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Note: This page contains sample records for the topic "flux coupling machines" 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

John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines...  

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

Flux Coupling Machines and Switched Reluctance Motors to Replace Permanent Magnets in Electric Vehicles John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines and...

2

John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines...  

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

John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines and Switched Reluctance Motors to Replace Permanent Magnets in Electric Vehicles John Hsu, Oak Ridge National...

3

Direct control of air gap flux in permanent magnet machines  

DOE Patents (OSTI)

A method and apparatus for field weakening in PM machines uses field weakening coils (35, 44, 45, 71, 72) to produce flux in one or more stators (34, 49, 63, 64), including a flux which counters flux normally produced in air gaps between the stator(s) (34, 49, 63, 64) and the rotor (20, 21, 41, 61) which carries the PM poles. Several modes of operation are introduced depending on the magnitude and polarity of current in the field weakening coils (35, 44, 45, 71, 72). The invention is particularly useful for, but not limited to, the electric vehicle drives and PM generators.

Hsu, John S. (Oak Ridge, TN)

2000-01-01T23:59:59.000Z

4

Substantially parallel flux uncluttered rotor machines  

Science Conference Proceedings (OSTI)

A permanent magnet-less and brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by polyphase alternating currents. An uncluttered rotor is positioned within the magnetic rotating field and is spaced apart from the stator. An excitation core is spaced apart from the stator and the uncluttered rotor and magnetically couples the uncluttered rotor. The brushless excitation source generates a magnet torque by inducing magnetic poles near an outer peripheral surface of the uncluttered rotor, and the stator currents also generate a reluctance torque by a reaction of the difference between the direct and quadrature magnetic paths of the uncluttered rotor. The system can be used either as a motor or a generator

Hsu, John S.

2012-12-11T23:59:59.000Z

5

Designing, testing, and analyzing coupled, flux transformer heat.  

E-Print Network (OSTI)

??The proposed research involves designing, testing, and ics. analyzing a coupled, flux transformer heat pipe system following the patent of Oktay and Peterson (1997). Experiments… (more)

Renzi, Kimberly Irene

2012-01-01T23:59:59.000Z

6

Electromechanical coupling model for cutterhead driving system of shield machines  

Science Conference Proceedings (OSTI)

The synchronization of the cutterhead driving system of shield machines is affected by not only the nonlinearity of mechanical transmission mechanism and the characteristics of driving motors, but also their interaction. In this paper, dynamics of the ... Keywords: cutterhead, electromechanical coupling, synchronization

Jianzhong Sun; Ran Liu; Yaqin Luo; Wei Sun

2010-11-01T23:59:59.000Z

7

Analysis and Design of a High Power Density Axial Flux Permanent Magnet Linear Synchronous Machine Used for Stirling System  

Science Conference Proceedings (OSTI)

a high power density axial flux permanent magnet linear synchronous machine and the stirling system will be introduced. This machine is a tubular axial flux permanent magnet machine. It comprises two parts: stator and mover. With the 2D finite-element ... Keywords: permanent magnet, stirling engine, linear motor

Ping Zheng; Xuhui Gan; Lin Li

2010-09-01T23:59:59.000Z

8

Digital signal processing control of induction machine`s torque and stator flux utilizing the direct stator flux field orientation method  

SciTech Connect

This paper presents a review of the Direct Stator Flux Field Orientation control method. This method can be used to control an induction motor`s torque and flux directly and is the application of interest for this thesis. This control method is implemented without the traditional feedback loops and associated hardware. Predictions are made, by mathematical calculations, of the stator voltage vector. The voltage vector is determined twice a switching period. The switching period is fixed throughout the analysis. The three phase inverter duty cycle necessary to control the torque and flux of the induction machine is determined by the voltage space vector Pulse Width Modulation (PWM) technique. Transient performance of either the flux or torque requires an alternate modulation scheme which is also addressed in this thesis. A block diagram of this closed loop system is provided. 22 figs., 7 tabs.

Seiz, J.B.

1997-04-01T23:59:59.000Z

9

Molecular isotopic effects on coupled electronic and nuclear fluxes  

SciTech Connect

A full quantum treatment shows that coupled electronic and nuclear fluxes exhibit a strong sensitivity to a small mass change in a vibrating molecule. This has been exemplified with the existing isotopes of H{sub 2}{sup +} as well as few fictitious ones. We find that the fluxes undergo a significant change as one goes from one isotope of reduced mass {mu} to another. Other well-defined observables are likewise affected. It turns out that as a general rule, the heavier the isotope, the larger the flux, the smaller the dispersion, and the longer the revival period. While we were able to confirm analytically that the time at the first turning point scales as {radical}({mu}) and that the revival period changes linearly with {mu}, the mechanism of other observables remains subtle as the result of quantum interference highlighted by the pronounced difference observed on the dispersion pattern.

Kenfack, A.; Paulus, B. [Physikalische und Theoretische Chemie, Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, D-14195 Berlin (Germany); Barth, I. [Physikalische und Theoretische Chemie, Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, D-14195 Berlin (Germany); Max-Born-Institut, Max-Born-Strasse 2A, D-12489 Berlin (Germany); Marquardt, F. [Visualisierung und Datenanalyse, Zuse Institut Berlin, D-14195 Berlin (Germany); Fachbereich Mathematik, Freie Universitaet Berlin, D-14195 Berlin (Germany)

2010-12-15T23:59:59.000Z

10

Design and market considerations for axial flux superconducting electric machine design  

E-Print Network (OSTI)

In this paper, the authors investigate a number of design and market considerations for an axial flux superconducting electric machine design that uses high temperature superconductors. This work was carried out as part of the University of Cambridge's Centre for Entrepreneurial Learning ETECH Project programme, designed to accelerate entrepreneurship and diffusion of innovations based on early stage and potentially disruptive technologies from the University. The axial flux machine design is assumed to utilise high temperature superconductors in both wire (stator winding) and bulk (rotor field) forms, to operate over a temperature range of 65-77 K, and to have a power output in the range from 10s of kW up to 1 MW (typical for axial flux machines), with approximately 2-3 T as the peak trapped field in the bulk superconductors. The authors firstly investigate the applicability of this type of machine as a generator in small- and medium-sized wind turbines, including the current and forecasted market and pricin...

Ainslie, Mark D; Shaw, Robert; Dawson, Lewis; Winfield, Andy; Steketee, Marina; Stockley, Simon

2013-01-01T23:59:59.000Z

11

Novel Flux Coupling Radial-Gap Motor - Oak Ridge National ...  

The invention relates to electric machines for use in electric or hybrid-electric vehicles and more specifically to a

12

Modification of Surface Fluxes from Component Models in Global Coupled Models  

Science Conference Proceedings (OSTI)

The present generation of global coupled ocean–atmosphere GCMs contains considerable systematic errors both in terms of net surface heat flux and simulated SSTs. Here, a global coupled GCM is used to illustrate how systematic errors in the ...

Gerald A. Meehl

1997-11-01T23:59:59.000Z

13

Distributed Ocean–Atmosphere Modeling and Sensitivity to the Coupling Flux Precision: The CATHODe Project  

Science Conference Proceedings (OSTI)

The authors present the distribution of a coupled ocean–atmosphere global circulation model. The atmospheric (ARPEGE) and the oceanic (OPA) components run separately at different sites; the coupling is achieved through the exchanges of fluxes via ...

C. Cassou; P. Noyret; E. Sevault; O. Thual; L. Terray; D. Beaucourt; M. Imbard

1998-04-01T23:59:59.000Z

14

Machining  

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

laboratory equipment. Machinery includes live spindle tooling lathes, CNC lathes, CNC milling machines, wire-cut EDMs, a high-speed machining center and a CNC four-axis EDM...

15

Freshwater Flux (FWF)-Induced Oceanic Feedback in a Hybrid Coupled Model of the Tropical Pacific  

Science Conference Proceedings (OSTI)

The impacts of freshwater flux (FWF) forcing on interannual variability in the tropical Pacific climate system are investigated using a hybrid coupled model (HCM), constructed from an oceanic general circulation model (OGCM) and a simplified ...

Rong-Hua Zhang; Antonio J. Busalacchi

2009-02-01T23:59:59.000Z

16

Interannual Biases Induced by Freshwater Flux and Coupled Feedback in the Tropical Pacific  

Science Conference Proceedings (OSTI)

Freshwater flux (FWF) forcing–induced feedback has not been represented adequately in many coupled ocean–atmosphere models of the tropical Pacific. Previously, various approximations have been made in representing the FWF forcing in climate ...

Rong-Hua Zhang; Guihua Wang; Dake Chen; A. J. Busalacchi; E. C. Hackert

2010-05-01T23:59:59.000Z

17

Coupling of the Radiative, Convective, and Surface Fluxes over the Equatorial Pacific  

Science Conference Proceedings (OSTI)

An idealized energy-balance model for a closed circulation is first presented to illustrate the coupling between the net tropospheric radiative cooling, the surface fluxes and the mean subsidence away from the precipitation zones. Then a one-...

A. K. Betts; W. Ridgway

1988-02-01T23:59:59.000Z

18

Surface Ocean Fluxes and Water-Mass Transformation Rates in the Coupled NCAR Climate System Model  

Science Conference Proceedings (OSTI)

The global distributions of the air–sea fluxes of heat and freshwater and water mass transformation rates from a control integration of the coupled National Center for Atmospheric Research (NCAR) Climate System Model (CSM) are compared with ...

Scott C. Doney; William G. Large; Frank O. Bryan

1998-06-01T23:59:59.000Z

19

An Air–Soil Layer Coupled Scheme for Computing Surface Heat Fluxes  

Science Conference Proceedings (OSTI)

An air–soil layer coupled scheme is developed to compute surface fluxes of sensible heat and latent heat from data collected at the Oklahoma Atmospheric Radiation Measurement–Cloud and Radiation Testbed (ARM–CART) stations. This new scheme ...

Qin Xu; Binbin Zhou; Stephen D. Burk; Edward H. Barker

1999-02-01T23:59:59.000Z

20

Capacitively coupled RF voltage probe having optimized flux linkage  

DOE Patents (OSTI)

An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

Moore, James A. (Powell, TN); Sparks, Dennis O. (Maryville, TN)

1999-02-02T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Surface Energy Fluxes and Coupled Variability in the Tropics of a Coupled General Circulation Model  

Science Conference Proceedings (OSTI)

The effect of wind-evaporative feedbacks upon ENSO, and the coupling of Pacific and Indian Ocean variability, is considered based upon a 110-yr simulation from a coupled ocean and atmosphere general circulation model.

R. L. Miller; X. Jiang

1996-07-01T23:59:59.000Z

22

A hierarchical framework for coupling surface fluxes to atompsheric general circulation models: The homogeneity test  

SciTech Connect

The atmosphere and the biosphere are inherently coupled to one another. Atmospheric surface state variables such as temperature, winds, water vapor, precipitation, and radiation control biophysical, biogeochemical, and ecological processes at the surface and subsurface. At the same time, surface fluxes of momentum, moisture, heat, and trace gases act as time-dependent boundary conditions providing feedback on atmospheric processes. To understand such phenomena, a coupled set of interactive models is required. Costs are still prohibitive for computing surface/subsurface fluxes directly for medium-resolution atmospheric general circulation models (AGCMs), but a technique has been developed for testing large-scale homogeneity and accessing surface parameterizations and models to reduce this computational cost and maintain accuracy. This modeling system potentially bridges the observed spatial and temporal ranges yet allows the incorporation of necessary details about individual ecological community types or biomes and simulates the net momentum, heat, moisture, and trace gas fluxes. This suite of coupled models is defined here as the hierarchical systems flux scheme (HSFS).

Miller, N.L.

1993-01-01T23:59:59.000Z

23

Flux  

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

5000 5000 6000 7000 8000 Wavelength (Angstroms) Flux (in arbitrary units) SN 1990N SN 1989B SN 1993O SN 1981B SN 1994D SN 1997ap Iron Peak Blends Ca II Si II & Co II Fe II & III Day -7 Day -5 Day -4 Day -2 ± 2 Day 0 Day +2 * -50 0 50 100 150 Observed days from peak Observed I magnitude 27 26 25 24 23 Observed R magnitude 27 26 25 24 Observed I magnitude 27 26 25 24 23 R band Ground-based I band HST I band (b) (c) (a) Pre-SN observation 3.5 4.0 4.5 5.0 5.5 log(cz) 14 16 18 20 22 24 26 effective m B 0.02 0.05 0.1 0.2 0.5 1.0 redshift z Hamuy et al (A.J. 1996) Supernova Cosmology Project 6 8 % 9 0 % 0.5 1.0 1.5 2.0 2.5 3.0 ! M Age < 9.6 Gyr (H = 50 km s -1 Mpc -1 ) No Big Bang 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 ! " z ~ 0 . 4 z = 0 . 8 3 6 8 % 9 0 % 0.5 1.0 1.5 2.0 2.5 3.0 ! M Age < 9.6 Gyr (H=50 km/s/Mpc)

24

A Local Incident Flux Response Expansion Transport Method for Coupling to the Diffusion Method in Cylindrical Geometry  

SciTech Connect

A local incident flux response expansion transport method is developed to generate transport solutions for coupling to diffusion theory codes regardless of their solution method (e.g., fine mesh, nodal, response based, finite element, etc.) for reactor core calculations in both two-dimensional (2-D) and three-dimensional (3-D) cylindrical geometries. In this approach, a Monte Carlo method is first used to precompute the local transport solution (i.e., response function library) for each unique transport coarse node, in which diffusion theory is not valid due to strong transport effects. The response function library is then used to iteratively determine the albedo coefficients on the diffusion-transport interfaces, which are then used as the coupling parameters within the diffusion code. This interface coupling technique allows a seamless integration of the transport and diffusion methods. The new method retains the detailed heterogeneity of the transport nodes and naturally constructs any local solution within them by a simple superposition of local responses to all incoming fluxes from the contiguous coarse nodes. A new technique is also developed for coupling to fine-mesh diffusion methods/codes. The local transport method/module is tested in 2-D and 3-D pebble-bed reactor benchmark problems consisting of an inner reflector, an annular fuel region, and a controlled outer reflector. It is found that the results predicted by the transport module agree very well with the reference fluxes calculated directly by MCNP in both benchmark problems.

Dingkang Zhang; Farzad Rahnema; Abderrafi M. Ougouag

2013-09-01T23:59:59.000Z

25

Surface Meteorology and Air-Sea Fluxes in the Western Equatorial Pacific Warm Pool during the TOGA Coupled Ocean-Atmosphere Response Experiment  

Science Conference Proceedings (OSTI)

A major goal of the Coupled Ocean-Atmosphere Response Experiment (COARE) was to achieve significantly more accurate and complete descriptions of the surface meteorology and air-sea fluxes in the western equatorial warm pool region. Time series of ...

R. A. Weller; S. P. Anderson

1996-08-01T23:59:59.000Z

26

The Interface or Air–Sea Flux Component of the TOGA Coupled Ocean–Atmosphere Response Experiment and Its Impact on Subsequent Air–Sea Interaction Studies  

Science Conference Proceedings (OSTI)

The interface or air–sea flux component of the Coupled Ocean–Atmosphere Response Experiment (COARE) of the Tropical Ocean Global Atmosphere (TOGA) research program and its subsequent impact on studies of air–sea interaction are described. The ...

Robert A. Weller; Frank Bradley; Roger Lukas

2004-02-01T23:59:59.000Z

27

Adjusting to policy expectations in climate change modeling : an interdiciplinary study of flux adjustments in coupled atmosphere-ocean general circulation models  

E-Print Network (OSTI)

This paper surveys and interprets the attitudes of scientists to the use of flux adjustments in climate projections with coupled Atmosphere Ocean General Circulation Models. The survey is based largely on the responses of ...

Shackley, Simon.; Risbey, James; Stone, Peter H.; Wynne, Brian

28

A global coupled Eulerian-Lagrangian model and 1 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations  

Science Conference Proceedings (OSTI)

Abstract. We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high spatial resolution. The simulations presented in this study were performed using the Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA), comprising a Lagrangian particle dispersion model coupled to a global atmospheric tracer transport model with prescribed global surface CO2 flux maps at a 1 1 km resolution. The surface fluxes used in the simulations were prepared by assembling the individual components of terrestrial, oceanic and fossil fuel CO2 fluxes. This experimental setup (i.e. a transport model running at a medium resolution, coupled to a high-resolution Lagrangian particle dispersion model together with global surface fluxes at a very high resolution), which was designed to represent high-frequency variations in atmospheric CO2 concentration, has not been reported at a global scale previously. Two sensitivity experiments were performed: (a) using the global transport model without coupling to the Lagrangian dispersion model, and (b) using the coupled model with a reduced resolution of surface fluxes, in order to evaluate the performance of Eulerian-Lagrangian coupling and the role of high-resolution fluxes in simulating high-frequency variations in atmospheric CO2 concentrations. A correlation analysis between observed and simulated atmospheric CO2 concentrations at selected locations revealed that the inclusion of both Eulerian-Lagrangian coupling and highresolution fluxes improves the high-frequency simulations of the model. The results highlight the potential of a coupled Eulerian-Lagrangian model in simulating high-frequency atmospheric CO2 concentrations at many locations worldwide. The model performs well in representing observations of atmospheric CO2 concentrations at high spatial and temporal resolutions, especially for coastal sites and sites located close to sources of large anthropogenic emissions. While this study focused on simulations of CO2 concentrations, the model could be used for other atmospheric compounds with known estimated emissions.

Ganshin, A [Central Aerological Observatory; Oda, T [National Institute for Environmental Studies, Japan; Saito, M [National Institute for Environmental Studies, Japan; Maksyutov, S [National Institute for Environmental Studies, Japan; Valsala, V [National Institute for Environmental Studies, Japan; Andres, Robert Joseph [ORNL; Fischer, R [University of London; Lowry, D [University of London; Lukyanov, A [Central Aerological Observatory; Matsueda, H [Meteorological Research Institute, Japan; Nisbet, E [University of London; Rigby, M [University of Bristol, UK; Sawa, Y [Meteorological Research Institute, Japan; Toumi, R [Imperial College, London; Tsuboi, K [Meteorological Research Institute, Japan; Varlagin, A [A.N. Severtsov Institute of Ecology and Evolution, Russia; Zhuravlev, R [Central Aerological Observatory

2012-01-01T23:59:59.000Z

29

Flux Replacement as a Method to Diagnose Coupled Land–Atmosphere Model Feedback  

Science Conference Proceedings (OSTI)

The potential role of the land surface state in improving predictions of seasonal climate is investigated with a coupled land–atmosphere climate model. Climate simulations for 18 boreal-summer seasons (1982–99) have been conducted with specified ...

Paul A. Dirmeyer; Mei Zhao

2004-12-01T23:59:59.000Z

30

Finite Element Solution of the Self-Adjoint Angular Flux Equation for Coupled Electron-Photon Transport  

SciTech Connect

A novel approach is proposed for charged particle transport calculations using a recently developed second-order, self-adjoint angular flux (SAAF) form of the Boltzmann transport equation with continuous slowing-down. A finite element discretization that is linear continuous in space and linear discontinuous (LD) in energy is described and implemented in a one-dimensional, planar geometry, multigroup, discrete ordinates code for charged particle transport. The cross-section generating code CEPXS is used to generate the electron and photon transport cross sections employed in this code. The discrete ordinates SAAF transport equation is solved using source iteration in conjunction with an inner iteration acceleration scheme and an outer iteration acceleration scheme. Outer iterations are required with the LD energy discretization scheme because the two angular flux unknowns within each group are coupled, which gives rise to effective upscattering. The inner iteration convergence is accelerated using diffusion synthetic acceleration, and the outer iteration convergence is accelerated using a diamond difference approximation to the LD energy discretization. Computational results are given that demonstrate the effectiveness of our convergence acceleration schemes and the accuracy of our discretized SAAF equation.

Liscum-Powell, Jennifer L. [Sandia National Laboratories (United States); Prinja, Anil B. [University of New Mexico (United States); Morel, Jim E. [Los Alamos National Laboratory (United States); Lorence, Leonard J Jr. [Sandia National Laboratories (United States)

2002-11-15T23:59:59.000Z

31

COUPLING  

DOE Patents (OSTI)

This patent relates to a releasable coupling connecting a control rod to a control rod drive. This remotely operable coupling mechanism can connect two elements which are laterally and angviarly misaligned, and provides a means for sensing the locked condition of the elements. The coupling utilizes a spherical bayonet joint which is locked against rotation by a ball detent lock. (AEC)

Hawke, B.C.

1963-02-26T23:59:59.000Z

32

Observation of Higher-Order Sideband Transitions and First-Order Sideband Rabi Oscillations in a Superconducting Flux Qubit Coupled to a SQUID Plasma Mode  

E-Print Network (OSTI)

We report results of spectroscopic measurements and time-domain measurements of a superconducting flux qubit. The dc superconducting quantum interference device (SQUID), used for readout of the qubit, and a shunt capacitor formed an LC resonator generating a SQUID plasma mode. Higher-order red and blue sidebands were observed in a simple measurement scheme because the resonant energy of the resonator, 600 MHz, was comparable to the thermal energy. We also observed Rabi oscillations on the carrier transition and the first-order sideband transitions. Because the qubit was coupled to a single arm of the dc SQUID, the qubit-SQUID coupling was significant at zero bias current, where these phenomena were observed. The ratios between the Rabi periods for the carrier transition and the sideband transitions are compared with those estimated from the coupling constant, which was separately determined. The result may be explained by assuming initial excitation of the resonator.

Yoshihiro Shimazu; Masaki Takahashi; Natsuki Okamura

2013-05-27T23:59:59.000Z

33

Effect of Short-Term Solar Ultraviolet Flux Variability in a Coupled Model of Photochemistry and Dynamics  

Science Conference Proceedings (OSTI)

Variability in the solar ultraviolet radiative flux is known to cause changes in the chemistry and dynamics of the middle and upper atmosphere. Specifically, the 27-day solar rotation signal in irradiance has been correlated with responses in ...

Xun Zhu; Jeng-Hwa Yee; Elsayed R. Talaat

2003-02-01T23:59:59.000Z

34

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models  

Science Conference Proceedings (OSTI)

A new dataset synthesizes in situ and remote sensing observations from research ships deployed to the southeastern tropical Pacific stratocumulus region for 7 years in boreal fall. Surface meteorology, turbulent and radiative fluxes, aerosols, ...

Simon P. de Szoeke; Christopher W. Fairall; Daniel E. Wolfe; Ludovic Bariteau; Paquita Zuidema

2010-08-01T23:59:59.000Z

35

Evaluation of performance and magnetic characteristics of a radial-radial flux compound-structure permanent-magnet synchronous machine used for hybrid electric vehicle  

Science Conference Proceedings (OSTI)

A breed of compound-structure permanent-magnet synchronous machine (CS-PMSM) is used for power-split hybrid electric vehicles(HEVs). It can help to fulfill both the speed and torque control of the internal combustion engine and

Ping Zheng; Ranran Liu; Lin Shen; Lina Li; Weiguang Fan; Qian Wu; Jing Zhao

2008-01-01T23:59:59.000Z

36

Statistics of the Air-Sea Fluxes of Momentum and Mechanical Energy in a Coupled Wave-Atmosphere Model  

Science Conference Proceedings (OSTI)

An atmospheric general circulation model (GCM) and a wind wave model are coupled through the wind stress. The wind stress which forces the wave model, depends in the coupled model on the stage of development of the wave field. As the waves depend ...

Susanne L. Weber

1994-06-01T23:59:59.000Z

37

Modeling and Scaling Coupled Energy, Water, and Carbon Fluxes Based on Remote Sensing: An Application to Canada’s Landmass  

Science Conference Proceedings (OSTI)

Land surface models (LSMs) need to be coupled with atmospheric general circulation models (GCMs) to adequately simulate the exchanges of energy, water, and carbon between the atmosphere and terrestrial surfaces. The heterogeneity of the land ...

Baozhang Chen; Jing M. Chen; Gang Mo; Chiu-Wai Yuen; Hank Margolis; Kaz Higuchi; Douglas Chan

2007-04-01T23:59:59.000Z

38

Simplified Hybrid-Secondary Uncluttered Machine And Method  

DOE Patents (OSTI)

An electric machine (40, 40') has a stator (43) and a rotor (46) and a primary air gap (48) has secondary coils (47c, 47d) separated from the rotor (46) by a secondary air gap (49) so as to induce a slip current in the secondary coils (47c, 47d). The rotor (46, 76) has magnetic brushes (A, B, C, D) or wires (80) which couple flux in through the rotor (46) to the secondary coils (47c, 47d) without inducing a current in the rotor (46) and without coupling a stator rotational energy component to the secondary coils (47c, 47d). The machine can be operated as a motor or a generator in multi-phase or single-phase embodiments. A method of providing a slip energy controller is also disclosed.

Hsu, John S [Oak Ridge, TN

2005-05-10T23:59:59.000Z

39

Electric machine  

SciTech Connect

An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

2012-07-17T23:59:59.000Z

40

Meso-machining  

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

following meso-machin- ing technologies: * Focused ion beam (FIB) machining, * Micro-milling and -turning, * Femto-second laser machining * Micro-Electro Discharge Machining...

Note: This page contains sample records for the topic "flux coupling machines" 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

Substantially Parallel Flux Uncluttered Rotor Machines (U-Machine ...  

Vehicles and Fuels Industrial Technologies Hydropower ... Auto manufacturers; Industrial motor/generator manufacturers; Patents and Patent Applications. ID Number.

42

Machine therapy  

E-Print Network (OSTI)

Machine Therapy is a new practice combining art, design, psychoanalysis, and engineering work in ways that access and reveal the vital, though often unnoticed, relevance of people's interactions and relationships with ...

Dobson, Kelly E. (Kelly Elizabeth), 1970-

2007-01-01T23:59:59.000Z

43

SUBSTANTIALLY PARALLEL FLUX UNCLUTTERED ROTOR MACHINES ...  

The system can be used either as a motor or a generator: Inventors: Hsu, John S. (Oak Ridge, TN) Application Number: 12/ 466,169: Filed: May 14, 2009: Government ...

44

Spectroscopy on Two Coupled Superconducting Flux Qubits J. B. Majer,* F. G. Paauw, A. C. J. ter Haar, C. J. P. M. Harmans, and J. E. Mooij  

E-Print Network (OSTI)

circulating currents. The circulating current of the qubit generates a magnetic field into j#i or out of j the circulating current and the flux applied to the qubit. Because of the large charging energy EC e2 =2C that a current in qubit 2 will change the flux in qubit 1 with 1 MIp;2. Thereby it increases or decreases

45

Induction machine  

DOE Patents (OSTI)

A polyphase rotary induction machine for use as a motor or generator utilizing a single rotor assembly having two series connected sets of rotor windings, a first stator winding disposed around the first rotor winding and means for controlling the current induced in one set of the rotor windings compared to the current induced in the other set of the rotor windings. The rotor windings may be wound rotor windings or squirrel cage windings.

Owen, Whitney H. (Ogden, UT)

1980-01-01T23:59:59.000Z

46

Nontraditional Machining of Dies and Molds  

Science Conference Proceedings (OSTI)

...instability (Ref 9, 10). When coupled with ultrafast controllers operating on 2 μs control loops and glass scales to directly measure the motion of the machines axes, linear motors enable EDM machines to react to process instabilities quickly, leading to increased process speed and decreased risk of...

47

Hybrid-secondary uncluttered permanent magnet machine and ...  

An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a ...

48

Accelerating Turing Machines  

Science Conference Proceedings (OSTI)

Accelerating Turing machines are Turing machines of a sort able to perform tasks that are commonly regarded as impossible for Turing machines. For example, they can determine whether or not the decimal representation of ? contains n consecutive 7s, ... Keywords: ?-machine, Chinese room argument, Church–Turing thesis, accelerating Turing machine, decision problem, effective procedure, halting problem, hypercomputation, hypercomputer, infinity machine, oracle machine, super-task

B. Jack Copeland

2002-05-01T23:59:59.000Z

49

Estimation of synchronous machine parameters by standstill tests  

Science Conference Proceedings (OSTI)

In this paper we present the results of a time-domain identification procedure to estimate the linear parameters of a salient-pole synchronous machine at standstill. A new approach is proposed for the estimation of synchronous machine coupled to DC-chopper ... Keywords: Parameter estimation, Standstill tests, Synchronous machine

M. Hasni; O. Touhami; R. Ibtiouen; M. Fadel; S. Caux

2010-10-01T23:59:59.000Z

50

Machine Tool Locator  

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

gathered and used to set the position of the machine tool and to measure the size and shape of the machine tool tip, and examine cutting edge wear. April 18, 2013 machine tool...

51

Socially guided machine learning  

E-Print Network (OSTI)

Social interaction will be key to enabling robots and machines in general to learn new tasks from ordinary people (not experts in robotics or machine learning). Everyday people who need to teach their machines new things ...

Thomaz, Andrea Lockerd

2006-01-01T23:59:59.000Z

52

Machines reviving humans  

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

The machines you may be referring to include machines to electrically stimulate the heart into again having a normal sequence of electrical impulses necessary for sustained...

53

Electric machine for hybrid motor vehicle  

DOE Patents (OSTI)

A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet rotor, an uncluttered rotor spaced from the permanent magnet rotor, and at least one secondary core assembly. The power system also has a gearing arrangement for coupling the internal combustion engine to wheels on the vehicle thereby providing a means for the electric machine to both power assist and brake in relation to the output of the internal combustion engine.

Hsu, John Sheungchun (Oak Ridge, TN)

2007-09-18T23:59:59.000Z

54

A dual-channel flux-switching permanent magnet motor for hybrid electric vehicles  

Science Conference Proceedings (OSTI)

The flux-switching permanent magnet (FSPM) motor is a relatively novel brushless machine having both magnets and concentrated windings in the stator

Wei Hua; Zhongze Wu; Ming Cheng; Baoan Wang; Jianzhong Zhang; Shigui Zhou

2012-01-01T23:59:59.000Z

55

Flux lattices reformulated  

E-Print Network (OSTI)

We theoretically explore the optical flux lattices produced for ultra-cold atoms subject to laser fields where both the atom-light coupling and the effective detuning are spatially periodic. We analyze the geometric vector potential and the magnetic flux it generates, as well as the accompanying geometric scalar potential. We show how to understand the gauge-dependent Aharonov-Bohm singularities in the vector potential, and calculate the continuous magnetic flux through the elementary cell in terms of these singularities. The analysis is illustrated with a square optical flux lattice. We conclude with an explicit laser configuration yielding such a lattice using a set of five properly chosen beams with two counterpropagating pairs (one along the x axes and the other y axes), together with a single beam along the z axis. We show that this lattice is not phase-stable, and identify the one phase-difference that affects the magnetic flux. Thus armed with realistic laser setup, we directly compute the Chern number...

Juzeli?nas, G

2012-01-01T23:59:59.000Z

56

Vehicle Technologies Office: Electrical Machines  

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

Electrical Machines to Electrical Machines to someone by E-mail Share Vehicle Technologies Office: Electrical Machines on Facebook Tweet about Vehicle Technologies Office: Electrical Machines on Twitter Bookmark Vehicle Technologies Office: Electrical Machines on Google Bookmark Vehicle Technologies Office: Electrical Machines on Delicious Rank Vehicle Technologies Office: Electrical Machines on Digg Find More places to share Vehicle Technologies Office: Electrical Machines on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Electrical Machines Emphasis in the electrical machines activity is on advanced motor

57

Unsteady momentum fluxes in two-phase flow and the vibration of nuclear reactor components  

E-Print Network (OSTI)

The steady and unsteady components of the momentum flux in a twophase flow have been measured at the exit of a vertical pipe. Measured momentum flux data has been machine processed by standard random vibration techniques ...

Yih, Tien Sieh

1968-01-01T23:59:59.000Z

58

A micro-machined resonator  

DOE Patents (OSTI)

This invention is comprised of a micro-machined resonator, typically quartz, with upper and lower micromachinable support members, or covers, having etched wells which may be lined with conductive electrode material, between the support members is a quartz resonator having an energy trapping quartz mesa capacitively coupled to the electrodes through a diaphragm; the quartz resonator is supported by either micro-machined cantilever springs or by thin layers extending over the surfaces of the support. If the diaphragm is rigid, clock applications are available, and if the diaphragm is resilient, then transducer applications can be achieved. Either the thin support layers or the conductive electrode material can be integral with the diaphragm. In any event, the covers are bonded to form a hermetic seal and the interior volume may be filled with a gas or may be evacuated. In addition, one or both of the covers may include oscillator and interface circuitry for the resonator.

Godshall, N.A.; Koehler, D.R.; Liang, A.Y.; Smith, B.K.

1991-12-31T23:59:59.000Z

59

Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-shape Interior PM  

E-Print Network (OSTI)

on torque and Flux weakening region of V-shape IPM machine from TOYOTA PRIUS type, more specifically number on the machine characteristics, PRIUS structure is transformed into 5-phase machine of the same which have the same type and dimensions of TOYOTA PRIUS machine [6], but they differ in the phase number

Paris-Sud XI, Université de

60

Stability-Dependent Exchange Coefficients for Air–Sea Fluxes  

Science Conference Proceedings (OSTI)

This study introduces exchange coefficients for wind stress (CD), latent heat flux (CL), and sensible heat flux (CS) over the global ocean. They are obtained from the state-of-the-art Coupled Ocean–Atmosphere Response Experiment (COARE) bulk ...

A. Birol Kara; Harley E. Hurlburt; Alan J. Wallcraft

2005-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

finite state machine  

Science Conference Proceedings (OSTI)

... Moore machine), multiple start states, transitions conditioned on no input symbol (a null) or more than one transition for a given symbol and state ( ...

2013-11-08T23:59:59.000Z

62

Computing Surface Fluxes from Mesonet Data  

Science Conference Proceedings (OSTI)

By using air–vegetation–soil layer coupled model equations as weak constraints, a variational method is developed to compute sensible and latent heat fluxes from conventional observations obtained at meteorological surface stations. This method ...

Binbin Zhou; Qin Xu

1999-09-01T23:59:59.000Z

63

Elements for the design of precision machine tools and their application to a prototype 450mm Si-wafer grinder  

E-Print Network (OSTI)

Next generation precision machines will require ever more rigid elements to achieve the required machining tolerances. The presented work focuses on the application of ultra stiff servo-controllable kinematic couplings and ...

Rothenhöfer, Gerald S. (Gerald Sven)

2010-01-01T23:59:59.000Z

64

Stirling machine operating experience  

Science Conference Proceedings (OSTI)

Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

1994-09-01T23:59:59.000Z

65

Original article: Bi-criteria optimization design of an interior permanent magnet synchronous machine for a hybrid electric vehicle application  

Science Conference Proceedings (OSTI)

The main focus of this study is to provide a new calculation method of power losses in electrical machine, including copper losses and iron losses at load. This calculation is applied not only for an operating point of the machine but also for thousands ... Keywords: Flux-weakening, Hybrid electric vehicle, Iron loss, Optimization design, Permanent magnet synchronous machine

Phi Hung Nguyen, Emmanuel Hoang, Mohamed Gabsi

2013-04-01T23:59:59.000Z

66

Micro rotary machine and methods for using same  

SciTech Connect

A micro rotary machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft comprises a horizontal shaft and is operable to be rotated by the micro actuator. A micro tool is coupled to the micro shaft and is operable to perform work in response to motion of the micro shaft.

Stalford, Harold L. (Norman, OK)

2012-04-17T23:59:59.000Z

67

Vehicle Technologies Office: Electrical Machines  

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

Electrical Machines Emphasis in the electrical machines activity is on advanced motor technologies, performance, low-cost materials, and thermal control systems that will yield...

68

Human-machine interactions  

DOE Patents (OSTI)

Digital technology utilizing a cognitive model based on human naturalistic decision-making processes, including pattern recognition and episodic memory, can reduce the dependency of human-machine interactions on the abilities of a human user and can enable a machine to more closely emulate human-like responses. Such a cognitive model can enable digital technology to use cognitive capacities fundamental to human-like communication and cooperation to interact with humans.

Forsythe, J. Chris (Sandia Park, NM); Xavier, Patrick G. (Albuquerque, NM); Abbott, Robert G. (Albuquerque, NM); Brannon, Nathan G. (Albuquerque, NM); Bernard, Michael L. (Tijeras, NM); Speed, Ann E. (Albuquerque, NM)

2009-04-28T23:59:59.000Z

69

Turbulent Fluxes in the Hurricane Boundary Layer. Part II: Latent Heat Flux  

Science Conference Proceedings (OSTI)

As part of the recent ONR-sponsored Coupled Boundary Layer Air–Sea Transfer (CBLAST) Departmental Research Initiative, an aircraft was instrumented to carry out direct turbulent flux measurements in the high wind boundary layer of a hurricane. ...

William M. Drennan; Jun A. Zhang; Jeffrey R. French; Cyril McCormick; Peter G. Black

2007-04-01T23:59:59.000Z

70

Micro-machined resonator oscillator  

DOE Patents (OSTI)

A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a telemetered sensor beacon'' that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20--100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available. 21 figs.

