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


1

An Analysis of RPM Validation Drift  

Science Conference Proceedings (OSTI)

Experiments that analyze dependencies in RedHat Linux and RpmFind.net show disturbing conflicts and overlaps between software packages that result in installing multiple differing versions of dynamic libraries. The final state of a system containing ...

2002-11-01T23:59:59.000Z

2

U-003:RPM Package Manager security update | Department of Energy  

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

03:RPM Package Manager security update 03:RPM Package Manager security update U-003:RPM Package Manager security update October 4, 2011 - 1:30pm Addthis PROBLEM: A vulnerability was reported in RPM Package Manager. A remote user can cause arbitrary code to be executed on the target user's system. PLATFORM: Version(s): 4.9.1.1 and prior versions. ABSTRACT: RPM Package Manager Header Validation Flaws Let Remote Users Execute Arbitrary Code. reference LINKS: RPM Package Manager Advisory RHSA-2011:1349-1 SecurityTracker Alert ID: 1026134 CVE-2011-3378 IMPACT ASSESSMENT: Medium Discussion: A remote user can create a specially crafted RPM package that, when queried or installed by the target user, will trigger a buffer overflow or memory corruption error and execute arbitrary code on the target system. The code

3

In-line thermoelectric module  

DOE Patents (OSTI)

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.

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

2000-01-01T23:59:59.000Z

4

In-Line Thermoelectric Module  

DOE Patents (OSTI)

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 maybe perpendicular to the direction-of current flow through the module.

Pento, Robert; Marks, James E.; Staffanson, Clifford D.

1998-07-28T23:59:59.000Z

5

AvrRpm1 Missense Mutations Weakly Activate RPS2-Mediated Immune Response in Arabidopsis thaliana  

E-Print Network (OSTI)

AvrRpm1 Missense Mutations Weakly Activate RPS2- Mediated Immune Response in Arabidopsis thaliana Plants recognize microbes via specific pattern recognition receptors that are activated by microbe to pathogen proliferation. Plant pathogenic bacteria like Pseudomonas syringae utilize a type III secretion

Dangl, Jeff

6

RPM-SIM-Based Analysis of Power Converter Applications in Renewable Energy Systems: Preprint  

DOE Green Energy (OSTI)

This paper briefly presents the RPM-SIM simulator and, in particular, its abilities to simulate and analyze renewable energy systems with power converters. This modular simulation system is used to study applications and cost-effective performance of renewable energy systems, analyze both static and dynamic performance, develop control strategies, and simulate autonomous renewable energy systems under different generation and load conditions (such as different wind speeds, temperature, insolation conditions, and load profiles).

Bialasiewicz, J. T.; Muljadi, E.; Nix, R. G.

2001-11-01T23:59:59.000Z

7

RPM-SIM Simulator: A Comparison of Simulated Versus Recorded Data (Preprint)  

Science Conference Proceedings (OSTI)

This paper compares simulated versus recorded data for the RPM-SIM simulator, developed at the National Renewable Energy Laboratory's National Wind Technology Center. The simulator was used to study the system dynamics of a wind/diesel hybrid power system. We also provide information on newly developed simulator modules that will be released. The simulator performed extremely well, demonstrating flexibility in making modifications and including specialized modules required for problem solving. We also outline several possible applications for this tool.

Bialasiewicz, J.T.; Muljadi, E.; Nix, G.; Drouilhet, S.

2001-07-25T23:59:59.000Z

8

Edison Configuration  

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

Configuration Configuration NERSC's newest supercomputer, named Edison after U.S. inventor and businessman Thomas Alva Edison, will have a peak performance of more than 2 petaflops...

9

Renewable Energy Power System Modular SIMulators: RPM-Sim User's Guide (Supersedes October 1999 edition)  

Science Conference Proceedings (OSTI)

This version of the RPM-SIM User's Guide supersedes the October 1999 edition. Using the VisSimTM visual environment, researchers developed a modular simulation system to facilitate an application-specific, low-cost study of the system dynamics for wind-diesel hybrid power systems. This manual presents the principal modules of the simulator and, using case studies of a hybrid system, demonstrates some of the benefits that can be gained from understanding the effects of the designer's modifications to these complex dynamic systems.

Bialasiewicz, J.T.; Muljadi, E.; Nix, G.R.; Drouilhet, S.

2001-03-28T23:59:59.000Z

10

IEMDC IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR  

SciTech Connect

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.

Michael J. Crowley; Prem N. Bansal

2004-10-01T23:59:59.000Z

11

In-Line Fluid Analysis Technology - Available Technologies ...  

Computers & Electronics; Manufacturing & Warehousing; Oil & Gas; Brochure(s) In-Line Fluid Analysis Brochure (pdf) Enabled by the Office ...

12

Alternate configuration  

SciTech Connect

These vugraphs present some configurations for the Tiber tokamak. The presentation concludes that the number of components exposed to the plasma vacuum should be minimized. (JDH)

Lousteau, D.C.

1987-01-01T23:59:59.000Z

13

Module Configuration  

SciTech Connect

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.

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)

2002-06-04T23:59:59.000Z

14

In-line rotating capacitive torque sensor  

DOE Patents (OSTI)

A method and apparatus for measuring torques developed along a rotating mechanical assembly comprising a rotating inner portion and a stationary outer portion. The rotating portion has an electrically-conductive flexing section fitted between two coaxial shafts in a configuration which varies radially in accordance with applied torque. The stationary portion comprises a plurality of conductive plates forming a surface concentric with and having a diameter slightly larger than the diameter of the rotating portion. The capacitance between the outer, nonrotating and inner, rotting portion varies with changes in the radial configuration of the rotating portion. Signal output varies approximately linearly with torque for small torques, nonlinearly for larger torques. The sensor is preferably surrounded by a conductive shell to minimize electrical interference from external sources. 8 figs.

Kronberg, J.W.

1990-01-08T23:59:59.000Z

15

In-line rotating capacitive torque sensor  

DOE Patents (OSTI)

Disclosed are a method and apparatus for measuring torques developed along a rotating mechanical assembly comprising a rotating inner portion and a stationary outer portion. The rotating portion has an electrically-conductive flexing section fitted between two coaxial shafts in a configuration which varies radially in accordance with applied torque. The stationary portion comprises a plurality of conductive plates forming a surface concentric with and having a diameter slightly larger than the diameter of the rotating portion. The capacitance between the outer, nonrotating and inner, rotating portion varies with changes in the radial configuration of the rotating portion. Signal output varies approximately linearly with torque for small torques, nonlinearly for larger torques. The sensor is preferably surrounded by a conductive shell to minimize electrical interference from external sources. 18 figures.

Kronberg, J.W.

1991-09-10T23:59:59.000Z

16

Franklin Configuration  

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

Configuration Configuration Franklin Configuration Franklin is a Cray XT4 with a peak performance of 352 TFlops, 38,288 processor cores, 78 TB of memory, and 436 TB of scratch disk space. Franklin was ranked as the world's eighth most powerful supercomputer in November 2008, and was No. 26 on the November 2010 Top 500 List. Quad CoreAMDOpteronprocessor Compute Nodes Franklin has 9,572 compute nodes, each with a quad-core AMD 'Budapest' 2.3 GHz processor. Read More » Login Nodes Franklin has 10 internal login nodes and 1 external login node. Read More » Files systems The Franklin system has 4 different file systems mounted which provide different levels of disk storage, I/O performance and file permanence. There are two Lustre file systems each with a peak performance of 17

