of recovered HDA and recovered VHDA overlap at ambient $P$. Our simulations are consistent with the possibility of HDA$\\to$LDA and VHDA$\\to$LDA transformations, reproducing the experimental findings. We do not observe a VHDA$\\to$HDA transformation.

Nicolas Giovambattista; H. Eugene Stanley; Francesco Sciortino

2005-02-22T23:59:59.000Z

332

Split image optical display  

DOE Patents (OSTI)

A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to collectively form the image. Depth of the display is correspondingly reduced.

Veligdan, James T. (Manorville, NY)

2007-05-29T23:59:59.000Z

333

RMOTC - Testing - Flow Assurance  

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

Flow Assurance Flow Assurance RMOTC Flow Loop Facility Layout Notice: As of July 15th 2013, the Department of Energy announced the intent to sell Naval Petroleum Reserve Number 3 (NPR3). The sale of NPR-3 will also include the sale of all equipment and materials onsite. A decision has been made by the Department of Energy to complete testing at RMOTC by July 1st, 2014. RMOTC will complete testing in the coming year with the currently scheduled testing partners. For more information on the sale of NPR-3 and sale of RMOTC equipment and materials please join our mailing list here. Over a decade ago, RMOTC began cooperatively building a full-scale facility to test new flow assurance technology, mainly in the areas of hydrates and paraffins. Today, RMOTC's test facility consists of five individual loop

334

Maple Sap Flow  

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

I know a little about this topic even though I am from Illinois which is far from the heart of maple syrup country. Sap flows from a maple tree by internal pressure caused by the...

335

Modons in Shear Flow  

Science Conference Proceedings (OSTI)

Modons in shear flow are computed as equilibrium solutions of the equivalent barotropic vorticity equation using a numerical NewtonKantorovich iterative technique with double Fourier spectral expansion. The model is given a first guess of an ...

Sue Ellen Haupt; James C. McWilliams; Joseph J. Tribbia

1993-05-01T23:59:59.000Z

336

Stochastically scalable flow control  

Science Conference Proceedings (OSTI)

Recent advances in the mathematical analysis of flow control have prompted the creation of the Scalable TCP (STCP) and Exponential RED (E-RED) algorithms. These are designed to be scalable under the popular deterministic delay ...

Thomas Voice

2009-10-01T23:59:59.000Z

337

RG flows and instantons  

Science Conference Proceedings (OSTI)

In these two lectures I discuss RG flow solutions in (1,0) six dimensional supergravity involving SU(2) Yang-Mills instantons. in the conformally flat part of the 6D metric. The solutions interpolate between two (4,0) supersymmetric AdS{sub 3} Multiplication-Sign S{sup 3} backgrounds with different values of AdS{sub 3} and S{sup 3} radii and describe RG flows in the dual 2D SCFT. The flows described are of v.e.v. type, driven by a vacuum expectation value of a (not exactly) marginal operator of dimension 2 in the UV. We give an interpretation of the supergravity solution in terms of the D1/D5 system in type I string theory on K3, whose effective field theory is expected to flow to a (4,0) SCFT in the infrared.

Gava, Edi [INFN, Trieste (Italy)

2012-09-24T23:59:59.000Z

338

Parallel flow diffusion battery  

DOE Patents (OSTI)

A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

Yeh, Hsu-Chi (Albuquerque, NM); Cheng, Yung-Sung (Albuquerque, NM)

1984-08-07T23:59:59.000Z

339

Islands in Zonal Flow  

Science Conference Proceedings (OSTI)

The impact of a meridional gradient in sea surface temperature (warm toward the equator, cold toward the pole) on the circulation around an island is investigated. The upper-ocean eastward geostrophic flow that balances such a meridional gradient ...

Michael A. Spall

2003-12-01T23:59:59.000Z

340

Parallel flow diffusion battery  

DOE Patents (OSTI)

A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

Yeh, H.C.; Cheng, Y.S.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Three dimensional flow processor  

DOE Patents (OSTI)

The 3D-flow processor is a general purpose programmable data stream pipelined device that allows fast data movement in six directions for digital signal processing applications such as identifying objects in a matrix in a programmable form. The 3D-flow processor can be used in one dimensional, two dimensional, and three dimensional topologies capable of sustaining an input data rate of up to 100 million data (or frames) per second in a parallel processing system.

Crosetto, D.B.

1992-01-01T23:59:59.000Z

342

Increased Power Flow Guidebook  

Science Conference Proceedings (OSTI)

The Increased Power Flow (IPF) Guidebook is a state-of-the-art and best practices guidebook on increasing power flow capacities of existing overhead transmission lines, underground cables, power transformers, and substation equipment without compromising safety and reliability. The Guidebook discusses power system concerns and limiting conditions to increasing capacity, reviews available technology options and methods, illustrates alternatives with case studies, and analyzes costs and benefits of differe...

2005-11-16T23:59:59.000Z

343

Advanced Flow-Battery Systems  

Science Conference Proceedings (OSTI)

Presentation Title, Advanced Flow-Battery Systems ... Abstract Scope, Flow- battery systems (FBS) were originally developed over 30 years ago and have since...

344

Fluid Metrology Calibration Services - Water Flow  

Science Conference Proceedings (OSTI)

Fluid Metrology Calibration Services - Water Flow. Water Flow Calibrations 18020C. ... NIST provides calibration services for water flow meters. ...

2011-10-03T23:59:59.000Z

345

Meridional Flow Field of Axisymmetric Flows in a Rotating Annulus  

Science Conference Proceedings (OSTI)

Measurements of the flow field were made of the axisymmetric flow in a differentially heated rotating fluid annulus by using a long-term tracking of a tracer particle. Its meridional flow profile is composed of a flow circulating in a large ...

T. Tajima; T. Nakamura

2000-09-01T23:59:59.000Z

346

Multicolor Underwater Imaging Techniques.  

E-Print Network (OSTI)

??Studies were conducted on multispectral polarimetric subtraction imaging techniques for underwater imaging that use a broadband light source. The main objective of this study was (more)

Waggoner, Douglas Scott

2007-01-01T23:59:59.000Z

347

Recent Advances in Laser-based Diagnostics for Gaseous Flows  

Science Conference Proceedings (OSTI)

Laser-based diagnostic techniques offer unique capabilities for experimentation on gaseous flows. In this paper, we overview recent progress of two concepts: spectrally resolved absorption and planar laser-induced fluorescence (PLIF) imaging. The absorption ... Keywords: PLIF, absorption spectroscopy, acetone, combustion control, diode laser, hypersonic, supersonic

R. Hanson; D. Baer; C. Morris; M. Thurber; E. Furlong; S. Wehe

1999-12-01T23:59:59.000Z

348

Growth diagram of La0.7Sr0.3MnO3 thin films using pulsed laser deposition  

Science Conference Proceedings (OSTI)

An experimental study was conducted on controlling the growth mode of La0.7Sr0.3MnO3 thin films on SrTiO3 substrates using pulsed laser deposition by tuning growth temperature, pressure and laser fluence. Different thin film morphology, crystallinity and stoichiometry have been observed depending on growth parameters. To understand the microscopic origin, the adatom nucleation, step advance processes and their relationship to film growth were theoretically analyzed and a growth diagram was constructed. Three boundaries between highly and poorly crystallized growth, layer-by-layer and 3D growth, stoichiometric and non-stoichiometric growth were identified in the growth diagram. A good fit of our experimental observation with the growth diagram was found. This case study demonstrates that a more comprehensive understanding and the predicting of the growth mode in PLD is possible.

Guo, Hangwen [ORNL; Sun, Da-Li [ORNL; Wang, Wenbin [ORNL; Gai, Zheng [ORNL; Kravchenko, Ivan I [ORNL; Shao, Jian [Fudan University, China; Jiang, Lu [ORNL; Ward, Thomas Z [ORNL; Snijders, Paul C [ORNL; Yin, Lifeng [ORNL; Shen, Jian [Fudan University, China; Xu, Xiaoshan [ORNL

2013-01-01T23:59:59.000Z

349

Formation flow channel blocking  

SciTech Connect

A method is claimed for selectively blocking high permeability flow channels in an underground hydrocarbon material bearing formation having flow channels of high permeability and having flow channels of lesser permeability. The method includes the following steps: introducing a blocking material fluid comprising a blocking material in a carrier into the flow channels through an injection well in communication with the formation; introducing a buffer fluid into the formation through the injection well for the buffer fluid to displace the blocking material fluid away from the injection well; allowing the blocking material to settle in the channels to resist displacement by fluid flowing through the channels; introducing a quantity of an activating fluid into the channels through the injection well at a sufficient rate for the activating fluid to displace the buffer fluid and finger into the high permeability channels to reach the blocking material in the high permeability channels without reaching the blocking material in the low permeability channels, the activating fluid being adapted to activate the blocking material which it reaches to cause blocking of the high permeability channels.

Kalina, A.I.

1982-11-30T23:59:59.000Z

350

Preparing Red-Green-Blue (RGB) Images from CCD Data  

E-Print Network (OSTI)

We present a new, and we believe arguably correct, algorithm for producing Red-Green-Blue (RBG) composites from 3-band astronomical images. Our method ensures that an object with a specified astronomical color (e.g. g-r and r-i) has a unique color in the RGB image, as opposed to the burnt-out white stars to which we are accustomed. A natural consequence of this is that we can use the same colors to code color-magnitude diagrams, providing a natural `index' to our images. We also introduce the use of an asinh stretch, which allows us to show faint objects while simultaneously preserving the structure of brighter objects in the field, such as the spiral arms of large galaxies. We believe that, in addition to their aesthetic value, our images convey far more information than do the traditional ones, and provide examples from Sloan Digital Sky Survey (SDSS) imaging, the Hubble Deep Field (HDF), and Chandra to support our claims. More examples are available at http://www.astro.princeton.edu/~rhl/PrettyPictures

Robert Lupton; Michael R. Blanton; George Fekete; David W. Hogg; Wil O'Mullane; Alex Szalay; N. Wherry

2003-12-18T23:59:59.000Z

351

Monte-Carlo and Variational Calculations of the Magnetic Phase Diagram of CuFeO2  

SciTech Connect

Monte-Carlo and variational calculations are used to revise the phase diagram of the magnetically- frustrated material CuFeO2. For fields 50 T < H < 65 T, a new spin flop phase is predicted between a canted three-sublattice phase and the conventional conical spin-flop phase. This phase has wavevector Q (0.8 , 0.43 ) and is commensurate in the x direction but incommensurate in the y direction. A canted five-sublattice phase is predicted between the multiferroic phase and either a collinear five-sublattice phase for pure CuFeO2 or a canted three-sublattice phase for Al- or Ga-doped CuFeO2.

Fishman, Randy Scott [ORNL; Brown, Gregory [Florida State University; Haraldsen, Jason T [ORNL; Haraldsen, Jason T. [Los Alamos National Laboratory (LANL)

2012-01-01T23:59:59.000Z

352

Phase diagrams in the lattice RPM model: from order-disorder to gas-liquid phase transition  

E-Print Network (OSTI)

The phase behavior of the lattice restricted primitive model (RPM) for ionic systems with additional short-range nearest neighbor (nn) repulsive interactions has been studied by grand canonical Monte Carlo simulations. We obtain a rich phase behavior as the nn strength is varied. In particular, the phase diagram is very similar to the continuum RPM model for high nn strength. Specifically, we have found both gas-liquid phase separation, with associated Ising critical point, and first-order liquid-solid transition. We discuss how the line of continuous order-disorder transitions present for the low nn strength changes into the continuum-space behavior as one increases the nn strength and compare our findings with recent theoretical results by Ciach and Stell [Phys. Rev. Lett. {\\bf 91}, 060601 (2003)].

Alexandre Diehl; Athanassios Z. Panagiotopoulos

2004-12-03T23:59:59.000Z

353

Yang-Lee Zeros of the Two- and Three-State Potts Model Defined on $?^3$ Feynman Diagrams  

E-Print Network (OSTI)

We present both analytic and numerical results on the position of the partition function zeros on the complex magnetic field plane of the $q=2$ (Ising) and $q=3$ states Potts model defined on $\\phi^3 $ Feynman diagrams (thin random graphs). Our analytic results are based on the ideas of destructive interference of coexisting phases and low temperature expansions. For the case of the Ising model an argument based on a symmetry of the saddle point equations leads us to a nonperturbative proof that the Yang-Lee zeros are located on the unit circle, although no circle theorem is known in this case of random graphs. For the $q=3$ states Potts model our perturbative results indicate that the Yang-Lee zeros lie outside the unit circle. Both analytic results are confirmed by finite lattice numerical calculations.