Koehler, D.R.; Sniegowski, J.J.; Bivens, H.M.; Wessendorf, K.O.

1994-08-16T23:59:59.000Z

71

Micro-machined resonator oscillator  

DOE Patents (OSTI)

A micro-miniature resonator-oscillator is disclosed. Due to the miniaturization of the resonator-oscillator, oscillation frequencies of one MHz and higher are utilized. A thickness-mode quartz resonator housed in a micro-machined silicon package and operated as a "telemetered sensor beacon" that is, a digital, self-powered, remote, parameter measuring-transmitter in the FM-band. The resonator design uses trapped energy principles and temperature dependence methodology through crystal orientation control, with operation in the 20-100 MHz range. High volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Unique design features include squeeze-film damping for robust vibration and shock performance, capacitive coupling through micro-machined diaphragms allowing resonator excitation at the package exterior, circuit integration and extremely small (0.1 in. square) dimensioning. A family of micro-miniature sensor beacons is also disclosed with widespread applications as bio-medical sensors, vehicle status monitors and high-volume animal identification and health sensors. The sensor family allows measurement of temperatures, chemicals, acceleration and pressure. A microphone and clock realization is also available.

Koehler, Dale R. (Albuquerque, NM); Sniegowski, Jeffry J. (Albuquerque, NM); Bivens, Hugh M. (Albuquerque, NM); Wessendorf, Kurt O. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

72

New Idea for Hydraulic Testing Machine with Stress and Strain Rates Controlled and its Realization  

Science Conference Proceedings (OSTI)

Based on the relationship between pressure and flux of thin-walled hole, a new idea is proposed for hydraulic testing machine. Using transducer and computer technique, hydraulic system is formed by SCM(single chip micyoco), needle valve, frequency converter ... Keywords: testing machine, stress rate, strain rate, needle valves

Du Jingqing; Gao Shiqiao; Niu Shaohua

2010-05-01T23:59:59.000Z

73

Fast flux locked loop  

DOE Patents (OSTI)

A flux locked loop for providing an electrical feedback signal, the flux locked loop employing radio-frequency components and technology to extend the flux modulation frequency and tracking loop bandwidth. The flux locked loop of the present invention has particularly useful application in read-out electronics for DC SQUID magnetic measurement systems, in which case the electrical signal output by the flux locked loop represents an unknown magnetic flux applied to the DC SQUID.

Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Independence, MO)

2002-09-10T23:59:59.000Z

74

An Assessment of the Uncertainties in Ocean Surface Turbulent Fluxes in 11 Reanalysis, Satellite-Derived, and Combined Global Datasets  

Science Conference Proceedings (OSTI)

Ocean surface turbulent fluxes play an important role in the energy and water cycles of the atmosphere–ocean coupled system, and several flux products have become available in recent years. Here, turbulent fluxes from 6 widely used reanalyses, 4 ...

Michael A. Brunke; Zhuo Wang; Xubin Zeng; Michael Bosilovich; Chung-Lin Shie

2011-11-01T23:59:59.000Z

75

System and method for cooling a superconducting rotary machine  

Science Conference Proceedings (OSTI)

A system for cooling a superconducting rotary machine includes a plurality of sealed siphon tubes disposed in balanced locations around a rotor adjacent to a superconducting coil. Each of the sealed siphon tubes includes a tubular body and a heat transfer medium disposed in the tubular body that undergoes a phase change during operation of the machine to extract heat from the superconducting coil. A siphon heat exchanger is thermally coupled to the siphon tubes for extracting heat from the siphon tubes during operation of the machine.

Ackermann, Robert Adolf (Schenectady, NY); Laskaris, Evangelos Trifon (Schenectady, NY); Huang, Xianrui (Clifton Park, NY); Bray, James William (Niskayuna, NY)

2011-08-09T23:59:59.000Z

76

BCDA Machine Status Link  

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

Machine Status Link Machine Status Link Version 1.33 (December 2005) David M. Kline. The Machine Status Link (MSL) is responsible for distributing the digitized beam current, injection status, P0 clock, and other statuses over a single fiber to several locations around the Storage Ring. The MRD100 is a VME-based module that is part of the MSL and was specifically designed for the APS. It receives and interprets information from the XMS100 module by means of copper or fiber. Signals from the XMS100 module are sent at a P0 rate (3.667 microseconds). It sends two registers every cycle and all in about 12 cycles. Refer to the ASD website for additional information regarding the MSL. The focus of this page is to provide information of how to configure the MRD100 for a beamline IOC and to discuss the sample IOC

77

Automated fiber pigtailing machine  

DOE Patents (OSTI)

The Automated Fiber Pigtailing Machine (AFPM) aligns and attaches optical fibers to optoelectronic (OE) devices such as laser diodes, photodiodes, and waveguide devices without operator intervention. The so-called pigtailing process is completed with sub-micron accuracies in less than 3 minutes. The AFPM operates unattended for one hour, is modular in design and is compatible with a mass production manufacturing environment. This machine can be used to build components which are used in military aircraft navigation systems, computer systems, communications systems and in the construction of diagnostics and experimental systems. 26 figs.

Strand, O.T.; Lowry, M.E.

1999-01-05T23:59:59.000Z

78

Operating the Lisp Machine  

E-Print Network (OSTI)

This document is a draft copy of a portion of the Lisp Machine window system manual. It is being published in this form now to make it available, since the complete window system manual is unlikely to be finished in the ...

Moon, David A.

79

Scalable formal machine models  

Science Conference Proceedings (OSTI)

In the past few years, we have seen machine-checked proofs of relatively large software systems, including compilers and micro-kernels. But like all formal arguments, the assurance gained by these mechanical proofs is only as good as the models we construct ...

Greg Morrisett

2012-12-01T23:59:59.000Z

80

Laser machining of explosives  

DOE Patents (OSTI)

The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be achieved with essentially no heat or shock affected zone. In this method, material is removed by a nonthermal mechanism. A combination of multiphoton and collisional ionization creates a critical density plasma in a time scale much shorter than electron kinetic energy is transferred to the lattice. The resulting plasma is far from thermal equilibrium. The material is in essence converted from its initial solid-state directly into a fully ionized plasma on a time scale too short for thermal equilibrium to be established with the lattice. As a result, there is negligible heat conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond a few microns from the laser machined surface. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces. There is no detonation or deflagration of the explosive in the process and the material which is removed is rendered inert.

Perry, Michael D. (Livermore, CA); Stuart, Brent C. (Fremont, CA); Banks, Paul S. (Livermore, CA); Myers, Booth R. (Livermore, CA); Sefcik, Joseph A. (Tracy, CA)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Logically Possible Machines  

Science Conference Proceedings (OSTI)

I use modal logic and transfinite set-theory to define metaphysical foundations for a general theory of computation. A possible universe is a certain kind of situation; a situation is a set of facts. An algorithm is a certain kind of inductively defined ... Keywords: convergence, fixed-point, infinite algorithm, infinite machine, infinite mind, limit, possible world, situation, super-Turing computer

Eric Steinhart

2002-05-01T23:59:59.000Z

82

Control system for an interior permanent magnet synchronous machine  

DOE Patents (OSTI)

A high performance, fully operational, four-quadrant control scheme is used in an interior permanent magnet synchronous machine. The machine operates smoothly with full performance in the constant-torque region as well as in the flux-weakening, constant-power region in both directions of motion. The transition between the constant-torque and constant-power regions is very smooth under all conditions of operation. Control in the constant-torque region is based on a vector or field-oriented technique, with the direct-axis aligned with the total stator flux, whereas constant-power region control is accomplished by orientation of the torque angle of the impressed square-wave voltage through the feedforward vector rotator. In a preferred embodiment, the control system employs a digital distributed microcomputer controller arrangement which relies upon various precisely estimated feedback signals, such as torque, flux, etc. The control scheme includes an outer torque control loop primarily for traction type applications, but also contemplates speed and position control loops for various industrial drives. A 70 hp drive system using a Neodymium-Iron-Boron permanent magnet machine and transistor pulse width modulating inverter has been designed and successfully tested. This control scheme also has application in controlling surface permanent magnet machines. 16 figs.

Bose, B.K.

1988-10-12T23:59:59.000Z

83

Coded output support vector machine  

Science Conference Proceedings (OSTI)

The authors propose a coded output support vector machine (COSVM) by introducing the idea of information coding to solve multi-class classification problems for large-scale datasets. The COSVM is built based on the support vector regression (SVR) machine ... Keywords: coded output, multi-class classification, number system, parallel implementation, support vector machine (SVM)

Tao Ye; Xuefeng Zhu

2012-07-01T23:59:59.000Z

84

Data envelopment analysis classification machine  

Science Conference Proceedings (OSTI)

This paper establishes the equivalent relationship between the data classification machine and the data envelopment analysis (DEA) model, and thus build up a DEA based classification machine. A data is characterized by a set of values. Without loss of ... Keywords: Classification machine, Data envelopment analysis, Preference cone

Hong Yan; Quanling Wei

2011-11-01T23:59:59.000Z

85

Hybrid-secondary uncluttered induction machine  

DOE Patents (OSTI)

An uncluttered secondary induction machine (100) includes an uncluttered rotating transformer (66) which is mounted on the same shaft as the rotor (73) of the induction machine. Current in the rotor (73) is electrically connected to current in the rotor winding (67) of the transformer, which is not electrically connected to, but is magnetically coupled to, a stator secondary winding (40). The stator secondary winding (40) is alternately connected to an effective resistance (41), an AC source inverter (42) or a magnetic switch (43) to provide a cost effective slip-energy-controlled, adjustable speed, induction motor that operates over a wide speed range from below synchronous speed to above synchronous speed based on the AC line frequency fed to the stator.

Hsu, John S. (Oak Ridge, TN)

2001-01-01T23:59:59.000Z

86

Real Time Flux Control in PM Motors  

SciTech Connect

Significant research at the Oak Ridge National Laboratory (ORNL) Power Electronics and Electric Machinery Research Center (PEEMRC) is being conducted to develop ways to increase (1) torque, (2) speed range, and (3) efficiency of traction electric motors for hybrid electric vehicles (HEV) within existing current and voltage bounds. Current is limited by the inverter semiconductor devices' capability and voltage is limited by the stator wire insulation's ability to withstand the maximum back-electromotive force (emf), which occurs at the upper end of the speed range. One research track has been to explore ways to control the path and magnitude of magnetic flux while the motor is operating. The phrase, real time flux control (RTFC), refers to this mode of operation in which system parameters are changed while the motor is operating to improve its performance and speed range. RTFC has potential to meet an increased torque demand by introducing additional flux through the main air gap from an external source. It can augment the speed range by diverting flux away from the main air gap to reduce back-emf at high speeds. Conventional RTFC technology is known as vector control [1]. Vector control decomposes the stator current into two components; one that produces torque and a second that opposes (weakens) the magnetic field generated by the rotor, thereby requiring more overall stator current and reducing the efficiency. Efficiency can be improved by selecting a RTFC method that reduces the back-emf without increasing the average current. This favors methods that use pulse currents or very low currents to achieve field weakening. Foremost in ORNL's effort to develop flux control is the work of J. S. Hsu. Early research [2,3] introduced direct control of air-gap flux in permanent magnet (PM) machines and demonstrated it with a flux-controlled generator. The configuration eliminates the problem of demagnetization because it diverts all the flux from the magnets instead of trying to oppose it. It is robust and could be particularly useful for PM generators and electric vehicle drives. Recent efforts have introduced a brushless machine that transfers a magneto-motive force (MMF) generated by a stationary excitation coil to the rotor [4]. Although a conventional PM machine may be field weakened using vector control, the air-gap flux density cannot be effectively enhanced. In Hsu's new machine, the magnetic field generated by the rotor's PM may be augmented by the field from the stationery excitation coil and channeled with flux guides to its desired destination to enhance the air-gap flux that produces torque. The magnetic field can also be weakened by reversing the current in the stationary excitation winding. A patent for advanced technology in this area is pending. Several additional RTFC methods have been discussed in open literature. These include methods of changing the number of poles by magnetizing and demagnetizing the magnets poles with pulses of current corresponding to direct-axis (d-axis) current of vector control [5,6], changing the number of stator coils [7], and controlling the air gap [8]. Test experience has shown that the magnet strengths may vary and weaken naturally as rotor temperature increases suggesting that careful control of the rotor temperature, which is no easy task, could yield another method of RTFC. The purpose of this report is to (1) examine the interaction of rotor and stator flux with regard to RTFC, (2) review and summarize the status of RTFC technology, and (3) compare and evaluate methods for RTFC with respect to maturity, advantages and limitations, deployment difficulty and relative complexity.

Otaduy, P.J.

2005-09-27T23:59:59.000Z

87

International Business Machines Corporation  

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

Business Machines Corporation Business Machines Corporation Thomas J. Watson Research Center 1101 Kitchawan Road, NY 10598 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave, SW, Washington DC 20585 ATTN: TECHNOLOGY TRANSFER QUESTIONS Sent electronically to GC-62@hq.doe.gov RE: Questions Concerning Technology Transfer Practices at DOE Laboratories Federal Register, Vol. 73, No. 229 Dear Mr. Gottlieb: IBM Corporation appreciates the opportunity to provide comments in response to the Department of Energy notice of inquiry. DOE Laboratories are a fundamental resource to government, industry, academia and the economy as a whole. All can benefit from efficient contracting processes and

88

Control coil arrangement for a rotating machine rotor  

DOE Patents (OSTI)

A rotating machine (e.g., a turbine, motor or generator) is provided wherein a fixed solenoid or other coil configuration is disposed adjacent to one or both ends of the active portion of the machine rotor for producing an axially directed flux in the active portion so as to provide planar axial control at single or multiple locations for rotor balance, levitation, centering, torque and thrust action. Permanent magnets can be used to produce an axial bias magnetic field. The rotor can include magnetic disks disposed in opposed, facing relation to the coil configuration.

Shah, Manoj R. (Latham, NY); Lewandowsk, Chad R. (Amsterdam, NY)

2001-07-31T23:59:59.000Z

89

Control Coil Arrangement for a Rotating Machine Rotor  

DOE Patents (OSTI)

A rotating machine (e.g., a turbine, motor or generator) is provided wherein a fixed solenoid or other coil configuration is disposed adjacent to one or both ends of the active portion of the machine rotor for producing an axially directed flux in the active portion so as to provide planar axial control at single or multiple locations for rotor balance, levitation, centering, torque and thrust action. Permanent magnets can be used to produce an axial bias magnetic field. The rotor can include magnetic disks disposed in opposed, facing relation to the coil configuration.

Shah, Manoj R.; Lewandowski, Chad R.

1999-05-05T23:59:59.000Z

90

Methods, systems and apparatus for synchronous current regulation of a five-phase machine  

DOE Patents (OSTI)

Methods, systems and apparatus are provided for controlling operation of and regulating current provided to a five-phase machine when one or more phases has experienced a fault or has failed. In one implementation, the disclosed embodiments can be used to synchronously regulate current in a vector controlled motor drive system that includes a five-phase AC machine, a five-phase inverter module coupled to the five-phase AC machine, and a synchronous current regulator.

Gallegos-Lopez, Gabriel; Perisic, Milun

2012-10-09T23:59:59.000Z

91

Zero-flux planes, flux reversals and diffusion paths in ternary and quaternary diffusion  

SciTech Connect

During isothermal multicomponent diffusion, interdiffusion fluxes of individual components can go to zero at zero-flux planes (ZFP) and exhibit flux reversals from one side to the other of such planes. Interdiffusion fluxes as well as the locations and compositions of ZFPs for components are determined directly from the concentration profiles of diffusion couples without the need for prior knowledge of interdiffusion coefficients. The development and identification of ZFPs is reviewed with the aid of single phase and two-phase diffusion couples investigated in the Cu-Ni-Zn system at 775/sup 0/C. ZFP locations in the diffusion zone nearly correspond to sections where the activity of a component is the same as its activity in either of the terminal alloys of a couple. Path slopes at ZFPs are uniquely dictated by the atomic mobility and thermodynamic data for the components. Discontinuous flux reversals for the components can also occur at interfaces in multiphase couples. Identification of ZFPs is also presented for diffusion in the Cu-Ni-Zn-Mn quaternary system. Analytical representation of diffusion paths for both ternary and quaternary diffusion couples is presented with the aid of characteristic path parameters.

Dayananda, M.A.

1986-05-23T23:59:59.000Z

92

An Evaluation of Air–Sea Flux Products for ENSO Simulation and Prediction  

Science Conference Proceedings (OSTI)

This paper presents a quantitative methodology for evaluating air–sea fluxes related to ENSO from different atmospheric products. A statistical model of the fluxes from each atmospheric product is coupled to an ocean general circulation model (...

M. J. Harrison; A. Rosati; B. J. Soden; E. Galanti; E. Tziperman

2002-03-01T23:59:59.000Z

93

EV3 : Traction drives and generators A: Electric machine design and optimization 1  

E-Print Network (OSTI)

of Rotor Structure and Number of Phases on First and Second Order Characteristics of TOYOTA PRIUS torque, torque-speed characteristics. I. STUDIED PRIUS MACHINE A. The average torque Taverage (first of PRIUS machine. A methodology consists of coupling between an optimization program of Matlab and the FEM

Paris-Sud XI, Université de

94

ROSSLER NONLINEAR DYNAMICAL MACHINE FOR CRYPTOGRAPHY APPLICATIONS Sunil Pandey  

E-Print Network (OSTI)

of chemical kinetics. The Rossler system is described by a system of 3 coupled nonlinear ordinary differentialROSSLER NONLINEAR DYNAMICAL MACHINE FOR CRYPTOGRAPHY APPLICATIONS Sunil Pandey * M.Tech. (Info Sec Author e-mail: algosunil@yahoo.co.in ABSTRACT In many of the cryptography applications like password

International Association for Cryptologic Research (IACR)

95

Harmonic control of multiple-stator induction machines for voltage regulation  

E-Print Network (OSTI)

Small, one to a few horsepower, three-phase induction machines with three sets of electrically-isolated, magnetically-coupled stator winding circuits are described. A voltage inverter is developed and used to drive one set ...

Holloway, Jack Wade, 1980-

2004-01-01T23:59:59.000Z

96

Geometrical vector flux sinks and ideal flux concentrators  

SciTech Connect

The description of ideal flux concentrators as shapes that do not disturb the geometrical vector flux field is extended to all the known types of ideal flux concentrators. This is accomplished, in part, by the introduction of vector flux sinks.

Greenman, P.

1981-06-01T23:59:59.000Z

97

Machine Learning for Global Optimization  

E-Print Network (OSTI)

approach for global optimization in which machine learning is used to predict ..... In Figure 1 we show the level curves of the 2–dimensional Rastrigin function.

98

Power Electronics and Electric Machines  

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

PEEM Activities Application Power Electronics Electric Machines Traction Drive System Inverter & Boost Converter (if needed) MotorGenerator Vehicle Power Management Bi-directional...

99

Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation  

SciTech Connect

In a conventional permanent magnet (PM) machine, the air-gap flux produced by the PM is fixed. It is difficult to enhance the air-gap flux density due to limitations of the PM in a series-magnetic circuit. However, the air-gap flux density can be weakened by using power electronic field weakening to the limit of demagnetization of the PMs. This paper presents the test results of controlling the PM air-gap flux density through the use of a stationary brushless excitation coil in a reluctance interior permanent magnet with brushless field excitation (RIPM-BFE) motor. Through the use of this technology the air-gap flux density can be either enhanced or weakened. There is no concern with demagnetizing the PMs during field weakening. The leakage flux of the excitation coil through the PMs is blocked. The prototype motor built on this principle confirms the concept of flux enhancement and weakening through the use of excitation coils.

Wiles, R.H.

2005-10-07T23:59:59.000Z

100

Oceanic Heat Flux Calculation  

Science Conference Proceedings (OSTI)

The authors review the procedure for the direct calculation of oceanic heat flux from hydrographic measurements and set out the full “recipe” that is required.

Sheldon Bacon; Nick Fofonoff

1996-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Cleaning of Free Machining Brass  

Science Conference Proceedings (OSTI)

We have investigated four brightening treatments proposed by two cleaning vendors for cleaning free machining brass. The experimental results showed that none of the proposed brightening treatments passed the swipe test. Thus, we maintain the recommendation of not using the brightening process in the cleaning of free machining brass for NIF application.

Shen, T

2005-12-29T23:59:59.000Z

102

Knowledge representation and machine translation  

Science Conference Proceedings (OSTI)

This paper describes a new knowledge representation called "frame knowledge representation-0" (FKR-0), and an experimental machine translation system named ATLAS/I which uses FKR-0.The purpose of FKR-0 is to stored information required for machine translation ...

Susumu Sawai; Hiromichi Fukushima; Masakatsu Sugimoto; Naoya Ukai

1982-07-01T23:59:59.000Z

103

MSc Design of Rotating Machines  

E-Print Network (OSTI)

design management and intellectual skills of communication in a group working environment. Focus on your interests The Machine Design specialism aims to provide students with a greater degree of training of stress analysis, machine dynamics, transmissions, computer aided engineering, and project management

104

A kinematic coupling based 6 degrees of freedom dynamometer  

E-Print Network (OSTI)

A new 6-degree of freedom dynamometer is presented. Six load cells measure the normal forces at the contact points of a three groove kinematic coupling. Three toggle clamps are used to preload the machine, so that it does ...

Moreu Gamazo, Jaime

2009-01-01T23:59:59.000Z

105

Case studies in storage access by loosely coupled petascale applications  

Science Conference Proceedings (OSTI)

A large number of real-world scientific applications can be characterized as loosely coupled: the communication among tasks is infrequent and can be performed by using file operations. While these applications may be ported to large scale machines designed ...

Justin M. Wozniak; Michael Wilde

2009-11-01T23:59:59.000Z

106

Concentration with uniform flux  

SciTech Connect

A modification of a parabolic cylinder concentrator is developed to procedure uniform flux. The controlling surface equation is given. A three-dimensional ray-trace technique is used to obtain the shape of the image at the focal plane of a thin slice of the mirror. Also, the concentration distribution for uniform flux is given. 1 references, 7 figures.

Not Available

1986-01-01T23:59:59.000Z

107

Environmental constituents of Electrical Discharge Machining  

E-Print Network (OSTI)

Electrical Discharge Machining (EDM) is a non-traditional process that uses no mechanical forces to machine metals. It is extremely useful in machining hard materials. With the advantages EDM has to offer and its presence ...

Cho, Margaret H. (Margaret Hyunjoo), 1982-

2004-01-01T23:59:59.000Z

108

Heavy Machine Shop | Central Fabrication Services | Brookhaven...  

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

Heavy Machine Shop Heavy Machine Shop The Heavy Machine Shop facility is located in building 479, and may be accessed by the main door on the north face or front of the building....

109

Rotor apparatus for high strength undiffused brushless electric machine  

DOE Patents (OSTI)

A radial gap brushless electric machine (30) having a stator (31) and a rotor (32) and a main air gap (34) also has at least one stationary excitation coil (35a, 36a) separated from the rotor (32) by a secondary air gap (35e, 35f, 36e, 36f) so as to induce a secondary flux in the rotor (32) which controls a resultant flux in the main air gap (34). Permanent magnetic (PM) material (38) is disposed in spaces between the rotor pole portions (39) to inhibit the second flux from leaking from the pole portions (39) prior to reaching the main air gap (34). By selecting the direction of current in the stationary excitation coil (35a, 36a) both flux enhancement and flux weakening are provided for the main air gap (34). Improvements of a laminated rotor, an end pole structure, and an arrangement of the PM elements for providing an arrangement of the flux paths from the auxiliary field coil assemblies are also disclosed.

Hsu, John S [Oak Ridge, TN

2006-01-24T23:59:59.000Z

110

Turbulent Fluxes in the Hurricane Boundary Layer. Part I: Momentum Flux  

Science Conference Proceedings (OSTI)

An important outcome from the ONR-sponsored Coupled Boundary Layer Air–Sea Transfer (CBLAST) Hurricane Program is the first-ever direct measurements of momentum flux from within hurricane boundary layers. In 2003, a specially instrumented NOAA P3 ...

Jeffrey R. French; William M. Drennan; Jun A. Zhang; Peter G. Black

2007-04-01T23:59:59.000Z

111

Electric Flux Tube in Magnetic Plasma  

E-Print Network (OSTI)

In this paper we study a methodical problem related to the magnetic scenario recently suggested and initiated by the authors \\cite{Liao_ES_mono} to understand the strongly coupled quark-gluon plasma (sQGP): the electric flux tube in monopole plasma. A macroscopic approach, interpolating between Bose condensed (dual superconductor) and classical gas medium is developed first. Then we work out a microscopic approach based on detailed quantum mechanical calculation of the monopole scattering on electric flux tube, evaluating induced currents for all partial waves. As expected, the flux tube looses its stability when particles can penetrate it: we make this condition precise by calculating the critical value for the product of the flux tube size times the particle momentum, above which the flux tube dissolves. Lattice static potentials indicate that flux tubes seem to dissolve at $T>T_{dissolution} \\approx 1.3 T_c$. Using our criterion one gets an estimate of the magnetic density $n\\approx 4.4 \\sim 6.6 fm^{-3}$ a...

Liao Jin Feng

2007-01-01T23:59:59.000Z

112

Machine Learning Benchmarks and Random Forest Regression  

E-Print Network (OSTI)

Machine Learning Benchmarks and Random Forest Regressionerror on a suite of benchmark datasets. As the basethe Machine Learning Benchmark Problems package; see http://

Segal, Mark R

2004-01-01T23:59:59.000Z

113

Free Machining Brasses with Minimized Lead Content  

Science Conference Proceedings (OSTI)

Abstract Scope, Article describes the role of lead in free machining brass and ... Similar legislative acts take care of lead content in free machined brass.

114

Ma'aden Open Mould Casting Machines  

Science Conference Proceedings (OSTI)

The paper will describe Ma'aden experience in ingot casting machines: commissioning and start-up, the challenges faced specially with De-molding machines, ...

115

Optimal Design of Electrical Machines: Mathematical Programming ...  

E-Print Network (OSTI)

for the same problem of the design of an electrical machine without slot. ... tion, inverse problem, design, electrical machine ..... trade-off situation arises.

116

Measurement Science for Smart Machine Tools  

Science Conference Proceedings (OSTI)

... ASME B5.59-2, "Information Technology for Machine Tools—Part 2: Data Specification for Properties of Machine tools for Milling and Turning,"and ...

2012-12-21T23:59:59.000Z

117

Akrong Machine Services | Open Energy Information  

Open Energy Info (EERE)

Machine Services Jump to: navigation, search Name Akron Machine Services Address 17 w. Rosewood Ave Place Akron, Ohio Zip 44301 Sector Carbon Product Manufacturing Phone...

118

Slide system for machine tools  

DOE Patents (OSTI)

The present invention relates to a machine tool which permits the machining of nonaxisymmetric surfaces on a workpiece while rotating the workpiece about a central axis of rotation. The machine tool comprises a conventional two-slide system (X-Y) with one of these slides being provided with a relatively short travel high-speed auxiliary slide which carries the material-removing tool. The auxiliary slide is synchronized with the spindle speed and the position of the other two slides and provides a high-speed reciprocating motion required for the displacement of the cutting tool for generating a nonaxisymmetric surface at a selected location on the workpiece.

Douglass, S.S.; Green, W.L.

1980-06-12T23:59:59.000Z

119

Computing Solar Absolute Fluxes  

E-Print Network (OSTI)

Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes are rarely tested. We can confront observed irradiances with the predictions from model atmospheres for a few stars with accurate angular diameter measurements, notably the Sun. Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances. I provide here a progress report on our current efforts to compute absolute fluxes for solar model photospheres. Uncertainties in the solar composition constitute a significant source of error in computing solar radiative fluxes.

Prieto, Carlos Allende

2007-01-01T23:59:59.000Z

120

Computing Solar Absolute Fluxes  

E-Print Network (OSTI)

Computed color indices and spectral shapes for individual stars are routinely compared with observations for essentially all spectral types, but absolute fluxes are rarely tested. We can confront observed irradiances with the predictions from model atmospheres for a few stars with accurate angular diameter measurements, notably the Sun. Previous calculations have been hampered by inconsistencies and the use of outdated atomic data and abundances. I provide here a progress report on our current efforts to compute absolute fluxes for solar model photospheres. Uncertainties in the solar composition constitute a significant source of error in computing solar radiative fluxes.

Carlos Allende Prieto

2007-09-14T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Recent advances in kernel machines  

Science Conference Proceedings (OSTI)

This talk will review recent advances in the kernel methods focusing on support vector machines (SVM) for pattern recognition. Topics discussed include the kernel design issue through the multi kernel approach and the optimization issue with emphasis ...

Stéphane Canu

2010-11-01T23:59:59.000Z

122

ASC_machines_cielo_2  

National Nuclear Security Administration (NNSA)

ASC 1 Top500 winners ASC supercomputers ASC future supercomputers Leading High-Performance Computing ASCI Red * First sustained teraFLOPS machine * 1 teraFLOPS * 1 TOP500 6...

123

Helix coupling  

DOE Patents (OSTI)

A coupling for connecting helix members in series, which consists of a pair of U-shaped elements, one of which is attached to each helix end with the "U" sections of the elements interlocked. The coupling is particularly beneficial for interconnecting helical Nitinol elements utilized in thermal actuators or engines. Each coupling half is attached to the associated helix at two points, thereby providing axial load while being easily removed from the helix, and reusable.

Ginell, William S. (Encino, CA)

1989-04-25T23:59:59.000Z

124

Tracking heat flux sensors for concentrating solar applications  

DOE Patents (OSTI)

Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.

Andraka, Charles E; Diver, Jr., Richard B

2013-06-11T23:59:59.000Z

125

jSynoPSys -- A Scenario-Based Testing Tool based on the Symbolic Animation of B Machines  

Science Conference Proceedings (OSTI)

This paper presents the jSynoPSys tool that implements the concept of Scenario-Based Testing from B machines. This consists in describing execution scenarios, expressed as regular expressions over the operations of the system, coupled with intermediate ... Keywords: B machines, Test generation, constraint solving, scenario-based testing, symbolic animation

Frédéric Dadeau; Régis Tissot

2009-10-01T23:59:59.000Z

126

Determining Reactor Neutrino Flux  

E-Print Network (OSTI)

Flux is an important source of uncertainties for a reactor neutrino experiment. It is determined from thermal power measurements, reactor core simulation, and knowledge of neutrino spectra of fuel isotopes. Past reactor neutrino experiments have determined the flux to (2-3)% precision. Precision measurements of mixing angle $\\theta_{13}$ by reactor neutrino experiments in the coming years will use near-far detector configurations. Most uncertainties from reactor will be canceled out. Understanding of the correlation of uncertainties is required for $\\theta_{13}$ experiments. Precise determination of reactor neutrino flux will also improve the sensitivity of the non-proliferation monitoring and future reactor experiments. We will discuss the flux calculation and recent progresses.

Cao, Jun

2011-01-01T23:59:59.000Z

127

Determining Reactor Neutrino Flux  

E-Print Network (OSTI)

Flux is an important source of uncertainties for a reactor neutrino experiment. It is determined from thermal power measurements, reactor core simulation, and knowledge of neutrino spectra of fuel isotopes. Past reactor neutrino experiments have determined the flux to (2-3)% precision. Precision measurements of mixing angle $\\theta_{13}$ by reactor neutrino experiments in the coming years will use near-far detector configurations. Most uncertainties from reactor will be canceled out. Understanding of the correlation of uncertainties is required for $\\theta_{13}$ experiments. Precise determination of reactor neutrino flux will also improve the sensitivity of the non-proliferation monitoring and future reactor experiments. We will discuss the flux calculation and recent progresses.

Jun Cao

2011-01-12T23:59:59.000Z

128

Photovoltaic roof heat flux  

E-Print Network (OSTI)

of ~24°C, indicating that heat conduction was small. T h i sday, indicating large heat conduction a n d storage. Control2.1.3 showed that conduction heat flux through the roof was

Samady, Mezhgan Frishta

2011-01-01T23:59:59.000Z

129

Radiator debris removing apparatus and work machine using same  

DOE Patents (OSTI)

A radiator assembly includes a finned radiator core and a debris removing apparatus having a compressed air inlet and at least one compressed air outlet configured to direct compressed air through the radiator core. A work machine such as a wheel loader includes a radiator and a debris removing apparatus coupled with on-board compressed air and having at least one pressurized gas outlet configured to direct a gas toward the face of the radiator.

Martin, Kevin L. (Washburn, IL); Elliott, Dwight E. (Chillicothe, IL)

2008-09-02T23:59:59.000Z

130

Direct Semantics of Extended State Machines  

E-Print Network (OSTI)

In this paper we present semantic profiles for UML 2 state machines, which are based directly upon the structure of a state machine model, without requiring flattening or other transformations on these models. The approach addresses many of the semantic problems identified for state machines, and provides a basis for semantic analysis and proof of behavioural compatibility between state machines. 1

K. Lano; D. Clark

2007-01-01T23:59:59.000Z

131

Optimization Online - Optimal Design of Electrical Machines ...  

E-Print Network (OSTI)

Jun 8, 2011 ... Optimal Design of Electrical Machines: Mathematical Programming ... Science and Engineering (Multidisciplinary Design Optimization ).

132

Alpha Channeling in Mirror Machines  

SciTech Connect

Because of their engineering simplicity, high-?, and steady-state operation, mirror machines and related open-trap machines such as gas dynamic traps, are an attractive concept for achieving controlled nuclear fusion. In these open-trap machines, the confinement occurs by means of magnetic mirroring, without the magnetic field lines closing upon themselves within the region of particle confinement. Unfortunately, these concepts have not achieved to date very spectacular laboratory results, and their reactor prospects are dimmed by the prospect of a low Q-factor, the ratio of fusion power produced to auxiliary power. Nonetheless, because of its engineering promise, over the years numerous improvements have been proposed to enhance the reactor prospects of mirror fusion, such as tandem designs, end-plugging, and electric potential barriers.

Fisch N.J.

2005-10-19T23:59:59.000Z

133

Optical heat flux gauge  

DOE Patents (OSTI)

A heat flux gauge comprising first and second thermographic phosphor layers separated by a layer of a thermal insulator. The gauge may be mounted on a surface with the first thermographic phosphor in contact with the surface. A light source is directed at the gauge, causing the phosphors to luminesce. The luminescence produced by the phosphors is collected and its spectra analyzed in order to determine the heat flux on the surface. First and second phosphor layers must be different materials to assure that the spectral lines collected will be distinguishable. 9 figs.

Noel, B.W.; Borella, H.M.; Cates, M.R.; Turley, W.D.; MacArthur, C.D.; Cala, G.C.

1989-06-07T23:59:59.000Z

134

Cooling system for rotating machine  

Science Conference Proceedings (OSTI)

An electrical machine comprising a rotor is presented. The electrical machine includes the rotor disposed on a rotatable shaft and defining a plurality of radial protrusions extending from the shaft up to a periphery of the rotor. The radial protrusions having cavities define a fluid path. A stationary shaft is disposed concentrically within the rotatable shaft wherein an annular space is formed between the stationary and rotatable shaft. A plurality of magnetic segments is disposed on the radial protrusions and the fluid path from within the stationary shaft into the annular space and extending through the cavities within the radial protrusions.

Gerstler, William Dwight (Niskayuna, NY); El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Lokhandwalla, Murtuza (Clifton Park, NY); Alexander, James Pellegrino (Ballston Lake, NY); Quirion, Owen Scott (Clifton Park, NY); Palafox, Pepe (Schenectady, NY); Shen, Xiaochun (Schenectady, NY); Salasoo, Lembit (Schenectady, NY)

2011-08-09T23:59:59.000Z

135

A New Approach to Abstract Machines - Introduction to the Theory of Configuration Machines  

E-Print Network (OSTI)

An abstract machine is a theoretical model designed to perform a rigorous study of computation. Such a model usually consists of configurations, instructions, programs, inputs and outputs for the machine. In this paper we formalize these notions as a very simple algebraic system, called a configuration machine. If an abstract machine is defined as a configuration machine consisting of primitive recursive functions then the functions computed by the machine are always recursive. The theory of configuration machines provides a useful tool to study universal machines.

Luo, Zhaohua

2010-01-01T23:59:59.000Z

136

Mapping Heat Flux  

Science Conference Proceedings (OSTI)

An infrared camera technique designed for remote sensing of air–water heat flux has been developed. The technique uses the differential absorption of water between 3.817 and 4.514 microns. This difference causes each channel’s radiance to ...