17

Edison Configuration  

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

Configuration Configuration Configuration NERSC's newest supercomputer, named Edison after U.S. inventor and businessman Thomas Alva Edison, has a peak performance of 2.39 petaflops/sec, 124,608 compute cores for running scientific applications, 332 Terabytes of memory, and 7.5 Petabytes of online disk storage with a peak I/O bandwidth of 168 gigabytes (GB) per second. The product is known as a Cray XC30 (internal name "Cascade"), and the NERSC acquistion project is known as "NERSC 7." System Overview Cray XC30 supercomputer Peak performance 2.39 petaflops/sec Sustained application performance on NERSC SSP codes: 258 Tflop/s (vs. 144 Tflop/s for Hopper) 5,192 computes nodes, 124,608 cores in total Cray Aries high-speed interconnect with Dragon Flay topoplogy (0.25 μs to 3.7 μs MPI latency, ~8GB/sec MPI bandwidth)

18

Edison Configuration  

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

Configuration Configuration Configuration NERSC's newest supercomputer, named Edison after U.S. inventor and businessman Thomas Alva Edison, will have a peak performance of more than 2 petaflops (PF, or 1015 floating point operations per second) when fully installed in 2013. The integrated storage system will have more than 6 petabytes (PB) of storage with a peak I/O bandwidth of 140 gigabytes (GB) per second. The product is known as a Cray XC30 (internal name "Cascade"), and the NERSC acquistion project is known as "NERSC 7." Edison will be installed in two phases. Phase I Installation: 4Q 2012 Early User Access: Started in February 2013. All users were enabled March 2, 2013. System Overview Cray Cascade supercomputer 664 computes nodes with 64 GB memory per node

19

Carver Configuration  

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

Configuration Configuration Configuration Overview Carver, a liquid-cooled IBM iDataPlex system, has 1202 compute nodes (9,984 processor cores). This represents a theoretical peak performance of 106.5 Teraflops/sec. Note that the above node count includes hardware that is dedicated to various strategic projects and experimental testbeds (e.g., Hadoop). As such, not all 1202 nodes will be available to all users at all times. All nodes are interconnected by 4X QDR InfiniBand technology, providing 32 Gb/s of point-to-point bandwidth for high-performance message passing and I/O. Compute Nodes 1,120 nodes each have two quad-core Intel Xeon X5550 ("Nehalem") 2.67 GHz processors (eight cores/node); 80 nodes each have two six-core Intel Xeon X5650 ("Westmere") 2.67 GHz processors (12 cores/node). 960 of the

20

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

SciTech Connect

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

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

2007-10-31T23:59:59.000Z

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


21

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

E-Print Network (OSTI)

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

Alexandre Diehl; Athanassios Z. Panagiotopoulos

2004-12-03T23:59:59.000Z

22

Impact of function inlining on resource-constrained embedded systems  

Science Conference Proceedings (OSTI)

With the development of computer systems, function inlining schemes were used to reduce execution time while increasing codes. In embedded systems such as wireless sensor nodes, there are extreme limitations on memory space and battery power. This is ... Keywords: embedded systems, function inlining, operating systems, wireless sensor networks

Bongjae Kim; Sangho Yi; Yookun Cho; Jiman Hong

2009-03-01T23:59:59.000Z

23

Microsoft PowerPoint - Risk_Portfolio_Manager(RPM)_overview_Under_Sec_DOE__2011_V4 Final 3-22-2011.ppt [Read-Only] [Compatibili  

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

Corporate Headquarters: Corporate Headquarters: Risk Management: Overview of 1010 Wayne Avenue, Suite 1150 Silver Spring, Maryland 20910 301.565.2988 Telephone 301.565.2995 Facsimile www.e-mcinc.com Overview of e-Gov Risk Portfolio Manager(tm) (e Gov RPM(tm)) V4 Satellite Offices: 80 M Street, S.E., Suite 715 Washington, DC 20003 13800 Coppermine Road, Suite 221 (e-Gov RPM(tm)) V4 for Under Secretary of Energy 13800 Coppermine Road, Suite 221 Herndon, Virginia 20171 e-Management - Proprietary Information March 2011 Today's Agenda 1) eGov RPM and use at DOE EM 2) Overview of the capabilities of eGov RPM(tm) 3) eGov RPM supports the Under Secretary of Energy's Program Cyber Security Plan (PCSP) Cyber Security Plan (PCSP) e-Management - Proprietary Information 2 e-Gov Risk Portfolio Manager is a multi-user, web based tool used for continuous monitoring

24

The comparison of three photovoltaic system designs using the photovoltaic reliability and performance model (PV-RPM).  

SciTech Connect

Most photovoltaic (PV) performance models currently available are designed to use irradiance and weather data and predict PV system output using a module or array performance model and an inverter model. While these models can give accurate results, they do so for an idealized system. That is, a system that does not experience component failures or outages. We have developed the Photovoltaic Reliability and Performance Model (PV-RPM) to more accurately model these PV systems by including a reliability component that simulates failures and repairs of the components of the system, as well as allow for the disruption of the system by external events such as lightning or grid disturbances. In addition, a financial component has also been included to help assess the profitability of a PV system.

Miller, Steven P.; Granata, Jennifer E.; Stein, Joshua S.

2012-12-01T23:59:59.000Z

25

Application of mixed mode integration and new implicit inline integration at Toyota  

E-Print Network (OSTI)

This paper reports results from applying inline integration and mixed mode integration to two real applications

S. Soejima; T. Matsuba

2002-01-01T23:59:59.000Z

26

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

DOE Patents (OSTI)

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

Hoff, Brian (East Peoria, IL)

2008-08-05T23:59:59.000Z

27

In-line process instrumentation for geothermal power plants  

DOE Green Energy (OSTI)

The economics of geothermal power depend on satisfactory plant reliability of continuous operation. Plant problems and extended downtime due to corrosion failures, scale buildup, or injection well plugging have affected many past geothermal projects. If in-line instrumentation can be developed to alert plant operators to correctable problems, then the cost and reliability of geothermal power will be improved. PNL has completed a problem of development of in-line corrosion and chemical instrumentation for binary cycle plants, and this technology has been used to set up a monitoring program at the Heber Binary Demonstration Power Plant. The current emphasis has shifted to development of particle meters for use on injection lines and CO/sub 2/ and pH probes for use in control of calcite scaling. Plans have been outlined to develop and demonstrate flash plant instrumentation for corrosion monitoring, scaling, steam purity, and injection line particle counting. 2 refs., 17 figs., 1 tab.

Shannon, D.W.; Robertus, R.J.; Sullivan, R.G.; Kindle, C.H.; Pierce, D.D.

1985-05-01T23:59:59.000Z

28

Retractable pin dual in-line package test clip  

DOE Patents (OSTI)

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.

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

1996-01-01T23:59:59.000Z

29

A 200 000 rpm, 2 kW Slotless Permanent Magnet Pierre-Daniel Pfister, Student Member IEEE and Yves Perriard, Senior Member IEEE  

E-Print Network (OSTI)

A 200 000 rpm, 2 kW Slotless Permanent Magnet Motor Pierre-Daniel Pfister, Student Member IEEE high speed (200 krpm, 2 kW) slotless permanent magnet motor, using an analytical model that reached 200 krpm. Index Terms--Very high speed, Slotless permanent magnet motor, Multiphysics analytical

Psaltis, Demetri

30

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

SciTech Connect

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.

Ostapenko, Sergei

2013-04-03T23:59:59.000Z

31

IEMDC - In-Line Electric Motor Driven Compressor  

Science Conference Proceedings (OSTI)

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.

Michael J. Crowley

2004-03-31T23:59:59.000Z

32

In-line assay monitor for uranium hexafluoride  

DOE Patents (OSTI)

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.

Wallace, S.A.

1980-03-21T23:59:59.000Z

33

IEMDC -IN-LINE ELECTRIC MOTOR DRIVEN COMPRESSOR  

SciTech Connect

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.

