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Sample records for rpm configuration inline

  1. A novel electron gun for inline MRI-linac configurations

    SciTech Connect (OSTI)

    Constantin, Drago? E. Fahrig, Rebecca; Holloway, Lois; Keall, Paul J.

    2014-02-15

    Purpose: This work introduces a new electron gun geometry capable of robust functioning in the presence of a high strength external magnetic field for axisymmetric magnetic resonance imaging (MRI)-linac configurations. This allows an inline MRI-linac to operate without the need to isolate the linear accelerator (linac) using a magnetic shield. This MRI-linac integration approach not only leaves the magnet homogeneity unchanged but also provides the linac flexibility to move along the magnet axis of symmetry if the source to target distance needs to be adjusted. Methods: Simple electron gun geometry modifications of a Varian 600C electron gun are considered and solved in the presence of an external magnetic field in order to determine a set of design principles for the new geometry. Based on these results, a new gun geometry is proposed and optimized in the fringe field of a 0.5 T open bore MRI magnet (GE Signa SP). A computer model for the 6 MeV Varian 600C linac is used to determine the capture efficiency of the new electron gun-linac system in the presence of the fringe field of the same MRI scanner. The behavior of the new electron gun plus the linac system is also studied in the fringe fields of two other magnets, a 1.0 T prototype open bore magnet and a 1.5 T GE Conquest scanner. Results: Simple geometrical modifications of the original electron gun geometry do not provide feasible solutions. However, these tests show that a smaller transverse cathode diameter with a flat surface and a slightly larger anode diameter could alleviate the current loss due to beam interactions with the anode in the presence of magnetic fields. Based on these findings, an initial geometry resembling a parallel plate capacitor with a hole in the anode is proposed. The optimization procedure finds a cathode-anode distance of 5 mm, a focusing electrode angle of 5°, and an anode drift tube length of 17.1 mm. Also, the linac can be displaced with ±15 cm along the axis of the 0.5 T magnet without capture efficiency reduction below the experimental value in zero field. In this range of linac displacements, the electron beam generated by the new gun geometry is more effectively injected into the linac in the presence of an external magnetic field, resulting in approximately 20% increase of the target current compared to the original gun geometry behavior at zero field. The new gun geometry can generate and accelerate electron beams in external magnetic fields without current loss for fields higher than 0.11 T. The new electron-gun geometry is robust enough to function in the fringe fields of the other two magnets with a target current loss of no more than 16% with respect to the current obtained with no external magnetic fields. Conclusions: In this work, a specially designed electron gun was presented which can operate in the presence of axisymmetric strong magnetic fringe fields of MRI magnets. Computer simulations show that the electron gun can produce high quality beams which can be injected into a straight through linac such as Varian 600C and accelerated with more efficiency in the presence of the external magnetic fields. Also, the new configuration allows linac displacements along the magnet axis in a range equal to the diameter of the imaging spherical volume of the magnet under consideration. The new electron gun-linac system can function in the fringe field of a MRI magnet if the field strength at the cathode position is higher than 0.11 T. The capture efficiency of the linac depends on the magnetic field strength and the field gradient. The higher the gradient the better the capture efficiency. The capture efficiency does not degrade more than 16%.

  2. To Inline or Not to Inline? Enhanced Inlining Decisions

    E-Print Network [OSTI]

    Amaral, José Nelson

    @cs.ualberta.ca Abstract| The decision to inline a procedure in the Open Research Compiler (ORC) was based on a temperature introduce two new heuristics to enhance the ORC inlining heuristics: adaptation and cycle density called infrequently. We implemented our improved heuristics in the ORC and tested them for the Intel

  3. Configuration

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

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  4. Configuration

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

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  5. Configuration

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

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  6. Configuration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibilitydefault ChangesORNL'sConfiguration

  7. Drill Press Speed Chart Recommended operating speeds (RPM)

    E-Print Network [OSTI]

    Quigg, Chris

    Drill Press Speed Chart Recommended operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits 1/16" - 3/16" 1/4" - 3/8" 7/16"- 5/8" 11 1000 600 350 Lubricate drill with oil when cutting steel 1/8" or thicker. Use center punch on all holes

  8. Microsoft PowerPoint -Risk_Portfolio_Manager(RPM)_overview_Under...

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

    PowerPoint - RiskPortfolioManager(RPM)overviewUnderSecDOE2011V4 Final 3-22-2011.ppt Read-Only Compatibili Microsoft PowerPoint - RiskPortfolioManager(RPM)overviewUn...

  9. In-line thermoelectric module

    DOE Patents [OSTI]

    Pento, Robert (Algonquin, IL); Marks, James E. (Glenville, NY); Staffanson, Clifford D. (S. Glens Falls, NY)

    2000-01-01

    A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions may be perpendicular to the direction of current flow through the module.

  10. RPM-1 suppressors Act in synapse formation and axon termination in Caenorhabditis elegans

    E-Print Network [OSTI]

    Trujillo, Gloriana Victoria

    2010-01-01

    Variant Protein in Axon Termination and Synaptogenesis. St.Protein Acts in Axon Termination and Synaptogenesis in C.RPM-1 Regulates Axon Termination and Synaptogenesis through

  11. Contents of Lecture 6 Inline functions

    E-Print Network [OSTI]

    (&b); return b + 1; } int c; int main(void) { c = g(); } Jonas Skeppstedt (js@cs.lth.se) Lecture 6 2014 2 / 57; } int c; int main(void) { c = g(); } Jonas Skeppstedt (js@cs.lth.se) Lecture 6 2014 3 / 57 #12;Using an inline function inline void f(int* a) { *a = 12; } int g(void) { int b; f(&b); return b + 1; } int c; int

  12. Kinetics and Equilibrium of Gas Adsorption on RPM1-Co and Cu-BTC

    E-Print Network [OSTI]

    Li, Jing

    Kinetics and Equilibrium of Gas Adsorption on RPM1-Co and Cu-BTC Metal-Organic Frameworks and equilibrium adsorption measurements for two gases, CF4 and Ar, on RPM1-Co and Cu-BTC metal-organic framework.597) on both adsorbents. The results show that both gases behave differently on Cu-BTC from the way they do

  13. RPM Sections - RPM-2 RPM-2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts on Global TechnologyProceeding SignPriceRL's3,16,Lawrence

  14. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, Marcus B. (Kingston, TN); Thompson, Cyril V. (Knoxville, TN)

    1998-01-01

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds.

  15. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, M.B.; Thompson, C.V.

    1998-07-14

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds. 3 figs.

  16. IEMDC IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal

    2004-10-01

    This report contains the final project summary and deliverables required by the award for the development of an In-line Electric Motor Driven Compressor (IEMDC). Extensive work was undertaken during the course of the project to develop the motor and the compressor section of the IEMDC unit. Multiple design iterations were performed to design an electric motor for operation in a natural gas environment and to successfully integrate the motor with a compressor. During the project execution, many challenges were successfully overcome in order to achieve the project goals and to maintain the system design integrity. Some of the challenges included limiting the magnitude of the compressor aerodynamic loading for appropriate sizing of the magnetic bearings, achieving a compact motor rotor size to meet the rotor dynamic requirements of API standards, devising a motor cooling scheme using high pressure natural gas, minimizing the impact of cooling on system efficiency, and balancing the system thrust loads for the magnetic thrust bearing. Design methods that were used on the project included validated state-of-the-art techniques such as finite element analysis and computational fluid dynamics along with the combined expertise of both Curtiss-Wright Electro-Mechanical Corporation and Dresser-Rand Company. One of the most significant areas of work undertaken on the project was the development of the unit configuration for the system. Determining the configuration of the unit was a significant step in achieving integration of the electric motor into a totally enclosed compression system. Product review of the IEMDC unit configuration was performed during the course of the development process; this led to an alternate design configuration. The alternate configuration is a modular design with the electric motor and compressor section each being primarily contained in its own pressure containing case. This new concept resolved the previous conflict between the aerodynamic flow passage requirements and electric motor requirements for support and utilities by bounding the flowpath within the compressor section. However most importantly, the benefits delivered by the new design remained the same as those proposed by the goals of the project. In addition, this alternate configuration resulted in the achievement of a few additional advantages over the original concept such as easier maintenance, operation, and installation. Interaction and feedback solicited from target clients regarding the unit configuration supports the fact that the design addresses industry issues regarding accessibility, maintainability, preferred operating practice, and increased reliability.

  17. Inline motion in flapping foils for improved force vectoring performance

    E-Print Network [OSTI]

    Izraelevitz, Jacob (Jacob Samuel)

    2013-01-01

    In this thesis, I study the effect of adding in-line oscillation to heaving and pitching foils using a power downstroke. I show that far from being a limitation imposed by the muscular structure of certain animals, in-line ...

  18. Renormalization Group Flows, Cycles, andinline'>c-Theorem Folklore Curtright, Thomas L.; Jin, Xiang; Zachos, Cosmas K. Not Available American Physical Society None...

  19. Module Configuration

    DOE Patents [OSTI]

    Oweis, Salah (Ellicott City, MD); D'Ussel, Louis (Bordeaux, FR); Chagnon, Guy (Cockeysville, MD); Zuhowski, Michael (Annapolis, MD); Sack, Tim (Cockeysville, MD); Laucournet, Gaullume (Paris, FR); Jackson, Edward J. (Taneytown, MD)

    2002-06-04

    A stand alone battery module including: (a) a mechanical configuration; (b) a thermal management configuration; (c) an electrical connection configuration; and (d) an electronics configuration. Such a module is fully interchangeable in a battery pack assembly, mechanically, from the thermal management point of view, and electrically. With the same hardware, the module can accommodate different cell sizes and, therefore, can easily have different capacities. The module structure is designed to accommodate the electronics monitoring, protection, and printed wiring assembly boards (PWAs), as well as to allow airflow through the module. A plurality of modules may easily be connected together to form a battery pack. The parts of the module are designed to facilitate their manufacture and assembly.

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

    DOE Patents [OSTI]

    Hoff, Brian (East Peoria, IL)

    2008-08-05

    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.

  1. Inline Measurements: A Native Measurement Technique for IPv6 Networks

    E-Print Network [OSTI]

    Sventek, Joe

    as the tradi- tionally best-effort Internet Protocol is increasingly used to transport aggregated, time-critical categories: active and passive. This paper introduces another complementary technique called `inline measure of reliable transport. Index Terms ­ active, passive, measurement, monitoring, performance, quality of service

  2. Function Inlining in Modelica Models Alessandro V. Papadopoulos

    E-Print Network [OSTI]

    Como, Giacomo

    Function Inlining in Modelica Models Alessandro V. Papadopoulos Martina Maggio Francesco Casella.akesson@control.lth.se). Modelon AB, Lund, Sweden (e-mail: johan.akesson@modelon.com). Abstract: The equation-based Modelica in the paper go well beyond the state of the art in commercial and open- source Modelica tools. Keywords

  3. In-Line Crack and Stress Detection in Silicon Solar Cells Using Resonance Ultrasonic Vibrations

    SciTech Connect (OSTI)

    Ostapenko, Sergei

    2013-04-03

    Statement of Problem and Objectives. Wafer breakage in automated solar cell production lines is identified as a major technical problem and a barrier for further cost reduction of silicon solar module manufacturing. To the best of our knowledge, there are no commercial systems addressing critical needs for in-line inspection of the mechanical quality of solar wafers and cells. The principal objective of the SBIR program is to validate through experiments and computer modeling the applicability of the Resonance Ultrasonic Vibrations system, which ultimately can be used as a real-time in-line manufacturing quality control tool for fast detection of mechanically unstable silicon solar cells caused by cracks. The specific objective of Phase II is to move the technology of in-line crack detection from the laboratory level to commercial demonstration through development of a system prototype. The fragility of silicon wafers possessing low mechanical strength is attributed to peripheral and bulk millimeter-length cracks. The research program is based on feasibility results obtained during Phase I, which established that: (i) the Resonance Ultrasonic Vibrations method is applicable to as-cut, processed wafers and finished cells; (ii) the method sensitivity depends on the specific processing step; it is highest in as-cut wafers and lowest in wafers with metallization pattern and grid contacts; (iii) the system is capable of matching the 2.0 seconds per wafer throughput rate of state-of-art solar cell production lines; (iv) finite element modeling provides vibration mode analysis along with peak shift versus crack length and crack location dependence; (v) a high 91% crack rejection rate was confirmed through experimentation and statistical analysis. The Phase II project has the following specific tasks: (i) specify optimal configurations of the in-line system�¢����s component hardware and software; (ii) develop and justify a system prototype that meets major specifications for an in-line crack detection unit, such as high throughput rate, high level of stability, reproducibility of data acquisition and analysis, and high sensitivity with respect to crack length and crack location; (iii) design a system platform that allows easy integration within and adaptation to various solar cell belt-type production lines; (iv) develop a testing protocol providing quality certification of the production-grade system. Commercial Application of the proposed activity consists of bringing to the solar market a new high-tech product based on an innovative solution and patented methodology to contribute to cost reduction of silicon solar module production. The solar industry, with crystalline silicon as a dominant segment, shows outstanding performance, with approximately 25% yearly growth during the last years. Despite a slowdown with only 5.6 GW installations in 2009, solar module production for the 2010 and 2011 years was recovered. According to European Photonics Industry Consortium new solar PV installations grow by 56% compared to 2010 reached 64.7 GW in 2011. Revenues in the PV industry reached a record high of $93 billion in 2011, a 13.4 percent gain over 2010 â�� and 150 percent over 2009. This growth was forecasted to continue in 2013 with double digits growth. The solar industry is economically driven to make solar panels of the highest conversion efficiency and reliability at the lowest production cost. The Resonance Ultrasonic Vibration system addresses critical needs of the silicon-based solar industry by providing a quality control method and tool, which will improve productivity, increase reliability of products and reduce manufacturing cost of solar panels.

  4. 16,000-rpm Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation

    SciTech Connect (OSTI)

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

    2007-10-31

    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.

  5. What is the angular velocity of earth around the sun? Give in rad/s, rev/s and rpm

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    1 example What is the angular velocity of earth around the sun? Give in rad/s, rev/s and rpm Answer.1 rad (=22400=6.2 rev) #12;3 examplea b 5m 6m The angular velocity of a is 2 rad/s. a) What is its tangential velocity? If b is keeping pace with a, b) What is its angular velocity? c) What is its linear

  6. Configurations The

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibilitydefaultin Testing Configurations The PSEL's

  7. Retractable pin dual in-line package test clip

    DOE Patents [OSTI]

    Bandzuch, Gregory S. (Washington, PA); Kosslow, William J. (Jefferson Boro, PA)

    1996-01-01

    This invention is a Dual In-Line Package (DIP) test clip for use when troubleshooting circuits containing DIP integrated circuits. This test clip is a significant improvement over existing DIP test clips in that it has retractable pins which will permit troubleshooting without risk of accidentally shorting adjacent pins together when moving probes to different pins on energized circuits or when the probe is accidentally bumped while taking measurements.

  8. In-Line Nondestructive Evaluation of Slot-Die-Coated Lithium...

    Office of Scientific and Technical Information (OSTI)

    Nondestructive Evaluation of Slot-Die-Coated Lithium Secondary Battery Electrode by Laser Caliper and Thermography Citation Details In-Document Search Title: In-Line...

  9. Real-time sub-Ångstrom...

    Office of Scientific and Technical Information (OSTI)

    Real-time sub-inline'>ngstrom imaging of reversible and irreversible conformations in rhodium catalysts and graphene Kisielowski, Christian; Wang,...

  10. A study of the effect of in-line and perpendicular magnetic fields on beam characteristics of electron guns in medical linear accelerators

    SciTech Connect (OSTI)

    Constantin, Dragos E.; Fahrig, Rebecca; Keall, Paul J.

    2011-07-15

    Purpose: Using magnetic resonance imaging (MRI) for real-time guidance during radiotherapy is an active area of research and development. One aspect of the problem is the influence of the MRI scanner, modeled here as an external magnetic field, on the medical linear accelerator (linac) components. The present work characterizes the behavior of two medical linac electron guns with external magnetic fields for in-line and perpendicular orientations of the linac with respect to the MRI scanner. Methods: Two electron guns, Litton L-2087 and Varian VTC6364, are considered as representative models for this study. Emphasis was placed on the in-line design approach in which case the MRI scanner and the linac axes of symmetry coincide and assumes no magnetic shielding of the linac. For the in-line case, the magnetic field from a 0.5 T open MRI (GE Signa SP) magnet with a 60 cm gap between its poles was computed and used in full three dimensional (3D) space charge simulations, whereas for the perpendicular case the magnetic field was constant. Results: For the in-line configuration, it is shown that the electron beam is not deflected from the axis of symmetry of the gun and the primary beam current does not vanish even at very high values of the magnetic field, e.g., 0.16 T. As the field strength increases, the primary beam current has an initial plateau of constant value after which its value decreases to a minimum corresponding to a field strength of approximately 0.06 T. After the minimum is reached, the current starts to increase slowly. For the case when the beam current computation is performed at the beam waist position the initial plateau ends at 0.016 T for Litton L-2087 and at 0.012 T for Varian VTC6364. The minimum value of the primary beam current is 27.5% of the initial value for Litton L-2087 and 22.9% of the initial value for Varian VTC6364. The minimum current is reached at 0.06 and 0.062 T for Litton L-2087 and Varian VTC6364, respectively. At 0.16 T the beam current increases to 40.2 and 31.4% from the original value of the current for Litton L-2087 and Varian VTC6364, respectively. In contrast, for the case when the electron gun is perpendicular to the magnetic field, the electron beam is deflected from the axis of symmetry even at small values of the magnetic field. As the strength of the magnetic field increases, so does the beam deflection, leading to a sharp decrease of the primary beam current which vanishes at about 0.007 T for Litton L-2087 and at 0.006 T for Varian VTC6364, respectively. At zero external field, the beam rms emittance computed at beam waist is 1.54 and 1.29{pi}-mm-mrad for Litton L-2087 and Varian VTC6364, respectively. For the in-line configuration, there are two particular values of the external field where the beam rms emittance reaches a minimum. Litton L-2087 rms emittance reaches a minimum of 0.72{pi} and 2.01{pi}-mm-mrad at 0.026 and 0.132 T, respectively. Varian VTC6364 rms emittance reaches a minimum of 0.34{pi} and 0.35{pi}-mm-mrad at 0.028 and 0.14 T, respectively. Beam radius dependence on the external field is shown for the in-line configuration for both electron guns. Conclusions: 3D space charge simulation of two electron guns, Litton L-2087 and Varian VTC6364, were performed for in-line and perpendicular external magnetic fields. A consistent behavior of Pierce guns in external magnetic fields was proven. For the in-line configuration, the primary beam current does not vanish but a large reduction of beam current (up to 77.1%) is observed at higher field strengths; the beam directionality remains unchanged. It was shown that for a perpendicular configuration the current vanishes due to beam bending under the action of the Lorentz force. For in-line configuration it was determined that the rms beam emittance reaches two minima for relatively high values of the external magnetic field.

  11. IEMDC - In-Line Electric Motor Driven Compressor

    SciTech Connect (OSTI)

    Michael J. Crowley

    2004-03-31

    This report covers the fifth quarter (01/01/04 to 03/31/04) of the In-Line Electric Motor Driven Compressor (IEMDC) project. Design efforts on the IEMDC continued with compressor efforts focused on performing aerodynamic analyses. These analyses were conducted using computational fluid dynamics. Compressor efforts also entailed developing mechanical designs of components through the use of solid models and working on project deliverables. Electric motor efforts focused on the design of the magnetic bearing system, motor pressure housing, and the motor-compressor interface. The mechanical evaluation of the main interface from both the perspective of the compressor manufacturer and electric motor manufacturer indicates that an acceptable design has been achieved. All mechanical and aerodynamic design efforts have resulted in considerable progress being made towards the completion of the compressor and electric motor design and towards the successful completion of the IEMDC unit.

  12. In-line assay monitor for uranium hexafluoride

    DOE Patents [OSTI]

    Wallace, S.A.

    1980-03-21

    An in-line assay monitor for determining the content of uranium-235 in a uranium hexafluoride gas isotopic separation system is provided which removes the necessity of complete access to the operating parameters of the system for determining the uranium-235 content. The method and monitor for carrying out the method involve cooling of a radiation pervious chamber connected in fluid communication with the selected point in the system to withdraw a specimen and solidify the specimen in the chamber. The specimen is irradiated by means of an ionizing radiation source of energy different from that of the 185 keV gamma emissions from uranium-235. The uranium-235 content of the specimen is determined from comparison of the accumulated 185 keV energy counts and reference energy counts. The latter is used to measure the total uranium isotopic content of the specimen.

  13. Acrobat XI Configuration

    Broader source: Energy.gov [DOE]

    Acrobat XI includes a number of configuration options. The following PDFs include EERE's recommended configuration for preparing standards compliant PDFs. The files also include the job settings needed.

  14. Configuration Structures (extended abstract)

    E-Print Network [OSTI]

    Pratt, Vaughan

    Configuration Structures (extended abstract) R.J. van Glabbeek \\Lambda Computer Science Department Science University of Edinburgh Edinburgh EH9 3JZ, UK gdp@dcs.ed.ac.uk Abstract Configuration structures provide a model of concur­ rency generalising the families of configurations of event structures. They can

  15. Deriving Particle Distributions from In-Line Fraunhofer Holographic Data

    SciTech Connect (OSTI)

    C.A. Ciarcia; D.E. Johnson; D.S. Sorenson; R.H. Frederickson, A.D. Delanoy; R.M. Malone; T.W. Tunnel

    1997-08-01

    Holographic data are acquired during hydrodynamic experiments at the Pegasus Pulsed Power Facility at the Los Alamos National Laboratory. These experiments produce a fine spray of fast-moving particles. Snapshots of the spray are captured using in-line Fraunhofer holographic techniques. Roughly one cubic centimeter is recorded by the hologram. Minimum detectable particle size in the data extends down to 2 microns. In a holography reconstruction system, a laser illuminates the hologram as it rests in a three-axis actuator, recreating the snapshot of the experiment. A computer guides the actuators through an orderly sequence programmed by the user. At selected intervals, slices of this volume are captured and digitized with a CCD camera. Intermittent on-line processing of the image data and computer control of the camera functions optimizes statistics of the acquired image data for off-line processing. Tens of thousands of individual data frames (30 to 40 gigabytes of data) are required to recreate a digital representation of the snapshot. Throughput of the reduction system is 550 megabytes per hour (MB/hr). Objects and associated features from the data are subsequently extracted during off-line processing. Discrimination and correlation tests reject noise, eliminate multiple counting of particles, and build an error model to estimate performance. Objects surviving these tests are classified as particles. The particle distributions are derived from the data base formed by these particles, their locations and features. Throughput of the off-line processing exceeds 500 MB/hr. This paper describes the reduction system, outlines the off-line processing procedure, summarizes the discrimination and correlation tests, and reports numerical results for a sample data set.

  16. WE-G-17A-09: Novel Magnetic Shielding Design for Inline and Perpendicular Integrated 6 MV Linac and 1.0 T MRI Systems

    SciTech Connect (OSTI)

    Li, X; Ma, B; Kuang, Y; Diao, X

    2014-06-15

    Purpose: The influence of fringe magnetic fields delivered by magnetic resonance imaging (MRI) on the beam generation and transportation in Linac is still a major challenge for the integration of linear accelerator and MRI (Linac-MRI). In this study, we investigated an optimal magnetic shielding design for Linac-MRI and further characterized the beam trajectory in electron gun. Methods: Both inline and perpendicular configurations were analyzed in this study. The configurations, comprising a Linac-MRI with a 100cm SAD and an open 1.0 T superconductive magnet, were simulated by the 3D finite element method (FEM). The steel shielding around the Linac was included in the 3D model, the thickness of which was varied from 1mm to 20mm, and magnetic field maps were acquired with and without additional shielding. The treatment beam trajectory in electron gun was evaluated using OPERA 3d SCALA with and without shielding cases. Results: When Linac was not shielded, the uniformity of diameter sphere volume (DSV) (30cm) was about 5 parts per million (ppm) and the fringe magnetic fields in electron gun were more than 0.3 T. With shielding, the magnetic fields in electron gun were reduced to less than 0.01 T. For the inline configuration, the radial magnetic fields in the Linac were about 0.02T. A cylinder steel shield used (5mm thick) altered the uniformity of DSV to 1000 ppm. For the perpendicular configuration, the Linac transverse magnetic fields were more than 0.3T, which altered the beam trajectory significantly. A 8mm-thick cylinder steel shield surrounding the Linac was used to compensate the output losses of Linac, which shifted the magnetic fields' uniformity of DSV to 400 ppm. Conclusion: For both configurations, the Linac shielding was used to ensure normal operation of the Linac. The effect of magnetic fields on the uniformity of DSV could be modulated by the shimming technique of the MRI magnet. NIH/NIGMS grant U54 GM104944, Lincy Endowed Assistant Professorship.

  17. Evaluation of a Region-based Partial Inlining Algorithm for an ILP Optimizing Compiler

    E-Print Network [OSTI]

    Way, Thomas

    Evaluation of a Region-based Partial Inlining Algorithm for an ILP Optimizing Compiler Tom Way, USA email: ¡ way,pollock¢ @cis.udel.edu ABSTRACT An ILP optimizing compiler using a region optimization and schedul- ing opportunities. Regions provide the compiler with better control of the unit

  18. IEMDC -IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR

    SciTech Connect (OSTI)

    Michael J. Crowley; Prem N. Bansal; John E. Tessaro

    2004-01-01

    Dresser-Rand completed the preliminary aerodynamic flowpath of the volute and inlet design for the compressor section. This has resulted in considerable progress being made on the development of the compressor section and ultimately towards the successful integration of the IEMDC System design. Significant effort was put forth in the design of aerodynamic components which resulted in a design that meets the limits of aerodynamically induced radial forces previously established. Substantial effort has begun on the mechanical design of the compressor pressure containing case and other internal components. These efforts show progression towards the successful integration of a centrifugal compressor and variable speed electric motor ventilated by the process gas. All efforts continue to confirm the feasibility of the IEMDC system design. During the third quarter reporting period, the focus was to further refine the motor design and to ensure that the IEMDC rotor system supported on magnetic bearing is in compliance with the critical speed and vibration requirements of the API standards 617 and 541. Consequently specification to design magnetic bearings was developed and an RFQ to three magnetic bearing suppliers was issued. Considerable work was also performed to complete preliminary reports on some of the deliverable tasks under phase 1.0. These include specification for the VFD, RFQ for the magnetic bearings, and preliminary write-up for motor instrumentation and control schematic. In order to estimate motor efficiency at various operating points, plots of calculated motor losses, and motor cooling gas flow rates were also prepared. Preliminary evaluations of motor support concepts were performed via FEA to determine modal frequencies. Presentation was made at DOE Morgantown on August 12, 2003 to provide project status update. Preparations for the IEMDC motor-compressor presentation, at the GMRC conference in Salt Lake City to be held on October 5, 2003, were also started. Detailed calculations of cooling gas flow requirements for the motor and magnetic bearings, per several new operating points designated by DR, confirmed that the required gas flow was within the compressor design guidelines. Previous thrust load calculations had confirmed that the magnetic thrust bearing design load capacity of 6,000 lb. was sufficient to handle the net thrust load produced by the motor and compressor pressure loading. Thus the design data that has been generated, for the variable speed 10 MW 12,000 rpm motor, during the last three quarters, continue to confirm the feasibility of an efficient and robust motor design.

  19. Geography of local configurations

    E-Print Network [OSTI]

    David Coupier

    2010-10-12

    A $d$-dimensional binary Markov random field on a lattice torus is considered. As the size $n$ of the lattice tends to infinity, potentials $a=a(n)$ and $b=b(n)$ depend on $n$. Precise bounds for the probability for local configurations to occur in a large ball are given. Under some conditions bearing on $a(n)$ and $b(n)$, the distance between copies of different local configurations is estimated according to their weights. Finally, a sufficient condition ensuring that a given local configuration occurs everywhere in the lattice is suggested.

  20. SU-E-T-317: The Development of a DIBH Technique for Left Sided Breast Patients Undergoing Radiation Therapy Utilizing Varians RPM System in a Community Hospital

    SciTech Connect (OSTI)

    Hasson, B; Young, M; Workie, D; Geraghty, C

    2014-06-01

    Purpose: To develop and implement a Deep Inhalation Breath Hold program (DIBH) for treatment of patients with Left-sided breast cancer in a community hospital. Methods: All patients with left sided breast cancer underwent a screening free breathing CT. Evaluation of the conventional tangent treatment fields and the heart was conducted. If the heart would not be excluded using tangents, the patient then received DIBH breathe coaching. The patients returned for a 4D CT simulation. The patients breathing cycle was monitored using the Varian Real-Time position ManagementTM (RPM) system to assess duration of DIBH, amplitude, phase and recovery time to normal breathing. Then a DIBH CT was obtained at the desired amplitude. Duplicate plans were developed for both free breathing and DIBH on the Eclipse planning system and comparison DVH's were created. The plan that provided the prescribed treatment coverage and the least doses to the OAR (heart, Lt. Lung) was determined. Those patients selected to receive treatment with DIBH were set up for treatment, and breathing was monitored using the RPM system. Practice trials were used to confirm that the amplitude, phase and recovery were consistent with findings from simulation. Results: 10 patients have been treated using the DIBH procedure in our clinic. The DIBH patients had an average increase of 80% lung volume on DIBH, decreased lung volume receiving 50% of the dose, and decreases in the V20 dose. Significant reduction in the maximum and mean dose to the heart, as well as the dose to 1CC of the volume for the DIBH plans. Conclusion: Using the RPM system already available in the clinic, staff training, and patient coaching a simple DIBH program was setup. The use of DIBH has shown promise in reducing doses to the critical organs while maintaining PTV coverage for left sided breast treatments.

    1. Effect of longitudinal magnetic fields on a simulated in-line 6 MV linac

      SciTech Connect (OSTI)

      St Aubin, J.; Santos, D. M.; Steciw, S.; Fallone, B. G. [Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada)

      2010-09-15

      Purpose: Linac-magnetic resonance (MR) systems have been proposed in order to achieve real-time image guided radiotherapy. The design of a new linac-MR system with the in-line 6 MV linac generating x-rays along the symmetry axis of an open MR imager is outlined. This new design allows for a greater MR field strength to achieve better quality images while reducing hot and cold spots in treatment planning. An investigation of linac's performance in the longitudinal fringe magnetic fields of the MR imager is given. Methods: The open MR imager fringe magnetic field was modeled using the analytic solution of the magnetic field generated from current carrying loops. The derived solution was matched to the magnetic fringe field isolines provided for a 0.5 T open MR imager through Monte Carlo optimization. The optimized field solution was then added to the previously validated 6 MV linac simulation to quantify linac's performance in the fringe magnetic field of a 0.5 T MR imager. To further the investigation, linac's performance in large fringe fields expected from other imagers was investigated through the addition of homogeneous longitudinal fields. Results: The Monte Carlo optimization of the analytic current loop solution provided good agreement with the magnetic fringe field isolines supplied by the manufacturer. The range of magnetic fields the linac is expected to experience when coupled to the 0.5 T MR imager was determined to be from 0.0022 to 0.011 T (as calculated at the electron gun cathode). The effect of the longitudinal magnetic field on the electron beam was observed to be only in the electron gun. The longitudinal field changed the electron gun optics, affecting beam characteristics, such as a slight increase in the injection current and beam diameter, and an increasingly nonlaminar transverse phase space. Although the target phase space showed little change in its energy spectrum from the altered injection phase space, a reduction in the target current and spatial distribution peak intensity was observed. Despite these changes, the target phase space had little effect on the depth dose curves or dose profiles calculated for a 40x40 cm{sup 2} field at 1.5 cm depth. At longitudinal fields larger than 0.012 T, a drastic reduction in the injection current from the electron gun was observed due to a large fraction of electrons striking the anode. This further reduced the target current, which reached a minimum of 28{+-}2 mA at 0.06 T. A slow increase in the injection and target currents was observed at fields larger than 0.06 T due to greater beam collimation in the anode beam tube. Conclusions: In an effort to achieve higher quality images and a reduction in hot and cold spots in the treatment plan, a parallel configuration linac-MR system is presented. The longitudinal magnetic fields of the MR imager caused large beam losses within the electron gun. These losses may be eliminated through a redesign of the electron gun optics incorporating a longitudinal magnetic field, or through magnetic shielding, which has already been proven successful for the transverse configuration.

    2. Drying: a comparison of radial jet reattachment and standard in-line jets 

      E-Print Network [OSTI]

      Habetz, Darren Keith

      1991-01-01

      of Committee) Cyrus Ostowari (member) , ~?: Walter L. Bradley (Head of Department) Jamal Seyed- Yagoobi (member) August 1991 ABSTRACT Drying; A Comparison of Radial Jet Reattachment and Standard In-Line Jets. (August 1991) Darren Keith Habetz, B. S..., and support have been seemingly endless. I am truly grateful. Darren K. Habetz ACKNOWLEDGMENT Special appreciation is offered to Professors Anwar Ahmed, ~s Ostowari, and Jamal Seyed-Yagoobi for their vital assistance throughout the duration...

    3. Fully-automatic laser welding and micro-sculpting with universal in situ inline coherent imaging

      E-Print Network [OSTI]

      Webster, Paul J L; Ji, Yang; Galbraith, Christopher M; Kinross, Alison W; Van Vlack, Cole; Fraser, James M

      2014-01-01

      Though new affordable high power laser technologies make possible many processing applications in science and industry, depth control remains a serious technical challenge. Here we show that inline coherent imaging, with line rates up to 312 kHz and microsecond-duration capture times, is capable of directly measuring laser penetration depth in a process as violent as kW-class keyhole welding. We exploit ICI's high speed, high dynamic range and robustness to interference from other optical sources to achieve fully automatic, adaptive control of laser welding as well as ablation, achieving micron-scale sculpting in vastly different heterogeneous biological materials.

    4. Production of higher quality bio-oils by in-line esterification of pyrolysis vapor

      DOE Patents [OSTI]

      Hilten, Roger Norris; Das, Keshav; Kastner, James R; Bibens, Brian P

      2014-12-02

      The disclosure encompasses in-line reactive condensation processes via vapor phase esterification of bio-oil to decease reactive species concentration and water content in the oily phase of a two-phase oil, thereby increasing storage stability and heating value. Esterification of the bio-oil vapor occurs via the vapor phase contact and subsequent reaction of organic acids with ethanol during condensation results in the production of water and esters. The pyrolysis oil product can have an increased ester content and an increased stability when compared to a condensed pyrolysis oil product not treated with an atomized alcohol.

    5. Four-dimensional visualization of single and multiple laser filaments using in-line holographic microscopy

      SciTech Connect (OSTI)

      Abdollahpour, Daryoush; Papazoglou, Dimitrios G.; Tzortzakis, Stelios

      2011-11-15

      It is shown, both through simulations and experiments, that the in-line holographic microscopy technique can be used to retrieve very small refractive-index perturbations caused during the filamentation of ultrashort laser pulses. This technique provides the possibility of having spatially and temporally (four dimensions) resolved measurements of refractive-index changes, down to 10{sup -4}, from objects with diameters as small as 10 {mu}m. Moreover, we demonstrate the power of the technique in discriminating multiple filaments in a precise quantitative way.

    6. Forbidden Configurations A shattered history

      E-Print Network [OSTI]

      Fournier, John J.F.

      Forbidden Configurations A shattered history Richard Anstee UBC Vancouver Western Washington University, Bellingham, Nov 22, 2014 Richard AnsteeUBC Vancouver Forbidden Configurations A shattered history Ronyai, and Attila Sali. Richard AnsteeUBC Vancouver Forbidden Configurations A shattered history #12

    7. Inductrack magnet configuration

      DOE Patents [OSTI]

      Post, Richard Freeman

      2003-10-14

      A magnet configuration comprising a pair of Halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second component of their fields substantially adds at this first plane. A track of windings is located between the pair of Halbach arrays and a propulsion mechanism is provided for moving the pair of Halbach arrays along the track. When the pair of Halbach arrays move along the track and the track is not located at the first plane, a current is induced in the windings and a restoring force is exerted on the pair of Halbach arrays.

    8. Inductrack magnet configuration

      DOE Patents [OSTI]

      Post, Richard Freeman

      2003-12-16

      A magnet configuration comprising a pair of Halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second component of their fields substantially adds at this first plane. A track of windings is located between the pair of Halbach arrays and a propulsion mechanism is provided for moving the pair of Halbach arrays along the track. When the pair of Halbach arrays move along the track and the track is not located at the first plane, a current is induced in the windings and a restoring force is exerted on the pair of Halbach arrays.

    9. Power converter connection configuration

      DOE Patents [OSTI]

      Beihoff, Bruce C. (Wauwatosa, WI); Kehl, Dennis L. (Milwaukee, WI); Gettelfinger, Lee A. (Brown Deer, WI); Kaishian, Steven C. (Milwaukee, WI); Phillips, Mark G. (Brookfield, WI); Radosevich, Lawrence D. (Muskego, WI)

      2008-11-11

      EMI shielding is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

    10. High Harmonic Forces and Predicted Vibrations from Forced In-line and Cross-flow Cylinder Motions

      E-Print Network [OSTI]

      Dahl, Jason

      String-like ocean structures, such as deep water marine risers are susceptible to a condition of dual lock-in, where both the in-line and transverse natural frequencies are excited due to vortex shedding in the wake. This ...

    11. IN-LINE HIGH-RATE DEPOSITION OF ALUMINUM ONTO RISE SOLAR CELLS BY ELECTRON BEAM TECHNOLOGY

      E-Print Network [OSTI]

      IN-LINE HIGH-RATE DEPOSITION OF ALUMINUM ONTO RISE SOLAR CELLS BY ELECTRON BEAM TECHNOLOGY Jens , Ruediger Meyer 3 1) Fraunhofer Institute for Electron Beam and Plasma Technology (FEP), Winterbergstr. 28 Through (RISE EWT) solar cells by electron beam high-rate evaporation of aluminum. In stationary

    12. Effect of tube spacing on the vortex shedding characteristics of laminar flow past an inline tube array: A numerical study

      E-Print Network [OSTI]

      Luo, Xiaoyu

      Effect of tube spacing on the vortex shedding characteristics of laminar flow past an inline tube the tubes. Complex flow dynamic phenomena such as reattachment of shear layers, in- duced separation, vortex Accepted 27 October 2008 Available online 14 November 2008 a b s t r a c t The effect of tube spacing

    13. An in-line thermal-neutron coincidence counter for WIPP (Waste Isolation Pilot Plant) certification measurements

      SciTech Connect (OSTI)

      Krick, M.S.; Osborne, L.; Polk, P.J.; Atencio, J.D.; Bjork, C.

      1989-10-01

      A custom-designed, in-line, thermal-neutron coincidence counter has been constructed for the certification of plutonium waste intended for storage at the Waste Isolation Pilot Plant. The mechanical and electrical components of the system and its performance characteristics are described. 6 refs., 16 figs.

    14. In-line inspection of large diameter pipelines using enhanced collapsible pigs

      SciTech Connect (OSTI)

      Pikas, J.L.

      1996-08-01

      In-line inspection tools, smart pigs, are devices that detect magnetic irregularities or anomalies in the wall of the pipe that includes corrosion, gouges, and material defects that exhibit metal loss. However, they do not normally detect stress corrosion cracking (SCC), hydrogen embrittlement, hard spots, certain types of horizontal defects, and anomalies on or near the girth weld. Dents if significant, casings, and foreign metallic objects if touching the pipe may also be detected qualitatively. Also, features such as welds, valves, taps, flanges, test station plates, and other appurtenances can be identified. Case histories and field findings using the newly developed 30 inch x 24 inch and 36 inch x 30 inch collapsible smart pigs will be discussed. In addition, the results of the first generation smart pigs with enhancements consisting of hardware developments, new field logs, and software will be presented.

    15. OPENENDED CONFIGURATIONS OF RADIO TELESCOPES

      E-Print Network [OSTI]

      Kreinovich, Vladik

      telescopes, devices that use the second observability window of radio waves. Why configurations of radioOPEN­ENDED CONFIGURATIONS OF RADIO TELESCOPES: A GEOMETRICAL ANALYSIS Vladik Kreinovich, Scott A. The quality of radio astronomical images drastically depends on where we place the radio telescopes. During

    16. OPENENDED CONFIGURATIONS OF RADIO TELESCOPES

      E-Print Network [OSTI]

      Kreinovich, Vladik

      telescopes, devices that use the second observability window of radio waves. #12; Why configurations of radioOPEN­ENDED CONFIGURATIONS OF RADIO TELESCOPES: TOWARDS OPTIMAL DESIGN VLADIK KREINOVICH, SCOTT A, Russia ABSTRACT The quality of radio astronomical images drastically depends on where we place the radio

    17. SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration...

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

      SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management...

    18. Terahertz in-line digital holography of dragonfly hindwing: amplitude and phase reconstruction at enhanced resolution by extrapolation

      E-Print Network [OSTI]

      Rong, Lu; Wang, Dayong; Zhou, Xun; Huang, Haochong; Li, Zeyu; Wang, Yunxin

      2014-01-01

      We report here on terahertz (THz) digital holography on a biological specimen. A continuous-wave (CW) THz in-line holographic setup was built based on a 2.52 THz CO2 pumped THz laser and a pyroelectric array detector. We introduced novel statistical method of obtaining true intensity values for the pyroelectric array detector's pixels. Absorption and phase-shifting images of a dragonfly's hind wing were reconstructed simultaneously from single in-line hologram. Furthermore, we applied phase retrieval routines to eliminate twin image and enhanced the resolution of the reconstructions by hologram extrapolation beyond the detector area. The finest observed features are 35 {\\mu}m width cross veins.

    19. Equation (30) should read Equation (E1) should be the same as Equation (38). Accordingly, the inlined

      E-Print Network [OSTI]

      van de Walle, Axel

      Equation (30) should read F (T2) T2 = F (T1) T1 + Z 1/T2 1/T1 E d (1/T) Equation (E1) should be the same as Equation (38). Accordingly, the inlined equation just below Equation (E11) should be: ¡ kAB/ kAAkBB - 1 ¢ ¿ 1. To facilitate comparisons, Equation (E14) gives the effective cluster interac- tion using

    20. The design of a simulated in-line side-coupled 6 MV linear accelerator waveguide

      SciTech Connect (OSTI)

      St Aubin, Joel; Steciw, Stephen; Fallone, B. G. [Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada) and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); Department of Physics, University of Alberta, 11322-89 Avenue, Edmonton, Alberta T6G 2G7 (Canada); Department of Medical Physics, Cross Cancer Institute, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada); and Department of Oncology, Medical Physics Division, University of Alberta, 11560 University Avenue, Edmonton, Alberta T6G 1Z2 (Canada)

      2010-02-15

      Purpose: The design of a 3D in-line side-coupled 6 MV linac waveguide for medical use is given, and the effect of the side-coupling and port irises on the radio frequency (RF), beam dynamics, and dosimetric solutions is examined. This work was motivated by our research on a linac-MR hybrid system, where accurate electron trajectory information for a clinical medical waveguide in the presence of an external magnetic field was needed. Methods: For this work, the design of the linac waveguide was generated using the finite element method. The design outlined here incorporates the necessary geometric changes needed to incorporate a full-end accelerating cavity with a single-coupling iris, a waveguide-cavity coupling port iris that allows power transfer into the waveguide from the magnetron, as well as a method to control the RF field magnitude within the first half accelerating cavity into which the electrons from the gun are injected. Results: With the full waveguide designed to resonate at 2998.5{+-}0.1 MHz, a full 3D RF field solution was obtained. The accuracy of the 3D RF field solution was estimated through a comparison of important linac parameters (Q factor, shunt impedance, transit time factor, and resonant frequency) calculated for one accelerating cavity with the benchmarked program SUPERFISH. It was found that the maximum difference between the 3D solution and SUPERFISH was less than 0.03%. The eigenvalue solver, which determines the resonant frequencies of the 3D side-coupled waveguide simulation, was shown to be highly accurate through a comparison with lumped circuit theory. Two different waveguide geometries were examined, one incorporating a 0.5 mm first side cavity shift and another with a 1.5 mm first side cavity shift. The asymmetrically placed side-coupling irises and the port iris for both models were shown to introduce asymmetries in the RF field large enough to cause a peak shift and skewing (center of gravity minus peak shift) of an initially cylindrically uniform electron beam accelerating within the waveguide. The shifting and skewing of the electron beam were found to be greatest due to the effects of the side-coupling irises on the RF field. A further Monte Carlo study showed that this effect translated into a 1% asymmetry in a 40x40 cm{sup 2} field dose profile. Conclusions: A full 3D design for an in-line side-coupled 6 MV linear accelerator that emulates a common commercial waveguide has been given. The effect of the side coupling on the dose distribution has been shown to create a slight asymmetry, but overall does not affect the clinical applicability of the linac. The 3D in-line side-coupled linac model further provides a tool for the investigation of linac performance within an external magnetic field, which exists in an integrated linac-MR system.