Walt McKeown; Richard Leighton

1999-01-01T23:59:59.000Z

137

Syntactic mismatches in machine translation  

Science Conference Proceedings (OSTI)

This paper addresses one of the central problems arising at the transfer stage in machine translation: syntactic mismatches, that is, mismatches between a source-language sentence structure and its equivalent target-language sentence structure. The level ... Keywords: Deep-syntactic structure, Meaning-Text Theory, Paraphrasing, Syntactic mismatch, Transfer

Igor Mel'?uk; Leo Wanner

2006-06-01T23:59:59.000Z

138

Machinable dissolved metal oxide superconductors  

DOE Patents (OSTI)

Powders of a metal oxide superconductor are mixed with sufficient amount (10--80 mol%) of In, Sn, and/or Al, to become nonbrittle, machinable. Preferred superconductors are YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] and Bi-Sr-Ca-Cu-O compounds.

Chen, Chung-Hsuan.

1991-01-01T23:59:59.000Z

139

Arbitrary norm support vector machines  

Science Conference Proceedings (OSTI)

Support vector machines (SVM) are state-of-the-art classifiers. Typically L2-norm or L1-norm is adopted as a regularization term in SVMs, while other norm-based SVMs, for example, the L0-norm SVM or even the L?-norm ...

Kaizhu Huang; Danian Zheng; Irwin King; Michael R. Lyu

2009-02-01T23:59:59.000Z

140

Machine Shop Investigates PQ Issues  

Science Conference Proceedings (OSTI)

EPRI performed a power quality (PQ) audit to harden a machine shop against PQ-related issues. EPRI engineers investigated the various origins of existing PQ disturbances as well as the susceptibility of the plant equipment to these disturbances. This case study reports the findings of this detailed investigation.

2007-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Polar Warnings A Lifelike Machine  

E-Print Network (OSTI)

States conducted its last underground nuclear test in 1992 and turned to Los Alamos and the other weapons Certification without Testing LOS ALAMOS DELIVERS THE FIRST NUCLEAR TRIGGER IN 20 YEARS A Lifelike Machine laboratories for a new approach to ensuring the continued safety and reliability of its nuclear deterrent

142

Machinable dissolved metal oxide superconductors  

DOE Patents (OSTI)

Powders of a metal oxide superconductor are mixed with sufficient amount (10--80 mol%) of In, Sn, and/or Al, to become nonbrittle, machinable. Preferred superconductors are YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} and Bi-Sr-Ca-Cu-O compounds.

Chen, Chung-Hsuan

1991-12-31T23:59:59.000Z

143

Human-Machine Function Allocation  

Science Conference Proceedings (OSTI)

Table 1   Human-machine function comparison...ability Comparatively slow and poor computers. Excellent and very rapid computers. Memory storage Poor short-term storage. Excellent long-term storage. Excellent short-term storage. Long-term storage very

144

Method for reducing peak phase current and decreasing staring time for an internal combustion engine having an induction machine  

DOE Patents (OSTI)

A method for reducing the starting time and reducing the peak phase currents for an internal combustion engine that is started using an induction machine starter/alternator. The starting time is reduced by pre-fluxing the induction machine and the peak phase currents are reduced by reducing the flux current command after a predetermined period of time has elapsed and concurrent to the application of the torque current command. The method of the present invention also provides a strategy for anticipating the start command for an internal combustion engine and determines a start strategy based on the start command and the operating state of the internal combustion engine.

Amey, David L. (Birmingham, MI); Degner, Michael W. (Farmington Hills, MI)

2002-01-01T23:59:59.000Z

145

Gradiometric flux qubits with tunable gap  

E-Print Network (OSTI)

For gradiometric three-Josephson-junction flux qubits, we perform a systematic study on the tuning of the minimal transition frequency, the so-called qubit gap. By replacing one of the qubit's Josephson junctions by a dc SQUID, the critical current of this SQUID and, in turn, the qubit gap can be tuned in situ by a control flux threading the SQUID loop. We present spectroscopic measurements demonstrating a well-defined controllability of the qubit gap between zero and more than 10 GHz. In the future, this enables one to tune the qubit into and out of resonance with other superconducting quantum circuits, while operating the qubit at its symmetry point with optimal dephasing properties. The experimental data agree very well with model calculations based on the full qubit Hamiltonian. From a numerical fit, we determine the Josephson coupling and the charging energies of the qubit junctions. The derived values agree well with those measured for other junctions fabricated on the same chip. We also demonstrate the biasing of gradiometric flux qubits near the symmetry point by trapping an odd number of flux quanta in the gradiometer loop. In this way, we study the effect of the significant kinetic inductance, thereby obtaining valuable information for the qubit design.

M. J. Schwarz; J. Goetz; Z. Jiang; T. Niemczyk; F. Deppe; A. Marx; R. Gross

2012-10-15T23:59:59.000Z

146

Using linguistic knowledge in statistical machine translation  

E-Print Network (OSTI)

In this thesis, we present methods for using linguistically motivated information to enhance the performance of statistical machine translation (SMT). One of the advantages of the statistical approach to machine translation ...

Zbib, Rabih M. (Rabih Mohamed), 1974-

2010-01-01T23:59:59.000Z

147

Spatial Ontology in Factored Statistical Machine Translation  

Science Conference Proceedings (OSTI)

This paper presents a statistical phrase-based machine translation system which is enriched with semantic data coming from a spatial ontology. Paper presents the spatial ontology, how it is integrated in statistical machine translation system using factored ...

Raivis Skadi?š

2011-08-01T23:59:59.000Z

148

Integrated Inverter For Driving Multiple Electric Machines  

DOE Patents (OSTI)

An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

2006-04-04T23:59:59.000Z

149

Software Tackles Production Line Machine ?Cyclic Jitters?  

Science Conference Proceedings (OSTI)

Software Tackles Production Line Machine 'Cyclic ... products, even shutting down assembly lines. ... high-speed data transmission characteristics of ...

2011-07-18T23:59:59.000Z

150

Automated energy monitoring of machine tools  

E-Print Network (OSTI)

in the energy usage, such as increased total consumption fortotal energy use for the machine tool based on the usage

Vijayaraghavan, Athulan; Dornfeld, David

2010-01-01T23:59:59.000Z

151

Do Accelerating Turing Machines Compute the Uncomputable?  

Science Conference Proceedings (OSTI)

Accelerating Turing machines have attracted much attention in the last decade or so. They have been described as "the work-horse of hypercomputation" (Potgieter and Rosinger 2010: 853). But do they really compute beyond the "Turing limit"--e.g., compute ... Keywords: ATM paradox, Accelerating Turing machine, Epistemic embedding, External and internal computation, Halting problem, Hypercomputation, Ontology of computing, Supertask, Thompson lamp paradox, Turing-machine purism, Turing-machine realism

B. Jack Copeland; Oron Shagrir

2011-05-01T23:59:59.000Z

152

NEUTRON FLUX INTENSITY DETECTION  

DOE Patents (OSTI)

A method of measuring the instantaneous intensity of neutron flux in the core of a nuclear reactor is described. A target gas capable of being transmuted by neutron bombardment to a product having a resonance absorption line nt a particular microwave frequency is passed through the core of the reactor. Frequency-modulated microwave energy is passed through the target gas and the attenuation of the energy due to the formation of the transmuted product is measured. (AEC)

Russell, J.T.

1964-04-21T23:59:59.000Z

153

Method and apparatus for monitoring machine performance  

DOE Patents (OSTI)

Machine operating conditions can be monitored by analyzing, in either the time or frequency domain, the spectral components of the motor current. Changes in the electric background noise, induced by mechanical variations in the machine, are correlated to changes in the operating parameters of the machine.

Smith, Stephen F. (Loudon, TN); Castleberry, Kimberly N. (Harriman, TN)

1996-01-01T23:59:59.000Z

154

Hindi to Punjabi machine translation system  

Science Conference Proceedings (OSTI)

Hindi-Punjabi being closely related language pair (Goyal V. and Lehal G. S., 2008), Hybrid Machine Translation approach has been used for developing Hindi to Punjabi Machine Translation System. Non-availability of lexical resources, spelling variations ... Keywords: Hindi, Punjabi, closely related languages, computational linguistics, machine translation, natural language processing, translate Hindi to Punjabi

Vishal Goyal; Gurpreet Singh Lehal

2011-06-01T23:59:59.000Z

155

Nano-Machines Achieve Huge Mechanical Breakthrough  

E-Print Network (OSTI)

NANO TECH Nano-Machines Achieve Huge Mechanical Breakthrough Dublin, Ireland (SPX) Sep 08, 2005 that use molecular 'nano'-machines of this kind to help perform physical tasks. Nano-machines could also owners set to return to battered Orleans l Six dead, two missing after heavy rains hit Page 1 of 3Nano

Leigh, David A.

156

Machine learning in space: extending our reach  

Science Conference Proceedings (OSTI)

We introduce the challenge of using machine learning effectively in space applications and motivate the domain for future researchers. Machine learning can be used to enable greater autonomy to improve the duration, reliability, cost-effectiveness, and ... Keywords: Autonomy, Machine learning applications, Space missions

Amy Mcgovern; Kiri L. Wagstaff

2011-09-01T23:59:59.000Z

157

A first look at cellular machine-to-machine traffic: large scale measurement and characterization  

Science Conference Proceedings (OSTI)

Cellular network based Machine-to-Machine (M2M) communication is fast becoming a market-changing force for a wide spectrum of businesses and applications such as telematics, smart metering, point-of-sale terminals, and home security and automation systems. ... Keywords: cellular network, machine-to-machine traffic

Muhammad Zubair Shafiq; Lusheng Ji; Alex X. Liu; Jeffrey Pang; Jia Wang

2012-06-01T23:59:59.000Z

158

Machine-to-Machine Communications and Security Solution in Cellular Systems  

Science Conference Proceedings (OSTI)

This paper introduces an efficient machine-to-machine M2M communication model based on 4G cellular systems. M2M terminals are capable of establishing Ad Hoc clusters wherever they are close enough. It is also possible to extend the cellular coverage ... Keywords: 4G Network, Ad Hoc, Machine-To-Machine, Security, Terminals

Mahdy Saedy; Vahideh Mojtahed

2011-04-01T23:59:59.000Z

159

A Machine Approach for Field Weakening of Permanent-Magnet Motors  

SciTech Connect

The commonly known technology of field weakening for permanent-magnet (PM) motors is achieved by controlling the direct-axis current component through an inverter, without using mechanical variation of the air gap, a new machine approach for field weakening of PM machines by direct control of air-gap fluxes is introduced. The demagnetization situation due to field weakening is not an issue with this new method. In fact, the PMs are strengthened at field weakening. The field-weakening ratio can reach 1O:1 or higher. This technology is particularly useful for the PM generators and electric vehicle drives.

Hsu, J.S.

2000-04-02T23:59:59.000Z

160

Z Machine | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Z Machine | National Nuclear Security Administration Z Machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Z Machine Z Machine Home > About Us > Our Programs > Defense Programs > Office of Research, Development, Test, and Evaluation > Office of Inertial Confinement Fusion > Facilities > Z Machine Z Machine Z Machine Sandia National Laboratories

Note: This page contains sample records for the topic "flux coupling machines" 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

High flux reactor  

DOE Patents (OSTI)

A high flux reactor is comprised of a core which is divided into two symetric segments housed in a pressure vessel. The core segments include at least one radial fuel plate. The spacing between the plates functions as a coolant flow channel. The core segments are spaced axially apart such that a coolant mixing plenum is formed between them. A channel is provided such that a portion of the coolant bypasses the first core section and goes directly into the mixing plenum. The outlet coolant from the first core segment is mixed with the bypass coolant resulting in a lower inlet temperature to the lower core segment.

Lake, James A. (Idaho Falls, ID); Heath, Russell L. (Idaho Falls, ID); Liebenthal, John L. (Idaho Falls, ID); DeBoisblanc, Deslonde R. (Summit, NJ); Leyse, Carl F. (Idaho Falls, ID); Parsons, Kent (Idaho Falls, ID); Ryskamp, John M. (Idaho Falls, ID); Wadkins, Robert P. (Idaho Falls, ID); Harker, Yale D. (Idaho Falls, ID); Fillmore, Gary N. (Idaho Falls, ID); Oh, Chang H. (Idaho Falls, ID)

1988-01-01T23:59:59.000Z

162

High-Latitude Ocean and Sea Ice Surface Fluxes: Challenges for Climate Research  

Science Conference Proceedings (OSTI)

Polar regions have great sensitivity to climate forcing; however, understanding of the physical processes coupling the atmosphere and ocean in these regions is relatively poor. Improving our knowledge of high-latitude surface fluxes will require close ...

Mark A. Bourassa; Sarah T. Gille; Cecilia Bitz; David Carlson; Ivana Cerovecki; Carol Anne Clayson; Meghan F. Cronin; Will M. Drennan; Chris W. Fairall; Ross N. Hoffman; Gudrun Magnusdottir; Rachel T. Pinker; Ian A. Renfrew; Mark Serreze; Kevin Speer; Lynne D. Talley; Gary A. Wick

2013-03-01T23:59:59.000Z

163

Convective Transport Theory for Surface Fluxes Tested over the Western Pacific Warm Pool  

Science Conference Proceedings (OSTI)

Turbulent flux measurements from five flights of the National Center for Atmospheric Research Electra aircraft during the Tropical Oceans and Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) are used to test convective ...

Lawrence Greischar; Roland Stull

1999-07-01T23:59:59.000Z

164

Tower and Aircraft Eddy Covariance Measurements of Water Vapor, Energy, and Carbon Dioxide Fluxes during SMACEX  

Science Conference Proceedings (OSTI)

A network of eddy covariance (EC) and micrometeorological flux (METFLUX) stations over corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] canopies was established as part of the Soil Moisture–Atmosphere Coupling Experiment (SMACEX) in ...

J. H. Prueger; J. L. Hatfield; T. B. Parkin; W. P. Kustas; L. E. Hipps; C. M. U. Neale; J. I. MacPherson; W. E. Eichinger; D. I. Cooper

2005-12-01T23:59:59.000Z

165

Stability of Antarctic Bottom Water Formation to Freshwater Fluxes and Implications for Global Climate  

Science Conference Proceedings (OSTI)

The stability of Antarctic Bottom Water (AABW) to freshwater (FW) perturbations is investigated in a coupled climate model of intermediate complexity. It is found that AABW is stable to surface freshwater fluxes greater in volume and rate to ...

Jessica Trevena; Willem P. Sijp; Matthew H. England

2008-07-01T23:59:59.000Z

166

Numerical Modeling of the Turbulent Fluxes of Chemically Reactive Trace Gases in the Atmospheric Boundary Layer  

Science Conference Proceedings (OSTI)

Turbulent fluxes of chemically reactive trace gases in the neutral atmospheric boundary layer (ABL) were simulated with a one-dimensional, coupled diffusion-chemistry model. The effects of rapid chemical reactions were included with a suite of ...

W. Gao; M. L. Wesely

1994-07-01T23:59:59.000Z

167

Machines  

Science Conference Proceedings (OSTI)

...are used to supply electrical energy for the welding operation. The transformer tap switch frequently is a rotary, eight-step, knife-type, fully enclosed locking switch, which provides convenient adjustment of the welding voltage to suit work

168

Electroslag remelting with used fluxes  

Science Conference Proceedings (OSTI)

The Ukranian Scientific-Research Institute of Specialty Steel collaborated with plants engaged in the production of quality metals to introduce a low-waste electroslag remelting (ESR) technology employing used fluxes. It was established that the fluoride (type ANF-1) and fluoride-oxide (type ANF-6) fluxes which are widely used in ESR still have a high content of calcium fluoride and alumina and a low impurity content after 8-10 h of ESR. In the ESR of steels with used fluxes, the content of monitored components in the final slags changes negligibly, while the content of most impurities decreases. The used flux is also characterized by a low concentration of phosphorus and sulfur. It was found that flux can be used 3-5 times when it makes up 50% of the flux mixture in the charge. The savings realized from the use of spent flux in ESR amounts to 4-9 rubles/ton steel.

Yakovlev, N.F.; Sokha, Yu.S.; Oleinik, Yu.S.; Prokhorov, A.N.; Ol'shanskaya, T.V.

1988-05-01T23:59:59.000Z

169

Time machines and traversable wormholes in modified theories of gravity  

E-Print Network (OSTI)

We review recent work on wormhole geometries in the context of modified theories of gravity, in particular, in f(R) gravity and with a nonminimal curvature-matter coupling, and in the recently proposed hybrid metric-Palatini theory. In principle, the normal matter threading the throat can be shown to satisfy the energy conditions and it is the higher order curvatures terms that sustain these wormhole geometries. We also briefly review the conversion of wormholes into time-machines, explore several of the time travel paradoxes and possible remedies to these intriguing side-effects in wormhole physics.

Francisco S. N. Lobo

2012-12-05T23:59:59.000Z

170

Momentum Flux Budget across the Air–Sea Interface under Uniform and Tropical Cyclone Winds  

Science Conference Proceedings (OSTI)

In coupled ocean–atmosphere models, it is usually assumed that the momentum flux into ocean currents is equal to the flux from air (wind stress). However, when the surface wave field grows (decays) in space or time, it gains (loses) momentum and ...

Yalin Fan; Isaac Ginis; Tetsu Hara

2010-10-01T23:59:59.000Z

171

Effect of Side Permanent Magnets for Reluctance Interior Permanent Magnet Reluctance Machines  

Science Conference Proceedings (OSTI)

A traditional electric machine uses two dimensional magnetic flux paths in its rotor. This paper presents the development work on the utilization of the third dimension of a rotor. As an example, the air gap flux of a radial gap interior permanent magnet motor can be significantly enhanced by additional permanent magnets (PM) mounted at the sides of the rotor. A prototype motor built with this concept provided higher efficiency and required a shorter stator core length for the same power output as the Toyota/Prius traction drive motor.

Hsu, John S [ORNL; Lee, Seong T [ORNL; Wiles, Randy H [ORNL; Coomer, Chester [ORNL; Lowe, Kirk T [ORNL

2007-01-01T23:59:59.000Z

172

Experiments with the Dragon Machine  

Science Conference Proceedings (OSTI)

The basic characteristics of a self-sustaining chain reaction were demonstrated with the Chicago Pile in 1943, but it was not until early 1945 that sufficient enriched material became available to experimentally verify fast-neutron cross-sections and the kinetic characteristics of a nuclear chain reaction sustained with prompt neutrons alone. However, the demands of wartime and the rapid decline in effort following the cessation of hostilities often resulted in the failure to fully document the experiments or in the loss of documentation as personnel returned to civilian pursuits. When documented, the results were often highly classified. Even when eventually declassified, the data were often not approved for public release until years later.2 Even after declassification and approval for public release, the records are sometimes difficult to find. Through a fortuitous discovery, a set of handwritten notes by ''ORF July 1945'' entitled ''Dragon - Research with a Pulsed Fission Reactor'' was found by William L. Myers in an old storage safe at Pajarito Site of the Los Alamos National Laboratory3. Of course, ORF was identified as Otto R. Frisch. The document was attached to a page in a nondescript spiral bound notebook labeled ''494 Book'' that bore the signatures of Louis Slotin and P. Morrison. The notes also reference an ''Idea LS'' that can only be Louis Slotin. The discovery of the notes led to a search of Laboratory Archives, the negative files of the photo lab, and the Report Library for additional details of the experiments with the Dragon machine that were conducted between January and July 1945. The assembly machine and the experiments were carefully conceived and skillfully executed. The analyses--without the crutch of computers--display real insight into the characteristics of the nuclear chain reaction. The information presented here provides what is believed to be a complete collection of the original documentation of the observations made with the Dragon Machine in early 1945.

R.E. Malenfant

2005-08-12T23:59:59.000Z

173

Free-piston cutting machine  

DOE Patents (OSTI)

A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.

Ciccarelli, Gaby (East Setauket, NY); Subudhi, Manomohan (East Setauket, NY); Hall, Robert E. (Port Jefferson, NY)

2000-01-01T23:59:59.000Z

174

Hypervelocity cutting machine and method  

DOE Patents (OSTI)

A method and machine are provided for cutting a workpiece such as concrete. A gun barrel is provided for repetitively loading projectiles therein and is supplied with a pressurized propellant from a storage tank. A thermal storage tank is disposed between the propellant storage tank and the gun barrel for repetitively receiving and heating propellant charges which are released in the gun barrel for repetitively firing projectiles therefrom toward the workpiece. In a preferred embodiment, hypervelocity of the projectiles is obtained for cutting the concrete workpiece by fracturing thereof. 10 figs.

Powell, J.R.; Reich, M.

1996-11-12T23:59:59.000Z

175

Hypervelocity cutting machine and method  

DOE Patents (OSTI)

A method and machine 14 are provided for cutting a workpiece 12 such as concrete. A gun barrel 16 is provided for repetitively loading projectiles 22 therein and is supplied with a pressurized propellant from a storage tank 28. A thermal storage tank 32,32A is disposed between the propellant storage tank 28 and the gun barrel 16 for repetitively receiving and heating propellant charges which are released in the gun barrel 16 for repetitively firing projectiles 22 therefrom toward the workpiece 12. In a preferred embodiment, hypervelocity of the projectiles 22 is obtained for cutting the concrete workpiece 12 by fracturing thereof.

Powell, James R. (Shoreham, NY); Reich, Morris (Queens, NY)

1996-11-12T23:59:59.000Z

176

Micro-machined calorimetric biosensors  

DOE Patents (OSTI)

A method and apparatus are provided for detecting and monitoring micro-volumetric enthalpic changes caused by molecular reactions. Micro-machining techniques are used to create very small thermally isolated masses incorporating temperature-sensitive circuitry. The thermally isolated masses are provided with a molecular layer or coating, and the temperature-sensitive circuitry provides an indication when the molecules of the coating are involved in an enthalpic reaction. The thermally isolated masses may be provided singly or in arrays and, in the latter case, the molecular coatings may differ to provide qualitative and/or quantitative assays of a substance.

Doktycz, Mitchel J. (Knoxville, TN); Britton, Jr., Charles L. (Alcoa, TN); Smith, Stephen F. (Loudon, TN); Oden, Patrick I. (Plano, TX); Bryan, William L. (Knoxville, TN); Moore, James A. (Powell, TN); Thundat, Thomas G. (Knoxville, TN); Warmack, Robert J. (Knoxville, TN)

2002-01-01T23:59:59.000Z

177

Warm Pool Physics in a Coupled GCM  

Science Conference Proceedings (OSTI)

The physics of the Indo–Pacific warm pool are investigated using a coupled ocean atmosphere general circulation model. The model, developed at the Max-Planck-Institut fair Meteorologic, Hamburg, does not employ a flux correction and is used with ...

Niklas Schneider; Tim Barnett; Mojib Latif; Timothy Stockdale

1996-01-01T23:59:59.000Z

178

Machine and Beam Delivery Updates  

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

MAchine and Beam delivery Updates FY13 MAchine and Beam delivery Updates FY13 Summary of Beam Delivery: FACET Summary Feb_15_22.pdf FACET Summary Feb_15_22.pdf FACET Summary Feb_23_Mar_1.pdf FACET Summary Feb_23_Mar_1.pdf FACET Summary Mar_2_8.pdf FACET Summary Mar_2_8.pdf FACET Summary Mar_9_15.pdf FACET Summary Mar_9_15.pdf FACET Summary Mar_16_22.pdf FACET Summary Mar_16_22.pdf FACET Summary Mar_23_29.pdf FACET Summary Mar_23_29.pdf FACET Summary Mar_30_Apr_5.pdf FACET Summary Mar_30_Apr_5.pdf FACET Summary Apr_6_12.pdf FACET Summary Apr_6_12.pdf FACET Summary Apr_27_May_3.pdf FACET Summary Apr_27_May_3.pdf FACET Summary May_4_10.pdf FACET Summary May_4_10.pdf Emittance Stability in Sector 2_31513.pdf Emittance Stability in Sector 2_31513.pdf FACET beam operations readiness with R56.pdf FACET beam operations readiness with R56.pdf (6/19/2013)

179

Rapid Response Small Machining NNR Project 703025  

SciTech Connect

This project was an effort to develop a machining area for small sized parts that is capable of delivering product with a quick response time. This entailed focusing efforts on leaning out specific work cells that would result in overall improvement to the entire machining area. This effort involved securing the most efficient available technologies for these areas. In the end, this incorporated preparing the small machining area for transformation to a new facility.

Kanies, Tim

2008-12-05T23:59:59.000Z

180

Automated energy monitoring of machine tools  

E-Print Network (OSTI)

studies to correlate energy usage with the operations beinghas characterized machining energy usage solely based on theplanning, process energy usage was characterized solely by

Vijayaraghavan, Athulan; Dornfeld, David

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Single machine stochastic appointment sequencing and scheduling  

E-Print Network (OSTI)

linear combination of job waiting time, machine idle time, and overtime. .... Through straightforward but lengthy analysis we found finite values for M1 and M2.

182

High pressure water jet mining machine  

DOE Patents (OSTI)

A high pressure water jet mining machine for the longwall mining of coal is described. The machine is generally in the shape of a plowshare and is advanced in the direction in which the coal is cut. The machine has mounted thereon a plurality of nozzle modules each containing a high pressure water jet nozzle disposed to oscillate in a particular plane. The nozzle modules are oriented to cut in vertical and horizontal planes on the leading edge of the machine and the coal so cut is cleaved off by the wedge-shaped body.

Barker, Clark R. (Rolla, MO)

1981-05-05T23:59:59.000Z

183

6.685 Electric Machines, Fall 2003  

E-Print Network (OSTI)

Treatment of electromechanical transducers, rotating and linear electric machines. Lumped-parameter electromechanics of interaction. Development of device characteristics: energy conversion density, efficiency; and of ...

Kirtley, James L.

184

Automated energy monitoring of machine tools  

E-Print Network (OSTI)

Potential for Energy Consumption in Discrete Part Productionprocessing Reducing the energy consumption of machine toolsthis, monitoring of energy consumption patterns in the

Vijayaraghavan, Athulan; Dornfeld, David

2010-01-01T23:59:59.000Z

185

ARM - Measurement - CO2 flux  

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

: CO2 flux The rate of flow for carbon dioxide, a heavy, colorless greenhouse gas. Categories Atmospheric Carbon, Surface Properties Instruments The above measurement is...

186

Physics of String Flux Compactifications  

E-Print Network (OSTI)

We provide a qualitative review of flux compactifications of string theory, focusing on broad physical implications and statistical methods of analysis.

Frederik Denef; Michael R. Douglas; Shamit Kachru

2007-01-06T23:59:59.000Z

187

Methods, systems and apparatus for controlling operation of two alternating current (AC) machines  

SciTech Connect

A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.

Gallegos-Lopez, Gabriel (Torrance, CA); Nagashima, James M. (Cerritos, CA); Perisic, Milun (Torrance, CA); Hiti, Silva (Redondo Beach, CA)

2012-02-14T23:59:59.000Z

188

Tabu search heuristic for two-machine flowshop with batch processing machines  

Science Conference Proceedings (OSTI)

Batch processing machines are frequently encountered in many industrial environments. A batch processing machine is one which can process several jobs simultaneously as a batch. The processing time of a batch is equal to the largest processing time of ... Keywords: Batch processing machines, Flowshop, MILP model, Tabu search

Li-Man Liao; Ching-Jen Huang

2011-04-01T23:59:59.000Z

189

A two-stage stochastic programming model for the parallel machine scheduling problem with machine capacity  

Science Conference Proceedings (OSTI)

This paper proposes a two-stage stochastic programming model for the parallel machine scheduling problem where the objective is to determine the machines' capacities that maximize the expected net profit of on-time jobs when the due dates are uncertain. ... Keywords: Average sample approximation, Parallel machine scheduling, Ranking and selection, Stochastic programming, Weighted number of on-time jobs

Talal Al-Khamis; Rym M'Hallah

2011-12-01T23:59:59.000Z

190

Review: Virtual machine tools and virtual machining-A technological review  

Science Conference Proceedings (OSTI)

Virtual manufacturing systems provide a useful means for products to be manufactured 'right the first time' without the need of physical testing on the shop floor. Earlier research was mostly on developing a virtual manufacturing environment. Over the ... Keywords: Machining simulation, Virtual machine tool, Virtual machining, Virtual system

Aini Abdul Kadir; Xun Xu; Enrico Hämmerle

2011-06-01T23:59:59.000Z

191

Non-linear analysis of advanced high-phase number induction machines for adjustable speed drive applications  

E-Print Network (OSTI)

This study focuses on the effect of high order phases on electrical machines' parameters and performance. A general approach has been conducted using the induction motor equivalent circuit, winding function and conventional design methods. This approach was supported with finite element analysis. The study shows that high order phase machines have higher peak torque than the equivalent three phase machines. This is attributed to the lower leakage inductance that decreases as the number of phases increases. However, the peak slip frequency increases causing an increase in the skin effect and losses of the rotor. Some design suggestions are proposed to resolve this issue. The conducted harmonic analysis shows that high order harmonics (3rd, 5th, ..) that generate pulsating torque in the three phase machine can be used in high order phase machines to generate torque. For this purpose, a multiphase coordinate transformation and a revised dq model of the five phase induction motor under the fundamental and third harm,monic currents are established in a newly defined d?q?d?q?n reference frame. An extensive analysis using the finite element package has been conducted to compare the performance of different machines when supplied with quasi-rectangular currents with concentrated windings. From torque per ampere point of view, five-phase machine shows an outstanding performance compared with other machines. Futhermore, additional analysis has been conducted for the five-phase and three-phase machines when supplied with sinusoidal voltage source. Experiments have been performed on a 7.5hp five-phase induction motor using TMS320C32 DSP to systematically test and compare stator tooth flux densities and torques in the presence and absence of third harmonic currents. The results obtained are consistent with theoretical studies and simulation analysis, which further demonstrate the feasibility and practical significance of the high-order phase machines.

Qahtany, Nasser H.

2002-01-01T23:59:59.000Z

192

Integrated Mirco-Machined Hydrogen Gas Sensors  

DOE Green Energy (OSTI)

The widespread use of hydrogen as both an industrial process gas and an energy storage medium requires fast, selective detection of hydrogen gas. This report discusses the development of a new type of solid-state hydrogen gas sensor that couples novel metal hydride thin films with a MEMS (Micro-Electro-Mechanical System) structure known as a micro-hotplate. In this project, Micro-hotplate structures were overcoated with engineered multilayers that serve as the active hydrogen-sensing layer. The change in electrical resistance of these layers when exposed to hydrogen gas was the measured sensor output. This project focused on achieving the following objectives: (1) Demonstrating the capabilities of micro-machined H2 sensors; (2) Developing an understanding of their performance; (3) Critically evaluating the utility and viability of this technology for life safety and process monitoring applications. In order to efficiently achieve these objectives, the following four tasks were identified: (1) Sensor Design and Fabrication; (2) Short Term Response Testing; (3) Long Term Behavior Investigation; (4) Systems Development. Key findings in the project include: The demonstration of sub-second response times to hydrogen; measured sensitivity to hydrogen concentrations below 200 ppm; a dramatic improvement in the sensor fabrication process and increased understanding of the processing properties and performance relationships of the devices; the development of improved sensing multilayers; and the discovery of a novel strain based hydrogen detection mechanism. The results of this program suggest that this hydrogen sensor technology has exceptional potential to meet the stringent demands of life safety applications as hydrogen utilization and infrastructure becomes more prevalent.

Frank DiMeoJr. Ing--shin Chen

2005-12-15T23:59:59.000Z

193

Improving vehicle aeroacoustics using machine learning  

Science Conference Proceedings (OSTI)

This paper presents a new approach to improving the overall aeroacoustic comfort of a vehicle, an important feature of vehicle design. The traditional improvement process is extended to benefit extensively from machine learning, information retrieval ... Keywords: Aeroacoustics, Automobile industry, Machine learning, Noise frequency spectrum analysis, Process automation

Damjan Kunar; Martin Moina; Marina Giordanino; Ivan Bratko

2012-08-01T23:59:59.000Z

194

Quantum Cloning Machines and the Applications  

E-Print Network (OSTI)

No-cloning theorem is fundamental for quantum mechanics and for quantum information science that states an unknown quantum state cannot be cloned perfectly. However, we can try to clone a quantum state approximately with the optimal fidelity, or instead, we can try to clone it perfectly with the largest probability. Thus various quantum cloning machines have been designed for different quantum information protocols. Specifically, quantum cloning machines can be designed to analyze the security of quantum key distribution protocols such as BB84 protocol, six-state protocol, B92 protocol and their generalizations. Some well-known quantum cloning machines include universal quantum cloning machine, phase-covariant cloning machine, the asymmetric quantum cloning machine and the probabilistic quantum cloning machine etc. In the past years, much progress has been made in studying quantum cloning machines and their applications and implementations, both theoretically and experimentally. In this review, we will give a complete description of those important developments about quantum cloning and some related topics. On the other hand, this review is self-consistent, and in particular, we try to present some detailed formulations so that further study can be taken based on those results. In addition, this review also contains some new results, for example, the study of quantum retrodiction protocol.

Heng Fan; Yi-Nan Wang; Li Jing; Jie-Dong Yue; Han-Duo Shi; Yong-Liang Zhang; Liang-Zhu Mu

2013-01-14T23:59:59.000Z

195

Following directions using statistical machine translation  

Science Conference Proceedings (OSTI)

Mobile robots that interact with humans in an intuitive way must be able to follow directions provided by humans in unconstrained natural language. In this work we investigate how statistical machine translation techniques can be used to bridge the gap ... Keywords: human-robot interaction, instruction following, natural language, navigation, statistical machine translation

Cynthia Matuszek; Dieter Fox; Karl Koscher

2010-03-01T23:59:59.000Z

196

Bagging and Boosting statistical machine translation systems  

Science Conference Proceedings (OSTI)

In this article we address the issue of generating diversified translation systems from a single Statistical Machine Translation (SMT) engine for system combination. Unlike traditional approaches, we do not resort to multiple structurally different SMT ... Keywords: Ensemble learning, Statistical machine translation, System combination

Tong Xiao; Jingbo Zhu; Tongran Liu

2013-02-01T23:59:59.000Z

197

Comparison of crowdsourcing translation with Machine Translation  

Science Conference Proceedings (OSTI)

In this paper we examine the model of crowdsourcing for translation and compare it with Machine Translation (MT). The large volume of material to be translated, the translation of this material into many languages combined with tight deadlines lead enterprises ... Keywords: Machine Translation, crowdsourcing, empirical data, human translation, quality

Dimitra Anastasiou; Rajat Gupta

2011-12-01T23:59:59.000Z

198

Machine Translation Errors: English and Iraqi Arabic  

Science Conference Proceedings (OSTI)

Errors in machine translations of English-Iraqi Arabic dialogues were analyzed using the methods developed for the Human Translation Error Rate measure (HTER). Human annotations were used to refine the Translation Error Rate (TER) annotations. The analyses ... Keywords: Arabic, English, error analysis, evaluation, statistical machine translation

S. Condon; D. Parvaz; J. Aberdeen; C. Doran; A. Freeman; M. Awad

2011-03-01T23:59:59.000Z

199

A Machine Vision System for Inspecting Bearings  

Science Conference Proceedings (OSTI)

In this paper, we describe a machine vision system for inspecting bearings, which are an important part of electro-mechanical kWh meters. The system consists of a personal computer with a frame grabber, a black and white progressive scan CCD camera, ... Keywords: machine vision, quality control, bearing, eccentricity

2000-09-01T23:59:59.000Z

200

ARM - Measurement - Latent heat flux  

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

govMeasurementsLatent heat flux govMeasurementsLatent heat flux 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 : Latent heat flux The time rate of flow for the specific enthalpy difference between two phases of a substance at the same temperature, typically water. Categories Surface 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. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems ECOR : Eddy Correlation Flux Measurement System EBBR : Energy Balance Bowen Ratio Station

Note: This page contains sample records for the topic "flux coupling machines" 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

Solar proton fluxes since 1956  

SciTech Connect

The fluxes of protons emitted during solar flares since 1956 were evaluated. The depth-versus-activity profiles of /sup 56/Co in several lunar rocks are consistent with the solar-proton fluxes detected by experiments on several satellites. Only about 20% of the solar-proton-induced activities of /sup 22/Na and /sup 55/Fe in lunar rocks from early Apollo missions were produced by protons emitted from the sun during solar cycle 20 (1965--1975). The depth-versus-activity data for these radionuclides in several lunar rocks were used to determine the fluxes of protons during solar cycle 19 (1954--1964). The average proton fluxes for cycle 19 are about five times those for both the last million years and for cycle 20. These solar-proton flux variations correlate with changes in sunspot activity.

Reedy, R.C.