Luiz C. de Albuquerque; D. Dalmazi

2002-06-25T23:59:59.000Z

354

Y-12 Plant remedial action Technology Logic Diagram: Volume 3, Technology evaluation data sheets: Part A, Remedial action  

SciTech Connect

The Y-12 Plant Remedial Action Technology Logic Diagram (TLD) was developed to provide a decision-support tool that relates environmental restoration (ER) problems at the Y-12 Plant to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to remedial action (RA) activities. The TLD consists of three volumes. Volume 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the rankings of remedial technologies. Volume 2 contains the logic linkages among environmental management goals, environmental problems and the various technologies that have the potential to solve these problems. Volume 3 contains the TLD data sheets. This report is Part A of Volume 3 and contains the Remedial Action section.

1994-09-01T23:59:59.000Z

355

Y-12 Plant remedial action Technology Logic Diagram: Volume 3, Technology evaluation data sheets: Part B, Characterization; robotics/automation  

SciTech Connect

The Y-12 Plant Remedial Action Technology Logic Diagram (TLD) was developed to provide a decision-support tool that relates environmental restoration (ER) problems at the Y-12 Plant to potential technologies that can remediate theses problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to remedial action (RA) activities. The TLD consists of three volumes. Volume 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the rankings of remedial technologies. Volume 2 contains the logic linkages among environmental management goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 contains the TLD data sheets. This report is Part B of Volume 3 and contains the Characterization and Robotics/Automation sections.

NONE

1994-09-01T23:59:59.000Z

356

Structure function of the nucleus in the perturbative QCD with $N_c\\to\\infty$ (BFKL pomeron fan diagrams)  

E-Print Network (OSTI)

Equation for the sum of BFKL pomeron fan diagrams is rederived by direct summation and solved numerically for rapidities $y\\leq 50$. At high rapidities y>20 the resulting cross-sections for the scattering of a longitudinally polarized $q\\bar q$ pair on the nucleus cease to depend on its transverse dimension and tend to a constant limit 0.1768 $R_A^2$, which corresponds to scattering of a colour dipole on a black disk. Thus the unitarity is restored and the singularity in the j plane is reduced to a simple pole at j=1.The nuclear structure function at small x behaves as $Q^2\\ln(1/x)$. The found gluon density has a soliton-like form in the $\\log k$ space: its form is close to Gaussian, independent of rapidity, the centermoving towards higher $\\log k$ with a nearly constant velocity as rapidity increases.

M. A. Braun

2000-01-26T23:59:59.000Z

357

Two-phase flow studies  

DOE Green Energy (OSTI)

The two-phase flow program is directed at understanding the hydrodynamics of two-phase flows. The two-phase flow regime is characterized by a series of flow patterns that are designated as bubble, slug, churn, and annular flow. Churn flow has received very little scientific attention. This lack of attention cannot be justified because calculations predict that the churn flow pattern will exist over a substantial portion of the two-phase flow zone in producing geothermal wells. The University of Houston is experimentally investigating the dynamics of churn flow and is measuring the holdup over the full range of flow space for which churn flow exists. These experiments are being conducted in an air/water vertical two-phase flow loop. Brown University has constructed and is operating a unique two-phase flow research facility specifically designed to address flow problems of relevance to the geothermal industry. An important feature of the facility is that it is dedicated to two-phase flow of a single substance (including evaporation and condensation) as opposed to the case of a two-component two-phase flow. This facility can be operated with horizontal or vertical test sections of constant diameter or with step changes in diameter to simulate a geothermal well profile.

Hanold, R.J.

1983-12-01T23:59:59.000Z

358

The influence of strange quarks on QCD phase diagram and chemical freeze-out: Results from the hadron resonance gas model  

E-Print Network (OSTI)

We confront the lattice results on QCD phase diagram for two and three flavors with the hadron resonance gas model. Taking into account the truncations in the Taylor-expansion of energy density $\\epsilon$ done on the lattice at finite chemical potential $\\mu$, we find that the hadron resonance gas model under the condition of constant $\\epsilon$ describes very well the lattice phase diagram. We also calculate the chemical freeze-out curve according to the entropy density $s$. The $s$-values are taken from lattice QCD simulations with two and three flavors. We find that this condition is excellent in reproducing the experimentally estimated parameters of the chemical freeze-out.

A. Tawfik

2004-10-25T23:59:59.000Z

359

Phase diagram of Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2}.  

Science Conference Proceedings (OSTI)

We report the results of a systematic investigation of the phase diagram of the iron-based superconductor Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2} from x = 0 to x = 1.0 using high-resolution neutron and x-ray diffraction and magnetization measurements. The polycrystalline samples were prepared with an estimated compositional variation of {Delta}x {le} 0.01, allowing a more precise estimate of the phase boundaries than reported so far. At room temperature, Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2} crystallizes in a tetragonal structure with the space group symmetry of I4/mmm, but at low doping, the samples undergo a coincident first-order structural and magnetic phase transition to an orthorhombic (O) structure with the space group Fmmm and a striped antiferromagnet (AF) with the space group F{sub c}mm'm'. The transition temperature falls from a maximum of 139 K in the undoped compound to 0 K at x = 0.252, with a critical exponent as a function of doping of 0.25(2) and 0.12(1) for the structural and magnetic order parameters, respectively. The onset of superconductivity occurs at a critical concentration of x = 0.130(3), and the superconducting transition temperature grows linearly with x until it crosses the AF/O phase boundary. Below this concentration, there is microscopic phase coexistence of the AF/O and superconducting order parameters, although a slight suppression of the AF/O order is evidence that the phases are competing. At higher doping, superconductivity has a maximum T{sub c} of 38 K at x = 0.4 that falls to 3 K at x = 1.0. We discuss reasons for the suppression of the spin density wave order and the electron-hole asymmetry in the phase diagram.

Avci, S.; Chmaissem, O.; Chung, D. Y.; Rosenkranz, S.; Goremychkin, E. A.; Castellan, J. P.; Todorov, I. S.; Schlueter, J. A.; Claus, H.; Daoud-Aladine, A.; Khalyavin, D. D.; Kanatzidis, M. G.; Osborn, R. (Materials Science Division); (Northern Illinois Univ.); (Rutherford Appleton Lab.); (Northwestern Univ.)

2012-01-01T23:59:59.000Z

360

Idaho National Engineering Laboratory Waste Area Groups 1-7 and 10 Technology Logic Diagram. Volume 2  

Science Conference Proceedings (OSTI)

The Idaho National Engineering Laboratory (INEL) Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates Environmental Restoration (ER) and Waste Management (WM) problems at the INEL to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to an environmental restoration need. It is essential that follow-on engineering and system studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in this TLD and finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk to meet the site windows of opportunity. The TLD consists of three separate volumes: Volume I includes the purpose and scope of the TLD, a brief history of the INEL Waste Area Groups, and environmental problems they represent. A description of the TLD, definitions of terms, a description of the technology evaluation process, and a summary of each subelement, is presented. Volume II (this volume) describes the overall layout and development of the TLD in logic diagram format. This section addresses the environmental restoration of contaminated INEL sites. Specific INEL problem areas/contaminants are identified along with technology solutions, the status of the technologies, precise science and technology needs, and implementation requirements. Volume III provides the Technology Evaluation Data Sheets (TEDS) for Environmental Restoration and Waste Management (EM) activities that are referenced by a TEDS codenumber in Volume II. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than provided for technologies in Volume II.

O`Brien, M.C.; Meservey, R.H.; Little, M.; Ferguson, J.S.; Gilmore, M.C.

1993-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Oak Ridge National Laboratory Technology Logic Diagram. Volume 3, Technology evaluation data sheets: Part B, Dismantlement, Remedial action  

Science Conference Proceedings (OSTI)

The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1, Technology Evaluation; Vol. 2, Technology Logic Diagram and Vol. 3, Technology EvaLuation Data Sheets. Part A of Vols. 1 and 2 focuses on RA. Part B of Vols. 1 and 2 focuses on the D&D of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TM, an explanation of the problems facing the volume-specific program, a review of identified technologies, and rankings of technologies applicable to the site. Volume 2 (Pts. A. B. and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A. B, and C) contains the TLD data sheets. This volume provides the technology evaluation data sheets (TEDS) for ER/WM activities (D&D, RA and WM) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than is given for the technologies in Vol. 2.

Not Available

1993-09-01T23:59:59.000Z

362

Oak Ridge National Laboratory Technology Logic Diagram. Volume 3, Technology evaluation data sheets: Part C, Robotics/automation, Waste management  

Science Conference Proceedings (OSTI)

The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1, Technology Evaluation; Vol. 2, Technology Logic Diagram and Vol. 3, Technology EvaLuation Data Sheets. Part A of Vols. 1 and 2 focuses on RA. Part B of Vols. 1 and 2 focuses on the D&D of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TM, an explanation of the problems facing the volume-specific program, a review of identified technologies, and rankings of technologies applicable to the site. Volume 2 (Pts. A. B. and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A. B, and C) contains the TLD data sheets. This volume provides the technology evaluation data sheets (TEDS) for ER/WM activities (D&D, RA and WM) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than is given for the technologies in Vol. 2.

Not Available

1993-09-01T23:59:59.000Z

363

Idaho National Engineering Laboratory Waste Area Groups 1-7 and 10 Technology Logic Diagram. Volume 3  

Science Conference Proceedings (OSTI)

The Idaho National Engineering Laboratory (INEL) Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates Environmental Restoration (ER) and Waste Management (WM) problems at the INEL to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to an environmental restoration need. It is essential that follow-on engineering and system studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in this TLD and finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk to meet the site windows of opportunity. The TLD consists of three separate volumes: Volume I includes the purpose and scope of the TLD, a brief history of the INEL Waste Area Groups, and environmental problems they represent. A description of the TLD, definitions of terms, a description of the technology evaluation process, and a summary of each subelement, is presented. Volume II describes the overall layout and development of the TLD in logic diagram format. This section addresses the environmental restoration of contaminated INEL sites. Volume III (this volume) provides the Technology Evaluation Data Sheets (TEDS) for Environmental Restoration and Waste Management (EM) activities that are reference by a TEDS code number in Volume II. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than provided for technologies in Volume II. Data sheets are arranged alphanumerically by the TEDS code number in the upper right corner of each sheet.

O`Brien, M.C.; Meservey, R.H.; Little, M.; Ferguson, J.S.; Gilmore, M.C.

1993-09-01T23:59:59.000Z

364

Microwave fluid flow meter  

DOE Patents (OSTI)

A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.

Billeter, Thomas R. (Richland, WA); Philipp, Lee D. (Richland, WA); Schemmel, Richard R. (Lynchburg, VA)

1976-01-01T23:59:59.000Z

365

Flow Test | Open Energy Information  

Open Energy Info (EERE)

Flow Test Flow Test Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Flow Test Details Activities (38) Areas (33) Regions (1) NEPA(3) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Flow tests provide information on permeability, recharge rates, reservoir pressures, fluid chemistry, and scaling. Thermal: Flow tests can measure temperature variations with time to estimate characteristics about the heat source. Dictionary.png Flow Test: Flow tests are typically conducted shortly after a well has been drilled to test its productivity. The well is opened and fluids are released, the

366

Mass-Loaded Flows  

E-Print Network (OSTI)

A key process within astronomy is the exchange of mass, momentum, and energy between diffuse plasmas in many types of astronomical sources (including planetary nebulae, wind-blown bubbles, supernova remnants, starburst superwinds, and the intracluster medium) and dense, embedded clouds or clumps. This transfer affects the large scale flows of the diffuse plasmas as well as the evolution of the clumps. I review our current understanding of mass-injection processes, and examine intermediate-scale structure and the global effect of mass-loading on a flow. I then discuss mass-loading in a variety of diffuse sources.