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

2004-01-01T23:59:59.000Z

34

Low Cost Geothermal Separators BLISS Boundary Layer Inline Separator Scrubber  

DOE Green Energy (OSTI)

A new compact, low cost, and high performance separator is being developed to help reduce the installed and O and M cost of geothermal power generation. This device has been given the acronym ''BLISS'' that stands for ''Boundary Layer Inline Separator Scrubber''. The device is the first of a series of separators, and in the case of injectates, scrubbers to address the cost-reduction needs of the industry. The BLISS is a multi-positional centrifugal separator primarily designed to be simply installed between pipe supports, in a horizontal position. This lower profile reduces the height safety concern for workers, and significantly reduces the total installation cost. The vessel can demand as little as one-quarter (25%) the amount of steel traditionally required to fabricate many large vertical separators. The compact nature and high separating efficiency of this device are directly attributable to a high centrifugal force coupled with boundary layer control. The pseudo isokinetic flow design imparts a self-cleaning and scale resistant feature. This polishing separator is designed to remove moderate amounts of liquid and entrained solids.

Jung, Douglas; Wai, King

2000-05-26T23:59:59.000Z

35

In-line assay monitor for uranium hexafluoride  

DOE Patents (OSTI)

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 monitor is intended for uses such as safeguard applications to assure that weapons grade uranium is not being produced in an enrichment cascade. 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 the uranium-235 present in the specimen. Simultaneously, the gamma emissions from the uranium-235 of the specimen and the source emissions transmitted through the sample are counted and stored in a multiple channel analyzer. The uranium-235 content of the specimen is determined from the comparison of the accumulated 185 keV energy counts and the reference energy counts. The latter is used to measure the total uranium isotopic content of the specimen. The process eliminates the necessity of knowing the system operating conditions and yet obtains the necessary data without need for large scintillation crystals and sophisticated mechanical designs.

Wallace, Steven A. (Knoxville, TN)

1981-01-01T23:59:59.000Z

36

Detection of hexavalent uranium with inline and field-portable immunosensors  

E-Print Network (OSTI)

Detection of hexavalent uranium with inline and field-form of hexavalent uranium was used in the developmentdifferent immunosensors for uranium detection. Specifically,

Melton, Scott J.

2009-01-01T23:59:59.000Z

37

Flexible in-lined reference monitor certification: challenges and future directions  

Science Conference Proceedings (OSTI)

Over the last few years, in-lined reference monitors (IRM's) have gained much popularity as successful security enforcement mechanisms. Aspect-oriented programming (AOP) provides one elegant paradigm for implementing IRM frameworks. There is a ... Keywords: aspect-oriented programming, in-lined reference monitors, runtime verification, static verification

Meera Sridhar; Kevin W. Hamlen

2011-01-01T23:59:59.000Z

38

Firewall Configuration Errors Revisited  

E-Print Network (OSTI)

The first quantitative evaluation of the quality of corporate firewall configurations appeared in 2004, based on Check Point FireWall-1 rule-sets. In general that survey indicated that corporate firewalls were often enforcing poorly written rule-sets, containing many mistakes. The goal of this work is to revisit the first survey. The current study is much larger. Moreover, for the first time, the study includes configurations from two major vendors. The study also introduce a novel "Firewall Complexity" (FC) measure, that applies to both types of firewalls. The findings of the current study indeed validate the 2004 study's main observations: firewalls are (still) poorly configured, and a rule-set's complexity is (still) positively correlated with the number of detected risk items. Thus we can conclude that, for well-configured firewalls, ``small is (still) beautiful''. However, unlike the 2004 study, we see no significant indication that later software versions have fewer errors (for both vendors).

Wool, Avishai

2009-01-01T23:59:59.000Z

39

PDSF Hardware Configuration  

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

Configuration Configuration Hardware Configuration Interactive (login) Nodes This page describes the interactive (login) nodes at PDSF. Read More » Compute Nodes Information about the PDSF compute (batch) nodes. Read More » Data Transfer Nodes This page describes the grid and data transfer nodes at PDSF. Read More » Eliza File Systems The eliza file systems at PDSF are used for bulk file storage. Read More » Other File Systems This page describes home directories, scratch space, /common and NGF. Read More » Specific Group Hardware This page describes the extra hardware used by the various scientific groups that use PDSF. Read More » PDSF at a Glance Interactive Nodes 4 pdsf.nersc.gov pdsf[1-4].nersc.gov Compute Nodes 232 2632 Cores GPFS Filesystems 835TB Eliza[1-18] Local Disk

40

Electronically configured battery pack  

DOE Green Energy (OSTI)

Battery packs for portable equipment must sometimes accommodate conflicting requirements to meet application needs. An electronically configurable battery pack was developed to support two highly different operating modes, one requiring very low power consumption at a low voltage and the other requiring high power consumption at a higher voltage. The configurable battery pack optimizes the lifetime and performance of the system by making the best use of all available energy thus enabling the system to meet its goals of operation, volume, and lifetime. This paper describes the cell chemistry chosen, the battery pack electronics, and tradeoffs made during the evolution of its design.

Kemper, D.

1997-03-01T23:59:59.000Z

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


41

HTAR Client Configuration and Installation  

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

Configuration and Installation Configuration and Installation HTAR Configuration and Installation HTAR is an archival utility similar to gnu-tar that allows for the archiving and extraction of local files into and out of HPSS. Configuration Instructions This distribution has default configuration settings which will work for most environments. If you want to use the default values (recommended) you can skip to the section labeled INSTALLATION INSTRUCTIONS. In certain environments, for example if your installation is on a machine which has more than one network interface, you may want to change some of these default settings. To help with this, an interactive Configure script is provided. To use it do $ ./Configure prior to installing. Configure will provide a description of the options

42

Power converter connection configuration  

DOE Patents (OSTI)

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.

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)

2008-11-11T23:59:59.000Z

43

Substation Configuration Reliability 1 Reliability of Substation Configurations  

E-Print Network (OSTI)

-Repairable Components," Power Learn Electric Power Engineering Education, Module PE.PAS.U15.5, 2005. #12;SubstationSubstation Configuration Reliability 1 Reliability of Substation Configurations Daniel Nack, Iowa substation, it still contains what could be described as weak points or points of failure that would lead

McCalley, James D.

44

Recurrent Rotor-Router Configurations  

E-Print Network (OSTI)

We prove the existence of recurrent initial configurations for the rotor walk on many graphs, including Z^d, and planar graphs with locally finite embeddings. We also prove that recurrence and transience of rotor walks are invariant under changes in the starting vertex and finite changes in the initial configuration.

Angel, Omer

2011-01-01T23:59:59.000Z

45

Recurrent Rotor-Router Configurations  

E-Print Network (OSTI)

We prove the existence of recurrent initial configurations for the rotor walk on many graphs, including Z d, and planar graphs with locally finite embeddings. We also prove that recurrence and transience of rotor walks are invariant under changes in the starting vertex and finite changes in the initial configuration.

Omer Angel; Alexander E. Holroyd

2011-01-01T23:59:59.000Z

46

A Proof Carrying Code Framework for Inlined Reference Monitors in Java Bytecode  

E-Print Network (OSTI)

We propose a light-weight approach for certification of monitor inlining for sequential Java bytecode using proof-carrying code. The goal is to enable the use of monitoring for quality assurance at development time, while minimizing the need for post-shipping code rewrites as well as changes to the end-host TCB. Standard automaton-based security policies express constraints on allowed API call/return sequences. Proofs are represented as JML-style program annotations. This is adequate in our case as all proofs generated in our framework are recognized in time polynomial in the size of the program. Policy adherence is proved by comparing the transitions of an inlined monitor with those of a trusted "ghost" monitor represented using JML-style annotations. At time of receiving a program with proof annotations, it is sufficient for the receiver to plug in its own trusted ghost monitor and check the resulting verification conditions, to verify that inlining has been performed correctly, of the correct policy. We ha...

Dam, Mads

2010-01-01T23:59:59.000Z

47

Configuring intelligent mediators using ontologies  

Science Conference Proceedings (OSTI)

This paper presents a new intelligent mediators configuration approach which exploits high expressive description logics to represent metadata, and reasoning tasks in order to build more flexible mediation systems. A user specifies a needs expression ...