1977-04-13T23:59:59.000Z

202

ARM - Measurement - Sensible heat flux  

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

govMeasurementsSensible heat flux govMeasurementsSensible heat flux 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 : Sensible heat flux The time rate of flow for the energy transferred from a warm or hot surface to whatever is touching it, typically air. Categories Surface 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. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems ECOR : Eddy Correlation Flux Measurement System EBBR : Energy Balance Bowen Ratio Station

203

The boardman regional flux experiment  

SciTech Connect

A field campaign was carried out near Boardman, Oregon, to study the effects of subgrid-scale variability of sensible- and latent-heat fluxes on surface boundary-layer properties. The experiment involved three U.S. Department of Energy laboratories, one National Oceanic and Atmospheric Administration laboratory, and several universities. The experiment was conducted in a region of severe contrasts in adjacent surface types that accentuated the response of the atmosphere to variable surface forcing. Large values of sensible-heat flux and low values of latent-heat flux characterized a sagebrush steppe area; significantly smaller sensible-heat fluxes and much larger latent-heat fluxes were associated with extensive tracts of irrigated farmland to the north, east, and west of the steppe. Data were obtained from an array of surface flux stations, remote-sensing devices, an instrumented aircraft, and soil and vegetation measurements. The data will be used to address the problem of extrapolating from a limited number of local measurements to area-averaged values of fluxes suitable for use in global climate models. 16 refs., 13 figs.

Doran, J.C.; Hubbe, J.M.; Kirkham, R.R.; Shaw, W.J.; Whiteman, C.D. (Pacific Northwest Lab., Richland, WA (United States)); Barnes, F.J.; Cooper, D.; Porch, W. (Los Alamos National Lab., NM (United States)); Coulter, R.L.; Cook, D.R.

1992-11-01T23:59:59.000Z

204

Using artificially generated data to evaluate statistical machine translation  

Science Conference Proceedings (OSTI)

Although Statistical Machine Translation (SMT) is now the dominant paradigm within Machine Translation, we argue that it is far from clear that it can outperform Rule-Based Machine Translation (RBMT) on small- to medium-vocabulary applications where ...

Manny Rayner; Paula Estrella; Pierrette Bouillon; Beth Ann Hockey; Yukie Nakao

2009-08-01T23:59:59.000Z

205

A hybrid type small 5-axis CNC milling machine  

E-Print Network (OSTI)

5-axis CNC milling machines are important in a number of industries ranging from aerospace to consumer-die-mold machining because they can deliver high machining accuracy with a spindle tilting capacity. Most of these ...

Son, Seung-Kil, 1964-

2002-01-01T23:59:59.000Z

206

G-flux in F-theory and algebraic cycles  

E-Print Network (OSTI)

We construct explicit G4 fluxes in F-theory compactifications. Our method relies on identifying algebraic cycles in the Weierstrass equation of elliptic Calabi-Yau fourfolds. We show how to compute the D3-brane tadpole and the induced chirality indices directly in F-theory. Whenever a weak coupling limit is available, we compare and successfully match our findings to the corresponding results in type IIB string theory. Finally, we present some generalizations of our results which hint at a unified description of the elliptic Calabi-Yau fourfold together with the four-form flux G4 as a coherent sheaf. In this description the close link between G4 fluxes and algebraic cycles is manifest.

Andreas P. Braun; Andres Collinucci; Roberto Valandro

2011-07-26T23:59:59.000Z

207

DOE - Office of Legacy Management -- La Pointe Machine and Tool...  

Office of Legacy Management (LM)

La Pointe Machine and Tool Co - MA 16 FUSRAP Considered Sites Site: LA POINTE MACHINE AND TOOL CO. (MA.16 ) Eliminated from consideration under FUSRAP Designated Name: Not...

208

Electric machine for hybrid motor vehicle - Energy Innovation ...  

A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet ...

209

Hybrid MPI/OpenMP parallel support vector machine training  

E-Print Network (OSTI)

Jan 6, 2009 ... Support Vector Machines are a powerful machine learning technol- ..... to the precision recall curve were evaluated on the Challenge web-.

210

Multi-winding homopolar electric machine - Energy Innovation Portal  

A multi-winding homopolar electric machine and method for converting between mechanical energy and electrical energy. The electric machine includes a shaft defining ...

211

Ultraprecision machining of optics at Los Alamos  

Science Conference Proceedings (OSTI)

Ultraprecision machine tools are used at Los Alamos for single point diamond turning of optics and other precision parts. Measurements of a 50-mm-dia copper flat are used to illustrate the quality of a part which can be machined on the Moore No. 3 lathe. Measurements of a 0.4-m-dia aluminum mirror with a 20-m radius-of-curvature are presented as an example of a part machined on the Moore No. 5 lathe. A varying frequency sine wave grating is used to show a type of special optical grating which can be produced using the Pneumo lathe.

Rhorer, R.L.; Gauler, A.L.; Colston, E.W.; Ruhe, J.R.

1981-01-01T23:59:59.000Z

212

THE COUPLING CORRECTION SYSTEM AT RHIC: RESULTS FOR THE RUN 2000 AND PLANS FOR 2001.  

SciTech Connect

The RHIC coupling correction system has been commissioned during the year 2000 run, which marked the successful first year of operation of the machine. The RHIC coupling correction system is described with particular emphasis on its flexibility, which allows using both global and local coupling compensation techniques. Coupling measurements and correction data are presented for the RHIC Blue and Yellow rings, together with the procedure used to reduce the minimum tune separation to 0.001, the typical resolution for tune measurements during run 2000. They further demonstrate how local coupling compensation in the interaction regions substantially reduces the strength of the skew quadrupole families used for global coupling compensation.

PILAT,F.; FISCHER,W.; PEGGS,S.; PTITSYN,V.; TEPIKIAN,S.

2001-06-18T23:59:59.000Z

213

THE COUPLING CORRECTION SYSTEM AT RHIC: RESULTS FOR THE RUN 2000 AND PLANS FOR 2001.  

SciTech Connect

The RHIC coupling correction system has been commissioned during the Year 2000 run, which marked the successful first year of operation of the machine. The RHIC coupling correction system is described with particular emphasis on its flexibility, which allows using both global and local coupling compensation techniques. Coupling measurements and correction data are presented for the RHIC Blue and Yellow rings, together with the procedure used to reduce the minimum tune separation to 0.001, the typical resolution for tune measurements during run 2000. They further demonstrate how local coupling compensation in the interaction region substantially reduces the strength of the skew quadrupole families used for global coupling compensation.

PILAT,F.; FISCHER,W.; PEGGS,S.; PTITSYN,V.; TEPIKIAN,S.

2001-06-18T23:59:59.000Z

214

ARM - Measurement - Soil heat flux  

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

heat flux heat flux 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 : Soil heat flux A quantity measured according to the formula B = {lambda}(dT/dz), where {lambda} is the conductivity of the soil that the heat is moving through. Categories Surface 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. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems EBBR : Energy Balance Bowen Ratio Station SEBS : Surface Energy Balance System External Instruments

215

Estimation of Surface Heat Flux  

Science Conference Proceedings (OSTI)

The authors reconsider the problem of estimating the sensible heat transfer at the earth's surface from direct measurements of turbulent fluxes in the atmospheric boundary layer. For simplicity, only horizontally homogeneous conditions are ...

Jielun Sun; Steven K. Esbensen; L. Mahrt

1995-09-01T23:59:59.000Z

216

ARM - Measurement - Soil moisture flux  

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

moisture flux moisture flux 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 : Soil moisture flux A quantity measured according to the formula B = {lambda}(dq/dz), where {lambda} is the conductivity of the soil that the moisture is moving through. Categories Surface 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. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems External Instruments ECMWFDIAG : European Centre for Medium Range Weather Forecasts

217

Flux Measurement with Conditional Sampling  

Science Conference Proceedings (OSTI)

A method is proposed to measure scalar fluxes using conditional sampling. Only the mean concentrations of updraft and downdraft samples, the standard deviation of the vertical velocity, and a coefficient of proportionality, b, need to be known. ...

Joost A. Businger; Steven P. Oncley

1990-04-01T23:59:59.000Z

218

The Solar Wind Energy Flux  

E-Print Network (OSTI)

The solar-wind energy flux measured near the ecliptic is known to be independent of the solar-wind speed. Using plasma data from Helios, Ulysses, and Wind covering a large range of latitudes and time, we show that the solar-wind energy flux is independent of the solar-wind speed and latitude within 10%, and that this quantity varies weakly over the solar cycle. In other words the energy flux appears as a global solar constant. We also show that the very high speed solar-wind (VSW > 700 km/s) has the same mean energy flux as the slower wind (VSW solar-wind speed and density, which formalizes the anti-correlation between these quantities.

Chat, G Le; Meyer-Vernet, N

2012-01-01T23:59:59.000Z

219

Grid-Averaged Surface Fluxes  

Science Conference Proceedings (OSTI)

This study examines the inadequacies of formulations for surface fluxes for use in numerical models of atmospheric flow. The difficulty is that numerical models imply spatial averaging over each grid area. Existing formulations am based on the ...

L. Mahrt

1987-08-01T23:59:59.000Z

220

Definition: Gas Flux Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling Jump to: navigation, search Dictionary.png Gas Flux Sampling Gas flux sampling measures the flow of volatile gas emissions from a specific location and compares...

Note: This page contains sample records for the topic "flux coupling machines" 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

Flux Sampling Errors for Aircraft and Towers  

Science Conference Proceedings (OSTI)

Various errors and influences leading to differences between tower- and aircraft-measured fluxes are surveyed. This survey is motivated by reports in the literature that aircraft fluxes are sometimes smaller than tower-measured fluxes. Both tower ...

L. Mahrt

1998-04-01T23:59:59.000Z

222

A Numerical Modeling System of the Hydrological Cycle for Estimation of Water Fluxes in the Huaihe River Plain Region, China  

Science Conference Proceedings (OSTI)

To analyze the water budget under human influences in the Huaihe River plain region in China, the authors have developed a numerical modeling system that integrates water flux algorithms into a platform created by coupling a soil moisture model ...

Xi Chen; Yongqin David Chen; Zhicai Zhang

2007-08-01T23:59:59.000Z

223

Comparison between Global Latent Heat Flux Computed from Multisensor (SSM/I and AVHRR) and from In Situ Data  

Science Conference Proceedings (OSTI)

The accurate estimate of the latent heat flux (LHF) is important to understand better the coupling between the atmosphere and the ocean and their respective circulation. In the near future, the availability of satellite-derived datasets over long ...

Didier Jourdan; Catherine Gautier

1995-02-01T23:59:59.000Z

224

Gas Flux Sampling | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling Gas Flux Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gas Flux Sampling Details Activities (26) Areas (20) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Gas Sampling Information Provided by Technique Lithology: Stratigraphic/Structural: High flux can be indicative of conduits for fluid flow. Hydrological: Thermal: Anomalous flux is associated with active hydrothermal activity. Dictionary.png Gas Flux Sampling: Gas flux sampling measures the flow of volatile gas emissions from a specific location and compares it to average background emissions. Anomalously high gas flux can be an indication of hydrothermal activity.

225

Machine Partitions | Argonne Leadership Computing Facility  

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

BG/Q Drivers Status Machine Overview Machine Partitions Torus Network Data Storage & File Systems Compiling & Linking Queueing & Running Jobs Data Transfer Debugging & Profiling Performance Tools & APIs Software & Libraries IBM References Intrepid/Challenger/Surveyor Tukey Eureka / Gadzooks Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Machine Partitions Mira As our production machine, the queues on Mira are very similar to those on our BG/P system Intrepid. In the prod-capability queue, partition sizes of 8192, 12288, 16384, 32768, and 49152 nodes are available. All partitions have a full torus network. The max runtime of jobs submitted to the

226

Computational aesthetic evaluation: steps towards machine creativity  

Science Conference Proceedings (OSTI)

Programmer and artists have invented a broad range of generative systems that create art and music. These powerful systems sometimes produce results that surprise their human collaborators, but the surprises are not always welcome or useful. Machine ...

Philip Galanter

2012-08-01T23:59:59.000Z

227

Machine Learning for Sequential Data: A Review  

Science Conference Proceedings (OSTI)

Statistical learning problems in many fields involve sequential data. This paper formalizes the principal learning tasks and describes the methods that have been developed within the machine learning research community for addressing these problems. ...

Thomas G. Dietterich

2002-08-01T23:59:59.000Z

228

CCG supertags in factored statistical machine translation  

Science Conference Proceedings (OSTI)

Combinatorial Categorial Grammar (CCG) supertags present phrase-based machine translation with an opportunity to access rich syntactic information at a word level. The challenge is incorporating this information into the translation process. Factored ...

Alexandra Birch; Miles Osborne; Philipp Koehn

2007-06-01T23:59:59.000Z

229

March 8, 2006: Sandia's Z Machine  

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

March 8, 2006The Department's Sandia National Laboratories announces that its Z machine has produced plasmas that exceed temperatures of 2 billion degrees Kelvin-hotter than the interiors of stars....

230

An environment machine for the ??-calculus  

Science Conference Proceedings (OSTI)

We introduce a natural deduction-like formalisation of Parigot's ??-calculus. From this, we derive an environment machine that allows any well-typed ??-term to be reduced to its weak head normal form. The soundness and completeness ...

Philippe De Groote

1998-12-01T23:59:59.000Z

231

Machine translation system combination by confusion forest  

Science Conference Proceedings (OSTI)

The state-of-the-art system combination method for machine translation (MT) is based on confusion networks constructed by aligning hypotheses with regard to word similarities. We introduce a novel system combination framework in which hypotheses are ...

Taro Watanabe; Eiichiro Sumita

2011-06-01T23:59:59.000Z

232

A machine learning system for recognizing subclasses  

Science Conference Proceedings (OSTI)

Thematic information extraction from remote sensing images is a complex task. In this demonstration, we present *Miner machine learning system. In particular, we demonstrate an advanced subclass recognition algorithm that is specifically designed to ...

Ranga Raju Vatsavai

2012-07-01T23:59:59.000Z

233

Machine Status | Argonne Leadership Computing Facility  

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

Machine Status Science on Mira Cores Core Hours Atomistic Simulations of Nanoscale Oxides and Oxide Interfaces 65536 1297201.9256901 Lattice QCD 16384 28881.396622179 MockBOSS :...

234

Revisiting parallel rendering for shared memory machines  

Science Conference Proceedings (OSTI)

Increasing the core count of CPUs to increase computational performance has been a significant trend for the better part of a decade. This has led to an unprecedented availability of large shared memory machines. Programming paradigms and systems are ...

B. Nouanesengsy; J. Ahrens; J. Woodring; H. Shen

2011-04-01T23:59:59.000Z

235

Virtualisation: Real security for virtual machines  

Science Conference Proceedings (OSTI)

Server virtualisation offers many real benefits to enterprises, maximising hardware resources and providing significant cost and energy savings. But there is a downside: all of the security issues we battle on networked systems also plague virtual machines, ...

Ulf Mattsson

2009-04-01T23:59:59.000Z

236

MEASUREMENT OF LINEAR COUPLING RESONANCE IN RHIC.  

Science Conference Proceedings (OSTI)

Linear coupling is one of the factors that determine beam lifetime in RHIC. The traditional method of measuring the minimum tune separation requires a tune scan and can't be done parasitically or during the acceleration ramp. A new technique of using ac dipoles to measure linear coupling resonance has been developed at RHIC. This method measures the degree of coupling by comparing the amplitude of the horizontal coherent excitation with the amplitude of the vertical coherent excitation if the beam is excited by the vertical AC dipole and vice versa. One advantage of this method is that it can be done without changing tunes from the normal machine working points. In principle, this method can also localize the coupling source by mapping out the coupling driving terms throughout the ring. This is very useful for local decoupling the interaction regions in RHIC. A beam experiment of measuring linear coupling has been performed in RHIC during its 2003 run, and the analysis of the experimental data is discussed in this paper.

BAI,M.PILAT,F.SATOGATA,T.TOMAS,R.

2002-05-12T23:59:59.000Z

237

DESIGN FOR AN AUTOGRAPHICALLY RECORDING TENSILE MACHINE  

SciTech Connect

An improved "hard" type tensile machine is described, designed primarily for metallurgical usage. Compactness and mechanical simplicity are combined with maximum accessibility of the load measuring device and specimen, and the load is measured with an electro-mechanical dynamometer which is easily adapted into a system for autographically recording ihe load-elongaticn curve. The machine should be particularly useful for dry-box or hot-cell work. (auth)

Adams, M.A.

1959-10-01T23:59:59.000Z

238

Bio-Inspired Computing Tissues: Towards Machines that Evolve, Grow, and Learn  

E-Print Network (OSTI)

Biological inspiration in the design of computing machines could allow the creation of new machines with promising characteristics such as fault-tolerance, self-replication or cloning, reproduction, evolution, adaptation and learning, and growth. The aim of this paper is to introduce bio-inspired computing tissues that might constitute a key concept for the implementation of "living" machines. We first present a general overview of bio-inspired systems and the POE model that classifies bio-inspired machines along three axes. The Embryonics project---inspired by some of the basic processes of molecular biology---is described by means of the BioWatch application, a fault-tolerant and self-repairable watch. The main characteristics of the Embryonics project are the multicellular organization, the cellular di#erentiation, and the self-repair capabilities. The BioWall is intended as a reconfigurable computing tissue capable of interacting with its environment by means of a large number of touch-sensitive elements coupled with a color displays. For illustrative purposes, a large-scale implementation of the BioWatch on the BioWall's computational tissue is presented. We conclude the paper with a description of bio-inspired computing tissues and POEtic machines. 1

C. Teuscher; D. Mange; A. Stauffer; G. Tempesti

2001-01-01T23:59:59.000Z

239

Fluid---structure interaction modeling of wind turbines: simulating the full machine  

Science Conference Proceedings (OSTI)

In this paper we present our aerodynamics and fluid---structure interaction (FSI) computational techniques that enable dynamic, fully coupled, 3D FSI simulation of wind turbines at full scale, and in the presence of the nacelle and tower (i.e., simulation ... Keywords: ALE-VMS method, Fluid---structure interaction, Full machine, NREL 5 MW offshore, Rotor---tower interaction, Sliding-interface formulation, Wind turbine aerodynamics

Ming-Chen Hsu; Yuri Bazilevs

2012-12-01T23:59:59.000Z

240

Baseline Test Specimen Machining Report  

SciTech Connect

The Next Generation Nuclear Plant (NGNP) Project is tasked with selecting a high temperature gas reactor technology that will be capable of generating electricity and supplying large amounts of process heat. The NGNP is presently being designed as a helium-cooled high temperature gas reactor (HTGR) with a large graphite core. The graphite baseline characterization project is conducting the research and development (R&D) activities deemed necessary to fully qualify nuclear-grade graphite for use in the NGNP reactor. Establishing nonirradiated thermomechanical and thermophysical properties by characterizing lot-to-lot and billet-to-billet variations (for probabilistic baseline data needs) through extensive data collection and statistical analysis is one of the major fundamental objectives of the project. The reactor core will be made up of stacks of graphite moderator blocks. In order to gain a more comprehensive understanding of the varying characteristics in a wide range of suitable graphites, any of which can be classified as “nuclear grade,” an experimental program has been initiated to develop an extensive database of the baseline characteristics of numerous candidate graphites. Various factors known to affect the properties of graphite will be investigated, including specimen size, spatial location within a graphite billet, specimen orientation within a billet (either parallel to [P] or transverse to [T] the long axis of the as-produced billet), and billet-to-billet variations within a lot or across different production lots. Because each data point is based on a certain position within a given billet of graphite, particular attention must be paid to the traceability of each specimen and its spatial location and orientation within each billet. The evaluation of these properties is discussed in the Graphite Technology Development Plan (Windes et. al, 2007). One of the key components in the evaluation of these graphite types will be mechanical testing on specimens drawn from carefully controlled sections of each billet. To this end, this report will discuss the machining of the first set of test specimens that will be evaluated in this program through tensile, compressive, and flexural testing. Validation that the test specimens have been produced to the tolerances required by the applicable ASTM standards, and to the quality control levels required by this program, will demonstrate the viability of sending graphite to selected suppliers that will provide valuable and certifiable data to future data sets that are integral to the NGNP program and beyond.

mark Carroll

2009-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Nonlinear coupling of nano mechanical resonators to Josephson quantum circuits  

E-Print Network (OSTI)

We propose a technique to couple the position operator of a nano mechanical resonator to a SQUID device by modulating its magnetic flux bias. By tuning the magnetic field properly, either linear or quadratic couplings can be realized, with a discretely adjustable coupling strength. This provides a way to realize coherent nonlinear effects in a nano mechanical resonator by coupling it to a Josephson quantum circuit. As an example, we show how squeezing of the nano mechanical resonator state can be realized with this technique. We also propose a simple method to measure the uncertainty in the position of the nano mechanical resonator without quantum state tomography.

Xingxiang Zhou; Ari Mizel

2006-05-01T23:59:59.000Z

242

Machine Maintenance Integrated Performance Support System  

SciTech Connect

The objectives of this partnership project were to develop a preventive maintenance checklist program, a troubleshooting system for the Vertical Turning Center (VTC)-5, an on-line manual, and to integrate these components with a custom browser that would run on the VTC-5 machine's controller and would support future internet/intranet delivery. Kingsbury provided subject matter experts from engineering, manufacturing, and technical support. They also provided photographs, schematics, and CAD drawings, which AlliedSignal Federal Manufacturing and Technologies (ASFM and T) digitized for use in the final program. Information from The Kingsbury troubleshooting experts were interviewed regarding symptoms and root causes of system malfunctions This knowledge was captured and from it, fault trees were developed. These trees were then incorporated into the EPSS as a troubleshooting tool. The troubleshooting portion of the system presents simple questions to the machine operator in order to determine the likely cause or causes of malfunctions and then recommends systematic corrective actions. The on-line reference manual, covering operations and maintenance, provides text and illustrations to the machine operator in a traditional structure, but additionally offers the capability to search voluminous amounts of technical data and retrieve specific information on request. The maintenance portion of the EPSS includes checklists that are displayed daily, weekly, monthly, and annually, as appropriate, on the VTC-5 controller screen. The controller software is unavailable for machining parts until the machine tool operator goes through and checks off all of the checklist items. This project provided the team with a detailed understanding of the knowledge and information required to produce and support advanced machine tools. In addition, it resulted in the design and construction of a prototype VTC-5 EPSS containing all the logic and interfaces necessary to integrate operations and maintenance information from other Kingsbury machine tools.

Bohley, M.C.; Schwartz, M.E.

1998-03-11T23:59:59.000Z

243

DISCONNECTING OPEN SOLAR MAGNETIC FLUX  

SciTech Connect

Disconnection of open magnetic flux by reconnection is required to balance the injection of open flux by coronal mass ejections and other eruptive events. Making use of recent advances in heliospheric background subtraction, we have imaged many abrupt disconnection events. These events produce dense plasma clouds whose distinctive shape can now be traced from the corona across the inner solar system via heliospheric imaging. The morphology of each initial event is characteristic of magnetic reconnection across a current sheet, and the newly disconnected flux takes the form of a 'U-'shaped loop that moves outward, accreting coronal and solar wind material. We analyzed one such event on 2008 December 18 as it formed and accelerated at 20 m s{sup -2} to 320 km s{sup -1}, thereafter expanding self-similarly until it exited our field of view 1.2 AU from the Sun. From acceleration and photometric mass estimates we derive the coronal magnetic field strength to be 8 {mu}T, 6 R{sub Sun} above the photosphere, and the entrained flux to be 1.6 Multiplication-Sign 10{sup 11} Wb (1.6 Multiplication-Sign 10{sup 19} Mx). We model the feature's propagation by balancing inferred magnetic tension force against accretion drag. This model is consistent with the feature's behavior and accepted solar wind parameters. By counting events over a 36 day window, we estimate a global event rate of 1 day{sup -1} and a global solar minimum unsigned flux disconnection rate of 6 Multiplication-Sign 10{sup 13} Wb yr{sup -1} (6 Multiplication-Sign 10{sup 21} Mx yr{sup -1}) by this mechanism. That rate corresponds to {approx} - 0.2 nT yr{sup -1} change in the radial heliospheric field at 1 AU, indicating that the mechanism is important to the heliospheric flux balance.

DeForest, C. E.; Howard, T. A.; McComas, D. J. [Southwest Research Institute, 1050 Walnut Street Suite 300, Boulder, CO 80302 (United States)

2012-01-20T23:59:59.000Z

244

High flux solar energy transformation  

DOE Patents (OSTI)

Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes. 7 figures.

Winston, R.; Gleckman, P.L.; O' Gallagher, J.J.

1991-04-09T23:59:59.000Z

245

High flux solar energy transformation  

DOE Patents (OSTI)

Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes.

Winston, Roland (Chicago, IL); Gleckman, Philip L. (Chicago, IL); O' Gallagher, Joseph J. (Flossmoor, IL)

1991-04-09T23:59:59.000Z

246

International Conference on Machine Control & Guidance 2008 1 Automatic Guidance of Track Laying Machines with  

E-Print Network (OSTI)

laying machines, coordinate systems, error detection, work process driven data management, quality. Its outstanding result, the track management system Toporail, was developed under the operational lead on Machine Control & Guidance 2008 5 Figure 5: Maintenance process driven data management: Data updates

247

Cost Effective Machining Of Ceramics (CEMOC)  

SciTech Connect

The purpose of the CEMOC program was to support U.S. industry needs in fabricating precision components, from difficult to machine materials, while maintaining and enhancing the precision manufacturing skills of the Oak Ridge Complex. Oak Ridge and partner company personnel worked in a team relationship wherein each contributed equally to the success of the program. In general, Oak Ridge contributed a wider range of expertise to a given task while the companies provided operations-specific equipment and shop-floor services. Process control technologies, machining procedures and parameters, and coolant-related environmental tasks were the primary focus areas. The companies were very pleased with the results of the CRADAs and are planning on continuing the relationships. Finish machining operations contribute the majority of the costs associated with fabricating high quality ceramic products. These components are typically used in harsh environments such as diesel engines, defense machinery, and automotive components. The required finishing operations involve a variety of technologies including process controls, machine coolants, product certification, etc. and are not limited only to component grinding methods. The broad range of manufacturing problem solving expertise available in Oak Ridge provided resources that were far beyond what are typically available to the CRADA partners. These partners contributed equipment, such as state-of-the-art machine tools, and operation-specific experience base. In addition, addressing these challenging tasks enabled Oak Ridge personnel to maintain familiarity with rapidly advancing technologies, such as those associated with computer control systems.

Barkman, W.E.

1997-04-18T23:59:59.000Z

248

Trunnion Collar Removal Machine - Gap Analysis Table  

SciTech Connect

The purpose of this document is to review the existing the trunnion collar removal machine against the ''Nuclear Safety Design Bases for License Application'' (NSDB) [Ref. 10] requirements and to identify codes and standards and supplemental requirements to meet these requirements. If these codes and standards can not fully meet these requirements then a ''gap'' is identified. These gaps will be identified here and addressed using the ''Trunnion Collar Removal Machine Design Development Plan'' [Ref. 15]. The codes and standards, supplemental requirements, and design development requirements for the trunnion collar removal machine are provided in the gap analysis table (Appendix A, Table 1). Because the trunnion collar removal machine is credited with performing functions important to safety (ITS) in the NSDB [Ref. 10], design basis requirements are applicable to ensure equipment is available and performs required safety functions when needed. The gap analysis table is used to identify design objectives and provide a means to satisfy safety requirements. To ensure that the trunnion collar removal machine performs required safety functions and meets performance criteria, this portion of the gap analysis tables supplies codes and standards sections and the supplemental requirements and identifies design development requirements, if needed.

M. Johnson

2005-06-27T23:59:59.000Z

249

Trapped-flux superconducting memory  

Science Conference Proceedings (OSTI)

A memory cell based on trapped flux in superconductors has been built and tested. The cell is constructed entirely by vacuum evaporation of thin films and can be selected by coincident current or by other techniques, with drive-current requirements less ...

J. W. Crowe

1957-10-01T23:59:59.000Z

250

The Boardman Regional Flux Experiment  

Science Conference Proceedings (OSTI)

A field campaign was carried out near Boardman, Oregon, to study the effects of subgrid-scale variability of sensible-and latent-heat fluxes on surface boundary-layer properties. The experiment involved three U.S. Department of Energy ...

J. C. Doran; J. M. Hubbe; R. R. Kirkham; W. J. Shaw; C. D. Whiteman; F. J. Barnes; D. Cooper; W. Porch; R. L. Coutler; D. R. Cook; R. L. Hart; W. Gao; T. J. Martin; J. D. Shannon; T. L. Crawford; D. D. Baldocchi; R. J. Dobosy; T. P. Meyers; L. Balick; W. A. Dugas; R. Hicks; L. Fritschen; L. Hipps; E. Swiatek; K. E. Kunkel

1992-11-01T23:59:59.000Z

251

The Antarctic Zone Flux Experiment  

Science Conference Proceedings (OSTI)

In winter the eastern Weddell Sea in the Atlantic sector of the Southern Ocean hosts some of the most dynamic air-ice-sea interactions found on earth. Sea ice in the region is kept relatively thin by heat flux from below, maintained by upper-...

M. G. McPhee; S. F. Ackley; P. Guest; T. P. Stanton; B. A. Huber; D. G. Martinson; J. H. Morison; R. D. Muench; L. Padman

1996-06-01T23:59:59.000Z

252

Superconducting flux flow digital circuits  

DOE Patents (OSTI)

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs) are disclosed. Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics. 8 figs.

Hietala, V.M.; Martens, J.S.; Zipperian, T.E.

1995-02-14T23:59:59.000Z

253

Superconducting flux flow digital circuits  

DOE Patents (OSTI)

A NOR/inverter logic gate circuit and a flip flop circuit implemented with superconducting flux flow transistors (SFFTs). Both circuits comprise two SFFTs with feedback lines. They have extremely low power dissipation, very high switching speeds, and the ability to interface between Josephson junction superconductor circuits and conventional microelectronics.

Hietala, Vincent M. (Placitas, NM); Martens, Jon S. (Sunnyvale, CA); Zipperian, Thomas E. (Albuquerque, NM)

1995-01-01T23:59:59.000Z

254

Modeling the Sun's open magnetic flux and the heliospheric current sheet  

E-Print Network (OSTI)

By coupling a solar surface flux transport model with an extrapolation of the heliospheric field, we simulate the evolution of the Sun's open magnetic flux and the heliospheric current sheet (HCS) based on observational data of sunspot groups since 1976. The results are consistent with measurements of the interplanetary magnetic field near Earth and with the tilt angle of the HCS as derived from extrapolation of the observed solar surface field. This opens the possibility for an improved reconstruction of the Sun's open flux and the HCS into the past on the basis of empirical sunspot data.

Jiang, J; Schmitt, D; Schuessler, M

2009-01-01T23:59:59.000Z

255

Machine Overview | Argonne Leadership Computing Facility  

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

BG/Q Drivers Status Machine Overview Machine Partitions Torus Network Data Storage & File Systems Compiling & Linking Queueing & Running Jobs Data Transfer Debugging & Profiling Performance Tools & APIs Software & Libraries IBM References Intrepid/Challenger/Surveyor Tukey Eureka / Gadzooks Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Machine Overview Blue Gene /Q systems are composed of login nodes, I/O nodes, and compute nodes. Login Nodes Login and compile nodes are IBM Power 7-based systems running Red Hat Linux and are the user's interface to a Blue Gene/Q system. This is where users login, edit files, compile, and submit jobs. These are shared resources

256

RHIC Machine/Detector Planning Meetings  

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

RHIC Machine/Detector Planning Meeting RHIC Machine/Detector Planning Meeting RHIC STAR PHENIX RHIC STAR PHENIX BNL Home Page C-AD Home Page C-AD ES&F Division BNL Physics Department RHIC Run History Super Conducting Magnet Division Run 14 Scheduling Physicist Home Page NPP PAC Run 13 Recommendations CAD Power Run 11-Run 13 Off-line CNI Polarization Results APEX for Run 13 RHIC Machine/Detector Meetings for Run 12 FY02-Present C-AD Energy Use Plots Cryo Power Run 11-Run 13 H-jet Target Results APEX Nov. 19-20, 2012 Workshop for Run 13 RHIC Run 13 Run Home Page (pp) FY10-Present BNL Energy Use Plot Cryo Temperatures Latest Luminosity Plots BNL Current Energy Use (BNL Intranet only and requires password) RHIC Retreat 2012

257

Gallant Precision Machining GPM | Open Energy Information  

Open Energy Info (EERE)

Gallant Precision Machining GPM Gallant Precision Machining GPM Jump to: navigation, search Name Gallant Precision Machining (GPM) Place Hsinchu, Taiwan Sector Solar Product Engaged in the design and manufacture of solar cell manufacturing equpiment. Coordinates 24.69389°, 121.148064° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":24.69389,"lon":121.148064,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

258

Micro-machined thermo-conductivity detector  

DOE Patents (OSTI)

A micro-machined thermal conductivity detector for a portable gas chromatograph. The detector is highly sensitive and has fast response time to enable detection of the small size gas samples in a portable gas chromatograph which are in the order of nanoliters. The high sensitivity and fast response time are achieved through micro-machined devices composed of a nickel wire, for example, on a silicon nitride window formed in a silicon member and about a millimeter square in size. In addition to operating as a thermal conductivity detector, the silicon nitride window with a micro-machined wire therein of the device can be utilized for a fast response heater for PCR applications.

Yu, Conrad (Antioch, CA)

2003-01-01T23:59:59.000Z

259

Multi-winding homopolar electric machine  

SciTech Connect

A multi-winding homopolar electric machine and method for converting between mechanical energy and electrical energy. The electric machine includes a shaft defining an axis of rotation, first and second magnets, a shielding portion, and a conductor. First and second magnets are coaxial with the shaft and include a charged pole surface and an oppositely charged pole surface, the charged pole surfaces facing one another to form a repulsive field therebetween. The shield portion extends between the magnets to confine at least a portion of the repulsive field to between the first and second magnets. The conductor extends between first and second end contacts and is toroidally coiled about the first and second magnets and the shield portion to develop a voltage across the first and second end contacts in response to rotation of the electric machine about the axis of rotation.

Van Neste, Charles W

2012-10-16T23:59:59.000Z

260

Indian Ocean Dipolelike Variability in the CSIRO Mark 3 Coupled Climate Model  

Science Conference Proceedings (OSTI)

Coupled ocean–atmosphere variability in the tropical Indian Ocean is explored with a multicentury integration of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) Mark 3 climate model, which runs without flux adjustment. ...

Wenju Cai; Harry H. Hendon; Gary Meyers

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

The Impact of Rapid Wind Variability upon Air–Sea Thermal Coupling  

Science Conference Proceedings (OSTI)

The basic effect of extratropical atmosphere–ocean thermal coupling is to enhance the variance of both anomalous sea surface temperatures (SSTs) and air temperatures (AIRT) due to a decreased energy flux between the atmosphere and ocean, called ...

Philip Sura; Matthew Newman

2008-02-01T23:59:59.000Z

262

New and Underutilized Technology: Vending Machine Occupancy Sensors |  

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

Vending Machine Occupancy Sensors Vending Machine Occupancy Sensors New and Underutilized Technology: Vending Machine Occupancy Sensors October 7, 2013 - 9:09am Addthis The following information outlines key deployment considerations for vending machine occupancy sensors within the Federal sector. Benefits Vending machine occupancy sensors detect when no people are in the vicinity and powers down beverage vending machines. These systems do not completely turn off compressor, but reduce their run times. Application Vending machine occupancy sensors are applicable in most building categories where vending machines are present. Key Factors for Deployment Occupancy sensors or similar features should be an integral part of new vending machine purchases. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

263

High slot utilization systems for electric machines  

DOE Patents (OSTI)

Two new High Slot Utilization (HSU) Systems for electric machines enable the use of form wound coils that have the highest fill factor and the best use of magnetic materials. The epoxy/resin/curing treatment ensures the mechanical strength of the assembly of teeth, core, and coils. In addition, the first HSU system allows the coil layers to be moved inside the slots for the assembly purpose. The second system uses the slided-in teeth instead of the plugged-in teeth. The power density of the electric machine that uses either system can reach its highest limit.

Hsu, John S (Oak Ridge, TN)

2009-06-23T23:59:59.000Z

264

Passive machine augmented composite for multifunctional properties  

E-Print Network (OSTI)

This dissertation studies by experiment and numerical analysis an advanced composite material (Machine Augmented Composite or MAC) for enhancement of the passive damping while maintaining its stiffness. This MAC is composed of a pre-buckled wall structure placed within a viscoelastic matrix. The pre-buckled machine can contain viscous fluids for additional energy dissipation. For the experiments, the MAC was fabricated by using rigid and soft polyurethane as a machine and matrix material respectively. Various viscosity fluids (0.83 ~ 4730 cps) filled the inner-channel of the machine structure. Dynamic properties such as tan ?? and the loss modulus (E") of the composite were measured and compared with those of a homogeneous matrix sample over a frequency range of 0.1 to 100 Hz at room temperature through load-controlled cyclic testing. Measured tan ?? and loss modulus values for the composite were higher than those of the matrix alone in the 1 to 40 Hz range. However the viscous fluid effects on the overall damping properties were small. The performance of a theoretical MAC was explored through numerical analysis. The amount of inner-channel gap closure was calculated for various matrix Poisson??s ratios, for various Young??s modulus ratios between the machine and matrix (Emachine/Ematrix), and for the volume fraction of the machines. The most desirable performance of the composite was obtained when the matrix Poisson??s ratio was 0.49, and there was interaction between the Emachine/Ematrix and the volume fraction of the machines. Also the proper volume fraction range of the machine was predicted to be between 0.15 and 0.2 for the lamina shape MAC. Based upon the analysis, a sandwich structure MAC was fabricated and tested. This composite showed 11 times higher stiffness than the matrix without loosing the matrix damping property. This dissertation shows that the research met these objectives: 1) the MAC concept is effective for passive damping of vibrations, 2) that material combinations studied here had optimal combinations for best performance, and 3) that this is a promising field study for future passive and active materials development.