J. M. Pittard

2006-07-13T23:59:59.000Z

367

Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry  

E-Print Network (OSTI)

Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I.Skillicorn 1 Azimuthal asymmetry using energy flow method Azimuthal angle distribution at Q2 >100 GeV2 Energy flow method.Ukleja on behalf of the ZEUS Collaboration #12; Energy Flow Energy Flow Energy Flow A.Ukleja, T.Tymieniecka, I

368

Mining partially annotated images  

Science Conference Proceedings (OSTI)

In this paper, we study the problem of mining partially annotated images. We first define what the problem of mining partially annotated images is, and argue that in many real-world applications annotated images are typically partially annotated and ... Keywords: image annotation completion and prediction, partially annotated training set, semi-supervised learning

Zhongang Qi; Ming Yang; Zhongfei (Mark) Zhang; Zhengyou Zhang

2011-08-01T23:59:59.000Z

369

Research on the Flow Pattern of Bubble Plume in an Aeration Tank  

Science Conference Proceedings (OSTI)

The flow pattern of gas?liquid two?phase flow in an aeration tank is of critical effect upon mass transfer by the convection. Bubble plume provides unsteadily fluctuating two?phase flow during the aeration. This paper the study on the unsteady structure of bubble plume is dealt with from experiment. The time?serial bubble plume images of different cases in tank have been analyzed. The RCC?PIV has been employed to calculate the velocities in those cases

W. H. Liu; T. Wan; W. Cheng; Yuichi Murai

2010-01-01T23:59:59.000Z

370

Seismic Imaging and Monitoring  

SciTech Connect

I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

Huang, Lianjie [Los Alamos National Laboratory

2012-07-09T23:59:59.000Z

371

Seismic Imaging and Monitoring  

SciTech Connect

I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

Huang, Lianjie [Los Alamos National Laboratory

2012-07-09T23:59:59.000Z

372

Manhattan Project: Trinity Images  

Office of Scientific and Technical Information (OSTI)

IMAGES IMAGES Trinity Test Site (July 16, 1945) Resources > Photo Gallery The first 0.11 seconds of the Nuclear Age These seven photographs of the Trinity test were taken by time-lapse cameras. The last is 109 milliseconds, or 0.109 seconds, after detonation. Scroll down to view each individual image. The photographs are courtesy the Los Alamos National Laboratory, via the Federation of American Scientists web site. The animation is original to the Office of History and Heritage Resources. The dawn of the Nuclear Age (Trinity image #1) The dawn of the Nuclear Age Trinity image #2 Trinity image #3 Trinity image #4 Trinity image #5 Trinity, 0.09 seconds after detonation (Trinity image #6) Trinity, 0.09 seconds after detonation Trinity, 0.11 seconds after detonation (Trinity image #7)

373

Web accessible image similarity measurements  

Science Conference Proceedings (OSTI)

Web accessible image similarity measurements. Background: There ... messages). Web Access to Image Similarity Measurements. ...

2013-04-16T23:59:59.000Z

374

Flow cytometry apparatus  

DOE Patents (OSTI)

An obstruction across the flow chamber creates a one-dimensional convergence of a sheath fluid. A passageway in the obstruction directs flat cells near to the area of one-dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates. 6 figs.

Pinkel, D.

1987-11-30T23:59:59.000Z

375

Flow cytometry apparatus  

DOE Patents (OSTI)

An obstruction across the flow chamber creates a one dimensional convergence of a sheath fluid. A passageway in the construction directs flat cells near to the area of one dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates.

Pinkel, Daniel (Walnut Creek, CA)

1991-01-01T23:59:59.000Z

376

US energy flow, 1991  

SciTech Connect

Trends in energy consumption and assessment of energy sources are discussed. Specific topics discussed include: energy flow charts; comparison of energy use with 1990 and earlier years; supply and demand of fossil fuels (oils, natural gas, coal); electrical supply and demand; and nuclear power.

Borg, I.Y.; Briggs, C.K.

1992-06-01T23:59:59.000Z

377

Forced convective flow and heat transfer of upward cocurrent air-water slug flow in vertical plain and swirl tubes  

SciTech Connect

This experimental study comparatively examined the two-phase flow structures, pressured drops and heat transfer performances for the cocurrent air-water slug flows in the vertical tubes with and without the spiky twisted tape insert. The two-phase flow structures in the plain and swirl tubes were imaged using the computerized high frame-rate videography with the Taylor bubble velocity measured. Superficial liquid Reynolds number (Re{sub L}) and air-to-water mass flow ratio (AW), which were respectively in the ranges of 4000-10000 and 0.003-0.02 were selected as the controlling parameters to specify the flow condition and derive the heat transfer correlations. Tube-wise averaged void fraction and Taylor bubble velocity were well correlated by the modified drift flux models for both plain and swirl tubes at the slug flow condition. A set of selected data obtained from the plain and swirl tubes was comparatively examined to highlight the impacts of the spiky twisted tape on the air-water interfacial structure and the pressure drop and heat transfer performances. Empirical heat transfer correlations that permitted the evaluation of individual and interdependent Re{sub L} and AW impacts on heat transfer in the developed flow regions of the plain and swirl tubes at the slug flow condition were derived. (author)

Chang, Shyy Woei [Thermal Fluids Laboratory, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143 (China); Yang, Tsun Lirng [Department of Marine Engineering, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143 (China)

2009-10-15T23:59:59.000Z

378

Image registration method for medical image sequences  

DOE Patents (OSTI)

Image registration of low contrast image sequences is provided. In one aspect, a desired region of an image is automatically segmented and only the desired region is registered. Active contours and adaptive thresholding of intensity or edge information may be used to segment the desired regions. A transform function is defined to register the segmented region, and sub-pixel information may be determined using one or more interpolation methods.

Gee, Timothy F.; Goddard, James S.

2013-03-26T23:59:59.000Z

379

Y-12 Plant decontamination and decommissioning technology logic diagram for Building 9201-4. Volume 3: Technology evaluation data sheets; Part A: Characterization, dismantlement  

Science Conference Proceedings (OSTI)

The Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4 (TLD) was developed to provide a decision-support tool that relates decontamination and decommissioning (D and D) problems at Bldg. 9201-4 to potential technologies that can remediate these problems. The TLD uses information from the Strategic Roadmap for the Oak Ridge Reservation, the Oak Ridge K-25 Site Technology Logic Diagram, the Oak Ridge National Laboratory Technology Logic Diagram, and a previous Hanford logic diagram. This TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to D and D and waste management (WM) activities. It is essential that follow-on engineering studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in the TLD and by finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk. This report consists of the characterization and dismantlement data sheets.

NONE

1994-09-01T23:59:59.000Z

380

Phase diagram of a thin film of the Fe{sub 1-x}Co{sub x} alloy with the 'bulk' or 'planar' magnetoelastic interaction  

SciTech Connect

Concentration-induced reorientation phase transitions in thin magnetic films of FeCo alloys have been investigated taking into account 'planar' or 'bulk' magnetoelastic interaction. The critical concentrations of Co corresponding to the phase transition points, as well as the types of the phase transitions, have been determined. The phase diagrams have been plotted.

Fridman, Yu. A., E-mail: frid@tnu.crimea.ua; Klevets, F. N.; Voitenko, A. P. [Vernadskii Tavricheskii National University (Ukraine)

2011-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

High Fidelity Simulation of Complex Suspension Flow for Practical Rheometry  

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

A visualization of the flow of concrete, a complex suspension A visualization of the flow of concrete, a complex suspension A visualization of the flow of concrete, a complex suspension. In this snapshot of the simulation, the stress on each suspended particle is shown color-coded with its specific value drawn on its surface. Suspended particles that have a stress value below a specific threshold value are shown in outline form in order to better view those particles that are carrying the majority of the stress in the system. This image and the software used to produce it was developed by Steven Satterfield, John Hagedorn, and John Kelso of the National Institute of Standards and Technology (NIST), and Marc Olano of NIST and the University of Maryland-Baltimore County. High Fidelity Simulation of Complex Suspension Flow for Practical Rheometry

382

Self-Organized Network Flows  

E-Print Network (OSTI)

A model for traffic flow in street networks or material flows in supply networks is presented, that takes into account the conservation of cars or materials and other significant features of traffic flows such as jam formation, spillovers, and load-dependent transportation times. Furthermore, conflicts or coordination problems of intersecting or merging flows are considered as well. Making assumptions regarding the permeability of the intersection as a function of the conflicting flows and the queue lengths, we find self-organized oscillations in the flows similar to the operation of traffic lights.

Helbing, D; Lmmer, S; Helbing, Dirk; Siegmeier, Jan; L\\"{a}mmer, Stefan

2007-01-01T23:59:59.000Z

383

Designing Axial Flow Fan for Flow and Noise  

E-Print Network (OSTI)

A comprehensive finite element methodology is developed to predict the compressible flow performance of a non-symmetric 7-blade axial flow fan, and to quantify the source strength and sound pressure levels at any location in the system. The acoustic and flow performances of the fan are predicted simultaneously using a computational aero-acoustic technique combining transient flow analysis and noise propagation. The calculated sound power levels compare favorably with the measured sound power data per AMCA 300-96 code.

Subrata Roy; Phillip Cho; Fred Pri; International Off-highway

1999-01-01T23:59:59.000Z

384

Two Phase Flow Measurements by Nuclear Magnetic Resonance (NMR)  

SciTech Connect

In concentrated suspensions, there is a tendency for the solid phase to migrate from regions of high shear rate to regions of low shear (Leighton & Acrivos, 1987). In the early years that our effort was funded by the DOE Division of Basic Energy Science, quantitative measurement of this process in neutrally buoyant suspensions was a major focus (Abbott, et al., 1991; Altobelli, et al., 1991). Much of this work was used to improve multi-phase numerical models at Sandia National Laboratories. Later, our collaborators at Sandia and the University of New Mexico incorporated body forces into their numerical models of suspension flow (Rao, Mondy, Sun, et al., 2002). We developed experiments that allow us to study flows driven by buoyancy, to characterize these flows in well-known and useful engineering terms (Altobelli and Mondy, 2002) and to begin to explore the less well-understood area of flows with multiple solid phases (Beyea, Altobelli, et al., 2003). We also studied flows that combine the effects of shear and buoyancy, and flows of suspensions made from non-Newtonian liquids (Rao, Mondy, Baer, et al, 2002). We were able to demonstrate the usefulness of proton NMR imaging of liquid phase concentration and velocity and produced quantitative data not obtainable by other methods. Fluids flowing through porous solids are important in geophysics and in chemical processing. NMR techniques have been widely used to study liquid flow in porous media. We pioneered the extension of these studies to gas flows (Koptyug, et al, 2000, 2000, 2001, 2002). This extension allows us to investigate a wider range of Peclet numbers, and to gather data on problems of interest in catalysis. We devised two kinds of NMR experiments for three-phase systems. Both experiments employ two NMR visible phases and one phase that gives no NMR signal. The earlier method depends on the two visible phases differing in a NMR relaxation property. The second method (Beyea, Altobelli, et al., 2003) uses two different nuclei, protons and 19F. It also uses two different types of NMR image formation, a conventional spin-echo and a single-point method. The single-point method is notable for being useful for imaging materials which are much more rigid than can usually be studied by NMR imaging. We use it to image low density polyethylene (LDPE) plastic in this application. We have reduced the imaging time for this three-phase imaging method to less than 10 s per pair of profiles by using new hardware. Directly measuring the solid LDPE signal was a novel feature for multi-phase flow studies. We also used thermally polarized gas NMR (as opposed to hyper-polarized gas) which produces low signal to noise ratios because gas densities are on the order of 1000 times smaller than liquid densities. However since we used multi-atom molecules that have short T1's and operated at elevated pressures we could overcome some of the losses. Thermally polarized gases have advantages over hyperpolarized gases in the ease of preparation, and in maintaining a well-defined polarization. In these studies (Codd and Altobelli, 2003), we used stimulated echo sequences to successfully obtain propagators of gas in bead packs out to observation times of 300 ms. Zarraga, et al. (2000) used laser-sheet profilometry to investigate normal stress differences in concentrated suspensions. Recently we developed an NMR imaging analog for comparison with numerical work that is being performed by Rekha Rao at Sandia National Laboratories (Rao, Mondy, Sun, et al, 2002). A neutrally buoyant suspension of 100 mm PMMA spheres in a Newtonian liquid was sheared in a vertical Couette apparatus inside the magnet. The outer cylinder rotates and the inner cylinder is fixed. At these low rotation rates, the free-surface of the Newtonian liquid shows no measurable deformation, but the suspension clearly shows its non-Newtonian character.