    1. Configuration Spaces in Fundamental Physics

      E-Print Network [OSTI]

      Edward Anderson

      2015-05-13

      I consider configuration spaces for $N$-body problems, gauge theories and for GR in both geometrodynamical and Ashtekar variables forms, including minisuperspace and inhomogeneous perturbations thereabout in the former case. These include many interesting spaces of shapes (with and without whichever of local or global notions of scale). In considering reduced configuration spaces, stratified manifolds arise. Three strategies to deal with these are `excise', `unfold' and `accept'. I show that spaces of triangles arising from various interpretations of 3-body problems already serve as model arena for all three. I furthermore argue in favour of the `accept' strategy on relational grounds. Sheaf methods then become relevant in this case, as does the stratifold construct that pairs some well-behaved stratified manifolds with sheaves. I apply arguing against `excise' and `unfold' to GR's superspace and thin sandwich, and to the removal of collinear configurations in mechanics. Non-redundant configurations are also useful in providing more accurate names for various spaces and theories. I also cover notions of distance between shapes, that some perturbative midisuperspace configuration spaces are simple and similar to minisuperspace ones, and similarities between CS (conformal superspace) and CS + V (including the global spatial volume).

    2. Nissan's new in-line DOHC six cylinder engine and its development

      SciTech Connect (OSTI)

      Ishida, Y.; Ito, K.; Kita, Y.; Kadowaki, S.

      1986-01-01

      The new RB20 engine series comprises in-line, 6-cylinder, 2-liter gasoline engines with an all-new design that succeed the L20 engine (1), whose performance has been upgraded numerous times since it was first released 20 years ago. The RB20 engine series includes a single-overhead-cam (SOHC) engine and a double-overhead-cam (DOHC) engine, each of which also has a turbocharged version, making a total of four different engine variations. This range of variations is intended to meet the broad, diversified needs of today's market. The main development theme set for the new engine family was to achieve ''improved performance that would appeal to the senses.'' Thus emphasis was not merely put on obtaining high performance figures, but on making real improvements in engine response and quietness that the driver could actually feel. This paper focuses on two of the four engine variations - the DOHC engine with and without a turbocharger. It discusses the basic engine construction, principal component parts and major development objectives. In the discussion that follows the DOHC engine without a turbocharger is referred to as RB20DE and the turbocharged DOHC engine is referred to as RB20DET.

    3. Configuration

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibilitydefault ChangesORNL's

    4. Configuration

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAuditsCluster Compatibilitydefault

    5. CONFIGURATION CHANGE PROPOSAL FORM | Department of Energy

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

      CONFIGURATION CHANGE PROPOSAL FORM CONFIGURATION CHANGE PROPOSAL FORM This form is used for sharing information on Domain Name Server (DNS) changes, new requirements, modifications...

    6. Secure Policy-Based Configuration Framework (PBCONF)

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

      Policy-Based Configuration Framework (PBCONF) Interoperable, open-source framework for secure remote configuration of modern and legacy devices Background Energy delivery devices...

    7. TUNGSTEN SHIELDS FOR CS-137 INLINE MONITORS IN THE CAUSTIC SIDE SOLVENT EXTRACTION PROCESS

      SciTech Connect (OSTI)

      Casella, V; Mark Hogue, M; Javier Reyes-Jimenez, J; Paul Filpus-Luyckx, P; Timothy Riley, T; Fred Ogden, F; Donald Pak, D

      2007-05-10

      The Department of Energy (DOE) selected Caustic-Side Solvent Extraction (CSSX) as the preferred technology for the removal of radioactive cesium from High-Level Waste (HLW) at the Savannah River Site (SRS). The CSSX process is a continuous process that uses a novel solvent to extract cesium from highly radioactive waste and concentrate it in dilute nitric acid. In-line analyses are performed with gamma-ray monitors to measure the C-137 concentration in the decontaminated salt solution (DSS) and in the strip effluent (SE). Sodium iodide (NaI) monitors are used to measure the Cs-137 concentration before the DSS Hold Tank, while Geiger-Mueller (GM) monitors are used for Cs-137 measurements before the SE hold tank. Tungsten shields were designed using Monte Carlo calculations and fabricated to provide the needed reduction of the process background radiation at the detector positions. A one-inch tungsten cylindrical shield reduced the background radiation by a factor of fifty that was adequate for the GM detectors, while a three-and-one-half-inch tungsten cylindrical shield was required for the NaI detectors. Testing of the NaI shield was performed at the SRS Instrument Calibration Facility. Based on this testing, the as-built shield is predicted to be able to detect the MCU DSS stream at concentrations above 0.003 Ci/gal under the ''worst case'' field conditions with a MCU feed solution of 1.1 Ci/gal and all of the process tanks completely full. This paper discusses the design, fabrication, testing and implementation of the tungsten shields in the MCU facility.

    8. SICS. A Sensor-Based In-Line Control System for the Surfaces of Continuously Cast Slabs

      SciTech Connect (OSTI)

      Chang, Tzyy-Shuh [OG Technologies, Inc., Ann Arbor, MI (United States)

      2013-09-23

      The Phase II project has been carried out in accordance to the proposed tasks and budget, based on the original and extended schedule. The R&D team designed and implemented the test unit for the full width coverage, installed the unit in a caster. The development work further included enhanced image processing, in-depth defect study and process control models. The function, operation, and maintenance of the SICS was thoroughly studied during the Phase II research. The experience indicates additional hardware and procedures are required to make the SICS a commercially ready product in operation and maintenance aspect. Such developments have been finished and the team is contacting potential customers for the first commercial installation of SICS. Additionally, OGT is exploring the possibility to team up with a US company that specializes in surface cleaning for slabs/blooms/billets such that the in-line surface inspection can be integrated with in-line surface clean up for the maximum benefit to the steel industry.

    9. Multiple forearm robotic elbow configuration

      DOE Patents [OSTI]

      Fisher, John J. (Wilmington, DE)

      1990-01-01

      A dual forearmed robotic elbow configuration comprises a main arm having a double elbow from which two coplanar forearms depend, two actuators carried in the double elbow for moving the forearms, and separate, independent end effectors, operated by a cable carried from the main arm through the elbow, is attached to the distal end of each forearm. Coiling the cables around the actuators prevents bending or kinking when the forearms are rotated 360 degrees. The end effectors can have similar or different capabilities. Actuator cannisters within the dual elbow are modular for rapid replacement or maintenance. Coarse and fine resolver transducers within the actuators provide accurate position referencing information.

    10. Configurational diffusion of coal macromolecules

      SciTech Connect (OSTI)

      Guin, J.A.; Curtis, C.W.; Tarrer, A.R.; Kim, S.; Hwang, D.; Chen, C.C.; Chiou, Z.

      1991-01-01

      The objective of our research was to obtain fundamental information regarding the functional dependence of the diffusion coefficient of coal molecules on the ratio of molecule to pore diameter. That is, the objective of our study was to examine the effect of molecule size and configuration on hindered diffusion of coal macromolecules through as porous medium. To best accomplish this task, we circumvented the complexities of an actual porous catalyst by using a well defined porous matrix with uniform capillaric pores, i.e., a track-etched membrane. In this way, useful information was obtained regarding the relationship of molecular size and configuration on the diffusion rate of coal derived macromolecules through a pore structure with known geometry. Similar studies were performed using a pellet formed of porous alumina, to provide a link between the idealized membranes and the actual complex pore structure of real catalyst extrudates. The fundamental information from our study will be useful toward the tailoring of catalysts to minimize diffusional influences and thereby increase coal conversion and selectivity for desirable products. (VC)

    11. Configuration Management for Open Source Software

      E-Print Network [OSTI]

      Bendix, Lars

      , configuration selection, workspace management, concurrency control, change management and release management. In this position paper, we do not present our full study, but just the change management task, which is where OSS configuration management differs mostly from CSD configuration management. Change management processes compared

    12. DEVELOPMENT OF OPTIMUM DESIGN CONFIGURATION AND

      E-Print Network [OSTI]

      DEVELOPMENT OF OPTIMUM DESIGN CONFIGURATION AND PERFORMANCE FOR VERTICAL AXIS WIND TURBINE Prepared DESIGN CONFIGURATION AND PERFORMANCE FOR VERTICAL AXIS WIND TURBINE EISG AWARDEE Mechanical and Aerospace://www.energy.ca.gov/research/index.html. #12;Page 1 Development Of Optimum Design Configuration And Performance For Vertical Axis Wind Turbine

    13. Reactor Configuration Development for ARIES-CS

      SciTech Connect (OSTI)

      Ku LP, the ARIES-CS Team

      2005-09-27

      New compact, quasi-axially symmetric stellarator configurations have been developed as part of the ARIES-CS reactor studies. These new configurations have good plasma confinement and transport properties, including low losses of ? particles and good integrity of flux surfaces at high ?. We summarize the recent progress by showcasing two attractive classes of configurationsconfigurations with judiciously chosen rotational transforms to avoid undesirable effects of low order resonances on the flux surface integrity and configurations with very small aspect ratios (?2.5) that have excellent quasi-axisymmetry and low field ripples.

    14. Electron contamination modeling and reduction in a 1 T open bore inline MRI-linac system

      SciTech Connect (OSTI)

      Oborn, B. M.; Kolling, S.; Metcalfe, P. E.; Crozier, S.; Litzenberg, D. W.; Keall, P. J.

      2014-05-15

      Purpose: A potential side effect of inline MRI-linac systems is electron contamination focusing causing a high skin dose. In this work, the authors reexamine this prediction for an open bore 1 T MRI system being constructed for the Australian MRI-Linac Program. The efficiency of an electron contamination deflector (ECD) in purging electron contamination from the linac head is modeled, as well as the impact of a helium gas region between the deflector and phantom surface for lowering the amount of air-generated contamination. Methods: Magnetic modeling of the 1 T MRI was used to generate 3D magnetic field maps both with and without the presence of an ECD located immediately below the MLC’s. Forty-seven different ECD designs were modeled and for each the magnetic field map was imported into Geant4 Monte Carlo simulations including the linac head, ECD, and a 30 × 30 × 30 cm{sup 3} water phantom located at isocenter. For the first generation system, the x-ray source to isocenter distance (SID) will be 160 cm, resulting in an 81.2 cm long air gap from the base of the ECD to the phantom surface. The first 71.2 cm was modeled as air or helium gas, with the latter encased between two windows of 50 ?m thick high density polyethlyene. 2D skin doses (at 70 ?m depth) were calculated across the phantom surface at 1 × 1 mm{sup 2} resolution for 6 MV beams of field size of 5 × 5, 10 × 10, and 20 × 20 cm{sup 2}. Results: The skin dose was predicted to be of similar magnitude as the generic systems modeled in previous work, 230% to 1400% ofD {sub max} for 5 × 5 to 20 × 20 cm{sup 2}, respectively. Inclusion of the ECD introduced a nonuniformity to the MRI imaging field that ranged from ?20 to ?140 ppm while the net force acting on the ECD ranged from ?151 N to ?1773 N. Various ECD designs were 100% efficient at purging the electron contamination into the ECD magnet banks; however, a small percentage were scattered back into the beam and continued to the phantom surface. Replacing a large portion of the extended air-column between the ECD and phantom surface with helium gas is a key element as it significantly minimized the air-generated contamination. When using an optimal ECD and helium gas region, the 70 ?m skin dose is predicted to increase moderately inside a small hot spot over that of the case with no magnetic field present for the jaw defined square beams examined here. These increases include from 12% to 40% of D {sub max} for 5 × 5 cm{sup 2}, 18% to 55% of D {sub max} for 10 × 10 cm{sup 2}, and from 23% to 65% of D {sub max} for 20 × 20 cm{sup 2}. Conclusions: Coupling an efficient ECD and helium gas region below the MLCs in the 160 cm isocenter MRI-linac system is predicted to ameliorate the impact electron contamination focusing has on skin dose increases. An ECD is practical as its impact on the MRI imaging distortion is correctable, and the mechanical forces acting on it manageable from an engineering point of view.

    15. Design and development of an in-line sputtering system and process development of thin film multilayer neutron supermirrors

      SciTech Connect (OSTI)

      Biswas, A.; Sampathkumar, R.; Kumar, Ajaya; Bhattacharyya, D.; Sahoo, N. K.; Lagoo, K. D.; Veerapur, R. D.; Padmanabhan, M.; Puri, R. K.; Bhattacharya, Debarati; Singh, Surendra; Basu, S.

      2014-12-15

      Neutron supermirrors and supermirror polarizers are thin film multilayer based devices which are used for reflecting and polarizing neutrons in various neutron based experiments. In the present communication, the in-house development of a 9 m long in-line dc sputtering system has been described which is suitable for deposition of neutron supermirrors on large size (1500 mm × 150 mm) substrates and in large numbers. The optimisation process of deposition of Co and Ti thin film, Co/Ti periodic multilayers, and a-periodic supermirrors have also been described. The system has been used to deposit thin film multilayer supermirror polarizers which show high reflectivity up to a reasonably large critical wavevector transfer of ?0.06 Å{sup ?1} (corresponding to m = 2.5, i.e., 2.5 times critical wavevector transfer of natural Ni). The computer code for designing these supermirrors has also been developed in-house.

    16. TSA RPM Simulator 1.0

      SciTech Connect (OSTI)

      2009-12-02

      The software listed here is a simulator for TSA Radiation Portal Monitors with version 1.10.1A firmware. The simulator provides messages similar to those provided by this piece of equipment.To facilitate testing of the Second Line of Defense systems and similar software products from commercial software vendors, this software simulation application has been developed that simulate the TSA Radiation Portal Monitor that Second Line of Defense communications software systems must interface with. The primary use of this simulator is for testing of both Sandia developed and DOE contractor developed software.

    17. RPM Flywheel Battery | Open Energy Information

      Open Energy Info (EERE)

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLCALLETEREFU Elektronik GmbH JumpChinaRM Eolica

    18. On Dual Configurational Forces SHAOFAN LIj

      E-Print Network [OSTI]

      Li, Shaofan

      they provide the dual energy­momentum tensor. Some previously unknown and yet interesting results in elasticity the configuration force (energy­momentum tensor) P and the dual configuration force (dual energy­momentum tensor) L energy­ momentum tensor (referred to as the dual energy­momentum tensor in this j Corresponding author

    19. OPEN-ENDED CONFIGURATIONS OF RADIO TELESCOPES

      E-Print Network [OSTI]

      Kreinovich, Vladik

      radio telescopes, devices that use the second observability window of radio waves. Why configurationsOPEN-ENDED CONFIGURATIONS OF RADIO TELESCOPES: A GEOMETRICAL ANALYSIS Vladik Kreinovich, Scott A. The quality of radio astronomical images drastically depends on where we place the radio telescopes. During

    20. Ontological Configuration Management for Wireless Mesh Routers

      E-Print Network [OSTI]

      Touriño, Juan

      Ontological Configuration Management for Wireless Mesh Routers Iv´an D´iaz , Cristian Popi then be managed homogeneously. We chose the configuration of a modular wireless router developed by the Image botanique 54602 Villers-les-Nancy, France Abstract. Wireless mesh networks (WMNs) are a category of wireless

    1. National Ignition Facility Configuration Management Plan

      SciTech Connect (OSTI)

      Cabral, S G; Moore, T L

      2002-10-01

      This Configuration Management Plan (CMP) describes the technical and administrative management process for controlling the National Ignition Facility (NIF) Project configuration. The complexity of the NIF Project (i.e., participation by multiple national laboratories and subcontractors involved in the development, fabrication, installation, and testing of NIF hardware and software, as well as construction and testing of Project facilities) requires implementation of the comprehensive configuration management program defined in this plan. A logical schematic illustrating how the plan functions is provided in Figure 1. A summary of the process is provided in Section 4.0, Configuration Change Control. Detailed procedures that make up the overall process are referenced. This CMP is consistent with guidance for managing a project's configuration provided in Department of Energy (DOE) Order 430.1, Guide PMG 10, ''Project Execution and Engineering Management Planning''. Configuration management is a formal discipline comprised of the following four elements: (1) Identification--defines the functional and physical characteristics of a Project and uniquely identifies the defining requirements. This includes selection of components of the end product(s) subject to control and selection of the documents that define the project and components. (2) Change management--provides a systematic method for managing changes to the project and its physical and functional configuration to ensure that all changes are properly identified, assessed, reviewed, approved, implemented, tested, and documented. (3) Data management--ensures that necessary information on the project and its end product(s) is systematically recorded and disseminated for decision-making and other uses. Identifies, stores and controls, tracks status, retrieves, and distributes documents. (4) Assessments and validation--ensures that the planned configuration requirements match actual physical configurations and approved changes are implemented according to the change requirements documents.

    2. A generalized framework for in-line energy deposition during steady-state Monte Carlo radiation transport

      SciTech Connect (OSTI)

      Griesheimer, D. P. [Bertis Atomic Power Laboratory, P.O. Box 79, West Mifflin, PA 15122 (United States); Stedry, M. H. [Knolls Atomic Power Laboratory, P.O. Box 1072, Schenectady, NY 12301 (United States)

      2013-07-01

      A rigorous treatment of energy deposition in a Monte Carlo transport calculation, including coupled transport of all secondary and tertiary radiations, increases the computational cost of a simulation dramatically, making fully-coupled heating impractical for many large calculations, such as 3-D analysis of nuclear reactor cores. However, in some cases, the added benefit from a full-fidelity energy-deposition treatment is negligible, especially considering the increased simulation run time. In this paper we present a generalized framework for the in-line calculation of energy deposition during steady-state Monte Carlo transport simulations. This framework gives users the ability to select among several energy-deposition approximations with varying levels of fidelity. The paper describes the computational framework, along with derivations of four energy-deposition treatments. Each treatment uses a unique set of self-consistent approximations, which ensure that energy balance is preserved over the entire problem. By providing several energy-deposition treatments, each with different approximations for neglecting the energy transport of certain secondary radiations, the proposed framework provides users the flexibility to choose between accuracy and computational efficiency. Numerical results are presented, comparing heating results among the four energy-deposition treatments for a simple reactor/compound shielding problem. The results illustrate the limitations and computational expense of each of the four energy-deposition treatments. (authors)

    3. Ejecta Particle-Size Measurements in Vacuum and Helium Gas using Ultraviolet In-Line Fraunhofer Holography

      SciTech Connect (OSTI)

      Sorenson, Danny S.; Pazuchanics, Peter; Johnson, Randall P.; Malone, R. M.; Kaufman, M. I.; Tibbitts, A.; Tunnell, T.; Marks, D.; Capelle, G. A.; Grover, M.; Marshall, B.; Stevens, G. D.; Turley, W. D.; LaLone, B.

      2014-06-25

      An Ultraviolet (UV) in-line Fraunhofer holography diagnostic has been developed for making high-resolution spatial measurements of ejecta particles traveling at many mm/?sec. This report will discuss the development of the diagnostic including the high-powered laser system and high-resolution optical relay system. In addition, the system required to reconstruct the images from the hologram and the corresponding analysis of those images to extract particles will also be described. Finally, results from six high-explosive (HE), shock-driven Sn ejecta experiments will be presented. Particle size distributions will be shown that cover most of the ejecta velocities for experiments conducted in a vacuum, and helium gas environments. In addition, a modification has been made to the laser system that produces two laser pulses separated by 6.8 ns. This double-pulsed capability allows a superposition of two holograms to be acquired at two different times, thus allowing ejecta velocities to be measured directly. Results from this double pulsed experiment will be described.

    4. Ejecta Particle-Size Measurements in Vacuum and Helium Gas using Ultraviolet In-Line Fraunhofer Holography

      SciTech Connect (OSTI)

      Sorenson, D. S.; Pazuchanics, P.; Johnson, R.; Malone, R. M.; Kaufman, M. I.; Tibbitts, A.; Tunnell, T.; Marks, D.; Capelle, G. A.; Grover, M.; Marshall, B.; Stevens, G. D.; Turley, W. D.; LaLone, B.

      2014-06-30

      An ultraviolet (UV) in-line Fraunhofer holography diagnostic has been developed for making high-resolution spatial measurements of ejecta particles traveling at many mm/?sec. This report will discuss the development of the diagnostic, including the high-powered laser system and high-resolution optical relay system. In addition, we will also describe the system required to reconstruct the images from the hologram and the corresponding analysis of those images to extract particles. Finally, we will present results from six high-explosive (HE), shock-driven Sn-ejecta experiments. Particle-size distributions will be shown that cover most of the ejecta velocities for experiments conducted in a vacuum, and helium gas environments. In addition, a modification has been made to the laser system that produces two laser pulses separated by 6.8 ns. This double-pulsed capability allows a superposition of two holograms to be acquired at two different times, thus allowing ejecta velocities to be measured directly. Results from this double-pulsed experiment will be described.

    5. An Evaluation of a Dual Coriolis Meter System for In-Line Monitoring of Suspended Solids Concentrations in Radioactive Slurries

      SciTech Connect (OSTI)

      Hylton, T.D.

      2000-09-01

      The U.S. Department of Energy (DOE) has millions of gallons of radioactive liquid and sludge wastes stored in underground tanks at several of its sites. In order to comply with various regulations and to circumvent potential problems associated with tank integrity, these wastes must be retrieved from the tanks, transferred to treatment facilities (or other storage locations), and processed to stable waste forms. The sludge wastes will typically be mobilized by some mechanical means (e.g., mixer pump, submerged jet) and mixed with the respective supernatants to create slurries that can be transferred by pipeline to the desired destination. Depending on the DOE site, these slurries may be transferred up to six miles. Since the wastes are radioactive, it is critically important for the transfers to be made without plugging a pipeline. To reduce such a risk, the relevant properties of the slurry (e.g., density, suspended solids concentration, viscosity, and particle size distribution) should be determined to be within acceptable limits prior to transfer. These properties should also be continuously monitored and controlled within specified limits while the transfer is in progress. The baseline method for determining the transport properties of slurries involves sampling and analysis; however, this method is time-consuming, and costly, and it does not provide real-time information. In addition, personnel who collect and analyze the samples are exposed to radiation. It is also questionable as to whether a laboratory analyst can obtain representative aliquots from the sample jar for these solid-liquid mixtures. The alternative method for determining the transport properties is in-line analysis. An in-line instrument is one that is connected to the process, analyzes the slurry as it flows through or by the instrument, and provides the results within seconds. This instrument can provide immediate feedback to operators so that, when necessary, the operators can respond quickly to counteract conditions that could lead to pipeline pluggage (e.g., backflushing the pipeline with water). One of the highest priorities is to determine the concentration of suspended solids in each of the slurries. In the project described in this report, two Coriolis meters were used simultaneously to create a suspended solids monitoring system that would provide accurate results with high precision. One Coriolis meter was used to measure the density of the slurry, while the other meter was used to measure the density of the carrier fluid (i.e., after filtration to remove the solid particles). The suspended solids concentration was then calculated from the density relationships between the slurry, the carrier fluid, and the dry solid particles. The latter density was determined by laboratory analysis and was assumed to be constant throughout the periods that grab samples were collected.

    6. Tank Waste Remediation Systems (TWRS) Configuration Management Implementation Plan

      SciTech Connect (OSTI)

      WEIR, W.R.

      2000-12-18

      The Tank Waste Configuration Management (TWRS) Configuration Management Implementation Plan descibes the execution of the configuration management (CM) that the contractor uses to manage and integrate its programmatic and functional operations to perform work.

    7. In-line Mach-Zehnder interferometer composed of microtaper and long-period grating in all-solid photonic bandgap fiber

      SciTech Connect (OSTI)

      Wu Zhifang; Liu Yange; Wang Zhi; Han Tingting; Li Shuo; Jiang Meng; Ping Shum, Perry

      2012-10-01

      We report a compact in-line Mach-Zehnder interferometer combining a microtaper with a long-period grating (LPG) in a section of all-solid photonic bandgap fiber. Theoretical and experimental investigations reveal that the interferometer works from the interference between the fundamental core mode and the LP{sub 01} cladding supermodes. The mechanism underlying the mode coupling caused by the microtaper can be attributed to a bandgap-shifting as the fiber diameter is abruptly scaled down. In addition, the interferometer designed to strengthen the coupling ratio of the long-period grating has a promising practical application in the simultaneous measurement of curvature and temperature.

    8. Configuration Interactions Constrained by Energy Density Functionals

      E-Print Network [OSTI]

      B. Alex Brown; Angelo Signoracci; Morten Hjorth-Jensen

      2010-09-24

      A new method for constructing a Hamiltonian for configuration interaction calculations with constraints to energies of spherical configurations obtained with energy-density-functional (EDF) methods is presented. This results in a unified model that reproduced the EDF binding-energy in the limit of single-Slater determinants, but can also be used for obtaining energy spectra and correlation energies with renormalized nucleon-nucleon interactions. The three-body and/or density-dependent terms that are necessary for good nuclear saturation properties are contained in the EDF. Applications to binding energies and spectra of nuclei in the region above 208Pb are given.

    9. Low cost fuel cell diffusion layer configured for optimized anode...

      Office of Scientific and Technical Information (OSTI)

      Patent: Low cost fuel cell diffusion layer configured for optimized anode water management Citation Details In-Document Search Title: Low cost fuel cell diffusion layer configured...

    10. Improved Monitor Design and Configuration for Reducing Reported...

      Office of Environmental Management (EM)

      Improved Monitor Design and Configuration for Reducing Reported Tritium Discharges from the Orphee Research Reactor Improved Monitor Design and Configuration for Reducing Reported...

    11. Main References Braids and Configurations Simplicial Structure and Brunnian braids Boundary Brunnian Braids Main Results Braids, configurations and homotopy groups

      E-Print Network [OSTI]

      Wu, Jie

      Main References Braids and Configurations Simplicial Structure and Brunnian braids Boundary Brunnian Braids Main Results Braids, configurations and homotopy groups Joint with Jingyan Li Jie Wu at Hebei Normal University #12;Main References Braids and Configurations Simplicial Structure and Brunnian

    12. Computational Analysis of Shrouded Wind Turbine Configurations

      E-Print Network [OSTI]

      Alonso, Juan J.

      Computational Analysis of Shrouded Wind Turbine Configurations Aniket C. Aranake Vinod K-dimensional simulations of shrouded wind turbines are performed for selected shroud geometries. The results are compared at the highest wind speed for which the flow over the bare turbine blade stays attached. Flow fields are examined

    13. Multilinear generalized Radon transforms and point configurations

      E-Print Network [OSTI]

      Grafakos, Loukas

      Multilinear generalized Radon transforms and point configurations Loukas Grafakos, Allan Greenleaf, Alex Iosevich and Eyvindur Palsson Abstract. We study multilinear generalized Radon transforms using for the results in [7]. 1. Introduction Linear generalized Radon transforms are operators of the form (1.1) Rf

    14. Configuration management in nuclear power plants

      E-Print Network [OSTI]

      2003-01-01

      Configuration management (CM) is the process of identifying and documenting the characteristics of a facility's structures, systems and components of a facility, and of ensuring that changes to these characteristics are properly developed, assessed, approved, issued, implemented, verified, recorded and incorporated into the facility documentation. The need for a CM system is a result of the long term operation of any nuclear power plant. The main challenges are caused particularly by ageing plant technology, plant modifications, the application of new safety and operational requirements, and in general by human factors arising from migration of plant personnel and possible human failures. The IAEA Incident Reporting System (IRS) shows that on average 25% of recorded events could be caused by configuration errors or deficiencies. CM processes correctly applied ensure that the construction, operation, maintenance and testing of a physical facility are in accordance with design requirements as expressed in the d...

    15. Multilinear generalized Radon transforms and point configurations

      E-Print Network [OSTI]

      Grafakos, Loukas; Iosevich, Alex; Palsson, Eyvindur

      2012-01-01

      We study multilinear generalized Radon transforms using a graph-theoretic paradigm that includes the widely studied linear case. These provide a general mechanism to study Falconer-type problems involving $(k+1)$-point configurations in geometric measure theory, with $k \\ge 2$, including the distribution of simplices, volumes and angles determined by the points of fractal subsets $E \\subset {\\Bbb R}^d$, $d \\ge 2$. If $T_k(E)$ denotes the set of noncongruent $(k+1)$-point configurations determined by $E$, we show that if the Hausdorff dimension of $E$ is greater than $d-\\frac{d-1}{2k}$, then the ${k+1 \\choose 2}$-dimensional Lebesgue measure of $T_k(E)$ is positive. This compliments previous work on the Falconer conjecture (\\cite{Erd05} and the references there), as well as work on finite point configurations \\cite{EHI11,GI10}. We also give applications to Erd\\"os-type problems in discrete geometry and a fractal regular value theorem, providing a multilinear framework for the results in \\cite{EIT11}.

    16. The inline virtual impactor 

      E-Print Network [OSTI]

      Seshadri, Satyanarayanan

      2009-05-15

      for serving as my dissertation committee members, for their time and effort. The Aerosol Lab was a wonderful place to work and study at and part of what makes the lab is the people whom you interact with everyday. I would like to express my strong.... vii This work was supported in part by the Edgewood Chemical Biological Center of the U.S. Army Research, Development, and Engineering Command under Contract DAAD13-03-C-0050. I would like to thank Drs. Edward W. Stuebing and Jerold R. Bottiger...

    17. Vertical Electrical Sounding Configurations | Open Energy Information

      Open Energy Info (EERE)

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairexVert Investment Group Jump to:Configurations

    18. HotSpot Software Configuration Management Plan

      SciTech Connect (OSTI)

      Walker, H; Homann, S G

      2009-03-12

      This Software Configuration Management Plan (SCMP) describes the software configuration management procedures used to ensure that the HotSpot dispersion model meets the requirements of its user base, which includes: (1) Users of the PC version of HotSpot for consequence assessment, hazard assessment and safety analysis calculations; and (2) Users of the NARAC Web and iClient software tools, which allow users to run HotSpot for consequence assessment modeling These users and sponsors of the HotSpot software and the organizations they represent constitute the intended audience for this document. This plan is intended to meet Critical Recommendations 1 and 3 from the Software Evaluation of HotSpot and DOE Safety Software Toolbox Recommendation for inclusion of HotSpot in the Department of Energy (DOE) Safety Software Toolbox. HotSpot software is maintained for the Department of Energy Office of Emergency Operations by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL). An overview of HotSpot and NARAC are provided.

    19. Rigid-rotor, field-reversed configuration

      SciTech Connect (OSTI)

      Conti, F., E-mail: conti@df.unipi.it; Giammanco, F. [Physics Department “E. Fermi,” University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy) [Physics Department “E. Fermi,” University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Plasma Diagnostics and Technologies Ltd., Via Giuntini 63, 56023 Navacchio (PI) (Italy); Wessel, F. J.; Binderbauer, M. W.; Bolte, N.; Morehouse, M.; Qerushi, A.; Rahman, H. U.; Roche, T.; Slepchenkov, M. [Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)] [Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)

      2014-02-15

      The radial profiles, n(r), B{sub z}(r), and E{sub r}(r), for a Flux-Coil (“inductively driven”), Field-Reversed Configuration (FC-FRC) are measured and compared to the predictions of the Rigid-Rotor Model (RRM), which is an analytic, one-dimensional, time-independent, equilibrium description for the FRC. Injectors mounted on both ends of the confinement vessel provide a pre-fill plasma. Coaxial coils mounted outside the vacuum boundaries of the annular-confinement vessel accelerate the plasma and produce the FRC. The density profile is measured by laser interferometry, the magnetic-field profile using an in-situ probe array, and the electric-field profile using an in-situ, floating-probe array. Free parameters for each profile are measured, which also allow other intrinsic-plasma parameters to be determined, using computer-fit algorithms: null radius, radial thickness, plasma temperature, rotation frequencies, the latter of which are independently verified by spectroscopy. All radial profiles agree with the RRM predictions, for the experimental configuration, parameter regime, and specified-time interval studied here.

    20. Context Based Configuration Management Yuri Gawdiak Mohana Gurram

      E-Print Network [OSTI]

      Maluf, David A.

      management for daily issues. However, strategic management and decisions also have a requirement strategic planning and decision making environments. The Context Based Configuration Management (CBCM1 Context Based Configuration Management Yuri Gawdiak Mohana Gurram NASA, ARMD RIACS, NASA, ARC 300

    1. OUTLOOK 2007 -Configuration POP 1. Slectionnez le menu Outils

      E-Print Network [OSTI]

      Charette, André

      OUTLOOK 2007 - Configuration POP 1. Sélectionnez le menu Outils 2. Sélectionnez le menu Paramètres. Cliquez sur le bouton Suivant 20. Cliquez sur le bouton Terminer. #12;OUTLOOK 2007 - Configuration IMAP 1

    2. Guidelines and Metrics for Configurable and Sustainable Architectural Knowledge Modelling

      E-Print Network [OSTI]

      Brezany, Peter

      Guidelines and Metrics for Configurable and Sustainable Architectural Knowledge Modelling ABSTRACT erosion, architecture knowledge, technical sustainability, technical debt. 1. INTRODUCTION Architectural to achieve architecture sustainability. Our main contributions of this paper is a configurable meta

    3. Classifier based on support vector machine for JET plasma configurations

      SciTech Connect (OSTI)

      Dormido-Canto, S.; Farias, G.; Dormido, R.; Sanchez, J.; Duro, N.; Vargas, H.

      2008-10-15

      The last flux surface can be used to identify the plasma configuration of discharges. For automated recognition of JET configurations, a learning system based on support vector machines has been developed. Each configuration is described by 12 geometrical parameters. A multiclass system has been developed by means of the one-versus-the-rest approach. Results with eight simultaneous classes (plasma configurations) show a success rate close to 100%.

    4. Mining Configurable Process Models from Collections of Event Logs

      E-Print Network [OSTI]

      van der Aalst, Wil

      towards the discovery of a configurable process model based on a collection of event logs. In this paper related work on process discovery, configurable process models and current model merging techniquesMining Configurable Process Models from Collections of Event Logs J.C.A.M. Buijs, B.F. van Dongen

    5. Review of field-reversed configurations

      SciTech Connect (OSTI)

      Steinhauer, Loren C. [Department of Aeronautics and Astronautics, University of Washington, Seattle, Washington 98195 (United States)

      2011-07-15

      This review addresses field-reversed configurations (FRCs), which are compact-toroidal magnetic systems with little or no toroidal field and very high {beta} (ratio of plasma pressure to magnetic pressure). Although enthusiasm for the FRC has primarily been driven by its potential for an attractive fusion reactor, this review focuses on the physics rather than on technological or engineering aspects. Major advances in both theory and experiment have taken place since the previous comprehensive FRC review in 1988. Even so many questions remain. In particular, even though FRC experiments have exhibited remarkable stability, how well this extrapolates to larger systems remains unresolved. The review considers FRCs under familiar topical categories: equilibrium, global stability, self-organization, transport, formation, and sustainment.

    6. Vehicle drive module having improved cooling configuration

      DOE Patents [OSTI]

      Radosevich, Lawrence D.; Meyer, Andreas A.; Kannenberg, Daniel G.; Kaishian, Steven C.; Beihoff, Bruce C.

      2007-02-13

      An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

    7. Equilibrium Configurations of Cantilever under Terminal Loads

      E-Print Network [OSTI]

      Milan Batista

      2013-03-27

      The paper provides an exact analytical solution for equilibrium configurations of cantilever rod subject to inclined force and torque acting on its free end. The solution is given in terms of Jacobi elliptical functions and illustrated by several numerical examples and several graphical presentations of shapes of deformed cantilever. Possible forms of cantilever underlying elastica are discussed in details and various simple formulas are given for calculation of characteristic dimensions of elastica. For the case when cantilever is subject only to applied force four load conditions are discussed: follower load problem, load determination problem, conservative load problem and rotational load problem. For all the cases the formulas or effective procedure for solution is given.

    8. Generator configuration for solid oxide fuel cells

      DOE Patents [OSTI]

      Reichner, Philip (Plum Boro, PA)

      1989-01-01

      Disclosed are improvements in a solid oxide fuel cell generator 1 having a multiplicity of electrically connected solid oxide fuel cells 2, where a fuel gas is passed over one side of said cells and an oxygen-containing gas is passed over the other side of said cells resulting in the generation of heat and electricity. The improvements comprise arranging the cells in the configuration of a circle, a spiral, or folded rows within a cylindrical generator, and modifying the flow rate, oxygen concentration, and/or temperature of the oxygen-containing gases that flow to those cells that are at the periphery of the generator relative to those cells that are at the center of the generator. In these ways, a more uniform temperature is obtained throughout the generator.

    9. Method and apparatus configured for identification of a material

      DOE Patents [OSTI]

      Slater, John M. (Idaho Falls, ID); Crawford, Thomas M. (Idaho Falls, ID)

      2000-01-01

      The present invention includes an apparatus configured for identification of a material, and methods of identifying a material. One embodiment of the invention provides an apparatus including a first region configured to receive a first sample, the first region being configured to output a first spectrum corresponding to the first sample and responsive to exposure of the first sample to radiation; a modulator configured to modulate the first spectrum according to a first frequency; a second region configured to receive a second sample, the second region being configured to output a second spectrum corresponding to the second sample and responsive to exposure of the second sample to the modulated first spectrum; and a detector configured to detect the second spectrum having a second frequency greater than the first frequency.

    10. SAPHIRE 8 Software Configuration Management Plan

      SciTech Connect (OSTI)

      Curtis Smith

      2010-01-01

      The INL software developers use version control for both the formally released SAPHIRE versions, as well as for source code. For each formal release of the software, the developers perform an acceptance test: the software must pass a suite of automated tests prior to official release. Each official release of SAPHIRE is assigned a unique version identifier. The release is bundled into a standard installation package for easy and consistent set-up by individual users. Included in the release is a list of bug fixes and new features for the current release, as well as a history of those items for past releases. Each formal release of SAPHIRE will have passed an acceptance test. In addition to assignment of a unique version identifier for an official software release, each source code file is kept in a controlled library. Source code is a collection of all the computer instructions written by developers to create the finished product. The library is kept on a server, where back-ups are regularly made. This document describes the configuration management approach used as part of the SAPHIRE development.

    11. A high performance field-reversed configuration

      SciTech Connect (OSTI)

      Binderbauer, M. W.; Tajima, T.; Steinhauer, L. C.; Garate, E.; Tuszewski, M.; Smirnov, A.; Gota, H.; Barnes, D.; Deng, B. H.; Thompson, M. C.; Trask, E.; Yang, X.; Putvinski, S.; Rostoker, N.; Andow, R.; Aefsky, S.; Bolte, N.; Bui, D. Q.; Ceccherini, F.; Clary, R.; and others

      2015-05-15

      Conventional field-reversed configurations (FRCs), high-beta, prolate compact toroids embedded in poloidal magnetic fields, face notable stability and confinement concerns. These can be ameliorated by various control techniques, such as introducing a significant fast ion population. Indeed, adding neutral beam injection into the FRC over the past half-decade has contributed to striking improvements in confinement and stability. Further, the addition of electrically biased plasma guns at the ends, magnetic end plugs, and advanced surface conditioning led to dramatic reductions in turbulence-driven losses and greatly improved stability. Together, these enabled the build-up of a well-confined and dominant fast-ion population. Under such conditions, highly reproducible, macroscopically stable hot FRCs (with total plasma temperature of ?1?keV) with record lifetimes were achieved. These accomplishments point to the prospect of advanced, beam-driven FRCs as an intriguing path toward fusion reactors. This paper reviews key results and presents context for further interpretation.

    12. Blank fire configuration for automatic pistol

      DOE Patents [OSTI]

      Teague, Tommy L. (Albuquerque, NM)

      1990-01-01

      A pistol configured to fire blank cartridges includes a modified barrel with a breech portion connected to an aligned inner sleeve. Around the inner sleeve, there is disposed an outer sleeve having a vent therein through which the cartridge discharges. The breech portion is connected to a barrel anchor to move backward in a slight arc when the pistol is fired. A spring retention rod projects from the barrel anchor and receives a shortened recoil spring therearound which recoil spring has one end abutting a stop on the barrel anchor and the other end in abutment with the end of a spring retaining cup. The spring retaining cup is engaged by a flange projecting from a slide so that when the pistol is fired, the slide moves rearwardly against the compression of the spring to eject the spent cartridge and then moves forwardly under the urging of the spring to load a fresh cartridge into the breech portion. The spring then returns all of the slidable elements to their initial position so that the pistol may again be fired.

    13. Configuration Interaction with Antisymmetrized Geminal Powers

      E-Print Network [OSTI]

      Uemura, Wataru; Sugino, Osamu

      2015-01-01

      To avoid the combinatorial computational cost of configuration interaction (CI), we have previously introduced the symmetric tensor decomposition CI (STD-CI) method, where we take advantage of the antisymmetric nature of the electronic wave function and express the CI coefficients compactly as a series of Kronecker product states (STD series) [W. Uemura and O. Sugino, Phys. Rev. Lett. 109, 253001 (2012)]. Here we extend the variational degrees of freedom by using different molecular orbitals for different terms in the STD series. This scheme is equivalent to the linear combination of the Hartree-Fock-Bogoliubov state or the antisymmetrized geminal powers (AGP). The total energy converges very rapidly within 0.72 $\\mu$Hartree taking only 10 terms for the water molecule, and the convergence is likewise fast for Hubbard tetramers. The computational cost scales as the fifth power of the number of electrons and the square of the number of terms in the STD series, indicating the promise of this AGP-based scheme for...

    14. Economizing the LBNE configuration with current experiments

      E-Print Network [OSTI]

      Monojit Ghosh; Srubabati Goswami; Sushant K. Raut

      2014-12-04

      The LBNE superbeam experiment in Fermilab is one of the proposed next generation neutrino facilities. Its aims include measuring the unknown neutrino oscillation parameters -- the neutrino mass hierarchy, the octant of the mixing angle $\\theta_{23}$ and the CP violating phase $\\delta_{CP}$. The current and upcoming experiments T2K, NOvA and ICAL@INO will also be collecting data for the same measurements. In this paper, we explore the sensitivity reach of LBNE in combination with these other experiments. We evaluate the least exposure required by LBNE to determine the above three unknown parameters with reasonable confidence. We find that for each case, the inclusion of data from T2K, NOvA and ICAL@INO help to achieve the same sensitivity with a reduced exposure from LBNE thereby helping to economize the configuration. We also quantify the effect of the proposed near detector on systematic errors and study the consequent improvement in sensitivity. We also examine the role played by the second oscillation cycle in furthering the physics reach of LBNE. Finally, we optimize the neutrino-antineutrino running of LBNE.

    15. Gauge Configurations for Lattice QCD from The Gauge Connection

      DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

      The Gauge Connection is an experimental archive for lattice QCD and a repository of gauge configurations made freely available to the community. Contributors to the archive include the Columbia QCDSP collaboration, the MILC collaboration, and others. Configurations are stored in QCD archive format, consisting of an ASCII header which defines various parameters, followed by binary data. NERSC has also provided some utilities and examples that will aid users in handling the data. Users may browse the archive, but are required to register for a password in order to download data. Contents of the archive are organized under four broad headings: Quenched (more than 1200 configurations); Dynamical, Zero Temperature (more than 300 configurations); MILC Improved Staggered Asqtad Lattices (more than 7000 configurations); and Dynamical, Finite Temperature (more than 1200 configurations)

    16. On Static n-body Configurations in Relativity

      E-Print Network [OSTI]

      Robert Beig; Richard M. Schoen

      2009-03-08

      The static n-body problem of General Relativity states that there are, under a reasonable energy condition, no static $n$-body configurations for $n > 1$, provided the configuration of the bodies satisfies a suitable separation condition. In this paper we solve this problem in the case that there exists a closed, noncompact, totally geodesic surface disjoint from the bodies. This covers the situation where the configuration has a reflection symmetry across a noncompact surface disjoint from the bodies.