Kim, Jong Hyun

2005-08-01T23:59:59.000Z

265

Quantum Fusion of Domain Walls with Fluxes  

E-Print Network (OSTI)

We study how fluxes on the domain wall world volume modify quantum fusion of two distant parallel domain walls into a composite wall. The elementary wall fluxes can be separated into parallel and antiparallel components. The parallel component affects neither the binding energy nor the process of quantum merger. The antiparallel fluxes, instead, increase the binding energy and, against naive expectations, suppress quantum fusion. In the small flux limit we explicitly find the bounce solution and the fusion rate as a function of the flux. We argue that at large (antiparallel) fluxes there exists a critical value of the flux (versus the difference in the wall tensions), which switches off quantum fusion altogether. This phenomenon of flux-related wall stabilization is rather peculiar: it is unrelated to any conserved quantity. Our consideration of the flux-related all stabilization is based on substantiated arguments that fall short of complete proof.

S. Bolognesi; M. Shifman; M. B. Voloshin

2009-07-20T23:59:59.000Z

266

Solar Glare and Flux Mapping  

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

SGFMT Home SGFMT Home Register Glare Analysis Solar Glare Hazard Analysis SGHAT 1.0 (old) Empirical Glare Analysis Analytical Glare Analysis PHLUX Mapping Reflectivity Calculator References Contact Us Solar Glare and Flux Mapping Tools Measurement of reflected solar irradiance is receiving significant attention by industry, military, and government agencies to assess potential impacts of glint and glare from growing numbers of solar power installations around the world. In addition, characterization of the incident solar flux distribution on central receivers for concentrating solar power applications is important to monitor and maintain system performance. This website contains tools to evaluate solar glare and receiver irradiance. Register to access the tools Solar Glare Hazard Analysis Tool

267

CSP Theorems for Communicating B Machines  

E-Print Network (OSTI)

CSP Theorems for Communicating B Machines Steve Schneider and Helen Treharne Technical Report CSD #12;#12;Introduction 1 Abstract. Recent work on combining CSP and B has provided ways of describing sys- tems comprised of components described in both B (to express requirements on state) and CSP (to

Doran, Simon J.

268

MACHINE SHOP SAFETY POLICY THE WYSS INSTITUTE  

E-Print Network (OSTI)

Health 210 Lincoln Street 617-432-1370 617-355-7580 617-632-0710 617-632-3016 617-353-6630 617 Research Building (NRB) Security: For lockouts and escorts 617-432-6119 Harvard Custodial Services 617 in the Wyss Institute for Biologically Inspired Engineering (Wyss Institute) light machine shops in the Center

Church, George M.

269

Rankine cycle machines for solar cooling  

DOE Green Energy (OSTI)

A vigorous effort to develop and demonstrate practical uses of solar energy to heat and cool buildings, to process agricultural products, and to provide thermal and electrical energy for industry has been initiated. One significant part of this effort is the research, development, and demonstration of Rankine cycle machines using fluids heated by solar energy. Recent developments in three such devices are discussed briefly.

Weathers, H.M.

1978-08-01T23:59:59.000Z

270

Data management for the world's largest machine  

Science Conference Proceedings (OSTI)

The world's largest machine, the Large Hadron Collider, will have four detectors whose output is expected to answer fundamental questions about the universe. The ATLAS detector is expected to produce 3.2 PB of data per year which will be distributed ...

Sigve Haug; Farid Ould-Saada; Katarina Pajchel; Alexander L. Read

2006-06-01T23:59:59.000Z

271

Gas quantitative analysis with support vector machine  

Science Conference Proceedings (OSTI)

Gas sensor array is an important part of electronic nose. The gas analysis performance of electronic nose is affected badly by the cross sensitivity of gas sensor array. In order to solve the problem of the cross sensitivity, in this work a new method ... Keywords: electronic nose, gas mixture, quantitative analysis, support vector machine

Liang Xie; Xiaodong Wang

2009-06-01T23:59:59.000Z

272

Performance implications of virtualizing multicore cluster machines  

Science Conference Proceedings (OSTI)

High performance computers are typified by cluster machines constructed from multicore nodes and using high performance interconnects like Infiniband. Virtualizing such 'capacity computing' platforms implies the shared use of not only the nodes and node ... Keywords: Infiniband, high-performance computing, virtualization

Adit Ranadive; Mukil Kesavan; Ada Gavrilovska; Karsten Schwan

2008-03-01T23:59:59.000Z

273

HEART SMART NUTRITION Be a Lean Machine  

E-Print Network (OSTI)

Lesson 6 HEART SMART NUTRITION Be a Lean Machine This Heart Smart Nutrition series can help you Heart, Lung and Blood Institute). Physical activity increases your metabolic rate, which helps to burn more calories. Plus it helps the heart and lungs function to full capacity. Exercise also helps raise

274

Preprocessing unbalanced data using support vector machine  

Science Conference Proceedings (OSTI)

This paper deals with the application of support vector machine (SVM) to deal with the class imbalance problem. The objective of this paper is to examine the feasibility and efficiency of SVM as a preprocessor. Our study analyzes different classification ... Keywords: COIL data, Hybrid method, Preprocessor, SVM, Unbalanced data

M. A. H. Farquad; Indranil Bose

2012-04-01T23:59:59.000Z

275

Coupled transport processes in semipermeable media  

DOE Green Energy (OSTI)

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

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

1990-04-01T23:59:59.000Z

276

Design of a desktop milling machine for fabrication in an introductory machine shop class  

E-Print Network (OSTI)

The purpose of this research is to design, fabricate and test the electromechanical subsystem of a CNC milling machine kit. Unlike all other CNC kits on the market, the purpose of this kit is to teach students the principles ...

Lorenc, Dan (Daniel P.)

2010-01-01T23:59:59.000Z

277

Urban Cloud Condensation Nuclei Spectral Flux  

Science Conference Proceedings (OSTI)

The cloud condensation nuclei (CCN) spectral flux and the condensation nuclei (CN) flux from an urban area are determined from in situ aircraft measurements at Denver, Colorado. The concentration differences between upwind and downwind cross ...

Paul R. Frisbie; James G. Hudson

1993-04-01T23:59:59.000Z

278

When Are Eddy Tracer Fluxes Directed Downgradient?  

Science Conference Proceedings (OSTI)

The mechanisms controlling the direction of eddy tracer fluxes are examined using eddy-resolving isopycnic experiments for a cyclic zonal channel. Eddy fluxes are directed downgradient on average when either (i) there is a Lagrangian increase in ...

Chris Wilson; Richard G. Williams

2006-02-01T23:59:59.000Z

279

Permanent-magnet-less machine having an enclosed air gap  

DOE Patents (OSTI)

A permanent magnet-less, brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by an alternating current. An uncluttered rotor disposed within the magnetic rotating field is spaced apart from the stator to form an air gap relative to an axis of rotation. A stationary excitation core spaced apart from the uncluttered rotor by an axial air gap and a radial air gap substantially encloses the stationary excitation core. Some permanent magnet-less, brushless synchronous systems include stator core gaps to reduce axial flux flow. Some permanent magnet-less, brushless synchronous systems include an uncluttered rotor coupled to outer laminations. The quadrature-axis inductance may be increased in some synchronous systems. Some synchronous systems convert energy such as mechanical energy into electrical energy (e.g., a generator); other synchronous systems may convert any form of energy into mechanical energy (e.g., a motor).

Hsu, John S. (Oak Ridge, TN)

2012-02-07T23:59:59.000Z

280

Permanent-magnet-less machine having an enclosed air gap  

SciTech Connect

A permanent magnet-less, brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by an alternating current. An uncluttered rotor disposed within the magnetic rotating field is spaced apart from the stator to form an air gap relative to an axis of rotation. A stationary excitation core spaced apart from the uncluttered rotor by an axial air gap and a radial air gap substantially encloses the stationary excitation core. Some permanent magnet-less, brushless synchronous systems include stator core gaps to reduce axial flux flow. Some permanent magnet-less, brushless synchronous systems include an uncluttered rotor coupled to outer laminations. The quadrature-axis inductance may be increased in some synchronous systems. Some synchronous systems convert energy such as mechanical energy into electrical energy (e.g., a generator); other synchronous systems may convert any form of energy into mechanical energy (e.g., a motor).

Hsu, John S.

2013-03-05T23:59:59.000Z

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


281

High-flux solar photon processes  

DOE Green Energy (OSTI)

This study was commissioned by the National Renewable Energy Laboratory (NREL) for the purpose of identifying high-flux photoprocesses that would lead to beneficial national and commercial applications. The specific focus on high-flux photoprocesses is based on the recent development by NREL of solar concentrator technology capable of delivering record flux levels. We examined photolytic and photocatalytic chemical processes as well as photothermal processes in the search for processes where concentrated solar flux would offer a unique advantage. 37 refs.

Lorents, D C; Narang, S; Huestis, D C; Mooney, J L; Mill, T; Song, H K; Ventura, S [SRI International, Menlo Park, CA (United States)

1992-06-01T23:59:59.000Z

282

CRTF Real-Time Aperture Flux system  

SciTech Connect

The Real-Time Aperture Flux system (TRAF) is a test measurement system designed to determine the input power/unit area (flux density) during solar experiments conducted at the Central Receiver Test Facility, Sandia National Laboratories, Albuquerque, New Mexico. The RTAF is capable of using both thermal sensors and photon sensors to determine the flux densities in the RTAF measuring plane. These data are manipulated in various ways to derive input power and flux density distribution to solar experiments.

Davis, D.B.

1980-01-01T23:59:59.000Z

283

Tolerating latency in replicated state machines through client speculation  

Science Conference Proceedings (OSTI)

Replicated state machines are an important and widely-studied methodology for tolerating a wide range of faults. Unfortunately, while replicas should be distributed geographically for maximum fault tolerance, current replicated state machine protocols ...

Benjamin Wester; James Cowling; Edmund B. Nightingale; Peter M. Chen; Jason Flinn; Barbara Liskov

2009-04-01T23:59:59.000Z

284

Proceedings of the 25th international conference on Machine learning  

Science Conference Proceedings (OSTI)

This volume contains the papers accepted to the 25th International Conference on Machine Learning (ICML 2008). ICML is the annual conference of the International Machine Learning Society (IMLS), and provides a venue for the presentation and discussion ...

William Cohen; Andrew McCallum; Sam Roweis

2008-07-01T23:59:59.000Z

285

Forecasting electricity demand by hybrid machine learning model  

Science Conference Proceedings (OSTI)

This paper proposes a hybrid machine learning model for electricity demand forecasting, based on Bayesian Clustering by Dynamics (BCD) and Support Vector Machine (SVM). In the proposed model, a BCD classifier is firstly applied to cluster the input data ...

Shu Fan; Chengxiong Mao; Jiadong Zhang; Luonan Chen

2006-10-01T23:59:59.000Z

286

The RWTH Aachen machine translation system for WMT 2012  

Science Conference Proceedings (OSTI)

This paper describes the statistical machine translation (SMT) systems developed at RWTH Aachen University for the translation task of the NAACL 2012 Seventh Workshop on Statistical Machine Translation (WMT 2012). We participated in the evaluation ...

Matthias Huck; Stephan Peitz; Markus Freitag; Malte Nuhn; Hermann Ney

2012-06-01T23:59:59.000Z

287

Virtual cutter path display for dental milling machine  

E-Print Network (OSTI)

This paper presents the prototype of a mixed reality system using the computer controlled dental milling machine, which is called MRD Mill. First, overview of the core dental milling machine developed in this study is ...

Ito, Teruaki

288

Machine Learning Forensics for Law Enforcement, Security, and Intelligence  

Science Conference Proceedings (OSTI)

Increasingly, crimes and fraud are digital in nature, occurring at breakneck speed and encompassing large volumes of data. To combat this unlawful activity, knowledge about the use of machine learning technology and software is critical. Machine Learning ...

Jesus Mena

2011-06-01T23:59:59.000Z

289

Seattle City Light - Vending Machine Rebate Program | Department...  

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

of VendingMiser Energy Efficient Vending Machines. VendingMiser reduces the energy consumption of cold drink vending machines by using an occupancy sensor to power down the...

290

A Bahadur Representation of the Linear Support Vector Machine  

Science Conference Proceedings (OSTI)

The support vector machine has been successful in a variety of applications. Also on the theoretical front, statistical properties of the support vector machine have been studied quite extensively with a particular attention to its Bayes risk consistency ...

Ja-Yong Koo; Yoonkyung Lee; Yuwon Kim; Changyi Park

2008-06-01T23:59:59.000Z

291

Maximizing Buoyancy Flux across Layered Geostrophic Sections  

Science Conference Proceedings (OSTI)

For layered analogues of the ocean stratification, the problem of maximizing buoyancy flux across a section with zero mass flux is considered. The two layer situation on an f-plane is particularly simple and it is shown that the buoyancy flux is ...

Nelson G. Hogg; Henry M. Stommel

1990-02-01T23:59:59.000Z

292

Magnesium: Digital Resource Center - ARTICLE: Safe Machining of ...  

Science Conference Proceedings (OSTI)

Sep 7, 2007... Other ==== Miscellaneous Digital Resources in Magnesium. Spacer ... Topic Title: ARTICLE: Safe Machining of Magnesium Parts by Cutting ...

293

NIST Open Machine Translation (OpenMT) Evaluation  

Science Conference Proceedings (OSTI)

DARPA TIDES Machine Translation 2004 Evaluation (MT04). Current and Recent DARPA TIDES MT Activities. MT04 takes ...

294

A Reordering Model for Phrase-Based Machine Translation  

Science Conference Proceedings (OSTI)

This paper presents a new method for reordering in phrase based statistical machine translation (PBSMT). Our method is based on previous chunk-level reordering methods for PBSMT. Our method is a global reordering. First, we parse the source language ... Keywords: Machine Translation, Natural Language Processing, Phrase-based Statistical Machine Translation

Vinh Nguyen; Thai Phuong Nguyen; Akira Shimazu; Minh Nguyen

2008-08-01T23:59:59.000Z

295

Argument based machine learning in a medical domain  

Science Conference Proceedings (OSTI)

Argument Based Machine Learning (ABML) is a new approach to machine learning in which the learning examples can be accompanied by arguments. The arguments for specific examples are a special form of expert's knowledge which the expert uses to substantiate ... Keywords: Argument Based Machine Learning, Bacterial Infections, Geriatric Population, Rule Learning

Jure Žabkar; Martin Možina; Jerneja Vide?nik; Ivan Bratko

2006-05-01T23:59:59.000Z

296

Interacting meaningfully with machine learning systems: Three experiments  

Science Conference Proceedings (OSTI)

Although machine learning is becoming commonly used in today's software, there has been little research into how end users might interact with machine learning systems, beyond communicating simple ''right/wrong'' judgments. If the users themselves could ... Keywords: Explanations, Intelligent user interfaces, Machine learning, Rich feedback

Simone Stumpf; Vidya Rajaram; Lida Li; Weng-Keen Wong; Margaret Burnett; Thomas Dietterich; Erin Sullivan; Jonathan Herlocker

2009-08-01T23:59:59.000Z

297

Improving energy efficiency of buffer cache in virtual machines  

Science Conference Proceedings (OSTI)

Main memory contributes a large fraction of energy consumption in powerful servers running virtualization software to support concurrent virtual machines (VMs). Furthermore, data-intensive applications executing inside virtual machines increase the demand ... Keywords: Buffer Cache,Virtual Machine,Energy Management

Lei Ye; Chris Gniady

2012-06-01T23:59:59.000Z

298

Long Term Climate Simulations Using an Adaptable Virtual Machine.  

E-Print Network (OSTI)

the DOE NERSC, a re­ mote machine could be added to the virtual machine until the NERSC account test bed. Another is to include the NERSC machines at LBL, the Cray C90 and the Cray T3E connections, particularly into NERSC, would be important for the success of this project. The latency

299

Constructive hidden nodes selection of extreme learning machine for regression  

Science Conference Proceedings (OSTI)

In this paper, we attempt to address the architectural design of ELM regressor by applying a constructive method on the basis of ELM algorithm. After the nonlinearities of ELM network are fixed by randomly generating the parameters, the network will ... Keywords: Constructive method, Error-minimized extreme learning machine, Extreme learning machine, Incremental extreme learning machine

Yuan Lan; Yeng Chai Soh; Guang-Bin Huang

2010-10-01T23:59:59.000Z

300

A real-time virtual machine implementation for small microcontrollers  

Science Conference Proceedings (OSTI)

A way to host a full general purpose virtual machine (VM) interpreter on a very small microcontroller platform is described. This machine provides a comprehensive set of general and enhanced functionality efficiently by abstracting the VM instruction ... Keywords: Microcontrollers, Real-time systems, Virtual machine

W. Roger Davis; Phillip A. Laplante; Bo I. Sandén

2012-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Scheduling a capacitated batch-processing machine to minimize makespan  

Science Conference Proceedings (OSTI)

This paper aims at improving the utilization of a single batch-processing machine. The batch-processing machine can process a batch of jobs, as long as the number of jobs and the total size of all the jobs in a batch do not violate the machine's capacity. ... Keywords: Batch processing, Mathematical modeling, Scheduling, Simulated annealing

Purushothaman Damodaran; Krishnaswami Srihari; Sarah S. Lam

2007-04-01T23:59:59.000Z

302

Virtual Data System on distributed virtual machines in computational grids  

Science Conference Proceedings (OSTI)

This paper presents the work of building a Grid workflow system on distributed virtual machines. A Grid Virtualisation Engine (GVE) is implemented to manage virtual machines as computing resources for Grid applications. The Virtual Data System ... Keywords: compact muon solenoid, distributed virtual machines, grid computing, grid workflow, high energy physics applications, virtual data systems

Lizhe Wang; Gregor Von Laszewski; Jie Tao; Marcel Kunze

2010-09-01T23:59:59.000Z

303

Super-tasks, accelerating Turing machines and uncomputability  

Science Conference Proceedings (OSTI)

Accelerating Turing machines are devices with the same computational structure as Turing machines (TM), but able to perform super-tasks. We ask whether performing super-tasks alone produces more computational power; for example, whether accelerating ... Keywords: Thomson's paradox, accelerating Turing machines, halting problem, super-task

Oron Shagrir

2004-06-01T23:59:59.000Z

304

A generic finite state machine framework for the ACNET control system  

SciTech Connect

A significant level of automation and flexibility has been added to the ACNET control system through the development of a Java-based Finite State Machine (FSM) infrastructure. These FSMs are integrated into ACNET and allow users to easily build, test and execute scripts that have full access to ACNET's functionality. In this paper, a description will be given of the FSM design and its ties to the Java-based Data Acquisition Engine (DAE) framework. Each FSM is part of a client-server model with FSM display clients using Remote Method Invocation (RMI) to communicate with DAE servers heavily coupled to ACNET. A web-based monitoring system that allows users to utilize browsers to observe persistent FSMs will also be discussed. Finally, some key implementations such as the crash recovery FSM developed for the Electron Cooling machine protection system will be presented.

Carmichael, L.; Warner, A.; /Fermilab

2009-10-01T23:59:59.000Z

305

Mechanical design of a desktop milling machine for fabrication in an introductory machining class by Johannes Schneider.  

E-Print Network (OSTI)

The purpose of this research is the mechanical design of a miniature desktop milling machine for use as an alternative class project in MIT's introductory machining course 2.670. This research is important, because a ...

Schneider, Johannes (Johannes A.)

2010-01-01T23:59:59.000Z

306

DIRECT MEASUREMENT OF WATER AND SOLUTE FLUXES USING A PASSIVE SURFACE WATER FLUX METER  

E-Print Network (OSTI)

DIRECT MEASUREMENT OF WATER AND SOLUTE FLUXES USING A PASSIVE SURFACE WATER FLUX METER J Surface Water Flux Meter (PSFM). Current techniques for estimating contaminant mass inputs to impaired flux meter, MS Thesis, UF. This work was supported by the United States Department of Agriculture

Watson, Craig A.

307

Chromo-Electric flux tubes  

E-Print Network (OSTI)

The profiles of the chromo-electric field generated by static quark-antiquark, $Q{\\bar Q}$ and three-quark, $QQQ$ sources are calculated in Coulomb gauge. Using a variational ansatz for the ground state, we show that a flux tube-like structure emerges and combines to the ``Y''-shape field profile for three static quarks. The properties of the chromo-electric field are, however, not expected to be the same as those of the full action density or the Wilson line and the differences are discussed.

Patrick O. Bowman; Adam P. Szczepaniak

2004-03-07T23:59:59.000Z

308

R&D ERL: Machine Protection System  

SciTech Connect

The Machine Protection System (MPS) is a device-safety system that is designed to prevent damage to hardware by generating interlocks, based upon the state of input signals generated by selected sub-system. It exists to protect key machinery such as the 50 kW and 1 MW RF Systems. When a fault state occurs, the MPS is capable of responding with an interlock signal within several microseconds. The Machine Protection System inputs are designed to be fail-safe. In addition, all fault conditions are latched and time-stamped. The ERL MPS is based on a National Instruments hardware platform, and is programmed by utilizing National Instruments development environment for a visual programming language.

Altinbas, Z.

2010-01-01T23:59:59.000Z

309

Long-Term Oscillations in the Coupled Atmosphere–Ocean System and El Niño Phenomenon  

Science Conference Proceedings (OSTI)

The nature of slow oscillations in the coupled atmosphere–ocean system in equatorial regions is investigated with a coupled atmosphere–ocean model in which surface wind stress and surface latent heat flux and other heat inputs associated with SST ...

H. L. Kuo

1989-12-01T23:59:59.000Z

310

Transmission and Conversion of Energy by Coupled Soft Gears  

E-Print Network (OSTI)

Dynamical aspects of coupled deformable gears are investigated to clarify the differences of mechanical properties between the machines consist of hard materials and those of soft materials. In particular, the performances of two functions, the transmission and the conversion of the energy, are compared between the hard and soft gears systems. First, the responses of the coupled gears against a constant torque working on one of gears are focused for two types of couplings; P) a pair gears are coupled, and T) three gears are coupled with forming a regular triangle. In systems with the coupling P), we obtain trivial results that the rotational energy can be transmitted to other gear only if these gears are hard enough. On the other hand, in systems with the coupling T), the transmission of the rotational energy to one of the other gears appears only if these gears are soft enough. Second, we show the responses of this system in which one of gears have contact with a high temperature heat bath and the other gears have contact with a 0 temperature heat bath. With the coupling T), the directional rotations appear in two gears having contact with 0 temperature heat bath. Here, the direction of these rotations change depending on the noise strength.

Akinori Awazu

2005-03-14T23:59:59.000Z

311

Walcot Electric Machines | Open Energy Information  

Open Energy Info (EERE)

Walcot Electric Machines Walcot Electric Machines Jump to: navigation, search Name Walcot Electric Machines Place Bath, United Kingdom Zip BA2 7AY Sector Efficiency Product A spin-out from Bath University which that will develop and licence process relating to high efficiency electric motors for fixed speed applications, and will offer endusers substantial reductions in the cost of operation Coordinates 45.467055°, -98.329279° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.467055,"lon":-98.329279,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

312

Dovetail spoke internal permanent magnet machine  

Science Conference Proceedings (OSTI)

An internal permanent magnet (IPM) machine is provided. The IPM machine includes a stator assembly and a stator core. The stator core also includes multiple stator teeth. The stator assembly is further configured with stator windings to generate a stator magnetic field when excited with alternating currents and extends along a longitudinal axis with an inner surface defining a cavity. The IPM machine also includes a rotor assembly and a rotor core. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further includes a shaft. The shaft further includes multiple protrusions alternately arranged relative to multiple bottom structures provided on the shaft. The rotor assembly also includes multiple stacks of laminations disposed on the protrusions and dovetailed circumferentially around the shaft. The rotor assembly further includes multiple pair of permanent magnets for generating a magnetic field, which magnetic field interacts with the stator magnetic field to produce a torque. The multiple pair of permanent magnets are disposed between the stacks. The rotor assembly also includes multiple middle wedges mounted between each pair of the multiple permanent magnets.

Alexander, James Pellegrino (Ballston Lake, NY); EL-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Lokhandwalla, Murtuza (Clifton Park, NY); Shah, Manoj Ramprasad (Latham, NY); VanDam, Jeremy Daniel (West Coxsackie, NY)

2011-08-23T23:59:59.000Z

313

Positional reference system for ultraprecision machining  

DOE Patents (OSTI)

A stable positional reference system for use in improving the cutting tool-to-part contour position in numerical controlled-multiaxis metal turning machines is provided. The reference system employs a plurality of interferometers referenced to orthogonally disposed metering bars which are substantially isolated from machine strain induced position errors for monitoring the part and tool positions relative to the metering bars. A microprocessor-based control system is employed in conjunction with the plurality of position interferometers and part contour description data inputs to calculate error components for each axis of movement and output them to corresponding axis drives with appropriate scaling and error compensation. Real-time position control, operating in combination with the reference system, makes possible the positioning of the cutting points of a tool along a part locus with a substantially greater degree of accuracy than has been attained previously in the art by referencing and then monitoring only the tool motion relative to a reference position located on the machine base.

Arnold, Jones B. (Knoxville, TN); Burleson, Robert R. (Clinton, TN); Pardue, Robert M. (Knoxville, TN)

1982-01-01T23:59:59.000Z

314

Positional reference system for ultraprecision machining  

DOE Patents (OSTI)

A stable positional reference system for use in improving the cutting tool-to-part contour position in numerical controlled-multiaxis metal turning machines is provided. The reference system employs a plurality of interferometers referenced to orthogonally disposed metering bars which are substantially isolated from machine strain induced position errors for monitoring the part and tool positions relative to the metering bars. A microprocessor-based control system is employed in conjunction with the plurality of positions interferometers and part contour description data input to calculate error components for each axis of movement and output them to corresponding axis driven with appropriate scaling and error compensation. Real-time position control, operating in combination with the reference system, makes possible the positioning of the cutting points of a tool along a part locus with a substantially greater degree of accuracy than has been attained previously in the art by referencing and then monitoring only the tool motion relative to a reference position located on the machine base.

Arnold, J.B.; Burleson, R.R.; Pardue, R.M.

1980-09-12T23:59:59.000Z

315

Thin superconducting disk with B-dependent Jc : Flux and current distributions D. V. Shantsev,* Y. M. Galperin,* and T. H. Johansen  

E-Print Network (OSTI)

Thin superconducting disk with B-dependent Jc : Flux and current distributions D. V. Shantsev,* Y magnetic field dependence of the critical sheet current, Jc(B), is analyzed. With an applied field Ba perpendicular to the disk, a set of coupled integral equations for the flux and current distributions is derived

Johansen, Tom Henning

316

El Ma Electronic Machining srl | Open Energy Information  

Open Energy Info (EERE)

Ma Electronic Machining srl Ma Electronic Machining srl Jump to: navigation, search Name El.Ma. Electronic Machining srl Place Riva del Garda (TN), Italy Zip 38066 Sector Hydro, Hydrogen, Solar, Wind energy Product String representation "Italy-based, in ... solar sectors." is too long. References El.Ma. Electronic Machining srl[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. El.Ma. Electronic Machining srl is a company located in Riva del Garda (TN), Italy . References ↑ "El.Ma. Electronic Machining srl" Retrieved from "http://en.openei.org/w/index.php?title=El_Ma_Electronic_Machining_srl&oldid=344591" Categories: Clean Energy Organizations Companies Organizations

317

Photo of the Week: The Z Machine | Department of Energy  

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

The Z Machine The Z Machine Photo of the Week: The Z Machine September 21, 2012 - 11:08am Addthis The Z machine, the largest X-ray generator in the world, is located in Albuquerque, New Mexico. As part of the Pulsed Power Program, which started at Sandia National Laboratories in the 1960s, the Z machine concentrates electrical energy and turns it into short pulses of enormous power, which can then be used to generate X-rays and gamma rays. Click on the image for a full size version. | Photo credit: Randy Montoya/Sandia National Laboratories. The Z machine, the largest X-ray generator in the world, is located in Albuquerque, New Mexico. As part of the Pulsed Power Program, which started at Sandia National Laboratories in the 1960s, the Z machine concentrates electrical energy and turns it into short pulses of enormous power, which

318

Cosmic Solenoids: Minimal Cross-Section and Generalized Flux Quantization  

E-Print Network (OSTI)

A self-consistent general relativistic configuration describing a finite cross-section magnetic flux tube is constructed. The cosmic solenoid is modeled by an elastic superconductive surface which separates the Melvin core from the surrounding flat conic structure. We show that a given amount $\\Phi$ of magnetic flux cannot be confined within a cosmic solenoid of circumferential radius smaller than $\\frac{\\sqrt{3G}}{2\\pi c^2}\\Phi$ without creating a conic singularity. Gauss-Codazzi matching conditions are derived by means of a self-consistent action. The source term, representing the surface currents, is sandwiched between internal and external gravitational surface terms. Surface superconductivity is realized by means of a Higgs scalar minimally coupled to projective electromagnetism. Trading the 'magnetic' London phase for a dual 'electric' surface vector potential, the generalized quantization condition reads: $e/{hc} \\Phi + 1/e Q=n$ with $Q$ denoting some dual 'electric' charge, thereby allowing for a non-trivial Aharonov-Bohm effect. Our conclusions persist for dilaton gravity provided the dilaton coupling is sub-critical.

Aharon Davidson; David Karasik

1999-01-02T23:59:59.000Z

319

Parameter optimization of modern machining processes using teaching-learning-based optimization algorithm  

Science Conference Proceedings (OSTI)

Modern machining processes are now-a-days widely used by manufacturing industries in order to produce high quality precise and very complex products. These modern machining processes involve large number of input parameters which may affect the cost ... Keywords: Abrasive jet machining, Modern machining processes, Parameter optimization, TLBO algorithm, Ultrasonic machining, Wire electrical discharge machining

R. Venkata Rao; V. D. Kalyankar

2013-01-01T23:59:59.000Z

320

Laboratory Directed Research and Development Final Report Intelligent Tools for On-Machine Acceptance of Precision Machined Components  

E-Print Network (OSTI)

On-Machine Acceptance (OMA) is an agile manufacturing concept being developed for machine tools at SNL. The concept behind OMA is the integration of product design, fabrication, and qualification processes by using the machining center as a fabrication and inspection tool. This report documents the final results of a Laboratory Directed Research and Development effort to qualify OMA. Intelligent Tools for On-Machine Acceptance of Precision Machined Components 2 Acknowledgments Thanks to Don Sheaffer, Department 8120, Mark Powell, Department 9611, and Marcey Abate, Department 12323, for their contributions to this final report. Thanks to Tony Bryce, and Dennis Clingan, Department 1484, Phil Skogmo, Department 2645, and Charles Steinhaus, Department 8240, for their assistance in writing this report. Intelligent Tools for On-Machine Acceptance of Precision Machined Components 3 Contents 1.0 Introduction .................................................................................

Naomi Christensen Precision; Naomi G. Christensen; Lane D. Harwell; Andrew Hazelton

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Translation-coupling systems  

SciTech Connect

Disclosed are systems and methods for coupling translation of a target gene to a detectable response gene. A version of the invention includes a translation-coupling cassette. The translation-coupling cassette includes a target gene, a response gene, a response-gene translation control element, and a secondary structure-forming sequence that reversibly forms a secondary structure masking the response-gene translation control element. Masking of the response-gene translation control element inhibits translation of the response gene. Full translation of the target gene results in unfolding of the secondary structure and consequent translation of the response gene. Translation of the target gene is determined by detecting presence of the response-gene protein product. The invention further includes RNA transcripts of the translation-coupling cassettes, vectors comprising the translation-coupling cassettes, hosts comprising the translation-coupling cassettes, methods of using the translation-coupling cassettes, and gene products produced with the translation-coupling cassettes.

Pfleger, Brian; Mendez-Perez, Daniel

2013-11-05T23:59:59.000Z

322

Variability of the Thermohaline Circulation in an Ocean General Circulation Model Coupled to an Atmospheric Energy Balance Model  

Science Conference Proceedings (OSTI)

The variability of the ocean’s thermohaline circulation in an oceanic general circulation model (OGCM) coupled to a two-dimensional atmospheric energy balance model (EBM) is examined. The EBM calculates air temperatures by balancing heat fluxes, ...

David W. Pierce; K-Y. Kim; Tim P. Barnett

1996-05-01T23:59:59.000Z

323

Atmospheric neutrino flux at INO site  

Science Conference Proceedings (OSTI)

To illustrate the calculation of the atmospheric neutrino flux, we briefly explain our calculation scheme and important components, such as primary cosmic ray spectra, interaction model, and geomagnetic model. Then, we calculate the atmospheric neutrino flux at INO site in our calculation scheme. We compare the calculated atmospheric neutrino fluxes predicted at INO with those at other major neutrino detector sites, especially that at SK site.

Honda, Morihiro [Institute for Cosmic Ray Research, University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8582 (Japan)

2011-11-23T23:59:59.000Z

324

Machine augmented composite materials for damping purposes  

E-Print Network (OSTI)

In this study the energy dissipation performance of machine augmented composite (MAC) materials is investigated. MAC materials are formed by inserting simple machines into a matrix material. In this work the machines take the form of fluid filled tubes, and the tube cross-sectional geometry induces fluid flow when it is deformed in its plane. This flow dissipates mechanical energy, and thus provides the composite material with attractive damping properties. The objective of this study is to gain insight into the geometry, the material property combinations, and the boundary conditions that are effective in producing high damping MAC materials. Particular attention is given to tube geometry and to dimensionless parameters that govern the energy dissipation efficiency of a MAC lamina. An important dimensionless parameter is the ratio of solid elastic moduli to the product of the driving frequency and the fluid dynamic viscosity. This is a measure of the ratio of elastic forces in the solid material to the viscous forces in the fluid material that makes up a MAC lamina. Governing equations and simulation methods are discussed. Simplified equations are derived to predict the pressure generated when a tube/matrix cell is squeezed with zero pressure end conditions. Transient, three dimensional finite element models are also used to predict the performance of the damping MAC materials with zero pressure at the ends of the tubes. For the geometry and material properties considered, the highest energy dissipation efficiency predicted by these models is approximately 0.8 out of a maximum of 1.0.

McCutcheon, David Matthew

2004-12-01T23:59:59.000Z

325

Predicting Low Flux High - Programmaster.org  

Science Conference Proceedings (OSTI)

High flux can access high fluence, but such TTS data is under-predicted by current ... on Defect Migration and Void Formation using the Phase Field Method.

326

Flux: for brass quintet with analysis.  

E-Print Network (OSTI)

??This paper will examine the piece Flux: for Brass Quintet, completed in the spring of 2010 by Robert DeVet. It will first examine the system… (more)

Devet, Robert

2010-01-01T23:59:59.000Z

327

On solar neutrino fluxes in radiochemical experiments  

E-Print Network (OSTI)

We analyze fluctuations of the solar neutrino flux using data from the Homestake, GALLEX, GNO, SAGE and Super Kamiokande experiments. Spectral analysis and direct quantitative estimations show that the most stable variation of the solar neutrino flux is a quasi-five-year periodicity. The revised values of the mean solar neutrino flux are presented in Table 4. They were used to estimate the observed pp-flux of the solar electron neutrinos near the Earth. We consider two alternative explanations for the origin of a variable component of the solar neutrino deficit.

R. N. Ikhsanov; Yu. N. Gnedin; E. V. Miletsky

2005-12-08T23:59:59.000Z

328

Vector Representation of Trade Cumulus Thermodynamic Fluxes  

Science Conference Proceedings (OSTI)

A vector representation of the BOMEX thermodynamic budget data is presented which shows graphically the relationship of the fluxes and the mean layer structure.

Alan K. Betts

1985-12-01T23:59:59.000Z

329

HFIR | High Flux Isotope Reactor | ORNL  

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

HFIR Working with HFIR Neutron imaging offers new tools for exploring artifacts and ancient technology Home | User Facilities | HFIR HFIR | High Flux Isotope Reactor SHARE The High...