Altobelli, Stephen A; Fukushima, Eiichi

2006-08-14T23:59:59.000Z

385

Lattice Boltzmann modeling of microchannel flow in slip flow regime  

Science Conference Proceedings (OSTI)

We present the lattice Boltzmann equation (LBE) with multiple relaxation times (MRT) to simulate pressure-driven gaseous flow in a long microchannel. We obtain analytic solutions of the MRT-LBE with various boundary conditions for the incompressible ... Keywords: Gas flow through microchannel, Lattice Boltzmann equation with multiple relaxation times, Slip flow

Frederik Verhaeghe; Li-Shi Luo; Bart Blanpain

2009-01-01T23:59:59.000Z

386

flow_loop.indd  

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

FLOW ASSURANCE TEST LOOP FLOW ASSURANCE TEST LOOP Objective O ver a decade ago, RMOTC began cooperatively building a full-scale facility to test new fl ow assurance technology, mainly in the areas of hydrates and paraffi ns. Today, RMOTC's test facility consists of fi ve individual loop sections, including chilling and heated pipe-in-pipe water sections, bare lines, and a mixing section. The facility was designed to represent typical deepwater production systems in order to simulate full-scale tests and apply the results to fl ow assurance fi eld applications and technology. The current facility design consists of a 6" x 3,600 maximum allowable operating pressure test pipeline in fi ve separate loops. The test loops begin and ter- minate at a central location just north

387

Modeling Turbulent Flow  

National Nuclear Security Administration (NNSA)

Turbulent Turbulent Flow with Implicit LES L.G. Margolin 1 Proceedings of the Joint Russian-American Five Laboratory Conference on Computational Mathematics/Physics 19-23 June, 2005 Vienna, Austria 1 Applied Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, len@lanl.gov 1 Abstract Implicit large eddy simulation (ILES) is a methodology for modeling high Reynolds' num- ber flows that combines computational efficiency and ease of implementation with predictive calculations and flexible application. Although ILES has been used for more than fifteen years, it is only recently that significant effort has gone into providing a physical rationale that speaks to its capabilities and its limitations. In this talk, we will present new theoret- ical results aimed toward building a justification and discuss some remaining gaps in our understanding and our practical

388

Vanadium Redox Flow Batteries  

Science Conference Proceedings (OSTI)

The vanadium redox flow battery, sometimes abbreviated as VRB, is an energy storage technology with significant potential for application in a wide range of contexts. Vanadium redox batteries have already been used in a number of demonstrations in small-scale utility-scale applications, and it is believed that the technology is close to being viable for more widespread use. This report examines the vanadium redox technology, including technical performance and cost issues that drive its application today...

2007-03-30T23:59:59.000Z

389

Convective heat flow probe  

DOE Patents (OSTI)

A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

Dunn, J.C.; Hardee, H.C.; Striker, R.P.

1984-01-09T23:59:59.000Z

390

Momentum Balance of Gravity Flows  

Science Conference Proceedings (OSTI)

A unified scale analysis of the momentum balance of downslope gravity flows is developed to organize previous theories for the case of negligible ambient flow and fixed temperature deficit scale. The values of several nondimensional parameters ...

L. Mahrt

1982-12-01T23:59:59.000Z

391

HYDROLYZED WOOD SLURRY FLOW MODELING  

E-Print Network (OSTI)

LBL-10090 UC-61 HYDROLYZED WOOD SLURRY FLOW MODELING JimLBL-10090 HYDROLYZED WOOD SLURRY FLOW MODELING Jim Wrathallconversion of hydrolyzed wood slurry to fuel oil, Based on

Wrathall, Jim

2012-01-01T23:59:59.000Z

392

Katabatic Wind in Opposing Flow  

Science Conference Proceedings (OSTI)

This paper presents a one-dimensional model of katabatic winds in ambient flow and examines types of possible solutions. Results presented in dimensionless form indicate that 1) cooling along a slope with upslope ambient flow can lead to tranquil ...

David R. Fitzjarrald

1984-04-01T23:59:59.000Z

393

Waveguide detection of right-angle-scattered light in flow cytometry  

DOE Patents (OSTI)

A transparent flow cell is used as an index-guided optical waveguide. A detector for the flow cell but not the liquid stream detects the Right-Angle-Scattered (RAS) Light exiting from one end of the flow cell. The detector(s) could view the trapped RAS light from the flow cell either directly or through intermediate optical light guides. If the light exits one end of the flow cell, then the other end of the flow cell can be given a high-reflectivity coating to approximately double the amount of light collected. This system is more robust in its alignment than the traditional flow cytometry systems which use imaging optics, such as microscope objectives.

Mariella, Jr., Raymond P. (Danville, CA)

2000-01-01T23:59:59.000Z

394

Motivation for a combined data flow-control flow processor  

Science Conference Proceedings (OSTI)

Data flow sequencing and the directed graph program representation provide two important tools for the development of computer architectures which can exploit problem parallelism. Classical (control flow) architecture deal efficiently with other problems such as serial sequences and data storage which are not handled so well by a data flow architecture. A hybrid which incorporates features of a data flow architecture along with features of a control flow architecture has the potential to become an effective parallel architecture for a wide class of problems. 10 references.

Oxley, D.W.

1981-01-01T23:59:59.000Z

395

Flow pattern, void fraction and pressure drop of two-phase air-water flow in a horizontal circular micro-channel  

SciTech Connect

Adiabatic two-phase air-water flow characteristics, including the two-phase flow pattern as well as the void fraction and two-phase frictional pressure drop, in a circular micro-channel are experimentally studied. A fused silica channel, 320 mm long, with an inside diameter of 0.53 mm is used as the test section. The test runs are done at superficial velocity of gas and liquid ranging between 0.37-16 and 0.005-3.04 m/s, respectively. The flow pattern map is developed from the observed flow patterns i.e. slug flow, throat-annular flow, churn flow and annular-rivulet flow. The flow pattern map is compared with those of other researchers obtained from different working fluids. The present single-phase experiments also show that there are no significant differences in the data from the use of air or nitrogen gas, and water or de-ionized water. The void fraction data obtained by image analysis tends to correspond with the homogeneous flow model. The two-phase pressure drops are also used to calculate the frictional multiplier. The multiplier data show a dependence on flow pattern as well as mass flux. A new correlation of two-phase frictional multiplier is also proposed for practical application. (author)

Saisorn, Sira [Energy Division, The Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand); Wongwises, Somchai [Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Laboratory (FUTURE), Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand)

2008-01-15T23:59:59.000Z

396

Information flow analysis for javascript  

Science Conference Proceedings (OSTI)

Modern Web 2.0 pages combine scripts from several sources into a single client-side JavaScript program with almost no isolation. In order to prevent attacks from an untrusted third-party script or cross-site scripting, tracking provenance of data is ... Keywords: eval, hybrid program analysis, implicit flow, information flow control, unstructured control flow

Seth Just; Alan Cleary; Brandon Shirley; Christian Hammer

2011-10-01T23:59:59.000Z

397

Estimation theoretical image restoration  

E-Print Network (OSTI)

In this thesis, we have developed an extensive study to evaluate image restoration from a single image, colored or monochromatic. Using a mixture of Gaussian and Poisson noise process, we derived an objective function to ...

Dolne, Jean J

2008-01-01T23:59:59.000Z

398

Spectrographic imaging system  

DOE Patents (OSTI)

An imaging system for providing spectrographically resolved images. The system incorporates a one-dimensional spatial encoding mask which enables an image to be projected onto a two-dimensional image detector after spectral dispersion of the image. The dimension of the image which is lost due to spectral dispersion on the two-dimensional detector is recovered through employing a reverse transform based on presenting a multiplicity of different spatial encoding patterns to the image. The system is especially adapted for detecting Raman scattering of monochromatic light transmitted through or reflected from physical samples. Preferably, spatial encoding is achieved through the use of Hadamard mask which selectively transmits or blocks portions of the image from the sample being evaluated.

Morris, Michael D. (Ann Arbor, MI); Treado, Patrick J. (Ann Arbor, MI)

1991-01-01T23:59:59.000Z

399

Synthetic stereoscopic panoramic images  

Science Conference Proceedings (OSTI)

Presented here is a discussion of the techniques required to create stereoscopic panoramic images. Such images allow interactive exploration of 3D environments with stereoscopic depth cues. If projected in a surround display environment they can engage ...

Paul Bourke

2006-10-01T23:59:59.000Z

400

Nuclear Imaging instrumentation  

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

Nuclear Imaging instrumentation Advances in gamma-ray detection and imaging have increased the pace of discovery in a broad cross-section of the sciences ranging from nuclear...

Note: This page contains sample records for the topic "flow diagram image" 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

Ginzburg-Landau phase diagram for dense matter with axial anomaly, strange quark mass, and meson condensation  

SciTech Connect

We discuss the phase structure of dense matter, in particular, the nature of the transition between hadronic and quark matter. Calculations within a Ginzburg-Landau approach show that the axial anomaly can induce a critical point in this transition region. This is possible because in three-flavor quark matter with instanton effects a chiral condensate can be added to the color-flavor locked phase without changing the symmetries of the ground state. In (massless) two-flavor quark matter such a critical point is not possible since the corresponding color superconductor (2SC) does not break chiral symmetry. We study the effects of a nonzero but finite strange quark mass which interpolates between these two cases. Since at ultrahigh density the first reaction of the color-flavor locked phase to a nonzero strange quark mass is to develop a kaon condensate, we extend previous Ginzburg-Landau studies by including such a condensate. We discuss the fate of the critical point systematically and show that the continuity between hadronic and quark matter can be disrupted by the onset of a kaon condensate. Moreover, we identify the mass terms in the Ginzburg-Landau potential which are needed for the 2SC phase to occur in the phase diagram.

Schmitt, Andreas; Stetina, Stephan [Institut fuer Theoretische Physik, Technische Universitaet Wien, 1040 Vienna (Austria); Tachibana, Motoi [Department of Physics, Saga University, Saga 840-8502 (Japan)

2011-02-15T23:59:59.000Z

402

The MACHO Project LMC Variable Star Inventory Classical Cepheids, AGB Variables, and the 9 Million Star Color-Magnitude Diagram  

E-Print Network (OSTI)

We measure the ratio of ~5 M_solar blue and red LMC supergiants (representative of classical Cepheids) using the MACHO Project's 9 million star color-magnitude diagram (9M CMD) of the LMC bar. We find b/r = 0.39, which favors the z=0.008, 5 M_solar theoretical model of Schaerer et al.(1993) over that of Fagatto et al. (1994). Next, we examine the low mass (old) and low metallicity LMC field population (Pop. II). Features in the 9M CMD and properties of LMC field RRab are consistent with a mean iron abundance of [Fe/H] = -1.5 dex for this population. Newly discovered post-HB/early-AGB Pop. II variables are identified in order to delineate the instability strip (IS). Good agreement with the theoretical IS of Bono et al. (1997) is found. We then compare the field RRab with newly identified RRab variables in the LMC clusters NGC 1898 and NGC 1835. We find the mean colors of these cluster RRab lie near the red and blue edges of the IS, respectively, which is similar to their respective (overall) red and blue HB mo...

Alves, D R; Cook, K H; Welch, D L; Alcock, C B; Marshall, S; Axelrod, T S; Drake, A; Freeman, K C; Peterson, B M; Allsman, R A; Becker, A; Tomaney, A B; Griest, K; Vandehei, T; Lehner, M; Bennett, D; Minniti, D; Pratt, M; Sutherland, W; Quinn, P

1998-01-01T23:59:59.000Z

403

Magneto-optical imaging of transport current densities in superconductors  

SciTech Connect

Direct imaging of the paths of transport currents in superconductors creates many new possibilities for exploring the basic features of vortex pinning mechanisms and for improving the performance of superconducting materials. A technique for imaging the path and magnitude of the transport current density flowing in superconductors is described. Results are given for a 37-filament BSCCO 2223 powder-in-tube wire, showing a highly inhomogeneous current path within the filaments.