    17. Concealed configuration mixing and shape coexistence in the platinum nuclei

      SciTech Connect (OSTI)

      Garcia-Ramos, J. E.; Hellemans, V.; Heyde, K.

      2012-10-20

      The role of configuration mixing in the Pt region is investigated. The nature of the ground state changes smoothly, being spherical around mass A{approx} 174 and A{approx} 192 and deformed around the mid-shell N= 104 region. Interacting Boson Model with configuration mixing calculations are presented for deformations and isotope shifts. The assumption of the existence of two configurations with very different deformation provides a simple framework to explain the observed isotope shifts systematics.

    18. Battery Choices for Different Plug-in HEV Configurations (Presentation)

      SciTech Connect (OSTI)

      Pesaran, A.

      2006-07-12

      Presents battery choices for different plug-in hybrid electric vehicle (HEV) configurations to reduce cost and to improve performance and life.

    19. Configuration of ripple domains and their topological defects...

      Office of Scientific and Technical Information (OSTI)

      their topological defects formed under local mechanical stress on hexagonal monolayer graphene Citation Details In-Document Search Title: Configuration of ripple domains and their...

    20. Inductrack III configuration--a maglev system for high loads...

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

      track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that...

    1. INDUCTRACK III CONFIGURATION - A MAGLEV SYSTEM FOR HIGH LOADS...

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

      track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that...

    2. Vertical Electrical Sounding Configurations At Mt Princeton Hot...

      Open Energy Info (EERE)

      Vertical Electrical Sounding Configurations At Mt Princeton Hot Springs Geothermal Area (Zohdy, Et Al., 1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

    3. Ideal Configuration For Nanoscale Solar Cells - Energy Innovation...

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

      Ideal Configuration For Nanoscale Solar Cells Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryThe standard design of excitonic...

    4. ARM: Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

      DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

      Yan Shi; Laura Riihimaki

      1994-01-07

      Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

    5. ARM: Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

      DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

      Yan Shi; Laura Riihimaki

      Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

    6. Magnetic reconnection configurations and particle acceleration in solar flares

      E-Print Network [OSTI]

      Chen, P. F.

      types of solar flares. Upper panel: two-ribbon flares; Lower panel: compact flares. The color showsMagnetic reconnection configurations and particle acceleration in solar flares P. F. Chen, W. J space under different magnetic configurations. Key words: solar flares, magnetic reconnection, particle

    7. ForestFirewalls: Getting Firewall Configuration Right in Critical Networks

      E-Print Network [OSTI]

      Roughan, Matthew

      in Supervisory Control and Data Ac- quisition (SCADA) networks. These networks control the distributed assets-level ap- proach to configuring SCADA firewalls. Our goals are three- fold. We aim to: first, decouple network to demonstrate its effectiveness in simplifying and automating the configuration of SCADA

    8. A Configurable Reference Modelling Language1 M. Rosemanna

      E-Print Network [OSTI]

      van der Aalst, Wil

      Systems, Configuration, Event-Driven Process Chains 1 This research project is financially supported by SAP Research. #12;- 2 - 1 Introduction Enterprise Systems (ES) offer business solutions for typical language used in the by far most successful Enterprise System (SAP) with configurable elements. Thus

    9. DIPPED MAGNETIC FIELD CONFIGURATIONS ASSOCIATED WITH FILAMENTS AND BARBS

      E-Print Network [OSTI]

      Priest, Eric

      DIPPED MAGNETIC FIELD CONFIGURATIONS ASSOCIATED WITH FILAMENTS AND BARBS D. H. MACKAY, A. W. It is assumed that the field configurations are suitable to represent filaments if they contain magnetic dips have the correct left-bearing/right-bearing orientation for dextral/sinistral filaments. When

    10. SafeConnect | Home Router Configuration This document provides configuration instructions to prevent home routers from functioning as

      E-Print Network [OSTI]

      California at Santa Cruz, University of

      ; keep the power plugged in. 2. Remain connected to the router via wireless, log into the admin consoleSafe·Connect | Home Router Configuration This document provides configuration instructions to prevent home routers from functioning as Network Address Translation (NAT) devices. #12;Home Router

    11. On the configuration space topology in general relativity

      E-Print Network [OSTI]

      Domenico Giulini

      1993-01-25

      The configuration-space topology in canonical General Relativity depends on the choice of the initial data 3-manifold. If the latter is represented as a connected sum of prime 3-manifolds, the topology receives contributions from all configuration spaces associated to each individual prime factor. There are by now strong results available concerning the diffeomorphism group of prime 3-manifolds which are exploited to examine the topology of the configuration spaces in terms of their homotopy groups. We explicitly show how to obtain these for the class of homogeneous spherical primes, and communicate the results for all other known primes except the non-sufficiently large ones of infinite fundamental group.

    12. Remote Performance Monitoring (RPM) Chandra Krintz and Selim Gurun

      E-Print Network [OSTI]

      Krintz, Chandra

      components include a set of high- end tools to monitor the target microcomputer. The software tools include

    13. Incremental adaptation to yaw head movements during 30 RPM centrifugation

      E-Print Network [OSTI]

      Elias, Paul Z. (Paul Ziad)

      2006-01-01

      Artificial Gravity (AG) provided by short-radius centrifugation is a promising countermeasure against the harmful physiological effects of prolonged weightlessness. However, the vestibular stimulus associated with making ...

    14. NREL: Energy Analysis - The Resource Planning Model (RPM)

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12 NationalNOHydrogenWebmasterRelatedBookmark

    15. Healthcare Facility Location and Capacity Configuration under Stochastic Demand 

      E-Print Network [OSTI]

      Han, Xue

      2014-12-18

      This dissertation addresses two topics. The first topic is strategic dynamic supply chain reconfiguration (DSCR) problem, in which the proposed capacity configuration network is employed in the second topic: healthcare facility location and capacity...

    16. Shape-Sensitive Configurational Descriptions of Building Plans

      E-Print Network [OSTI]

      Rashid, Mahbub

      2012-01-01

      plans as configurations of spaces taking into consideration the elements of shape explicitly. First, the traditional space syntax techniques are applied to a more shapesensitive partition of a plan in order to find out if these techniques would reveal...

    17. High Energy Electron Confinement in a Magnetic Cusp Configuration

      E-Print Network [OSTI]

      Park, Jaeyoung; Sieck, Paul E; Offermann, Dustin T; Skillicorn, Michael; Sanchez, Andrew; Davis, Kevin; Alderson, Eric; Lapenta, Giovanni

      2014-01-01

      We report experimental results validating the concept that plasma confinement is enhanced in a magnetic cusp configuration when beta (plasma pressure/magnetic field pressure) is order of unity. This enhancement is required for a fusion power reactor based on cusp confinement to be feasible. The magnetic cusp configuration possesses a critical advantage: the plasma is stable to large scale perturbations. However, early work indicated that plasma loss rates in a reactor based on a cusp configuration were too large for net power production. Grad and others theorized that at high beta a sharp boundary would form between the plasma and the magnetic field, leading to substantially smaller loss rates. The current experiment validates this theoretical conjecture for the first time and represents critical progress toward the Polywell fusion concept which combines a high beta cusp configuration with an electrostatic fusion for a compact, economical, power-producing nuclear fusion reactor.

    18. Baffle Configuration Effects on Dynamo Self-Generation

      E-Print Network [OSTI]

      Anlage, Steven

      Baffle Configuration Effects on Dynamo Self-Generation Understanding the Dynamics of the Earths Earth, an example of a self generating magnetic field. Self Generation, what helps: High magnetic

    19. Adsorption configurations of two nitrogen atoms on graphene

      SciTech Connect (OSTI)

      Rani, Babita, E-mail: babitabaghla15@gmail.com [Department of Physics, Punjabi University, Patiala- 147 002 and Department of Physics, Panjab University, Chandigarh- 160 014 (India); Jindal, V. K.; Dharamvir, Keya [Department of Physics, Panjab University, Chandigarh- 160 014 (India)

      2014-04-24

      We present calculations for different possible configurations of two nitrogen adatoms on graphene using the code VASP, based on Density Functional Theory (DFT). Two N atoms adsorbed on the graphene sheet can share a bond in two ways. They take positions either just above two adjacent carbon atoms or they form a bridge across opposite bonds of a hexagon in the graphene sheet. Both these configurations result into structural distortion of the sheet. Another stable configuration involving two N atoms consists of an N{sub 2} molecule which is physisorbed at a distance 3.69 Å on the graphene sheet. Two N atoms can also be adsorbed on alternate bridge sites of neighbouring hexagons of graphene. This configuration again leads to distortion of the sheet in perpendicular direction.

    20. A study of neutron-deuteron scattering in configuration space

      E-Print Network [OSTI]

      V. M. Suslov; M. A. Braun; I. Filikhin; B. Vlahovic

      2006-10-09

      A new computational method for solving the configuration-space Faddeev equations for the breakup scattering problem has been applied to nd scattering both below and above the two-body threshold.

    1. Providing Configuration Management Support in Software Engineering Environments

      E-Print Network [OSTI]

      Han, Jun

      Providing Configuration Management Support in Software Engineering Environments Jun Han Peninsula development project. A software engineering environment should not only pro- vide support for software products and software processes in general, but also pay attention to high level software engineering

    2. V-120: EMC Smarts Network Configuration Manager Java RMI Access...

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

      EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control PLATFORM: Version(s): prior to 9.2 ABSTRACT: Two vulnerabilities were...

    3. Reliability comparison of various nuclear propulsion configurations for Mars mission

      SciTech Connect (OSTI)

      Segna, D.R. [USDOE Richland Operations Office, WA (United States); Dagle, J.E. [Pacific Northwest Lab., Richland, WA (United States); Lyon, W.F. III [Westinghouse Hanford Co., Richland, WA (United States)

      1992-01-01

      Currently, trade-offs are being made among the various propulsion systems being considered for the Space Exploration Initiative (SEI) missions. It is necessary to investigate the reliability aspects as well as the efficiency, mass savings, and experience characteristics of the various configurations. Reliability is a very important factor for the SEI missions because of the long duration and because problems will be fixed onboard. The propulsion options that were reviewed consist of nuclear thermal propulsion (NTP), nuclear electric propulsion (NEP) and various configurations of each system. There were four configurations developed for comparison with the NTP as baselined in the Synthesis (1991): (1) NEP, (2) hybrid NEP/NTP, (3) hybrid with power beaming, and (4) NTP upper stage on the heavy lift launch vehicle (HLLV). The comparisons were based more or less on a qualitative review of complexity, stress levels and operations for each of the four configurations. Each configuration included a pressurized NEP and an NTP ascent stage propulsion system for the Mars mission.

    4. Stability and confinement of spheromaks and field-reversed configurations

      SciTech Connect (OSTI)

      Quinn, W.E.

      1982-01-01

      The formation, confinement and stability of two types of compact toroids, spheromaks and field reversed configurations (FRC), are reviewed. Spheromaks, which contain both toroidal and poloidal magnetic fields, have been formed with magnetized coaxial plasma guns, by a combination of Z- and theta-pinch techniques and by an electrodeless slow induction technique, and trapped in both prolate and oblate flux conservers. As predicted by theory, the prolate configuration is unstable to the tilt mode, but the oblate configuration with a conducting wall is stable. Configuration lifetimes of up to 0.8 ms are observed. The FRC is a high-beta, highly prolate compact toroid formed with field-reversed theta-pinch techniques and having purely poloidal magnetic field. Theory predicts unstable fluting and internal tilting modes, but they are not observed experimentally. Configurations with high densities approx. 10/sup 15/ cm/sup -3/ and with lifetimes of 50 to 120 ..mu..s are terminated by an n=2 rotational mode of instability.

    5. Of fishes and birthdays: Efficient estimation of polymer configurational entropies

      E-Print Network [OSTI]

      Nemenman, Ilya; Strauss, Charlie E

      2015-01-01

      We present an algorithm to estimate the configurational entropy $S$ of a polymer. The algorithm uses the statistics of coincidences among random samples of configurations and is related to the catch-tag-release method for estimation of population sizes, and to the classic "birthday paradox". Bias in the entropy estimation is decreased by grouping configurations in nearly equiprobable partitions based on their energies, and estimating entropies separately within each partition. Whereas most entropy estimation algorithms require $N\\sim 2^{S}$ samples to achieve small bias, our approach typically needs only $N\\sim \\sqrt{2^{S}}$. Thus the algorithm can be applied to estimate protein free energies with increased accuracy and decreased computational cost.

    6. Safety analysis of the MYRRHA facility with different core configurations

      SciTech Connect (OSTI)

      Arien, B.; Heusdains, S.; Alt Abderrahim, H.; Malambu, E. [SCK-CEN, Boeretang 200, B-2400 Mol (Belgium)

      2006-07-01

      In the framework of the IAEA Coordinated Research Project on 'Studies of Innovative Reactor Technology Options for Effective Incineration of Radioactive Waste', a benchmark exercise was undertaken to analyse the behaviour of the MYRRHA facility in various accidental conditions. The transients were simulated by means of the RELAP and SITHER codes and the following set of accident scenarios was considered: loss of flow, loss of heat sink, overpower transient, overcooling and partial blockage of a subassembly. In addition, those accidents were simulated in two different situations depending on whether the proton beam is cut off (protected case) or not (unprotected case). In the IAEA benchmark two subcritical core configurations are considered: a typical core configuration composed only of (U-Pu)O{sub 2} MOX fuel assemblies and another one including additional U-free minor actinides fuel assemblies. The present paper summarized the main results obtained with the first core configuration. (authors)

    7. Voltage-matched configurations for multijunction solar cells

      SciTech Connect (OSTI)

      Gee, J.M.

      1987-01-01

      Novel methods for interconnecting the subcells of a multijunction solar cell are investigated. The subcells are connected in parallel in these new methods. The bandgaps of the subcells must be selected for matched voltages when operated in parallel. We refer to multijunction solar cells with the subcells connected in parallel as having a voltage-matched configuration. Computer analyses of multijunction solar cells with a voltage-matched configuration and with series-connected subcells were performed. Roughly, the same performance with either approach for a multijunction cell with optimized bandgaps was found. Several advantages for the voltage-matched configuration relative to multijunction solar cells with series-connected subcells were identified, including wider selection of bandgaps for optimal performance, less sensitivity to radiation damage, and less sensitivity to spectral variations.

    8. An Exact Fluctuating 1/2-BPS Configuration

      E-Print Network [OSTI]

      Bellucci, Stefano

      2009-01-01

      This work explores the role of thermodynamic fluctuations in the two parameter giant and superstar configurations characterized by an ensemble of arbitrary liquid droplets or irregular shaped fuzzballs. Our analysis illustrates that the chemical and state-space geometric descriptions exhibit an intriguing set of exact pair correction functions and the global correlation lengths. The first principle of statistical mechanics shows that the possible canonical fluctuations may precisely be ascertained without any approximation. Interestingly, our intrinsic geometric study exemplifies that there exist exact fluctuating 1/2-BPS statistical configurations which involve an ensemble of microstates describing the liquid droplets or fuzzballs. The Gaussian fluctuations over an equilibrium chemical and state-space configurations accomplish a well-defined, non-degenerate, curved and regular intrinsic Riemannian manifolds for all physically admissible domains of black hole parameters. An explicit computation demonstrates t...

    9. Evaluation Of Saltstone Mixer Paddle Configuration For Improved Wear Resistance

      SciTech Connect (OSTI)

      Reigel, M. M.; Fowley, M. D.; Pickenheim, B. R.

      2012-09-27

      A soft metal with low wear resistance (6000 series aluminum), was used to minimize run time while maximizing wear rate. Two paddle configurations were tested, with the first four paddles after the augers replaced by the wear paddles. The first configuration was all flat paddles, with the first paddle not aligned with the augers and is consistent with present SPF mixer. The second configuration had helical paddles for the first three stages after the augers and a flat paddle at the fourth stage. The first helical paddle was aligned with the auger flight for the second configuration. The all flat paddle configuration wear rate was approximately double the wear rate of the helical paddles for the first two sets of paddles after the augers. For both configurations, there was little or no wear on the third and fourth paddle sets based on mass change, indicating that the fully wetted premix materials are much less abrasive than the un-wetted or partially wetted premix. Additionally, inspection of the wear surface of the paddles at higher magnification showed the flat paddles were worn much more than the helical and is consistent with the wear rates. Aligning the auger discharge flight with the first set of helical paddles was effective in reducing the wear rate as compared to the flat paddle configuration. Changing the paddle configuration from flat to helical resulted in a slight increase in rheological properties. Although, both tests produced grout-like material that is within the processing rage of the SPF, it should be noted that cement is not included in the premix and water was used rather than salt solution, which does affect the rheology of the fresh grout. The higher rheological properties from the helical wear test are most likely due to the reduced number of shearing paddles in the mixer. In addition, there is variation in the rheological data for each wear test. This is most likely due to the way that the dry feeds enter the mixer from the dry feeder. The premix is discharged from the hopper in an unsteady fashion, where irregular sized clumps were observed leaving the discharge of the auger, though the auger speed is constant.

    10. Final Land Configuration for the Rocky Flats Environmental Technology Site

      SciTech Connect (OSTI)

      Stegen, R. L.; Kapinos, J. M.; Wehner, J. P.; Snyder, B.; Davis, R. W.

      2006-07-01

      Closure of the Rocky Flats Environmental Technology Site (RFETS) has been completed. The future land use of the site is designated as a National Wildlife Refuge. A joint effort between Kaiser-Hill, Department of Energy, U.S. Fish and Wildlife Service, Environmental Protection Agency, State of Colorado, and other stakeholders was initiated to provide direction for developing the final land configuration. Through early identification of issues and developing mutually agreeable solutions, the final land configuration of the site was successfully completed. (authors)

    11. Method for making precisely configured flakes useful in optical devices

      DOE Patents [OSTI]

      Trajkovska-Petkoska, Anka (Rochester, NY); Jacobs, Stephen D. (Pittsford, NY); Kosc, Tanya Z. (Rochester, NY); Marshall, Kenneth L. (Rochester, NY)

      2007-07-03

      Precisely configured, especially of geometric shape, flakes of liquid crystal material are made using a mechanically flexible polymer mold with wells having shapes which are precisely configured by making the mold with a photolithographically manufactured or laser printed master. The polymer liquid crystal is poured into the wells in the flexible mold. When the liquid crystal material has solidified, the flexible mold is bent and the flakes are released and collected for use in making an electrooptical cell utilizing the liquid crystal flakes as the active element therein.

    12. Inductrack III configuration--a maglev system for high loads

      DOE Patents [OSTI]

      Post, Richard F

      2013-11-12

      Inductrack III configurations are suited for use in transporting heavy freight loads. Inductrack III addresses a problem associated with the cantilevered track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that it would be capable of supporting very heavy loads. In Inductrack III, the levitating portion of the track can be supported uniformly from below, as the levitating Halbach array used on the moving vehicle is a single-sided one, thus does not require the cantilevered track as employed in Inductrack II.

    13. Equilibrium configurations of nematic liquid crystals on a torus

      E-Print Network [OSTI]

      Antonio Segatti; Michael Snarski; Marco Veneroni

      2014-06-13

      The topology and the geometry of a surface play a fundamental role in determining the equilibrium configurations of thin films of liquid crystals. We propose here a theoretical analysis of a recently introduced surface Frank energy, in the case of two-dimensional nematic liquid crystals coating a toroidal particle. Our aim is to show how a different modeling of the effect of extrinsic curvature acts as a selection principle among equilibria of the classical energy, and how new configurations emerge. In particular, our analysis predicts the existence of new stable equilibria with complex windings.

    14. Fluid Flow Estimation Through Integration of Physical Flow Configurations

      E-Print Network [OSTI]

      Garbe, Christoph S.

      Fluid Flow Estimation Through Integration of Physical Flow Configurations Christoph S. Garbe IWR, University of Heidelberg Christoph.Garbe@iwr.uni-heidelberg.de Abstract. The measurement of fluid flows is an emerging field for op- tical flow computation. In a number of such applications, a tracer is visualized

    15. Power-Efficient Radio Configuration in Fixed Broadband Wireless Networks

      E-Print Network [OSTI]

      Bermond, Jean-Claude

      configuration; power-efficiency; multicommodity flow 1 #12;1 Introduction The increasing demand for high networks, particularly in emerg- ing countries and remote locations where classical copper or fiber lines are too costly or simply unavailable to cope with this demand [1, 2]. In this scenario, network operators

    16. Maintaining the closed magneticfieldline topology of a fieldreversed configuration (FRC)

      E-Print Network [OSTI]

      not significantly change the FRC's closed field structure. The FRC is an example of a self­organized plasma wherein the present field­line closure analysis. The study of field­line closure for FRC­like plasmas with transverse1 Maintaining the closed magnetic­field­line topology of a field­reversed configuration (FRC

    17. NUMERICAL STUDY OF TILT STABILITY OF PROLATE FIELDREVERSED CONFIGURATIONS

      E-Print Network [OSTI]

      carried by the plasma. The FRC o#ers a unique fusion reactor potential because of its compact and simple. Jardin, H. Ji, M. Yamada, R. Kulsrud Princeton Plasma Physics Laboratory, Princeton, NJ 08543, USA Abstract Global stability of the Field­Reversed Configuration (FRC) has been investigated nu­ merically

    18. Kinematic Synthesis with Configuration Spaces \\Lambda Devika Subramanian

      E-Print Network [OSTI]

      Subramanian, Devika

      that both the topology and the types of kinematic pairs of the mechanism are determined togethKinematic Synthesis with Configuration Spaces \\Lambda Devika Subramanian Department of Computer introduces a new approach to the conceptual design of mechanical systems from qualitative specifications

    19. Polyhedral-Based Data Reuse Optimization for Configurable Computing

      E-Print Network [OSTI]

      Jalali. Bahram

      Polyhedral-Based Data Reuse Optimization for Configurable Computing Louis-No¨el Pouchet,1 Peng with careful software-based data reuse and communication scheduling techniques. We present a fully automated C Zhang,1 P. Sadayappan,2 Jason Cong1 1 University of California, Los Angeles {pouchet

    20. CMOS Photovoltaic-cell Layout Configurations for Harvesting Microsystems

      E-Print Network [OSTI]

      Rincon-Mora, Gabriel A.

      CMOS Photovoltaic-cell Layout Configurations for Harvesting Microsystems Rajiv Damodaran Prabha, and radiation, photovoltaic (PV) systems are appealing options. Still, chip-sized CMOS PV cells produce only well in substrate cell are better. Index Terms--Ambient light energy, harvester, CMOS photovoltaic (PV

    1. CRAD, Configuration Management- Los Alamos National Laboratory Weapons Facility

      Broader source: Energy.gov [DOE]

      A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for an assessment of the Configuration Management program at the Los Alamos National Laboratory, Weapons Facility.

    2. Randomizing AMI Configuration for Proactive Defense in Smart Grid

      E-Print Network [OSTI]

      Wang, Yongge

      Randomizing AMI Configuration for Proactive Defense in Smart Grid Muhammad Qasim Ali, Ehab Al: {mali12, ealshaer, qiduan}@uncc.edu Abstract--Smart grids are capable of bi-directional commu- nication between smart meters and headend systems. It is a core feature of smart grid provided by the underlying

    3. General Impedance Synthesizer Using Minimal Configuration of Switching Converters

      E-Print Network [OSTI]

      Tse, Chi K. "Michael"

      converter may contain a storage element and a pair of switches, such as the buck, buck-boost and boostGeneral Impedance Synthesizer Using Minimal Configuration of Switching Converters Joe C.P. Liu Chi a minimum number of switching converters is stud- ied in this paper. We begin with showing that any

    4. SIMULATION OF GENERIC MULTIPROCESSOR CONFIGURATIONS FOR ASYNCHRONOUS ALGORITHMS

      E-Print Network [OSTI]

      Conrad, James M.

      SIMULATION OF GENERIC MULTIPROCESSOR CONFIGURATIONS FOR ASYNCHRONOUS ALGORITHMS James M. Conrad is a useful tool to predict a parallel algorithm's behavior. Most existing parallel system simulators assume a particular architecture or simulate algorithms at a machine instruction level. This paper describes a simple

    5. Exploratory Patent Search with Faceted Search and Configurable Entity Mining

      E-Print Network [OSTI]

      Tzitzikas, Yannis

      Exploratory Patent Search with Faceted Search and Configurable Entity Mining Pavlos Fafalios1 Searching for patents is usually a recall-oriented problem and depending on the patent search type, quite. We propose an exploratory strategy for patent search that exploits the metadata already available

    6. Model-Driven Process Configuration of Enterprise Systems*

      E-Print Network [OSTI]

      van der Aalst, Wil

      have been funded by SAP Research and Queensland University of Technology with the project "ModellingModel-Driven Process Configuration of Enterprise Systems* Alexander Dreiling, Michael Rosemann Queensland University of Technology Wil van der Aalst Eindhoven University of Technology Wasim Sadiq SAP

    7. A Configurable Reference Modelling Language1 M. Rosemanna

      E-Print Network [OSTI]

      van der Aalst, Wil

      , Configuration, Event-driven Process Chains 1 This research project is financially supported by SAP Corporate reference models "just" depict the possible system capabilities and cannot sufficiently guide the project, Eindhoven, The Netherlands, w.m.p.v.d.aalst@tm.tue.nl Abstract Enterprise Systems (ES) are comprehensive off

    8. Thin film solar cell configuration and fabrication method

      DOE Patents [OSTI]

      Menezes, Shalini

      2009-07-14

      A new photovoltaic device configuration based on an n-copper indium selenide absorber and a p-type window is disclosed. A fabrication method to produce this device on flexible or rigid substrates is described that reduces the number of cell components, avoids hazardous materials, simplifies the process steps and hence the costs for high volume solar cell manufacturing.

    9. Preconceptual ABC design definition and system configuration layout

      SciTech Connect (OSTI)

      Barthold, W. [Barthold & Associates, Inc., Knoxville, TN (United States)

      1995-03-01

      This document is the conceptual design document for the follow-on to the Molten Salt Breeder Reactor, known as the ABC type reactor. It addresses blanket design options, containment options, off-gas systems, drainage systems, and components/layouts of the primary, secondary, and tertiary systems, and it contains a number of diagrams for the configuration of the major systems.

    10. Ionospheric control of the magnetospheric configuration: Thermospheric neutral winds

      E-Print Network [OSTI]

      De Zeeuw, Darren L.

      Ionospheric control of the magnetospheric configuration: Thermospheric neutral winds A. J. Ridley precipitation pattern, while the TIEGCM provides the divergence of the height-integrated neutral wind multiplied in this study that the neutral winds cause an approximately 6% increase in the cross polar cap potential when

    11. Redefining Web Browser Principals with a Configurable Origin Policy

      E-Print Network [OSTI]

      Chen, Yan

      Abstract--With the advent of Web 2.0, web developers have designed multiple additions to break SOP boundary is protected from other origins in terms of resource access and usage. With the advent of Web 2.0, modern webRedefining Web Browser Principals with a Configurable Origin Policy Yinzhi Cao, Vaibhav Rastogi

    12. Sustainability of Self-Configuring Wireless Sensor Bozena Kaminska

      E-Print Network [OSTI]

      Gburzynski, Pawel

      and the network infrastructure, requires employing advanced techniques in various areas such as MEMS sensors [1Sustainability of Self-Configuring Wireless Sensor Networks Bozena Kaminska Simon Fraser University Department of Computing Science Edmonton, AB, CANADA pawel@cs.ualberta.ca Abstract-- Wireless Sensor Networks

    13. Jet Noise Shielding for Advanced Hybrid Wing-Body Configurations

      E-Print Network [OSTI]

      Papamoschou, Dimitri

      1 Jet Noise Shielding for Advanced Hybrid Wing-Body Configurations Dimitri Papamoschou noise shielding with an advanced design for the Hybrid Wing- Body airplane. The design, called N2AEXTE coordinates relative to plug tip X = axial distance between fan exit plane and shield trailing edge Subscripts

    14. 1 January 2006 1 Base Configuration and Case Studies

      E-Print Network [OSTI]

      prices (specified on area) - Yearly heat demand (specified on area) - Yearly electricity demand price - Sulphur tax Year 2000-2010 Year 2000-2010 Price flexible electricity demand Year 2000 in the Wilmar project. Furthermore apart from the base configuration, this note also contains a description

    15. Energy aware RAID Configuration for Large Storage Systems Norifumi Nishikawa

      E-Print Network [OSTI]

      Butt, Ali R.

      configurations have been pursued from an energy saving perspective. We first investigate how different RAID for performance, capacity, and efficiency. Such RAID groups, however, might not be efficient for energy saving because the unit of power control becomes large. Aiming to realize storage energy saving, it is important

    16. Secure zero configuration in a ubiquitous computing environment

      E-Print Network [OSTI]

      Mitchell, Chris

      Secure zero configuration in a ubiquitous computing environment Shenglan Hu and Chris J. Mitchell Ubiquitous computing, a method of enhancing computer use by making many computers available throughout is required for environments where administration is imprac- tical or impossible. In a ubiquitous computing

    17. Section 3 Electronic Configurations, Term Symbols, and Introductory Remarks-The Orbital, Configuration, and State Pictures of Electronic

      E-Print Network [OSTI]

      Simons, Jack

      , Configuration, and State Pictures of Electronic Structure One of the goals of quantum chemistry is to allow if They Have Similar Energies. I. Orbitals Do Not Provide the Complete Picture; Their Occupancy By the N in this Section and in more detail in Section 6, the picture of N electrons occupying orbitals to form

    18. Non-Volatile Configuration Scheme for the Stratix II EP2S60 DSP Development Board

      E-Print Network [OSTI]

      Ellingson, Steven W.

      immediately present in the Stratix II device when powering up the DSP board. Upon power-up, the configuration to four status LEDs to show the configuration status of the DSP board at a glance. Table 2 shows the behavior of the configuration-status LEDs. 1 #12;Table 1: Configuration DIP Switch (SW2) Combinations[1

    19. Distinct magnetic signatures of fractional vortex configurations in multiband superconductors

      SciTech Connect (OSTI)

      Silva, R. M. da; Domínguez, D.; Aguiar, J. Albino

      2014-12-08

      Vortices carrying fractions of a flux quantum are predicted to exist in multiband superconductors, where vortex core can split between multiple band-specific components of the superconducting condensate. Using the two-component Ginzburg-Landau model, we examine such vortex configurations in a two-band superconducting slab in parallel magnetic field. The fractional vortices appear due to the band-selective vortex penetration caused by different thresholds for vortex entry within each band-condensate, and stabilize near the edges of the sample. We show that the resulting fractional vortex configurations leave distinct fingerprints in the static measurements of the magnetization, as well as in ac dynamic measurements of the magnetic susceptibility, both of which can be readily used for the detection of these fascinating vortex states in several existing multiband superconductors.

    20. DFT STUDY REVISES INTERSTITIAL CONFIGURATIONS IN HCP Zr

      SciTech Connect (OSTI)

      Samolyuk, German D; Golubov, Stanislav I; Osetskiy, Yury N; Stoller, Roger E

      2012-06-01

      Analysis of experimental result on microstructure evolution in irradiated Zr and alloys has demonstrated that available knowledge on self-interstitial defects in Zr is in contradiction. We therefore have initiated an extensive theoretical and modeling program to clarify this issue. In this report we present first ab initio calculations results of single SIA configurations in Zr. We demonstrate importance of simulations cell size, applied exchange-correlation functional and simulated c/a ratio. The results obtained demonstrate clearly that the most stable configurations are in basal plane and provide some evidences for enhanced interstitial transport along basal planes. The results obtained will be used in generation a new interatomic potential for Zr to be used in large-scale atomistic modeling of mechanisms relevant for radiation-induced microstructure evolution.

    1. Quasi-black holes: general features and purely field configurations

      E-Print Network [OSTI]

      K. A. Bronnikov; O. B. Zaslavskii

      2015-04-27

      Objects that are on the threshold of forming the horizon but never collapse are called quasi-black holes (QBHs). We discuss the properties of the general spherically symmetric QBH metric without addressing its material source, including its limiting cases as the corresponding small parameter tends to zero. We then show that QBHs can exist among self-gravitating configurations of electromagnetic and dilatonic scalar fields without matter. These general results are illustrated by explicit examples of exact solutions.

    2. Nonlinear aeroelastic analysis of aircraft wing-with-store configurations 

      E-Print Network [OSTI]

      Kim, Kiun

      2004-09-30

      AEROELASTIC ANALYSIS OF AIRCRAFT WING-WITH-STORE CONFIGURATIONS A Dissertation by KIUN KIM Submitted to the O±ce of Graduate Studies of Texas A&M University in partial ful¯llment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2004 Major Subject... wife has been very busy supporting my family. Without my wife's sacri¯ce, I could not have ¯nished my work. vi TABLE OF CONTENTS CHAPTER Page I INTRODUCTION : : : : : : : : : : : : : : : : : : : : : : : : : : 1 A. Statement of Problem...

    3. Neutrinoless double beta decay studied with configuration mixing methods

      E-Print Network [OSTI]

      Tomas R. Rodriguez; Gabriel Martinez-Pinedo

      2010-12-08

      We study neutrinoless double beta decay of several isotopes with state-of-the-art beyond self-consistent mean field methods to compute the nuclear matrix elements (NME). Generating coordinate method with particle number and angular momentum projection (GCM+PNAMP) is used for finding mother and granddaughter states and evaluating transition operators between different nuclei. We analyze explicitly the role of the deformation, pairing and configuration mixing in the evaluation of the NME.

    4. Configuration mixing effects in neutron-rich carbon isotopes

      E-Print Network [OSTI]

      C. X. Yuan; F. R. Xu; C. Qi

      2015-07-24

      Shell model calculations are done to study the structure of neutron-rich carbon isotopes. For both even-A and odd-A neutron-rich carbon isotopes, the energy levels are strongly affected by the configuration mixing of valence neutrons. The calculated energy levels in the nucleus $^{17}$C are significantly improved compared with experimental values when the model space of the three valence neutrons is enlarged from pure $\

    5. Configuration mixing effects in neutron-rich carbon isotopes

      E-Print Network [OSTI]

      Yuan, C X; Qi, C

      2015-01-01

      Shell model calculations are done to study the structure of neutron-rich carbon isotopes. For both even-A and odd-A neutron-rich carbon isotopes, the energy levels are strongly affected by the configuration mixing of valence neutrons. The calculated energy levels in the nucleus $^{17}$C are significantly improved compared with experimental values when the model space of the three valence neutrons is enlarged from pure $\

    6. Measure Guideline: Optimizing the Configuration of Flexible Duct Junction Boxes

      SciTech Connect (OSTI)

      Beach, R.; Burdick, A.

      2014-03-01

      This measure guideline offers additional recommendations to heating, ventilation, and air conditioning (HVAC) system designers for optimizing flexible duct, constant-volume HVAC systems using junction boxes within Air Conditioning Contractors of America (ACCA) Manual D guidance (Rutkowski, H. Manual D -- Residential Duct Systems, 3rd edition, Version 1.00. Arlington, VA: Air Conditioning Contractors of America, 2009.). IBACOS used computational fluid dynamics software to explore and develop guidance to better control the airflow effects of factors that may impact pressure losses within junction boxes among various design configurations (Beach, R., Prahl, D., and Lange, R. CFD Analysis of Flexible Duct Junction Box Design. Golden, CO: National Renewable Energy Laboratory, submitted for publication 2013). These recommendations can help to ensure that a system aligns more closely with the design and the occupants' comfort expectations. Specifically, the recommendations described herein show how to configure a rectangular box with four outlets, a triangular box with three outlets, metal wyes with two outlets, and multiple configurations for more than four outlets. Designers of HVAC systems, contractors who are fabricating junction boxes on site, and anyone using the ACCA Manual D process for sizing duct runs will find this measure guideline invaluable for more accurately minimizing pressure losses when using junction boxes with flexible ducts.

    7. A directory service for configuring high-performance distributed computations

      SciTech Connect (OSTI)

      Fitzgerald, S.; Kesselman, C.; Foster, I.

      1997-08-01

      High-performance execution in distributed computing environments often requires careful selection and configuration not only of computers, networks, and other resources but also of the protocols and algorithms used by applications. Selection and configuration in turn require access to accurate, up-to-date information on the structure and state of available resources. Unfortunately, no standard mechanism exists for organizing or accessing such information. Consequently, different tools and applications adopt ad hoc mechanisms, or they compromise their portability and performance by using default configurations. We propose a Metacomputing Directory Service that provides efficient and scalable access to diverse, dynamic, and distributed information about resource structure and state. We define an extensible data model to represent required information and present a scalable, high-performance, distributed implementation. The data representation and application programming interface are adopted from the Lightweight Directory Access Protocol; the data model and implementation are new. We use the Globus distributed computing toolkit to illustrate how this directory service enables the development of more flexible and efficient distributed computing services and applications.

    8. An Exact Fluctuating 1/2-BPS Configuration

      E-Print Network [OSTI]

      Stefano Bellucci; Bhupendra Nath Tiwari

      2010-04-16

      This work explores the role of thermodynamic fluctuations in the two parameter giant and superstar configurations characterized by an ensemble of arbitrary liquid droplets or irregular shaped fuzzballs. Our analysis illustrates that the chemical and state-space geometric descriptions exhibit an intriguing set of exact pair correction functions and the global correlation lengths. The first principle of statistical mechanics shows that the possible canonical fluctuations may precisely be ascertained without any approximation. Interestingly, our intrinsic geometric study exemplifies that there exist exact fluctuating 1/2-BPS statistical configurations which involve an ensemble of microstates describing the liquid droplets or fuzzballs. The Gaussian fluctuations over an equilibrium chemical and state-space configurations accomplish a well-defined, non-degenerate, curved and regular intrinsic Riemannian manifolds for all physically admissible domains of black hole parameters. An explicit computation demonstrates that the underlying chemical correlations involve ordinary summations, whilst the state-space correlations may simply be depicted by standard polygamma functions. Our construction ascribes definite stability character to the canonical energy fluctuations and to the counting entropy associated with an arbitrary choice of excited boxes from an ensemble of ample boxes constituting a variety of Young tableaux.

    9. On the Relativity in Configuration Space: A Renewed Physics In Sight

      E-Print Network [OSTI]

      Matej Pavsic

      2011-12-09

      The idea that possible configurations of a physical system can be represented as points in a multidimensional configuration space ${\\cal C}$ is explored. The notion of spacetime, without ${\\cal C}$, does not exist in this theory. Spacetime is associated with the degrees of freedom of a chosen single particle within a considered configuration, and is thus a subspace of ${\\cal C}$. Finite dimensional configuration spaces of point particles, and infinite dimensional configuration spaces of branes are considered. Multidimensionality of a configuration space has for a consequence the existence of extra interactions, besides the 4D gravity, both at macroscopic and microscopic scales.

    10. Evaluating the Potential of Commercial GIS for Accelerator Configuration Management

      SciTech Connect (OSTI)

      T.L. Larrieu; Y.R. Roblin; K. White; R. Slominski

      2005-10-10

      The Geographic Information System (GIS) is a tool used by industries needing to track information about spatially distributed assets. A water utility, for example, must know not only the precise location of each pipe and pump, but also the respective pressure rating and flow rate of each. In many ways, an accelerator such as CEBAF (Continuous Electron Beam Accelerator Facility) can be viewed as an ''electron utility''. Whereas the water utility uses pipes and pumps, the ''electron utility'' uses magnets and RF cavities. At Jefferson lab we are exploring the possibility of implementing ESRI's ArcGIS as the framework for building an all-encompassing accelerator configuration database that integrates location, configuration, maintenance, and connectivity details of all hardware and software. The possibilities of doing so are intriguing. From the GIS, software such as the model server could always extract the most-up-to-date layout information maintained by the Survey & Alignment for lattice modeling. The Mechanical Engineering department could use ArcGIS tools to generate CAD drawings of machine segments from the same database. Ultimately, the greatest benefit of the GIS implementation could be to liberate operators and engineers from the limitations of the current system-by-system view of machine configuration and allow a more integrated regional approach. The commercial GIS package provides a rich set of tools for database-connectivity, versioning, distributed editing, importing and exporting, and graphical analysis and querying, and therefore obviates the need for much custom development. However, formidable challenges to implementation exist and these challenges are not only technical and manpower issues, but also organizational ones. The GIS approach would crosscut organizational boundaries and require departments, which heretofore have had free reign to manage their own data, to cede some control and agree to a centralized framework.

    11. Project B610 process control configuration acceptance test procedure

      SciTech Connect (OSTI)

      Silvan, G.R.

      1994-09-20

      The purpose of this test is to verify the Westinghouse configuration of the MICON A/S Distributed Control System for project B610. The following will be verified: proper assignment and operation of all field inputs to and outputs from the MICON Termination panels; proper operation of all display data on the operator`s console; proper operation of all required alarms; and proper operation of all required interlocks. The MICON A/S control system is configured to replace all the control, indication, and alarm panels now located in the Power Control Room. Nine systems are covered by this control configuration, 2736-ZB HVAC, 234-5Z HVAC, Process Vacuum, Dry Air, 291-Z Closed Loop Cooling, Building Accelerometer, Evacuation Siren, Stack CAMs, and Fire. The 2736-ZB HVAC system consists of the ventilation controls for 2736-ZB and 2736-Z as well as alarms for the emergency generators and 232-Z. The 234-5Z HVAC system is the ventilation controls for 235-5Z and 236-Z buildings. Process Vacuum covers the controls for the 26 inch vacuum system. Dry Air covers the controls for the steam and electric air dryers. The 291-Z Closed Loop Cooling system consists of the status indications and alarms for the 291-Z compressor and vacuum pump closed loop cooling system. The rest of closed loop cooling was tested earlier. The Building Accelerometer system consists of the status indications for the two seismic system accelerometers. The Evacuation Siren system includes the controls for the evacuation and take cover sirens. Stack CAMs cover the alarms for the various building ventilation stack continuous air monitors. Finally, the Fire system covers the various fire alarms now located in Room 321-A.

    12. Error-field penetration in reversed magnetic shear configurations

      SciTech Connect (OSTI)

      Wang, H. H.; Wang, Z. X.; Wang, X. Q. [MOE Key Laboratory of Materials Modification by Beams of the Ministry of Education, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024 (China)] [MOE Key Laboratory of Materials Modification by Beams of the Ministry of Education, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024 (China); Wang, X. G. [School of Physics, Peking University, Beijing 100871 (China)] [School of Physics, Peking University, Beijing 100871 (China)

      2013-06-15

      Error-field penetration in reversed magnetic shear (RMS) configurations is numerically investigated by using a two-dimensional resistive magnetohydrodynamic model in slab geometry. To explore different dynamic processes in locked modes, three equilibrium states are adopted. Stable, marginal, and unstable current profiles for double tearing modes are designed by varying the current intensity between two resonant surfaces separated by a certain distance. Further, the dynamic characteristics of locked modes in the three RMS states are identified, and the relevant physics mechanisms are elucidated. The scaling behavior of critical perturbation value with initial plasma velocity is numerically obtained, which obeys previously established relevant analytical theory in the viscoresistive regime.

    13. Ideal magnetohydrodynamic stability of configurations without nested flux surfaces

      SciTech Connect (OSTI)

      Helander, P. [Max-Planck-Institut für Plasmaphysik, EURATOM Association, 17491 Greifswald (Germany)] [Max-Planck-Institut für Plasmaphysik, EURATOM Association, 17491 Greifswald (Germany); Newton, S. L. [EURATOM/CCFE Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom)] [EURATOM/CCFE Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom)

      2013-06-15

      Existing numerical tools for calculating the MHD stability of magnetically confined plasmas generally assume the existence of nested flux surfaces. These tools are therefore not immediately applicable to configurations with magnetic islands or regions with an ergodic magnetic field. However, in practice, these islands or ergodic regions are often small, and their effect on MHD stability can then be evaluated using a perturbation theory developed in the present paper. This procedure allows the effect of the broken magnetic topology on the stability of each eigenmode to be calculated without requiring any knowledge about the perturbed eigenfunctions.