Gennaro Bruno; Christine Collet; Genoveva Vargas-Solar

2006-03-01T23:59:59.000Z

48

ASCE Avionic System Configuration Evaluation  

Science Conference Proceedings (OSTI)

ASCE - Avionic System Configuration Evaluation A novel approach to the problems associated with the development of total avionics systems design and evaluation is described. The ASCE framework provides a general, interactive aid for comparing and evaluating ...

Joe Clema; Stephen Zissos

1978-06-01T23:59:59.000Z

49

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

Science Conference Proceedings (OSTI)

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.

Abdollahpour, Daryoush [Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, GR-71110 Heraklion (Greece); Physics Department, University of Crete, GR-71003 Heraklion (Greece); Papazoglou, Dimitrios G.; Tzortzakis, Stelios [Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, GR-71110 Heraklion (Greece); Materials Science and Technology Department, University of Crete, GR-71003 Heraklion (Greece)

2011-11-15T23:59:59.000Z

50

Configuration  

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

the login nodes with ssh username@genepool.nersc.gov. The login nodes have 32 GB of RAM, have 2.3GHz processors and have 8 cores each. "gpint" Analysis Nodes Genepool also...

51

Configurations  

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

difference between a loop in a structural template and its aligned (loop) region in the query sequence. e.g., MaxLoopSize 20 MaxSkipSeqSize (default 30): the maximum allowed...

52

CRAD, Configuration Management - Oak Ridge National Laboratory...  

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

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

53

CRAD, Configuration Management - Oak Ridge National Laboratory...  

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

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

54

DEVELOPMENT OF AN EMAT IN-LINE INSPECTION SYSTEM FOR DETECTION, DISCRIMINATION, AND GRADING OF STRESS CORROSION CRACKING IN PIPELINES  

SciTech Connect

This report describes progress, experiments, and results for a project to develop a pipeline inline inspection tool that uses electromagnetic acoustic transducers (EMATs) to detect and grade stress corrosion cracking (SCC). There is a brief introduction that gives background material about EMATs and relevant previous Tuboscope work toward a tool. This work left various choices about the modes and transducers for this project. The experimental section then describes the lab systems, improvements to these systems, and setups and techniques to narrow the choices. Improvements, which involved transducer matching networks, better magnetic biasing, and lower noise electronics, led to improved signal to noise (SNR) levels. The setups permitted transducer characterizations and interaction measurements in plates with man-made cracks, pipeline sections with SCC, and a full pipe with SCC. The latter were done with a moveable and compact EMAT setup, called a lab mouse, which is detailed. Next, the results section justifies the mode and transducer choices. These were for magnetostrictive EMATs and the use of EMAT launched modes: SH0 (at 2.1 MHz-mm) and SV1 (at 3.9 MHz-mm). This section then gives details of measurements on these modes. The measurements consisted of signal to noise ratio, insertion loss, magnetic biasing sensitivities crack reflection and transmission coefficients, beam width, standoff and tilt sensitivities. For most of the measurements the section presents analysis curves, such as reflection coefficient versus crack depth. Some notable results for the chosen modes are: that acceptable SNRs were generated in a pipe with magnetostrictive EMATs, that optimum bias for magnetostrictive transmitters and receivers is magnetic saturation, that crack reflection and transmission coefficients from crack interactions agree with 2 D simulations and seem workable for crack grading, and that the mouse has good waveform quality and so is ready for exhaustive measurement EMAT scans of SCC interactions. This section also reviews further coil optimization and implementation requirements. These involve transmitter and receiver power, acquisition parameters, and magnetic configuration. At this time all these seem reasonable for an ILI tool.

Jeff Aron; Jon Gore, Roger Dalton; Stuart Eaton; Adrian Bowles; Owen Thomas; Tim Jarman

2003-07-01T23:59:59.000Z

55

Testing of In-Line Slurry Monitors and Pulsair Mixers with Radioactive Slurries  

SciTech Connect

Three in-line slurry monitoring instruments were demonstrated, tested, and evaluated for their capability to determine the transport properties of radioactive slurries. The instruments included the Endress + Hauser Promass 63M Coriolis meter for measuring density, the Lasentec M600P for measuring particle size distribution, and a prototype ultrasonic monitor that was developed by Argonne National Laboratory for measuring suspended solids concentration. In addition, the power consumption of the recirculation pump was monitored to determine whether this parameter could be used as a tool for in-line slurry monitoring. The Promass 63M and the M600P were also evaluated as potential indicators of suspended solids concentration. In order to use the Promass 63M as a suspended solids monitor, the densities of the fluid phase and the dry solid particle phase must be known. In addition, the fluid phase density and the dry solids density must remain constant, as any change will affect the correlation between the slurry density and the suspended solids concentration. For the M600P, the particle size distribution would need to remain relatively constant. These instruments were demonstrated and tested at the Gunite and Associated Tanks Remediation Project at the Oak Ridge National Laboratory. The testing of the instruments was conducted in parallel with the testing of a Pulsair mixing system, which was used to mix the contents of the selected tank. A total of six tests were performed. A submersible pump was positioned at two depths, while the Pulsair system was operated at three mixing rates.

Hylton, T.D.; Bayne, C.K.

1999-08-01T23:59:59.000Z

56

The United States Government Configuration Baseline ...  

Science Conference Proceedings (OSTI)

... ITL). The United States Government Configuration Baseline (USGCB) - Windows Vista Firewall Content. Warning Notice. ...

2013-08-02T23:59:59.000Z

57

The United States Government Configuration Baseline ...  

Science Conference Proceedings (OSTI)

... Laboratory (ITL). The United States Government Configuration Baseline (USGCB) - Windows 7 Content. Warning Notice. Do ...

2013-08-02T23:59:59.000Z

58

Network sensitivity to geographical configuration  

E-Print Network (OSTI)

Gravitational wave astronomy will require the coordinated analysis of data from the global network of gravitational wave observatories. Questions of how to optimally configure the global network arise in this context. We have elsewhere proposed a formalism which is employed here to compare different configurations of the network, using both the coincident network analysis method and the coherent network analysis method. We have constructed a network model to compute a figure-of-merit based on the detection rate for a population of standard-candle binary inspirals. We find that this measure of network quality is very sensitive to the geographic location of component detectors under a coincident network analysis, but comparatively insensitive under a coherent network analysis.

Antony C Searle; Susan M Scott; David E McClelland

2001-10-10T23:59:59.000Z

59

Tank waste remediation system configuration management plan  

SciTech Connect

The configuration management program for the Tank Waste Remediation System (TWRS) Project Mission supports management of the project baseline by providing the mechanisms to identify, document, and control the functional and physical characteristics of the products. This document is one of the tools used to develop and control the mission and work. It is an integrated approach for control of technical, cost, schedule, and administrative information necessary to manage the configurations for the TWRS Project Mission. Configuration management focuses on five principal activities: configuration management system management, configuration identification, configuration status accounting, change control, and configuration management assessments. TWRS Project personnel must execute work in a controlled fashion. Work must be performed by verbatim use of authorized and released technical information and documentation. Application of configuration management will be consistently applied across all TWRS Project activities and assessed accordingly. The Project Hanford Management Contract (PHMC) configuration management requirements are prescribed in HNF-MP-013, Configuration Management Plan (FDH 1997a). This TWRS Configuration Management Plan (CMP) implements those requirements and supersedes the Tank Waste Remediation System Configuration Management Program Plan described in Vann, 1996. HNF-SD-WM-CM-014, Tank Waste Remediation System Configuration Management Implementation Plan (Vann, 1997) will be revised to implement the requirements of this plan. This plan provides the responsibilities, actions and tools necessary to implement the requirements as defined in the above referenced documents.

Vann, J.M.