Crabtree, G.W.; Welp, U.; Gunter, D.O.; Zhong, W.; Balachandran, U. [Argonne National Lab., IL (United States); Haldar, P.; Sokolowski, R.S. [Intermagnetics General Corp., Latham, NY (United States); Vlasko-Vlasov, V.K.; Nikitenko, V.I. [Inst. for Solid State Physics, Moscow (Russian Federation)

1995-12-31T23:59:59.000Z

404

Smolt Responses to Hydrodynamic Conditions in Forebay Flow Nets of Surface Flow Outlets, 2007  

DOE Green Energy (OSTI)

This study provides information on juvenile salmonid behaviors at McNary and The Dalles dams that can be used by the USACE, fisheries resource managers, and others to support decisions on long-term measures to enhance fish passage. We researched smolt movements and ambient hydrodynamic conditions using a new approach combining simultaneous acoustic Doppler current profiler (ADCP) and acoustic imaging device (AID) measurements at surface flow outlets (SFO) at McNary and The Dalles dams on the Columbia River during spring and summer 2007. Because swimming effort vectors could be computed from the simultaneous fish and flow data, fish behavior could be categorized as passive, swimming against the flow (positively rheotactic), and swimming with the flow (negatively rheotactic). We present bivariate relationships to provide insight into fish responses to particular hydraulic variables that engineers might consider during SFO design. The data indicate potential for this empirical approach of simultaneous water/fish measurements to lead to SFO design guidelines in the future.

Johnson, Gary E.; Richmond, Marshall C.; Hedgepeth, J. B.; Ploskey, Gene R.; Anderson, Michael G.; Deng, Zhiqun; Khan, Fenton; Mueller, Robert P.; Rakowski, Cynthia L.; Sather, Nichole K.; Serkowski, John A.; Steinbeck, John R.

2009-04-01T23:59:59.000Z

405

NIST Image Gallery: Search  

Science Conference Proceedings (OSTI)

... Search Tips - Search index includes image titles, descriptions, other text fields - Searches are case-insensitive - Keyword2 is optional. ...

406

Cell Image Visualization  

Science Conference Proceedings (OSTI)

... Biological cell image analysis projects include methods to measure cell segmentation accuracy and new segmentation methods to track live cells. ...

2011-06-17T23:59:59.000Z

407

Video image position determination  

DOE Patents (OSTI)

An optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, Wynn (Los Alamos, NM); Anderson, Forrest L. (Bernalillo, NM); Kortegaard, Birchard L. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

408

Imaging with Scattered Neutrons  

E-Print Network (OSTI)

We describe a novel experimental technique for neutron imaging with scattered neutrons. These scattered neutrons are of interest for condensed matter physics, because they permit to reveal the local distribution of incoherent and coherent scattering within a sample. In contrast to standard attenuation based imaging, scattered neutron imaging distinguishes between the scattering cross section and the total attenuation cross section including absorption. First successful low-noise millimeter-resolution images by scattered neutron radiography and tomography are presented.

H. Ballhausen; H. Abele; R. Gaehler; M. Trapp; A. Van Overberghe

2006-10-30T23:59:59.000Z

409

Document Imaging | Department of Energy  

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

Document Imaging Document Imaging Employee Services Cafeterias Conferencing and Special Events Copy Services Document Imaging Exchange Visitors Program Facility Operations Food...

410

Near-Electrode Imager  

DOE Patents (OSTI)

An apparatus, near-electrode imager, for employing nuclear magnetic resonance imaging to provide in situ measurements of electrochemical properties of a sample as a function of distance from a working electrode. The near-electrode imager use the radio frequency field gradient within a cylindrical toroid cavity resonator to provide high-resolution nuclear magnetic resonance spectral information on electrolyte materials.

Rathke, Jerome W.; Klingler, Robert J.; Woelk, Klaus; Gerald, Rex E.,II

1999-05-01T23:59:59.000Z

411

Acoustic Imaging Suite  

INLs acoustic imaging technology improves methods of capturing moving images of a specified object by using a photorefractive effect to produce a full-field image of the object without using a probe to perform a full scan of the object. INL ...

412

Medical imaging systems  

Science Conference Proceedings (OSTI)

A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

Frangioni, John V

2013-06-25T23:59:59.000Z

413

Diagnostic Imaging Emergency Medicine  

E-Print Network (OSTI)

UC Davis Veterinary Diagnostic Imaging Symposium Emergency Medicine May 15, 2011 Gladys Valley Hall devoted to triage, assessment, and imaging diagnostics in emergency medicine. Speakers in this year's symposium include specialists in diagnostic imaging, and emergency and critical care. Sunday May 15, 2011 8

Hammock, Bruce D.

414

NMR Imaging and Rheology Mini-Symposium Date: Friday, September 28th, 2012  

E-Print Network (OSTI)

NMR Imaging and Rheology Mini "Rheological NMR on polymers: flow, mixing, and polymer dynamics" Prof. Ulrich Scheler Leibniz Institute minute intermission 3:40 pm "Diffusion NMR measurements of surfactants in solutions and small- molecules

Ahlers, Guenter

415

UZ Flow Models and Submodels  

SciTech Connect

The purpose of this report is to document the unsaturated zone (UZ) flow models and submodels, as well as the flow fields that have been generated using the UZ flow model(s) of Yucca Mountain, Nevada. In this report, the term ''UZ model'' refers to the UZ flow model and the several submodels, which include tracer transport, temperature or ambient geothermal, pneumatic or gas flow, and geochemistry (chloride, calcite, and strontium) submodels. The term UZ flow model refers to the three-dimensional models used for calibration and simulation of UZ flow fields. This work was planned in the ''Technical Work Plan (TWP) for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Section 1.2.7). The table of included Features, Events, and Processes (FEPs), Table 6.2-11, is different from the list of included FEPs assigned to this report in the ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Table 2.1.5-1), as discussed in Section 6.2.6. The UZ model has revised, updated, and enhanced the previous UZ model (BSC 2001 [DIRS 158726]) by incorporating the repository design with new grids, recalibration of property sets, and more comprehensive validation effort. The flow fields describe fracture-fracture, matrix-matrix, and fracture-matrix liquid flow rates, and their spatial distributions as well as moisture conditions in the UZ system. These three-dimensional UZ flow fields are used directly by Total System Performance Assessment (TSPA). The model and submodels evaluate important hydrogeologic processes in the UZ as well as geochemistry and geothermal conditions. These provide the necessary framework to test hypotheses of flow and transport at different scales, and predict flow and transport behavior under a variety of climatic conditions. In addition, the limitations of the UZ model are discussed in Section 8.11.

Y. Wu

2004-11-01T23:59:59.000Z

416

SNAP Image Gallery  

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

Images Images Cutaway image of SNAP A cutaway illustration of SNAP showing some of the interior optics. Cutaway image of SNAP A computer generated cutaway illustration of SNAP Cutaway image of SNAP's primary mirror A computer generated cutaway illustration of SNAP's primary mirror image of SNAP spacecraft A computer generated illustration of the SNAP spacecraft computer generated image of SNAP A computer generated illustration of SNAP Before-and-after pictures (and Hubble Space Telescope picture) of a high-redshift supernovae discovered by the Supernova Cosmology Project in March, 1998. Before-and-after pictures (and Hubble Space Telescope picture) of a high-redshift supernovae discovered in March, 1998. This observaton showed that the expansion of the universe was accelerarting. Credit: High Redshift Supernova Search Supernova Cosmology Project

417

Shape-based image retrieval applied to trademark images  

Science Conference Proceedings (OSTI)

In this chapter, we propose a new shape-based, query-by-example, image database retrieval method that is able to match a query image to one of the images in the database, based on a whole or partial match. The proposed method has two key components: ... Keywords: image databases, shape analysis, shape representation, shape-based image retrieval, trademark image retrieval

Ossama El Badawy; Mohamed Kamel

2004-01-01T23:59:59.000Z

418

Fluid flow monitoring device  

DOE Patents (OSTI)

This invention consists of a flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

McKay, M.D.; Sweeney, C.E.

1991-03-05T23:59:59.000Z

419

Ellipsoidal cell flow system  

SciTech Connect

The disclosure relates to a system incorporating an ellipsoidal flow chamber having light reflective walls for low level light detection in practicing cellular analysis. The system increases signal-to-noise ratio by a factor of ten over prior art systems. In operation, laser light passes through the primary focus of the ellipsoid. A controlled flow of cells simultaneously passes through this focus so that the laser light impinges on the cells and is modulated by the cells. The reflective walls of the ellipsoid reflect the cell-modulated light to the secondary focus of the ellipsoid. A tapered light guide at the secondary focus picks up a substantial portion of modulated reflective light and directs it onto a light detector to produce a signal. The signal is processed to obtain the intensity distribution of the modulated light and hence sought after characteristics of the cells. In addition, cells may be dyed so as to fluoresce in response to the laser light and their fluorescence may be processed as cell-modulated light above described. A light discriminating filter would be used to distinguish reflected modulated laser light from reflected fluorescent light.

Salzman, Gary C. (Los Alamos, NM); Mullaney, Paul F. (Los Alamos, NM)

1976-01-01T23:59:59.000Z

420

Radial flow heat exchanger  

DOE Patents (OSTI)

A radial flow heat exchanger (20) having a plurality of first passages (24) for transporting a first fluid (25) and a plurality of second passages (26) for transporting a second fluid (27). The first and second passages are arranged in stacked, alternating relationship, are separated from one another by relatively thin plates (30) and (32), and surround a central axis (22). The thickness of the first and second passages are selected so that the first and second fluids, respectively, are transported with laminar flow through the passages. To enhance thermal energy transfer between first and second passages, the latter are arranged so each first passage is in thermal communication with an associated second passage along substantially its entire length, and vice versa with respect to the second passages. The heat exchangers may be stacked to achieve a modular heat exchange assembly (300). Certain heat exchangers in the assembly may be designed slightly differently than other heat exchangers to address changes in fluid properties during transport through the heat exchanger, so as to enhance overall thermal effectiveness of the assembly.

Valenzuela, Javier (Hanover, NH)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

OpenEI Community - images  

Open Energy Info (EERE)

Image upload with broken thumbnail image http:en.openei.orgcommunitydiscussionimage-upload-broken-thumbnail-image

OpenEI users can upload images to the wiki by typing a new...

422

Similarity Retrieval of Trademark Images  

Science Conference Proceedings (OSTI)

The Artisan system retrieves abstract trademark images by shape similarity. It analyzes each image to characterize key shape components, grouping image regions into families that potentially mirror human image perception, and then derives characteristic ...

John P. Eakins; Jago M. Boardman; Margaret E. Graham

1998-04-01T23:59:59.000Z

423

Magnetoelastic coupling in the phase diagram of Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2}.  

SciTech Connect

We report a high resolution neutron diffraction investigation of the coupling of structural and magnetic transitions in Ba{sub 1-x}K{sub x}Fe{sub 2}As{sub 2}. The tetragonal-orthorhombic and antiferromagnetic transitions are suppressed with potassium doping, falling to zero at x {approx}< 0.24. However, unlike Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2}, the two transitions are first order and coincident over the entire phase diagram, with a biquadratic coupling of the two order parameters. The phase diagram is refined showing that the onset of superconductivity is at x=0.133 with all three phases coexisting until x {approx}> 0.24.

Avci, S.; Chmaissem, O.; Goremychkin, E. A.; Rosenkranz, S.; Castellan, J.-P.; Chung, D. Y.; Todorov, I. S.; Schlueter, J. S.; Claus, H.; Kanatzidis, M. G.; Daoud-Aladine, A.; Khalyavin, D.; Osborn, R. (Materials Science Division); ( PNS); (Northern Illinois Univ.); (Northwestern Univ.); (Rutherford Appleton Lab.)

2011-05-01T23:59:59.000Z

424

Effects of thermal and quantum fluctuations on the phase diagram of a spin-1 {sup 87}Rb Bose-Einstein condensate  

Science Conference Proceedings (OSTI)

We investigate the effects of thermal and quantum fluctuations on the phase diagram of a spin-1 {sup 87}Rb Bose-Einstein condensate (BEC) under the quadratic Zeeman effect. Due to the large ratio of spin-independent to spin-dependent interactions of {sup 87}Rb atoms, the effect of noncondensed atoms on the condensate is much more significant than that in scalar BECs. We find that the condensate and spontaneous magnetization emerge at different temperatures when the ground state is in the broken-axisymmetry phase. In this phase, a magnetized condensate induces spin coherence of noncondensed atoms in different magnetic sublevels, resulting in temperature-dependent magnetization of the noncondensate. We also examine the effect of quantum fluctuations on the order parameter at absolute zero and find that the ground-state phase diagram is significantly altered by quantum depletion.