    14. EIA - Natural Gas Pipeline Network - Network Configuration & System Design

      Gasoline and Diesel Fuel Update (EIA)

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979Coal4Cubic43,728ConfigurationListNetwork

    15. Electrostatic spherically symmetric configurations in gravitating nonlinear electrodynamics

      SciTech Connect (OSTI)

      Diaz-Alonso, J.; Rubiera-Garcia, D. [LUTH, Observatoire de Paris, CNRS, , USAUniversite Paris Diderot, 5 Place Jules Janssen, 92190 Meudon (France) and Departamento de Fisica, Universidad de Oviedo, Avda. Calvo Sotelo 18, E-33007 Oviedo, Asturias (Spain)

      2010-03-15

      We perform a study of the gravitating electrostatic spherically symmetric (G-ESS) solutions of Einstein field equations minimally coupled to generalized nonlinear Abelian gauge models in three space dimensions. These models are defined by Lagrangian densities which are general functions of the gauge field invariants, restricted by some physical conditions of admissibility. They include the class of nonlinear electrodynamics supporting electrostatic spherically symmetric (ESS) nontopological soliton solutions in absence of gravity. We establish that the qualitative structure of the G-ESS solutions of admissible models is fully characterized by the asymptotic and central-field behaviors of their ESS solutions in flat space (or, equivalently, by the behavior of the Lagrangian densities in vacuum and on the point of the boundary of their domain of definition, where the second gauge invariant vanishes). The structure of these G-ESS configurations for admissible models supporting divergent-energy ESS solutions in flat space is qualitatively the same as in the Reissner-Nordstroem case. In contrast, the G-ESS configurations of the models supporting finite-energy ESS solutions in flat space exhibit new qualitative features, which are discussed in terms of the Arnowitt-Deser-Misner mass, the charge, and the soliton energy. Most of the results concerning well-known models, such as the electrodynamics of Maxwell, Born-Infeld, and the Euler-Heisenberg effective Lagrangian of QED, minimally coupled to gravitation, are shown to be corollaries of general statements of this analysis.

    16. QUASI-STEADY CONFIGURATIONS OF CONDUCTIVE INTRACLUSTER MEDIA

      SciTech Connect (OSTI)

      Voit, G. M.

      2011-10-10

      The radial distributions of temperature, density, and gas entropy among cool-core clusters tend to be quite similar, suggesting that they have entered a quasi-steady state. If that state is regulated by a combination of thermal conduction and feedback from a central active galactic nucleus (AGN), then the characteristics of those radial profiles ought to contain information about the spatial distribution of AGN heat input and the relative importance of thermal conduction. This paper addresses those topics by deriving steady-state solutions for clusters in which radiative cooling, electron thermal conduction, and thermal feedback fueled by accretion are all present, with the aim of interpreting the configurations of cool-core clusters in terms of steady-state models. It finds that the core configurations of many cool-core clusters have entropy levels just below those of conductively balanced solutions in which magnetic fields have suppressed electron thermal conduction to {approx}1/3 of the full Spitzer value, suggesting that AGN feedback is triggered when conduction can no longer compensate for radiative cooling. And even when feedback is necessary to heat the central {approx}30 kpc, conduction may still be the most important heating mechanism within a cluster's central {approx}100 kpc.

    17. Snowflake divertor configuration studies for NSTX-Upgrade

      SciTech Connect (OSTI)

      Soukhanovskii, V A

      2011-11-12

      Snowflake divertor experiments in NSTX provide basis for PMI development toward NSTX-Upgrade. Snowflake configuration formation was followed by radiative detachment. Significant reduction of steady-state divertor heat flux observed in snowflake divertor. Impulsive heat loads due to Type I ELMs are partially mitigated in snowflake divertor. Magnetic control of snowflake divertor configuration is being developed. Plasma material interface development is critical for NSTX-U success. Four divertor coils should enable flexibility in boundary shaping and control in NSTX-U. Snowflake divertor experiments in NSTX provide good basis for PMI development in NSTX-Upgrade. FY 2009-2010 snowflake divertor experiments in NSTX: (1) Helped understand control of magnetic properties; (2) Core H-mode confinement unchanged; (3) Core and edge carbon concentration reduced; and (4) Divertor heat flux significantly reduced - (a) Steady-state reduction due to geometry and radiative detachment, (b) Encouraging results for transient heat flux handling, (c) Combined with impurity-seeded radiative divertor. Outlook for snowflake divertor in NSTX-Upgrade: (1) 2D fluid modeling of snowflake divertor properties scaling - (a) Edge and divertor transport, radiation, detachment threshold, (b) Compatibility with cryo-pump and lithium conditioning; (2) Magnetic control development; and (3) PFC development - PFC alignment and PFC material choice.

    18. Capabilities, Configurations, and Leveraging Strategies: an Investigation of the Leveraging Process of Resource Orchestration 

      E-Print Network [OSTI]

      Boss, David S

      2014-08-21

      process, particularly as it relates to the types of capabilities needed to form capability configurations that are coordinated and deployed. Further, principles of configuration theory have yet to be applied to the resource-based view of the firm. Herein...

    19. Motivation Methods Model configuration Results Forecasting Summary & Outlook Retrieving direct and diffuse radiation with the

      E-Print Network [OSTI]

      Heinemann, Detlev

      Motivation Methods Model configuration Results Forecasting Summary & Outlook 1/ 14 Retrieving. 17, 2015 #12;Motivation Methods Model configuration Results Forecasting Summary & Outlook 2/ 14 Motivation Sky Imager based shortest-term solar irradiance forecasts for local solar energy applications

    20. Introduction To configure Apple Mail to access your University student email account

      E-Print Network [OSTI]

      Balasuriya, Sanjeeva

      Introduction To configure Apple Mail to access your University student email account Procedure 1 8313 3000 or servicedesk@adelaide.edu.au Technology Services Configure Student Gmail - Apple Mail #12;

    1. A Computational Market Model for Distributed Configuration Design Michael P. Wellman

      E-Print Network [OSTI]

      Wellman, Michael P.

      economies" constitutes the market solution to the original problem. After defining the configuration design. Consider a hyper-simplified scenario in aircraft design. (We choose this not as a serious exemplar ¡ ¢ £ £ ¤ ¢ ¥ ¦ § ¨ © ¨ A Computational Market Model for Distributed Configuration

    2. Material Properties and Operating Configurations of Membrane Reactors for Propane Dehydrogenation

      E-Print Network [OSTI]

      Nair, Sankar

      Material Properties and Operating Configurations of Membrane Reactors for Propane Dehydrogenation material properties and operating configurations of packed-bed membrane reactors (PBMRs) for propane Keywords: membrane reactor, propane dehydrogenation, zeolite membrane, modeling, propane dehydrogenation

    3. Field-reversed configuration formation scheme utilizing a spheromak and solenoid induction

      E-Print Network [OSTI]

      Ji, Hantao

      -organized plasmas.12­15 A key area of research in CT plasmas is the formation of the configuration. The formation expand the use- fulness of the configuration for basic and applied plasma science research. In this paper

    4. The role of spatial configurations in urban dynamics : an analytical model for urban design and development

      E-Print Network [OSTI]

      Varanasi, Kishore Venkat, 1974-

      2001-01-01

      The thesis explores the role of spatial configurations on the development of city form and the influence of these configurations on specific economic variables which govern the development of cities. It is argued that there ...

    5. Habitat configuration and availability influences the settlement of temperate reef fishes (Tripterygiidae)

      E-Print Network [OSTI]

      Shima, Jeff

      Habitat configuration and availability influences the settlement of temperate reef fishes 29 September 2013 Available online 23 October 2013 Keywords: Attraction vs. production Fragmentation Habitat availability Habitat configuration Settlement Tripterygiidae To survive, most benthic marine

    6. Spheromak merging and field reversed configuration formation at the Swarthmore Spheromak Experimenta...

      E-Print Network [OSTI]

      Brown, Michael R.

      configuration FRC 2 is a high com- pact toroidal CT plasma. In its idealized form, it has closed, purely. Plasmas 6, 1717 1999 are reported. In its new configuration, SSX is optimized to study field reversed configuration FRC formation and stability by counter-helicity spheromak merging. A pair of midplane coils

    7. On The Ten Point Wood-Desargues' Configuration Christopher J Bradley and Geoff C Smith

      E-Print Network [OSTI]

      Smith, Geoff

      1 Article 6 On The Ten Point Wood-Desargues' Configuration Christopher J Bradley and Geoff C Smith Abstract The ten pairs of directly similar triangles in perspective in the Wood-Desargues' configuration are similar to the five cyclic quadrangles of the initial Wood-Desargues' configuration and that these five

    8. Path Planning in Expansive Configuration Spaces David Hsu JeanClaude Latombe Rajeev Motwani

      E-Print Network [OSTI]

      Latombe, Jean-Claude

      whose connectivity can be effectively captured by a roadmap of randomly­sampled milestones. The analysis, avoiding the cost of precomputing a roadmap for the entire configuration space. Thus, it is well a roadmap of the configuration space and tries to find a path between any two input configurations

    9. Path Planning in Expansive Configuration Spaces David Hsu JeanClaude Latombe Rajeev Motwani

      E-Print Network [OSTI]

      Motwani, Rajeev

      be effectively captured by a roadmap of randomly­sampled milestones. The analysis of expansive configuration of precomputing a roadmap for the entire configuration space. Thus, it is well­suited for problems where only in [12], uses random sampling to construct a probabilistic roadmap in the configuration space

    10. Facility configuration management: An approach to PSM/RMP compliance

      SciTech Connect (OSTI)

      Melson, K.R. [Hurst Consulting, Inc., Angleton, TX (United States); Tagoe, C.C. [Occidental Chemical Corp., Pasadena, TX (United States); Souza, P.A. de [Tandem Technologies Group, Inc., Houston, TX (United States)

      1996-08-01

      New industry standards addressing Process Safety Management (PSM) and Risk Management Programs (RMP) specifically focus on the Management of Change (MOC) in chemical plants. The nuclear power industry has addressed this issue very strongly, since their regulations are even more stringent in MOC than the PSM and RMP standards. Although the nuclear industry is viewed by some as overly regulated, the purpose of this paper is to investigate the methods used in the nuclear industry to address the same types of requirements, and explore any advantages and lessons learned from the nuclear industry. Configuration Management programs are widely used in the nuclear industry to address MOC. When implemented properly, they have been found to be very effective in implementing site wide requirements, solving coordination problems, and increasing plant safety.

    11. Nanoalloy electrocatalysis: Simulating cyclic voltammetry from configurational thermodynamics with adsorbates

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

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

      2015-02-27

      We simulate the adsorption isotherms for alloyed nanoparticles (nanoalloys) with adsorbates to determine cyclic voltammetry (CV) during electrocatalysis. The effect of alloying on nanoparticle adsorption isotherms is provided by a hybrid-ensemble Monte Carlo simulation that uses the cluster expansion method extended to non-exchangeable coupled lattices for nanoalloys with adsorbates. Exemplified here for the hydrogen evolution reaction, a 2-dimensional CV is mapped for Pd–Pt nanoalloys as a function of both electrochemical potential and the global Pt composition, and shows a highly non-linear alloying effect on CV. Detailed features in CV arise from the interplay among the H-adsorption in multiple sites thatmore »is closely correlated with alloy configurations, which are in turn affected by the H-coverage. The origins of specific features in CV curves are assigned. As a result, the method provides a more complete means to design nanoalloys for electrocatalysis.« less

    12. Optimized multibeam configuration for observation of QED cascades

      E-Print Network [OSTI]

      Gelfer, E G; Fedotov, A M; Bashmakov, V F; Nerush, E N; Kostyukov, I Y; Narozhny, N B

      2015-01-01

      QED cascades in intense electromagnetic field can occur if the dynamical quantum parameter $\\chi$ of a seed electron, which in Compton units coincides with the electron proper acceleration, attains the order of unity. We derive general expression for $\\chi$ of an initially slow electron in an arbitrary electromagnetic field for a time range $t\\ll 1/\\omega$, where $\\omega$ is the field carrier frequency. Using this formula, we consider a special field configuration of multiple colliding focused laser beams and optimize it to provide cascade development at laser power below $10$ PW and intensity of the order of $10^{23}$W/cm$^2$. Such parameters of the beams will be obtained with a new generation of laser facilities, particularly the ELI Beamlines, in the coming years.

    13. Configuration and technology implications of potential nuclear hydrogen system applications.

      SciTech Connect (OSTI)

      Conzelmann, G.; Petri, M.; Forsberg, C.; Yildiz, B.; ORNL

      2005-11-05

      Nuclear technologies have important distinctions and potential advantages for large-scale generation of hydrogen for U.S. energy services. Nuclear hydrogen requires no imported fossil fuels, results in lower greenhouse-gas emissions and other pollutants, lends itself to large-scale production, and is sustainable. The technical uncertainties in nuclear hydrogen processes and the reactor technologies needed to enable these processes, as well waste, proliferation, and economic issues must be successfully addressed before nuclear energy can be a major contributor to the nation's energy future. In order to address technical issues in the time frame needed to provide optimized hydrogen production choices, the Nuclear Hydrogen Initiative (NHI) must examine a wide range of new technologies, make the best use of research funding, and make early decisions on which technology options to pursue. For these reasons, it is important that system integration studies be performed to help guide the decisions made in the NHI. In framing the scope of system integration analyses, there is a hierarchy of questions that should be addressed: What hydrogen markets will exist and what are their characteristics? Which markets are most consistent with nuclear hydrogen? What nuclear power and production process configurations are optimal? What requirements are placed on the nuclear hydrogen system? The intent of the NHI system studies is to gain a better understanding of nuclear power's potential role in a hydrogen economy and what hydrogen production technologies show the most promise. This work couples with system studies sponsored by DOE-EE and other agencies that provide a basis for evaluating and selecting future hydrogen production technologies. This assessment includes identifying commercial hydrogen applications and their requirements, comparing the characteristics of nuclear hydrogen systems to those market requirements, evaluating nuclear hydrogen configuration options within a given market, and identifying the key drivers and thresholds for market viability of nuclear hydrogen options.

    14. Apparatus configured for identification of a material and method of identifying a material

      DOE Patents [OSTI]

      Slater, John M. (Idaho Falls, ID); Crawford, Thomas M. (Idaho Falls, ID); Frickey, Dean A. (Idaho Falls, ID)

      2001-01-01

      The present invention relates to an apparatus configured for identification of a material and method of identifying a material. One embodiment of the present invention provides an apparatus configured for identification of a material including a first region configured to receive a first sample and output a first spectrum responsive to exposure of the first sample to radiation; a signal generator configured to provide a reference signal having a reference frequency and a modulation signal having a modulation frequency; a modulator configured to selectively modulate the first spectrum using the modulation signal according to the reference frequency; a second region configured to receive a second sample and output a second spectrum responsive to exposure of the second sample to the first spectrum; and a detector configured to detect the second spectrum.

    15. Dynamic processes in field-reversed-configuration compact toroids

      SciTech Connect (OSTI)

      Rej, D.J.

      1987-01-01

      In this lecture, the dynamic processes involved in field-reversed configuration (FRC) formation, translation, and compression will be reviewed. Though the FRC is related to the field-reversed mirror concept, the formation method used in most experiments is a variant of the field-reversed THETA-pinch. Formation of the FRC eqilibrium occurs rapidly, usually in less than 20 ..mu..s. The formation sequence consists of several coupled processes: preionization; radial implosion and compression; magnetic field line closure; axial contraction; equilibrium formation. Recent experiments and theory have led to a significantly improved understanding of these processes; however, the experimental method still relies on a somewhat empirical approach which involves the optimization of initial preionization plasma parameters and symmetry. New improvements in FRC formation methods include the use of lower voltages which extrapolate better to larger devices. The axial translation of compact toroid plasmas offers an attractive engineering convenience in a fusion reactor. FRC translation has been demonstrated in several experiments worldwide, and these plasmas are found to be robust, moving at speeds up to the Alfven velocity over distances of up to 16 m, with no degradation in the confinement. Compact toroids are ideal for magnetic compression. Translated FRCs have been compressed and heated by imploding liners. Upcoming experiments will rely on external flux compression to heat a translater FRC at 1-GW power levels. 39 refs.

    16. A new configurational bias scheme for sampling supramolecular structures

      E-Print Network [OSTI]

      Robin De Gernier; Tine Curk; Galina V. Dubacheva; Ralf P. Richter; Bortolo M. Mognetti

      2014-12-09

      We present a new simulation scheme which allows an efficient sampling of reconfigurable supramolecular structures made of polymeric constructs functionalized by reactive binding sites. The algorithm is based on the configurational bias scheme of Siepmann and Frenkel and is powered by the possibility of changing the topology of the supramolecular network by a non-local Monte Carlo algorithm. Such plan is accomplished by a multi-scale modelling that merges coarse-grained simulations, describing the typical polymer conformations, with experimental results accounting for free energy terms involved in the reactions of the active sites. We test the new algorithm for a system of DNA coated colloids for which we compute the hybridisation free energy cost associated to the binding of tethered single stranded DNAs terminated by short sequences of complementary nucleotides. In order to demonstrate the versatility of our method, we also consider polymers functionalized by receptors that bind a surface decorated by ligands. In particular we compute the density of states of adsorbed polymers as a function of the number of ligand-receptor complexes formed. Such a quantity can be used to study the conformational properties of adsorbed polymers useful when engineering adsorption with tailored properties. We successfully compare the results with the predictions of a mean field theory. We believe that the proposed method will be a useful tool to investigate supramolecular structures resulting from direct interactions between functionalized polymers for which efficient numerical methodologies of investigation are still lacking.

    17. Intruder configurations in neutron-rich {sup 34}P

      SciTech Connect (OSTI)

      Ollier, J.; Chapman, R.; Liang, X.; Labiche, M.; Spohr, K.-M.; Davison, M.; De Angelis, G.; Axiotis, M.; Kroell, T.; Napoli, D.R.; Martinez, T.; Bazzacco, D.; Farnea, E.; Lunardi, S.; Smith, A.G.; Haas, F.

      2005-03-01

      Extensions to the yrast and near-yrast decay sequences of the neutron-rich nucleus {sub 15}{sup 34}P{sub 19} have been established through an analysis of the {gamma} deexcitation of fragments produced in deep-inelastic processes which occur when 230-MeV {sup 36}S ions interact with a thick target of {sup 176}Yb. The highly sensitive GASP array of escape-suppressed Ge detectors was used to measure the resulting {gamma}-ray deexcitations of both projectilelike and targetlike fragments. Previously unobserved excited states in {sup 34}P were observed at 3351, 6236, 2320, and (4723) keV. Several states above an excitation energy of 2.3 MeV involve intruder configurations from the f{sub 7/2} shell. The investigation of negative parity intruder states on the periphery of the 'island of inversion' has an important role to play in our understanding of the evolution of nuclear structure as the island of inversion is approached.

    18. Fraction of clogging configurations sampled by granular hopper flow

      E-Print Network [OSTI]

      C. C. Thomas; D. J. Durian

      2015-05-05

      We measure the fraction $F$ of flowing grain configurations that precede a clog, based on the average mass discharged between clogging events for various aperture geometries. By tilting the hopper, we demonstrate that $F$ is a function of the hole area projected in the direction of the exiting grain velocity. By varying the length of slits, we demonstrate that grains clog in the same manner as if they were flowing out of a set of smaller independent circular openings. The collapsed data for $F$ can be fit to a decay that is exponential in hole width raised to the power of the system dimensionality. This is consistent with a simple model in which individual grains near the hole have a large but constant probability to precede a clog. Such a picture implies that there is no sharp clogging transition, and that all hoppers have a nonzero probability to clog. See Supplemental Material for models of clogging as a discrete Poisson process, and for resulting alternative measures of l based on the standard deviation of the discharge mass distribution.

    19. Verification of gyrokinetic microstability codes ?with an LHD configuration

      SciTech Connect (OSTI)

      Mikkelsen, D. R.; Nunami, M.; Watanabe, T. -H.; Sugama, H.; Tanaka, K.

      2014-11-01

      We extend previous benchmarks of the GS2 and GKV-X codes to verify their algorithms for solving the gyrokinetic Vlasov-Poisson equations for plasma microturbulence. Code benchmarks are the most complete way of verifying the correctness of implementations for the solution of mathematical models for complex physical processes such as those studied here. The linear stability calculations reported here are based on the plasma conditions of an ion-ITB plasma in the LHD configuration. The plasma parameters and the magnetic geometry differ from previous benchmarks involving these codes. We find excellent agreement between the independently written pre-processors that calculate the geometrical coefficients used in the gyrokinetic equations. Grid convergence tests are used to establish the resolution and domain size needed to obtain converged linear stability results. The agreement of the frequencies, growth rates and eigenfunctions in the benchmarks reported here provides additional verification that the algorithms used by the GS2 and GKV-X codes are correctly finding the linear eigenvalues and eigenfunctions of the gyrokinetic Vlasov-Poisson equations.

    20. Fusion proton diagnostic for the C-2 field reversed configuration

      SciTech Connect (OSTI)

      Magee, R. M. Clary, R.; Korepanov, S.; Smirnov, A.; Garate, E.; Knapp, K.; Tkachev, A.

      2014-11-15

      Measurements of the flux of fusion products from high temperature plasmas provide valuable insights into the ion energy distribution, as the fusion reaction rate is a very sensitive function of ion energy. In C-2, where field reversed configuration plasmas are formed by the collision of two compact toroids and partially sustained by high power neutral beam injection [M. Binderbauer et al., Phys. Rev. Lett. 105, 045003 (2010); M. Tuszewski et al., Phys. Rev. Lett. 108, 255008 (2012)], measurements of DD fusion neutron flux are used to diagnose ion temperature and study fast ion confinement and dynamics. In this paper, we will describe the development of a new 3 MeV proton detector that will complement existing neutron detectors. The detector is a large area (50?cm{sup 2}), partially depleted, ion implanted silicon diode operated in a pulse counting regime. While the scintillator-based neutron detectors allow for high time resolution measurements (?100 kHz), they have no spatial or energy resolution. The proton detector will provide 10 cm spatial resolution, allowing us to determine if the axial distribution of fast ions is consistent with classical fast ion theory or whether anomalous scattering mechanisms are active. We will describe in detail the diagnostic design and present initial data from a neutral beam test chamber.

    1. Touring DNS Open Houses for Trends and Configurations

      SciTech Connect (OSTI)

      Kalafut, Prof. Andrew; Shue, Craig A; Gupta, Prof. Minaxi

      2011-01-01

      DNS is a critical component of the Internet. It maps domain names to IP addresses and serves as a distributed database for various other applications, including mail, Web, and spam filtering. This paper examines DNS zones in the Internet for diversity, adoption rates of new technologies, and prevalence of configuration issues. To gather data, we sweep 60% of the Internet's domains in June - August 2007 for zone transfers. 6.6% of them allow us to transfer their complete information. Surprisingly, this includes a large fraction of the domains deploying DNSSEC. We find that DNS zones vary significantly in size and some span many ASes. Also, while anti-spam technologies appear to be getting deployed, the adoption rates of DNSSEC and IPv6 continue to be low. Finally, we also find that carelessness in handing DNS records can lead to reduced availability of name servers, email, and Web servers. This also undermines anti-spam efforts and the efforts to shut down phishing sites or to contain malware infections.

    2. WE-G-17A-08: Electron Gun Operation for in Line MRI-Linac Configurations: An Assessment of Beam Fidelity and Recovery Techniques for Different SIDs and Magnetic Field Strengths

      SciTech Connect (OSTI)

      Whelan, B; Keall, P; Constantin, D; Holloway, L; Kolling, S; Oborn, B; Fahrig, R

      2014-06-15

      Purpose: To test the functionality of medical electron guns within the fringe field of a purpose built superconducting MRI magnet, and to test different recovery techniques for a variety of imaging field strengths and SIDs. Methods: Three different electron guns were simulated using Finite Element Modelling; a standard diode gun, a standard triode gun, and a novel diode gun designed to operate within parallel magnetic fields. The approximate working regime of each gun was established by assessing exit current in constant magnetic fields of varying strength and defining ‘working’ as less than 10% change in injection current. Next, the 1.0T MRI magnet was simulated within Comsol Multiphysics. The coil currents in this model were also scaled to produce field strengths of .5, 1, 1.5 and 3T. Various magnetic shield configurations were simulated, varying the SID from 800 to 1300mm. The average magnetic field within the gun region was assessed together with the distortion in the imaging volume - greater than 150uT distortion was considered unacceptable. Results: The conventional guns functioned in fields of less than 7.5mT. Conversely, the redesigned diode required fields greater than .1T to function correctly. Magnetic shielding was feasible for SIDS of greater than 1000mm for field strengths of .5T and 1T, and 1100mm for 1.5 and 3.0T. Beyond these limits shielding resulted in unacceptable MRI distortion. In contrast, the redesigned diode could perform acceptably for SIDs of less than 812, 896, 931, and 974mm for imaging strengths of 0.5, 1.0, 1.5, 3.0T. Conclusions: For in-line MRIlinac configurations where the electron gun is operating in low field regions, shielding is a straight forward option. However, as magnetic field strength increases and the SID is reduced, shielding results in too great a distortion in the MRI and redesigning the electron optics is the preferable solution. The authors would like to acknowledge funding from the National Health and Research Council (AUS), National Institute of Health (NIH), and Cancer Institute NSW.

    3. System Configuration Management Implementation Procedure for the Canister Storage Building (CSB)

      SciTech Connect (OSTI)

      GARRISON, R.C.

      2000-09-22

      This document implements the procedure for providing configuration control for the monitoring and control systems associated with the operation of the Canister Storage Building (CSB). It identifies and defines the configuration items in the monitoring and control systems, provides configuration control of these items throughout the system life cycle, provides configuration status accounting, physical protection and control, and verifies the completeness and correctness of the items. It is written to comply with HNF-SD-SNF-CM-001, Spent Nuclear Fuel Configuration Management Plan (Forehand 1998), HNF-PRO-309, Computer Software Quality Assurance Requirements, HNF-PRO-2778, IRM Application Software System Life Cycle Standards, and applicable sections of administrative procedure AP-CM-6-037-00, SNF Project Process Automation Software and Equipment Configuration Management.

    4. Optical fiber configurations for transmission of laser energy over great distances

      DOE Patents [OSTI]

      Rinzler, Charles C; Zediker, Mark S

      2014-11-04

      There are provided optical fiber configurations that provide for the delivery of laser energy, and in particular, the transmission and delivery of high power laser energy over great distances. These configurations further are hardened to protect the optical fibers from the stresses and conditions of an intended application. The configurations provide means for determining the additional fiber length (AFL) need to obtain the benefits of such additional fiber, while avoiding bending losses.

    5. Optical fiber configurations for transmission of laser energy over great distances

      DOE Patents [OSTI]

      Rinzler, Charles C; Zediker, Mark S

      2013-10-29

      There are provided optical fiber configurations that provide for the delivery of laser energy, and in particular, the transmission and delivery of high power laser energy over great distances. These configurations further are hardened to protect the optical fibers from the stresses and conditions of an intended application. The configurations provide means for determining the additional fiber length (AFL) need to obtain the benefits of such additional fiber, while avoiding bending losses.

    6. SL-ST Software Configuration and Management System (SCaM) Project - Project Evaluation Report

      E-Print Network [OSTI]

      Bartolomé, R; Hatziangeli, Eugenia; Last, I; Ninin, P; Sobczak, H; CERN. Geneva. SPS and LEP Division

      1998-01-01

      This document is the output of the evaluation work done as part of the survey phase of the SCaM project. It contains the evaluation of commercial Software Configuration Mangement tools against previou sly captured User Requirements. Recommendations regarding the best solution are made by the project team. They will serve as a basis for the implementation of a software configuration management syste m and the derivation of a software configuration management procedure for SL and ST.

    7. MAP, MAC, and Vortex-rings Configurations in the Weinberg-Salam Model

      E-Print Network [OSTI]

      Rosy Teh; Ban-Loong Ng; Khai-Ming Wong

      2015-03-20

      We report on the presence of new axially symmetric monopoles, antimonopoles and vortex-rings solutions of the SU(2)$\\times$U(1) Weinberg-Salam model of electromagnetic and weak interactions. When the $\\phi$-winding number $n=1$, and 2, the configurations are monopole-antimonopole pair (MAP) and monopole-antimonopole chain (MAC) with poles of alternating sign magnetic charge arranged along the $z$-axis. Vortex-rings start to appear from the MAP and MAC configurations when the winding number $n=3$. The MAP configurations possess zero net magnetic charge whereas the MAC configurations possess net magnetic charge of $4\\pi n/e$. In the MAP configurations, the monopole-antimonopole pair is bounded by the ${\\cal Z}^0$ field flux string and there is an electromagnetic current loop encircling it. The monopole and antimonopole possess magnetic charges $\\pm\\frac{4\\pi n}{e}\\sin^2\\theta_W$ respectively. In the MAC configurations there is no string connecting the monopole and the adjacent antimonopole and they possess magnetic charges $\\pm\\frac{4\\pi n}{e}$ respectively. The MAC configurations possess infinite total energy and zero magnetic dipole moment whereas the MAP configurations which are actually sphalerons possess finite total energy and magnetic dipole moment. The configurations were investigated for varying values of Higgs self-coupling constant $0\\leq \\lambda\\leq 40$ at Weinberg angle $\\theta_W=\\frac{\\pi}{4}$.

    8. DOE Orders Self-Study Program - DOE-STD-1073-2003, Configuration...

      Energy Savers [EERE]

      Configuration Management Familiar Level - August 2011 The familiar level of this module is divided into three sections. The first section covers chapters 1 through 3. The...

    9. The chiral condensate on 2-flavor staggered configurations from an overlap operator

      E-Print Network [OSTI]

      Anna Hasenfratz; Roland Hoffmann

      2006-09-28

      We measure the low lying eigenmodes of an overlap Dirac operator on 2--flavor staggered configurations. By comparing the eigenmode distribution to the predictions of Random Matrix Theory we test to what accuracy staggered configurations describe continuum QCD. The agreement between the numerical data and RMT implies that at our quark mass values the lattice artifacts of the staggered configurations are comparable to overlap configurations. We identify the overlap valence mass that best matches the staggered sea quarks and predict the value of the infinite volume 2-flavor chiral condensate.

    10. System Configuration Management Implementation Procedure for the Canister Storage Building (CSB)

      SciTech Connect (OSTI)

      GARRISON, R.C.

      2000-11-28

      This document provides configuration management for the Distributed Control System (DCS), the Gaseous Effluent Monitoring System (GEMS-100) System, the Heating Ventilation and Air Conditioning (HVAC) Programmable Logic Controller (PLC), the Canister Receiving Crane (CRC) CRN-001 PLC, and both North and South vestibule door interlock system PLCs at the Canister Storage Building (CSB). This procedure identifies and defines software configuration items in the CSB control and monitoring systems, and defines configuration control throughout the system life cycle. Components of this control include: configuration status accounting; physical protection and control; and verification of the completeness and correctness of these items.

    11. Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000

      E-Print Network [OSTI]

      Blackwell, Keith

      Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000 2011 for Mac HMS Help Desk: (617) 432-2000 2 · Create a new". #12;Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000

    12. Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000

      E-Print Network [OSTI]

      Blackwell, Keith

      Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000 2011 for Mac HMS Help Desk: (617) 432-2000 2 · Create a new;Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000 3

    13. A magnetohydrodynamic model of rotating magnetic field current drive in a field-reversed configuration

      E-Print Network [OSTI]

      Washington at Seattle, University of

      -reversed configuration Richard D. Milroy University of Washington, Redmond Plasma Physics Laboratory, Seattle, Washington of a field-reversed configuration FRC . Previous models assumed a fixed ion model, but here a full two of problems: 1 For the sustainment problem, a RMF is applied to a preexisting FRC. 2 For the formation problem

    14. Configuration of Web Services as Parametric Design Annette ten Teije1

      E-Print Network [OSTI]

      ten Teije, Annette

      Configuration of Web Services as Parametric Design Annette ten Teije1 , Frank van Harmelen2. The configuration of Web services is particularly hard given the het- erogeneous, unreliable and open nature of the Web. Furthermore, such compos- ite Web services are likely to be complex services, that will require

    15. PROCESS DESIGN AND CONTROL Comparison of Various Control Configurations for Continuous

      E-Print Network [OSTI]

      Skogestad, Sigurd

      water stream (Fw). The problem described above is actually a quite general control strategy problemPROCESS DESIGN AND CONTROL Comparison of Various Control Configurations for Continuous Bioreactors and Technology, N-7034 Trondheim, Norway Five control configurations for continuous bioreactors are analyzed

    16. Identity and Discernibility of Objects: Configuration Change Management in P.L.M and Database Systems

      E-Print Network [OSTI]

      Paris-Sud XI, Université de

      1 Identity and Discernibility of Objects: Configuration Change Management in P.L.M and Database changes specifically addressed by Product Lifecycle Management systems are examined in the context of fast is relatively and conditionally redefined. The strategies for managing configuration changes are optimized using

    17. A Comparison of Two Camera Configurations For Optic-Flow Based Navigation of a UAV

      E-Print Network [OSTI]

      Sukhatme, Gaurav S.

      optic flow. The two configurations were developed for use on an autonomous helicopter, with the aim an autonomous helicopter. Optic flow information from the images is used to determine the relative distance to obstacles on each side of the helicopter. We show that on average, both camera configurations are equally

    18. AN AUTOMATED TOOL FOR HDL AND CONFIGURATION FILE GENERATION FROM UML SYSTEM DESCRIPTIONS

      E-Print Network [OSTI]

      Thornton, Mitchell

      An Automated Tool for HDL and Configuration File Generation from UML System Descriptions Advisor: Professor of optimally dividing system functionality between hardware and software. This project uses Unified Modeling#12;AN AUTOMATED TOOL FOR HDL AND CONFIGURATION FILE GENERATION FROM UML SYSTEM DESCRIPTIONS

    19. Fusion Engineering and Design 81 (2006) 11591168 Major integration issues in evolving the configuration design

      E-Print Network [OSTI]

      Raffray, A. René

      2006-01-01

      the configuration design space for the ARIES-CS compact stellarator power plant A.R. Raffraya,, S. Malangb, L. El an attractive power plant concept based on a compact stellarator configuration. The first phase of the study and the irregular cross-section of the plasma and in-reactor components. Earlier stellarator power plant studies led

    20. STATIC SECTORIZATION APPROACH TO DYNAMIC AIRSPACE CONFIGURATION USING APPROXIMATE DYNAMIC PROGRAMMING

      E-Print Network [OSTI]

      1 STATIC SECTORIZATION APPROACH TO DYNAMIC AIRSPACE CONFIGURATION USING APPROXIMATE DYNAMIC to Dynamic Airspace Configuration (DAC) by static sectorization. The objective of this paper is to address the issue of static sectorization by partitioning airspace based on controller workload i.e. airspace

    1. MANAGING THE CONFIGURATION OF INFORMATION SYSTEMS WITH A FOCUS ON SECURITY

      E-Print Network [OSTI]

      MANAGING THE CONFIGURATION OF INFORMATION SYSTEMS WITH A FOCUS ON SECURITY Shirley Radack, Editor U.S. Department of Commerce Organizations have to make frequent changes to their information systems result in adjustments being made to the configuration of information systems; these activities could have

    2. SEAS-ICE Android Instructions_v1-03 1 Configuring ICEMail for Android Devices

      E-Print Network [OSTI]

      Chen, Yiling

      SEAS-ICE Android Instructions_v1-03 1 Configuring ICEMail for Android Devices Once you to configure your email on your Android device. Note 1: It is Harvard University policy (http the same. Removing your old SEAS account from your Android device Step 1. Go to all your apps and select

    3. The Configuration Space Method for Kinematic Design of Elisha Sacks and Leo Joskowicz

      E-Print Network [OSTI]

      Joskowicz, Leo

      .2 Tolerance Analysis 100 6.3 Algorithms for Kinematic Pairs 103 6.4 Algorithms for Mechanisms 107 6.5 NotesThe Configuration Space Method for Kinematic Design of Mechanisms Elisha Sacks and Leo Joskowicz­ The configuration space method for kinematic design of mechanisms / Elisha Sacks and Leo Joskowicz. p. cm. Includes

    4. The Effect of Crowder Configuration on Visual Field Inhomogeneities INTRODUCTION RESULTS

      E-Print Network [OSTI]

      Levine, Michael

      · SE ­ inside / radial · S ­ left / orthogonal · SW ­ below · W ­ right / inside / radial · NW any crowder Configurations at the diagonal target locations (NE, NW, SE, SW) were excluded because) Collected additional corresponding configurations at the diagonals (NE, NW, SE, and SW) Average performance

    5. A field-reversed magnetic configuration and applications of high-temperature FRC plasma

      SciTech Connect (OSTI)

      Ryzhkov, S. V., E-mail: ryzhkov@power.bmstu.ru [Bauman Moscow State Technical University (Russian Federation)

      2011-12-15

      As applied to a tokomak, a magnetic trap for confinement of a plasma with an inverted field or a magnetic field reversed configuration (FRC) is one of the most promising alternatives of the systems with high {beta}. A brief review of the latest data on FRC and potential directions of using such configurations in addition to energy generation in thermonuclear reactors (TNRs) is proposed.

    6. Radiation Transport Simulation Studies Using MCNP for a Cow Phantom to Determine an Optimal Detector Configuration for a New Livestock Portal 

      E-Print Network [OSTI]

      Joe Justina, -

      2012-10-19

      scalable gamma radiation portal monitor (RPM) which can be used to assess the level of contamination on large animals like cattle. This work employed a Monte Carlo N-Particle (MCNP) radiation transport code for the purpose. A virtual system of cow...

    7. Los Alamos hybrid environment: an integrated development/configuration management system

      SciTech Connect (OSTI)

      Cort, G.

      1984-01-01

      I present the details of a hybrid configuration management system that utilizes a commercial configuration management tool (Softool's Change and Configuration Control environment) to monitor and control the development of mission-critical software systems at the Los Alamos Weapons Neutron Research Facility. The hybrid system combines features of the VMS host operating system and elements of the tool environment to integrate a flexible development environment with a very powerful automated configuration management system. The features of this system are presented with particular emphasis on the benefits of the hybrid approach. The complementary nature of the constituent environments is described. Special attention is given the issues of operational tradeoffs, personnel interaction and utilization, management visibility and overall system performance. It is shown that by employing a special interface data structure, the hybrid environment supports a much higher level of automation (of both development and configuration management activities) than is realizable in either environment individually. Examples are provided to illustrate the extent to which development activities and all phases of configuration management can be automated under this system. It is shown that in the process of providing a rigorous configuration management environment, the system remains virtually transparent to software development personnel and actually enhances the programmer's capabilities.

    8. Magnetic configuration dependence of magnetoresistance in a Fe-porphyrin-like carbon nanotube spintronic device

      SciTech Connect (OSTI)

      Zeng, Jing; Chen, Ke-Qiu

      2014-01-20

      By using nonequilibrium Green's functions in combination with the density functional theory, we investigate the spin-dependent transport properties in a Fe-porphyrin-like carbon nanotube spintronic device. The results show that magnetoresistance ratio is strongly dependent on the magnetic configuration of the Fe-porphyrin-like carbon nanotube. Under the application of the external magnetic field, the magnetoresistance ratio of the device can be increased from about 19% to about 1020% by tuning the magnetic configuration in the device. Our results confirm that the magnetic configuration is a key factor for obtaining a high-performance spintronic device.

    9. Formation, spin-up, and stability of field-reversed configurations

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Omelchenko, Yuri A.

      2015-08-24

      Formation, spontaneous spin-up and stability of theta-pinch formed field-reversed configurations are studied self-consistently in three dimensions with a multiscale hybrid model that treats all plasma ions as full-orbit collisional macro-particles and the electrons as a massless quasineutral fluid. The end-to-end hybrid simulations for the first time reveal poloidal profiles of implosion-driven fast toroidal plasma rotation and demonstrate three well-known discharge regimes as a function of experimental parameters: the decaying stable configuration, the tilt unstable configuration and the nonlinear evolution of a fast growing tearing mode.

    10. Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000

      E-Print Network [OSTI]

      Blackwell, Keith

      Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000: (617) 432-2000 2 · Select "Entourage information from an archive Outlook 2011 for Mac HMS Help Desk: (617) 432-2000 3 · Select

    11. Venture Capitalists' Decision to Withdraw: The Role of Portfolio Configuration From a Real Options Lens

      E-Print Network [OSTI]

      Li, Yong; Chi, Tailan

      2012-01-01

      When does a venture capital firm withdraw from an investment project prior to its completion? This study offers a real options view on this decision by examining the contingent effects of portfolio configuration. We explore ...

    12. NPIP: A skew line needle configuration optimization system for HDR brachytherapy

      E-Print Network [OSTI]

      Goldberg, Ken

      NPIP: A skew line needle configuration optimization system for HDR brachytherapy Timmy Siauwa) brachytherapy and needle planning by integer program (NPIP), a computational method for generat- ing needles than the current HDR brachytherapy workflow. Combined with robot assisted brachytherapy

    13. Rapid Conversion of Hindered Arylsulfonates to Alkyl Chlorides with Retention of Configuration

      E-Print Network [OSTI]

      Lepore, Salvatore D.

      Rapid Conversion of Hindered Arylsulfonates to Alkyl Chlorides with Retention of Configuration of highly efficient leaving groups containing chelating units capable of attracting incoming nucleophiles assisting leaving groups (NALGs) that contain a polyether unit (including macrocyclic) attached to the aryl

    14. A co-axially configured submillimeter spectrometer and investigations of hydrogen bound molecular complexes 

      E-Print Network [OSTI]

      McElmurry, Blake Anthony

      2009-05-15

      The development of a co-axially configured submillimeter spectrometer is reported. The spectrometer has been constructed to observe molecular complexes that exhibit non-covalent interactions with energies much less than ...

    15. Atomistic characterization of stress-driven configurational instability and its activation mechanisms

      E-Print Network [OSTI]

      Zhu, Ting, 1971-

      2004-01-01

      Cleavage decohesion and shear dislocation nucleation are two basic modes of localized deformation in crystal lattices, which normally result from instability of the atomic configuration driven by mechanical forces. The ...

    16. Configurable Dynamic Privacy for Pervasive Sensor Networks Nan-Wei Gong

      E-Print Network [OSTI]

      1 Configurable Dynamic Privacy for Pervasive Sensor Networks by Nan-Wei Gong Submitted Privacy for Pervasive Sensor Networks by Nan-Wei Gong Submitted to the Program in Media Arts and Sciences

    17. Design of a cluster analysis heuristic for the configuration and capacity management of manufacturing cells 

      E-Print Network [OSTI]

      Shim, Young Hak

      2007-09-17

      , the machine capacity was first ensured, and then manufacturing cells were configured to minimize intercellular movements. In order to ensure the machine capacity, the duplication of machines and the split of operations are allowed and operations are assigned...

    18. Saltwell PIC Skid Programmable Logic Controller (PLC) Software Configuration Management Plan

      SciTech Connect (OSTI)

      KOCH, M.R.

      1999-11-16

      This document provides the procedures and guidelines necessary for computer software configuration management activities during the operation and maintenance phases of the Saltwell PIC Skids as required by LMH-PRO-309, Rev. 0, Computer Software Quality Assurance, Section 2.6, Software Configuration Management. The software configuration management plan (SCMP) integrates technical and administrative controls to establish and maintain technical consistency among requirements, physical configuration, and documentation for the Saltwell PIC Skid Programmable Logic Controller (PLC) software during the Hanford application, operations and maintenance. This SCMP establishes the Saltwell PIC Skid PLC Software Baseline, status changes to that baseline, and ensures that software meets design and operational requirements and is tested in accordance with their design basis.

    19. Saltwell Leak Detector Station Programmable Logic Controller (PLC) Software Configuration Management Plan (SCMP)

      SciTech Connect (OSTI)

      WHITE, K.A.

      2000-11-28

      This document provides the procedures and guidelines necessary for computer software configuration management activities during the operation and maintenance phases of the Saltwell Leak Detector Stations as required by HNF-PRO-309, Rev. 1, Computer Software Quality Assurance, Section 2.4, Software Configuration Management. The software configuration management plan (SCMP) integrates technical and administrative controls to establish and maintain technical consistency among requirements, physical configuration, and documentation for the Saltwell Leak Detector Station Programmable Logic Controller (PLC) software during the Hanford application, operations and maintenance. This SCMP establishes the Saltwell Leak Detector Station PLC Software Baseline, status changes to that baseline, and ensures that software meets design and operational requirements and is tested in accordance with their design basis.