1998-01-08T23:59:59.000Z

60

Film condensation of R-113 on in-line bundles of horizontal finned tubes  

Science Conference Proceedings (OSTI)

Film condensation of R-113 on in-line bundles of horizontal finned tubes with vertical vapor downflow was experimentally investigated. Two tubes with flat-sided annular fins and four tubes with three-dimensional fins were tested. The test sections were 3 {times} 15 tube bundles with and without two rows of inundation tubes at the top. Heat transfer measurements were carried out on a row-by-row basis. The heat transfer enhancement due to vapor shear was much less for a finned tube bundle than for a smooth tube bundle. The decrease in heat transfer due to condensate inundation was more marked for a three-dimensional fin tube than for a flat-sided fin tube. The predictions of the previous theoretical model for a bundle of flat-sided fin tubes agreed well with the measured data for low vapor velocity and a small to medium condensate inundation rate. Among the six tubes tested, the highest heat transfer performance was provided by the flat-sided fin tube with fin dimensions close to the theoretically determined optimum values.

Honda, H. (Kyushu Univ., Fukuoka (Japan)); Uchima, B.; Nozu, S.; Nakata, H.; Torigoe, E. (Okayama Univ. (Japan))

1991-05-01T23:59:59.000Z

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


61

Security Configuration Checklists for IT Commercial Products  

Science Conference Proceedings (OSTI)

Security Configuration Checklists for Commercial IT Products. ... The use of checklists improves the consistency and predictability of system security. ...

2013-01-15T23:59:59.000Z

62

Generating Heuristics to Control Configuration Processes  

Science Conference Proceedings (OSTI)

Configuration is the process of composing a system from a set of components such that the system fulfills a set of desired demands. The configuration process relies on a particular component model, which is a useful abstraction of the domain and the ... Keywords: configuration, design, heuristic search, knowledge-based systems, preprocessing

Benno Stein

1999-03-01T23:59:59.000Z

63

UConnect Wireless Connection Windows 7 Configuration  

E-Print Network (OSTI)

UConnect Wireless Connection Windows 7 Configuration page 1 revised February, 2012 Configuring a UConnect Wireless Connection on Windows 7 1. Open the Network and Sharing Center a. Click the Windows icon screen, select Network and Sharing Center. #12;UConnect Wireless Connection Windows 7 Configuration page

Provancher, William

64

In-line continuous monitoring system improve water plant EOR performance  

SciTech Connect

To optimize water plant performance and reduce maintenance expense, Unocal has installed a continuous produced-water monitoring system at its Dome water plant, which serves an enhanced oil recovery (EOR) project east of Bakersfield, Calif. These EOR leases are producing approximately 12,000 b/d of oil by injection of 40,000 equivalent b/d of steam. More than 75% of the water required for steaming is obtained by recycling produced water through separation and filtration stages to remove the residual oil and solids. The recycled water is then softened prior to being returned to the steam generators. Under normal operating conditions, produced water received at the main collection tank ranges from 50-200 ppm oil, and is reduced to 5 ppm or less downstream of the dissolved air flotation unit. The plant has been in operation for over 8 years and during that time has experienced the usual number of upsets in the oil-water separation system. These upsets have resulted in additional maintenance expenses to clean fouled garnet and anthracite in the multimedia filters, replace cartridge filter elements, and clean (sometimes replace) softener resin. Direct costs associated with these failures were estimated to be in excess of $30,000/year. Unocal had tried monitoring systems, with poor results due to low reliability or insufficient accuracy before it found a satisfactory system. It was an MPS-3000 in-line continuous monitor, manufactured by the Micro Pure Division of Rexnord Automation. Unlike previously tested monitors, this unit operates on a detection principle of reflected ultrasonic energy, a low maintenance design which would theoretically be unaffected by components other than oil and solids in the produced water.

Morin, R.J.; Gaucher, D.E.

1986-07-14T23:59:59.000Z

65

Definition: Electrical Profiling Configurations | Open Energy Information  

Open Energy Info (EERE)

Profiling Configurations Profiling Configurations Jump to: navigation, search Dictionary.png Electrical Profiling Configurations Electrical profiling is a DC resistivity survey which aims to trace lateral variations in the apparent resistivity structure of the subsurface. Traditionally, electrical profiling provides qualitative information of relative apparent resistivity values in order to detect anomalous geological features.[1] Also Known As Electrical mapping References ↑ http://www.amazon.com/Principles-Electric-Borehole-Geophysics-Geochemistry/dp/0444529942 Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Electrical_Profiling_Configurations&oldid=596184" Category: Definitions

66

Configuring Workstations for use with the PARS II System | Department...  

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

Configuring Workstations for use with the PARS II System Configuring Workstations for use with the PARS II System ConfiguringWorkstationsforusewiththePARSIISystem0.pdf...

67

Configuring Workstations for use with the PARS II System | Department...  

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

Configuring Workstations for use with the PARS II System Configuring Workstations for use with the PARS II System ConfiguringWorkstationsforusewiththePARSIISystem2013071...

68

DOCS System Configuration Management Plan | Department of Energy  

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

DOCS System Configuration Management Plan DOCS System Configuration Management Plan The DOCS Systems Configuration Management Plan (SCMP), from an actual DOE systems engineering...

69

Actes JFPC 2006 CSP dynamiques en configuration  

E-Print Network (OSTI)

Actes JFPC 2006 CSP dynamiques en configuration Article Jeune Chercheur JFPC'06 Thomas van'Albi-Carmaux, Route de Teillet, 81013 Albi Cedex 09 {vanouden, gaborit, aldanond, vareille}@enstimac.fr Résumé Les CSP, la configuration fait ressortir des besoins qui peuvent difficilement être traités par des CSP clas

Paris-Sud XI, Université de

70

Sensor network configuration under physical attacks  

Science Conference Proceedings (OSTI)

Sensor networks will typically operate in hostile environments, where they are susceptible to physical attacks resulting in physical node destructions. In this paper, we study impacts of physical attacks on network configuration w.r.t. lifetime. While ... Keywords: deployment, network configuration, network lifetime, physical attacks, physical node destruction, sensor networks

Xun Wang; Wenjun Gu; Kurt Schosek; Sriram Chellappan; Dong Xuan

2009-04-01T23:59:59.000Z

71

Automated modeling of modular robotic configurations  

Science Conference Proceedings (OSTI)

This research presents an automated method to build kinematic and dynamic models for assembling modular components of modular robotic systems. By comparison with other approaches, the proposed method is applicable to any robotic configuration with serial, ... Keywords: Automatic modeling, Computer-aided design, Configuration design, Finite element method, Modular architecture, Modular robotic system, Reconfigurable robot

Z. M. Bi; W. A. Gruver; W. J. Zhang; S. Y. T. Lang

2006-12-01T23:59:59.000Z

72

Configurable multi-perspective business process models  

Science Conference Proceedings (OSTI)

A configurable process model provides a consolidated view of a family of business processes. It promotes the reuse of proven practices by providing analysts with a generic modeling artifact from which to derive individual process models. Unfortunately, ... Keywords: Business process, Configurable process model, EPC

Marcello La Rosa; Marlon Dumas; Arthur H. M. ter Hofstede; Jan Mendling

2011-04-01T23:59:59.000Z

73

Configuration Management Plan for K Basins  

SciTech Connect

This plan describes a configuration management program for K Basins that establishes the systems, processes, and responsibilities necessary for implementation. The K Basins configuration management plan provides the methodology to establish, upgrade, reconstitute, and maintain the technical consistency among the requirements, physical configuration, and documentation. The technical consistency afforded by this plan ensures accurate technical information necessary to achieve the mission objectives that provide for the safe, economic, and environmentally sound management of K Basins and the stored material. The configuration management program architecture presented in this plan is based on the functional model established in the DOE Standard, DOE-STD-1073-93, {open_quotes}Guide for Operational Configuration Management Program{close_quotes}.

Weir, W.R.; Laney, T.

1995-01-27T23:59:59.000Z

74

Improving sensornet performance by separating system configuration from system logic  

Science Conference Proceedings (OSTI)

Many sensor network protocols are self-configuring, but independent self-configuration at different layers often results in suboptimal performance. We present Chi, a full-system configuration architecture that separates system logic from system configuration. ...