330

Ccg supertags in factored statistical machine translation  

E-Print Network (OSTI)

Combinatorial Categorial Grammar (CCG) supertags present phrase-based machine translation with an opportunity to access rich syntactic information at a word level. The challenge is incorporating this information into the translation process. Factored translation models allow the inclusion of supertags as a factor in the source or target language. We show that this results in an improvement in the quality of translation and that the value of syntactic supertags in flat structured phrase-based models is largely due to better local reorderings. 1

Alexandra Birch; Miles Osborne

2007-01-01T23:59:59.000Z

331

International Journal of Machine Tools & Manufacture 47 (2007) 22732281 Near dry electrical discharge machining  

E-Print Network (OSTI)

discharge machining C.C. Kao, Jia Tao, Albert J. ShihÃ? Mechanical Engineering, University of Michigan, Ann. The dielectric strength, defined as the maximum electric field strength that the dielectric fluid can withstand and kerosene-based oil are two commonly used dielectric fluids in conventional wet EDM. Dry EDM uses gas

Shih, Albert J.

332

Comparison of the high temperature heat flux sensor to traditional heat flux gages under high heat flux conditions.  

SciTech Connect

Four types of heat flux gages (Gardon, Schmidt-Boelter, Directional Flame Temperature, and High Temperature Heat Flux Sensor) were assessed and compared under flux conditions ranging between 100-1000 kW/m2, such as those seen in hydrocarbon fire or propellant fire conditions. Short duration step and pulse boundary conditions were imposed using a six-panel cylindrical array of high-temperature tungsten lamps. Overall, agreement between all gages was acceptable for the pulse tests and also for the step tests. However, repeated tests with the HTHFS with relatively long durations at temperatures approaching 1000%C2%B0C showed a substantial decrease (10-25%) in heat flux subsequent to the initial test, likely due to the mounting technique. New HTHFS gages have been ordered to allow additional tests to determine the cause of the flux reduction.

Blanchat, Thomas K.; Hanks, Charles R.

2013-04-01T23:59:59.000Z

333

Agile Machining and Inspection Non-Nuclear Report (NNR) Project  

SciTech Connect

This report is a high level summary of the eight major projects funded by the Agile Machining and Inspection Non-Nuclear Readiness (NNR) project (FY06.0422.3.04.R1). The largest project of the group is the Rapid Response project in which the six major sub categories are summarized. This project focused on the operations of the machining departments that will comprise Special Applications Machining (SAM) in the Kansas City Responsive Infrastructure Manufacturing & Sourcing (KCRIMS) project. This project was aimed at upgrading older machine tools, developing new inspection tools, eliminating Classified Removable Electronic Media (CREM) in the handling of classified Numerical Control (NC) programs by installing the CRONOS network, and developing methods to automatically load Coordinated-Measuring Machine (CMM) inspection data into bomb books and product score cards. Finally, the project personnel leaned perations of some of the machine tool cells, and now have the model to continue this activity.

Lazarus, Lloyd

2009-02-19T23:59:59.000Z

334

Energy Cost Calculator for Commercial Ice Machines | Department of Energy  

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

Ice Machines Ice Machines Energy Cost Calculator for Commercial Ice Machines October 8, 2013 - 2:25pm Addthis Vary capacity size, energy cost, hours of operation, and /or efficiency level. INPUT SECTION Input the following data (if any parameter is missing, calculator will set to default value). Defaults Type of Ice Cube Machine Ice Making Head Self-Contained Remote Condensing Unit Ice Making Head Type of Condenser Air Cooled Water Cooled Air Cooled Ice Harvest Rate (lbs. ice per 24 hrs.) lbs. per 24 hrs. 500 lbs. per 24 hrs. Energy Consumption (per 100 lbs. of ice) kWh 5.5 kWh Quantity of ice machines to be purchased 1 Energy Cost $/kWh 0.06 $/kWh Annual Hours of Operation hrs. 3000 hrs. Calculate Reset OUTPUT SECTION Performance per Ice Cube Machine Your

335

A Comparison of Latent Heat Fluxes over Global Oceans for Four Flux Products  

Science Conference Proceedings (OSTI)

The ocean surface latent heat flux (LHF) plays an essential role in global energy and water cycle variability. In this study, monthly LHF over global oceans during 1992–93 are compared among Goddard Satellite-Based Surface Turbulent Fluxes, ...

Shu-Hsien Chou; Eric Nelkin; Joe Ardizzone; Robert M. Atlas

2004-10-01T23:59:59.000Z

336

Edge diagnostics for tandem mirror machines  

SciTech Connect

The edge plasma in a tandem mirror machine shields the plasma core from cold neutral gas and impurities. A variety of diagnostics are used to measure the fueling, shielding, and confinement of the edge plasma in both the end plug and central cell regions. Fast ion gauges and residual gas analyzers measure the gas pressure and composition outside of the plasma. An array of Langmuir probes is used to measure the electron density and temperature. Extreme ultraviolet (euv) and visible spectroscopy are used to measure both the impurity and deuterium densities and to estimate the shielding factor for the core plasma. The linear geometry of a tandem mirror also allows direct measurements of the edge plasma by sampling the ions and electrons lost but the ends of the machine. Representative data obtained by these diagnostics during operation of the Tandem Mirror Experiment (TMX) and Tandem Mirror Experiment-Upgrade (TMX-U) experiments are presented. Diagnostics that are currently being developed to diagnose the edge plasma are also discussed.

Allen, S.L.

1984-09-14T23:59:59.000Z

337

Evaluation of machining dispersions for turning process  

E-Print Network (OSTI)

In this article we propose to extend the model of simulation of dispersions in turning based on the geometrical specifications. Our study is articulated around two trends of development: the first trend relates to the geometrical model. The geometrical model suggested must allow a follow-up of the geometry of the part during the simulation of machining. It is thus a question of carrying out a systematic treatment of the whole dimensioning and tolerancing process while being based on the principles of the \\DeltaL method. We also planned to integrate this type of specification in the model of simulation of machining suggested. It is more generally a question of extending the traditional model for better taking into account the multi axis specification of coaxiality and perpendicularity on the turned workpieces. The second trend of our study relates to the widening of the field of application of the model. We propose to extend the field of application of the model by taking into account the modifications of several parameters of the manufacturing process plans, likely to involve variations of dispersions.

Arnaud Lefebvre; Valery Wolff

2008-03-03T23:59:59.000Z

338

Automatic tool path generation for finish machining  

SciTech Connect

A system for automatic tool path generation was developed at Sandia National Laboratories for finish machining operations. The system consists of a commercially available 5-axis milling machine controlled by Sandia developed software. This system was used to remove overspray on cast turbine blades. A laser-based, structured-light sensor, mounted on a tool holder, is used to collect 3D data points around the surface of the turbine blade. Using the digitized model of the blade, a tool path is generated which will drive a 0.375 inch diameter CBN grinding pin around the tip of the blade. A fuzzified digital filter was developed to properly eliminate false sensor readings caused by burrs, holes and overspray. The digital filter was found to successfully generate the correct tool path for a blade with intentionally scanned holes and defects. The fuzzified filter improved the computation efficiency by a factor of 25. For application to general parts, an adaptive scanning algorithm was developed and presented with simulation results. A right pyramid and an ellipsoid were scanned successfully with the adaptive algorithm.

Kwok, Kwan S.; Loucks, C.S.; Driessen, B.J.

1997-03-01T23:59:59.000Z

339

Energy and potential enstrophy flux constraints in quasi-geostrophic models  

E-Print Network (OSTI)

We investigate an inequality constraining the energy and potential enstrophy flux spectra in two-layer and multi-layer quasi-geostrophic models. Its physical significance is that it can diagnose whether any given multi-layer model that allows co-existing downscale cascades of energy and potential enstrophy can allow the downscale energy flux to become large enough to yield a mixed energy spectrum where the dominant $k^{-3}$ scaling is overtaken by a subdominant $k^{-5/3}$ contribution beyond a transition wavenumber $k_t$ situated in the inertial range. The validity of the flux inequality implies that this scaling transition cannot occur within the inertial range, whereas a violation of the flux inequality beyond some wavenumber $k_t$ implies the existence of a scaling transition near that wavenumber. This flux inequality holds unconditionally in two-dimensional Navier-Stokes turbulence, however, it is far from obvious that it continues to hold in multi-layer quasi-geostrophic models, because the dissipation rate spectra for energy and potential enstrophy no longer relate in a trivial way, as in two-dimensional Navier-Stokes. We derive the general form of the energy and potential enstrophy dissipation rate spectra for a generalized symmetrically coupled multi-layer model. From this result, we prove that in a symmetrically coupled multi-layer quasi-geostrophic model, where the dissipation terms for each layer consist of the same Fourier-diagonal linear operator applied on the streamfunction field of only the same layer, the flux inequality continues to hold. It follows that a necessary condition to violate the flux inequality is the use of asymmetric dissipation where different operators are used on different layers. etc.

Eleftherios Gkioulekas

2013-01-21T23:59:59.000Z

340

What is a flux tube? On the magnetic field topology of buoyant flux structures  

E-Print Network (OSTI)

What is a flux tube? On the magnetic field topology of buoyant flux structures Fausto Cattaneo study the topology of field lines threading buoyant magnetic flux struc- tures. The magnetic structures ­ Sun: interior ­ Sun: magnetic fields ­ Stars: spots 1 Current address: Department of Mathematics

Note: This page contains sample records for the topic "flux coupling machines" 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

Skew Fluxes in Polarized Wave Fields  

Science Conference Proceedings (OSTI)

The scalar flux due to small amplitude waves that exhibit a preferred sense of rotation or polarization is shown to consist of a component. FS, that is skewed, being everywhere orthogonal to the mean scalar gradient, Q. The skew flux is ...

John F. Middleton; John W. Loder

1989-01-01T23:59:59.000Z

342

METHOD AND FLUX COMPOSITION FOR TREATING URANIUM  

DOE Patents (OSTI)

ABS>A flux composition is described fer use with molten uranium or uranium alloys. The flux consists of about 46 weight per cent calcium fiuoride, 46 weight per cent magnesium fluoride and about 8 weight per cent of uranium tetrafiuoride.

Foote, F.

1958-08-23T23:59:59.000Z

343

Multi-winding Homopolar Electric Machine Offers Variable Voltage ...  

Wind Energy Industrial Technologies Multi-winding Homopolar Electric Machine Offers Variable Voltage at Low Rotational Speed Oak Ridge National Laboratory. Contact ...

344

Combined Electric Machine and Current Source Inverter Drive System ...  

Wind power generators ; Industrial power generators; More Information John S. Hsu. Combined Electric Machine and Current Source Invertor Drive System, U.S ...

345

Electrical machines and assemblies including a yokeless stator ...  

Wind Energy; Partners (27) Visual Patent Search; Success Stories; News; Events; Electrical machines and assemblies including a yokeless stator with modular lamination ...

346

DOE - Office of Legacy Management -- Cincinnati Milling and Machining...  

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

& Machining Co. (OH.25 ) Eliminated from consideration under FUSRAP - Referred to NRC Designated Name: Not Designated Alternate Name: None Location: Cincinnati , Ohio...

347

Livermore installs big data machine | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

installs big data machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

348

Parallel machine scheduling with nested job assignment restrictions  

Science Conference Proceedings (OSTI)

We derive a polynomial time approximation scheme for a special case of makespan minimization on unrelated machines. Keywords: Approximation algorithms, Restricted assignment, Scheduling

Gabriella Muratore; Ulrich M. Schwarz; Gerhard J. Woeginger

2010-01-01T23:59:59.000Z

349

KCP relocates 18-ton machine | National Nuclear Security Administratio...  

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

relocates 18-ton machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

350

A Column Generation Approach for Support Vector Machines  

E-Print Network (OSTI)

Mar 23, 2006 ... For instance, taking the Wisconsin Breast Cancer Database from the UCI Machine ..... European Journal of Operational Research. In press.

351

Vending Machine Energy Consumption and VendingMiser Evaluation  

E-Print Network (OSTI)

As an effort to decrease the amount of non-critical energy used on the Texas A&M campus, and to assist Dixie Narco in evaluating the efficiency of their vending machines, the Texas A&M Energy Systems Laboratory investigated the power consumption of soda vending machines on the Texas A&M campus. Several vending machines were evaluated to determine the power consumption for the individual components, and the whole machine. Recommendations were made from the results. The VendingMiser device was also tested to evaluate the potential energy savings of this device.

Ritter, J.; Hugghins, J.

2000-01-01T23:59:59.000Z

352

Sandia gives Japanese elected official a tour of Z machine |...  

National Nuclear Security Administration (NNSA)

gives Japanese elected official a tour of Z machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy...

353

Hybrid MPI/OpenMP parallel support vector machine training  

E-Print Network (OSTI)

Jan 12, 2009 ... A parallel implementation of Support Vector Machine training has been developed, using a combination of MPI and OpenMP. Using an interior ...

354

Exploiting separability in large-scale Support Vector Machine training  

E-Print Network (OSTI)

Aug 8, 2007 ... Abstract: Linear support vector machine training can be represented as a large quadratic program. We present an efficient and numerically ...

355

Interpolator for numerically controlled machine tools  

DOE Patents (OSTI)

A digital differential analyzer circuit is provided that depending on the embodiment chosen can carry out linear, parabolic, circular or cubic interpolation. In the embodiment for parabolic interpolations, the circuit provides pulse trains for the X and Y slide motors of a two-axis machine to effect tool motion along a parabolic path. The pulse trains are generated by the circuit in such a way that parabolic tool motion is obtained from information contained in only one block of binary input data. A part contour may be approximated by one or more parabolic arcs. Acceleration and initial velocity values from a data block are set in fixed bit size registers for each axis separately but simultaneously and the values are integrated to obtain the movement along the respective axis as a function of time. Integration is performed by continual addition at a specified rate of an integrand value stored in one register to the remainder temporarily stored in another identical size register. Overflows from the addition process are indicative of the integral. The overflow output pulses from the second integration may be applied to motors which position the respective machine slides according to a parabolic motion in time to produce a parabolic machine tool motion in space. An additional register for each axis is provided in the circuit to allow "floating" of the radix points of the integrand registers and the velocity increment to improve position accuracy and to reduce errors encountered when the acceleration integrand magnitudes are small when compared to the velocity integrands. A divider circuit is provided in the output of the circuit to smooth the output pulse spacing and prevent motor stall, because the overflow pulses produced in the binary addition process are spaced unevenly in time. The divider has the effect of passing only every nth motor drive pulse, with n being specifiable. The circuit inputs (integrands, rates, etc.) are scaled to give exactly n times the desired number of pulses out, in order to compensate for the divider.

Bowers, Gary L. (Clinton, TN); Davenport, Clyde M. (Oak Ridge, TN); Stephens, Albert E. (Knoxville, TN)

1976-01-01T23:59:59.000Z

356

Optimisation of machining processes design for Stellite 6, a wear resistant and difficult-to-machine material.  

E-Print Network (OSTI)

??"The research work in this thesis involves a series of physical experiments and theoretical investigations for machining of Stellite 6 using PCBN (Polycrystalline Cubic Boron… (more)

Hasan, Md Shahanur.

2011-01-01T23:59:59.000Z

357

Technology: Machine and its interpretation in architecture  

E-Print Network (OSTI)

The objective of this study is to develop a comprehensive theory for the relationship between architecture and technology and to examine the interpretation of technology when it is applied to architecture. In architecture, 'art and craft' and 'doing and saying (presentation)' are closely interwoven. It is sensitive to the external environment in nature, and its boundary has been actively changed. The nineteenth century brought the sudden alteration of culture with the collaboration between science and its applied means or knowledge - "technology". Subsequently, in the twentieth century, the new culture has transformed our normal life style and we can perceive the development of civilization sensuously. The machine as a product of industrial civilization and the symbol of technology has generated new meanings and tradition in tune with this historical trend. Therefore, this study will center on the concept 'technology', which is one of the conspicuous factors in the formation of modern architecture, and it will investigate the relationship between technology and architecture.

Kim, Ju Hong

2002-01-01T23:59:59.000Z

358

Applying Alpha-Channeling to Mirror Machines  

SciTech Connect

The ?-channeling effect entails the use of radio-frequency waves to expel and cool high-energetic ?- particles born in a fusion reactor; the device reactivity can then be increased even further by redirecting the extracted energy to fuel ions. Originally proposed for tokamaks, this technique has also been shown to benefi t open-ended fusion devices. Here, the fundamental theory and practical aspects of ?- channeling in mirror machines are reviewed, including the influence of magnetic field inhomogeneity and the effect of a finite wave region on the ?-channeling mechanism. For practical implementation of the ? -channeling effect in mirror geometry, suitable contained weakly-damped modes are identifi ed. In addition, the parameter space of candidate waves for implementing the ? -channeling effect can be signi cantly extended through the introduction of a suitable minority ion species that has the catalytic effect of moderating the transfer of power from the ?-channeling wave to the fuel ions.

A.I. Zhmoginov and N.J. Fisch

2012-03-16T23:59:59.000Z

359

Design studies of mirror machine reactors  

SciTech Connect

An overview is presented of a mirror fusion reactor design study. The general methodology used in the study is discussed, the reactor is described, and some design alternatives to the present approach are enumerated. The system chosen for this design study is a mirror machine with direct conversion using D- T fuel. The nominal power output is 200 MW. The coil geometry is the Yin Yang, minimum B with a vacuum mirror ratio of 3. The coil is of particular utility because of its simple conductor shapes and because the two separate conductors, by proper B-field biasing, allow the charged particles to escape preferentially through one mirror only and through a relatively small window'' of that mirror. This is necessary for direct converter economy. (auth)

Werner, R.W.; Carlson, G.A.; Hovingh, J.; Lee, J.D.; Peterson, M.A.

1973-12-01T23:59:59.000Z

360

ON THE ERUPTION OF CORONAL FLUX ROPES  

SciTech Connect

We present three-dimensional MHD simulations of the evolution of the magnetic field in the corona where the emergence of a twisted magnetic flux tube is driven at the lower boundary into a pre-existing coronal potential arcade field. Through a sequence of simulations in which we vary the amount of twisted flux transported into the corona before the emergence is stopped, we investigate the conditions that lead to a dynamic eruption of the resulting coronal flux rope. It is found that the critical condition for the onset of eruption is for the center of the flux rope to reach a critical height at which the corresponding potential field declines with height at a sufficiently steep rate, consistent with the onset of the torus instability of the flux rope. In some cases, immediately after the emergence is stopped, the coronal flux rope first settles into a quasi-static rise with an underlying sigmoid-shaped current layer developing. Preferential heating of field lines going through this current layer may give rise to the observed quiescent X-ray sigmoid loops before eruption. Reconnections in the current layer during the initial quasi-static stage is found to add detached flux to the coronal flux rope, allowing it to rise quasi-statically to the critical height and dynamic eruption of the flux rope then ensues. By identifying field lines whose tops are in the most intense part of the current layer during the eruption, we deduce the evolution and morphology of the post-flare X-ray loops and the flare ribbons at their footpoints.

Fan, Y. [High Altitude Observatory, National Center for Atmospheric Research, 3080 Center Green Drive, Boulder, CO 80301 (United States)

2010-08-10T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Coaxial Coupling Scheme for TESLA/ILC-type Cavities  

Science Conference Proceedings (OSTI)

This paper reports about our efforts to develop a flangeable coaxial coupler for both HOM and fundamental coupling for 9-cell TESLA/ILC-type cavities. The cavities were designed in early 90‘s for pulsed operation with a low duty factor, less than 1 %. The proposed design of the coupler has been done in a way, that the magnetic flux B at the flange connection is minimized and only a field of TESLA/ILC operation conditions.

J.K. Sekutowicz, P. Kneisel

2010-05-01T23:59:59.000Z

362

Energy Efficient Allocation of Virtual Machines in Cloud Data Centers  

Science Conference Proceedings (OSTI)

Rapid growth of the demand for computational power has led to the creation of large-scale data centers. They consume enormous amounts of electrical power resulting in high operational costs and carbon dioxide emissions. Moreover, modern Cloud computing ... Keywords: Energy efficiency, Cloud computing, Energy consumption, Green IT, Resource management, Virtualization, Allocation of virtual machines, Live migration of virtual machines

Anton Beloglazov; Rajkumar Buyya

2010-05-01T23:59:59.000Z

363

Brain-controlled finite state machine for wheelchair navigation  

Science Conference Proceedings (OSTI)

This proposal is about a brain-controlled electrically powered wheelchair. The system comprises a brain-computer interface based on steady-state visual evoked potentials and a processing unit relying on a finite state machine (FSM). Results of first ... Keywords: brain-computer interface (bci), finite state machine (fsm), human-computer interaction, stea dy-state visual evoked potentials (ssvep)

Amir Teymourian; Thorsten Lueth; Axel Graeser; Torsten Felzer; Rainer Nordmann

2008-10-01T23:59:59.000Z

364

Synthesizing hierarchical state machines from expressive scenario descriptions  

Science Conference Proceedings (OSTI)

There are many examples in the literature of algorithms for synthesizing state machines from scenario-based models. The motivation for these is to automate the transition from scenario-based requirements to early behavioral design models. To date, however, ... Keywords: State machine synthesis, interaction overview diagrams, scenario-based requirements, software modeling

Jon Whittle; Praveen K. Jayaraman

2010-01-01T23:59:59.000Z

365

Monthly streamflow forecasting based on improved support vector machine model  

Science Conference Proceedings (OSTI)

To improve the performance of the support vector machine (SVM) model in predicting monthly streamflow, an improved SVM model with adaptive insensitive factor is proposed in this paper. Meanwhile, considering the influence of noise and the disadvantages ... Keywords: Adaptive insensitive factor, Artificial neural network, Chaos and phase-space reconstruction theory, Streamflow forecast, Support vector machine, Wavelet

Jun Guo; Jianzhong Zhou; Hui Qin; Qiang Zou; Qingqing Li

2011-09-01T23:59:59.000Z

366

Terminal models for switching overvoltage studies in electrical machines  

Science Conference Proceedings (OSTI)

In this paper, terminal models for high voltage machine windings are developed. The models are useful for simulating transient overvoltages due to switching operations on industrial installations. The models are based on network synthesis of the winding ... Keywords: electrical parameters, machine winding, network synthesis, switching transients, terminal impedance

J. L. Guardado; V. Venegas; E. Melgoza

2006-03-01T23:59:59.000Z

367

Fatigue crack growth estimation by relevance vector machine  

Science Conference Proceedings (OSTI)

The investigation of damage propagation mechanisms on a selected safety-critical component or structure requires the quantification of its remaining useful life (RUL) to verify until when it can continue performing the required function. In this work, ... Keywords: Bayesian techniques, Fatigue crack growth, Prognostics, Relevance vector machine, Residual useful life, Support vector machine

Enrico Zio; Francesco Di Maio

2012-09-01T23:59:59.000Z

368

Advanced support vector machines for 802.11 indoor location  

Science Conference Proceedings (OSTI)

Due to the proliferation of ubiquitous computing services, locating a device in indoor scenarios has received special attention during recent years. A variety of algorithms are based on Wi-Fi measurements of the received signal strength and estimate ... Keywords: Autocorrelation kernel, Complex support vector machines, Fingerprinting, IEEE 802.11, Indoor location, Support vector machines

Carlos Figuera; José Luis Rojo-Álvarez; Mark Wilby; Inmaculada Mora-Jiménez; Antonio J. Caamaño

2012-09-01T23:59:59.000Z

369

Grading of construction aggregate through machine vision: Results and prospects  

Science Conference Proceedings (OSTI)

Traditionally, crushed aggregate to be used in construction is graded using sieves. We describe an innovative machine vision approach to such grading. Our operational scenario is one where a camera takes images from directly overhead of a layer of aggregate ... Keywords: Construction industry, Image database, Machine vision, Supervised and unsupervised classification, Wavelet transform

Fionn Murtagh; Xiaoyu Qiao; Paul Walsh; P. A. M. Basheer; Danny Crookes; Adrian Long

2005-12-01T23:59:59.000Z

370

Bounded sequence testing from deterministic finite state machines  

Science Conference Proceedings (OSTI)

The W- andWp-methods are the basis for conformance testing from a deterministic finite state machine (DFSM) when the conformance relation considered is equivalence. However, many DFSM applications use only input sequences of limited length. In such cases, ... Keywords: Finite state machines, Specification-based testing, Test selection, W-method, Wp-method

Florentin Ipate

2010-03-01T23:59:59.000Z

371

FLUX EMERGENCE IN A MAGNETIZED CONVECTION ZONE  

Science Conference Proceedings (OSTI)

We study the influence of a dynamo magnetic field on the buoyant rise and emergence of twisted magnetic flux ropes and their influence on the global external magnetic field. We ran three-dimensional MHD numerical simulations using the ASH code (anelastic spherical harmonics) and analyzed the dynamical evolution of such buoyant flux ropes from the bottom of the convection zone until the post-emergence phases. The global nature of this model can only very crudely and inaccurately represent the local dynamics of the buoyant rise of the implanted magnetic structure, but nonetheless allows us to study the influence of global effects, such as self-consistently generated differential rotation and meridional circulation, and of Coriolis forces. Although motivated by the solar context, this model cannot be thought of as a realistic model of the rise of magnetic structures and their emergence in the Sun, where the local dynamics are completely different. The properties of initial phases of the buoyant rise are determined essentially by the flux-rope's properties and the convective flows and consequently are in good agreement with previous studies. However, the effects of the interaction of the background dynamo field become increasingly strong as the flux ropes evolve. During the buoyant rise across the convection zone, the flux-rope's magnetic field strength scales as B{proportional_to}{rho}{sup {alpha}}, with {alpha} {approx}current density is observed to precede flux emergence at all longitudes. The geometry, latitude, and relative orientation of the flux ropes with respect to the background magnetic field influences the resulting rise speeds, zonal flow amplitudes (which develop within the flux ropes), and the corresponding surface signatures. This influences the morphology, duration and amplitude of the surface shearing, and the Poynting flux associated with magnetic flux-rope emergence. The emerged magnetic flux influences the system's global polarity, leading in some cases to a polarity reversal while inhibiting the background dynamo from doing so in others. The emerged magnetic flux is slowly advected poleward while being diffused and assimilated by the background dynamo field.

Pinto, R. F.; Brun, A. S., E-mail: rui.pinto@cea.fr [Laboratoire AIM Paris-Saclay, CEA/Irfu Universite Paris-Diderot CNRS/INSU, F-91191 Gif-sur-Yvette (France)

2013-07-20T23:59:59.000Z

372

Eddy Correlation Flux Measurement System (ECOR) Handbook  

SciTech Connect

The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration.

Cook, DR

2011-01-31T23:59:59.000Z

373

16,000-rpm Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation  

SciTech Connect

The reluctance interior permanent magnet (RIPM) motor is currently used by many leading auto manufacturers for hybrid vehicles. The power density for this type of motor is high compared with that of induction motors and switched reluctance motors. The primary drawback of the RIPM motor is the permanent magnet (PM) because during high-speed operation, the fixed PM produces a huge back electromotive force (emf) that must be reduced before the current will pass through the stator windings. This reduction in back-emf is accomplished with a significant direct-axis (d-axis) demagnetization current, which opposes the PM's flux to reduce the flux seen by the stator wires. This may lower the power factor and efficiency of the motor and raise the requirement on the alternate current (ac) power supply; consequently, bigger inverter switching components, thicker motor winding conductors, and heavier cables are required. The direct current (dc) link capacitor is also affected when it must accommodate heavier harmonic currents. It is commonly agreed that, for synchronous machines, the power factor can be optimized by varying the field excitation to minimize the current. The field produced by the PM is fixed and cannot be adjusted. What can be adjusted is reactive current to the d-axis of the stator winding, which consumes reactive power but does not always help to improve the power factor. The objective of this project is to avoid the primary drawbacks of the RIPM motor by introducing brushless field excitation (BFE). This offers both high torque per ampere (A) per core length at low speed by using flux, which is enhanced by increasing current to a fixed excitation coil, and flux, which is weakened at high speed by reducing current to the excitation coil. If field weakening is used, the dc/dc boost converter used in a conventional RIPM motor may be eliminated to reduce system costs. However, BFE supports a drive system with a dc/dc boost converter, because it can further extend the constant power speed range of the drive system and adjust the field for power factor and efficiency gains. Lower core losses at low torque regions, especially at high speeds, are attained by reducing the field excitation. Safety and reliability are increased by weakening the field when a winding short-circuit fault occurs, preventing damage to the motor. For a high-speed motor operating at 16,000-revolutions per minute (rpm), mechanical stress is a challenge. Bridges that link the rotor punching segments together must be thickened for mechanical integrity; consequently, increased rotor flux leakage significantly lowers motor performance. This barrier can be overcome by BFE to ensure sufficient rotor flux when needed.

Hsu, J.S.; Burress, T.A.; Lee, S.T.; Wiles, R.H.; Coomer, C.L.; McKeever, J.W.; Adams, D.J.

2007-10-31T23:59:59.000Z

374

Confining Boundary conditions from dynamical Coupling Constants  

E-Print Network (OSTI)

It is shown that it is possible to consistently and gauge invariantly formulate models where the coupling constant is a non trivial function of a scalar field . In the $U(1)$ case the coupling to the gauge field contains a term of the form $g(\\phi)j_\\mu (A^{\\mu} +\\partial^{\\mu}B)$ where $B$ is an auxiliary field and $j_\\mu$ is the Dirac current. The scalar field $\\phi$ determines the local value of the coupling of the gauge field to the Dirac particle. The consistency of the equations determine the condition $\\partial^{\\mu}\\phi j_\\mu = 0$ which implies that the Dirac current cannot have a component in the direction of the gradient of the scalar field. As a consequence, if $\\phi$ has a soliton behaviour, like defining a bubble that connects two vacuua, we obtain that the Dirac current cannot have a flux through the wall of the bubble, defining a confinement mechanism where the fermions are kept inside those bags. Consistent models with time dependent fine structure constant can be also constructed

E. I. Guendelman; R. Steiner

2013-11-11T23:59:59.000Z

375

Milling Machine Replacement Project (4587), 5/11/2012  

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

Milling Machine Replacement Projects (4587) Milling Machine Replacement Projects (4587) Program or Field Office: Y-12 Site Office Location(s) (City/County/State): Oak Ridge, Anderson County, Tennessee Proposed Action Description: Submit by E-mail The proposed action is to replace two large milling machines with two new medium sized CNC milling machines. The new machines will be connected to the digital network communication (DNC) system. Categorical Exclusion(s) Applied: 81.31 -Installation or relocation of machinery and equipment For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, including the full text of each categorical exclusion, see Subpart D of 10 CFR Part 1021. Regulatory Requirements in 10 CFR 1021.410(b): (See full text in regulation)

376

DOE - Office of Legacy Management -- Transcontinental Machine and Tool Co -  

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

Transcontinental Machine and Tool Transcontinental Machine and Tool Co - US 06 FUSRAP Considered Sites Site: TRANSCONTINENTAL MACHINE AND TOOL CO. (US.06 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Unknown US.06-1 Evaluation Year: 1990 US.06-1 Site Operations: Metal Fabrication operations - Machined Uranium slugs in support of Savannah River program for evaluation of Uranium fabrication methods. US.06-1 Site Disposition: Eliminated - Based on similar AEC/MED machine shops' surveys with low potential for contamination - did not exceed DOE guidelines US.06-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium US.06-1 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP

377

Traction sheave elevator, hoisting unit and machine space  

DOE Patents (OSTI)

Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.

Hakala, Harri (Hyvinkaa, FI); Mustalahti, Jorma (Hyvinkaa, FI); Aulanko, Esko (Kerava, FI)

2000-01-01T23:59:59.000Z

378

Neutronics Modeling of the High Flux Isotope Reactor using COMSOL  

Science Conference Proceedings (OSTI)

The High Flux Isotope Reactor located at the Oak Ridge National Laboratory is a versatile 85 MWth research reactor with cold and thermal neutron scattering, materials irradiation, isotope production, and neutron activation analysis capabilities. HFIR staff members are currently in the process of updating the thermal hydraulic and reactor transient modeling methodologies. COMSOL Multiphysics has been adopted for the thermal hydraulic analyses and has proven to be a powerful finite-element-based simulation tool for solving multiple physics-based systems of partial and ordinary differential equations. Modeling reactor transients is a challenging task because of the coupling of neutronics, heat transfer, and hydrodynamics. This paper presents a preliminary COMSOL-based neutronics study performed by creating a two-dimensional, two-group, diffusion neutronics model of HFIR to study the spatially-dependent, beginning-of-cycle fast and thermal neutron fluxes. The 238-group ENDF/B-VII neutron cross section library and NEWT, a two-dimensional, discrete-ordinates neutron transport code within the SCALE 6 code package, were used to calculate the two-group neutron cross sections required to solve the diffusion equations. The two-group diffusion equations were implemented in the COMSOL coefficient form PDE application mode and were solved via eigenvalue analysis using a direct (PARDISO) linear system solver. A COMSOL-provided adaptive mesh refinement algorithm was used to increase the number of elements in areas of largest numerical error to increase the accuracy of the solution. The flux distributions calculated by means of COMSOL/SCALE compare well with those calculated with benchmarked three-dimensional MCNP and KENO models, a necessary first step along the path to implementing two- and three-dimensional models of HFIR in COMSOL for the purpose of studying the spatial dependence of transient-induced behavior in the reactor core.

Chandler, David [ORNL; Primm, Trent [ORNL; Freels, James D [ORNL; Maldonado, G Ivan [ORNL

2011-01-01T23:59:59.000Z

379

George Hadjipanayis, Chairman, Department of Physics and Astronomy...  

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

John Hsu, Oak Ridge National Laboratory, Flux Coupling Machines and Switched Reluctance Motors to Replace Permanent Magnets in Electric Vehicles CX-000852: Categorical Exclusion...

380

Tetrakis-amido high flux membranes  

DOE Patents (OSTI)

Composite RO membranes of a microporous polymeric support and a polyamide reaction product of a tetrakis-aminomethyl compound and a polyacylhalide are disclosed, said membranes exhibiting high flux and good chlorine resistance.

McCray, Scott B. (Bend, OR)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Cloud Identification for ERBE Radiative Flux Retrieval  

Science Conference Proceedings (OSTI)

Derivation of top of atmosphere radiative fluxes requires the use of measured satellite radiances and assumptions about the anisotropy of the Earth's radiation field. The primary modification of the Earth's anisotropy is caused by variations in ...

Bruce A. Wielicki; Richard N. Green

1989-11-01T23:59:59.000Z

382

A low cost high flux solar simulator  

E-Print Network (OSTI)

A low cost, high flux, large area solar simulator has been designed, built and characterized for the purpose of studying optical melting and light absorption behavior of molten salts. Seven 1500 W metal halide outdoor ...

Codd, Daniel S.

383

Tetrakis-amido high flux membranes  

DOE Patents (OSTI)

Composite RO membranes of a microporous polymeric support and a polyamide reaction product of a tetrakis-aminomethyl compound and a polyacylhalide are disclosed, said membranes exhibiting high flux and good chlorine resistance.

McCray, S.B.

1989-10-24T23:59:59.000Z

384

Intercomparison of Various Surface Latent Heat Flux Fields  

Science Conference Proceedings (OSTI)

The Japanese Ocean Flux Data Sets with use of Remote Sensing Observations (J-OFURO) latent heat flux field is compared with the Hamburg Ocean–Atmosphere Parameters and Fluxes from Satellite Data (HOAPS), the Goddard Satellite-Based Surface ...

Masahisa Kubota; Atsuko Kano; Hidenori Muramatsu; Hiroyuki Tomita

2003-02-01T23:59:59.000Z

385

Gravity Wave 1-leat Fluxes: A Lagrangian Approach  

Science Conference Proceedings (OSTI)

The effect of a vertically propagating, internal gravity wave on the vertical flux of potential temperature (heat) is considered by averaging the local heat flux vector over a potential temperature surface. This approach gives the wave heat flux ...

Lawrence Coy; David C. Fritts

1988-06-01T23:59:59.000Z

386

A Model of the Air–Sea Momentum Flux and Breaking-Wave Distribution for Strongly Forced Wind Waves  

Science Conference Proceedings (OSTI)

Under high-wind conditions, breaking surface waves likely play an important role in the air–sea momentum flux. A coupled wind–wave model is developed based on the assumption that in the equilibrium range of surface wave spectra the wind stress is ...

Tobias Kukulka; Tetsu Hara; Stephen E. Belcher

2007-07-01T23:59:59.000Z

387

Single particle machine for generalized thermalization  

E-Print Network (OSTI)

The long time accumulation of the actions of single particle "reservoir" can transfer some information of its initial state to its coupled system. This dynamic process can be referred as a generalized thermalization since the coupled system can reach the same temperature as that of the reservoir in a thermal equilibrium. The system can be cooled and "coherently heated" as a maser process, respectively, when the reservoir is initially prepared in ground and excited states. Especially, when the "reservoir" in equilibrium is driven to possesses some coherence, the thermalized system may reach higher temperature in comparison with the reservoir. We also point out a possible experimental test for our theoretical prediction based on superconducting circuit QED.