    20. Permissible symmetries of multi-domain configurations in perovskite ferroelectric crystals

      E-Print Network [OSTI]

      Cao, Wenwu

      Permissible symmetries of multi-domain configurations in perovskite ferroelectric crystals Jiri through domain engineering are specified for perovskite ferroelectric crystals having tetragonal walls . Many useful ferroelectric materials have the so-called perovskite structure, which contains

    1. ITL BULLETIN FOR MAY 2011 USING SECURITY CONFIGURATION CHECKLISTS AND THE NATIONAL

      E-Print Network [OSTI]

      ITL BULLETIN FOR MAY 2011 USING SECURITY CONFIGURATION CHECKLISTS AND THE NATIONAL CHECKLIST PROGRAM Shirley Radack, Editor Computer Security Division Information Technology Laboratory National Institute of Standards and Technology U.S. Department of Commerce The secure management of information

    2. A configuration and analysis for damping oscillations in flexible robotic arms using passive elements 

      E-Print Network [OSTI]

      Compere, Marc Damon

      1996-01-01

      A hardware configuration that reduces excessive oscillation in flexible robotic arms is presented and analyzed. An experimental apparatus was constructed and proved to effectively damp unwanted oscillations using passive components. Equations...

    3. Estimation of maximum-likelihood discrete-choice models of the runway configuration selection process

      E-Print Network [OSTI]

      Ramanujam, Varun

      The runway configuration is the subset of the runways at an airport that are used for arrivals and departures at any time. Many factors, including weather (wind and visibility), expected arrival and departure demand, ...

    4. Steady-state and equilibrium vortex configurations, transitions, and evolution in a mesoscopic superconducting cylinder 

      E-Print Network [OSTI]

      Kim, S.; Hu, Chia-Ren; Andrews, MJ.

      2004-01-01

      A numerical scheme to study the mixed states in a mesoscopic type-II superconducting cylinder is described. Steady-state configurations and transient behavior of the magnetic vortices for various values of the applied magnetic field H are presented...

    5. SYMMETRY SIMPLIFICATIONS OF SPACE TYPES IN CONFIGURATION INTERACTION INDUCED BY ORBITAL DEGENERACY

      E-Print Network [OSTI]

      Balasubramanian, K.

      2013-01-01

      of Lowdi.n orbitals of Butadiene. Note that the ninth classLowdin orbitals of butadiene shown below are equivalent. -the two configurations of butadiene shown below, which are

    6. Effects of sample geometry on the dynamics and configurations of vortices in mesoscopic superconductors 

      E-Print Network [OSTI]

      Kim, Sangbum; Burkardt, John; Gunzburger, Max; Peterson, Janet.

      2007-01-01

      A computational study of mixed states in mesoscopic type-II superconducting cylinders is presented. The dependence of transient behaviors and steady-state configurations on the value of the applied magnetic field is examined as are the effects...

    7. Performance monitoring for new phase dynamic optimization of instruction dispatch cluster configuration

      DOE Patents [OSTI]

      Balasubramonian, Rajeev (Sandy, UT); Dwarkadas, Sandhya (Rochester, NY); Albonesi, David (Ithaca, NY)

      2012-01-24

      In a processor having multiple clusters which operate in parallel, the number of clusters in use can be varied dynamically. At the start of each program phase, the configuration option for an interval is run to determine the optimal configuration, which is used until the next phase change is detected. The optimum instruction interval is determined by starting with a minimum interval and doubling it until a low stability factor is reached.

    8. Continuous Transition of Defect Configuration in a Deformed Liquid Crystal Film

      E-Print Network [OSTI]

      Isaku Hasegawa; Hiroyuki Shima

      2010-10-06

      We investigate energetically favorable configurations of point disclinations in nematic films having a bump geometry. Gradual expansion in the bump width {\\Delta} gives rise to a sudden shift in the stable position of the disclinations from the top to the skirt of the bump. The positional shift observed across a threshold {\\Delta}th obeys a power law function of |{\\Delta}-{\\Delta}th|, indicating a new class of continuous phase transition that governs the defect configuration in curved nematic films.

    9. MS Outlook 2010 Secure IMAP Configuration Settings for Windows-based PCs rriyo: 09/01/2011 Page 1

      E-Print Network [OSTI]

      Zhang, Yi

      MS Outlook 2010 Secure IMAP Configuration Settings for Windows-based PCs rriyo: 09/01/2011 Page 1 · This document was tested using MS Outlook 2010 using Windows 7 SP1 64-bit. Configuration settings may vary with other versions of Outlook and the Windows operating system. · When configuring your account settings

    10. Inline Ultrasonic Rheometry by Pulsed Doppler

      SciTech Connect (OSTI)

      Pfund, David M.; Greenwood, Margaret S.; Bamberger, Judith A.; Pappas, Richard A.

      2006-12-22

      This will be a discussion of the non-invasive determination of the viscosity of a non-Newtonian fluid in laminar pipe flow over the range of shear rates present in the pipe. The procedure used requires knowledge of the flow profile in and the pressure drop along a long straight run of pipe. The profile is determined by using a pulsed ultrasonic Doppler velocimeter. This approach is ideal for making non-invasive, real-time measurements for monitoring and control. Rheograms of a shear thinning, thixotropic gel will be presented. The operating parameters and limitations of the Doppler-based instrument will be discussed. The most significant limitation is velocity gradient broadening of the Doppler spectra near the walls of the pipe. This limitation can be significant for strongly shear thinning fluids (depending also on the ratio of beam to pipe diameter and the transducer's insertion angle).

    11. 3D magnetic field configuration of small-scale reconnection events in the solar plasma atmosphere

      E-Print Network [OSTI]

      Shimizu, T

      2015-01-01

      The outer solar atmosphere, i.e., the corona and the chromosphere, is replete with small energy-release events, which are accompanied by transient brightening and jet-like ejections. These events are considered to be magnetic reconnection events in the solar plasma, and their dynamics have been studied using recent advanced observations from the Hinode spacecraft and other observatories in space and on the ground. These events occur at different locations in the solar atmosphere, and vary in their morphology and amount of the released energy. The magnetic field configurations of these reconnection events are inferred based on observations of magnetic fields at the photospheric level. Observations suggest that these magnetic configurations can be classified into two groups. In the first group, two anti-parallel magnetic fields reconnect to each other, yielding a 2D emerging flux configuration. In the second group, helical or twisted magnetic flux tubes are parallel or at a relative angle to each other. Reconne...

    12. Laser systems configured to output a spectrally-consolidated laser beam and related methods

      DOE Patents [OSTI]

      Koplow, Jeffrey P. (San Ramon, CA)

      2012-01-10

      A laser apparatus includes a plurality of pumps each of which is configured to emit a corresponding pump laser beam having a unique peak wavelength. The laser apparatus includes a spectral beam combiner configured to combine the corresponding pump laser beams into a substantially spatially-coherent pump laser beam having a pump spectrum that includes the unique peak wavelengths, and first and second selectively reflective elements spaced from each other to define a lasing cavity including a lasing medium therein. The lasing medium generates a plurality of gain spectra responsive to absorbing the pump laser beam. Each gain spectrum corresponds to a respective one of the unique peak wavelengths of the substantially spatially-coherent pump laser beam and partially overlaps with all other ones of the gain spectra. The reflective elements are configured to promote emission of a laser beam from the lasing medium with a peak wavelength common to each gain spectrum.

    13. E?H mode transition density and power in two types of inductively coupled plasma configuration

      SciTech Connect (OSTI)

      Wang, Jian; Du, Yin-chang; Zhang, Xiao; Zheng, Zhe; Liu, Yu; Xu, Liang; Wang, Pi; Cao, Jin-xiang, E-mail: jxcao@ustc.edu.cn [Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

      2014-07-15

      E???H transition power and density were investigated at various argon pressures in inductively coupled plasma (ICP) in a cylindrical interlaid chamber. The transition power versus the pressure shows a minimum transition power at 4?Pa (?/?=1) for argon. Then the transition density hardly changes at low pressures (?/??1), but it increases clearly when argon pressure exceeds an appropriate value. In addition, both the transition power and transition density are lower in the re-entrant configuration of ICP compared with that in the cylindrical configuration of ICP. The result may be caused from the decrease of stochastic heating in the re-entrant configuration of ICP. This work is useful to understand E???H mode transition and control the transition points in real plasma processes.

    14. Configurational Entropy in Brane-world Models: A New Approach to Stability

      E-Print Network [OSTI]

      R. A. C. Correa; Roldao da Rocha

      2015-02-10

      In this work we investigate the entropic information on thick brane-worlds scenarios and its consequences. The brane-world entropic information is studied for the sine-Gordon model is and hence the brane-world entropic information measure is shown an accurate way for providing the most suitable values for the bulk AdS curvature. Besides, the brane-world configurational entropy is employed to demonstrate a high organisational degree in the structure of the system configuration, for large values of a parameter of the sine-Gordon model but the one related to the AdS curvature. The Gleiser and Stamatopoulos procedure is finally applied in order to achieve a precise correlation between the energy of the system and the brane-world configurational entropy.

    15. Configurational Entropy in Brane-world Models: A New Approach to Stability

      E-Print Network [OSTI]

      Correa, R A C

      2015-01-01

      In this work we investigate the entropic information on thick brane-worlds scenarios and its consequences. The brane-world entropic information is studied for the sine-Gordon model is and hence the brane-world entropic information measure is shown an accurate way for providing the most suitable values for the bulk AdS curvature. Besides, the brane-world configurational entropy is employed to demonstrate a high organisational degree in the structure of the system configuration, for large values of a parameter of the sine-Gordon model but the one related to the AdS curvature. The Gleiser and Stamatopoulos procedure is finally applied in order to achieve a precise correlation between the energy of the system and the brane-world configurational entropy.

    16. Inductrack configuration

      DOE Patents [OSTI]

      Post, Richard Freeman (Walnut Creek, CA)

      2006-08-29

      A simple permanent-magnet-excited maglev geometry provides levitation forces and is stable against vertical displacements from equilibrium but is unstable against horizontal displacements. An Inductrack system is then used in conjunction with this system to effect stabilization against horizontal displacements and to provide centering forces to overcome centrifugal forces when the vehicle is traversing curved sections of a track or when any other transient horizontal force is present. In some proposed embodiments, the Inductrack track elements are also employed as the stator of a linear induction-motor drive and braking system.

    17. Inductrack configuration

      DOE Patents [OSTI]

      Post, Richard Freeman

      2003-10-07

      A simple permanent-magnet-excited maglev geometry provides levitation forces and is stable against vertical displacements from equilibrium but is unstable against horizontal displacements. An Inductrack system is then used in conjunction with this system to effect stabilization against horizontal displacements and to provide centering forces to overcome centrifugal forces when the vehicle is traversing curved sections of a track or when any other transient horizontal force is present. In some proposed embodiments, the Inductrack track elements are also employed as the stator of a linear induction-motor drive and braking system.

    18. Configurations The

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

      of thermal performance, leading to development of module-level temperature coefficients. Industry Outreach and Standards Utilizing more than 20 years of technical expertise to...

    19. Franklin Configuration

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServicesAmesFour Los Alamos projectsJohn

    20. System Configuration

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainable Landmimic key features of natural pores

    1. Hardware Configuration

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSCGrid-based29Hai

    2. Foil cycling technique for the VESUVIO spectrometer operating in the resonance detector configuration

      SciTech Connect (OSTI)

      Schooneveld, E. M.; Mayers, J.; Rhodes, N. J.; Pietropaolo, A.; Andreani, C.; Senesi, R.; Gorini, G.; Perelli-Cippo, E.; Tardocchi, M.

      2006-09-15

      This article reports a novel experimental technique, namely, the foil cycling technique, developed on the VESUVIO spectrometer (ISIS spallation source) operating in the resonance detector configuration. It is shown that with a proper use of two foils of the same neutron absorbing material it is possible, in a double energy analysis process, to narrow the width of the instrumental resolution of a spectrometer operating in the resonance detector configuration and to achieve an effective subtraction of the neutron and gamma backgrounds. Preliminary experimental results, obtained from deep inelastic neutron scattering measurements on lead, zirconium hydride, and deuterium chloride samples, are presented.

    3. Operational concepts and implementation strategies for the design configuration management process.

      SciTech Connect (OSTI)

      Trauth, Sharon Lee

      2007-05-01

      This report describes operational concepts and implementation strategies for the Design Configuration Management Process (DCMP). It presents a process-based systems engineering model for the successful configuration management of the products generated during the operation of the design organization as a business entity. The DCMP model focuses on Pro/E and associated activities and information. It can serve as the framework for interconnecting all essential aspects of the product design business. A design operation scenario offers a sense of how to do business at a time when DCMP is second nature within the design organization.

    4. RPM Assessment / Council document 2012-14 1 Assessment of the Regional

      E-Print Network [OSTI]

      .............................................................................................................32 4.3. Projected Work Items solutions for energy risk management, portfolio planning, and asset valuation for over two decades. His expertise with large-scale physical and financial risk modeling has proved his company, Ascend Analytics

    5. 3/23/2007 1 Update on Proposed New RPM 2.07 Policy

      E-Print Network [OSTI]

      Knowles, David William

      Energy Technologies) Dan Neumark (Chemical Sciences) Harry Reed (Workforce Diversity) Natalie Roe, Chair (Physics) Neville Smith (Advanced Light Source) Yvonne Tsang (Earth Sciences) · SAC reported their findings occur without ever competing in an open search, or only competing at the Postdoc level. Other · Term

    6. Dynamometer measurements of torque, rpm and power Velocity measurements with 3 synchronized acoustic

      E-Print Network [OSTI]

      Siefert, Chris

      and TurbulenceMethods Results ­ Spectra Plots Energy-Water-Ecosystems Engineering Wind and water Power. E. Email: nearyvs@ornl.gov http://www.esd.ornl.gov/WindWaterPower/ 1Point of Contact Experimental.P. Chamorro2, C. Hill2, B. Gunawan1, F. Sotiropoulos2 1Energy-Water-Ecosystems Engineering, Wind and Water

    7. B-RPM: An Efficient One-to-Many Communication Framework for On-Chip Networks 

      E-Print Network [OSTI]

      Shaukat, Noman

      2012-10-19

      The prevalence of multicore architectures has accentuated the need for scalable on-chip communication media. Various parallel applications and programming paradigms use a mix of unicast (one-to-one) and multicast (one-to-many) ...

    8. RPM-1 suppressors Act in synapse formation and axon termination in Caenorhabditis elegans

      E-Print Network [OSTI]

      Trujillo, Gloriana Victoria

      2010-01-01

      J Biol Chem 273, 15611-15620. Simmer, F. , Tijsterman, M. ,Kennedy et al. , 2004; Simmer et al. , 2002). eri-1(mg366)IVof RNAi in neurons (Simmer et al. , 2002; Wang and Barr,

    9. RPM §2.05. Employee Relations (Rev. 06/14)

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

      AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners * Impacts on Global TechnologyProceeding

    10. A Coupled Aero-Structural Optimization Method For Complete Aircraft Configurations

      E-Print Network [OSTI]

      Stanford University

      A Coupled Aero-Structural Optimization Method For Complete Aircraft Configurations James J. Reuther optimization of aero-structural systems. The framework permits the use of high-fidelity modeling of both de- scription, the information exchange between aero- dynamics and structures is accomplished through

    11. Sensor Configuration Selection for Discrete-Event Systems under Unreliable Observations

      SciTech Connect (OSTI)

      Wen-Chiao Lin; Tae-Sic Yoo; Humberto E. Garcia

      2010-08-01

      Algorithms for counting the occurrences of special events in the framework of partially-observed discrete event dynamical systems (DEDS) were developed in previous work. Their performances typically become better as the sensors providing the observations become more costly or increase in number. This paper addresses the problem of finding a sensor configuration that achieves an optimal balance between cost and the performance of the special event counting algorithm, while satisfying given observability requirements and constraints. Since this problem is generally computational hard in the framework considered, a sensor optimization algorithm is developed using two greedy heuristics, one myopic and the other based on projected performances of candidate sensors. The two heuristics are sequentially executed in order to find best sensor configurations. The developed algorithm is then applied to a sensor optimization problem for a multiunit- operation system. Results show that improved sensor configurations can be found that may significantly reduce the sensor configuration cost but still yield acceptable performance for counting the occurrences of special events.

    12. Optimizing the Configuration and Control of a Novel Human-Powered Energy Harvesting System

      E-Print Network [OSTI]

      Potkonjak, Miodrag

      . For example, a hydraulic-amplified piezo-electric based foot-strike energy harvesting system was proposedOptimizing the Configuration and Control of a Novel Human-Powered Energy Harvesting System Vishwa and energy efficient design, sampling, processing and communication techniques emerge to counter these issues

    13. Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000

      E-Print Network [OSTI]

      Blackwell, Keith

      Configure Microsoft Outlook 2011 for Mac HMS Help Desk: (617) 432-2000 HMS Help Desk: (617) 432-2000 2 · Click on the icon to the left Help Desk: (617) 432-2000 3 · Enter the following fields: o E

    14. Scalable network-on-chip architecture for configurable neural networks Dmitri Vainbrand

      E-Print Network [OSTI]

      Ginosar, Ran

      implementation Interconnect architecture a b s t r a c t Providing highly flexible connectivity is a major. The high level architectural framework for this research is a multiprocessing chip (CMP) comprising a largeScalable network-on-chip architecture for configurable neural networks Dmitri Vainbrand , Ran

    15. Simulations of the Electron Cloud Builld Up and Instabilities for Various ILC Damping Ring Configurations

      SciTech Connect (OSTI)

      Pivi, Mauro; Raubenheimer, Tor O.; Wang, Lanfa; Ohmi, Kazuhito; Wanzenberg, Rainer; Wolski, Andrzej; /Liverpool U. /Cockcroft Inst. Accel. Sci. Tech.

      2007-03-12

      In the beam pipe of the positron damping ring of the International Linear Collider (ILC), an electron cloud may be first produced by photoelectrons and ionization of residual gases and then increased by the secondary emission process. This paper reports the assessment of electron cloud effects in a number of configuration options for the ILC baseline configuration. Careful estimates were made of the secondary electron yield (sometimes in the literature also referred as secondary emission yield SEY or {delta}, with a peak value {delta}{sub max}) threshold for electron cloud build-up, and the related single- and coupled-bunch instabilities, as a function of beam current and surface properties for a variety of optics designs. When the configuration for the ILC damping rings was chosen at the end of 2005, the results from these studies were important considerations. On the basis of the joint theoretical and experimental work, the baseline configuration currently specifies a pair of 6 km damping rings for the positron beam, to mitigate the effects of the electron cloud that could present difficulties in a single 6 km ring. However, since mitigation techniques are now estimated to be sufficiently mature, a reduced single 6-km circumference is presently under consideration so as to reduce costs.

    16. Optimal Battery Configuration in a Residential Home with Time-of-Use Pricing

      E-Print Network [OSTI]

      Simunic, Tajana

      Optimal Battery Configuration in a Residential Home with Time-of-Use Pricing Baris Aksanli, USA {baksanli, tajana}@ucsd.edu Abstract--Residential energy consumption shows significant diurnal. INTRODUCTION AND RELATED WORK Residential energy consumption constitutes 38% of the total energy consumption

    17. Escape configuration lattice near the nematic-isotropic transition: Tilt analogue of blue phases

      E-Print Network [OSTI]

      Buddhapriya Chakrabarti; Yashodhan Hatwalne; N. V. Madhusudana

      2006-04-28

      We predict the possible existence of a new phase of liquid crystals near the nematic-isotropic ($ NI $) transition. This phase is an achiral, tilt-analogue of the blue phase and is composed of a lattice of {\\em double-tilt}, escape-configuration cylinders. We discuss the structure and the stability of this phase and provide an estimate of the lattice parameter.

    18. Investigating the Applicability of Architecture Description in Configuration Management and Software Deployment

      E-Print Network [OSTI]

      Wolf, Alexander L.

      potentially be used as an organizing abstraction for many of the activities in the software life cycleInvestigating the Applicability of Architecture Description in Configuration Management architecture has traditionally been concerned with high­level design. In particular, a variety of architecture

    19. TIPSTER Text Phase II Configuration Management Plan Version1.2p 3June1996

      E-Print Network [OSTI]

      Application LifeCycle The TIPSTER CM process imposes two control gates, PDR and FOC, on the TIPSTERTIPSTER Text Phase II Configuration Management Plan Version1.2p 3June1996 Architecture Committee Management (CM) Plan for identifying, controlling, and auditing the TIPSTER Architecture status

    20. Investigating the Applicability of Architecture Description in Configuration Management and Software Deployment

      E-Print Network [OSTI]

      van der Hoek, André

      potentially be used as an organizing abstraction for many of the activities in the software life cycleInvestigating the Applicability of Architecture Description in Configuration Management architecture has traditionally been concerned with high-level design. In particular, a variety of architecture

    1. Study of Equilibrium Operation by Rotating Magnetic Field Current Drive in Field-Reversed Configuration

      E-Print Network [OSTI]

      Washington at Seattle, University of

      penetrated into an FRC plasma is analytically given by [3] (1) (2) ( ) ( ) ( ) -= - ti r e kaiI kri (RMF) applied for the sake of maintaining Field Reversed Configuration (FRC) in steady state. The simple analytical model such as infinite-long plasma, rigidly rotating ions and electrons and uniform

    2. Maintaining the closed magnetic-field-line topology of a field-reversed configuration (FRC)

      E-Print Network [OSTI]

      not significantly change the FRC's closed field structure. The FRC is an example of a self-organized plasma wherein field-line closure analysis. The study of field-line closure for FRC-like plasmas with transverse1 Maintaining the closed magnetic-field-line topology of a field-reversed configuration (FRC

    3. Gyrokinetic Particle Simulation of a Field Reversed Configuration D. P. Fulton,1, a)

      E-Print Network [OSTI]

      Lin, Zhihong

      - erties favorable for fusion reactors. The FRC represents a high plasma with surprisingly good of the field-reversed configuration (FRC) has been developed using the gyrokinetic toroidal code (GTC). The magnetohydrodynamic equilibrium is mapped from cylindrical coordinates to Boozer coordinates for the FRC core

    4. Studies of Global Stability of FieldReversed Configuration Plasmas Using A Rigid Body Model

      E-Print Network [OSTI]

      ­reversed configuration (FRC) plasmas has been stud­ ied using a simple rigid body model in the parameter space (oblate), while the tilt stability of FRC's with large E (prolate) depends on s=E. It is found that plasma to be unstable to many global magnetohydrodynamic (MHD) modes. However, FRC plasmas formed in `­pinch devices

    5. A numerical study of rotating magnetic fields as a current drive for field reversed configurations

      E-Print Network [OSTI]

      Washington at Seattle, University of

      , confinement, and sustainment TCS 5 experiment, an RMF will be applied to an existing FRC. The plasma Richard D. Milroy University of Washington, Redmond Plasma Physics Laboratory, Seattle, Washington 98195 of a Rotating Magnetic Field RMF as a current drive mechanism in a Field Reversed Configuration FRC . This model

    6. Sustainment of elongated field reversed configurations with localized rotating magnetic field current drive

      E-Print Network [OSTI]

      Washington at Seattle, University of

      this by increasing its penetration into the FRC, brought about automatically by a slight decrease in plasma density current drive H. Y. Guo and A. L. Hoffman Redmond Plasma Physics Laboratory, University of Washington magnetic field RMF antenna length on the sustainment of RMF driven field reversed configurations FRC have

    7. THICK LIQUID-WALLED, FIELD-REVERSED CONFIGURATION* R. W. Moira

      E-Print Network [OSTI]

      California at Los Angeles, University of

      first wall. Although expected to be unstable to ideal MHD modes, experimental FRC plasmas have proved20--a liquid metal) protects the structural walls of the field-reversed configuration (FRC) so in an acceptable impurity level in the core plasma. The shielding of the core by the edge plasma is modeled

    8. Flux Generation and Sustainment of a Field Reversed Configuration (FRC) with Rotating

      E-Print Network [OSTI]

      Washington at Seattle, University of

      component: ur = -/B2 ·dpe/dr plasma diffuses radially outward With RMF: component: j = urBz - FRC cylinder: More accurately for FRC: #12;Screening of RMF Field by Plasma · Axial currents inside FRC limitFlux Generation and Sustainment of a Field Reversed Configuration (FRC) with Rotating Magnetic

    9. Studies of global stability of field-reversed configuration plasmas using a rigid body model

      E-Print Network [OSTI]

      Ji, Hantao

      stability of field-reversed configuration FRC plasmas has been studied using a simple rigid body model to be unstable to many global magnetohydrody- namic MHD modes. However, FRC plasmas formed in - pinch devices of motion for each global mode is formulated and analyzed using a rigid body model of the FRC plasma

    10. Penetration of a transverse magnetic field by an accelerated field-reversed configuration

      E-Print Network [OSTI]

      Washington at Seattle, University of

      . Slough and A. L. Hoffman Redmond Plasma Physics Laboratory, University of Washington, Seattle, Washington 98102 Received 23 June 1998; accepted 14 October 1998 The field-reversed configuration FRC is a compact. The study of the acceleration and penetration physics of the FRC into a transverse magnetic field gradient

    11. Tilt mode stability scaling in field-reversed configurations with finite Larmor radius effect

      E-Print Network [OSTI]

      Washington at Seattle, University of

      University, Ikarashi, Niigata 950-2181, Japan Loren C. Steinhauer University of Washington, Redmond Plasma stability of a static plasma with finite-Larmor-radius FLR effects depends on a combination of the FLR-reversed configuration FRC previous computations of these two factors led to a prediction of stability for S * (3 5)E

    12. Physics Overview of Rotating Magnetic Field Current Drive for a Field-Reversed Configuration

      E-Print Network [OSTI]

      Washington at Seattle, University of

      Richard D. Milroy Redmond Plasma Physics Laboratory, University of Washington Introduction A Rotating Magnetic Field (RMF) can be used to drive the current in a Field-Reversed Configuration (FRC). This method can be used to sustain an existing FRC, as well as generate a new FRC from a background pre

    13. Observations of improved confinement in field reversed configurations sustained by antisymmetric rotating magnetic fields

      E-Print Network [OSTI]

      Washington at Seattle, University of

      plasma, resulting in a mostly azimuthal field near the FRC separatrix with a very small radial component rotating magnetic fields H. Y. Guo, A. L. Hoffman, and L. C. Steinhauer Redmond Plasma Physics Laboratory in field reversed configurations FRC . A major concern about this method has been the fear of opening up

    14. Rotating magnetic field current drive of high-temperature field reversed configurations with high scaling

      E-Print Network [OSTI]

      Washington at Seattle, University of

      scaling H. Y. Guo,a A. L. Hoffman, and R. D. Milroy Redmond Plasma Physics Laboratory, University in the Translation, Confinement, and Sustainment--Upgrade TCSU device has allowed much higher plasma temperatures to be achieved in the field reversed configurations FRC under rotating magnetic field RMF formation

    15. Formation and steady-state maintenance of field reversed configuration using rotating magnetic field current drive

      E-Print Network [OSTI]

      Washington at Seattle, University of

      , the FRC simply expanded until it contacted the plasma tube wall.1­3 This resulted in relatively cold,a) and G. R. Votroubek Redmond Plasma Physics Laboratory, University of Washington, Seattle, Washington to both form and maintain field reversed configurations FRC in quasisteady state. These experiments differ

    16. Toroidal field stabilization of the rotational instability in field-reversed configurations

      E-Print Network [OSTI]

      Washington at Seattle, University of

      . Milroy1,2,a and L. C. Steinhauer2 1 Plasma Science and Innovation Center, Box 32250, University of Washington, Seattle, Washington 98195-2250, USA 2 Redmond Plasma Physics Laboratory, University of Washington in dynamically formed field-reversed configurations FRC . It generally appears as an m=2 mode azimuthal mode

    17. Transport, energy balance, and stability of a large field-reversed configuration*

      E-Print Network [OSTI]

      Washington at Seattle, University of

      . L. Hoffman, R. D. Milroy, R. Maqueda, and L. C Steinhauer University of Washington, Redmond Plasma-reversedthetapinch, whereplasmasconfinedin a field-reversedconfiguration(FRC) have exhibited record energy,particle, and configuration,quiescentFRCswith s values(thenumberof ion gyroradii from thefield null to theseparatrixof theFRC) aslargeas5. LSX

    18. Modelling of Field-reversed configuration experiment with large safety factor

      E-Print Network [OSTI]

      Washington at Seattle, University of

      confinement of the plasma. I. Introduction Field-reversed configurations (FRC) are a subclass of Compact of the plasma, and especially so at the edge. This surprising fact results from the large elongation of the FRC discusses the stability implications of high-q in FRC plasmas. Section V briefly presents other surprising

    19. The initial configuration is irrelevant for the possibility of mutual unbounded growth in the

      E-Print Network [OSTI]

      Häggström, Olle

      The initial configuration is irrelevant for the possibility of mutual unbounded growth in the two the growth of two competing infections on Zd . At time 0 two disjoint finite sets 1, 2 Zd are infected is irrelevant in deciding whether the event of mutual unbounded growth for the two infection types has positive

    20. A Configurable IC to Contol, Readout, and Calibrate an Array of Biosensors

      E-Print Network [OSTI]

      De Micheli, Giovanni

      A Configurable IC to Contol, Readout, and Calibrate an Array of Biosensors Sara S. Ghoreishizadeh bimolecular sensors as well as pH and temperature sensors for biosensor calibration. The IC supports both of the interface electronics, a unified circuit is designed for CV, CA and pH readout. The biosensors produce

    1. Introducing Automated Environment Configuration Testing in an Industrial Setting Caryna Pinheiro

      E-Print Network [OSTI]

      Sillito, Jonathan

      Introducing Automated Environment Configuration Testing in an Industrial Setting Caryna Pinheiro of Calgary {vgarousi,frank.maurer,sillito}@ucalgary.ca Abstract-- This paper presents an automated of staging environment instability in a large organization. We demonstrate how a suite of automated

    2. CONFIGURATION AND MAINTENANCE OF THE ARIES-ST POWER PLANT X.R. Wang,a

      E-Print Network [OSTI]

      CONFIGURATION AND MAINTENANCE OF THE ARIES-ST POWER PLANT X.R. Wang,a M.S. Tillack,a F ARIES-ST is a 1000 MWe fusion power plant based on a low aspect ratio "spherical torus" (ST) plasma availability of the power plant. Mechanical joints are poss- ible in the normal conducting single-turn toroidal

    3. CONFIGURATION AND MAINTENANCE OF THE ARIES-ST POWER PLANT X.R. Wang,a

      E-Print Network [OSTI]

      Najmabadi, Farrokh

      CONFIGURATION AND MAINTENANCE OF THE ARIES-ST POWER PLANT X.R. Wang,a M.S. Tillack,a F Abstract- ARIES-ST is a 1000 MWe fusion power plant based on a low aspect ratio "spherical torus" (ST availability of the power plant. Mechanical joints are possible in the normal conducting single-turn toroidal

    4. Toroidal configurations of perfect fluid in the Reissner-Nordström-(anti-)de Sitter spacetimes

      SciTech Connect (OSTI)

      Kucáková, Hana; Slaný, Petr; Stuchlík, Zden?k E-mail: petr.slany@fpf.slu.cz

      2011-01-01

      Influence of cosmological constant on toroidal fluid configurations around charged spherically symmetric black holes and naked singularities is demostrated by study of perfect-fluid tori with uniform distribution of specific angular momentum orbiting in the Reissner-Nordström-(anti-)de Sitter spacetimes. Toroidal configurations are allowed only in the spacetimes admitting existence of stable circular geodesics. Configurations with marginally closed equipotential (equipressure) surfaces crossing itself in a cusp allow accretion (through the inner cusp) and/or excretion (through the outer cusp) of matter from the toroidal configuration. Detailed classification of the Reissner-Nordström-(anti-)de Sitter spacetimes according to properties of the marginally stable tori is given. It is demonstrated that in the Reissner-Nordström-de Sitter naked-singularity spacetimes an interesting phenomenon of doubled tori can exist enabling exchange of matter between two tori in both inward and outward directions. In naked-singularity spacetimes the accretion onto the central singularity is impossible due to existence of a potential barrier.

    5. Calculation of Molecular Configuration Integrals Chia-En Chang, Michael J. Potter, and Michael K. Gilson*

      E-Print Network [OSTI]

      Chang, Chia-en "Angelina"

      and the design of self-assembling systems. Early methods of conformational analysis focused on the useCalculation of Molecular Configuration Integrals Chia-En Chang, Michael J. Potter, and Michael K Scanning, a fast correction for anharmonicity based upon internal bond-angle-torsion coordinates. Mode

    6. Development and Application of ANN Model for Worker Assignment into Virtual Cells of Large Sized Configurations

      SciTech Connect (OSTI)

      Murali, R. V.; Fathi, Khalid [Faculty Members, Department of Mechanical and Industrial Engineering, Caledonian College of Engineering (Oman); Puri, A. B. [Associate Professor, Department of Mechanical Engineering, NIT, Durgapur, West Bengal (India)

      2010-10-26

      This paper presents an extended version of study already undertaken on development of an artificial neural networks (ANNs) model for assigning workforce into virtual cells under virtual cellular manufacturing systems (VCMS) environments. Previously, the same authors have introduced this concept and applied it to virtual cells of two-cell configuration and the results demonstrated that ANNs could be a worth applying tool for carrying out workforce assignments. In this attempt, three-cell configurations problems are considered for worker assignment task. Virtual cells are formed under dual resource constraint (DRC) context in which the number of available workers is less than the total number of machines available. Since worker assignment tasks are quite non-linear and highly dynamic in nature under varying inputs and conditions and, in parallel, ANNs have the ability to model complex relationships between inputs and outputs and find similar patterns effectively, an attempt was earlier made to employ ANNs into the above task. In this paper, the multilayered perceptron with feed forward (MLP-FF) neural network model has been reused for worker assignment tasks of three-cell configurations under DRC context and its performance at different time periods has been analyzed. The previously proposed worker assignment model has been reconfigured and cell formation solutions available for three-cell configuration in the literature are used in combination to generate datasets for training ANNs framework. Finally, results of the study have been presented and discussed.

    7. Configuring ICEMail for Apple Mail for MacOS 10.10 Yosemite

      E-Print Network [OSTI]

      Chen, Yiling

      Configuring ICEMail for Apple Mail for MacOS 10.10 Yosemite Once you have received notification on at https://icemail.harvard.edu, you will need to add the new settings in Apple Mail. Step 1. Launch Mail the Accounts tab. And click on the + in the lower left corner. (See Figure 2) Figure 2 SEAS-ICE Apple Mail

    8. Derivation of the Configuration Interaction Singles (CIS) Method for Various Single Determinant References and

      E-Print Network [OSTI]

      Sherrill, David

      of Chemistry and Biochemistry Georgia Institute of Technology September 1996 1 Introduction The configuration% of the correlation energy for small molecules near their equilibrium geometries. Head-Gordon, Pople, and others have] list the following desirable properties of CIS: well defined (and differentiable), applicable to large

    9. The Effect of Thermal Load Configurations on Passive Chilled Beam Performance 

      E-Print Network [OSTI]

      Nelson, Ian 1982-

      2012-11-15

      dynamics (CFD) model was developed in Star CCM+ v6.06 and used for further analysis of the flow field and to predict additional spatial arrangements of the beam, interior dimensions, and heat source configurations. The CFD model implemented a calculation...

    10. A Quasi-continuous Interpolation Scheme for Pathways between Distant Configurations

      E-Print Network [OSTI]

      Carr, Joanne M.; Wales, David J.

      2012-08-28

      for Pathways Between Distant Configurations David J. Wales1?and Joanne M. Carr1† University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EW, UK June 11, 2012 ?dw34@cam.ac.uk †jmc49@cam.ac.uk 1 Abstract A quasi-continuous interpolation scheme...

    11. CRAD, Configuration Management- Oak Ridge National Laboratory High Flux Isotope Reactor Contractor ORR

      Broader source: Energy.gov [DOE]

      A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a February 2007 assessment of the Configuration Management Program portion of an Operational Readiness Review of the Oak Ridge National Laboratory, High Flux Isotope Reactor.

    12. Minimal Riesz energy point configurations for rectifiable d-dimensional manifolds

      E-Print Network [OSTI]

      Hardin, Doug

      , these results are new. Key words: Minimal discrete Riesz energy, Best-packing, Hausdorff measure, Rectifiable best-packing, mini- mization of energy (e.g., Coulomb potentials), spherical t-designs (cubatureMinimal Riesz energy point configurations for rectifiable d-dimensional manifolds D.P. Hardin

    13. Towards a Zero-Configuration Wireless Sensor Network Architecture for Smart Buildings

      E-Print Network [OSTI]

      Towards a Zero-Configuration Wireless Sensor Network Architecture for Smart Buildings Lars Schor. Within a smart building many sensors and actuators are interconnected to form a control system. Nowa system. A smart power outlet will report the current energy usage of the attached device to a central

    14. SUMTIME-MOUSAM: Configurable Marine Weather Forecast Generator Somayajulu G. Sripada and Ehud Reiter

      E-Print Network [OSTI]

      Sripada, Yaji

      turbines and neonatal intensive care unit (NICU). In the domain of gas turbines we are working on summarizing sensor data from an op- erational gas turbine (Yu et. al., 2003) for the maintenance engineersSUMTIME-MOUSAM: Configurable Marine Weather Forecast Generator Somayajulu G. Sripada and Ehud

    15. SUMTIME-MOUSAM: Configurable Marine Weather Forecast Generator Somayajulu G. Sripada and Ehud Reiter

      E-Print Network [OSTI]

      Reiter, Ehud

      turbines and neonatal intensive care unit (NICU). In the domain of gas turbines we are working on summarizing sensor data from an opera- tional gas turbine (Yu et. al., 2003) for the maintenance engineersSUMTIME-MOUSAM: Configurable Marine Weather Forecast Generator Somayajulu G. Sripada and Ehud

    16. DIVERTOR CONFIGURATION AND HEAT LOAD STUDIES FOR THE ARIES-CS

      E-Print Network [OSTI]

      Raffray, A. René

      flux control in a conceptual ARIES compact stellarator (CS) reactor is addressed. The goal is to de of the compact stellarator magnetic confinement concept as an attractive fusion power plant. ResearchDIVERTOR CONFIGURATION AND HEAT LOAD STUDIES FOR THE ARIES-CS FUSION POWER PLANT T. K. MAU,*a T. B

    17. Fusion Engineering and Design 81 (2006) 11591168 Major integration issues in evolving the configuration design

      E-Print Network [OSTI]

      Najmabadi, Farrokh

      2006-01-01

      Fusion Engineering and Design 81 (2006) 1159­1168 Major integration issues in evolving the configuration design space for the ARIES-CS compact stellarator power plant A.R. Raffraya,, S. Malangb, L. El, Fusion Technology Institute, Madison, WI 53706, USA d Forschungszentrum Karlsruhe (FZK), Euratom

    18. Planetary and Space Science 56 (2008) 17781784 Predictions and observations of events and configurations occurring

      E-Print Network [OSTI]

      Sicardy, Bruno

      2008-01-01

      and configurations occurring during the Uranian equinox Jean-Eudes ArlotÃ, Bruno Sicardy Paris Observatory of difficulties due to the faintness of the Uranian satellites and this proximity to the planet. 2. The equinox, 1990; Arlot, 2002; Arlot et al., 2006a, b). The equinox on Jupiter takes place every 6 years allowing

    19. Motion of charged particles in magnetic fields created by symmetric configurations of wires

      E-Print Network [OSTI]

      . Furthermore, the circular wire system can be interpreted as a simplified model of the levitated magnetic, this paper illustrates that very simple magnetic con- figurations can give rise to complicated, even chaoticMotion of charged particles in magnetic fields created by symmetric configurations of wires Jacobo

    20. Solar Energy Materials & Solar Cells 91 (2007) 13881391 Bifacial configurations for CdTe solar cells

      E-Print Network [OSTI]

      Romeo, Alessandro

      2007-01-01

      Solar Energy Materials & Solar Cells 91 (2007) 1388­1391 Bifacial configurations for CdTe solar Verona, Italy e Department of Electronic and Electrical Engineering, Centre for Renewable Energy Systems We present a different back contact for CdTe solar cell by the application of only a transparent

    1. String Tests of 3S1P Configurations for Electric Energy Storage Applications

      E-Print Network [OSTI]

      String Tests of 3S1P Configurations for Electric Energy Storage Applications Prepared for the UPConfigurationsfor ElectricEnergyStorageApplications Matthieu Dubarry and Bor Yann Liaw Hawaii Natural Energy ..................................................................................................................... 17 #12;2 1. INTRODUCTION As the scale of energy storage applications for electric grids

    2. Assessment of Microbial Fuel Cell Configurations and Power Bruce E. Logan,*,

      E-Print Network [OSTI]

      Assessment of Microbial Fuel Cell Configurations and Power Densities Bruce E. Logan,*, Maxwell J Information ABSTRACT: Different microbial electrochemical technologies are being developed for many diverse, and biosensors. Current and energy densities will always be limited relative to batteries and chemical fuel cells

    3. Configuration of Smart Environments Made Simple Combining Visual Modeling with Semantic Metadata and Reasoning

      E-Print Network [OSTI]

      Configuration of Smart Environments Made Simple Combining Visual Modeling with Semantic Metadata, Belgium Abstract--We present an approach that combines semantic metadata and reasoning with a visual' environment (e.g., smart thermostats) or provide relevant contextual information (e.g., motion sensors

    4. Mind Your Metadata: Exploiting Semantics for Configuration, Adaptation, and Provenance in

      E-Print Network [OSTI]

      Gil, Yolanda

      to the data. The metadata captured includes sensor descriptions, data characteristics, data types, and processMind Your Metadata: Exploiting Semantics for Configuration, Adaptation, and Provenance, mariam, fabio, knoblock}@isi.edu {tharmon, villamizar_amaya}@ucmerced.edu Abstract. Scientific metadata

    5. Green Move: a platform for highly configurable, heterogeneous electric vehicle sharing

      E-Print Network [OSTI]

      Cugola, Gianpaolo

      Green Move: a platform for highly configurable, heterogeneous electric vehicle sharing Andrea G the spreading of electric vehicles, in particular for what concerns the high upfront costs of the vehicles benefits. I. INTRODUCTION Electric vehicle sharing has the potential to provide a solution to many

    6. Error Tolerant Address Configuration for Data Center Networks with Malfunctioning Devices

      E-Print Network [OSTI]

      Chen, Yan

      Error Tolerant Address Configuration for Data Center Networks with Malfunctioning Devices Xingyu Ma to correct malfunctions and it can cause substantial operation delay of the whole data center. In this paper benefits because in most cases malfunctions in data centers only account for a very small portion

    7. Thermal radiation in non-static curved spacetimes: quantum mechanical path integrals and configuration space topology

      E-Print Network [OSTI]

      M. E. Ortiz; F. Vendrell

      1998-06-19

      A quantum mechanical path integral derivation is given of a thermal propagator in non-static Gui spacetime. The thermal nature of the propagator is understood in terms of homotopically non-trivial paths in the configuration space appropriate to tortoise coordinates. The connection to thermal emission from collapsing black holes is discussed.

    8. Dynamic Rupture through a Branched Fault Configuration at Yucca Mountain, and Resulting Ground Motions

      E-Print Network [OSTI]

      Dynamic Rupture through a Branched Fault Configuration at Yucca Mountain, and Resulting Ground of Yucca Mountain, Nevada, a potential site for a high-level radioactive waste repository. The Solitario km away from the SCF beneath the crest of Yucca Mountain, causing the repository site to experience

    9. Configuration Optimization of a Nanosphere Array on Top of a Thin Film Solar Cell

      E-Print Network [OSTI]

      Grandidier, Jonathan

      Configuration Optimization of a Nanosphere Array on Top of a Thin Film Solar Cell J. Grandidier photocurrent of the solar cell. On a typical thin film amorphous silicon solar cell, a parametric analysis of SiO2 spheres directly placed on top of a-Si [1] and gallium arsenide (GaAs) [3] solar cells. We

    10. Solar Energy Materials & Solar Cells 91 (2007) 13881391 Bifacial configurations for CdTe solar cells

      E-Print Network [OSTI]

      Romeo, Alessandro

      2007-01-01

      Solar Energy Materials & Solar Cells 91 (2007) 1388­1391 Bifacial configurations for CdTe solar We present a different back contact for CdTe solar cell by the application of only a transparent that acts as a free-Cu stable back contact and at the same time allows to realize bifacial CdTe solar cells

    11. Computational analysis of shrouded wind turbine configurations using a 3-dimensional RANS solver

      E-Print Network [OSTI]

      Alonso, Juan J.