Niclas Finne; Joakim Eriksson; Nicolas Tsiftes; Adam Dunkels; Thiemo Voigt

2010-02-01T23:59:59.000Z

75

IN-LINE MEASUREMENTS BY COLORIMETRY. PART I. MEASUREMENTS OF ABSORPTION SPECTRA FOR THE DIRECT COLORIMETRIC DETERMINATION OF URANIUM.  

SciTech Connect

The absorption spectra of uranium (VI) and uranium (IV) in aqueous nitric acid solutions and in 30% TBP/Shellsol-T solutions were established. The absorbance of the various solutions was measured as a function of the wavelength, uranium concentration and nitric acid concentration. Most of the results obtained are presented in the form of diagrams. On the basis of the present investigation the possibility of using a direct in-line colorimetric determination of uranium in plant solutions can be assessed at each individual measuring point. (auth)

Markl, P.; Humblet, L.; Wichmann, H.; Eschrich, H.

1966-04-15T23:59:59.000Z

76

Vertical Electrical Sounding Configurations | Open Energy Information  

Open Energy Info (EERE)

Vertical Electrical Sounding Configurations Vertical Electrical Sounding Configurations Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Vertical Electrical Sounding Configurations Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Direct-Current Resistivity Survey Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

77

Electrical Profiling Configurations | Open Energy Information  

Open Energy Info (EERE)

Electrical Profiling Configurations Electrical Profiling Configurations Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electrical Profiling Configurations Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Direct-Current Resistivity Survey Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

78

Software Configuration Management (SCM) A Practical Guide | Department of  

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

Software Configuration Management (SCM) A Practical Guide Software Configuration Management (SCM) A Practical Guide Software Configuration Management (SCM) A Practical Guide This document provides a practical guide for integrating software configuration management disciplines into the management of software engineering projects. Software configuration management is the process of identifying and defining the software configuration items in a system, controlling the release and change of these items throughout the system lifecycle, recording and reporting the status of configuration items and change requests, and verifying the completeness and correctness of configuration items Software Configuration Management (SCM) A Practical Guide More Documents & Publications NMMSS Software Quality Assurance Plan SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration

79

Definition: Vertical Electrical Sounding Configurations | Open Energy  

Open Energy Info (EERE)

Sounding Configurations Sounding Configurations Jump to: navigation, search Dictionary.png Vertical Electrical Sounding Configurations A vertical electrical sounding (VES) is a DC resistivity survey which provides information regarding the change in apparent resistivity with depth. A quantitative interpretation of the results from VES measurements enable determination of the parameters for the geoelectric section.[1] Also Known As VES; Schlumberger Sounding References ↑ http://www.nga.com/Flyers_PDF/NGA_DC_Resistivity.pdf http://www.amazon.com/Principles-Electric-Borehole-Geophysics-Geochemistry/dp/0444529942 Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Vertical_Electrical_Sounding_Configurations&oldid=596183

80

Property:Mooring Configuration | Open Energy Information  

Open Energy Info (EERE)

Mooring Configuration Mooring Configuration Jump to: navigation, search Property Name Mooring Configuration Property Type Text Pages using the property "Mooring Configuration" Showing 25 pages using this property. (previous 25) (next 25) M MHK Technologies/Aegir Dynamo + Gravity base with tension leg platform MHK Technologies/AirWEC + Single point slack moored MHK Technologies/Aquantis + Proprietary MHK Technologies/Atlantis AN 150 + mono pylon MHK Technologies/Atlantis AR 1000 + Site specific design mono pylon or gravity base structure The AR 1000 deployed at EMEC makes use of a GBS foundation MHK Technologies/Atlantis AS 400 + N A MHK Technologies/C Plane + Tethered MHK Technologies/CETO Wave Energy Technology + Anchored MHK Technologies/Centipod + Proprietary MHK Technologies/Current Electric Generator + The anchors for the Current Electric Generator will be made from concrete and will be a gravity base

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


81

A decision maker for transport protocol configuration  

Science Conference Proceedings (OSTI)

This paper proposes an approach, called Protocol Configuration Decision Maker, for TCP to dynamically adapt to a network environment. The proposed mechanism monitors the network condition with parameters like loss rate. Then it consults a knowledge ...

Jae-Hyun Hwang; Jin-Hee Choi; Chuck Yoo

2006-05-01T23:59:59.000Z

82

A delta configured auxiliary resonant snubber inverter  

SciTech Connect

A delta ({Delta}) configured auxiliary resonant snubber inverter is developed to overcome the voltage floating problem in a wye (Y) configured resonant snubber inverter. The proposed inverter is to connect auxiliary resonant branches between phase outputs to avoid a floating point voltage which may cause over-voltage failure of the auxiliary switches. Each auxiliary branch consists of a resonant inductor and a reverse blocking auxiliary switch. Instead of using an anti-paralleled diode to allow resonant current to flow in the reverse direction, as in the Y-configured version, the resonant branch in the {Delta}-configured version must block the negative voltage, typically done by a series diode. This paper shows single-phase and three-phase versions of {Delta}-configured resonant snubber inverters and describes in detail the operating principle of a single-phase version. The extended three-phase version is proposed with non-adjacent state space vector modulation. For hardware implementation, a single-phase 1-kW unit and a three-phase 100-kW unit were built to prove the concept. Experimental results show the superiority of the proposed topology.

Lai, J.S.; Young, R.W.; Ott, G.W. Jr.; McKeever, J.W. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.; Peng, F.Z. [Univ. of Tennessee, Knoxville, TN (United States)]|[Oak Ridge National Lab., TN (United States)

1995-09-01T23:59:59.000Z

83

PARS II Configuration Update - Trusted Publisher  

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

Configuration Update - Trusted Publisher Configuration Update - Trusted Publisher As of July 15, 2013, all reports within SSS Reports will require a new Trusted Publisher to be accepted in order for reports to present correctly and as intended. The new Trusted Publisher certificate has been issued to the US Department of Energy by Entrust Code Signing Certification Authority - L1D and is valid until 4/22/2016. Depending upon the security settings within your domain for your workstation, administrative rights may be required to accept the new Trusted Publisher. If required, please contact your local IT Helpdesk for assistance. The original Trusted Publisher certificate, Dekker Ltd., may remain within your configuration settings. Acceptance of the new Trusted Publisher in no way affects any current reporting requirements.

84

A configuration system for the ATLAS trigger  

E-Print Network (OSTI)

will be exposed to proton-proton collisions from beams crossing at 40 MHz that have to be reduced to the few 100 Hz allowed by the storage systems. A three-level trigger system has been designed to achieve this goal. We describe the configuration system under construction for the ATLAS trigger chain. It provides the trigger system with all the parameters required for decision taking and to record its history. The same system configures the event reconstruction, Monte Carlo simulation and data analysis, and provides tools for accessing and manipulating the configuration data in all contexts. THE ATLAS TRIGGER The LHC proton bunches will cross at a frequency of approximately 40 MHz. The rate of events that can be committed to permanent storage in normal data taking is only

unknown authors

2006-01-01T23:59:59.000Z

85

Automated instruments for in-line accounting of highly enriched uranium at the Oak Ridge Y-12 Plant  

SciTech Connect

Two automated nondestructive assay instruments developed at Los Alamos in support of nuclear materials accounting needs are currently operating in-line at the Oak Ridge Y-12 facility for recovery of highly enriched uranium (HEU). One instrument provides the HEU inventory in the secondary solvent extraction system, and the other monitors HEU concentration in the secondary intermediate evaporator. Both instruments were installed in December 1982. Operational evaluation of these instruments was a joint effort of Y-12 and Los Alamos personnel. This evaluation included comparison of the solvent extraction system inventories with direct measurements performed on the dumped solution components of the solvent extraction system and comparison of concentration assay results with the external assays of samples withdrawn from the process. The function and design of the instruments and detailed results of the operational evaluation are reported.