Phuc, Nguyen Thanh; Kawaguchi, Yuki [Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Ueda, Masahito [Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); ERATO Macroscopic Quantum Control Project, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

2011-10-15T23:59:59.000Z

425

Venn Diagram Tool Kit  

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

Are you a Are you a passionate learner? Continual Learning Program: Employee Development Provides tools and resources for promoting continual learning, individual development, and strategic workforce development at the Department of Energy. It includes three learning sessions described below. Do you work in a learning organization? Will you invest in your own development and are looking for a way to get started? Let us help Keep Learning Even with Tight Budgets When you attend the session, you will be able to:  Discuss the Importance of continual learning  Explain an easy way to approach self-development  Create blended learning strategies for development  Use a tool for planning your IDP Let's Work on Your IDP When you attend the session, you will be able to:

426

Thermodynamics and Phase Diagrams  

Science Conference Proceedings (OSTI)

...of two-phase fields meet also is limited by thermodynamics. That is, the angle must be such that the extension of each beyond the point of intersection projects into a two-phase field, rather than a one-phase

427

Phase Diagram and Physical Properties of H[subscript 2]O at High Pressures and temperatures: Applications to Planetary Interiors  

DOE Green Energy (OSTI)

Here we discuss the phase diagram and physical properties of H{sub 2}O under pressure-temperature conditions relevant to planetary interiors. Recent studies show that the melting curve of H{sub 2}O increases rapidly above a recently discovered triple point at approximately 35 to 47 GPa and 1000 K, indicating a large increase in {Delta}V/{Delta}S (volume versus entropy change) and associated changes in the physical properties of H{sub 2}O at high pressures and temperatures. Existence of the triple point is thought to be associated with the formation of a superionic phase, dynamically-disordered ice VII, or extension of the ice VII-ice X phase boundary; although the precise pressure and temperature of the triple point, curvature of the melting line, and nature of the solid-solid transition below the triple point all remain to be further explored. The steep increase in the melting curve of H{sub 2}O at high pressures and temperatures has important implications on our understanding of planetary interiors. Depending on its curvature, the melting line of H{sub 2}O may intersect the isentropes of Neptune and Uranus as well as the geotherm of Earth's lower mantle. Furthermore, if the triple point is due to the occurrence of the theoretically predicted superionic phase, besides leading to significant ionic conductivity, fast proton diffusion would cause enhanced chemical reactivity and formation of complex compounds in these planets. For example, reaction of H{sub 2}O with iron and other metals to form metal hydrides such as FeH{sub x} could provide a mechanism for incorporation of hydrogen as a light element into Earth's core. The equation of state of water is also presented as it pertains to the properties of hydrous fluid and melt phases in the mantle.

Lin, Jung-Fu; Schwegler, Eric; Yoo, Choong-Shik (LLNL)

2007-02-22T23:59:59.000Z

428

The Three-Dimensional Simulation of Flow Pattern in ECAE  

Science Conference Proceedings (OSTI)

Figure 1 Figure 2. Figure 1. A schematic of ECAE. Figure 2. (a) The fan deformation pattern of ECAE and (b) a velocity-vector diagram.

429

Uranyl Nitrate Flow Loop  

Science Conference Proceedings (OSTI)

The objectives of the work discussed in this report were to: (1) develop a flow loop that would simulate the purified uranium-bearing aqueous stream exiting the solvent extraction process in a natural uranium conversion plant (NUCP); (2) develop a test plan that would simulate normal operation and disturbances that could be anticipated in an NUCP; (3) use the flow loop to test commercially available flowmeters for use as safeguards monitors; and (4) recommend a flowmeter for production-scale testing at an NUCP. There has been interest in safeguarding conversion plants because the intermediate products [uranium dioxide (UO{sub 2}), uranium tetrafluoride (UF{sub 4}), and uranium hexafluoride (UF{sub 6})] are all suitable uranium feedstocks for producing special nuclear materials. Furthermore, if safeguards are not applied virtually any nuclear weapons program can obtain these feedstocks without detection by the International Atomic Energy Agency (IAEA). Historically, IAEA had not implemented safeguards until the purified UF{sub 6} product was declared as feedstock for enrichment plants. H. A. Elayat et al. provide a basic definition of a safeguards system: 'The function of a safeguards system on a chemical conversion plant is in general terms to verify that no useful nuclear material is being diverted to use in a nuclear weapons program'. The IAEA now considers all highly purified uranium compounds as candidates for safeguarding. DOE is currently interested in 'developing instruments, tools, strategies, and methods that could be of use to the IAEA in the application of safeguards' for materials found in the front end of the nuclear fuel cycle-prior to the production of the uranium hexafluoride or oxides that have been the traditional starting point for IAEA safeguards. Several national laboratories, including Oak Ridge, Los Alamos, Lawrence Livermore, and Brookhaven, have been involved in developing tools or techniques for safeguarding conversion plants. This study was sponsored by the U.S. Department of Energy (DOE) NA-241, Office of Dismantlement and Transparency.

Ladd-Lively, Jennifer L [ORNL

2008-10-01T23:59:59.000Z

430

Counter Rotating Open Rotor Animation using Particle Image Velocimetry  

E-Print Network (OSTI)

This article describes the two accompanying fluid dynamics videos for the "Counter rotating open rotor flow field investigation using stereoscopic Particle Image Velocimetry" presented at the 64th Annual Meeting of the APS Division of Fluid Dynamics in Baltimore, Maryland, November 20-22, 2011.

Roosenboom, E W M; Geisler, R; Pallek, D; Agocs, J; Neitzke, K -P

2011-01-01T23:59:59.000Z

431

Elastic capsules in shear flow: Analytical solutions for constant and time-dependent shear rates  

E-Print Network (OSTI)

We investigate the dynamics of microcapsules in linear shear flow within a reduced model with two degrees of freedom. In previous work for steady shear flow, the dynamic phases of this model, i.e. swinging, tumbling and intermittent behaviour, have been identified using numerical methods. In this paper, we integrate the equations of motion in the quasi-spherical limit analytically for time-constant and time-dependent shear flow using matched asymptotic expansions. Using this method, we find analytical expressions for the mean tumbling rate in general time-dependent shear flow. The capsule dynamics is studied in more detail when the inverse shear rate is harmonically modulated around a constant mean value for which a dynamic phase diagram is constructed. By a judicious choice of both modulation frequency and phase, tumbling motion can be induced even if the mean shear rate corresponds to the swinging regime. We derive expressions for the amplitude and width of the resonance peaks as a function of the modulation frequency.

Steffen Kessler; Reimar Finken; Udo Seifert

2009-02-26T23:59:59.000Z

432

Gas-liquid two-phase flow across a bank of micropillars Santosh Krishnamurthy and Yoav Peles  

E-Print Network (OSTI)

densitometry8­10 have been successfully used to measure the void fraction, while in previous micro- channel studies14,15,17 image processing was used. These studies compared the measured void fraction to the homoge the homogeneous void fraction overpredicts the measured value even at low gas flow rates. C. Flow pattern Several

Peles, Yoav

433

Using NMR to Validate First-Principles Granular Flow Equations  

E-Print Network (OSTI)

Nuclear magnetic resonance (NMR) experiments are described for two granular-flow systems, the vibrofluidized bed and the gas-fluidized bed. Using pulsed field gradient, magnetic resonance imaging, and hyperpolarized gas NMR, detailed information is obtained for the density and motions of both grains and interstitial gas. For the vibrofluidized bed, the granular temperature profile is measured and compared with a first-principles formulation of granular hydrodynamics. For the gas-fluidized bed, dynamic correlations in the grain density are used to measure the bubble velocity and hyperpolarized xenon gas NMR is used to measure the bubble-emulsion exchange rate. A goal of these measurements is to verify in earth gravity first-principles theories of granular flows, which then can be used to make concrete predictions for granular flows in reduced gravity.

D. Candela; C. Huan; K. Facto; R. Wang; R. W. Mair; R. L. Walsworth

2005-10-23T23:59:59.000Z

434

Instrumentation for Increased Power Flow  

Science Conference Proceedings (OSTI)

This report is the second Technical Update of the Instrumentation for Managing Increased Power Flow project, part of EPRI's Increased Power Flow (IPF) program. The project, initiated in 2006 and expected to continue for several years, studies the feasibility of new instrumentation to support increased power flow strategies. In 2007 the work focused on two primary developments: the Backscatter Sensor for the real-time measurement of transmission line temperature and current and the Emissivity Test Instrum...

2007-12-06T23:59:59.000Z

435

ARM - Measurement - Hydrometeor image  

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

image image ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor image Images of hydrometeors from which one can derive characteristics such as size and shape. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Field Campaign Instruments LEARJET : Lear Jet PARTIMG : Particle imager UAV-PROTEUS-MICRO : Proteus Cloud Microphysics Instruments SPEC-CPI : Stratton Park Engineering Company - Cloud particle imager UAV-PROTEUS : UAV Proteus

436

Video Toroid Cavity Imager  

DOE Patents (OSTI)

A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

2004-08-10T23:59:59.000Z

437

Video image position determination  

DOE Patents (OSTI)

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-01-01T23:59:59.000Z

438

Video image position determination  

DOE Patents (OSTI)

The present invention generally relates to the control of video and optical information and, more specifically, to control systems utilizing video images to provide control. Accurate control of video images and laser beams is becoming increasingly important as the use of lasers for machine, medical and experimental processes escalates. In, AURORA, an installation at Los Alamos National Laboratory dedicated to laser fusion research, it is necessary to precisely control the path and angle of up to 96 lasers beams. This invention is comprised of an optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, W.; Anderson, F.L.; Kortegaard, B.L.

1990-12-31T23:59:59.000Z

439

HYDROCARBON LIQUID FLOW CALIBRATION SERVICE ...  

Science Conference Proceedings (OSTI)

... and is the cross correlation coefficient ... a NIST Hydrocarbon Liquid Flow Calibration Facility ... FED2004-56790, 2004 Heat Transfer/Fluids Engineering ...

2012-05-21T23:59:59.000Z

440

Flow Batteries: A Historical Perspective  

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

Marvin Warshay *1976 Shunt Current Model, Paul Prokopius *1976 Interfaced an RFB with solar cells *1977 Electrode-Membrane-Flow Battery Testing *Largest polarization @ negative...

Note: This page contains sample records for the topic "flow diagram image" 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

EPRI Coal-Flow Loop  

Science Conference Proceedings (OSTI)

This report is targeted at plant personnel responsible for coal-flow measurement and mill balancing that are using or are considering the use of online, in situ measurement technologies. Optimum combustion in a boiler requires careful control of coal and air flow to individual burners. Measuring in near real-time the mass flow rate of pneumatically conveyed pulverized coal in burner feed pipes is a critical element of such control. This report summarizes the findings for two online coal-flow instruments ...

2006-12-01T23:59:59.000Z

442

Stellar Imager (SI): developing and testing a predictive dynamo model for the Sun by imaging other stars  

E-Print Network (OSTI)

The Stellar Imager mission concept is a space-based UV/Optical interferometer designed to resolve surface magnetic activity and subsurface structure and flows of a population of Sun-like stars, in order to accelerate the development and validation of a predictive dynamo model for the Sun and enable accurate long-term forecasting of solar/stellar magnetic activity.

Carpenter, Kenneth G; Karovska, Margarita; Kraemer, Steve; Lyon, Richard; Mozurkewich, David; Airapetian, Vladimir; Adams, John C; Allen, Ronald J; Brown, Alex; Bruhweiler, Fred; Conti, Alberto; Christensen-Dalsgaard, Joergen; Cranmer, Steve; Cuntz, Manfred; Danchi, William; Dupree, Andrea; Elvis, Martin; Evans, Nancy; Giampapa, Mark; Harper, Graham; Hartman, Kathy; Labeyrie, Antoine; Leitner, Jesse; Lillie, Chuck; Linsky, Jeffrey L; Lo, Amy; Mighell, Ken; Miller, David; Noecker, Charlie; Parrish, Joe; Phillips, Jim; Rimmele, Thomas; Saar, Steve; Sasselov, Dimitar; Stahl, H Philip; Stoneking, Eric; Strassmeier, Klaus; Walter, Frederick; Windhorst, Rogier; Woodgate, Bruce; Woodruff, Robert

2010-01-01T23:59:59.000Z

443

Ferroelectric optical image comparator  

DOE Patents (OSTI)

A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

1993-11-30T23:59:59.000Z

444

Ferroelectric optical image comparator  

DOE Patents (OSTI)

A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image.

Butler, Michael A. (Albuquerque, NM); Land, Cecil E. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM); Pfeifer, Kent B. (Los Lunas, NM)

1993-01-01T23:59:59.000Z

445

Image Shift Measurement  

Science Conference Proceedings (OSTI)

... Set the write directory to a new folder for the cropped images. Use Process Folder / Text file / Template to make the boiler plate processing file. ...