      October 2014 Available online Keywords: Wind energy Shrouded wind turbines DAWT CFD Transition model a b presently confronting the widespread adoption of wind energy is cost. Improvements in wind turbineComputational analysis of shrouded wind turbine configurations using a 3-dimensional RANS solver

    12. Supersonic Bi-Directional Flying Wing Configuration with Low Sonic Boom and High Aerodynamic Efficiency

      E-Print Network [OSTI]

      Zha, Gecheng

      that propagates to ground from the shock waves created by a supersonic airplane and its components. PlotkinSupersonic Bi-Directional Flying Wing Configuration with Low Sonic Boom and High Aerodynamic@miami.edu Abstract In this paper, a parametric study is conducted to optimize a business jet using supersonic bi

    13. Numerical evaluation of one-loop diagrams near exceptional momentum configurations

      SciTech Connect (OSTI)

      Walter T Giele; Giulia Zanderighi; E.W.N. Glover

      2004-07-06

      One problem which plagues the numerical evaluation of one-loop Feynman diagrams using recursive integration by part relations is a numerical instability near exceptional momentum configurations. In this contribution we will discuss a generic solution to this problem. As an example we consider the case of forward light-by-light scattering.

    14. A Monte Carlo generator of nucleon configurations in complex nuclei including Nucleon-Nucleon correlations

      E-Print Network [OSTI]

      M. Alvioli; H. -J. Drescher; M. Strikman

      2009-09-04

      We developed a Monte Carlo event generator for production of nucleon configurations in complex nuclei consistently including effects of Nucleon-Nucleon (NN) correlations. Our approach is based on the Metropolis search for configurations satisfying essential constraints imposed by short- and long-range NN correlations, guided by the findings of realistic calculations of one- and two-body densities for medium-heavy nuclei. The produced event generator can be used for Monte Carlo (MC) studies of pA and AA collisions. We perform several tests of consistency of the code and comparison with previous models, in the case of high energy proton-nucleus scattering on an event-by-event basis, using nucleus configurations produced by our code and Glauber multiple scattering theory both for the uncorrelated and the correlated configurations; fluctuations of the average number of collisions are shown to be affected considerably by the introduction of NN correlations in the target nucleus. We also use the generator to estimate maximal possible gluon nuclear shadowing in a simple geometric model.

    15. Network configurations and R&D activities of the ICT industry in Suzhou municipality, China

      E-Print Network [OSTI]

      Wei, Yehua Dennis

      Network configurations and R&D activities of the ICT industry in Suzhou municipality, China Y in revised form 8 March 2011 Available online 25 June 2011 Keywords: Globalization ICT industry Innovation Regional development China a b s t r a c t This paper analyzes the network structure and R&D activities

    16. String Tests of 3S1P Configurations for Electric Energy Storage Applications

      E-Print Network [OSTI]

      String Tests of 3S1P Configurations for Electric Energy Storage Applications Prepared for the U.2 Deliverable 2 Report on Results of Storage Tests Prepared by Hawai`i Natural Energy Institute School of OceanPConfigurationsfor ElectricEnergyStorageApplications Matthieu Dubarry and Bor Yann Liaw Hawaii Natural Energy

    17. RF-MEMS Capacitive Series Switches of CPW & MSL Configurations for Reconfigurable Antenna Application

      E-Print Network [OSTI]

      De Flaviis, Franco

      RF-MEMS Capacitive Series Switches of CPW & MSL Configurations for Reconfigurable Antenna, University of California Irvine, Irvine, CA, 92697 Abstract: The air-bridged RF-MEMS switches in single pole) and coplanar waveguide (CPW) structures. RF-MEMS series switches are monolithic fabricated in both transmission

    18. Report of the final configuration of the Johnson Noise Thermometry System

      SciTech Connect (OSTI)

      Britton, Jr., Charles L.; Ezell, N. Dianne Bull; Roberts, Michael

      2014-02-01

      This document is a report on the final box and software configuration of the Johnson Noise Thermometry System being developed at ORNL. Much of this has been reported previously so that this report will be a systems-level summary of those reports, In addition we will describe some of the issues encountered during development.

    19. Configurable and Adaptive Middleware for Energy-Efficient Distributed Mobile Computing

      E-Print Network [OSTI]

      Ryder, Barbara G.

      Configurable and Adaptive Middleware for Energy-Efficient Distributed Mobile Computing Young Department of Computer Science, Virginia Tech tilevich@cs.vt.edu Abstract. The energy demands of modern mobile devices are outstrip- ping their battery lives. As a result, energy efficiency--fitting an energy

    20. Interprocedural Placement-Aware Configuration Prefetching for FPGA-based Systems

      E-Print Network [OSTI]

      Teich, Jürgen

      impediments to deploying par- tially run-time reconfigurable FPGAs as hardware accelerators is the time overhead involved in loading the hardware mod- ules. While configuration prefetching is an effective method of hardware modules, our algorithm predicts hardware execution and tries to prefetch hardware modules as early

    1. Optimal noise suppression in Fresnel incoherent correlation holography (FINCH) configured for

      E-Print Network [OSTI]

      Rosen, Joseph

      Optimal noise suppression in Fresnel incoherent correlation holography (FINCH) configured 131543); published 14 October 2010 An optimal setup in the sense of imaging resolution for the Fresnel of America OCIS codes: 090.1995, 030.6140, 110.4280. 1. Introduction Fresnel incoherent correlation

    2. Hylleraas-configuration-interaction study of the {sup 1}S ground state of neutral beryllium

      SciTech Connect (OSTI)

      Sims, James S.; Hagstrom, Stanley A. [National Institute of Standards and Technology, Gaithersburg, Maryland 20878-9957 (United States); Departments of Chemistry and Computer Science, Indiana University, Bloomington, Indiana 47405 (United States)

      2011-03-15

      Hylleraas-configuration-interaction (Hy-CI) method variational calculations are reported for the {sup 1}S ground state of neutral beryllium. The best nonrelativistic energy obtained was -14.667 356 4 hartree, which is estimated to be accurate to a tenth of a microhartree.

    3. Hill Climbing Algorithms for Content-Based Retrieval of Similar Configurations

      E-Print Network [OSTI]

      Papadias, Dimitris

      Hill Climbing Algorithms for Content-Based Retrieval of Similar Configurations Dimitris Papadias Department of Computer Science Hong Kong University of Science and Technology Clear Water Bay, Hong Kong +852 is an important form of content-based retrieval. Exhaustive processing (i.e., retrieval of the best solutions

    4. Method for preparing configured silicon carbide whisker-reinforced alumina ceramic articles

      DOE Patents [OSTI]

      Tiegs, Terry N. (Lenoir City, TN)

      1987-01-01

      A ceramic article of alumina reinforced with silicon carbide whiskers suitable for the fabrication into articles of complex geometry are provided by pressureless sintering and hot isostatic pressing steps. In accordance with the method of the invention a mixture of 5 to 10 vol. % silicon carbide whiskers 0.5 to 5 wt. % of a sintering aid such as yttria and the balance alumina powders is ball-milled and pressureless sintered in the desired configuration in the desired configuration an inert atmosphere at a temperature of about 1800.degree. C. to provide a self-supporting configured composite of a density of at least about 94% theoretical density. The composite is then hot isostatically pressed at a temperature and pressure adequate to provide configured articles of at least about 98% of theoretical density which is sufficient to provide the article with sufficient strength and fracture toughness for use in most structural applications such as gas turbine blades, cylinders, and other components of advanced heat engines.

    5. THE JOURNAL OF CHEMICAL PHYSICS 140, 044317 (2014) Size-extensivity-corrected multireference configuration interaction

      E-Print Network [OSTI]

      Florian, Libisch

      2014-01-01

      configuration interaction schemes to accurately predict bond dissociation energies of oxygenated hydrocarbons and Computational Mathematics, Princeton University, Princeton, New Jersey 08544, USA 6 Andlinger Center for Energy science as renewable fuels and additives, but many details about their combustion chemistry remain poorly

    6. CRAD, Configuration Management- Oak Ridge National Laboratory High Flux Isotope Reactor

      Broader source: Energy.gov [DOE]

      A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a February 2007 assessment of the Configuration Management Program in preparation for restart of the Oak Ridge National Laboratory, High Flux Isotope Reactor.

    7. StarVis: A Configural Decision Support Tool for Schedule Management of Multiple Unmanned Aerial Vehicles

      E-Print Network [OSTI]

      Cummings, Mary "Missy"

      in Aeronautics and Astronautics Abstract As unmanned aerial vehicles (UAVs) become increasingly autonomousStarVis: A Configural Decision Support Tool for Schedule Management of Multiple Unmanned Aerial Aerial Vehicles by Amy S. Brzezinski Submitted to the Department of Aeronautics and Astronautics

    8. SPARQL SAHA, a Configurable Linked Data Editor and Browser as a Service

      E-Print Network [OSTI]

      Hyvönen, Eero

      SPARQL SAHA, a Configurable Linked Data Editor and Browser as a Service Eetu Mäkelä and Eero first.last@aalto.fi, http://www.seco.tkk.fi/ Abstract. SPARQL SAHA is a linked data editor and browser it was deduced that the SPARQL SAHA linked data editor and browser presented in this paper still has a particular

    9. Translocation of polymers with folded configurations across nanopores Stanislav Kotsev and Anatoly B. Kolomeiskya

      E-Print Network [OSTI]

      Translocation of polymers with folded configurations across nanopores Stanislav Kotsev and Anatoly August 2007; accepted 26 September 2007; published online 9 November 2007 The transport of polymers segment through the channel followed by the linear part of the polymer. The transition rates vary

    10. IV. STATION CONFIGURATION AND SENSOR COMPARISONS Comparison of solar radiation data gathered at

      E-Print Network [OSTI]

      Oregon, University of

      8 IV. STATION CONFIGURATION AND SENSOR COMPARISONS Comparison of solar radiation data gathered of the instruments used to monitor the incident solar radiation. Five types of so- lar sensors and several different data loggers have been used to gather the solar radiation data presented in this data book

    11. A Single Tower Configuration of the Modular Gamma Box Counter System - 13392

      SciTech Connect (OSTI)

      Morris, K.; Nakazawa, D.; Francalangia, J.; Gonzalez, H.

      2013-07-01

      Canberra's Standard Gamma Box Counter System is designed to perform accurate quantitative assays of gamma emitting nuclides for a wide range of large containers including B-25 crates and ISO shipping containers. Using a modular building-block approach, the system offers tremendous flexibility for a variety of measurement situations with wide ranges of sample activities and throughput requirements, as well as the opportunity to modify the configuration for other applications at a later date. The typical configuration consists of two opposing towers each equipped with two high purity germanium detectors, and an automated container trolley. This paper presents a modified configuration, consisting of a single tower placed inside a measurement trailer with three detector assemblies, allowing for additional vertical segmentation as well as a viewing a container outside the trailer through the trailer wall. An automatic liquid nitrogen fill system is supplied for each of the detectors. The use of a forklift to move the container for horizontal segmentation is accommodated by creating an additional operational and calibration set-up in the NDA 2000 software to allow for the operator to rotate the container and assay the opposite side, achieving the same sensitivity as a comparable two-tower system. This Segmented Gamma Box Counter System retains the core technologies and design features of the standard configuration. The detector assemblies are shielded to minimize interference from environmental and plant background, and are collimated to provide segmentation of the container. The assembly positions can also be modified in height and distance from the container. The ISOCS calibration software provides for a flexible approach to providing the calibrations for a variety of measurement geometries. The NDA 2000 software provides seamless operation with the current configuration, handling the data acquisition and analysis. In this paper, an overview of this system is discussed, along with the measured performance results, calibration methodology and verification, and minimum detectable activity levels. (authors)

    12. Configuring Entourage 2008 w/ Exchange Web Services. Note: These instruction assume that the Exchange Web Services (EWS) Update

      E-Print Network [OSTI]

      Zhang, Yi

      Configuring Entourage 2008 w/ Exchange Web Services. Note: These instruction assume that the Exchange Web Services (EWS) Update , also known as Entourage 13.0, has already been

    13. The effect of different eLISA-like configurations on massive black hole parameter estimation

      E-Print Network [OSTI]

      Edward K. Porter

      2015-05-29

      As the theme for the future L3 Cosmic Vision mission, ESA has recently chosen the `Gravitational Wave Universe'. Within this call, a mission concept called eLISA has been proposed. This observatory has a current initial configuration consisting of 4 laser links between the three satellites, which are separated by a distance of one million kilometers, constructing a single channel Michelson interferometer. However, the final configuration for the observatory will not be fixed until the end of this decade. With this in mind, we investigate the effect of different eLISA-like configurations on massive black hole detections. This work compares the results of a Bayesian inference study of 120 massive black hole binaries out to a redshift of $z\\sim13$ for a $10^6$m arm-length eLISA with four and six links, as well as a $2\\times10^6$m arm-length observatory with four links. We demonstrate that the original eLISA configuration should allow us to recover the luminosity distance of the source with an error of less than 10% out to a redshift of $z\\sim4$, and a sky error box of $\\leq10^2\\,deg^2$ out to $z\\sim0.1$. In contrast, both alternative configurations suggest that we should be able to conduct the same parameter recovery with errors of less than 10% in luminosity distance out to $z\\sim12$ and $\\leq10^2\\,deg^2$ out to $z\\sim0.4$. Using the information from these studies, we also infer that if we were able to construct a 2Gm, 6-link detector, the above values would shift to $z\\sim20$ for luminosity distance and $z\\sim0.9$ for sky error. While the final configuration will also be dependent on both technological and financial considerations, our study suggests that increasing the size of a two arm detector is a viable alternative to the inclusion of a third arm in a smaller detector. More importantly, this work further suggests no clear scientific loss between either choice.

    14. A heat & mass integration approach to reduce capital and operating costs of a distillation configuration

      SciTech Connect (OSTI)

      Madenoor Ramapriya, Gautham; Jiang, Zheyu; Tawarmalani, Mohit; Agrawal, Rakesh

      2015-11-11

      We propose a general method to consolidate distillation columns of a distillation configuration using heat and mass integration. The proposed method encompasses all heat and mass integrations known till date, and includes many more. Each heat and mass integration eliminates a distillation column, a condenser, a reboiler and the heat duty associated with a reboiler. Thus, heat and mass integration can potentially offer significant capital and operating cost benefits. In this talk, we will study the various possible heat and mass integrations in detail, and demonstrate their benefits using case studies. This work will lay out a framework to synthesize an entire new class of useful configurations based on heat and mass integration of distillation columns.

    15. Upgrade of the ATLAS Control and Configuration Software for Run 2

      E-Print Network [OSTI]

      Avolio, Giuseppe; The ATLAS collaboration; Anders, Gabriel; Caprini, Mihai; Corso-Radu, Alina; D'ascanio, Matteo; De Castro Vargas Fernandes, Julio; Dova, Maria-Teresa; Kazarov, Andrei; Klopov, Nikolai; Kolobara, Bernard; Kotov, Vladislav; Lankford, Andrew; Laurent, Florian; Lehmann Miotto, Giovanna; Magnoni, Luca; Olechko, Serguei; Papaevgeniou, Lykourgos; Ryabov, Yury; Santos, Alejandro; Scannicchio, Diana; Seixas, Jose; Soloviev, Igor; Unel, Gokhan; Yasu, Yoshiji

      2015-01-01

      The ATLAS data acquisition (DAQ) system is controlled and configured via a software infrastructure that takes care of coherently orchestrating the data taking. While the overall architecture, established at the end of the 90’s, has proven to be solid and flexible, many software components have undergone a complete redesign or re-implementation in 2013/2014 in order to fold-in the additional requirements that appeared in the course of LHC’s Run 1, to profit from new technologies and to re-factorise and cleanup software. This paper describes the approach that was taken to plan, organise and carry out this software upgrade project. It highlights the main technical choices that have guided the overall work, describes the major achievements and outlines how the control and configuration software may be further improved or re-shaped in the future.

    16. Multi-reactor power system configurations for multimegawatt nuclear electric propulsion

      SciTech Connect (OSTI)

      George, J.A.

      1991-09-01

      A modular, multi-reactor power system and vehicle configuration for piloted nuclear electric propulsion (NEP) missions to Mars is presented. Such a design could provide enhanced system and mission reliability, allowing a comfortable safety margin for early manned flights, and would allow a range of piloted and cargo missions to be performed with a single power system design. Early use of common power modules for cargo missions would also provide progressive flight experience and validation of standardized systems for use in later piloted applications. System and mission analysis are presented to compare single and multi-reactor configurations for piloted Mars missions. A conceptual design for the Hydra modular multi-reactor NEP vehicle is presented.

    17. Development of a simple 2.45 GHz microwave plasma with a repulsive double hexapole configuration

      SciTech Connect (OSTI)

      Arciaga, Marko; Ulano, April; Lee, Henry Jr.; Lledo, Rumar; Ramos, Henry; Tumlos, Roy

      2008-09-15

      A simple and inexpensive 2.45 GHz microwave plasma source with a repulsive double hexapole configuration is described and characterized. In this work, the operation of the source is shown to be flexible in terms of electron density, electron temperature, and plasma uniformity even at low-pressures (approximately millitorr). It allows for easy control of the electron temperature (2-3.8 eV) and density ({approx}10{sup 9}-10{sup 10} cm{sup -3}) by removing either of the two hexapoles or by varying the separation distance between the two hexapoles. Characterization was done via information gathered from the usual Langmuir probe measurements for electron temperature and density. The source makes a resonant surface with its repulsive double hexapole magnetic configuration providing an additional longitudinal confinement near the walls midway between the two hexapoles. Magnetic field maps are presented for varying double hexapole distances. Power delivery for various settings is also presented.

    18. A general end point free energy calculation method based on microscopic configurational space coarse-graining

      E-Print Network [OSTI]

      Tian, Pu

      2015-01-01

      Free energy is arguably the most important thermodynamic property for physical systems. Despite the fact that free energy is a state function, presently available rigorous methodologies, such as those based on thermodynamic integration (TI) or non-equilibrium work (NEW) analysis, involve energetic calculations on path(s) connecting the starting and the end macrostates. Meanwhile, presently widely utilized approximate end-point free energy methods lack rigorous treatment of conformational variation within end macrostates, and are consequently not sufficiently reliable. Here we present an alternative and rigorous end point free energy calculation formulation based on microscopic configurational space coarse graining, where the configurational space of a high dimensional system is divided into a large number of sufficiently fine and uniform elements, which were termed conformers. It was found that change of free energy is essentially decided by change of the number of conformers, with an error term that accounts...

    19. Arch-based configurations in the volume ensemble of static granular systems

      E-Print Network [OSTI]

      D. Slobinsky; Luis A. Pugnaloni

      2014-11-27

      We propose an alternative approach to count the microscopic static configurations of granular packs under gravity by considering arches. This strategy simplifies the problem of filtering out configurations that are not mechanically stable, opening the way for a range of granular models to be studied via ensemble theory. Following this arch-based approach, we have obtained the exact density of states for a two-dimensional non-interacting rigid arch model of granular assemblies. The calculated arch size distribution and volume fluctuations show qualitative agreement with realistic simulations of tapped granular beds. We have also validated our calculations by comparing with the analytic solution for the limiting case of a quasi-one-dimensional column of frictionless disks.

    20. Photovoltaic power converter system with a controller configured to actively compensate load harmonics

      DOE Patents [OSTI]

      de Rooij, Michael Andrew (Clifton Park, NY); Steigerwald, Robert Louis (Burnt Hills, NY); Delgado, Eladio Clemente (Burnt Hills, NY)

      2008-12-16

      Photovoltaic power converter system including a controller configured to reduce load harmonics is provided. The system comprises a photovoltaic array and an inverter electrically coupled to the array to generate an output current for energizing a load connected to the inverter and to a mains grid supply voltage. The system further comprises a controller including a first circuit coupled to receive a load current to measure a harmonic current in the load current. The controller includes a second circuit to generate a fundamental reference drawn by the load. The controller further includes a third circuit for combining the measured harmonic current and the fundamental reference to generate a command output signal for generating the output current for energizing the load connected to the inverter. The photovoltaic system may be configured to compensate harmonic currents that may be drawn by the load.

    1. Multireference configuration interaction calculations of the first six ionization potentials of the uranium atom

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Bross, David H.; Parmar, Payal; Peterson, Kirk A.

      2015-11-12

      The first 6 ionization potentials (IPs) of the uranium atom have been calculated using multireference configuration interaction (MRCI+Q) with extrapolations to the complete basis set (CBS) limit using new all-electron correlation consistent basis sets. The latter were carried out with the third-order Douglas-Kroll-Hess Hamiltonian. Correlation down through the 5s5p5d electrons have been taken into account, as well as contributions to the IPs due to the Lamb shift. Spin-orbit coupling contributions calculated at the 4-component Kramers restricted configuration interaction level, as well as the Gaunt term computed at the Dirac-Hartree-Fock level, were added to the best scalar relativistic results. As amore »result, the final ionization potentials are expected to be accurate to at least 5 kcal/mol (0.2 eV), and thus more reliable than the current experimental values of IP3 through IP6.« less

    2. Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration

      DOE Patents [OSTI]

      Vinegar, Harold J. (Bellaire, TX); Sandberg, Chester Ledlie (Palo Alto, CA)

      2010-11-09

      A heating system for a subsurface formation is described. The heating system includes a first heater, a second heater, and a third heater placed in an opening in the subsurface formation. Each heater includes: an electrical conductor; an insulation layer at least partially surrounding the electrical conductor; and an electrically conductive sheath at least partially surrounding the insulation layer. The electrical conductor is electrically coupled to the sheath at a lower end portion of the heater. The lower end portion is the portion of the heater distal from a surface of the opening. The first heater, the second heater, and the third heater are electrically coupled at the lower end portions of the heaters. The first heater, the second heater, and the third heater are configured to be electrically coupled in a three-phase wye configuration.

    3. Analytic nuclear forces and molecular properties from full configuration interaction quantum Monte Carlo

      E-Print Network [OSTI]

      Thomas, Robert E; Overy, Catherine; Knowles, Peter J; Alavi, Ali; Booth, George H

      2015-01-01

      Unbiased stochastic sampling of the one- and two-body reduced density matrices is achieved in full configuration interaction quantum Monte Carlo with the introduction of a second, "replica" ensemble of walkers, whose population evolves in imaginary time independently from the first, and which entails only modest additional computational overheads. The matrices obtained from this approach are shown to be representative of full configuration-interaction quality, and hence provide a realistic opportunity to achieve high-quality results for a range of properties whose operators do not necessarily commute with the hamiltonian. A density-matrix formulated quasi-variational energy estimator having been already proposed and investigated, the present work extends the scope of the theory to take in studies of analytic nuclear forces, molecular dipole moments and polarisabilities, with extensive comparison to exact results where possible. These new results confirm the suitability of the sampling technique and, where suf...

    4. An object-oriented approach to deploying highly configurable web interfaces for the ATLAS experiment

      E-Print Network [OSTI]

      Lange Ramos, Bruno; The ATLAS collaboration; Pommes, Kathy; Pavani Neto, Varlen; Vieira Arosa, Breno

      2015-01-01

      In order to manage a heterogeneous and worldwide collaboration, the ATLAS experiment develops web systems that range from supporting the process of publishing scientific papers to monitoring equipment radiation levels. These systems are vastly supported by Glance, a technology that was set forward in 2004 to create an abstraction layer on top of varied databases that automatically recognizes their modeling and generate web search interfaces. Fence (Front ENd ENgine for glaNCE) assembles classes to build applications by making extensive use of configuration files. It produces templates of the core JSON files on top of which it is possible to create Glance-compliant search interfaces. Once the database, its schemas and tables are defined using Glance, its records can be incorporated into the templates by escaping the returned values with a reference to the column identifier wrapped around double enclosing brackets. The developer may also expand on available configuration files to create HTML forms and securely ...

    5. An object-oriented approach to deploying highly configurable Web interfaces for the ATLAS experiment

      E-Print Network [OSTI]

      Lange Ramos, Bruno; The ATLAS collaboration; Pommes, Kathy; Pavani Neto, Varlen; Vieira Arosa, Breno; Abreu Da Silva, Igor

      2015-01-01

      The ATLAS Technical Coordination disposes of 17 Web systems to support its operation. These applications, whilst ranging from supporting the process of publishing scientific papers to monitoring radiation levels in the equipment at the cave, are constantly prone to changes in requirements due to the collaborative nature of the experiment and its management. In this context, a Web framework is proposed to unify the generation of the supporting interfaces. Fence assembles classes to build applications by making extensive use of JSON configuration files. It relies vastly on Glance, a technology that was set forth in 2003 to create an abstraction layer on top of the heterogeneous sources that store the technical coordination data. Once Glance maps out the database modeling, records can be referenced in the configuration files by wrapping unique identifiers around double enclosing brackets. The deployed content can be individually secured by attaching clearance attributes to their description thus ensuring that vi...

    6. Formation of a field reversed configuration for magnetic and electrostatic confinement of plasma

      DOE Patents [OSTI]

      Rostoker, Norman; Binderbauer, Michl

      2003-12-16

      A system and method for containing plasma and forming a Field Reversed Configuration (FRC) magnetic topology are described in which plasma ions are contained magnetically in stable, non-adiabatic orbits in the FRC. Further, the electrons are contained electrostatically in a deep energy well, created by tuning an externally applied magnetic field. The simultaneous electrostatic confinement of electrons and magnetic confinement of ions avoids anomalous transport and facilitates classical containment of both electrons and ions. In this configuration, ions and electrons may have adequate density and temperature so that upon collisions they are fused together by nuclear force, thus releasing fusion energy. Moreover, the fusion fuel plasmas that can be used with the present confinement system and method are not limited to neutronic fuels only, but also advantageously include advanced fuels.

    7. Formation of a field reversed configuration for magnetic and electrostatic confinement of plasma

      DOE Patents [OSTI]

      Rostoker, Norman; Binderbauer, Michl; Qerushi, Artan; Tahsiri, Hooshang

      2007-02-20

      A system and method for containing plasma and forming a Field Reversed Configuration (FRC) magnetic topology are described in which plasma ions are contained magnetically in stable, non-adiabatic orbits in the FRC. Further, the electrons are contained electrostatically in a deep energy well, created by tuning an externally applied magnetic field. The simultaneous electrostatic confinement of electrons and magnetic confinement of ions avoids anomalous transport and facilitates classical containment of both electrons and ions. In this configuration, ions and electrons may have adequate density and temperature so that upon collisions they are fused together by nuclear force, thus releasing fusion energy. Moreover, the fusion fuel plasmas that can be used with the present confinement system and method are not limited to neutronic fuels only, but also advantageously include advanced fuels.

    8. Formation of a field reversed configuration for magnetic and electrostatic confinement of plasma

      DOE Patents [OSTI]

      Rostoker, Norman; Binderbauer, Michl; Qerushi, Artan; Tahsiri, Hooshang

      2006-02-07

      A system and method for containing plasma and forming a Field Reversed Configuration (FRC) magnetic topology are described in which plasma ions are contained magnetically in stable, non-adiabatic orbits in the FRC. Further, the electrons are contained electrostatically in a deep energy well, created by tuning an externally applied magnetic field. The simultaneous electrostatic confinement of electrons and magnetic confinement of ions avoids anomalous transport and facilitates classical containment of both electrons and ions. In this configuration, ions and electrons may have adequate density and temperature so that upon collisions they are fused together by nuclear force, thus releasing fusion energy. Moreover, the fusion fuel plasmas that can be used with the present confinement system and method are not limited to neutronic fuels only, but also advantageously include advanced fuels.

    9. A comparison of the radiation tolerance characteristics of multijunction solar cells with series and voltage-matched configurations

      SciTech Connect (OSTI)

      Gee, J.M; Curtis, H.B.

      1988-01-01

      The effect of series and voltage-matched configurations on the performance of multijunction solar cells in a radiation environment was investigated. It was found that the configuration of the multijunction solar cell can have a significant impact on its radiation tolerence characteristics.

    10. March 5, 2015 ITCS QUICK REFERENCE GUIDE: CONFIGURE AIRWATCH FOR APPLE Page 1 2015 ITCS East Carolina University

      E-Print Network [OSTI]

      Gopalakrishnan, K.

      March 5, 2015 ITCS QUICK REFERENCE GUIDE: CONFIGURE AIRWATCH FOR APPLE Page 1 © 2015 ITCS East getting started, have ready: 1. Apple ID for access to the App Store 2. PirateID/passphrase 3 GUIDE: CONFIGURE AIRWATCH FOR APPLE Page 2 © 2015 ITCS East Carolina University Step 6. You should now

    11. Configuration of Web Services as Parametric Design Annette ten Teije 1 and Frank van Harmelen2 and Bob Wielinga3

      E-Print Network [OSTI]

      van Harmelen, Frank

      Configuration of Web Services as Parametric Design Annette ten Teije 1 and Frank van Harmelen2 and Bob Wielinga3 Abstract. The configuration of composite Web services is partic- ularly hard given the heterogeneous, unreliable and open nature of the Web. Furthermore, such composite Web services are likely

    12. 29.01.03.M1.13 Information Resources Network Configuration Page 1 of 3 STANDARD ADMINISTRATIVE PROCEDURE

      E-Print Network [OSTI]

      29.01.03.M1.13 Information Resources ­ Network Configuration Page 1 of 3 STANDARD ADMINISTRATIVE PROCEDURE 29.01.03.M1.13 Information Resources ­Network Configuration Approved July 18, 2005 Revised for change of the network infrastructure. Definitions Information Resources (IR) - the procedures, equipment

    13. VKI lecture series on Innovative Configurations and Advanced Concepts for Future Civil Aircraft June 6-10, 2005

      E-Print Network [OSTI]

      Stanford University

      , the lift-to-drag ratio of a supersonic airplane is typically half that of subsonic aircraft and continues June 6-10, 2005 1 UNCONVENTIONAL CONFIGURATIONS FOR EFFICIENT SUPERSONIC FLIGHT I. Kroo Stanford University, U.S.A. 1. Summary Alternative configurations for more efficient supersonic aircraft are suggested

    14. Magneto-elastic oscillations of neutron stars: exploring different magnetic field configurations

      E-Print Network [OSTI]

      Michael Gabler; Pablo Cerdá-Durán; José A. Font; Ewald Müller; Nikolaos Stergioulas

      2013-02-27

      We study magneto-elastic oscillations of highly magnetized neutron stars (magnetars) which have been proposed as an explanation for the quasi-periodic oscillations (QPOs) appearing in the decaying tail of the giant flares of soft gamma-ray repeaters (SGRs). We extend previous studies by investigating various magnetic field configurations, computing the Alfv\\'en spectrum in each case and performing magneto-elastic simulations for a selected number of models. By identifying the observed frequencies of 28 Hz (SGR 1900+14) and 30 Hz (SGR 1806-20) with the fundamental Alfv\\'en QPOs, we estimate the required surface magnetic field strength. For the magnetic field configurations investigated (dipole-like poloidal, mixed toroidal-poloidal with a dipole-like poloidal component and a toroidal field confined to the region of field lines closing inside the star, and for poloidal fields with an additional quadrupole-like component) the estimated dipole spin-down magnetic fields are between 8x10^14 G and 4x10^15 G, in broad agreement with spin-down estimates for the SGR sources producing giant flares. A number of these models exhibit a rich Alfv\\'en continuum revealing new turning points which can produce QPOs. This allows one to explain most of the observed QPO frequencies as associated with magneto-elastic QPOs. In particular, we construct a possible configuration with two turning points in the spectrum which can explain all observed QPOs of SGR 1900+14. Finally, we find that magnetic field configurations which are entirely confined in the crust (if the core is assumed to be a type I superconductor) are not favoured, due to difficulties in explaining the lowest observed QPO frequencies (f<30 Hz).

    15. Evaluation of tire pressure, tire construction, axle configuration, and axle load on flexible pavement performance 

      E-Print Network [OSTI]

      Jamy, Ahmad Najeeb

      1991-01-01

      as to style and content by: obe L. Lytton (Ch ' of Committee) mm el G. Fernando (Member) 01 a J Pendleton (Member) J es T. P. Yao (Head of Department) August 1991 ABSTRACT Evaluation of Tire Pressure, Tire Construction, Axle Configuration, and Axle...=triple) Tire = number of tires ( 1=single, 2=dual) Es = subgrade modulus (psi) asphalt concrete thickness (inches) tire inflation pressure (psi) MODEL SELECTION NETHOD Multiple regression analysis was done on SAS. The maximum R' (squared 24...

    16. Method for wiring allocation and switch configuration in a multiprocessor environment

      DOE Patents [OSTI]

      Aridor, Yariv (Zichron Ya'akov, IL); Domany, Tamar (Kiryat Tivon, IL); Frachtenberg, Eitan (Jerusalem, IL); Gal, Yoav (Haifa, IL); Shmueli, Edi (Haifa, IL); Stockmeyer, legal representative, Robert E. (San Jose, CA); Stockmeyer, Larry Joseph (San Jose, CA)

      2008-07-15

      A method for wiring allocation and switch configuration in a multiprocessor computer, the method including employing depth-first tree traversal to determine a plurality of paths among a plurality of processing elements allocated to a job along a plurality of switches and wires in a plurality of D-lines, and selecting one of the paths in accordance with at least one selection criterion.

    17. Configuration adjustment potential of the Very High Temperature Reactor prismatic cores with advanced actinide fuels 

      E-Print Network [OSTI]

      Ames, David E, II

      2006-10-30

      : Chair of Committee, Pavel V. Tsvetkov Committee Members, Kenneth L. Peddicord Donald G. Allen Head of Department, William E. Burchill August 2006 Major Subject: Nuclear Engineering iii ABSTRACT Configuration.... The project assesses the prospective relation and application for Generation IV VHTRs in the AFCI Program [2, 3]. Utilization of minor actinides, from light water reactor (LWR) fuel, as a fuel component, would facilitate development of new fuel cycles...

    18. Spectral statistics of rare-earth nuclei: Investigation of shell model configuration effect

      E-Print Network [OSTI]

      H. Sabri

      2015-06-11

      The spectral statistics of even-even rare-earth nuclei are investigated by using all the available empirical data for Ba, Ce, Nd, Sm, Gd, Dy, Er, Yb and Hf isotopes. The Berry- Robnik distribution and Maximum Likelihood estimation technique are used for analyses. An obvious deviation from GOE is observed for considered nuclei and there are some suggestions about the effect due to mass, deformation parameter and shell model configurations.

    19. December 6, 2000 A. R. Raffray, et al., Assessment of Dry Wall Material Configuration

      E-Print Network [OSTI]

      Raffray, A. René

      Wall Configuration 1. Impact on Power Cycle Performance of Separately Cooling the Chamber Wall (low in FW/B/S ARIES-IFE SiC/LiPb Chamber 2 4 6 8 0 Total Thermal Power in First Wall From Laila El in FW 30% of total power in FW Nuclear Heating in First Wall #12;December 6, 2000 A. R. Raffray, et al

    20. Signature of the eta-NN configurations in coherent pi0 photoproduction on the deuteron

      E-Print Network [OSTI]

      A. Fix

      2005-09-13

      The photoproduction of a neutral pion on the deuteron is considered in the energy region around the eta threshold, where a bump-like structure was observed at very backward pion angles. Different dynamical aspects which may be responsible for this phenomenon are analysed within a theoretical frame which includes intermediate eta-NN configurations. The results show in particular, that a three-body treatment of the eta-NN interaction is of special importance.

    1. An approximate model for the performance and acoustic predictions of counterrotating propeller configurations 

      E-Print Network [OSTI]

      Denner, Brett William

      1989-01-01

      and opposite force on the lifting surfaces which can be used to provide thrust for an airplane or lift for a helicopter. As a. result of the dynamic interaction between a. propeller or rotor and the surrounding fluid, a certain amount of energy is lost... fields of transonic and supersonic propeller configurations, thereby allowing noise calculations for flow fields containing shock waves. The chief disadvantage of these methods is the high cost as- sociated with obtaining an accurate numerical flow...

    2. Emergence of rotational bands in ab initio no-core configuration interaction calculations of light nuclei

      E-Print Network [OSTI]

      M. A. Caprio; P. Maris; J. P. Vary

      2013-01-06

      The emergence of rotational bands is observed in no-core configuration interaction (NCCI) calculations for the odd-mass Be isotopes (7<=A<=13) with the JISP16 nucleon-nucleon interaction, as evidenced by rotational patterns for excitation energies, quadrupole moments, and E2 transitions. Yrast and low-lying excited bands are found. The results demonstrate the possibility of well-developed rotational structure in NCCI calculations using a realistic nucleon-nucleon interaction.

    3. Super persistent transient in a master-slave configuration with Colpitts oscillators

      E-Print Network [OSTI]

      R. C. Bonetti; S. L. T. de Souza; A. M. Batista; J. D. Szezech Jr.; I. L. Caldas; R. L. Viana; S. R. Lopes; M. S. Baptista

      2014-05-01

      Master-slave systems have been intensively investigated to model the application of chaos to communications. We considered Colpitts oscillators coupled according to a master-slave configuration to study chaos synchronisation. We revealed the existence of super persistent transients in this coupled system. Moreover, we showed that an additive noise added to the slave system may suppress chaos synchronisation. When synchronisation is not suppressed, the noise induces longer transients.

    4. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like argon

      E-Print Network [OSTI]

      Yerokhin, V A; Fritzsche, S

      2014-01-01

      Relativistic configuration-interaction calculations have been performed for the energy levels of the low-lying and core-excited states of beryllium-like argon, Ar$^{14+}$. These calculations include the one-loop QED effects as obtained by two different methods, the screening-potential approach as well as the model QED operator approach. The calculations are supplemented by a systematic estimation of uncertainties of theoretical predictions.

    5. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like iron

      E-Print Network [OSTI]

      Yerokhin, V A; Fritzsche, S

      2014-01-01

      We perform relativistic configuration-interaction calculations of the energy levels of the low-lying and core-excited states of beryllium-like iron, Fe$^{22+}$. The results include the QED contributions calculated by two different methods, the model QED operator approach and the screening-potential approach. The uncertainties of theoretical energies are estimated systematically. The predicted wavelengths of the K\\alpha transitions in beryllium-like iron improve previous theoretical results and compare favorably with the experimental data.

    6. Managing Hardware Configurations and Data Products for the Canadian Hydrogen Intensity Mapping Experiment

      E-Print Network [OSTI]

      Hincks, Adam D

      2014-01-01

      The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is an ambitious new radio telescope project for measuring cosmic expansion and investigating dark energy. Keeping good records of both physical configuration of its 1280 antennas and their analogue signal chains as well as the ~100 TB of data produced daily from its correlator will be essential to the success of CHIME. In these proceedings we describe the database-driven software we have developed to manage this complexity.

    7. Multiparticle-multihole configuration mixing description of nuclear many-body systems

      SciTech Connect (OSTI)

      Robin, C.; Pillet, N.; Le Bloas, J.; Berger, J.-F.

      2014-10-15

      In this work we discuss the multiparticle-multihole configuration mixing method which aims to describe the structure of atomic nuclei. Based on a variational principle it is able to treat in a unified way all types of long-range correlations between nucleons, without introducing symmetry breaking. The formalism is presented along with some preliminary results obtained for a few sd-shell nuclei. In the presented applications, the D1S Gogny force has been used.

    8. Passive Superconducting Flux Conservers for Rotating-Magnetic-Field-Driven Field-Reversed Configurations

      SciTech Connect (OSTI)

      Oz, E.; Myers, C. E.; Edwards, M. R.; Berlinger, B.; Brooks, A.; Cohen, S. A.

      2011-01-05

      The Princeton Field-Reversed Configuration (PFRC) experiment employs an odd-parity rotating magnetic field (RMFo) current drive and plasma heating system to form and sustain high-? plasmas. For radial confinement, an array of coaxial, internal, passive, flux-conserving (FC) rings applies magnetic pressure to the plasma while still allowing radio-frequency RMFo from external coils to reach the plasma. The 3 ms pulse duration of the present experiment is limited by the skin time (?fc) of its room-temperature copper FC rings. To explore plasma phenomena with longer characteristic times, the pulse duration of the next-generation PFRC-2 device will exceed 100 ms, necessitating FC rings with (?fc > 300 ms. In this paper we review the physics of internal, discrete, passive FCs and describe the evolution of the PFRC's FC array. We then detail new experiments that have produced higher performance FC rings that contain embedded high-temperature superconducting (HTS) tapes. Several HTS tape winding configurations have been studied and a wide range of extended skin times, from 0.4 s to over 103 s, has been achieved. The new FC rings must carry up to 3 kA of current to balance the expected PFRC-2 plasma pressure, so the dependence of the HTS-FC critical current on the winding configuration and temperature was also studied. From these experiments, the key HTS-FC design considerations have been identified and HTS-FC rings with the desired performance characteristics have been produced.

    9. Software solutions manage the definition, operation, maintenance and configuration control of the National Ignition Facility

      SciTech Connect (OSTI)

      Dobson, D; Churby, A; Krieger, E; Maloy, D; White, K

      2011-07-25

      The National Ignition Facility (NIF) is the world's largest laser composed of millions of individual parts brought together to form one massive assembly. Maintaining control of the physical definition, status and configuration of this structure is a monumental undertaking yet critical to the validity of the shot experiment data and the safe operation of the facility. The NIF business application suite of software provides the means to effectively manage the definition, build, operation, maintenance and configuration control of all components of the National Ignition Facility. State of the art Computer Aided Design software applications are used to generate a virtual model and assemblies. Engineering bills of material are controlled through the Enterprise Configuration Management System. This data structure is passed to the Enterprise Resource Planning system to create a manufacturing bill of material. Specific parts are serialized then tracked along their entire lifecycle providing visibility to the location and status of optical, target and diagnostic components that are key to assessing pre-shot machine readiness. Nearly forty thousand items requiring preventive, reactive and calibration maintenance are tracked through the System Maintenance & Reliability Tracking application to ensure proper operation. Radiological tracking applications ensure proper stewardship of radiological and hazardous materials and help provide a safe working environment for NIF personnel.

    10. Using the depth-velocity-size diagram to interpret equilibrium bed configurations in river flows

      SciTech Connect (OSTI)

      Southard, J.B. (Massachusetts Institute of Technology, Cambridge, MA (USA))

      1990-05-01

      Data from flume studies that report equilibrium bed configuration as well as water temperature, flow depth, flow velocity, and sediment size were used to develop the best approximation to the relationships among the various bed phases (ripples, dunes, lower regime plane bed, upper regime plane bed, and antidunes) in a three-axis graph (depth-velocity-size diagram) with dimensionless measures of mean flow depth, mean flow velocity, and sediment size along the axis. Relationships are shown in a series of depth-velocity and velocity-size sections through the diagram. Boundaries between bed-phase stability fields are drawn as surfaces that minimize, misplacement of data points. A large subset of the data, for which reliable values of bed shear stress are reported, was also used to represent the stability relationships in a graph of dimensionless boundary shear stress against dimensionless sediment size, but with results less useful for fluvial flow interpretation. The diagram covers about one order of magnitude in flow depth. To be useful for river flows, the diagram must be extrapolated in flow depth by about one more order of magnitude, but this is not a serious problem for approximate work. The depth-velocity-size diagram permits prediction of equilibrium bed configuration in river flows when the approximate flow depth and mean flow velocity are known. Because the diagram is essentially dimensionless, the effect of water temperature (via the fluid viscosity) on the bed configuration is easily accounted for by use of the diagram.

    11. A configurable component-based software system for magnetic field measurements

      SciTech Connect (OSTI)

      Nogiec, J.M.; DiMarco, J.; Kotelnikov, S.; Trombly-Freytag, K.; Walbridge, D.; Tartaglia, M.; /Fermilab

      2005-09-01

      A new software system to test accelerator magnets has been developed at Fermilab. The magnetic measurement technique involved employs a single stretched wire to measure alignment parameters and magnetic field strength. The software for the system is built on top of a flexible component-based framework, which allows for easy reconfiguration and runtime modification. Various user interface, data acquisition, analysis, and data persistence components can be configured to form different measurement systems that are tailored to specific requirements (e.g., involving magnet type or test stand). The system can also be configured with various measurement sequences or tests, each of them controlled by a dedicated script. It is capable of working interactively as well as executing a preselected sequence of tests. Each test can be parameterized to fit the specific magnet type or test stand requirements. The system has been designed with portability in mind and is capable of working on various platforms, such as Linux, Solaris, and Windows. It can be configured to use a local data acquisition subsystem or a remote data acquisition computer, such as a VME processor running VxWorks. All hardware-oriented components have been developed with a simulation option that allows for running and testing measurements in the absence of data acquisition hardware.