Russo, P.A.; Strittmatter, R.B.; Sandford, E.L.; Stephens, M.M.; Brumfield, T.L.; Smith, S.E.; McCullough, E.E.; Jeter, I.W.; Bowers, G.L.

1985-02-01T23:59:59.000Z

86

Buried waste integrated demonstration configuration management plan  

SciTech Connect

This document defines plans for the configuration management requirements for the Buried Waste Integrated Demonstration (BWID) Program. Since BWID is managed programmatically by the Waste Technology Development Department (WTDD), WTDD Program Directive (PD) 1.5 (Document Preparation, Review, Approval, Publication, Management and Change Control) is to be followed for all internal EG&G Idaho, Inc., BWID programmatic documentation. BWID documentation generated by organizations external to EG&G Idaho is not covered by this revision of the Configuration Management Plan (CMP), but will be addressed in subsequent revisions.

Cannon, P.G.

1992-02-01T23:59:59.000Z

87

Buried waste integrated demonstration configuration management plan  

SciTech Connect

This document defines plans for the configuration management requirements for the Buried Waste Integrated Demonstration (BWID) Program. Since BWID is managed programmatically by the Waste Technology Development Department (WTDD), WTDD Program Directive (PD) 1.5 (Document Preparation, Review, Approval, Publication, Management and Change Control) is to be followed for all internal EG G Idaho, Inc., BWID programmatic documentation. BWID documentation generated by organizations external to EG G Idaho is not covered by this revision of the Configuration Management Plan (CMP), but will be addressed in subsequent revisions.

Cannon, P.G.

1992-02-01T23:59:59.000Z

88

Tank Waste Remediation Systems (TWRS) Configuration Management Implementation Plan  

SciTech Connect

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.

WEIR, W.R.

2000-12-18T23:59:59.000Z

89

A GAP package for computation with coherent configurations  

Science Conference Proceedings (OSTI)

We present a GAP package for computing with Schurian coherent configurations and their representations. Keywords: GAP, GRAPE, association scheme, centralizer ring, coherent configuration, permutation group, sage, semidefinite programming

Dmitrii V. Pasechnik; Keshav Kini

2010-09-01T23:59:59.000Z

90

The fundamentals of configuration in face perception and discrimination  

E-Print Network (OSTI)

THE DISSERTATION The Fundamentals of Configuration in FaceCALIFORNIA, SAN DIEGO The Fundamentals of Configuration inorganization of a face are fundamental to daily human

Pallett, Pamela Mitchell

2008-01-01T23:59:59.000Z

91

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

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

0: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control V-120: EMC Smarts Network Configuration Manager Java RMI Access Control...

92

Film bonded fuel cell interface configuration  

DOE Patents (OSTI)

An improved interface configuration for use between adjacent elements of a fuel cell stack. The interface is impervious to gas and liquid and provides resistance to corrosion by the electrolyte of the fuel cell. A multi-layer arrangement for the interface provides bridging electrical contact with a hot-pressed resin filling the void space.

Kaufman, Arthur (West Orange, NJ); Terry, Peter L. (Chatham, NJ)

1985-01-01T23:59:59.000Z

93

A survey of system configuration tools  

Science Conference Proceedings (OSTI)

We believe that informed choices are better choices. When you adopt a system configuration tool, it implies a significant investment in time and/or money. Before making such an investment, you want to pick the right tool for your environment. Therefore, ...

Thomas Delaet; Wouter Joosen; Bart Vanbrabant

2010-11-01T23:59:59.000Z

94

Configuration structures, event structures and Petri nets  

Science Conference Proceedings (OSTI)

In this paper the correspondence between safe Petri nets and event structures, due to Nielsen, Plotkin and Winskel, is extended to arbitrary nets without self-loops, under the collective token interpretation. To this end we propose a more general form ... Keywords: Concurrency, Configuration structures, Event structures, Petri nets, Propositional logic

R. J. van Glabbeek; G. D. Plotkin

2009-09-01T23:59:59.000Z

95

Construction processes configuration using process patterns  

Science Conference Proceedings (OSTI)

Process modeling is used in construction to support various simulation tasks. A major problem is that due to the one-of-a-kind character of construction projects a lot of work is needed each time to manually develop a project overall process schedule. ... Keywords: Ontology, Process configuration, Process modeling, Process pattern, Rules

A. Benevolenskiy; K. Roos; P. Katranuschkov; R. J. Scherer

2012-10-01T23:59:59.000Z

96

Definition and evaluation of product configurator development strategies  

Science Conference Proceedings (OSTI)

Product configurators represent one of the most successful applications of artificial intelligence principles. Product configurators are a subtype of software-based expert systems with a focus on the creation of product specifications. The use of product ... Keywords: Expert systems, Knowledge acquisition, Knowledge engineering, Product configuration, Product configurator

Anders Haug; Lars Hvam; Niels Henrik Mortensen

2012-06-01T23:59:59.000Z

97

Self-Configuration for Wireless Local Area Networks  

Science Conference Proceedings (OSTI)

This paper concentrates on self-configuration in wireless local area networks (WLANs). As the growth of the stringent demand of heterogeneity and re-configurability in future wireless networks, the initial configuration is getting more and more complex, ... Keywords: Analytic hierarchy process, Grey relational analysis, Neighboring AP discovery, Self-configuration

Zhiyong Feng; Qixun Zhang; Dian Fan; Litao Liang; Ping Zhang

2010-03-01T23:59:59.000Z

98

The evolution of network configuration: a tale of two campuses  

Science Conference Proceedings (OSTI)

Studying network configuration evolution can improve our understanding of the evolving complexity of networks and can be helpful in making network configuration less error-prone. Unfortunately, the nature of changes that operators make to network configuration ... Keywords: longitudinal analysis, network configuration, network evolution

Hyojoon Kim; Theophilus Benson; Aditya Akella; Nick Feamster

2011-11-01T23:59:59.000Z

99

Methodology for Fire Configuration Risk Management  

Science Conference Proceedings (OSTI)

This report presents a methodology for performing bounding fire risk assessments at nuclear power plants (NPPs) for on-line equipment configurations. The methodology is designed to support risk assessments prior to performing maintenance, as required by 10CFR50.65 Section (a)(4), the Maintenance Rule. Risk assessments are typically performed for internal events using probabilistic risk assessments (PRAs). However, fire probabilistic risk assessments (FPRAs) are often not available or their use for this p...

2005-12-20T23:59:59.000Z

100

Pitch-to-diameter effect on two-phase flow across an in-line tube bundle  

SciTech Connect

This paper reports on void fraction and friction pressure drop measurements that were made for an adiabatic, vertical two-phase flow of air-water across two horizontal, in-line, 5 {times} 20 rod bundles, one with a pitch-to-diameter ratio, P/D, of 1.3, the other 1.75. For both bundles the average void fraction showed a strong mass velocity effect and values were significantly less than those predicted by a homogeneous flow model. All void fraction data were found to be well correlated, with no P/D effect, using the dimensionless gas velocity, j*{sub g}. The two-phase friction multiplier data exhibited a strong effect of P/D and mass velocity, however, the data for both bundles could be well correlated with the Martinelli parameter for G {gt} 200 kg/m{sup 2}s. The correlations developed for void fraction and two-phase friction multiplier were successfully tested in predicting the total pressure drop in boiling freon experiments.

Dowlati, R.; Kawaji, M. (Dept. of Chemical Engineering and Applied Chemistry, Univ. of Toronto, Toronto, Ontario M5S 1A4 (CA)); Chan, M.M.C. (Ontario Hydro Research Div., Ontario Hydro Toronto, Ontario (CA))

1990-05-01T23:59:59.000Z

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


101

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

SciTech Connect

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.

Hylton, T.D.