446

Manhattan Project: Places Images  

Office of Scientific and Technical Information (OSTI)

PLACES IMAGES PLACES IMAGES Resources > Photo Gallery Scroll down to see each of these images individually. The images are: 1. Remains of a Shinto Shrine, Nagasaki, October 1945 (courtesy the United States Marine Corps, Lieutenant R. J. Battersby, photographer, via the National Archives); 2. University of California, Berkeley, 1940 (courtesy the Lawrence Berkeley National Laboratory); 3. Aerial photograph of the Trinity Site after the test (courtesy the Federation of American Scientists); 4. Aerial photograph of Hiroshima before the bombing; 5. Columbia University, 1903 (courtesy the Library of Congress; this photograph originated from the Detroit Publishing Company; it was a 1949 gift to the Library of Congress from the State Historical Society of Colorado).

447

Quantitative luminescence imaging system  

DOE Patents (OSTI)

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

1990-08-14T23:59:59.000Z

448

Imaging Beyond Optics  

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

Views" piece in that same issue. "Generations of astronomers have used interferometric tests to achieve the proper shape of their mirrors before using them to image the heavens....

449

Quantitative luminescence imaging system  

DOE Patents (OSTI)

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

1990-01-01T23:59:59.000Z

450

Kursk Site Image #1  

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

Graphs Image KRS-1: Clipping above-ground biomass at the Kursk grassland site, Russia. (Dr. Kira Khodashova and student Nina N., Moscow State University, are estimating monthly...

451

Patterns in Flowing Sand: Understanding the Physics of Granular Flow  

E-Print Network (OSTI)

Dense granular flows are often unstable and form inhomogeneous structures. Although significant advances have been recently made in understanding simple flows, instabilities of such flows are often not understood. We present experimental and numerical results that show the formation of longitudinal stripes that arise from instability of the uniform flowing state of granular media on a rough inclined plane. The form of the stripes depends critically on the mean density of the flow with a robust form of stripes at high density that consists of fast sliding plug-like regions (stripes) on top of highly agitated boiling material - a configuration reminiscent of the Leidenfrost effect when a droplet of liquid lifted by its vapor is hovering above a hot surface.

Tamas Borzsonyi; Robert E. Ecke; Jim N. McElwaine

2009-10-01T23:59:59.000Z

452

Automatic Image Orientation Determination with Natural Image Statistics  

E-Print Network (OSTI)

Automatic Image Orientation Determination with Natural Image Statistics Siwei Lyu Dept. of Computer a new method for automatically determining image orientations. This method is based on a set of natural image statistics collected from a multi- scale multi-orientation image decomposition (e.g., wavelets

Lyu, Siwei

453

Quantum Imaging: Enhanced Image Formation Using Quantum States of Light  

E-Print Network (OSTI)

Quantum Imaging: Enhanced Image Formation Using Quantum States of Light Robert W. Boyd, Kam Wai, University of Rochester, Rochester, NY 14627, USA ABSTRACT We review recent research in the field of quantum imaging. Quantum imaging deals with the formation of images that possess higher resolution or better

Boyd, Robert W.

454

Split flow gasifier  

DOE Patents (OSTI)

A-moving bed coal gasifier for the production of tar-free, low ammonia fuel gas is described. The gasifier employs a combustion zone in a free-aboard area above the moving bed to burn coal fines to provide hot combustion gases for pyrolyzing and gasifying coal particulates in the moving bed to form fuel gas as the hot gases move co-currently with the downwardly moving coal particulates. The fuel gas contains entrained tars and ammonia compounds which contact hot char and ash in the moving bed and are cracked so that the fuel gas removed from the gasifier at a midpoint off-take is essentially tar-free and of low ammonia content. Concurrently with this gasification reaction, steam and an oxidant are introduced into a region below the moving bed to flow countercurrently to the downwardly moving bed to contact and react with carbon remaining in the char to create additional fuel gas which is also extracted from the gasifier at the mid-point off-take.

Halow, J.S.

1991-12-31T23:59:59.000Z

455

Heart imaging method  

DOE Patents (OSTI)

A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

1991-01-01T23:59:59.000Z

456

Medical imaging systems  

DOE Patents (OSTI)

A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

Frangioni, John V. (Wayland, MA)

2012-07-24T23:59:59.000Z

457

DOUBLE MAJORS Imaging Science + ...  

E-Print Network (OSTI)

DOUBLE MAJORS Imaging Science + ... Applied Mathematics Biomedical Sciences Computer Science Undergraduate Research Internships and Cooperative Education (Co-op) (optional) Study Abroad WHY IMAGING SCIENCE Science: BS, MS, PhD Color Science: MS, PhD BS + MS/PhD Combos HUMAN VISION BIO- MEDICAL ASTRO- PHYSICS

Zanibbi, Richard

458

Manhattan Project: Image Retouching`  

Office of Scientific and Technical Information (OSTI)

Image Retouching Image Retouching Resources > Photo Gallery Smyth Report (original) Smyth Report (retouched) Images on this web site have sometimes been "retouched." In every case, however, the intention has been only to restore the image as much as possible to its original condition. Above is a rather extreme example-"before and after" versions of the cover of the Smyth Report (Henry DeWolf Smyth, Atomic Energy for Military Purposes: The Official Report on the Development of the Atomic Bomb under the Auspices of the United States Government, 1940-1945 (Princeton, NJ: Princeton University Press, 1945)). The Smyth Report was commissioned by Leslie Groves and originally issued by the Manhattan Engineer District. Princeton University Press reprinted it in book form as a "public service" with "reproduction in whole or in part authorized and permitted.") Larger versions of the same images are below.

459

GTL Image Gallery  

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

Human Genome Project Information • Genomic Science • Microbial Genome Program • sitemap • home Human Genome Project Information • Genomic Science • Microbial Genome Program • sitemap • home Announcing the New Image Gallery Visit the new Image Gallery for an expanded suite of images Biofuels Browse the 2010 "Bioenergy Research Centers: An Overview of the Science" Brochure Gallery. Browse the 2006 "Breaking the Biological Barriers to Cellulosic Ethanol: A Joint Research Agenda" Report Gallery. Browse more biofuels images (includes the June 2006 "Understanding Biomass" Primer Gallery). Systems Biology Browse the August 2005 "Genomics:GTL Roadmap: Systems Biology for Energy and Environment" Gallery. Basic Genomics Browse the Human Chromosome Gallery. Browse more Basic Genomics images. Carbon Cycling

460

Efficient Graffiti Image Retrieval  

Science Conference Proceedings (OSTI)

Research of graffiti character recognition and retrieval, as a branch of traditional optical character recognition (OCR), has started to gain attention in recent years. We have investigated the special challenge of the graffiti image retrieval problem and propose a series of novel techniques to overcome the challenges. The proposed bounding box framework locates the character components in the graffiti images to construct meaningful character strings and conduct image-wise and semantic-wise retrieval on the strings rather than the entire image. Using real world data provided by the law enforcement community to the Pacific Northwest National Laboratory, we show that the proposed framework outperforms the traditional image retrieval framework with better retrieval results and improved computational efficiency.

Yang, Chunlei; Wong, Pak C.; Ribarsky, William; Fan, Jianping

2012-07-05T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

Edge structure preserving image denoising  

Science Conference Proceedings (OSTI)

Image denoising is important in image analysis. It is often used for pre-processing images so that subsequent image analysis is more reliable. Besides noise removal, one important requirement for image denoising procedures is that they should preserve ... Keywords: Angles, Curvature, Edges, Jump-preserving surface estimation, Local smoothing, Nonparametric regression, Surface estimation

Peihua Qiu; Partha Sarathi Mukherjee

2010-10-01T23:59:59.000Z

462

Adaptive wiener image restoration kernel  

DOE Patents (OSTI)

A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

Yuan, Ding (Henderson, NV)

2007-06-05T23:59:59.000Z

463

IMAGING: the Neutron Imaging Prototype Facility at HFIR | ORNL...  

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

Neutron Imaging Prototype Facility CG-1D flight tubes Neutron imaging beam line CG-1D. The CG-1D beam is used for neutron imaging measurements and can be configured for white beam...

464

Moving Character Observation of Bubble Rising in Vertical Gas?Liquid Two?Phase Flow  

Science Conference Proceedings (OSTI)

The study of bubble motion in water is a basic subject in gas?liquid two?phase flow research. A suit of visualized experimental device was designed and set up. Bubble rising in stagnant liquid in a vertical translucent rectangular tank was studied using the high?speed video system combined with digital image process methods. Several bubble parameters were calculated base on the processed images. Bubble track

H. Y. Wang; F. Dong

2010-01-01T23:59:59.000Z

465

Urban Sewage Delivery Heat Transfer System (1): Flow Resistance and Energy Analysis  

E-Print Network (OSTI)

The thimble delivery heat-transfer (TDHT) system is one of the primary modes to utilize the energy of urban sewage. Given the schematic diagram of TDHT system, introducing the definition of equivalent fouling roughness height, and using the Niklaus semi-rational resistance coefficient formula in rough region, the calculation methods of the sewage flow resistance are explained. Through the resistance contrastive analysis of sewage and pure mediate water, the results indicate that the mediate water sub-system is the primary design point of the TDHT system. The economical ratio of flux and velocity is determined by optimization analysis of investment and operating cost in the technical feasible range. The paper will provide reference for pipe design and pump selection of urban sewage cool or heat source applied delivery heat transfer methods.

Zhang, C.; Wu, R.; Li, G.; Li, X.; Huang, L.; Sun, D.

2006-01-01T23:59:59.000Z

466

Hypertools in image and volume visualization  

SciTech Connect

This paper describes our experience in image and volume visualization at the Lawrence Livermore National Laboratory. After an introduction on visualization issues, we present a new software approach to the analysis and visualization of images and volumes. The efficiency of the visualization process is improved by letting the user combine small and reusable applications by the means of a machine-independent interpreted language such as Tcl/Tk. These hypertools can communicate with each other over a network, which has a direct impact on the design of graphical interfaces. We first describe the implementation of a flexible gray-scale image widget that can handle large data sets, provides complete control of the color palette and allows for manual and semi-interactive segmentation. This visualization tool can be embedded in a data-flow image processing environment to assess the quality of acquisition, preprocessing and filtering of raw data. This approach combines the simplicity of visual programming with the power of a high-level interpreted language. We show how hypertools can be used in surface and volume rendering and how they increase the interaction efficiency by performing complex or tedious tasks automatically. One biomedical application is presented.

Bossart, P.L.

1996-06-17T23:59:59.000Z

467

Turbine blade tip flow discouragers  

SciTech Connect

A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

Bunker, Ronald Scott (Niskayuna, NY)

2000-01-01T23:59:59.000Z

468

Physics of two-phase flow: choked flow  

DOE Green Energy (OSTI)

It is shown that the basic equations governing the flow of a two-phase fluid, i.e., liquid and vapor, are natural extensions of those equations that describe single-phase flow. The exact form of the equations depends on the particular assumptions used to characterize the two-phase flow, i.e., the equations depend on the model chosen. In general the mathematical model is selected so as to retain as much of the physics of the phenomena as possible while at the same time permitting solutions to be obtained without undue complexity. The following quantities were computed for saturated water substance over the temperature range 100 to 250/sup 0/C and for saturated Refrigerant -114 over the range -20 to +70/sup 0/C: choking velocity, critical or choking flow density, and saturation properties. Tables of the results are given along with graphs of selected functions.

Maeder, P.F.; DiPippo, R.; Delor, M.; Dickinson, D.

1981-05-01T23:59:59.000Z

469

The transition from two phase bubble flow to slug flow  

E-Print Network (OSTI)

The process of transition from bubble to slug flow in a vertical pipe has been studied analytically and experimentally. An equation is presented which gives the agglomeration time as a function of void fraction, channel ...

Radovcich, Nick A.