    12. A systematic approach to vertically excited states of ethylene using configuration interaction and coupled cluster techniques

      SciTech Connect (OSTI)

      Feller, David, E-mail: dfeller@owt.com; Peterson, Kirk A. [Department of Chemistry, Washington State University, Pullman, Washington 99164-4630 (United States); Davidson, Ernest R. [Department of Chemistry, University of Washington, Seattle, Washington 98195-1700 (United States)

      2014-09-14

      A systematic sequence of configuration interaction and coupled cluster calculations were used to describe selected low-lying singlet and triplet vertically excited states of ethylene with the goal of approaching the all electron, full configuration interaction/complete basis set limit. Included among these is the notoriously difficult, mixed valence/Rydberg {sup 1}B{sub 1u} V state. Techniques included complete active space and iterative natural orbital configuration interaction with large reference spaces which led to variational spaces of 1.8 × 10{sup 9} parameters. Care was taken to avoid unintentionally biasing the results due to the widely recognized sensitivity of the V state to the details of the calculation. The lowest vertical and adiabatic ionization potentials to the {sup 2}B{sub 3u} and {sup 2}B{sub 3} states were also determined. In addition, the heat of formation of twisted ethylene {sup 3}A{sub 1} was obtained from large basis set coupled cluster theory calculations including corrections for core/valence, scalar relativistic and higher order correlation recovery.

    13. Observation of ?-vibrations and alignments built on non-ground-state configurations in ¹??Dy

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Zhu, C. -H.; Hartley, D. J.; Riedinger, L. L.; Sharpey-Schafer, J. F.; Almond, J. M.; Beausang, C.; Carpenter, M. P.; Chiara, C. J.; Cooper, N.; Curien, D.; et al

      2015-03-26

      The exact nature of the lowest K?=2? rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shape in the ? degree of freedom perpendicular to the nuclear symmetry axis. Very few such ?-bands have been traced past the usual back-bending rotational alignments of high-j nucleons. We have investigated the structure of positive-parity bands in the N=90 nucleus ¹??Dy, using the ¹??Nd(¹²C,4n)¹??Dy reaction at 65 MeV, observing the resulting ?-ray transitions with the Gammasphere array. The even- and odd-spin members of the ?=2? ?-band are observed to 32? and 31? respectively.more »This rotational band faithfully tracks the ground-state configuration to the highest spins. The members of a possible ?-vibration built on the aligned yrast S-band are observed to spins 28? and 27?. An even-spin positive-parity band, observed to spin 24?, is a candidate for an aligned S-band built on the seniority-zero configuration of the 0?? state at 676 keV. As a result, the crossing of this band with the 0?? band is at hwc = 0.28(1) MeV and is consistent with the configuration of the 0?? band not producing any blocking of the monopole pairing.« less

    14. Commissioning of the LHC Low Level RF System Remote Configuration Tools

      SciTech Connect (OSTI)

      Van Winkle, Daniel; /SLAC; Fox, John; /SLAC; Mastorides, Themis; /SLAC; Rivetta, Claudio; /SLAC; Baudrenghien, Philippe; /CERN; Butterworth, Andrew; /CERN; Molendijk, John; /CERN

      2010-08-26

      The LHC Low Level RF system (LLRF) is a complex multi-loop system used to regulate the superconductive cavity gap voltage as well as to reduce the impedance presented by RF stations to the beam. The RF system can have a profound impact on the stability of the beam; a mis-configured RF system has the potential of causing longitudinal instabilities, beam diffusion and beam loss. To configure the RF station for operation, a set of parameters in the LLRF multi-loop system have to be defined. Initial system commissioning as well as ongoing operation requires a consistent method of computer based remote measurement and model-based design of each RF station feedback system. This paper describes the suite of Matlab tools used for configuring the LHC RF system during the start up in Nov2009-Feb2010. We present a brief overview of the tool, examples of commissioning results, and basics of the model-based design algorithms. This work complements our previous presentation, where the algorithms and methodology followed in the tools were described.

    15. Development of Global Sea Ice 6.0 CICE configuration for the Met Office Global Coupled Model

      SciTech Connect (OSTI)

      Rae, J. G. L. [Met Office Hadley Centre; Hewitt, H. T. [Met Office Hadley Centre; Keen, A. B. [Met Office Hadley Centre; Ridley, J. K. [Met Office Hadley Centre; West, A. E. [Met Office Hadley Centre; Harris, C. M. [Met Office Hadley Centre; Hunke, E. C. [Los Alamos National Laboratory, Los Alamos, NM 87545, USA; Walters, D. N. [Met Office Hadley Centre

      2015-01-01

      The new sea ice configuration GSI6.0, used in the Met Office global coupled configuration GC2.0, is described and the sea ice extent, thickness and volume are compared with the previous configuration and with observationally-based datasets. In the Arctic, the sea ice is thicker in all seasons than in the previous configuration, and there is now better agreement of the modelled concentration and extent with the HadISST dataset. In the Antarctic, a warm bias in the ocean model has been exacerbated at the higher resolution of GC2.0, leading to a large reduction in ice extent and volume; further work is required to rectify this in future configurations.

    16. Development of global sea ice 6.0 CICE configuration for the Met Office global coupled model

      DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

      Rae, J. . G. L; Hewitt, H. T.; Keen, A. B.; Ridley, J. K.; West, A. E.; Harris, C. M.; Hunke, E. C.; Walters, D. N.

      2015-03-05

      The new sea ice configuration GSI6.0, used in the Met Office global coupled configuration GC2.0, is described and the sea ice extent, thickness and volume are compared with the previous configuration and with observationally-based datasets. In the Arctic, the sea ice is thicker in all seasons than in the previous configuration, and there is now better agreement of the modelled concentration and extent with the HadISST dataset. In the Antarctic, a warm bias in the ocean model has been exacerbated at the higher resolution of GC2.0, leading to a large reduction in ice extent and volume; further work is requiredmore »to rectify this in future configurations.« less

    17. Freeze-out configuration properties in the 197Au + 197Au reaction at 23 AMeV

      E-Print Network [OSTI]

      Najman, R; Sochocka, A; Amorini, F; Auditore, L; Cap, T; Cardella, G; De Filippo, E; Geraci, E; Grzeszczuk, A; Kowalski, S; Kozik, T; Lanzalone, G; Lombardo, I; Majka, Z; Nicolis, N G; Pagano, A; Piasecki, E; Pirrone, S; Politi, G; Rizzo, F; Russotto, P; Siwek-Wilczynska, K; Skwira-Chalot, I; Trifiro, A; Trimarchi, M; Wilczynski, J; Zipper, W

      2015-01-01

      Data from the experiment on the 197Au + 197Au reaction at 23 AMeV are analyzed with an aim to find signatures of exotic nuclear configurations such as toroid-shaped objects. The experimental data are compared with predictions of the ETNA code dedicated to look for such configurations and with the QMD model. A novel criterion of selecting events possibly resulting from the formation of exotic freeze-out configurations, "the efficiency factor", is tested. Comparison between experimental data and model predictions may indicate for the formation of flat/toroidal nuclear systems.

    18. Freeze-out configuration properties in the 197Au + 197Au reaction at 23 AMeV

      E-Print Network [OSTI]

      R. Najman; R. Planeta; A. Sochocka; F. Amorini; L. Auditore; T. Cap; G. Cardella; E. De Filippo; E. Geraci; A. Grzeszczuk; S. Kowalski; T. Kozik; G. Lanzalone; I. Lombardo; Z. Majka; N. G. Nicolis; A. Pagano; E. Piasecki; S. Pirrone; G. Politi; F. Rizzo; P. Russotto; K. Siwek-Wilczynska; I. Skwira-Chalot; A. Trifiro; M. Trimarchi; J. Wilczynski; W. Zipper

      2015-07-11

      Data from the experiment on the 197Au + 197Au reaction at 23 AMeV are analyzed with an aim to find signatures of exotic nuclear configurations such as toroid-shaped objects. The experimental data are compared with predictions of the ETNA code dedicated to look for such configurations and with the QMD model. A novel criterion of selecting events possibly resulting from the formation of exotic freeze-out configurations, "the efficiency factor", is tested. Comparison between experimental data and model predictions may indicate for the formation of flat/toroidal nuclear systems.

    19. Divertor configuration and heat load studies for the ARIES-CS fusion power plant

      SciTech Connect (OSTI)

      Mau, T. K. [University of California, San Diego; Kaiser, T. [Lawrence Livermore National Laboratory (LLNL); Grossman, A. [University of California, San Diego; Raffray, R. [University of California, San Diego; Wang, X. [University of California, San Diego; Lyon, James F [ORNL; Maingi, R. [Oak Ridge National Laboratory (ORNL); Ku, L. P. [Princeton Plasma Physics Laboratory (PPPL); Zarnstorff, M. C. [Princeton Plasma Physics Laboratory (PPPL)

      2008-01-01

      The critical issue of divertor configuration for heat and particle flux control in a conceptual ARIES compact stellarator (CS) reactor is addressed. The goal is to determine a divertor location and geometry with a peak heat load of not more than 10 MW/m(2) for a CS equilibrium based on the configuration to be used in the NCSX experiment, optimized for high beta (6.4%) and designed for low alpha-particle power loss fraction (<= 5%). The surface heat flux on the target has three components: thermal particles, lost energetic alphas, and radiation from the core and the scrape-off layer. The first two components are dominant and their magnitudes can be comparable. To maintain a tritium-breeding ratio of 1.1, the total target area should not exceed 15% of the boundary plasma surface area. The divertor concept consists of two pairs of target plates per field period, one pair each at the top and bottom of the plasma. The heat flux profile is assessed by assuming that the parallel transport can be represented by field line mapping and that cross-field transport can be modeled with a prescribed field line diffusion scheme. In this manner, the poloidal and toroidal extents of the plates and their shape and distance to the plasma are designed to intercept all the heat flux and to minimize the peak thermal heat load. An approximate scheme, based on particle drift orbits in the core and field line tracing in the edge, is derived to estimate the alpha-particle heat load distribution over the plates and the first wall. The best plate configuration to date yields total peak heat loads (thermal + alpha) ranging from 5 to 18 MW/m(2). Further optimization of the target plates is required to reach the design goal, which will be addressed in a future study.

    20. Gas-puff liner implosion in the configuration with helical current return rods

      SciTech Connect (OSTI)

      Sorokin, S. A.

      2013-02-15

      Results of experiments with double-shell gas-puff liners carried out on a high-current MIG generator (2 MA, 80 ns) are presented. To stabilize the process of liner implosion and increase the efficiency of energy transfer from the generator to the liner plasma, a current return in the form of a multifilar helix was used. The effect of the configuration of the current return on the parameters of the generated pulses of argon and neon K-shell radiation (with photon energies of 3-5 and 0.9-1.5 keV, respectively) and the neutron yield from a deuterium liner were studied.

    1. Development of configurational forces during the injection of an elastic rod

      E-Print Network [OSTI]

      F. Bosi; D. Misseroni; F. Dal Corso; D. Bigoni

      2015-09-18

      When an inextensible elastic rod is 'injected' through a sliding sleeve against a fixed constraint, configurational forces are developed, deeply influencing the mechanical response. This effect, which is a consequence of the change in length of the portion of the rod included between the sliding sleeve and the fixed constraint, is theoretically demonstrated (via integration of the elastica) and experimentally validated on a proof-of-concept structure (displaying an interesting force reversal in the load/deflection diagram), to provide conclusive evidence to mechanical phenomena relevant in several technologies, including guide wire for artery catheterization, or wellbore insertion of a steel pipe.

    2. THE RHIC INJECTOR ACCELERATORS CONFIGURATIONS, AND PERFORMANCE FOR THE RHIC 2003 AU - D PHYSICS RUN.

      SciTech Connect (OSTI)

      Ahrens, L; Benjamin, J; Blaskiewicz, M; Brennan, J M; Brown, K A; Carlson, K A; Delong, J; D' Ottavio, T; Frak, B; Gardner, C J; Glenn, J W; Harvey, M; Hayes, T; Hseuh, H- C; Ingrassia, P; Lowenstein, D; Mackay, W; Marr, G; Morris, J; Roser, T; Satogata, T; Smith, G; Smith, K S; Steski, D; Tsoupas, N; Thieberger, P; Zeno, K

      2003-05-12

      The RHIC 2003 Physics Run [1] required collisions between gold ions and deuterons. The injector necessarily had to deliver adequate quality (transverse and longitudinal emittance) and quantity of both species. For gold this was a continuing evolution from past work [2]. For deuterons it was new territory. For the filling of the RHIC the injector not only had to deliver quality beams but also had to switch between these species quickly. This paper details the collider requirements and our success in meeting these. Some details of the configurations employed are given.

    3. Emergence of rotational bands in ab initio no-core configuration interaction calculations

      E-Print Network [OSTI]

      M. A. Caprio; P. Maris; J. P. Vary; R. Smith

      2015-02-04

      Rotational bands have been observed to emerge in ab initio no-core configuration interaction (NCCI) calculations for p-shell nuclei, as evidenced by rotational patterns for excitation energies, electromagnetic moments, and electromagnetic transitions. We investigate the ab initio emergence of nuclear rotation in the Be isotopes, focusing on 9Be for illustration, and make use of basis extrapolation methods to obtain ab initio predictions of rotational band parameters for comparison with experiment. We find robust signatures for rotational motion, which reproduce both qualitative and quantitative features of the experimentally observed bands.

    4. Effect of Substrate Configuration on the Grain Structure and Morphology of Electrodeposited Ni for Prototyping LIGA

      SciTech Connect (OSTI)

      Nacy Y. C. Yang

      2002-07-01

      Synchrotron X-ray lithographic molding of PMMA-Ti/Cu/Ti substrates has been developed and used in the electrodeposition of Ni microparts for prototype LIGA development at SNL, CA. Alternative molding processes that minimize x-ray beam line use and reduce processing time are of interest for the rapid fabrication of large quantities of microparts. The objective of this investigation is to examine, archive, and compare the grain structure and morphology of deposits produced from four different molding technologies currently under development. We conclude that deposit microstructure and uniformity are greatly influenced by substrate material and design configuration. The findings are summarized.

    5. Non-orthogonal configuration interaction for the calculation of multielectron excited states

      SciTech Connect (OSTI)

      Sundstrom, Eric J. Head-Gordon, Martin

      2014-03-21

      We apply Non-orthogonal Configuration Interaction (NOCI) to molecular systems where multielectron excitations, in this case double excitations, play a substantial role: the linear polyenes and ?-carotene. We demonstrate that NOCI when applied to systems with extended conjugation, provides a qualitatively correct wavefunction at a fraction of the cost of many other multireference treatments. We also present a new extension to this method allowing for purification of higher-order spin states by utilizing Generalized Hartree-Fock Slater determinants and the details for computing ?S{sup 2}? for the ground and excited states.

    6. Isotope Shifts in Beryllium-, Boron-, Carbon-, and Nitrogen-like Ions from Relativistic Configuration Interaction Calculations

      E-Print Network [OSTI]

      Nazé, C; Rynkun, P; Gaigalas, G; Godefroid, M; Jönsson, P

      2014-01-01

      Energy levels, normal and specific mass shift parameters as well as electronic densities at the nucleus are reported for numerous states along the beryllium, boron, carbon, and nitrogen isoelectronic sequences. Combined with nuclear data, these electronic parameters can be used to determine values of level and transition isotope shifts. The calculation of the electronic parameters is done using first-order perturbation theory with relativistic configuration interaction wave functions that account for valence, core-valence and core-core correlation effects as zero-order functions. Results are compared with experimental and other theoretical values, when available.

    7. Atomic configuration of irradiation-induced planar defects in 3C-SiC

      SciTech Connect (OSTI)

      Lin, Y. R. [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); National Synchrotron Radiation Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan (China); Ho, C. Y. [Institute of Nuclear Engineering and Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Hsieh, C. Y.; Chang, M. T.; Lo, S. C. [Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan (China); Chen, F. R. [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Kai, J. J., E-mail: ceer0001@gmail.com [Department of Engineering and System Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China); Institute of Nuclear Engineering and Science, National Tsing-Hua University, Hsinchu 30013, Taiwan (China)

      2014-03-24

      The atomic configuration of irradiation-induced planar defects in single crystal 3C-SiC at high irradiation temperatures was shown in this research. A spherical aberration corrected scanning transmission electron microscope provided images of individual silicon and carbon atoms by the annular bright-field (ABF) method. Two types of irradiation-induced planar defects were observed in the ABF images including the extrinsic stacking fault loop with two offset Si-C bilayers and the intrinsic stacking fault loop with one offset Si-C bilayer. The results are in good agreement with images simulated under identical conditions.

    8. SOLAR MIXTURE OPACITY CALCULATIONS USING DETAILED CONFIGURATION AND LEVEL ACCOUNTING TREATMENTS

      SciTech Connect (OSTI)

      Blancard, Christophe; Cosse, Philippe; Faussurier, Gerald

      2012-01-20

      An opacity model (OPAS) combining detailed configuration and level accounting treatments has been developed to calculate radiative opacity of plasmas in local thermodynamic equilibrium. The model is presented and used to compute spectral opacities of a solar mixture. Various density-temperature couples have been considered from the solar center up to the vicinity of the radiative/convective zone interface. For a given solar thermodynamic path, OPAS calculations are compared to Opacity Project (OP) and OPAL data. Rosseland mean opacity values are in very good agreement over all the considered solar thermodynamic path, while OPAS and OP spectral opacities of each element may vary considerably. Main sources of discrepancy are discussed.

    9. Prediction of a non-uniform freestream velocity distribution for counterrotating propeller configurations and the effect on performance/acoustic 

      E-Print Network [OSTI]

      Allen, Christopher Shane

      1993-01-01

      A methodology for predicting the performance and acoustics of counterrotating propeller configurations was enhanced by incorporating a method for computing the non-uniform freestream velocity distribution entering the propeller disc plane due...

    10. A numerical study of steady-state vortex configurations and vortex pinning in type-II superconductors 

      E-Print Network [OSTI]

      Kim, Sangbum

      2006-04-12

      In part I, a numerical study of the mixed states in a mesoscopic type-II superconducting cylinder is described. Steady-state configurations and transient behavior of the magnetic vortices for various values of the applied ...

    11. The effect of hardware configuration on the performance of residential air conditioning systems at high outdoor ambient temperatures 

      E-Print Network [OSTI]

      Bain, Joel Alan

      1995-01-01

      A study was performed which investigated the effect of hardware configuration on air conditioning cooling system performance at high outdoor temperatures. The initial phase of the investigation involved the testing of ten residential air...

    12. Multi-physics investigation on the failure mechanism and short-time scale wave motion in flip-chip configuration 

      E-Print Network [OSTI]

      Oh, Yoonchan

      2005-11-01

      The demands for higher clock speeds and larger current magnitude in high-performance flip-chip electronic packaging configurations of small footprint have inevitably raised the concern over rapid thermal transients and ...

    13. Configurational diffusion of coal macromolecules. Final technical report, September 15, 1986--September 14, 1991

      SciTech Connect (OSTI)

      Guin, J.A.; Curtis, C.W.; Tarrer, A.R.; Kim, S.; Hwang, D.; Chen, C.C.; Chiou, Z.

      1991-12-31

      The objective of our research was to obtain fundamental information regarding the functional dependence of the diffusion coefficient of coal molecules on the ratio of molecule to pore diameter. That is, the objective of our study was to examine the effect of molecule size and configuration on hindered diffusion of coal macromolecules through as porous medium. To best accomplish this task, we circumvented the complexities of an actual porous catalyst by using a well defined porous matrix with uniform capillaric pores, i.e., a track-etched membrane. In this way, useful information was obtained regarding the relationship of molecular size and configuration on the diffusion rate of coal derived macromolecules through a pore structure with known geometry. Similar studies were performed using a pellet formed of porous alumina, to provide a link between the idealized membranes and the actual complex pore structure of real catalyst extrudates. The fundamental information from our study will be useful toward the tailoring of catalysts to minimize diffusional influences and thereby increase coal conversion and selectivity for desirable products. (VC)

    14. Detector configuration of DECIGO/BBO and identification of cosmological neutron-star binaries

      E-Print Network [OSTI]

      Kent Yagi; Naoki Seto

      2011-01-20

      The primary target for the planned space-borne gravitational wave interferometers DECIGO/BBO is a primordial gravitational wave background (PGWB). However there exist astrophysical foregrounds and among them, gravitational waves from neutron star (NS) binaries are the solid and strong component that must be identified and subtracted. In this paper, we discuss the geometry of detector configurations preferable for identifying the NS/NS binary signals. As a first step, we analytically estimate the minimum signal-to-noise ratios (SNRs) of the binaries for several static detector configurations that are characterized by adjustable geometrical parameters, and determine the optimal values for these parameters. Next we perform numerical simulations to take into account the effect of detector motions, and find reasonable agreements with the analytical results. We show that, with the standard network formed by 4 units of triangle detectors, the proposed BBO sensitivity would be sufficient in receiving gravitational waves from all the NS/NS binaries at $z\\le 5$ with SNRs higher than 25. We also discuss the minimum sensitivity of DECIGO required for the foreground identification.

    15. Solid oxide fuel cell generator with removable modular fuel cell stack configurations

      DOE Patents [OSTI]

      Gillett, J.E.; Dederer, J.T.; Zafred, P.R.; Collie, J.C.

      1998-04-21

      A high temperature solid oxide fuel cell generator produces electrical power from oxidation of hydrocarbon fuel gases such as natural gas, or conditioned fuel gases, such as carbon monoxide or hydrogen, with oxidant gases, such as air or oxygen. This electrochemical reaction occurs in a plurality of electrically connected solid oxide fuel cells bundled and arrayed in a unitary modular fuel cell stack disposed in a compartment in the generator container. The use of a unitary modular fuel cell stack in a generator is similar in concept to that of a removable battery. The fuel cell stack is provided in a pre-assembled self-supporting configuration where the fuel cells are mounted to a common structural base having surrounding side walls defining a chamber. Associated generator equipment may also be mounted to the fuel cell stack configuration to be integral therewith, such as a fuel and oxidant supply and distribution systems, fuel reformation systems, fuel cell support systems, combustion, exhaust and spent fuel recirculation systems, and the like. The pre-assembled self-supporting fuel cell stack arrangement allows for easier assembly, installation, maintenance, better structural support and longer life of the fuel cells contained in the fuel cell stack. 8 figs.

    16. Combining structured and unstructured data in a configurable web-based logbook

      SciTech Connect (OSTI)

      Nogiec, J.; Trombly-Freytag, K.; /Fermilab

      2009-10-01

      A typical electronic logbook is designed as a general-purpose system for recording time-ordered events and actions and, therefore, allows for a great flexibility in recording information, but the data is unstructured. To better position it in a specific context (e.g., a, test facility, a group activity log) it needs to support both structured data (keyword, authors, etc) and unstructured data (text, title, attachments) in that context. To do this, a logbook system can define a set of attributes, possibly built as a hierarchy. These application-specific attributes will be associated with each entry. To be flexible, such a system has to be configurable to allow for tailoring it to each specific environment. The paper describes a design, functionality, and experiences with WebLog, a database-configurable electronic logbook developed with the J2EE Web technology. Various functional and technical properties of the system are discussed, including views, searches, threads of entries, an automated alerting system as well as integration with other applications.

    17. Nonlinear oscillations of compact stars in the vicinity of the maximum mass configuration

      E-Print Network [OSTI]

      Alessandro Brillante; Igor Mishustin

      2015-07-17

      We solve the dynamical GR equations for the spherically symmetric evolution of compact stars in the vicinity of the maximum mass, for which instability sets in according to linear perturbation theory. The calculations are done with the analytical Zeldovich-like EOS P=a(rho-rho_0) and with the TM1 parametrisation of the RMF model. The initial configurations for the dynamical calculations are represented by spherical stars with equilibrium density profile, which are perturbed by either (i) an artificially added inward velocity field proportional to the radial coordinate, or (ii) a rarefaction corresponding to a static and expanded star. These configurations are evolved using a one-dimensional GR hydro code for ideal and barotropic fluids. Depending on the initial conditions we obtain either stable oscillations or the collapse to a black hole. The minimal amplitude of the perturbation, needed to trigger gravitational collapse is evaluated. The approximate independence of this energy on the type of perturbation is pointed out. At the threshold we find type I critical behaviour for all stellar models considered and discuss the dependence of the time scaling exponent on the baryon mass and EOS.

    18. Topological configurations of Yang-Mills field responsible for magnetic-monopole loops as quark confiner

      E-Print Network [OSTI]

      Akihiro Shibata; Kei-Ichi Kondo; Seikou Kato; Shoichi Ito; Toru Shinohara; Nobuyui Fukui

      2009-11-24

      We have given a new description of the lattice Yang-Mills theory a la Cho-Faddeev-Niemi-Shabanov, which has enabled us to confirm in a gauge-independent manner "Abelian"-dominance and magnetic-monopole dominance in the Wilson loop average, yielding a gauge-independent dual superconductor picture for quark confinement. In particular, we have given a new procedure (called reduction) for obtaining a gauge-independent magnetic monopole from a given Yang-Mills field. In this talk, we demonstrate how some of known topological configurations in the SU(2) Yang-Mills theory such as merons and instantons generate closed loops of magnetic-monopole current as the quark confiner, both of which are characterized by the gauge-invariant topological index, topological charge (density) and magnetic charge (density), respectively. We also try to detect which type of topological configurations exist in the lattice data involving magnetic-monopole loops generated by Monte Carlo simulation. Here we apply a new geometrical algorithm based on "computational homology" to discriminating each closed loop from clusters of magnetic-monopole current, since the magnetic-monopole current on a lattice is integer valued.

    19. Solid oxide fuel cell generator with removable modular fuel cell stack configurations

      DOE Patents [OSTI]

      Gillett, James E. (Greensburg, PA); Dederer, Jeffrey T. (Valencia, PA); Zafred, Paolo R. (Pittsburgh, PA); Collie, Jeffrey C. (Pittsburgh, PA)

      1998-01-01

      A high temperature solid oxide fuel cell generator produces electrical power from oxidation of hydrocarbon fuel gases such as natural gas, or conditioned fuel gases, such as carbon monoxide or hydrogen, with oxidant gases, such as air or oxygen. This electrochemical reaction occurs in a plurality of electrically connected solid oxide fuel cells bundled and arrayed in a unitary modular fuel cell stack disposed in a compartment in the generator container. The use of a unitary modular fuel cell stack in a generator is similar in concept to that of a removable battery. The fuel cell stack is provided in a pre-assembled self-supporting configuration where the fuel cells are mounted to a common structural base having surrounding side walls defining a chamber. Associated generator equipment may also be mounted to the fuel cell stack configuration to be integral therewith, such as a fuel and oxidant supply and distribution systems, fuel reformation systems, fuel cell support systems, combustion, exhaust and spent fuel recirculation systems, and the like. The pre-assembled self-supporting fuel cell stack arrangement allows for easier assembly, installation, maintenance, better structural support and longer life of the fuel cells contained in the fuel cell stack.

    20. Emergence of rotational bands in ab initio no-core configuration interaction calculations of the Be isotopes

      E-Print Network [OSTI]

      P. Maris; M. A. Caprio; J. P. Vary

      2015-01-30

      The emergence of rotational bands is observed in no-core configuration interaction (NCCI) calculations for the Be isotopes (7<=A<=12), as evidenced by rotational patterns for excitation energies, electromagnetic moments, and electromagnetic transitions. Yrast and low-lying excited bands are found. The results indicate well-developed rotational structure in NCCI calculations, using the JISP16 realistic nucleon-nucleon interaction within finite, computationally-accessible configuration spaces.

    1. . EE Programmable 524,288 x 1 and 1,048,576 x 1bit Serial Memories Designed to Store Configuration Programs for Field Programmable Gate Arrays (FPGAs)

      E-Print Network [OSTI]

      California at Santa Cruz, University of

      with industry­standard program­ mers, or Atmel's ATDH2200E Programming Kit. FPGA Configuration EEPROM Memory 512

    2. Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations

      E-Print Network [OSTI]

      Alexej Weber; Holger Gies

      2010-03-17

      We investigate the nontrivial interplay between geometry and temperature in the Casimir effect for the sphere-plate and cylinder-plate configurations. At low temperature, the thermal contribution to the Casimir force is dominated by this interplay, implying that standard approximation techniques such as the PFA are inapplicable even in the limit of small surface separation. Thermal fluctuations on scales of the thermal wavelength lead to a delocalization of the thermal force density at low temperatures. As a consequence, the temperature dependence strongly differs from naive expectations. Most prominently, thermal forces can develop non-monotonic behavior below a critical temperature. We perform a comprehensive study of such geothermal phenomena in these Casimir geometries, using analytical and numerical worldline techniques for Dirichlet scalar fluctuations.

    3. Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations

      E-Print Network [OSTI]

      Weber, Alexej

      2010-01-01

      We investigate the nontrivial interplay between geometry and temperature in the Casimir effect for the sphere-plate and cylinder-plate configurations. At low temperature, the thermal contribution to the Casimir force is dominated by this interplay, implying that standard approximation techniques such as the PFA are inapplicable even in the limit of small surface separation. Thermal fluctuations on scales of the thermal wavelength lead to a delocalization of the thermal force density at low temperatures. As a consequence, the temperature dependence strongly differs from naive expectations. Most prominently, thermal forces can develop non-monotonic behavior below a critical temperature. We perform a comprehensive study of such geothermal phenomena in these Casimir geometries, using analytical and numerical worldline techniques for Dirichlet scalar fluctuations.

    4. High Level Trigger Configuration and Handling of Trigger Tables in the CMS Filter Farm

      SciTech Connect (OSTI)

      Bauer, G; Behrens, U; Boyer, V; Branson, J; Brett, A; Cano, E; Carboni, A; Ciganek, M; Cittolin, S; O'dell, V; Erhan, S; Gigi, D; Glege, F; Gomez-Reino, R; Gulmini, M; Gutleber, J; Hollar, J; Lange, D; Kim, J C; Klute, M; Lipeles, E; Perez, J L; Maron, G; Meijers, F; Meschi, E; Moser, R; Mlot, E G; Murray, S; Oh, A; Orsini, L; Paus, C; Petrucci, A; Pieri, M; Pollet, L; Racz, A; Sakulin, H; Sani, M; Schieferdecker, P; Schwick, C; Sumorok, K; Suzuki, I; Tsirigkas, D; Varela, J

      2009-11-22

      The CMS experiment at the CERN Large Hadron Collider is currently being commissioned and is scheduled to collect the first pp collision data in 2008. CMS features a two-level trigger system. The Level-1 trigger, based on custom hardware, is designed to reduce the collision rate of 40 MHz to approximately 100 kHz. Data for events accepted by the Level-1 trigger are read out and assembled by an Event Builder. The High Level Trigger (HLT) employs a set of sophisticated software algorithms, to analyze the complete event information, and further reduce the accepted event rate for permanent storage and analysis. This paper describes the design and implementation of the HLT Configuration Management system. First experiences with commissioning of the HLT system are also reported.

    5. Configuration space Faddeev calculations. Progress report, 1 November 1992--31 October 1993

      SciTech Connect (OSTI)

      Payne, G.L.; Klink, W.H.; Polyzou, W.N.

      1994-01-01

      The detailed study of few-body systems provides one of the most precise tools for studying the dynamics of nuclei and nucleons. This research program consists of a careful theoretical study of few-body systems and methods for modeling these systems. Brief summaries are given on several aspects of this program including the following: the use of configuration-space Faddeev equations to solve the proton-deuteron scattering problem with long-range Coulomb interactions; calculations of the triton binding energy; inclusion of dynamical vacuum structures in Hamiltonian light-front dynamics; constraints in Bethe-Salpeter models; signature of quantum chaos; applications of point form relativistic quantum mechanics collective nuclear models and the symplectic group Sp (6,R); and anharmonic oscillators and quantum mechanics systems in nonconstant magnetic fields.

    6. Array configuration studies for the SKA -- Implementation of figures of merit based on SDR

      E-Print Network [OSTI]

      Dharam V. Lal; Andrei P. Lobanov

      2008-10-06

      The Square Kilometre Array is going to become operational at the time when several new large optical, X-ray and Gamma-ray telescopes are expected to be working. The main drive for building the SKA is a significant improvement of sensitivity that would widen the general scope of the centimetre-wavelength radio science. To this end, a thorough design studies should be made, in order to ensure that the SKA becomes a competitive counterpart of the facilities at other wavebands. To quantify imaging performance of the SKA configurations, we are implementing figures of merit based on spatial dynamic range (SDR). This work is focused on extensive numerical tests of the analytical, SDR--based figures of merit derived in the SKA Memo 38 (A. Lobanov). Here, we present our preliminary results.

    7. Test of the CLAS12 RICH large scale prototype in the direct proximity focusing configuration

      E-Print Network [OSTI]

      N. Baltzell; L. Barion; F. Benmokhtar; W. Brooks; E. Cisbani; M. Contalbrigo; A. El Alaoui; K. Hafidi; M. Hoek; V. Kubarovsky; L. Lagamba; V. Lucherini; R. Malaguti; M. Mirazita; R. A. Montgomery; A. Movsisyan; P. Musico; A. Orlandi; D. Orecchini; L. L. Pappalardo; R. Perrino; J. Phillips; S. Pisano; P. Rossi; S. Squerzanti; S. Tomassini; M. Turisini; A. Viticchie

      2015-09-09

      A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and high-packed and high-segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). We report here the results of the tests of a large scale prototype of the RICH detector performed with the hadron beam of the CERN T9 experimental hall for the direct detection configuration. The tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1:500 in the whole momentum range.

    8. Plasma-gun-assisted field-reversed configuration formation in a conical ?-pinch

      SciTech Connect (OSTI)

      Weber, T. E. Intrator, T. P.; Smith, R. J.

      2015-04-15

      Injection of plasma via an annular array of coaxial plasma guns during the pre-ionization phase of field-reversed configuration (FRC) formation is shown to catalyze the bulk ionization of a neutral gas prefill in the presence of a strong axial magnetic field and change the character of outward flux flow during field-reversal from a convective process to a much slower resistive diffusion process. This approach has been found to significantly improve FRC formation in a conical ?-pinch, resulting in a ?350% increase in trapped flux at typical operating conditions, an expansion of accessible formation parameter space to lower densities and higher temperatures, and a reduction or elimination of several deleterious effects associated with the pre-ionization phase.

    9. Overview of C-2 field-reversed configuration experiment plasma diagnostics

      SciTech Connect (OSTI)

      Gota, H. Thompson, M. C.; Tuszewski, M.; Binderbauer, M. W.

      2014-11-15

      A comprehensive diagnostic suite for field-reversed configuration (FRC) plasmas has been developed and installed on the C-2 device at Tri Alpha Energy to investigate the dynamics of FRC formation as well as to understand key FRC physics properties, e.g., confinement and stability, throughout a discharge. C-2 is a unique, large compact-toroid merging device that produces FRC plasmas partially sustained for up to ?5 ms by neutral-beam (NB) injection and end-on plasma-guns for stability control. Fundamental C-2 FRC properties are diagnosed by magnetics, interferometry, Thomson scattering, spectroscopy, bolometry, reflectometry, and NB-related fast-ion/neutral diagnostics. These diagnostics (totaling >50 systems) are essential to support the primary goal of developing a deep understanding of NB-driven FRCs.

    10. A new high performance field reversed configuration operating regime in the C-2 device

      SciTech Connect (OSTI)

      Tuszewski, M.; Smirnov, A.; Thompson, M. C.; Barnes, D.; Binderbauer, M. W.; Brown, R.; Bui, D. Q.; Clary, R.; Conroy, K. D.; Deng, B. H.; Dettrick, S. A.; Douglass, J. D.; Garate, E.; Glass, F. J.; Gota, H.; Guo, H.Y.; Gupta, D.; Gupta, S.; Kinley, J. S.; Knapp, K.; and others

      2012-05-15

      Large field reversed configurations (FRCs) are produced in the C-2 device by combining dynamic formation and merging processes. The good confinement of these FRCs must be further improved to achieve sustainment with neutral beam (NB) injection and pellet fuelling. A plasma gun is installed at one end of the C-2 device to attempt electric field control of the FRC edge layer. The gun inward radial electric field counters the usual FRC spin-up and mitigates the n = 2 rotational instability without applying quadrupole magnetic fields. Better plasma centering is also obtained, presumably from line-tying to the gun electrodes. The combined effects of the plasma gun and of neutral beam injection lead to the high performance FRC operating regime, with FRC lifetimes up to 3 ms and with FRC confinement times improved by factors 2 to 4.

    11. A Comparison of Supercritical Carbon Dioxide Power Cycle Configurations with an Emphasis on CSP Applications (Presentation)

      SciTech Connect (OSTI)

      Neises, T.; Turchi, C.

      2013-09-01

      Recent research suggests that an emerging power cycle technology using supercritical carbon dioxide (s-CO2) operated in a closed-loop Brayton cycle offers the potential of equivalent or higher cycle efficiency versus supercritical or superheated steam cycles at temperatures relevant for CSP applications. Preliminary design-point modeling suggests that s-CO2 cycle configurations can be devised that have similar overall efficiency but different temperature and/or pressure characteristics. This paper employs a more detailed heat exchanger model than previous work to compare the recompression and partial cooling cycles, two cycles with high design-point efficiencies, and illustrates the potential advantages of the latter. Integration of the cycles into CSP systems is studied, with a focus on sensible heat thermal storage and direct s-CO2 receivers. Results show the partial cooling cycle may offer a larger temperature difference across the primary heat exchanger, thereby potentially reducing heat exchanger cost and improving CSP receiver efficiency.

    12. Baseline LHC machine parameters and configuration of the 2015 proton run

      E-Print Network [OSTI]

      R. Bruce; G. Arduini; S. Fartoukh; M. Giovannozzi; M. Lamont; E. Metral; T. Pieloni; S. Redaelli; J. Wenninger

      2014-10-22

      This paper shows the baseline LHC machine parameters for the 2015 start-up. Many systems have been upgraded during LS1 and in 2015 the LHC will operate at a higher energy than before and with a tighter filling scheme. Therefore, the 2015 commissioning phase risks to be less smooth than in 2012. The proposed starting configuration puts the focus on feasibility rather than peak performance and includes margins for operational uncertainties. Instead, once beam experience and a better machine knowledge has been obtained, a push in $\\beta^*$ and performance can be envisaged. In this paper, the focus is on collimation settings and reach in $\\beta^*$---other parameters are covered in greater depth by other papers in these proceedings.

    13. Fission fragment mass yield deduced from density distribution in the pre-scission configuration

      E-Print Network [OSTI]

      M. Warda; A. Zdeb

      2015-02-19

      Static self-consistent methods usually allow to determine the most probable fission fragments mass asymmetry. We have applied random neck rupture mechanism to the nuclei in the configuration at the end of fission paths. Fission fragment mass distributions have been deduced from the pre-scission nuclear density distribution obtained from the self-consistent calculations. Potential energy surfaces as well as nuclear shapes have been calculated in the fully microscopic theory, namely the constrained Hartree-Fock-Bogolubov model with the effective Gogny D1S density-dependent interaction. The method has been applied for analysis of fission of Fm-256,258, Cf-252 and Hg-180 and compared with the experimental data.

    14. EFFECT OF ELECTROLYZER CONFIGURATION AND PERFORMANCE ON HYBRID SULFUR PROCESS NET THERMAL EFFICIENCY

      SciTech Connect (OSTI)

      Gorensek, M

      2007-03-16

      Hybrid Sulfur cycle is gaining popularity as a possible means for massive production of hydrogen from nuclear energy. Several different ways of carrying out the SO{sub 2}-depolarized electrolysis step are being pursued by a number of researchers. These alternatives are evaluated with complete flowsheet simulations and on a common design basis using Aspen Plus{trademark}. Sensitivity analyses are performed to assess the performance potential of each configuration, and the flowsheets are optimized for energy recovery. Net thermal efficiencies are calculated for the best set of operating conditions for each flowsheet and the results compared. This will help focus attention on the most promising electrolysis alternatives. The sensitivity analyses should also help identify those features that offer the greatest potential for improvement.

    15. Lithium isotopes within the ab intio no-core full configuration approach

      E-Print Network [OSTI]

      Chase Cockrell; James P. Vary; Pieter Maris

      2012-09-14

      We perform no-core full configuration calculations for the Lithium isotopes, 6Li, 7Li, and 8Li with the realistic nucleon-nucleon interaction JISP16. We obtain a set of observables, such as spectra, radii, multipole moments, transition rates, etc., and compare with experiment where available. We also present one-body density distributions for selected states. Convergence properties of these density distributions shed light on the convergence properties of one-body observables. We obtain underbinding by 0.5 MeV, 0.7 MeV, and 1.0 MeV for 6Li, 7Li, 8Li respectively. Magnetic moments are well-converged and agree with experiment to within 20%.

    16. Elastic energy and string configurations in the chiral gauge theory of biaxial uniaxial nematic phase transitions

      E-Print Network [OSTI]

      L. V. Elnikova

      2014-10-09

      In nematic liquid crystals (NLCs), topological defects of a chiral origin play a role in phase transitions and lead to phase configurations of nontrivial topology, like those in neutron stars and helium in the A-phase. In the biaxial-uniaxial phase transition, the deformation of the orbit, as the order parameter degeneracy of the NLC, connects together an evolution of topological defects, the surface anchoring energy and elastic Frank modui. In this work we estimate the chiral gauge field presentation of the constrained Ladnau-de Gennes theory of the biaxial nematics, which have to explain their topologically dependent phase transformation, using the description of the transformation of disclinations in the biaxial nematic phase into the surface bojooms of a uniaxial NLC.

    17. Test of the CLAS12 RICH large scale prototype in the direct proximity focusing configuration

      E-Print Network [OSTI]

      Baltzell, N; Benmokhtar, F; Brooks, W; Cisbani, E; Contalbrigo, M; Alaoui, A El; Hafidi, K; Hoek, M; Kubarovsky, V; Lagamba, L; Lucherini, V; Malaguti, R; Mirazita, M; Montgomery, R A; Movsisyan, A; Musico, P; Orlandi, A; Orecchini, D; Pappalardo, L L; Perrino, R; Phillips, J; Pisano, S; Rossi, P; Squerzanti, S; Tomassini, S; Turisini, M; Viticchie, A

      2015-01-01

      A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and high-packed and high-segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). We report here the results of the tests of a large scale prototype of the RICH detector performed with the hadron beam of the CERN T9 experimental hall for the direct detection configuration. The tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1:500 in the whole momentum range.

    18. Models for the Configuration and Integrity of Partially Oxidized Fuel Rod Cladding at High Temperatures

      SciTech Connect (OSTI)

      Siefken, L.J.

      1999-01-01

      Models were designed to resolve deficiencies in the SCDAP/RELAP5/MOD3.2 calculations of the configuration and integrity of hot, partially oxidized cladding. These models are expected to improve the calculations of several important aspects of fuel rod behavior. First, an improved mapping was established from a compilation of PIE results from severe fuel damage tests of the configuration of melted metallic cladding that is retained by an oxide layer. The improved mapping accounts for the relocation of melted cladding in the circumferential direction. Then, rules based on PIE results were established for calculating the effect of cladding that has relocated from above on the oxidation and integrity of the lower intact cladding upon which it solidifies. Next, three different methods were identified for calculating the extent of dissolution of the oxidic part of the cladding due to its contact with the metallic part. The extent of dissolution effects the stress and thus the integrity of the oxidic part of the cladding. Then, an empirical equation was presented for calculating the stress in the oxidic part of the cladding and evaluating its integrity based on this calculated stress. This empirical equation replaces the current criterion for loss of integrity which is based on temperature and extent of oxidation. Finally, a new rule based on theoretical and experimental results was established for identifying the regions of a fuel rod with oxidation of both the inside and outside surfaces of the cladding. The implementation of these models is expected to eliminate the tendency of the SCDAP/RELAP5 code to overpredict the extent of oxidation of the upper part of fuel rods and to underpredict the extent of oxidation of the lower part of fuel rods and the part with a high concentration of relocated material. This report is a revision and reissue of the report entitled, Improvements in Modeling of Cladding Oxidation and Meltdown.