Liao, Jie-Qiao; Sun, C P

2009-01-01T23:59:59.000Z

388

RADIATION FROM COMOVING POYNTING FLUX ACCELERATION  

Science Conference Proceedings (OSTI)

We derive analytic formulas for the radiation power output when electrons are accelerated by a relativistic comoving kinetic Poynting flux, and validate these analytic results with particle-in-cell simulations. We also derive analytically the critical frequency of the radiation spectrum. Potential astrophysical applications of these results are discussed. A quantitative model of gamma-ray bursts based on the breakout of kinetic Poynting flux is presented.

Liang, Edison; Noguchi, Koichi [Rice University, Houston TX 77005-1892 (United States)

2009-11-10T23:59:59.000Z

389

Radiation from Comoving Poynting Flux Acceleration  

E-Print Network (OSTI)

We derive analytic formulas for the radiation power output when electrons are accelerated by a relativistic comoving kinetic Poynting flux, and validate these analytic results with Particle-In-Cell simulations. We also derive analytically the critical frequency of the radiation spectrum. Potential astrophysical applications of these results are discussed. A quantitative model of gamma-ray bursts based on the breakout of kinetic Poynting flux is presented.

Liang, Edison

2009-01-01T23:59:59.000Z

390

Hybrid machine maintenance planning systems using case-based reasoning and evolution strategies  

Science Conference Proceedings (OSTI)

Machine failure prediction involves the processing of massive amounts of data, expert's knowledge of various types of machines, problems of noisy data and operation variability. The chief advantages of effective machine failure prediction are that it ...

Kan Yuen Sin / James Liu

2004-01-01T23:59:59.000Z

391

FE Magnetic Field Analysis Simulation Models based Design, Development, Control and Testing of An Axial Flux Permanent Magnet Linear Oscillating Motor  

E-Print Network (OSTI)

Abstract- Development, finite element(FE) analysis of magnetic field distribution, performance, control and testing of a new axial flux permanent magnet linear oscillating motor (PMLOM) along with a suitable speed and thrust control technique is described in this paper. The PMLOM can perform precision oscillation task without exceeding the given limit on allowable average power dissipation. The use of new powerful permanent magnet materials such as Neodymium-Iron-Boron alloys can greatly improve the performance of electrical machines. Also its performance parameters, such as the force, current etc. are experimentally assessed. The objective of this paper is to determine the forces for aluminium mover embedded with rare earth permanent magnet experimentally and analytically through FEMM software and develop a microcontroller based IGBT Inverter for its control. Index Terms- Axial flux machine, finite element analysis, microcontroller based IGBT inverter, permanent magnet linear oscillating motor, rare earth permanent magnet. I.

Govindaraj T; Prof Dr; Ashoke K. Ganguli

2009-01-01T23:59:59.000Z

392

High resolution fossil fuel combustion CO2 emission fluxes for...  

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

High resolution fossil fuel combustion CO2 emission fluxes for the United States Title High resolution fossil fuel combustion CO2 emission fluxes for the United States Publication...

393

Gas Flux Sampling (Klein, 2007) | Open Energy Information  

Open Energy Info (EERE)

Gas Flux Sampling (Klein, 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Gas Flux Sampling (Klein, 2007) Exploration Activity Details...

394

PRINCIPLE OF GLOBAL DECOUPLING WITH COUPLING ANGLE MODULATION.  

Science Conference Proceedings (OSTI)

The global betatron decoupling on the ramp is an important issue for the operation of the Relativistic Heavy Ion Collider (RHIC). A new scheme, coupling angle modulation, was found. By modulating two orthogonal skew quadrupole families, an extra rotating coupling is introduced into the coupled machine. The skew quadrupole modulation frequency is about 0.2Hz for the RHIC ramp, and 0.5Hz at injection and store. The eigentune changes are tracked with a high resolution phase lock loop (PLL) tune measurement system. The global coupling correction strengths are determined by the modulation skew quadrupole strengths at the minimum eigentune split multiplied by a factor k. k is determined by the uncoupled eigentune split and the maximum and the minimum tune split during the skew quadrupole modulation. This decoupling scheme is fast and robust. It had been verified at the RHIC and has been applied for the RHIC global decoupling on the ramp. In this article, the principle of the coupling angle modulation is presented in detail. Simulation results are also shown.

LUO, Y.; PILAT, F.; PEGGS, S.; TRBOJEVIC, D.; ROSER, T.

2005-05-16T23:59:59.000Z

395

LTC vacuum blasting machine (metal): Baseline report  

SciTech Connect

The LTC coating removal technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC coating removal system consisted of several hand tools, a Roto Peen scaler, and a needlegun. They are designed to remove coatings from steel, concrete, brick, and wood. These hand tools are used with the LTC PTC-6 vacuum system to capture dust and debris as removal of the coating takes place. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. The dust exposure was minimal but noise exposure was significant. Further testing for each exposure is recommended because of the environment where the testing demonstration took place. It is feasible that the dust and noise levels will be higher in an enclosed operating environment of different construction. In addition, other areas of concern found were arm-hand vibration, whole-body vibration, ergonomics, heat stress, tripping hazards, electrical hazards, machine guarding, and lockout/tagout.

1997-07-31T23:59:59.000Z

396

LTC vacuum blasting machine (concrete): Baseline report  

SciTech Connect

The LTC shot blast technology was tested and is being evaluated at Florida International University (FIU) as a baseline technology. In conjunction with FIU`s evaluation of efficiency and cost, this report covers the evaluation conducted for safety and health issues. It is a commercially available technology and has been used for various projects at locations throughout the country. The LTC 1073 Vacuum Blasting Machine uses a high-capacity, direct-pressure blasting system which incorporates a continuous feed for the blast media. The blast media cleans the surface within the contained brush area of the blast. It incorporates a vacuum system which removes dust and debris from the surface as it is blasted. The safety and health evaluation during the testing demonstration focused on two main areas of exposure: dust and noise. Dust exposure during maintenance activities was minimal, but due to mechanical difficulties dust monitoring could not be conducted during operation. Noise exposure was significant. Further testing for each of these exposures is recommended because of the outdoor environment where the testing demonstration took place. This may cause the results to be inaccurate. It is feasible that the dust and noise levels will be higher in an enclosed environment. In addition, other safety and health issues found were ergonomics, heat stress, tripping hazards, electrical hazards, lockout/tagout, and arm-hand vibration.

1997-07-31T23:59:59.000Z

397

Classification of Images Using Support Vector Machines  

E-Print Network (OSTI)

Support Vector Machines (SVMs) are a relatively new supervised classification technique to the land cover mapping community. They have their roots in Statistical Learning Theory and have gained prominence because they are robust, accurate and are effective even when using a small training sample. By their nature SVMs are essentially binary classifiers, however, they can be adopted to handle the multiple classification tasks common in remote sensing studies. The two approaches commonly used are the One-Against-One (1A1) and One-Against-All (1AA) techniques. In this paper, these approaches are evaluated in as far as their impact and implication for land cover mapping. The main finding from this research is that whereas the 1AA technique is more predisposed to yielding unclassified and mixed pixels, the resulting classification accuracy is not significantly different from 1A1 approach. It is the authors conclusions that ultimately the choice of technique adopted boils down to personal preference and the uniquene...

Anthony, Gidudu; Tshilidzi, Marwala

2007-01-01T23:59:59.000Z

398

Muon Collider Machine-Detector Interface  

SciTech Connect

In order to realize the high physics potential of a Muon Collider (MC) a high luminosity of {mu}{sup +}{mu}{sup -}-collisions at the Interaction Point (IP) in the TeV range must be achieved ({approx}10{sup 34} cm{sup -2}s{sup -1}). To reach this goal, a number of demanding requirements on the collider optics and the IR hardware - arising from the short muon lifetime and from relatively large values of the transverse emittance and momentum spread in muon beams that can realistically be obtained with ionization cooling should be satisfied. These requirements are aggravated by limitations on the quadrupole gradients as well as by the necessity to protect superconducting magnets and collider detectors from muon decay products. The overall detector performance in this domain is strongly dependent on the background particle rates in various sub-detectors. The deleterious effects of the background and radiation environment produced by the beam in the ring are very important issues in the Interaction Region (IR), detector and Machine-Detector Interface (MDI) designs. This report is based on studies presented very recently.

Mokhov, Nikolai V.; /Fermilab

2011-08-01T23:59:59.000Z

399

Energy Consumption Characterization and Reduction Strategies for Milling Machine Tool Use  

E-Print Network (OSTI)

Cutting Condition on Power Consumption of Machine Tools, in:Energy Consumption Characterization and Reduction Strategiesand reducing the energy consumption of milling machine tools

Diaz, Nancy; E. Redelsheimer; Dornfeld, David

2011-01-01T23:59:59.000Z

400

Energy Consumption Characterization and Reduction Strategies for Milling Machine Tool Use  

E-Print Network (OSTI)

Part Orientation for Face Milling, in: Annals of the CIRP,2010): Environmental Analysis of Milling Machine Tool Use inand Reduction Strategies for Milling Machine Tool Use Nancy

Diaz, Nancy; E. Redelsheimer; Dornfeld, David

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Environmental Analysis of Milling Machine Tool Use in Various Manufacturing Environments  

E-Print Network (OSTI)

Environmental Analysis of Milling Machine Tool Use inHorvath, David Dornfeld Milling is a type of cutting processof a standard vertical milling machine tool. In this

Diaz, Nancy; Helu, Moneer; Jayanathan, Stephen; Chen, Yifen; Horvath, Arpad; Dornfeld, David

2010-01-01T23:59:59.000Z

402

Energy Consumption Characterization and Reduction Strategies for Milling Machine Tool Use  

E-Print Network (OSTI)

Energy Consumption Characterization and Reduction Strategiesand reducing the energy consumption of milling machine toolsGreen Machine Tools; Energy Consumption Reduction; Specific

Diaz, Nancy; E. Redelsheimer; Dornfeld, David

2011-01-01T23:59:59.000Z

403

Water spray ventilator system for continuous mining machines  

DOE Patents (OSTI)

The invention relates to a water spray ventilator system mounted on a continuous mining machine to streamline airflow and provide effective face ventilation of both respirable dust and methane in underground coal mines. This system has two side spray nozzles mounted one on each side of the mining machine and six spray nozzles disposed on a manifold mounted to the underside of the machine boom. The six spray nozzles are angularly and laterally oriented on the manifold so as to provide non-overlapping spray patterns along the length of the cutter drum.

Page, Steven J. (Pittsburgh, PA); Mal, Thomas (Pittsburgh, PA)

1995-01-01T23:59:59.000Z

404

Flotation machine and process for removing impurities from coals  

DOE Patents (OSTI)

The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. When the hydraulic separator is used with a flotation system, the pyrite and certain other minerals particles that may have been entrained by hydrodynamic forces associated with conventional flotation machines and/or by the attachment forces associated with the formation of microagglomerates are washed and separated from the coal.

Szymocha, Kazimierz (Edmonton, CA); Ignasiak, Boleslaw (Edmonton, CA); Pawlak, Wanda (Edmonton, CA); Kulik, Conrad (Newark, CA); Lebowitz, Howard E. (Mountain View, CA)

1997-01-01T23:59:59.000Z

405

Flotation machine and process for removing impurities from coals  

DOE Patents (OSTI)

The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. When the hydraulic separator is used with a flotation system, the pyrite and certain other minerals particles that may have been entrained by hydrodynamic forces associated with conventional flotation machines and/or by the attachment forces associated with the formation of microagglomerates are washed and separated from the coal.

Szymocha, Kazimierz (Edmonton, CA); Ignasiak, Boleslaw (Edmonton, CA); Pawlak, Wanda (Edmonton, CA); Kulik, Conrad (Newark, CA); Lebowitz, Howard E. (Mountain View, CA)

1995-01-01T23:59:59.000Z

406

Atmospheric Transports, the Thermohaline Circulation, and Flux Adjustments in a Simple Coupled Model  

Science Conference Proceedings (OSTI)

A theoretical analysis of the interactions between atmospheric meridional transports and the thermohaline circulation is presented, using a four-box ocean-atmosphere model in one hemisphere. The model is a simplified version of that developed by ...

Jochem Marotzke; Peter H. Stone

1995-06-01T23:59:59.000Z

407

Surface-Flux Regulation of the Coupling between Cumulus Convection and Baroclinic Waves  

Science Conference Proceedings (OSTI)

The authors examine the role of convection in the dynamics of eddy life cycles through numerical experiments using initial states that are baroclinically and conditionally unstable in midlatitudes. The location of wave-induced convection and its ...

William J. Gutowski Jr.; Weidong Jiang

1998-03-01T23:59:59.000Z

408

High energy electron fluxes in dc-augmented capacitively coupled plasmas I. Fundamental characteristics  

E-Print Network (OSTI)

as max=-Vdc+Vrf+Vrf0, for a voltage on the dc electrode of Vdc, rf voltage of Vrf, and dc bias on the rf electrode of Vrf0. The dc current from the biased electrode must return to ground through surfaces other

Kushner, Mark

409

Integrated framework for the flux calculation of neutral species inside trenches and holes during plasma etching  

SciTech Connect

An integrated framework for the neutral flux calculation inside trenches and holes during plasma etching is described, and a comparison between the two types of structure in a number of applications is presented. First, a detailed and functional set of equations for the neutral and ion flux calculations inside long trenches and holes with cylindrical symmetry is explicitly formulated. This set is based on early works [T. S. Cale and G. B. Raupp, J. Vac. Sci. Technol. B 8, 1242 (1990); V. K. Singh et al., J. Vac. Sci. Technol. B 10, 1091 (1992)], and includes new equations for the case of holes with cylindrical symmetry. Second, a method for the solution of the respective numerical task, i.e., one or a set of linear or nonlinear integral equations, is described. This method includes a coupling algorithm with a surface chemistry model and resolves the singularity problem of the integral equations. Third, the fluxes inside trenches and holes are compared. The flux from reemission is the major portion of the local flux at the bottom of both types of structure. The framework is applied in SiO{sub 2} etching by fluorocarbon plasmas to predict the increased intensity of reactive ion etching lag in SiO{sub 2} holes compared to trenches. It is also applied in deep Si etching: By calculating the flux of F atoms at the bottom of very high aspect ratio (up to 150) Si trenches and holes during the gas chopping process, the aspect ratio at which the flux of F atoms is eliminated and etching practically stops is estimated.

Kokkoris, George; Boudouvis, Andreas G.; Gogolides, Evangelos [Institute of Microelectronics, NCSR ' Demokritos' , Aghia Paraskevi, Attiki 15310 (Greece); School of Chemical Engineering, National Technical University of Athens, Zographou Campus, Attiki 15780 (Greece); Institute of Microelectronics, NCSR ' Demokritos' , Aghia Paraskevi, Attiki 15310 (Greece)

2006-11-15T23:59:59.000Z

410

Time-resolved measurements of hydrogen and deuterium fluxes in the ASDEX plasma boundary  

DOE Green Energy (OSTI)

Hydrogen and deuterium fluxes parallel to the toroidal magnetic field were measured in the plasma boundary of ASDEX using graphite collector probes. Time resolution of the order of 100 ms can be obtained by rotating the cylindrical probes behind an aperture during the discharge. The trapped amount of hydrogen was determined by subsequent thermal desorption; in the analyses of deuterium the D(/sup 3/He,p)/sup 4/He nuclear reaction was used. Both methods yield quantitative results. Measurements were done for limiter and divertor discharges in the range of 4 to 20 cm outside the limiter or separatrix. The time distributions show a maximum flux at the beginning and the end of the discharge. The relatively lower flux during the plateau phase of the discharge is in the range 10/sup 15/ to 2 x 10/sup 17/ cm/sup -2/ sec/sup -1/, depending on the radial probe position; the maximum values are higher by a factor of 5 to 50. During neutral hydrogen injection, an additional maximum can be observed. The radial l/e-decay length is about 0.9 cm in front and 0.4 cm behind the fixed limiter. The results are compared with independent measurements in ASDEX and other plasma machines.

Roth, J.; Varga, P.; Martinelli, A.P.; Scherzer, B.M.U.; Chen, C.K.; Wampler, W.R.; Taglauer, E.

1982-01-01T23:59:59.000Z

411

Underground particle fluxes in the Soudan mine.  

E-Print Network (OSTI)

This is a summary of our knowledge of the underground particle fluxes in the vicinity of Soudan 2 and of the future MINOS detector. It includes a brief description of the measured muon fluxes and of the gamma ray spectra deduced from measurements of 238 U, 232 Th and 40 K concentrations in the rock. Counting rates in gaseous and scintillation detectors are estimated. Some data on what is known about the chemical composition of the local rocks are included; these are relevant to an understanding of the underground muon rates and also to a calculation of low energy neutron fluxes. 1 Introduction As plans for the MINOS detector and for the excavation of a new detector hall progress, some people have begun asking what is known of the fluxes of various particles underground. The muon flux is relevant for possibly calibrating and certainly for monitoring the long term behavior of the detector. It will likely be the determining factor in the eventual trigger rate if the MINOS det...

Keith Ruddick; Keith Ruddick; Th

1996-01-01T23:59:59.000Z

412

TENTH WORLD CONGRESS ON THE THEORY OF MACHINES AND MECHANISMS  

E-Print Network (OSTI)

for Intelligent Machines, 817 Sherbrooke W., Montreal, Quebec, H3A 2K6 Canada. email: johnh@cim.mcgill.ca, kourosh@cim.mcgill.ca, angeles@cim.mcgill.ca Keywords: approximate kinematic synthesis, design, structural error, function

Hayes, John

413

A case for high performance computing with virtual machines  

Science Conference Proceedings (OSTI)

Virtual machine (VM) technologies are experiencing a resurgence in both industry and research communities. VMs offer many desirable features such as security, ease of management, OS customization, performance isolation, check-pointing, and migration, ...

Wei Huang; Jiuxing Liu; Bulent Abali; Dhabaleswar K. Panda

2006-06-01T23:59:59.000Z

414

Induction machine stray loss from inter-bar currents  

E-Print Network (OSTI)

Stray load loss refers generally to the sources of induction machine loss not accounted for by typical calculations of primary or secondary copper loss, no load core loss, or friction and windage loss. Harmonic rotor bar ...

Englebretson, Steven Carl

2009-01-01T23:59:59.000Z

415

CRAD, Machine Shop Safe Operations Assessment Plan | Department of Energy  

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

Machine Shop Safe Operations Assessment Plan Machine Shop Safe Operations Assessment Plan CRAD, Machine Shop Safe Operations Assessment Plan Performance Objective: The purpose of this assessment is to verify that machine shop operators are provided a safe and healthful workplace which will reduce or prevent injuries, illnesses, and accidental losses. Criteria: A worker protection program shall be implemented that provides a place of employment free from recognized hazards that are causing or likely to cause death or serious physical harm. (DOE O 440.1A Contractor Requirements Document (CRD)) Employees shall be encouraged to become involved in the identification and control of hazards in the workplace. (DOE O 440.1A CRD) Workers shall have the right, without reprisal, to accompany DOE worker protection personnel during workplace inspections. (DOE O44.1A

416

Enforcing performance isolation across virtual machines in xen  

Science Conference Proceedings (OSTI)

Virtual machines (VMs) have recently emerged as the basis for allocating resources in enterprise settings and hosting centers. One benefit of VMs in these environments is the ability to multiplex several operating systems on hardware based on dynamically ...

Diwaker Gupta; Ludmila Cherkasova; Rob Gardner; Amin Vahdat

2006-11-01T23:59:59.000Z

417

General Orientation to the Building 433 LOM Machine Shop  

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

grinder in the LOM Machine Shop to grind non-ferrous materials (e.g., aluminum, brass, plastics, or wood). * Contact the Shop Coordinator or an APS Floor Coordinator if you...

418

Simple Memory Machine Models for GPUs Koji Nakano  

E-Print Network (OSTI)

Simple Memory Machine Models for GPUs Koji Nakano Department of Information Engineering Hiroshima University Kagamiyama 1-4-1, Higashi Hiroshima, 739-8527 Japan Email: nakano@cs.hiroshima-u.ac.jp Abstract

Moreno Maza, Marc

419

Substrate denaturation and translocation by a proteolytic machine  

E-Print Network (OSTI)

Many AAA+ molecular machines generate power and drive cellular processes by harnessing energy from cycles of ATP hydrolysis. ClpX is a relatively simple AAA+ ATPase that powers regulated protein degradation by binding ...

Kenniston, Jon Anders

2005-01-01T23:59:59.000Z

420

A Machine Learning System for Recognizing Subclasses (Demo)  

SciTech Connect

Thematic information extraction from remote sensing images is a complex task. In this demonstration, we present *Miner machine learning system. In particular, we demonstrate an advanced subclass recognition algorithm that is specifically designed to extract finer classes from aggregate classes.

Vatsavai, Raju [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Machine learning for host-based anomaly detection  

Science Conference Proceedings (OSTI)

Anomaly detection techniques complement, signature based methods for intrusion detection. Machine learning approaches are applied to anomaly detection for automated learning and detection. Traditional host-based anomaly detectors model system call sequences ...

Gaurav Tandon / Philip K. Chan

2008-01-01T23:59:59.000Z

422

Face occlusion detection for automated teller machine surveillance  

Science Conference Proceedings (OSTI)

Real time automatic alarm systems play an essential role in security management, as evidenced by the surveillance cameras installed in nearly all automated teller machines (ATMs). Whereas manual video surveillance requires constant staff monitoring, ...

Daw-Tung Lin; Ming-Ju Liu

2006-12-01T23:59:59.000Z

423

KCP relocates 18-ton machine | National Nuclear Security Administratio...  

National Nuclear Security Administration (NNSA)

8 a.m. and by lunchtime that day, it was in place at the NSC. The machine will undergo laser alignment and build test parts around mid-June. It will be ready for production again...

424

Designing a unified programming model for heterogeneous machines  

Science Conference Proceedings (OSTI)

While high-efficiency machines are increasingly embracing heterogeneous architectures and massive multithreading, contemporary mainstream programming languages reflect a mental model in which processing elements are homogeneous, concurrency is limited, ...

Michael Garland; Manjunath Kudlur; Yili Zheng

2012-11-01T23:59:59.000Z

425

Applications of machine learning: matching problems to tasks and methods  

Science Conference Proceedings (OSTI)

The terminology of Machine Learning and Data Mining methods does not always allow a simple match between practical problems and methods. While some problems look similar from the user's point of view, but require different methods to be solved, some ...

Maarten Van Someren; Tanja Urban?i?

2005-12-01T23:59:59.000Z

426

Water-Cooled Ice Machines, Purchasing Specifications for Energy...  

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

Ice Makers. b) Measured in accordance with ARI Standard 810-2003. Does not include condenser water use. Buying Energy-Efficient Water-Cooled Ice Machines Several types of...

427

Simplified hybrid-secondary uncluttered machine and method ...  

An electric machine (40, 40') has a stator (43) and a rotor (46) and a primary air gap (48) has secondary coils (47c, 47d) separated from the rotor (46) by a ...

428

Development of magnetic induction machines for micro turbo machinery  

E-Print Network (OSTI)

This thesis presents the nonlinear analysis, design, fabrication, and testing of an axial-gap magnetic induction micro machine, which is a two-phase planar motor in which the rotor is suspended above the stator via mechanical ...

KöÅŸ er, Hür, 1976-

2002-01-01T23:59:59.000Z

429

Approximation algorithms for stochastic scheduling on unrelated machines  

E-Print Network (OSTI)

Motivated by problems in distributed computing, this thesis presents the first nontrivial polynomial time approximation algorithms for an important class of machine scheduling problems. We study the family of preemptive ...

Scott, Jacob (Jacob Healy)

2008-01-01T23:59:59.000Z

430

Logomatic Gmbh Grinding Machines Fabrication | Open Energy Information  

Open Energy Info (EERE)

Logomatic Gmbh Grinding Machines Fabrication Logomatic Gmbh Grinding Machines Fabrication Jump to: navigation, search Name Logomatic Gmbh Grinding Machines Fabrication Place Mainaschaff, Germany Zip D-63814 Sector Solar Product German manufacturer of capital equipment for semiconductor and solar industries; for solar, offers diamond cropping and squaring machines. Coordinates 49.97746°, 9.085379° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":49.97746,"lon":9.085379,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

431

A Machine Learning Evaluation of an Artificial Immune System  

Science Conference Proceedings (OSTI)

ARTIS is an artificial immune system framework which contains several adaptive mechanisms. LISYS is a version of ARTIS specialized for the problem of network intrusion detection. The adaptive mechanisms of LISYS are characterized in terms of their machine-learning ...

Matthew Glickman; Justin Balthrop; Stephanie Forrest

2005-06-01T23:59:59.000Z

432

Machine Learning for the New York City Power Grid  

E-Print Network (OSTI)

Power companies can benefit from the use of knowledge discovery methods and statistical machine learning for preventive maintenance. We introduce a general process for transforming historical electrical grid data into ...

Rudin, Cynthia

433

Energy Flux We discuss various ways of describing energy flux and related quantities.  

E-Print Network (OSTI)

Chapter 6 Energy Flux We discuss various ways of describing energy flux and related quantities. 6.0.1 Energy Current Density The energy current density is given by the Poynting vector S = E Ã? H (6.1) where all quantities are real. The Poynting vector gives the instantaneous lo- cal energy current density

Palffy-Muhoray, Peter

434

Machine to machine (M2M) technology in demand responsive commercial buildings  

SciTech Connect

Machine to Machine (M2M) is a term used to describe the technologies that enable computers, embedded processors, smart sensors, actuators and mobile devices to communicate with one another, take measurements and make decisions--often without human intervention. M2M technology was applied to five commercial buildings in a test. The goal was to reduce electric demand when a remote price signal rose above a predetermine price. In this system, a variable price signal was generated from a single source on the Internet and distributed using the meta-language, XML (Extensible Markup Language). Each of five commercial building sites monitored the common price signal and automatically shed site-specific electric loads when the price increased above predetermined thresholds. Other than price signal scheduling, which was set up in advance by the project researchers, the system was designed to operate without human intervention during the two-week test period. Although the buildings responded to the same price signal, the communication infrastructures used at each building were substantially different. This study provides an overview of the technologies used at each building site, the price generator/server, and each link in between. Network architecture, security, data visualization and site-specific system features are characterized. The results of the test are discussed, including: functionality at each site, measurement and verification techniques, and feedback from energy managers and building operators. Lessons learned from the test and potential implications for widespread rollout are provided.

Watson, David S.; Piette, Mary Ann; Sezgen, Osman; Motegi, Naoya; ten Hope, Laurie

2004-08-01T23:59:59.000Z

435

Enhanced Interpretation of Electromagnetic Signature Analysis for Large Machines  

Science Conference Proceedings (OSTI)

This project developed and applied frequency domain models to enhance interpretation of electromagnetic signature analysis (EMSA) for large electrical generators. The project's rationale was to provide a prediction of the native frequency response of the winding calculated from machine dimensions and design data so that the positions of the resonances would be known a priore. This procedure allowed augmentation of an EMSA spectrum at the characteristic resonant frequencies of the machine in the interpret...

2010-11-16T23:59:59.000Z

436

OBSERVATIONAL EVIDENCE OF A MAGNETIC FLUX ROPE ERUPTION  

E-Print Network (OSTI)

fields of the flux rope were partly opened due to magnetic reconnection. Subject headings: Sun: flares to escape with a fairly small reconnection rate in the vertical current sheet created below. Magnetic flux an interesting flux rope eruption model for fast CMEs, in which a flux rope is in a specific sling-shot field

437

Heterotic type IIA duality with fluxes - towards the complete story  

E-Print Network (OSTI)

In this paper we study the heterotic type IIA duality when fluxes are turned on. We show that many of the known fluxes are dual to each other and claim that certain fluxes on the heterotic side require that the type IIA picture is lifted to M or even F-theory compactifications with geometric fluxes.

Andrei Micu

2010-09-13T23:59:59.000Z

438

The ECPC Coupled Prediction Model  

Science Conference Proceedings (OSTI)

This paper presents a new Experimental Climate Prediction Center (ECPC) Coupled Prediction Model (ECPM). The ECPM includes the Jet Propulsion Laboratory (JPL) version of the Massachusetts Institute of Technology (MIT) ocean model coupled to the ...

E. Yulaeva; M. Kanamitsu; J. Roads

2008-01-01T23:59:59.000Z

439

Online Load Balancing on Unrelated Machines with Startup Costs  

E-Print Network (OSTI)

Motivated by applications in energy-efficient scheduling in data centers, Khuller, Li, and Saha introduced the {\\em machine activation} problem as a generalization of the classical optimization problems of set cover and load balancing on unrelated machines. In this problem, a set of $n$ jobs have to be distributed among a set of $m$ (unrelated) machines, given the processing time of each job on each machine, where each machine has a startup cost. The goal is to produce a schedule of minimum total startup cost subject to a constraint $\\bf L$ on its makespan. While Khuller {\\em et al} considered the offline version of this problem, a typical scenario in scheduling is one where jobs arrive online and have to be assigned to a machine immediately on arrival. We give an $(O(\\log (mn)\\log m), O(\\log m))$-competitive randomized online algorithm for this problem, i.e. the schedule produced by our algorithm has a makespan of $O({\\bf L} \\log m)$ with high probability, and a total expected startup cost of $O(\\log (mn)\\lo...

Azar, Yossi

2012-01-01T23:59:59.000Z

440

Homopolar machine for reversible energy storage and transfer systems  

DOE Patents (OSTI)

A homopolar machine designed to operate as a generator and motor in reversibly storing and transferring energy between the machine and a magnetic load coil for a thermo-nuclear reactor. The machine rotor comprises hollow thin-walled cylinders or sleeves which form the basis of the system by utilizing substantially all of the rotor mass as a conductor thus making it possible to transfer substantially all the rotor kinetic energy electrically to the load coil in a highly economical and efficient manner. The rotor is divided into multiple separate cylinders or sleeves of modular design, connected in series and arranged to rotate in opposite directions but maintain the supply of current in a single direction to the machine terminals. A stator concentrically disposed around the sleeves consists of a hollow cylinder having a number of excitation coils each located radially outward from the ends of adjacent sleeves. Current collected at an end of each sleeve by sleeve slip rings and brushes is transferred through terminals to the magnetic load coil. Thereafter, electrical energy returned from the coil then flows through the machine which causes the sleeves to motor up to the desired speed in preparation for repetition of the cycle. To eliminate drag on the rotor between current pulses, the brush rigging is designed to lift brushes from all slip rings in the machine.

Stillwagon, Roy E. (Ruffsdale, PA)

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flux coupling machines" 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

Homopolar machine for reversible energy storage and transfer systems  

DOE Patents (OSTI)

A homopolar machine designed to operate as a generator and motor in reversibly storing and transferring energy between the machine and a magnetic load coil for a thermo-nuclear reactor. The machine rotor comprises hollow thin-walled cylinders or sleeves which form the basis of the system by utilizing substantially all of the rotor mass as a conductor thus making it possible to transfer substantially all the rotor kinetic energy electrically to the load coil in a highly economical and efficient manner. The rotor is divided into multiple separate cylinders or sleeves of modular design, connected in series and arranged to rotate in opposite directions but maintain the supply of current in a single direction to the machine terminals. A stator concentrically disposed around the sleeves consists of a hollow cylinder having a number of excitation coils each located radially outward from the ends of adjacent sleeves. Current collected at an end of each sleeve by sleeve slip rings and brushes is transferred through terminals to the magnetic load coil. Thereafter, electrical energy returned from the coil then flows through the machine which causes the sleeves to motor up to the desired speed in preparation for repetition of the cycle. To eliminate drag on the rotor between current pulses, the brush rigging is designed to lift brushes from all slip rings in the machine.

Stillwagon, Roy E. (South Huntington Township, Huntington County, PA)

1978-01-01T23:59:59.000Z

442

Energy flux limitation by tame turbulence  

SciTech Connect

A quasi-linear theory of energy flux limitation by ion acoustic turbulence is presented. This distribution function is modelled by a Maxwellian plus an additional piece which carries a heat flux Q. By taking the fourth moment of the Vlasov equation one finds the anomalous thermal conductivity K approximately 3 v/sub e/ delta/sub De/ (e phi/T/sub e/)$sup -2$. Other moments treated self-consistently include anomalous ion heating, electron cooling, current generation and enhanced inverse bremsstrahlung due to the nonthermal ion fluctuations. (auth)

Manheimer, W.M.

1975-11-01T23:59:59.000Z

443

Plasma momentum meter for momentum flux measurements  

DOE Patents (OSTI)

Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer--a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing and sputtering, and materials used in the target and pendulum are electrically insulating, rigid even at elevated temperatures, and have low thermal conductivity. The instrument enables measurement of small forces (10.sup.-5 to 10.sup.3 N) accompanied by high heat fluxes which are transmitted by energetic particles with 10's of eV of kinetic energy in a intense magnetic field and pulsed plasma environment.

Zonca, Fulvio (Rome, IT); Cohen, Samuel A. (Hopewell, NJ); Bennett, Timothy (Princeton, NJ); Timberlake, John R. (Allentown, NJ)

1993-01-01T23:59:59.000Z

444

Plasma momentum meter for momentum flux measurements  

DOE Patents (OSTI)

Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer - a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing and sputtering, and materials used in the target and pendulum are electrically insulating, rigid even at elevated temperatures, and have low thermal conductivity. The instrument enables measurement of small forces (10{sup {minus}5} to 10{sup 3} N) accompanied by high heat fluxes which are transmitted by energetic particles with 10`s of eV of kinetic energy in an intense magnetic field and pulsed plasma environment.

Zonca, F.; Cohen, S.A.; Bennett, T.; Timberlake, J.R.

1991-12-31T23:59:59.000Z

445

Plasma momentum meter for momentum flux measurements  

DOE Patents (OSTI)

Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer - a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing and sputtering, and materials used in the target and pendulum are electrically insulating, rigid even at elevated temperatures, and have low thermal conductivity. The instrument enables measurement of small forces (10[sup [minus]5] to 10[sup 3] N) accompanied by high heat fluxes which are transmitted by energetic particles with 10's of eV of kinetic energy in an intense magnetic field and pulsed plasma environment.

Zonca, F.; Cohen, S.A.; Bennett, T.; Timberlake, J.R.

1991-01-01T23:59:59.000Z

446

On the use of flux limiters in the discrete ordinates method for 3D radiation calculations in absorbing and scattering media  

Science Conference Proceedings (OSTI)

The application of flux limiters to the discrete ordinates method (DOM), S"N, for radiative transfer calculations is discussed and analyzed for 3D enclosures for cases in which the intensities are strongly coupled to each other such as: radiative equilibrium ... Keywords: Discrete ordinates method (DOM), Flux limiters, Newton-Krylov GMRES, Non-homogeneous 3D media, Radiation heat transfer, Radiative transfer equation (RTE), TVD schemes

William F. Godoy; Paul E. DesJardin

2010-05-01T23:59:59.000Z

447

In-line drivetrain and four wheel drive work machine using same  

DOE Patents (OSTI)

A four wheel drive articulated mine loader is powered by a fuel cell and propelled by a single electric motor. The drivetrain has the first axle, second axle, and motor arranged in series on the work machine chassis. Torque is carried from the electric motor to the back differential via a pinion meshed with the ring gear of the back differential. A second pinion oriented in an opposite direction away from the ring gear is coupled to a drive shaft to transfer torque from the ring gear to the differential of the front axle. Thus, the ring gear of the back differential acts both to receive torque from the motor and to transfer torque to the forward axle. The in-line drive configuration includes a single electric motor and a single reduction gear to power the four wheel drive mine loader.

Hoff, Brian (East Peoria, IL)

2008-08-05T23:59:59.000Z

448

Sealing coupling. [LMFBR  

DOE Patents (OSTI)

Disclosed is a remotely operable releasable sealing coupling which provides fluid-tight joinder of upper and a lower conduit sections. Each conduit section has a concave conical sealing surface adjacent its end portion. A tubular sleeve having convex spherical ends is inserted between the conduit ends to form line contact with the concave conical end portions. An inwardly projecting lip located at one end of the sleeve cooperates with a retaining collar formed on the upper pipe end to provide swivel capture for the sleeve. The upper conduit section also includes a tapered lower end portion which engages the inside surface of the sleeve to limit misalignment of the connected conduit sections.

Pardini, J.A.; Brubaker, R.C.; Rusnak, J.J.

1982-09-20T23:59:59.000Z

449

Atmospheric neutrino flux at INO, South Pole and Pyhäsalmi  

E-Print Network (OSTI)

We present the calculation of the atmospheric neutrino fluxes for the neutrino experiments proposed at INO, South Pole and Pyh\\"asalmi. Neutrino fluxes have been obtained using ATMNC, a simulation code for cosmic ray in the atmosphere. Even using the same primary flux model and the interaction model, the calculated atmospheric neutrino fluxes are different for the different sites due to the geomagnetic field. The prediction of these fluxes in the present paper would be quite useful in the experimental analysis.