1962-01-01T23:59:59.000Z

470

HYDROGEN ELECTROLYZER FLOW DISTRIBUTOR MODEL  

DOE Green Energy (OSTI)

The hybrid sulfur process (HyS) hydrogen electrolyzer consists of a proton exchange membrane (PEM) sandwiched between two porous graphite layers. An aqueous solution of sulfuric acid with dissolved SO{sub 2} gas flows parallel to the PEM through the porous graphite layer on the anode side of the electrolyzer. A flow distributor, consisting of a number of parallel channels acting as headers, promotes uniform flow of the anolyte fluid through the porous graphite layer. A numerical model of the hydraulic behavior of the flow distributor is herein described. This model was developed to be a tool to aid the design of flow distributors. The primary design objective is to minimize spatial variations in the flow through the porous graphite layer. The hydraulic data from electrolyzer tests consists of overall flowrate and pressure drop. Internal pressure and flow distributions are not measured, but these details are provided by the model. The model has been benchmarked against data from tests of the current electrolyzer. The model reasonably predicts the viscosity effect of changing the fluid from water to an aqueous solution of 30 % sulfuric acid. The permeability of the graphite layer was the independent variable used to fit the model to the test data, and the required permeability for a good fit is within the range literature values for carbon paper. The model predicts that reducing the number of parallel channels by 50 % will substantially improve the uniformity of the flow in the porous graphite layer, while maintaining an acceptable pressure drop across the electrolyzer. When the size of the electrolyzer is doubled from 2.75 inches square to 5.5 inches square, the same number of channels as in the current design will be adequate, but it is advisable to increase the channel cross-sectional flow area. This is due to the increased length of the channels.

Shadday, M

2006-09-28T23:59:59.000Z

471

Polarization transfer NMR imaging  

DOE Patents (OSTI)

A nuclear magnetic resonance (NMR) image is obtained with spatial information modulated by chemical information. The modulation is obtained through polarization transfer from a first element representing the desired chemical, or functional, information, which is covalently bonded and spin-spin coupled with a second element effective to provide the imaging data. First and second rf pulses are provided at first and second frequencies for exciting the imaging and functional elements, with imaging gradients applied therebetween to spatially separate the nuclei response for imaging. The second rf pulse is applied at a time after the first pulse which is the inverse of the spin coupling constant to select the transfer element nuclei which are spin coupled to the functional element nuclei for imaging. In a particular application, compounds such as glucose, lactate, or lactose, can be labeled with .sup.13 C and metabolic processes involving the compounds can be imaged with the sensitivity of .sup.1 H and the selectivity of .sup.13 C.

Sillerud, Laurel O. (Los Alamos, NM); van Hulsteyn, David B. (Santa Fe, NM)

1990-01-01T23:59:59.000Z

472

Textureless Macula Swelling Detection with Multiple Retinal Fundus Images  

SciTech Connect

Retinal fundus images acquired with non-mydriatic digital fundus cameras are a versatile tool for the diagnosis of various retinal diseases. Because of the ease of use of newer camera models and their relatively low cost, these cameras can be employed by operators with limited training for telemedicine or Point-of-Care applications. We propose a novel technique that uses uncalibrated multiple-view fundus images to analyse the swelling of the macula. This innovation enables the detection and quantitative measurement of swollen areas by remote ophthalmologists. This capability is not available with a single image and prone to error with stereo fundus cameras. We also present automatic algorithms to measure features from the reconstructed image which are useful in Point-of-Care automated diagnosis of early macular edema, e.g., before the appearance of exudation. The technique presented is divided into three parts: first, a preprocessing technique simultaneously enhances the dark microstructures of the macula and equalises the image; second, all available views are registered using non-morphological sparse features; finally, a dense pyramidal optical flow is calculated for all the images and statistically combined to build a naiveheight- map of the macula. Results are presented on three sets of synthetic images and two sets of real world images. These preliminary tests show the ability to infer a minimum swelling of 300 microns and to correlate the reconstruction with the swollen location.

Giancardo, Luca [ORNL; Meriaudeau, Fabrice [ORNL; Karnowski, Thomas Paul [ORNL; Tobin Jr, Kenneth William [ORNL; Grisan, Enrico [University of Padua, Padua, Italy; Favaro, Paolo [Heriot-Watt University, Edinburgh; Ruggeri, Alfredo [University of Padua, Padua, Italy; Chaum, Edward [University of Tennessee, Knoxville (UTK)

2010-01-01T23:59:59.000Z

473

Image Windows - description of data types  

Science Conference Proceedings (OSTI)

... image, or RGB color image. cstack Stack of color (RGB) images. FRED (text) window; Dialog; (various) graphics windows.

474

An evaluation of the neutron radiography facility at the Nuclear Science Center for dynamic imaging of two-phase hydrogenous fluids  

E-Print Network (OSTI)

Though both film and video radiographic image techniques are available in neutron radiography, radiographic cameras are commonly used to capture the dynamic flow patterns in a rapid sequence of images. These images may be useful to verify two-phase flow models in small diameter flow channels. An initial series of real-time neutron radiography experiments were performed at the Texas A&M University System, Texas Engineering Experiment Station, Nuclear Science Center Reactor (NSCR) to determined the image resolution of two-phase water and air flow regimes through small diameter metal flow channels. After evaluating these initial images, research was conducted to determine cost effective enhancements that would increase the dimensional accuracy and contrast of these flow images. Modifications were completed to the beam collimator and the radiography camera video processing board was realigned to provide a stronger vidio signal with less noise. Several hydrogenous-media reference standards were designed and constructed to evaluate the effectiveness of the modifications. The beamport collimator was redesigned and the radiography calibration methodology was changed. The post-modification images demonstrate that a smaller, more focused neutron beam and a more sensitive video camera provide clearer images with excellent dimensional characteristics. Specific research to quantify both the resolution and sensitivity limits is proposed and a change in dynamic target imaging methodology is proposed.

Carlisle, Bruce Scott

1994-01-01T23:59:59.000Z

475

Proper planning improves flow drilling  

Science Conference Proceedings (OSTI)

Underbalanced operations reduce formation damage, especially in horizontal wells where zones are exposed to mud for longer time periods. Benefits, risks, well control concerns, equipment and issues associated with these operations are addressed in this paper. Flow drilling raises many concerns, but little has been published on horizontal well control and flow drilling operations. This article covers planning considerations for flow drilling, but does not address horizontal ''overbalanced'' drilling because considerations and equipment are the same as in vertical overbalanced drilling and many references address that subject. The difference in well control between vertical and horizontal overbalanced drilling is fluid influx behavior and how that behavior affects kill operations.

Collins, G.J. (Marathon Oil Co., Houston, TX (United States))

1994-10-01T23:59:59.000Z

476

Magnetic resonance imaging in Mexico  

Science Conference Proceedings (OSTI)

MR imaging has experienced an important growth worldwide and in particular in the USA and Japan. This imaging technique has also shown an important rise in the number of MR imagers in Mexico. However

A. O. Rodriguez; R. Rojas; F. A. Barrios

2001-01-01T23:59:59.000Z

477

Scanning computed confocal imager  

DOE Patents (OSTI)

There is provided a confocal imager comprising a light source emitting a light, with a light modulator in optical communication with the light source for varying the spatial and temporal pattern of the light. A beam splitter receives the scanned light and direct the scanned light onto a target and pass light reflected from the target to a video capturing device for receiving the reflected light and transferring a digital image of the reflected light to a computer for creating a virtual aperture and outputting the digital image. In a transmissive mode of operation the invention omits the beam splitter means and captures light passed through the target.

George, John S. (Los Alamos, NM)

2000-03-14T23:59:59.000Z

478

Ghost Imaging with Blackbody Radiation  

E-Print Network (OSTI)

We present a theoretical study of ghost imaging by using blackbody radiation source. A Gaussian thin lens equation for the ghost imaging, which depends on both paths, is derived. The dependences of the visibility and quality of the image on the transverse size and temperature of the blackbody are studied. The main differences between the ghost imaging by using the blackbody radiation and by using the entangled photon pairs are image-forming equation, and the visibility and quality of the image

Yangjian Cai; Shiyao Zhu

2004-07-29T23:59:59.000Z

479

Quantitative Imaging in Cell Biology  

E-Print Network (OSTI)

Quantitative! imaging! in! biology! is! concerned! with!Quantitative! imaging! in! biology! is! concerned! with!advances! in! cell! biology! by! enabling! the! tracking!

Yassif, Jaime

2012-01-01T23:59:59.000Z

480

NIST Hyperspectral Image Projector (HIP)  

Science Conference Proceedings (OSTI)

... In DLP systems, the projected image is made from a composite of grayscale images representing each of the RGB colors (red, green, and blue). ...

2013-08-02T23:59:59.000Z

Note: This page contains sample records for the topic "flow diagram image" 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

NERSC Image and Video Galleries  

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

Archive User Science Images Home News & Publications Galleries Galleries 18.jpg NERSC Systems In this gallery view images and videos of the systems that undergird all NERSC...

482

Definition: Flow Test | Open Energy Information  

Open Energy Info (EERE)

Flow Test Jump to: navigation, search Dictionary.png Flow Test Flow tests are typically conducted shortly after a well has been drilled to test its productivity. The well is opened...

483

Transitions between Baroclinic Flow Regimes  

Science Conference Proceedings (OSTI)

we use truncated spectral Eady models with two Ekman layers of different strength to investigate the baroclinic flow transitions observed in annulus experiments. Our analysis is both analytical and numerical As the dissipation parameter is varied ...

H-Y. Weng; A. Barcilon; J. Magnan

1986-08-01T23:59:59.000Z

484

Coal flows | OpenEI  

Open Energy Info (EERE)

Coal flows Coal flows Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 142, and contains only the reference case. The dataset uses million short tons. The data is broken down into steam coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO Coal flows countries EIA exporting importing Data application/vnd.ms-excel icon AEO2011: World Steam Coal Flows By Importing Regions and Exporting Countries- Reference Case (xls, 103.7 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License

485

Essays on international capital flows  

E-Print Network (OSTI)

This dissertation consists of three chapters on international capital flows. Chapter 1 emphasizes the importance of innovations in the investment opportunity set, captured by changes in expected asset returns, as an important ...

Brando, Tatiana Glindmeier Didier

2008-01-01T23:59:59.000Z

486

Lattice splitting under intermittent flows  

E-Print Network (OSTI)

We study the splitting of regular square lattices subject to stochastic intermittent flows. By extensive Monte Carlo simulations we reveal how the time span until the occurence of a splitting depends on various flow patterns imposed on the lattices. Increasing the flow fluctuation frequencies shortens this time span which reaches a minimum before rising again due to inertia effects incorporated in the model. The size of the largest connected component after the splitting is rather independent of the flow fluctuations but sligthly decreases with the link capacities. Our results are relevant for assessing the robustness of real-life systems, such as electric power grids with a large share of renewable energy sources including wind turbines and photovoltaic systems.

Schlpfer, Markus

2010-01-01T23:59:59.000Z

487

Miniaturized flow injection analysis system  

DOE Patents (OSTI)

A chemical analysis technique known as flow injection analysis, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38.times.25.times.3 mm, but can be designed for gas analysis and be substantially smaller in construction.

Folta, James A. (Livermore, CA)

1997-01-01T23:59:59.000Z

488

Miniaturized flow injection analysis system  

DOE Patents (OSTI)

A chemical analysis technique known as flow injection analysis is described, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38{times}25{times}3 mm, but can be designed for gas analysis and be substantially smaller in construction. 9 figs.

Folta, J.A.

1997-07-01T23:59:59.000Z

489

Flow Acceleration and Mountain Drag*  

Science Conference Proceedings (OSTI)

Dynamic explanations of mountain drag usually invoke viscous effects and/or wave momentum flux by either Rossby or internal gravity waves. This paper explores an alternative mechanism in terms of the unsteadiness of the incident flow. The ...

Peter R. Bannon

1985-12-01T23:59:59.000Z

490

Studies of Flows in Plasmas  

SciTech Connect

Note a pdf document "DOE-flow-final-report' should be attached. If it somehow is not please notify Walter Gekelman (gekelman@physics.ucla.edu) who will e mail it directly

Gekelman, Walter; Morales, George; Maggs, James

2009-03-07T23:59:59.000Z

491

Longitudinal dispersion in vegetated flow  

E-Print Network (OSTI)

Vegetation is ubiquitous in rivers, estuaries and wetlands, strongly influencing both water conveyance and mass transport. The plant canopy affects both mean and turbulent flow structure, and thus both advection and ...

Murphy, Enda

2006-01-01T23:59:59.000Z

492

Parabolic flows on complex manifolds  

E-Print Network (OSTI)

Chapter 2 Convergence of the parabolic complex Monge-Amp`ere65] Streets, J. , Tian, G. A parabolic flow of pluriclosedGill, M. Convergence of the parabolic complex Monge-Amp` ere

Gill, Matthew Franklin

2012-01-01T23:59:59.000Z

493