    19. Physics and Engineering Assessments ?of the K-DEMO Magnet Configuration

      SciTech Connect (OSTI)

      Neilson, George H.; Brown, Thomas

      2014-09-01

      Increased attention is being given now to studies of next-step fusion facilities with nuclear missions. Among these, South Korea's K DEMO is unique in its focus on a high toroidal magnetic field, large major radius, steady-state tokamak design for the core of a facility to test fusion nuclear components in Phase I and, after upgrades, produce 500 MW of electricity in a Phase II. Innovative features of the K DEMO magnet set include the use of two toroidal field (TF) coil winding packs with conductor grading and a machine configuration designed for vertical maintenance. The magnet arrangement features large TF coils and widelyspaced poloidal field (PF) coils to accommodate removal of in-vessel components as large modules. Physics and engineering assessments of the pre-conceptual K-DEMO magnet configuration are reported, including: 1) design point and operating space assessment, 2) conductor assessment, and 3) structural assessment. It is found that a reference design point at 6.8 m major radius and 7.4 T toroidal field provides sufficient operating margins for the 500 MWe Phase II mission. Analyses of candidate cable-in-conduit conductors provide predictions of critical current degradation, both in the initial load cycle and an additionally with cyclic loading. A first-pass global analysis of the magnet system found minimal out-of-plane deformations of the TF coil, but an overstress condition in the inner leg of the TF coil. However an analysis taking into account elastic-plastic behavior, frictional sliding, and displacement shows that the structure can safely carry the load. Although the design evolution is still at an early stage, these assessments support the design point choices to date and the expectation that a feasible solution for the high-field K DEMO magnet system can be found.

    20. ALTERNATE PADDLE CONFIGURATION FOR IMPROVED WEAR RESISTANCE IN THE SALTSTONE MIXER

      SciTech Connect (OSTI)

      Reigel, M.; Fowley, M.

      2013-09-23

      The Saltstone Production Facility has a 10-inch Readco-Kurimoto continuous mixer that mixes the premix dry feeds and low-level waste salt solution to make fresh (uncured) saltstone. Inspection of the mixer in January 2013 showed significant wear on the third, fourth and fifth paddle pairs after the conveying augers. A 2-inch Readco-Kurimoto continuous mixer was used to test alternate paddle configurations for use in the 10-inch mixer to decrease the wear rate on the paddles. Two wear tests were conducted to investigate a method of reducing wear on the mixer paddles. The first test (wear test 2a) had a paddle configuration similar to the currently installed 10-inch mixer in the SPF. This test established baseline wear. The second test (wear test 2b) had a reconfigured paddle arrangement that replaced the flat paddles with helical paddles for paddle pairs 2 ? 6 and aligned paddle pair 1 with the augers. The intent of the reconfiguration was to more effectively convey the partially wetted dry feeds through the transition region and into the liquid feed where paddle wear is reduced due to dry feeds and salt solution being mixed at the intended water to premix ratio. The design of the helical paddles provides conveyance through the transition region to the liquid feed inlet. The alignment with the auger is aimed to provide a smoother transition (minimizing the discontinuity between the auger and paddle pair 1) into the downstream paddles. A soft metal with low wear resistance (6000 series aluminum) was used for the wear testing paddles to determine wear patterns while minimizing run time and maximizing wear rate. For the two paddle configurations tested using the scaled 2-inch Readco-Kurimoto continuous mixer, with the first six paddles after the augers replaced by the wear paddles and the remaining paddles were stainless steel. Since the 10-inch SPF mixer is designed with the liquid inlet centered over paddle pairs 5 and 6, the scaled 2-inch mixer was configured the same way. The wear rate from wear test 2a was approximately double the wear rate from wear test 2b for paddle pairs 4 and 5. For both configurations, there was little or no wear on paddle pairs 1, 2, 3 and 6 based on mass change, indicating that the un-wetted and fully wetted premix materials cause less wear than the partially wetted premix. Additionally, inspection of the wear surface of the paddles showed more deformation on the flat paddles than the helical paddles which was consistent with the wear rates. Aligning of the auger discharge flight with paddle pair 1 resulted in a lower wear rate paddle pair 1 rather than having them misaligned with the feed augers. During the paddle wear tests, polishing wear was observed on the inside barrel of the mixer. The polishing wear is evident on the upper housing clamshell and the lower housing clamshell primarily at paddle pairs 4 and 5, which is the transition region of the mixer. Wear on the mixer barrel increases the space between the paddles and the barrel, resulting in increased grout build up on the barrel. Since the mixer barrel cannot be reconfigured or replaced in the SPF, the method for mitigating wear on the barrel is to move the more viscous grout through the transition region as quickly as possible. In addition, the location of the liquid inlet does not allow for sufficient cleaning of the mixer since residual grout remains on paddle pairs 1 ? 4. As the paddles continue to wear and the self-cleaning capability of the paddles is lost, the lack of sufficient flushing would aid in grout build up between the barrel and the paddles which could eventually lead to decreased throughput capacity of the dry feeds. Changing the paddle configuration from flat to helical resulted in no change to the rheological properties of the grout mixture. Both tests produced a grout that is within the processing range of the SPF. Based on the results of this testing, it is recommended for the currently installed SPF mixer that paddle pairs 1 through 6 be helical rather than flat, with the paddle pair 1 aligned with the feed au

    1. Light Water Reactor Sustainability Program Technical Basis Guide Describing How to Perform Safety Margin Configuration Risk Management

      SciTech Connect (OSTI)

      Curtis Smith; James Knudsen; Bentley Harwood

      2013-08-01

      The INL has carried out a demonstration of the RISMC approach for the purpose of configuration risk management. We have shown how improved accuracy and realism can be achieved by simulating changes in risk – as a function of different configurations – in order to determine safety margins as the plant is modified. We described the various technical issues that play a role in these configuration-based calculations with the intent that future applications can take advantage of the analysis benefits while avoiding some of the technical pitfalls that are found for these types of calculations. Specific recommendations have been provided on a variety of topics aimed at improving the safety margin analysis and strengthening the technical basis behind the analysis process.

    2. Surface chemistry and bonding configuration of ultrananocrystalline diamond surfaces and their effects on nanotribological properties

      SciTech Connect (OSTI)

      Sumant, A. V.; Grierson, D. S.; Carpick, R. W.; Gerbi, J. E.; Carlisle, J. A.; Auciello, O.

      2007-12-15

      We present a comprehensive study of surface composition and nanotribology for ultrananocrystalline diamond (UNCD) surfaces, including the influence of film nucleation on these properties. We describe a methodology to characterize the underside of the films as revealed by sacrificial etching of the underlying substrate. This enables the study of the morphology and composition resulting from the nucleation and initial growth of the films, as well as the characterization of nanotribological properties which are relevant for applications including micro-/nanoelectromechanical systems. We study the surface chemistry, bonding configuration, and nanotribological properties of both the topside and the underside of the film with synchrotron-based x-ray absorption near-edge structure spectroscopy to identify the bonding state of the carbon atoms, x-ray photoelectron spectroscopy to determine the surface chemical composition, Auger electron spectroscopy to further verify the composition and bonding configuration, and quantitative atomic force microscopy to study the nanoscale topography and nanotribological properties. The films were grown on SiO{sub 2} after mechanically polishing the surface with detonation synthesized nanodiamond powder, followed by ultrasonication in a methanol solution containing additional nanodiamond powder. The sp{sup 2} fraction, morphology, and chemistry of the as-etched underside are distinct from the topside, exhibiting a higher sp{sup 2} fraction, some oxidized carbon, and a smoother morphology. The nanoscale single-asperity work of adhesion between a diamond nanotip and the as-etched UNCD underside is far lower than for a silicon-silicon interface (59.2{+-}2 vs 826{+-}186 mJ/m{sup 2}, respectively). Exposure to atomic hydrogen dramatically reduces nanoscale adhesion to 10.2{+-}0.4 mJ/m{sup 2}, at the level of van der Waals' interactions and consistent with recent ab initio calculations. Friction is substantially reduced as well, demonstrating a direct link between the surface chemistry and nanoscale friction. The proposed mechanism, supported by the detailed surface spectroscopic analysis, is the elimination of reactive (e.g., C*-), polar (e.g., C=O), and {pi}-bonded (C=C) surface groups, which are replaced by fully saturated, hydrogen-terminated surface bonds to produce an inert surface that interacts minimally with the contacting counterface.

    3. Surface chemistry and bonding configuration of ultrananocrystalline diamond surfaces and their effects on nanotribological properties.

      SciTech Connect (OSTI)

      Sumant, A. V.; Grierson, D. S.; Gerbi, J. E.; Carlisle, J. A.; Auciello, O.; Carpick, R. W.; Univ. of Wisconsin at Madison

      2007-12-01

      We present a comprehensive study of surface composition and nanotribology for ultrananocrystalline diamond (UNCD) surfaces, including the influence of film nucleation on these properties. We describe a methodology to characterize the underside of the films as revealed by sacrificial etching of the underlying substrate. This enables the study of the morphology and composition resulting from the nucleation and initial growth of the films, as well as the characterization of nanotribological properties which are relevant for applications including micro-/nanoelectromechanical systems. We study the surface chemistry, bonding configuration, and nanotribological properties of both the topside and the underside of the film with synchrotron-based x-ray absorption near-edge structure spectroscopy to identify the bonding state of the carbon atoms, x-ray photoelectron spectroscopy to determine the surface chemical composition, Auger electron spectroscopy to further verify the composition and bonding configuration, and quantitative atomic force microscopy to study the nanoscale topography and nanotribological properties. The films were grown on SiO{sub 2} after mechanically polishing the surface with detonation synthesized nanodiamond powder, followed by ultrasonication in a methanol solution containing additional nanodiamond powder. The sp{sup 2} fraction, morphology, and chemistry of the as-etched underside are distinct from the topside, exhibiting a higher sp{sup 2} fraction, some oxidized carbon, and a smoother morphology. The nanoscale single-asperity work of adhesion between a diamond nanotip and the as-etched UNCD underside is far lower than for a silicon-silicon interface (59.2 {+-} 2 vs 826 {+-} 186 mJ/m{sup 2}, respectively). Exposure to atomic hydrogen dramatically reduces nanoscale adhesion to 10.2 {+-} 0.4 mJ/m{sup 2}, at the level of van der Waals interactions and consistent with recent ab initio calculations. Friction is substantially reduced as well, demonstrating a direct link between the surface chemistry and nanoscale friction. The proposed mechanism, supported by the detailed surface spectroscopic analysis, is the elimination of reactive (e.g., C*-), polar (e.g., C-O), and {pi}-bonded (C-C) surface groups, which are replaced by fully saturated, hydrogen-terminated surface bonds to produce an inert surface that interacts minimally with the contacting counterface.

    4. The MIRTE Experimental Program: An Opportunity to Test Structural Materials in Various Configurations in Thermal Energy Spectrum

      SciTech Connect (OSTI)

      Leclaire, Nicolas; Le Dauphin, Francois-Xavier; Duhamel, Isabelle; Briggs, Blair; Piot, Jerome; Rennesson, Malvina; Laville, Arnaud

      2014-11-04

      The MIRTE (Materials in Interacting and Reflecting configurations, all Thicknesses) program was established to answer the needs of criticality safety practitioners in terms of experimental validation of structural materials and to possibly contribute to nuclear data improvement, which ultimately supports reactor safety analysis as well. MIRTE took the shape of a collaboration between the AREVA and ANDRA French industrialists and a noncommercial international funding partner such as the U.S. Department of Energy. The aim of this paper is to present the configurations of the MIRTE 1 and MIRTE 2 programs and to highlight the results of the titanium experiments recently published in the International Handbook of Evaluated Criticality Safety Benchmark Experiments.

    5. Java Plug-in Configuration for Version 7, Update 51 or Later Java Plug-in Version7, Update 51 for PC and Macrequires additional configuration before it will allow InfoView to

      E-Print Network [OSTI]

      California at Santa Cruz, University of

      Java Plug-in Configuration for Version 7, Update 51 or Later Java Plug-in Version7, Update 51. Open the Java Control Panel. · PC: o Click on Start Menu o Click on "Control Panel" o Click on the "Java" icon · Mac: o Click on Apple icon on upper left screen o Go to System Preferences o Click

    6. Mixed Waste Treatment Cost Analysis for a Range of GeoMelt Vitrification Process Configurations

      SciTech Connect (OSTI)

      Thompson, L. E.

      2002-02-27

      GeoMelt is a batch vitrification process used for contaminated site remediation and waste treatment. GeoMelt can be applied in several different configurations ranging from deep subsurface in situ treatment to aboveground batch plants. The process has been successfully used to treat a wide range of contaminated wastes and debris including: mixed low-level radioactive wastes; mixed transuranic wastes; polychlorinated biphenyls; pesticides; dioxins; and a range of heavy metals. Hypothetical cost estimates for the treatment of mixed low-level radioactive waste were prepared for the GeoMelt subsurface planar and in-container vitrification methods. The subsurface planar method involves in situ treatment and the in-container vitrification method involves treatment in an aboveground batch plant. The projected costs for the subsurface planar method range from $355-$461 per ton. These costs equate to 18-20 cents per pound. The projected cost for the in-container method is $1585 per ton. This cost equates to 80 cents per pound. These treatment costs are ten or more times lower than the treatment costs for alternative mixed waste treatment technologies according to a 1996 study by the US Department of Energy.

    7. An excited-state approach within full configuration interaction quantum Monte Carlo

      E-Print Network [OSTI]

      Blunt, N S; Booth, George H; Alavi, Ali

      2015-01-01

      We present a new approach to calculate excited states with the full configuration interaction quantum Monte Carlo (FCIQMC) method. The approach uses a Gram-Schmidt procedure, instantaneously applied to the stochastically evolving distributions of walkers, to orthogonalize higher energy states against lower energy ones. It can thus be used to study several of the lowest-energy states of a system within the same symmetry. This additional step is particularly simple and computationally inexpensive, requiring only a small change to the underlying FCIQMC algorithm. No trial wave functions or partitioning of the space is needed. The approach should allow excited states to be studied for systems similar to those accessible to the ground-state method, due to a comparable computational cost, while the excited states follow a similar sub-linear scaling of computational effort with system size to converge. As a first application we consider the carbon dimer in basis sets up to quadruple-zeta quality, and compare to exis...

    8. New compact hohlraum configuration research at the 1.7 MA Z-pinch generator

      SciTech Connect (OSTI)

      Kantsyrev, V. L. Shrestha, I. K.; Esaulov, A. A.; Safronova, A. S.; Shlyaptseva, V. V.; Osborne, G. C.; Astanovitsky, A. L.; Weller, M. E.; Stafford, A.; Schultz, K. A.; Cooper, M. C.; Chuvatin, A. S.; Rudakov, L. I.; Velikovich, A. L.; Cuneo, M. E.; Jones, B.; Vesey, R. A.

      2014-12-15

      A new compact Z-pinch x-ray hohlraum design with parallel-driven x-ray sources was experimentally demonstrated in a full configuration with a central target and tailored shine shields (to provide a symmetric temperature distribution on the target) at the 1.7 MA Zebra generator. This presentation reports on the joint success of two independent lines of research. One of these was the development of new sources – planar wire arrays (PWAs). PWAs turned out to be a prolific radiator. Another success was the drastic improvement in energy efficiency of pulsed-power systems, such as the Load Current Multiplier (LCM). The Zebra/LCM generator almost doubled the plasma load current to 1.7 MA. The two above-mentioned innovative approaches were used in combination to produce a new compact hohlraum design for ICF, as jointly proposed by SNL and UNR. Good agreement between simulated and measured radiation temperature of the central target is shown. Experimental comparison of PWAs with planar foil liners (PFL) - another viable alternative to wire array loads at multi-MA generators show promising data. Results of research at the University of Nevada Reno allowed for the study of hohlraum coupling physics at University-scale generators. The advantages of new hohlraum design applications for multi-MA facilities with W or Au double PWAs or PFL x-ray sources are discussed.

    9. Dye laser amplifier including an improved window configuration for its dye beam

      DOE Patents [OSTI]

      O'Neil, R.W.; Davin, J.M.

      1992-12-01

      A dye laser amplifier in which a continuously replenished supply of dye is excited with a first light beam in order to amplify the intensity of a second different light beam passing therethrough is disclosed herein. This amplifier includes a cell though which a continuous stream of the dye is caused to pass, and means for directing the first beam into the cell while the second beam is directed into and through the same cell. There is also disclosed herein a specific improvement to this amplifier which resides in the use of a pair of particularly configured windows through which the second beam passes along fixed paths as the second beam enters and exits the dye cell. Each of these windows has a relatively thick main section which is substantially larger in dimensions transverse to its beam path than the cross section of the second beam itself, whereby to add structural integrity to the overall window. At the same time, the latter includes a second section which is disposed entirely within the confines of the main section and through which the second beam is intended to pass in its entirety. This second section is made substantially thinner than the main section in order to reduce optical distortion as the second beam passes therethrough. 4 figs.

    10. Studies of Global Stability of Fluid-reversed Configuration Plasmas using a Rigid Body Model

      SciTech Connect (OSTI)

      First Author = H. Ji [Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ 08543 (US); M. Yamada [PPPL; R. Kulsrud [PPPL; N. Pomphrey [PPPL

      1998-04-01

      Global stability of field-reversed configuration (FRC) plasmas has been studied using a simple rigid body model in the parameter space ofs (ratio of separatrix radius to average ion gyroradius) and plasma elongation E (ratio of separatrix length to separatrix diameter). Tilt stability is predicted, independent of s, for FRC`s with low E(oblate), while the tilt stability of FRC`s with large E (prolate)depends on s/E. It is found that plasma rotation due to ion diamagnetic drift can stabilize the tilt mode when s/E is less than or equal to1.7. The so-called collisionless ion gyroviscosity also is identified to stabilize tilt when s/E is less than or equal to 2.2. Combining these two effects, the stability regime broadens to s/E is less than or equal to 2.8, consistent with previously developed theories. A small additional rotation (e.g., a Mach number of 0.2) can improve tilt stability significantly at large E. A similar approach is taken to study the physics of the shift stability. It is found that radial shift is unstable when E is < 1 WHILE AXIAL SHIFT IS UNSTABLE WHEN E is> 1. However, unlike tilt stability, gyroviscosity has little effect onshift stability.

    11. Quench Analysis of High Current Density Nb3Sn Conductors in Racetrack Coil Configuration

      E-Print Network [OSTI]

      Bajas, H; Bordini, B; Bottura, L; Izquierdo Bermudez, S; Feuvrier, J; Chiuchiolo, A; Perez, J C; Willering, G

      2015-01-01

      The luminosity upgrade of the Large Hadron Collider (HL-LHC) requires the development of new type of superconducting cables based on advanced Nb3Sn strands. In the framework of the FP7 European project EUCARD the cables foreseen for the HL-LHC project have been tested recently in a simplified racetrack coil configuration, the so-called Short Model Coil (SMC). In 2013 to 2014, two SMCs wound with 40-strand (RRP 108/127) cables, with different heat treatment processes, reached during training at 1.9 K a current and peak magnetic field of 15.9 kA, 13.9T,and 14.3 kA, 12.7 Trespectively. Using the measured signals from the voltage taps, the behavior of the quenches is analyzed in terms of transverse and longitudinal propagation velocity and hot spot temperature. These measurements are compared with both analytical and numerical calculations from adiabatic models.The coherence of the results from the presented independent methods helps in estimating the relevance of the material properties and the adiabatic assump...

    12. Turbine cooling configuration selection and design optimization for the high-reliability gas turbine. Final report

      SciTech Connect (OSTI)

      Smith, M J; Suo, M

      1981-04-01

      The potential of advanced turbine convectively air-cooled concepts for application to the Department of Energy/Electric Power Research Institute (EPRI) Advanced Liquid/Gas-Fueled Engine Program was investigated. Cooling of turbine airfoils is critical technology and significant advances in cooling technology will permit higher efficiency coal-base-fuel gas turbine energy systems. Two new airfoil construction techniques, bonded and wafer, were the principal designs considered. In the bonded construction, two airfoil sections having intricate internal cooling configurations are bonded together to form a complete blade or vane. In the wafer construction, a larger number (50 or more) of wafers having intricate cooling flow passages are bonded together to form a complete blade or vane. Of these two construction techniques, the bonded airfoil is considered to be lower in risk and closer to production readiness. Bonded airfoils are being used in aircraft engines. A variety of industrial materials were evaluated for the turbine airfoils. A columnar grain nickel alloy was selected on the basis of strength and corrosion resistance. Also, cost of electricity and reliability were considered in the final concept evaluation. The bonded airfoil design yielded a 3.5% reduction in cost-of-electricity relative to a baseline Reliable Engine design. A significant conclusion of this study was that the bonded airfoil convectively air-cooled design offers potential for growth to turbine inlet temperatures above 2600/sup 0/F with reasonable development risk.

    13. Nuclear lattice model and the electronic configuration of the chemical elements

      E-Print Network [OSTI]

      Jozsef Garai

      2015-07-07

      The fundamental organizing principle resulting in the periodic table is the nuclear charge. Arranging the chemical elements in an increasing atomic number order, a symmetry pattern known as the Periodic Table is detectable. The correlation between nuclear charge and the Periodic System of the Chemical Elements (PSCE) indicates that the symmetry emerges from the nucleus. Nuclear symmetry can only exist if the relative positions of the nucleons in the nucleus are invariant. Pauli exclusion principle can also be interpreted as the nucleons should occupy a lattice position. Based on symmetry and other indicatives face centered cubic arrangement have been proposed for the nuclear lattice. A lattice model, representing the protons and the neutrons by equal spheres and arranging them alternately in a face centered cubic structure forming a double tetrahedron, is able to reproduce all of the properties of the nucleus including the quantum numbers and the periodicity of the elements. Based on the geometry of the nuclear structure it is shown that when a new 'layer' of the nuclear structure starts then the distance between the first proton in the new layer and the charge center of the nucleus is smaller than the distance of the proton, which completed the preceding 'layer'. Thus a new valence electron shell should start to develop when the nuclear structure is expanded. The expansion of the double tetrahedron FCC nuclear lattice model offers a feasible physical explanation how the nucleus affects the electronic configuration of the chemical elements depicted by the periodic table.

    14. POLYMER ELECTROLYTE MEMBRANE ELECTROLYZER OPERATION WITH VARYING INLET WATER FEED CONFIGURATIONS

      SciTech Connect (OSTI)

      Fox, E

      2008-09-12

      Proton Exchange Membrane (PEM) electrolysis is a potential alternative technology to crack water in specialty applications where a dry gas stream is needed, such as isotope production. One design proposal is to feed the cathode of the electrolyzer with vapor phase water. This feed configuration would allow isotopic water to be isolated on the cathode side of the electrolyzer and the isotope recovery system could be operated in a closed loop. Tests were performed to characterize the difference in the current-voltage behavior between a PEM electrolyzer operated with a cathode water vapor feed and with an anode liquid water feed. The cathode water vapor feed cell had a maximum limiting current density of 100 mA/cm2 at 70 C compared to a current density of 800 mA/cm2 for the anode liquid feed cell at 70 C. The limiting current densities for the cathode water vapor feed cell were approximately 3 times lower than predicted by a water mass transfer model. It is estimated that a cathode water vapor feed electrolyzer system will need to be between 8-14 times larger in active area or number of cells than an anode liquid feed system.

    15. Low-frequency Raman 'fingerprints' of two-dimensional metal dichalcogenide layer stacking configurations

      SciTech Connect (OSTI)

      Puretzky, Alexander A; Liang, Liangbo; Li, Xufan; Xiao, Kai; Wang, Kai; Mahjouri-Samani, Masoud; Basile, Leonardo; Idrobo Tapia, Juan Carlos; Sumpter, Bobby G; Meunier, Vincent; Geohegan, David B

      2015-01-01

      Stacked monolayers of two-dimensional (2D) materials present a new class of hybrid materials with tunable optoelectronic properties determined by their stacking orientation, order, and atomic registry. Atomic-resolution Z-contrast scanning transmission electron microscopy (AR-Z-STEM) and electron energy loss spectroscopy (EELS) can be used to determine the exact atomic registration between different layers, in few-layer 2D stacks, however fast optical characterization techniques are essential for rapid development of the field. Here, using two- and three-layer MoSe2 and WSe2 crystals synthesized by chemical vapor deposition we show that the generally unexplored low frequency (LF) Raman modes (< 50 cm-1) that originate from interlayer vibrations can serve as fingerprints to characterize not only the number of layers, but also their stacking configurations. Ab initio calculations and group theory analysis corroborate the experimental assignments determined by AR-Z-STEM and show that the calculated LF mode fingerprints are related to the 2D crystal symmetries.

    16. Facility Configuration Study of the High Temperature Gas-Cooled Reactor Component Test Facility

      SciTech Connect (OSTI)

      S. L. Austad; L. E. Guillen; D. S. Ferguson; B. L. Blakely; D. M. Pace; D. Lopez; J. D. Zolynski; B. L. Cowley; V. J. Balls; E.A. Harvego, P.E.; C.W. McKnight, P.E.; R.S. Stewart; B.D. Christensen

      2008-04-01

      A test facility, referred to as the High Temperature Gas-Cooled Reactor Component Test Facility or CTF, will be sited at Idaho National Laboratory for the purposes of supporting development of high temperature gas thermal-hydraulic technologies (helium, helium-Nitrogen, CO2, etc.) as applied in heat transport and heat transfer applications in High Temperature Gas-Cooled Reactors. Such applications include, but are not limited to: primary coolant; secondary coolant; intermediate, secondary, and tertiary heat transfer; and demonstration of processes requiring high temperatures such as hydrogen production. The facility will initially support completion of the Next Generation Nuclear Plant. It will secondarily be open for use by the full range of suppliers, end-users, facilitators, government laboratories, and others in the domestic and international community supporting the development and application of High Temperature Gas-Cooled Reactor technology. This pre-conceptual facility configuration study, which forms the basis for a cost estimate to support CTF scoping and planning, accomplishes the following objectives: • Identifies pre-conceptual design requirements • Develops test loop equipment schematics and layout • Identifies space allocations for each of the facility functions, as required • Develops a pre-conceptual site layout including transportation, parking and support structures, and railway systems • Identifies pre-conceptual utility and support system needs • Establishes pre-conceptual electrical one-line drawings and schedule for development of power needs.

    17. Feasibility study of a dual detector configuration concept for simultaneous megavoltage imaging and dose verification in radiotherapy

      SciTech Connect (OSTI)

      Deshpande, Shrikant; McNamara, Aimee L.; Holloway, Lois; Metcalfe, Peter; Vial, Philip

      2015-04-15

      Purpose: To test the feasibility of a dual detector concept for comprehensive verification of external beam radiotherapy. Specifically, the authors test the hypothesis that a portal imaging device coupled to a 2D dosimeter provides a system capable of simultaneous imaging and dose verification, and that the presence of each device does not significantly detract from the performance of the other. Methods: The dual detector configuration comprised of a standard radiotherapy electronic portal imaging device (EPID) positioned directly on top of an ionization-chamber array (ICA) with 2 cm solid water buildup material (between EPID and ICA) and 5 cm solid backscatter material. The dose response characteristics of the ICA and the imaging performance of the EPID in the dual detector configuration were compared to the performance in their respective reference clinical configurations. The reference clinical configurations were 6 cm solid water buildup material, an ICA, and 5 cm solid water backscatter material as the reference dosimetry configuration, and an EPID with no additional buildup or solid backscatter material as the reference imaging configuration. The dose response of the ICA was evaluated by measuring the detector’s response with respect to off-axis position, field size, and transit object thickness. Clinical dosimetry performance was evaluated by measuring a range of clinical intensity-modulated radiation therapy (IMRT) beams in transit and nontransit geometries. The imaging performance of the EPID was evaluated quantitatively by measuring the contrast-to-noise ratio (CNR) and spatial resolution. Images of an anthropomorphic phantom were also used for qualitative assessment. Results: The measured off-axis and field size response with the ICA in both transit and nontransit geometries for both dual detector configuration and reference dosimetry configuration agreed to within 1%. Transit dose response as a function of object thickness agreed to within 0.5%. All IMRT test patterns and clinical IMRT beams had gamma pass rates of ?98% at 2%/2 mm criteria. In terms of imaging performance, the measured CNR and spatial resolution (f{sub 50}) were 263.23 ± 24.85 and 0.4025 ± 1.25 × 10{sup ?3} for dual detector configuration and 324 ± 26.65 and 0.4141 ± 1.14 × 10{sup ?3} for reference imaging configuration, respectively. The CNR and spatial resolution were quantitatively worse in the dual detector configuration due to the additional backscatter. The difference in imaging performance was not visible in qualitative assessment of phantom images. Conclusions: Combining a commercially available ICA dosimetry device with a conventional EPID did not significantly detract from the performance of either device. Further improvements in imaging performance may be achieved with an optimized design. This study demonstrates the feasibility of a dual detector concept for simultaneous imaging and dosimetry in radiation therapy.

    18. Inductive Sustainment of a Field-Reversed Configuration Stabilized by Shaping, Magnetic Diffusion, and Finite-Larmor-Radius Effects

      E-Print Network [OSTI]

      Ji, Hantao

      (FRC) plasmas are sustained for up to 350 s, or 15 poloidal flux-confinement times, in the magnetic-reversed configuration (FRC) [1] is a toroidal plasma with unique physics properties: it is a diamagnetic equilibrium to a pressure profile consistent with the diamagnetic FRC equilibrium. Plasmas formed in nitrogen and neon

    19. Improved confinement and current drive of high temperature field reversed configurations in the new translation, confinement, and sustainment

      E-Print Network [OSTI]

      Washington at Seattle, University of

      configurations FRC by rotating magnetic fields RMF . However, in TCS the plasma temperature was limited University of Washington, Redmond Plasma Physics Laboratory, 14700 NE 95th Street, Suite 100, Redmond simple even-parity RMF drive. The higher temperatures, coupled with reduced recycling, allowed plasma

    20. Observations of Improved Stability and Confinement in a High-Self-Organized Spherical-Torus-Like Field-Reversed Configuration

      E-Print Network [OSTI]

      Washington at Seattle, University of

      -Torus-Like Field-Reversed Configuration H. Y. Guo, A. L. Hoffman, L. C. Steinhauer, and K. E. Miller Redmond Plasma (FRC) with a spherical- torus- (ST-)like core is produced in the translation, confinement. This plasma state exhibits a remarkable stabilizing property for the ubiquitous n 2 centrifugally driven

    1. Overall Power Core Configuration and System Integration for ARIES-ACT1 Fusion Power Plant , M.S. Tillack1

      E-Print Network [OSTI]

      Overall Power Core Configuration and System Integration for ARIES-ACT1 Fusion Power Plant X.R. Wang Consulting, Fliederweg 3, D 76351 Linkenheim-Hochstetten, GERMANY, smalang@web.de ARIES-ACT1 power plant has of the fusion power plant, the power core components of a sector, including the inboard and outboard FW

    2. MS Outlook 2003 Secure IMAP Configuration Settings for Windows-based PC for HMS Local and Remote Usage

      E-Print Network [OSTI]

      Zhang, Yi

      MS Outlook 2003 Secure IMAP Configuration Settings for Windows-based PC for HMS Local and Remote. Technical support is available only for the web-based email client, Outlook Web Access (OWA). · *Pre/install the updates for Outlook. (This document has been tested using MS Outlook 2003.) Step 1: Launch MS Outlook 2003

    3. MS Outlook 2003 Secure POP Configuration Settings for Windows-based PC for HMS Local and Remote Usage

      E-Print Network [OSTI]

      Zhang, Yi

      MS Outlook 2003 Secure POP Configuration Settings for Windows-based PC for HMS Local and Remote for the web-based email client, Outlook Web Access (OWA). · *Pre-doctoral students entering medical school/install any updates for Outlook. (This document has been tested using MS Outlook 2003.) Step 1: Launch MS

    4. Outlook 2002/2003 Secure POP Configuration Settings for PC For Harvard Medical School Local and Remote Usage

      E-Print Network [OSTI]

      Zhang, Yi

      Outlook 2002/2003 Secure POP Configuration Settings for PC For Harvard Medical School Local and Remote Usage Updated April 19, 2007 Overview Harvard Medical School supports Microsoft Outlook as a POP: With Outlook installed and open, select the Tools > E-mail accounts menu option. Step 2: Choose the "Add a new

    5. Alternative stripper configurations to minimize energy for CO2 capture Babatunde A. Oyenekan and Gary T. Rochelle*

      E-Print Network [OSTI]

      Rochelle, Gary T.

      with 7m MEA shows that it is a feasible solvent, but can have high energy costs and significant solventJ/mol for 7m MEA it is improbable that K2CO3/PZ can be used in a simple stripper with a lower energy requirement at the expense of complexity and additional capital cost. Each of these configurations assumes

    6. Thermoacoustic instabilities in non zero Mach number mean flow configurations. K. Wieczorek1,2, F. Nicoud2

      E-Print Network [OSTI]

      Nicoud, Franck

      Thermoacoustic instabilities in non zero Mach number mean flow configurations. K. Wieczorek1,2, F In the calculation of thermoacoustic instabilities, a common assumption is that the mean flow velocity is small differences in the evaluation of the thermoacoustic modes present in the domain, especially for cases with non

    7. The Effects of Variable Quadriceps and Hamstring Loading Configurations on Knee Joint Kinematics During In Vitro Testing

      E-Print Network [OSTI]

      Shalhoub, Sami

      2012-08-31

      configuration of the extensor mechanism, with the largest difference of 2.8° and 0.9 mm at 15° and 45° knee flexion respectively. A weak vastus medialis induced an average lateral shift of 1.5 mm and an external rotation of 0.8° while a 0.9 mm medial shift and 0...

    8. Using Vertical Rock Uplift Patterns to Constrain the Three-Dimensional Fault Configuration in the Los Angeles Basin

      E-Print Network [OSTI]

      Kurapov, Alexander

      Using Vertical Rock Uplift Patterns to Constrain the Three-Dimensional Fault Configuration of geologic uplift patterns with results of three-dimensional mechanical models provides constraints in the northern Los Angeles basin, California. The modeled uplift matches well the geologic pattern of uplift as

    9. Accounting for a feature of the configuration of the loops in the primary circuit of VVER-440 reactors

      SciTech Connect (OSTI)

      Khazanov, A. L. [FBU 'Scientific and Engineering Center for Nuclear and Radiation Safety' (FBU 'NTTs YaRB') (Russian Federation)] [FBU 'Scientific and Engineering Center for Nuclear and Radiation Safety' (FBU 'NTTs YaRB') (Russian Federation)

      2013-09-15

      A feature of the configuration of the loops of the primary circuit of VVER-440 reactors and its influence on the characteristics of the main circulation pumps are analyzed. It is proposed that differences in the characteristics of the main reactor circulation pumps be taken account during the design and operation of nuclear power plants.

    10. Anode-supported thin-film fuel cells operated in a single chamber configuration 2T-I-12

      E-Print Network [OSTI]

      Haile, Sossina M.

      on the anode, producing a complex response in fuel cell power output. Under optimized gas compositions and flowAnode-supported thin-film fuel cells operated in a single chamber configuration 2T-I-12 Zongping of anode-supported, thin-film, single chamber fuel cells (SCFCs) have been investigated. Cells, in which Ni

    11. Different electrode configurations to optimize performance of multi-electrode microbial fuel cells for generating power or treating

      E-Print Network [OSTI]

      Different electrode configurations to optimize performance of multi- electrode microbial fuel cells a b s t r a c t Scaling-up of microbial fuel cells (MFCs) for practical applications requires compact. Introduction Microbial fuel cells (MFCs) are an emerging method for achieving sustainable wastewater treatment

    12. Optimization of membrane stack configuration for efficient hydrogen production in microbial reverse-electrodialysis electrolysis cells coupled

      E-Print Network [OSTI]

      Optimization of membrane stack configuration for efficient hydrogen production in microbial reverse reduced ammonia crossover and improved hydrogen production. a r t i c l e i n f o Article history improve the MREC process, making it a more efficient method for renewable hydrogen gas production. Ó 2013

    13. Particle Production of Carbon Target with 20Tto2T5m Configuration at 6.75 GeV

      E-Print Network [OSTI]

      McDonald, Kirk

      Particle Production of Carbon Target with 20Tto2T5m Configuration at 6.75 GeV (Preliminary) Xm; · Production Collection: (1.2 m downstream, 40 MeV production threshold kinetic energy (Default:0.03 GeV); EMCHR: The threshold energy applied collectively

    14. Plasma Science & Technology, vo1.7, No.1, Feb. 2005 Recent Results on Field Reversed Configurations from the

      E-Print Network [OSTI]

      Washington at Seattle, University of

      Plasma Science & Technology, vo1.7, No.1, Feb. 2005 Recent Results on Field Reversed ConfigurationsV and high density FRCs have been produced using the standard Field Reversed Theta Pinch (RFTP) method formed in the normal theta pinch manner into the confinement chamber containing the RMF an- tennas

    15. Towards a Self-Configurable Weather Research and Forecasting System Khalid Saleem, S. Masoud Sadjadi, Shu-Ching Chen

      E-Print Network [OSTI]

      Chen, Shu-Ching

      Towards a Self-Configurable Weather Research and Forecasting System Khalid Saleem, S. Masoud, Miami FL {ksale002, sadjadi,chens}@cs.fiu.edu ABSTRACT Current weather forecast and visualization systems lack the scalability to support numerous customized requests for weather research and forecasting

    16. Analyzing the Effects of Climate and Thermal Configuration on Community Energy Storage Systems (Presentation)

      SciTech Connect (OSTI)

      Neubauer, J.; Pesaran, A.; Coleman, D.; Chen, D.

      2013-10-01

      Community energy storage (CES) has been proposed to mitigate the high variation in output from renewable sources and reduce peak load on the electrical grid. Thousands of these systems may be distributed around the grid to provide benefits to local distribution circuits and to the grid as a whole when aggregated. CES must be low cost to purchase and install and also largely maintenance free through more than 10 years of service life to be acceptable to most utilities.Achieving the required system life time is a major uncertainty for lithium-ion batteries. The lifetime and immediate system performance of batteries can change drastically with battery temperature, which is a strong function of system packaging, local climate, electrical duty cycle, and other factors. In other Li-ion applications, this problem is solved via air or liquid heating and cooling systems that may need occasional maintenance throughout their service life. CES requires a maintenance-free thermal management system providing protection from environmental conditions while rejecting heat from a moderate electrical duty cycle. Thus, the development of an effective, low-cost, zero-maintenance thermal management system poses a challenge critical to the success of CES. NREL and Southern California Edison have collaborated to evaluate the long-term effectiveness of various CES thermal configurations in multiple climates by building a model of CES based on collected test data, integrating it with an NREL-developed Li-ion degradation model, and applying CES electrical duty cycles and historic location-specific meteorological data to forecast battery thermal response and degradation through a 10-year service life.

    17. A study of shock mitigating materials in a split Hopkinson bar configuration

      SciTech Connect (OSTI)

      Bateman, V.I.; Bell, R.G. III; Brown, F.A.; Hansen, N.R.

      1996-12-31

      Sandia National Laboratories (SNL) designs mechanical systems with electronics that must survive high shock environments. These mechanical systems include penetrators that must survive soil, rock, and ice penetration, nuclear transportation casks that must survive transportation environments, and laydown weapons that must survive delivery impact of 125-fps. These mechanical systems contain electronics that may operate during and after the high shock environment and that must be protected from the high shock environments. A study has been started to improve the packaging techniques for the advanced electronics utilized in these mechanical systems because current packaging techniques are inadequate for these more sensitive electronics. In many cases, it has been found that the packaging techniques currently used not only do not mitigate the shock environment but actually amplify the shock environment. An ambitious goal for this packaging study is to avoid amplification and possibly attenuate the shock environment before it reaches the electronics contained in the various mechanical system. As part of the investigation of packaging techniques, a two part study of shock mitigating materials is being conducted. This paper reports the first part of the shock mitigating materials study. A study to compare three thicknesses (0.125, 0.250, and 0.500 in.) of seventeen, unconfined materials for their shock mitigating characteristics has been completed with a split Hopkinson bar configuration. The nominal input as measured by strain gages on the incident Hopkinson bar is 50 fps {at} 100 {micro}s for these tests. It is hypothesized that a shock mitigating material has four purposes: to lengthen the shock pulse, to attenuate the shock pulse, to mitigate high frequency content in the shock pulse, and to absorb energy. Both time domain and frequency domain analyses of the split Hopkinson bar data have been performed to compare the materials` achievement of these purposes.

    18. A study of shock mitigating materials in a split Hopkins bar configuration. Phase 2

      SciTech Connect (OSTI)

      Bateman, V.I.; Brown, F.A.; Hansen, N.R.

      1997-12-31

      Sandia National Laboratories (SNL) designs mechanical systems with electronics that must survive high shock environments. These mechanical systems include penetrators that must survive soil and rock penetration, nuclear transportation casks that must survive transportation environments, and laydown weapons that must survive delivery impact. These mechanical systems contain electronics that may operate during and after the high shock environment and that must be protected from the high shock environments. A study has been started to improve the packaging techniques for the advanced electronics utilized in these mechanical systems because current packaging techniques are inadequate for these sensitive electronics. In many cases, it has been found that the packaging techniques currently used not only do not mitigate the shock environment but actually amplify the shock environment. An ambitious goal for this packaging study is to avoid amplification and possibly attenuate the shock environment before it reached the electronics contained in the various mechanical systems. Here, a study to compare two thickness values, 0.125 and 0.250 in. of five materials, GE RTV 630, HS II Silicone, Polysulfide Rubber, Sylgard 184, and Teflon for their shock mitigating characteristics with a split Hopkinson bar configuration has been completed. The five materials have been tested in both unconfined and confined conditions at ambient temperature and with two applied loads of 750 {mu}{epsilon} peak (25 fps peak) with a 100 {micro}s duration, measured at 10% amplitude, and 1500 {mu}{epsilon} peak (50 fps peak) with a 100 {micro}s duration, measured at 10% amplitude. The five materials have been tested at ambient, cold ({minus}65 F), and hot (+165 F) for the unconfined condition with the 750 {mu}{epsilon} peak (25 fps peak) applied load. Time domain and frequency domain analyses of the split Hopkinson bar data have been performed to compare how these materials lengthen the shock pulse, attenuate the shock pulse, reflect high frequency content in the shock pulse, and transmit energy.

    19. CRITICAL ASSUMPTIONS IN THE F-TANK FARM CLOSURE OPERATIONAL DOCUMENTATION REGARDING WASTE TANK INTERNAL CONFIGURATIONS

      SciTech Connect (OSTI)

      Hommel, S.; Fountain, D.

      2012-03-28

      The intent of this document is to provide clarification of critical assumptions regarding the internal configurations of liquid waste tanks at operational closure, with respect to F-Tank Farm (FTF) closure documentation. For the purposes of this document, FTF closure documentation includes: (1) Performance Assessment for the F-Tank Farm at the Savannah River Site (hereafter referred to as the FTF PA) (SRS-REG-2007-00002), (2) Basis for Section 3116 Determination for Closure of F-Tank Farm at the Savannah River Site (DOE/SRS-WD-2012-001), (3) Tier 1 Closure Plan for the F-Area Waste Tank Systems at the Savannah River Site (SRR-CWDA-2010-00147), (4) F-Tank Farm Tanks 18 and 19 DOE Manual 435.1-1 Tier 2 Closure Plan Savannah River Site (SRR-CWDA-2011-00015), (5) Industrial Wastewater Closure Module for the Liquid Waste Tanks 18 and 19 (SRRCWDA-2010-00003), and (6) Tank 18/Tank 19 Special Analysis for the Performance Assessment for the F-Tank Farm at the Savannah River Site (hereafter referred to as the Tank 18/Tank 19 Special Analysis) (SRR-CWDA-2010-00124). Note that the first three FTF closure documents listed apply to the entire FTF, whereas the last three FTF closure documents listed are specific to Tanks 18 and 19. These two waste tanks are expected to be the first two tanks to be grouted and operationally closed under the current suite of FTF closure documents and many of the assumptions and approaches that apply to these two tanks are also applicable to the other FTF waste tanks and operational closure processes.

    20. Steps in Validating Scrape-Off Layer Simulations of Attached and Detached Plasmas in the JET ITER-Like Wall Configuration

      E-Print Network [OSTI]

      Steps in Validating Scrape-Off Layer Simulations of Attached and Detached Plasmas in the JET ITER-Like Wall Configuration