M. Sajjad Athar; M. Honda; T. Kajita; K. Kasahara; S. Midorikawa

2012-10-18T23:59:59.000Z

450

Precise global collision detection in multi-axis NC-machining  

Science Conference Proceedings (OSTI)

We introduce a new approach to the problem of collision detection in multi-axis NC-machining. Due to the directional nature (tool axis) of multi-axis NC-machining, space subdivision techniques are adopted from ray-tracing algorithms and are extended ... Keywords: 5-Axis machining, Collision detection and verification, Lower envelopes, NC-machining, Ray tracing, Space subdivision

Oleg Ilushin; Gershon Elber; Dan Halperin; Ron Wein; Myung-Soo Kim

2005-08-01T23:59:59.000Z

451

Application of Particle Swarm Optimization technique for achieving desired milled surface roughness in minimum machining time  

Science Conference Proceedings (OSTI)

Face milling is a widely used machining operation to produce various components. The finished component depends not only on the dimensional accuracy but also on the surface finish. The present method of selection of machining parameters by trial and ... Keywords: Face milling, Machining parameters, Machining time, Particle Swarm Optimization, Surface roughness

S. Bharathi Raja; N. Baskar

2012-04-01T23:59:59.000Z

452

A comparative study for content-based dynamic spam classification using four machine learning algorithms  

Science Conference Proceedings (OSTI)

The growth of email users has resulted in the dramatic increasing of the spam emails during the past few years. In this paper, four machine learning algorithms, which are Naive Bayesian (NB), neural network (NN), support vector machine (SVM) and relevance ... Keywords: Naïve Bayesian, Neural network, Relevance vector machine, Spam classification, Support vector machine

Bo Yu; Zong-ben Xu

2008-05-01T23:59:59.000Z

453

Development of a Coupled Land Surface Hydrologic Model and Evaluation at a Critical Zone Observatory  

Science Conference Proceedings (OSTI)

A fully-coupled land surface hydrologic model, Flux-PIHM, is developed by incorporating a land-surface scheme into the Penn State Integrated Hydrologic Model (PIHM). The land-surface scheme is adapted from the Noah LSM. Because PIHM is capable of ...

Yuning Shi; Kenneth J. Davis; Christopher J. Duffy; Xuan Yu

454

Atlantic Thermohaline Circulation in a Coupled General Circulation Model: Unforced Variations versus Forced Changes  

Science Conference Proceedings (OSTI)

A 1200-yr unforced control run and future climate change simulations using the Parallel Climate Model (PCM), a coupled atmosphere–ocean–land–sea ice global model with no flux adjustments and relatively high resolution (2.8° for the atmosphere ...

Aiguo Dai; A. Hu; G. A. Meehl; W. M. Washington; W. G. Strand

2005-08-01T23:59:59.000Z

455

Sensitivity of the Arctic Climate to Leads in a Coupled Atmosphere-Mixed Layer Ocean Model  

Science Conference Proceedings (OSTI)

The thermodynamic sea ice code in a coupled atmosphere-mixed layer ocean GCM has been altered to allow the presence of open water within an ice pack (leads) and a prescribed turbulent oceanic heat flux at the ice bottom. Two experiments with the ...

Stephen J. Vavrus

1995-02-01T23:59:59.000Z

456

Radiation from Kinetic Poynting Flux Acceleration  

E-Print Network (OSTI)

We derive analytic formulas for the power output and critical frequency of radiation by electrons accelerated by relativistic kinetic Poynting flux, and validate these results with Particle-In-Cell plasma simulations. We find that the in-situ radiation power output and critical frequency are much below those predicted by the classical synchrotron formulae. We discuss potential astrophysical applications of these results.

Edison Liang; Koichi Noguchi

2007-04-13T23:59:59.000Z

457

Estimation of Global Ground Heat Flux  

Science Conference Proceedings (OSTI)

This study investigates the use of a previously published algorithm for estimating ground heat flux (GHF) at the global scale. The method is based on an analytical solution of the diffusion equation for heat transfer in a soil layer and has been ...

William B. Bennett; Jingfeng Wang; Rafael L. Bras

2008-08-01T23:59:59.000Z

458

A Convective Transport Theory for Surface Fluxes  

Science Conference Proceedings (OSTI)

For a boundary layer in free convection where turbulent thermal structures communicate information between the surface and the interior of the mixed layer, it is hypothesized that the surface momentum flux can be parameterized by u*2 = bDwBMML, ...

Roland B. Stull

1994-01-01T23:59:59.000Z

459

URANIUM MILL TAILINGS RADON FLUX CALCULATIONS  

E-Print Network (OSTI)

URANIUM MILL TAILINGS RADON FLUX CALCULATIONS PIÃ?ON RIDGE PROJECT MONTROSE COUNTY, COLORADO (EFRC) proposes to license, construct, and operate a conventional acid leach uranium and vanadium mill storage pad, and access roads. The mill is designed to process ore containing uranium and vanadium

460

Flux Power Incorporated | Open Energy Information  

Open Energy Info (EERE)

Flux Power Incorporated Flux Power Incorporated Jump to: navigation, search Name Flux Power Incorporated Place Vista, California Zip 92081 Product California-based FLux Ppower was created in late-2009 to provide monitoring, diagnostics and charging technology aimed at extending the life of lithium-ion batteries. The company signed a supply deal with Wheego in January 2010. Coordinates 37.989712°, -93.665689° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.989712,"lon":-93.665689,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "flux coupling machines" 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

Defect-free ultrahigh flux asymmetric membranes  

DOE Patents (OSTI)

Defect-free, ultrahigh flux integrally-skinned asymmetric membranes having extremely thin surface layers (<0.2 .mu.m) comprised of glassy polymers are disclosed. The membranes are formed by casting an appropriate drope followed by forced convective evaporation of solvent to obtain a dry phase separated asymmetrical structure. The structure is then washed in a precipitation liquid and dried.

Pinnau, Ingo (Austin, TX); Koros, William J. (Austin, TX)

1990-01-01T23:59:59.000Z

462

The Kelastic variable wall mining machine. Interim final report  

SciTech Connect

This machine cuts coal along a longwall face extending up to 500 feet by a rotating auger with bits. The machine also transports the coal that is cut acting as screw conveyor. By virtue of an integral shroud comprising part of the conveyor the machine is also amenable to a separation of the zones where men work from air being contaminated by dust and methane gas by the cutting action. Beginning as single intake air courses, the air separates at the working section where one split provides fresh air to the Occupied Zone (OZ) for human needs and the other split purges and carries away dust and methane from face fragmentation in the Cutting Zone (CZ). The attractiveness of the Variable Wall Mining Machine is that it addresses the limitations of current longwall mining equipment: it can consistently out-produce continuous mining machines and most longwall shearing machines. It also is amenable to configuring an environment, the dual-duct system, where the air for human breathing is separated from dust-laden ventilating air with methane mixtures. The objective of the research was to perform a mathematical and experimental study of the interrelationships of the components of the system so that a computer model could demonstrate the workings of the system in an animation program. The analysis resulted in the compilation of the parameters for three different configurations of a dual aircourse system of ventilating underground mines. In addressing the goal of an inherently safe mining system the dual-duct adaptation to the Variable Wall Mining Machine appears to offer the path to solution. The respirable dust problem is solvable; the explosive dust problem is nearly solvable; and the explosive methane problem can be greatly reduced. If installed in a highly gassy mine, the dual duct models would also be considerably less costly.

1995-11-12T23:59:59.000Z

463

Ion-acoustic cnoidal wave and associated non-linear ion flux in dusty plasma  

Science Conference Proceedings (OSTI)

Using reductive perturbation method with appropriate boundary conditions, coupled evolution equations for first and second order potentials are derived for ion-acoustic waves in a collisionless, un-magnetized plasma consisting of hot isothermal electrons, cold ions, and massive mobile charged dust grains. The boundary conditions give rise to renormalization term, which enable us to eliminate secular contribution in higher order terms. Determining the non secular solution of these coupled equations, expressions for wave phase velocity and averaged non-linear ion flux associated with ion-acoustic cnoidal wave are obtained. Variation of the wave phase velocity and averaged non-linear ion flux as a function of modulus (k{sup 2}) dependent wave amplitude are numerically examined for different values of dust concentration, charge on dust grains, and mass ratio of dust grains with plasma ions. It is found that for a given amplitude, the presence of positively (negatively) charged dust grains in plasma decreases (increases) the wave phase velocity. This behavior is more pronounced with increase in dust concentrations or increase in charge on dust grains or decrease in mass ratio of dust grains. The averaged non-linear ion flux associated with wave is positive (negative) for negatively (positively) charged dust grains in the plasma and increases (decreases) with modulus (k{sup 2}) dependent wave amplitude. For given amplitude, it increases (decreases) as dust concentration or charge of negatively (positively) charged dust grains increases in the plasma.

Jain, S. L. [Poornima Group of Institution, Sitapura, Jaipur 302022 (India); Tiwari, R. S. [Regional College for Education, Research and Technology, Jaipur 302022 (India); Mishra, M. K. [Department of Physics, University of Rajasthan, Jaipur 302004 (India)

2012-10-15T23:59:59.000Z

464

Non-Linear Luminescent Coupling in Series-Connected Multijunction Solar Cells  

Science Conference Proceedings (OSTI)

The assumption of superposition or linearity of photocurrent with solar flux is widespread for calculations and measurements of solar cells. The well-known effect of luminescent coupling in multijunction solar cells has also been assumed to be linear with excess current. Here we show significant non-linearities in luminescent coupling in III-V multijunction solar cells and propose a simple model based on competition between radiative and nonradiative processes in the luminescent junction to explain these non-linearities. We demonstrate a technique for accurately measuring the junction photocurrents under a specified reference spectrum, that accounts for and quantifies luminescent coupling effects.

Steiner, M. A.; Geisz, J. F.

2012-06-18T23:59:59.000Z

465

ENERGY & UTILITIES ORNL-1895 A Novel Method for Improving Flux ...  

benefit from the proposed method, including power cables, fault-current limiters, transformers, MRI machines, and rotor coils. Stage of Development: ...

466

coupling2.dvi  

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

Measurement Measurement of Input Coupler Matching of a Loaded Storage Ring Single-Cell Cavity Jin Wook Cho, Yoon Kang Advanced Photon Source Argonne National Laboratory 9700 S. Cass Ave., Argonne, IL 60439 August 14, 1995 1 Introduction In the APS storage ring cavities, magnetic loop type input couplers are used. The loaded Q fo a cavity varies as the beam loading changes 1 . The beam loading changes the cavity input impedance. Therefore, the input coupler must be adjusted to maintain a good impedance match. Measurements have been made to determine the coupler loop position depth of penetration with respect to various loading conditions in a storage ring single-cell cavity. An input coupler was inserted into the storage ring single-cell cavity at various loaded Q points, then matched. The relationship between the coupling coe cient, , and the gap width, where gap width is the separation

467

Rotating electrical machines. Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles)  

E-Print Network (OSTI)

Applies to d.c. machines and to a.c. synchronous and induction machines. The principles can be applied to other types of machines such as rotary converters, a.c. commutator motors and single-phase induction motors for which other methods of determining losses are used.

International Electrotechnical Commission. Geneva

1972-01-01T23:59:59.000Z

468

Surface Heat Flux Variations across the Kuroshio Extension as Observed by Surface Flux Buoys  

Science Conference Proceedings (OSTI)

Wintertime sea surface heat flux variability across the Kuroshio Extension (KE) front is analyzed using data from the Kuroshio Extension Observatory (KEO) buoy in the Kuroshio recirculation gyre south of the KE front and from the Japan Agency for ...

Masanori Konda; Hiroshi Ichikawa; Hiroyuki Tomita; Meghan F. Cronin

2010-10-01T23:59:59.000Z

469

The effect of nonuniform axial heat flux distribution on the critical heat flux  

E-Print Network (OSTI)

A systematic experimental and analytic investigation of the effect of nonuniform axial heat flux distribution on critical heat rilux was performed with water in the quality condition. Utilizing a model which ascribes the ...

Todreas, Neil E.

1965-01-01T23:59:59.000Z

470

Method and apparatus for determining vertical heat flux of geothermal field  

DOE Patents (OSTI)

A method and apparatus for determining vertical heat flux of a geothermal field, and mapping the entire field, is based upon an elongated heat-flux transducer (10) comprised of a length of tubing (12) of relatively low thermal conductivity with a thermopile (20) inside for measuring the thermal gradient between the ends of the transducer after it has been positioned in a borehole for a period sufficient for the tube to reach thermal equilibrium. The transducer is thermally coupled to the surrounding earth by a fluid annulus, preferably water or mud. A second transducer comprised of a length of tubing of relatively high thermal conductivity is used for a second thermal gradient measurement. The ratio of the first measurement to the second is then used to determine the earth's thermal conductivity, k.sub..infin., from a precalculated graph, and using the value of thermal conductivity thus determined, then determining the vertical earth temperature gradient, b, from predetermined steady state heat balance equations which relate the undisturbed vertical earth temperature distributions at some distance from the borehole and earth thermal conductivity to the temperature gradients in the transducers and their thermal conductivity. The product of the earth's thermal conductivity, k.sub..infin., and the earth's undisturbed vertical temperature gradient, b, then determines the earth's vertical heat flux. The process can be repeated many times for boreholes of a geothermal field to map vertical heat flux.

Poppendiek, Heinz F. (LaJolla, CA)

1982-01-01T23:59:59.000Z

471

Liner velocity, current, and symmetry measurements on the 32 MEGAMP flux compression generator experiment ALT-1  

SciTech Connect

A flux compression generator pulse power system, designed, built, and fielded by a Russian team at the All Russian Scientific Research Institute of Experimental Physics (VNIIEF), was used to successfully drive an aluminum liner to velocities greater than 12 km/sec. The experiment objective was to demonstrate performance of a precision liner implosion at an Atlas current of 30 MA or greater. Diagnostics to measure liner performance were an essential part of the experiment. An experimental team from Los Alamos National Laboratory (LANL) provided a suite of diagnostics to measure liner performance. Three diagnostics were fielded: (1) A velocity interferometer (VISAR) to continuously measure the liner innersurface velocity throughout the entire range of travel, (2) Two Faraday rotation devices to measure liner current during the implosion, and, (3) Sixteen fiber optic impact pins to record liner impact time and provide axial and azimuthal symmetry information. All diagnostics performed very well. Major results are maximum current: 32.3 MA, velocity at impact: greater than 12 km/sec, symmetry: the impact pins indicated that the liner was smooth, solid, and axially symmetric upon arrival at the diagnostic package. The LANL team fabricated, installed, and recorded the three diagnostics presented here. All necessary equipment was brought to the site in Russia. The VNIIEF team fielded other diagnostics to measure machine performance. Results of machine diagnostics are reported in other presentations.

Anderson, B. G. (Brodie G.); Rodriguez, G. (George); Stokes, J. L. (John L.); Tabaka, L. J. (Leonard J.); Clark, D. A. (David A.)

2001-01-01T23:59:59.000Z

472

SU(5) and SO(10) models from F-theory with natural Yukawa couplings  

SciTech Connect

We construct the SU(5) and SO(10) models from F-theory. Turning on the U(1) fluxes, we can break the SU(5) gauge symmetry down to the standard model (SM) gauge symmetry, and break the SO(10) gauge symmetry down to the SU(3){sub C}xSU(2){sub L}xSU(2){sub R}xU(1){sub B-L} gauge symmetry. In particular, all the SM fermion Yukawa couplings preserve the enhanced U(1){sub a}xU(1){sub b} gauge or global symmetries at the triple intersections of the SM fermion and Higgs curves. And the SM fermion masses and mixings can be generated in the presence of background fluxes. In our models, the doublet-triplet splitting problem can be solved naturally. The additional vectorlike particles can obtain heavy masses via the instanton effects or Higgs mechanism and then decouple at the high scale. The SM gauge couplings at the string scale, which are split due to the U(1) flux effects, can be explained by considering heavy threshold corrections from the extra vectorlike particles. Moreover, in the SU(5) model, we have the Yukawa coupling unification for the bottom quark and tau lepton. In the SO(10) models, we have the Yukawa coupling unification for the top and bottom quarks, and the Yukawa coupling unification for the tau lepton and tau neutrino.

Li Tianjun [Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 (China) and George P. and Cynthia W. Mitchell Institute for Fundamental Physics, Texas A and M University, College Station, Texas 77843 (United States)

2010-03-15T23:59:59.000Z

473

HIGH FLUX ISOTOPE REACTOR PRELIMINARY DESIGN STUDY  

SciTech Connect

A comparison of possible types of research reactors for the production of transplutonium elements and other isotopes indicates that a flux-trap reactor consisting of a beryllium-reflecteds light-water-cooled annular fuel region surrounding a light-water island provides the required thermal neutron fluxes at minimum cost. The preliminary desigu of such a reactor was carried out on the basis of a parametric study of the effect of dimensions of the island and fuel regions heat removal rates, and fuel loading on the achievable thermal neutmn fluxes in the island and reflector. The results indicate that a 12- to 14-cm- diam. island provides the maximum flux for a given power density. This is in good agreement with the US8R critical experiments. Heat removal calculations indicate that average power densities up to 3.9 Mw/liter are achievable with H/ sub 2/O-cooled, platetype fuel elements if the system is pressurized to 650 psi to prevent surface boiling. On this basis, 100 Mw of heat can be removed from a 14-cm-ID x 36-cm-OD x 30.5-cm-long fuel regions resulting in a thermal neutron flux of 3 x 10/sup 15/ in the island after insertion of 100 g of Cm/sup 244/ or equivalent. The resulting production of Cf/sup 252/ amounts to 65 mg for a 1 1/2- year irradiation. Operation of the reactor at the more conservative level of 67 Mw, providing an irradiation flux of 2 x 10/sup 15/ in the islands will result in the production of 35 mg of Cf/sup 252/ per 18 months from 100 g of Cm/sup 244/. A development program is proposed to answer the question of the feasibility of the higher power operation. In addition to the central irradiation facility for heavyelement productions the HFIR contains ten hydraulic rabbit tubes passing through the beryllium reflector for isotope production and four beam holes for basic research, Preliminary estimates indicate that the cost of the facility, designed for an operating power level of 100 Mw, will be approximately 2 million. (auth)

Lane, J.A.; Cheverton, R.D.; Claiborne, G.C.; Cole, T.E.; Gambill, W.R.; Gill, J.P.; Hilvety, N.; McWherther, J.R.; Vroom, D.W.

1959-03-20T23:59:59.000Z

474

Switching a magnetic vortex by interlayer coupling in epitaxially grown Co/Cu/Py/Cu(001) trilayer disks  

SciTech Connect

Epitaxial Py/Cu/Co/Cu(001) trilayers were patterned into micron sized disks and imaged using element-specific photoemission electron microscopy. By varying the Cu spacer layer thickness, we study how the coupling between the two magnetic layers influences the formation of magnetic vortex states. We find that while the Py and Co disks form magnetic vortex domains when the interlayer coupling is ferromagnetic, the magnetic vortex domains of the Py and Co disks break into anti-parallel aligned multidomains when the interlayer coupling is antiferromagnetic. We explain this result in terms of magnetic flux closure between the Py and Co layers for the antiferromagnetic coupling case.

Wu, J.; Carlton, D.; Oelker, E.; Park, J. S.; Jin, E.; Arenholz, E.; Scholl, A.; Hwang, C.; Bokor, J.; Qiu, Z Q

2010-07-16T23:59:59.000Z

475

Evaluating the Carbon Cycle of a Coupled Atmosphere-Biosphere Model  

SciTech Connect

We investigate how well a coupled biosphere-atmosphere model, CCM3-IBIS, can simulate the functioning of the terrestrial biosphere and the carbon cycling through it. The simulated climate is compared to observations, while the vegetation cover and the carbon cycle are compared to an offline version of the biosphere model IBIS forced with observed climatic variables. The simulated climate presents some local biases that strongly affect the vegetation (e.g., a misrepresentation of the African monsoon). Compared to the offline model, the coupled model simulates well the globally averaged carbon fluxes and vegetation pools. The zonal mean carbon fluxes and the zonal mean seasonal cycle are also well represented except between 0{sup o} and 20{sup o}N due to the misrepresentation of the African monsoon. These results suggest that, despite regional biases in climate and ecosystem simulations, this coupled atmosphere-biosphere model can be used to explore geographic and temporal variations in the global carbon cycle.

Delire, C; Foley, J A; Thompson, S

2002-08-21T23:59:59.000Z

476

Mid States Tool and Machine Inc | Open Energy Information  

Open Energy Info (EERE)

and Machine Inc and Machine Inc Jump to: navigation, search Name Mid States Tool and Machine Inc Place decatur, Indiana Zip 46733 Sector Services Product Provides engineering and manufacturing, testing, delivery, and post-installation on-site services. Coordinates 33.23476°, -97.585979° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.23476,"lon":-97.585979,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

477

Manz Intech Machines Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Intech Machines Co Ltd Intech Machines Co Ltd Jump to: navigation, search Name Manz Intech Machines Co Ltd Place Taoyuan, Taiwan Zip 320 Sector Solar Product Taiwan-based manufacturer producing wet-chemical process equipment for the LCD and PCB industries and for thin-film solar PV production. Coordinates 25.001909°, 121.304977° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":25.001909,"lon":121.304977,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

478

Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines  

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

Silicon Micromachined Dimensional Calibration Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines 1 Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines 2 Sandia National Laboratories PO Box 5800 Albuquerque, NM 87185 USA Hy D. Tran, PhD, PE Phone: (505)844-5417 Fax: (505)844-4372 hdtran@sandia.gov AFFIRMATION: I affirm that all information submitted as a part of, or supplemental to, this entry is a fair and accurate representation of this product. ___________________________________ Hy D. Tran Not a joint entry. Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines The silicon hybrid artifact is an anisotropic-etched silicon standard that is used as a calibration reference artifact to calibrate vision-based and

479

International Business Machines Corp IBM | Open Energy Information  

Open Energy Info (EERE)

Machines Corp IBM Machines Corp IBM Jump to: navigation, search Name International Business Machines Corp (IBM) Place Armonk, New York Zip 10504 Sector Services Product IBM is a technology company supplying hardware, software and Information Technology services. Coordinates 41.119417°, -73.708388° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.119417,"lon":-73.708388,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

480

Be a Lean, Mean, Green Eating Machine | Department of Energy  

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

Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine January 31, 2012 - 2:53pm Addthis Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs Like most Americans, I watched the State of the Union to hear President Obama outline his goals for the year ahead, to understand his energy outlook and plans, and of course, to see what Michelle would be wearing (a stunning royal blue, of course). When listening to the President highlight his administration's clean energy initiatives, I couldn't help but remember the First Family's goals to reduce childhood obesity in America. By no surprise, the link between nationwide health improvement and energy efficiency efforts is strong. By reducing our demand for processed and imported foods, we can improve the

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481

DOE - Office of Legacy Management -- Etna Machine Co - OH 28  

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

Etna Machine Co - OH 28 Etna Machine Co - OH 28 FUSRAP Considered Sites Site: Etna Machine Co. (OH.28 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 3400 Maplewood Avenue , Toledo , Ohio OH.28-1 Evaluation Year: 1987 OH.28-1 Site Operations: Conducted swaging experiment to reduce the diameter of a hot-rolled uranium metal rod Research/Development and Testing on Uranium Metal in December 1950 (lasted only two days). OH.28-1 Site Disposition: Eliminated - Limited scope of activities performed there - Potential for residual radioactive contamination is considered remote OH.28-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium OH.28-1 Radiological Survey(s): None Indicated

482

Be a Lean, Mean, Green Eating Machine | Department of Energy  

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

Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine Be a Lean, Mean, Green Eating Machine January 31, 2012 - 2:53pm Addthis Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs Like most Americans, I watched the State of the Union to hear President Obama outline his goals for the year ahead, to understand his energy outlook and plans, and of course, to see what Michelle would be wearing (a stunning royal blue, of course). When listening to the President highlight his administration's clean energy initiatives, I couldn't help but remember the First Family's goals to reduce childhood obesity in America. By no surprise, the link between nationwide health improvement and energy efficiency efforts is strong. By reducing our demand for processed and imported foods, we can improve the

483

Development of precision machining and inspection technology for structural ceramics  

SciTech Connect

Finish machining operations contribute the majority of the costs associated with fabricating high quality ceramic products. These components are typically used in harsh environments such as diesel engines, the defense industry, and automotive applications. The required finishing operations involve a variety of technology areas including process controls, process analysis, product certification, etc. and are not limited only to component grinding methods. The broad range of manufacturing problem solving expertise available in Oak Ridge provided resources that were far beyond what is available to the Coors manufacturing sites. Coors contributed equipment, such as the computer controls and part handling mechanisms associated with a state-of-the-art inspection machine plus operation-specific experience base. In addition, addressing these challenging tasks enabled Oak Ridge personnel to maintain familarity with rapidly advancing technologies, such as those associated with machine vision equipment, process monitoring techniques, and computer control systems.

Barkman, W.E.

1997-03-06T23:59:59.000Z

484

Electric Discharge Machining (EDM) Projects (4584), 4/11/2012  

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

Electric Discharge Machining (EDM) Projects (4584) Electric Discharge Machining (EDM) Projects (4584) Program or Field Office: Y -12 Site Office Location(s) (Citv/Countv/State): Oak Ridge, Anderson County, Tennessee Proposed Action Description: Submit by E-mail The proposed action is to installation of oil submerged Electric Discharge Machining (EDM) for development and production use. Categorical Exclusion(s) Applied: 81.31 -Installation or relocation of machinery and equipment For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, including the full text of each categorical exclusion, see Subpart D of 10 CFR Part 1021. Regulatory Requirements in 10 CFR 1021.410(b): (See full text in regulation) [{Jrhe proposal fits within a class of actions that is listed in Appendix A orB to 10 CFR Part 1021, Subpart D.

485

Holographic Labeling And Reading Machine For Authentication And Security Appications  

DOE Patents (OSTI)

A holographic security label and automated reading machine for marking and subsequently authenticating any object such as an identification badge, a pass, a ticket, a manufactured part, or a package is described. The security label is extremely difficult to copy or even to read by unauthorized persons. The system comprises a holographic security label that has been created with a coded reference wave, whose specification can be kept secret. The label contains information that can be extracted only with the coded reference wave, which is derived from a holographic key, which restricts access of the information to only the possessor of the key. A reading machine accesses the information contained in the label and compares it with data stored in the machine through the application of a joint transform correlator, which is also equipped with a reference hologram that adds additional security to the procedure.

Weber, David C. (Rancho Santa Margarita, CA); Trolinger, James D. (Costa Mesa, CA)

1999-07-06T23:59:59.000Z

486

Perspectives on Geospace Plasma Coupling  

Science Conference Proceedings (OSTI)

There are a large variety of fascinating and instructive aspects to examining the coupling of mass and energy from the solar wind into the Earth's magnetosphere. Past research has suggested that magnetic reconnection (in a fluid sense) on the day-side magnetopause plays the key role in controlling the energy coupling. However, both linear and nonlinear coupling processes involving kinetic effects have been suggested through various types of innovative data analysis. Analysis and modeling results have also indicated a prominent role for multi-scale processes of plasma coupling. Examples include evidence of control by solar wind turbulence in the coupling sequence and localized (finite gyroradius) effects in dayside plasma transport. In this paper we describe several solar wind-magnetosphere coupling scenarios. We particularly emphasize the study of solar wind driving of magnetospheric substorm, and related geomagnetic disturbances.

Baker, Daniel N. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303-7814 (United States)

2011-01-04T23:59:59.000Z

487

Surface fluxes important to cloud development  

SciTech Connect

To address some of the issues in scaling and averaging of measurements, collaborative field campaigns were conducted in June 1991 and 1992 by the DOE laboratories funded under the ARM program. We selected a site in Boardman, OR, with two distinct regions where the sensible and latent heat fluxes would differ sharply and where each region was sufficiently extensive for full development of boundary layers and for utilizing aircraft-mounted instrument systems (Barnes et al. 1992, Doran et al. 1992). Measurements were clustered along a 16-km transect across adjoining irrigated farmland and semi-arid rangeland regions that allowed the collaborating teams to conduct a variety of studies relating to overall goals. The Los Alamos team efforts were focused on assessing the effects of different surface characteristics on fluxes of heat and water vapor.

Barnes, F.J.; Porch, W. [Los Alamos National Lab., NM (United States); Kunkel, K.E. [Illinois State Water Survey, Champaign, IL (United States)

1993-07-01T23:59:59.000Z

488

Surface fluxes important to cloud development  

SciTech Connect

To address some of the issues in scaling and averaging of measurements, collaborative field campaigns were conducted in June 1991 and 1992 by the DOE laboratories funded under the ARM program. We selected a site in Boardman, OR, with two distinct regions where the sensible and latent heat fluxes would differ sharply and where each region was sufficiently extensive for full development of boundary layers and for utilizing aircraft-mounted instrument systems (Barnes et al. 1992, Doran et al. 1992). Measurements were clustered along a 16-km transect across adjoining irrigated farmland and semi-arid rangeland regions that allowed the collaborating teams to conduct a variety of studies relating to overall goals. The Los Alamos team efforts were focused on assessing the effects of different surface characteristics on fluxes of heat and water vapor.

Barnes, F.J.; Porch, W. (Los Alamos National Lab., NM (United States)); Kunkel, K.E. (Illinois State Water Survey, Champaign, IL (United States))

1993-01-01T23:59:59.000Z

489

MAGNETIC FLUX CONSERVATION IN THE HELIOSHEATH  

SciTech Connect

Voyager 1(V1) and Voyager 2(V2) have observed heliosheath plasma since 2005 December and 2007 August, respectively. The observed speed profiles are very different at the two spacecrafts. Speeds at V1 decreased to zero in 2010 while the average speed at V2 is a constant 150 km s{sup -1} with the direction rotating tailward. The magnetic flux is expected to be constant in these heliosheath flows. We show that the flux is constant at V2 but decreases by an order of magnitude at V1, even after accounting for divergence of the flows and changes in the solar field. If reconnection were responsible for this decrease, the magnetic field would lose 70% of its free energy to reconnection and the energy density released would be 0.6 eV cm{sup -3}.

Richardson, J. D. [Kavli Center for Astrophysics and Space Science Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Burlaga, L. F. [NASA Goddard Space Flight Center, Code 673, Greenbelt, MD 20771 (United States); Decker, R. B. [Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723 (United States); Drake, J. F. [Department of Physics and Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (United States); Ness, N. F. [Institute for Astrophysics and Computational Sciences, Catholic University of America, Washington, DC 20064 (United States); Opher, M., E-mail: jdr@space.mit.edu, E-mail: lburlagahsp@verizon.net, E-mail: robert.decker@jhuapl.edu, E-mail: drake@umd.edu, E-mail: nfnudel@yahoo.com, E-mail: mopher@bu.edu [Astronomy Department, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 (United States)

2013-01-01T23:59:59.000Z

490

Plasma conductivity at finite coupling  

E-Print Network (OSTI)

By taking into account the full order(\\alpha'^3) type IIB string theory corrections to the supergravity action, we compute the leading finite 't Hooft coupling order(\\lambda^{-3/2}) corrections to the conductivity of strongly-coupled SU(N) {\\cal {N}}=4 supersymmetric Yang-Mills plasma in the large N limit. We find that the conductivity is enhanced by the corrections, in agreement with the trend expected from previous perturbative weak-coupling computations.

Hassanain, Babiker

2011-01-01T23:59:59.000Z

491

Plasma conductivity at finite coupling  

E-Print Network (OSTI)

By taking into account the full order(\\alpha'^3) type IIB string theory corrections to the supergravity action, we compute the leading finite 't Hooft coupling order(\\lambda^{-3/2}) corrections to the conductivity of strongly-coupled SU(N) {\\cal {N}}=4 supersymmetric Yang-Mills plasma in the large N limit. We find that the conductivity is enhanced by the corrections, in agreement with the trend expected from previous perturbative weak-coupling computations.

Babiker Hassanain; Martin Schvellinger

2011-08-31T23:59:59.000Z

492

The Cosmic Ray Muon Flux at WIPP  

E-Print Network (OSTI)

In this work a measurement of the muon intensity at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, NM, USA is presented. WIPP is a salt mine with a depth of 655 m. The vertical muon flux was measured with a two panels scintillator coincidence setup to Phi_{vert}=3.10(+0.05/-0.07)*10^(-7)s^(-1)cm^(-2)sr^(-1).

E. -I. Esch; T. J. Bowles; A. Hime; A. Pichlmaier; R. Reifarth; H. Wollnik

2004-08-25T23:59:59.000Z

493

The Cosmic Ray Muon Flux at WIPP  

E-Print Network (OSTI)

In this work a measurement of the muon intensity at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, NM, USA is presented. WIPP is a salt mine with a depth of 655 m. The vertical muon flux was measured with a two panels scintillator coincidence setup to ?vert = (3.10 +0.05 ?0.07) 10?7 s ?1 cm ?2 sr ?1.

E. -i. Esch A; T. J. Bowles A; A. Hime A; A. Pichlmaier A; R. Reifarth A; H. Wollnik B

2004-01-01T23:59:59.000Z

494

The Cosmic Ray Muon Flux at WIPP  

E-Print Network (OSTI)

In this work a measurement of the muon intensity at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, NM, USA is presented. WIPP is a salt mine with a depth of 655 m. The vertical muon flux was measured with a two panels scintillator coincidence setup to Phi_{vert}=3.10(+0.05/-0.07)*10^(-7)s^(-1)cm^(-2)sr^(-1).

Esch, E I; Hime, A; Pichlmaier, A; Reifarth, R; Wollnik, H

2005-01-01T23:59:59.000Z

495

Heat conduction in 2D strongly-coupled dusty plasmas  

E-Print Network (OSTI)

We perform non-equilibrium simulations to study heat conduction in two-dimensional strongly coupled dusty plasmas. Temperature gradients are established by heating one part of the otherwise equilibrium system to a higher temperature. Heat conductivity is measured directly from the stationary temperature profile and heat flux. Particular attention is paid to the influence of damping effect on the heat conduction. It is found that the heat conductivity increases with the decrease of the damping rate, while its magnitude confirms previous experimental measurement.

Hou, Lu-Jing

2008-01-01T23:59:59.000Z

496

VISUALS: Diffusion couple animation - TMS  

Science Conference Proceedings (OSTI)

Sep 25, 2007 ... This Quicktime animation of a diffusion couple shows side-by-side views of two different atomic species - red and green - diffusing across a flat ...

497

Coupling light to periodic nanostructures.  

E-Print Network (OSTI)

??This thesis describes coupling of light to periodic structures. A material is patterned with a regular pattern on a length scale comparable to the wavelength… (more)

Driessen, Eduard Frans Clemens

2009-01-01T23:59:59.000Z

498

Machine-learning algorithm aims to accelerate materials discovery | Argonne  

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

Science Science Computing, Environment & Life Sciences Energy Engineering & Systems Analysis Photon Sciences Physical Sciences & Engineering Energy Frontier Research Centers Science Highlights Postdoctoral Researchers Machine-learning algorithm aims to accelerate materials discovery July 16, 2013 Tweet EmailPrint A research team led by Argonne Leadership Computing Facility computational chemist Anatole von Lilienfeld is developing an algorithm that combines quantum chemistry with machine learning (artificial intelligence) to enable atomistic simulations that predict the properties of new materials with unprecedented speed. From innovations in medicine to novel materials for next-generation batteries, this approach could greatly accelerate the pace of materials discovery, with high-performance

499

Gelcasting compositions having improved drying characteristics and machinability  

DOE Patents (OSTI)

A gelcasting composition has improved drying behavior, machinability and shelf life in the dried and unfired state. The composition includes an inorganic powder, solvent, monomer system soluble in the solvent, an initiator system for polymerizing the monomer system, and a plasticizer soluble in the solvent. Dispersants and other processing aides to control slurry properties can be added. The plasticizer imparts an ability to dry thick section parts, to store samples in the dried state without cracking under conditions of varying relative humidity, and to machine dry gelcast parts without cracking or chipping. A method of making gelcast parts is also disclosed.

Janney, Mark A. (Knoxville, TN); Walls, Claudia A. H. (Oak Ridge, TN)

2001-01-01T23:59:59.000Z

500

Aspects of surface generation in orthogonal ultraprecision machining  

SciTech Connect

The depth of the plastically deformed layer at the workpiece surface which resulted in the orthogonal ultraprecision machining of Cu over the range of uncut chip thicknesses of 0.01-10 {mu}m was investigated. Two tools with the same nominal geometry but with differing edge geometries were used to machine both Te-Cu and fine grain Cu. Tool edge geometries were characterized by atomic force microscopy, taking into account the AFM cantilever tip radius. Magnitudes of the measured depths appear to be consistent with values reported in the literature and those arrived at by simple analyses.

Lucca, D.A.; Seo, Y.W. [Oklahoma State Univ., Stillwater, OK (United States). School of Mechanical and Aerospace Engineering; Rhorer, R.L. [Los Alamos National Lab., NM (United States)

1994-10-01T23:59:59.000Z