2000-09-01T23:59:59.000Z

102

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

Science Conference Proceedings (OSTI)

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, such as Hanford, Savannah River, and Oak Ridge. In order to comply with various regulations and to circumvent potential problems associated with tank integrity, these wastes must be retrieved from the underground tanks, transferred to treatment facilities (or other storage location), and processed to a stable waste form. Each sludge waste will typically be mobilized by some mechanical means (e.g., mixer pump, submerged jet) and mixed with the supernatant to create a slurry that can be transferred by pipeline to the desired destination. Depending on the DOE site, such slurries may be transferred up to six miles. Since these wastes are radioactive, it is critically important that the transfers be conducted safely and successfully. The transport properties of a given slurry must be within the appropriate design limits to prevent the formation of a pipeline plug. The consequences of a plugged pipeline with radioactive material are unacceptable from the perspectives of safety, cost, and schedule. If a pipeline plug occurs and conventional methods (e.g., water flushing) are not successful, either the entire pipeline must be replaced (and the plugged pipeline remediated at a later date) or the plugged sections must be located, excised, and replaced. Either option would expose workers to radiation fields, and the cost of the project could escalate and result in a severe delay of the project schedule. Even if a pipeline plug were successfully removed by conventional methods, the project would experience some delay and additional costs. For example, flushing a plugged pipeline would require a shutdown of operations until the situation could be resolved; and such action would lead to the generation of additional liquid waste, which would also require treatment. To reduce the risk of plugging a pipeline, 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 slurry transfer is in progress. The baseline method for determining the transport properties of slurries involves sampling and analysis. This method is time-consuming and costly, and it does not provide real-time information. In addition, the 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 solid-liquid mixtures in the sample jar. The alternative method for determining the transport properties is in-line analysis. An inline 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 plugging (e.g., backflushing the pipeline with water).

Hylton, T.D.

2000-09-06T23:59:59.000Z

103

Surveillance Guide - CMS 3.1 Configuration Management Implementation  

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

CONFIGURATION MANAGEMENT IMPLEMENTATION CONFIGURATION MANAGEMENT IMPLEMENTATION 1.0 Objective The objective of this surveillance is to verify implementation of configuration management requirements. These surveillance activities provide a basis for evaluating the effectiveness of the contractor's program for implementation and control of configuration management and for establishing compliance with DOE requirements. References 2.1 DOE 430.1, Life Cycle Project Management 2.2 DOE-STD-1073-93, Guide for Operational Configuration Management 3.0 Requirements Implemented This surveillance is conducted to implement requirements of the Functions, Responsiblities and Authorities Manual (FRAM), Section 2, Configuration Management, FRAM #s 3 and 4. These requirements are

104

Category:Vertical Electrical Sounding Configurations | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Vertical Electrical Sounding Configurations Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Vertical Electrical Sounding Configurations page? For detailed information on Vertical Electrical Sounding Configurations as exploration techniques, click here. Category:Vertical Electrical Sounding Configurations Add.png Add a new Vertical Electrical Sounding Configurations Technique Pages in category "Vertical Electrical Sounding Configurations" The following 2 pages are in this category, out of 2 total.

105

Anatomy of neck configuration in fission decay  

E-Print Network (OSTI)

The anatomy of neck configuration in the fission decay of Uranium and Thorium isotopes is investigated in a microscopic study using Relativistic mean field theory. The study includes $^{236}U$ and $^{232}Th$ in the valley of stability and exotic neutron rich isotopes $^{250}U$, $^{256}U$, $^{260}U$, $^{240}Th$, $^{250}Th$, $^{256}Th$ likely to play important role in the r-process nucleosynthesis in stellar evolution. Following the static fission path, the neck configurations are generated and their composition in terms of the number of neutrons and protons are obtained showing the progressive rise in the neutron component with the increase of mass number. Strong correlation between the neutron multiplicity in the fission decay and the number of neutrons in the neck is seen. The maximum neutron-proton ratio is about 5 for $^{260}$U and $^{256}$Th suggestive of the break down of liquid-drop picture and inhibition of the fission decay in still heavier isotopes. Neck as precursor of a new mode of fission decay like multi-fragmentation fission may also be inferred from this study.

S. K. Patra; R. K. Choudhury; L. Satpathy

2010-05-10T23:59:59.000Z

106

HotSpot Software Configuration Management Plan  

SciTech Connect

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.

Walker, H; Homann, S G

2009-03-12T23:59:59.000Z

107

Fluid Mechanics, Drag Reduction and Advanced Configuration Aeronautics  

Science Conference Proceedings (OSTI)

Paper discusses Advanced Aircraft configurational approaches, across the speed range, which are either enabled, or greatly enhanced, by clever Flow Control. Configurations considered include Channel Wings with circulation control for VTOL [but non-hovering] ...

Bushnell Dennis M.

2000-12-01T23:59:59.000Z

108

A case study in configuration management tool deployment  

Science Conference Proceedings (OSTI)

While configuration management systems are generally regarded as useful, their deployment process is not well understood or documented. In this paper, we present a case study in configuration management tool deployment. We describe the motivating factors ...

Narayan Desai; Rick Bradshaw; Scott Matott; Sandra Bittner; Susan Coghlan; Rmy Evard; Cory Lueninghoener; Ti Leggett; John-Paul Navarro; Gene Rackow; Craig Stacey; Tisha Stacey

2005-12-01T23:59:59.000Z

109

How to Cheat at Configuring VmWare ESX Server  

Science Conference Proceedings (OSTI)

This book will detail the default and custom installation of VMware's ESX server as well as basic and advanced virtual machine configurations. It will then walk the reader through post installation configurations including installation and configuration ... Keywords: NT, Networking, Operating Systems

David Rule

2007-12-01T23:59:59.000Z

110

Illuminac: simultaneous naming and configuration for workspace lighting control  

Science Conference Proceedings (OSTI)

We explore natural and calm interfaces for configuring ubiquitous computing environments. A natural interface should enable the user to name a desired configuration and have the system enact that configuration. Users should be able to use familiar names ... Keywords: environment control, natural speech interfaces, non-negative matrix factorization

Ana Ramrez Chang; John Canny

2009-02-01T23:59:59.000Z

111

Semantic Web-Based Management of Routing Configurations  

Science Conference Proceedings (OSTI)

Today, network operators typically reason about network behaviour by observing the effects of a particular configuration in operation. This configuration process typically involves logging configuration changes and rolling back to a previous version ... Keywords: BGP, Conflict detection, Network management, Policy languages, Routing policy, Semantic web

Flix J. Garca Clemente; Jose M. Alcaraz Calero; Jorge Bernal Bernab; Juan Manuel Marn Prez; Gregorio Martnez Prez; Antonio F. Gmez Skarmeta

2011-06-01T23:59:59.000Z

112

A Radically Configurable Six-State Compound  

SciTech Connect

Most organic radicals possess short lifetimes and quickly undergo dimerization or oxidation. Here, we report on the synthesis by radical templation of a class of air- and water-stable organic radicals, trapped within a homo[2]catenane composed of two rigid and fixed cyclobis(paraquat-p-phenylene) rings. The highly energetic octacationic homo[2]catenane, which is capable of accepting up to eight electrons, can be configured reversibly, both chemically and electrochemically, between each one of six experimentally accessible redox states (0, 2+, 4+, 6+, 7+, and 8+) from within the total of nine states evaluated by quantum mechanical methods. All six of the observable redox states have been identified by electrochemical techniques, three (4+, 6+, and 7+) have been characterized by x-ray crystallography, four (4+, 6+, 7+, and 8+) by electron paramagnetic resonance spectroscopy, one (7+) by superconducting quantum interference device magnetometry, and one (8+) by nuclear magnetic resonance spectroscopy.

Barnes, J.C.; Fahrenbach, Albert C.; Cao, Dennis; Dyar, Scott M.; Frasconi, M.; Giesener, M. A.; Bentez, D.; Tkatchouk, E.; Li, H.; Stern, Charlotte L.; Sarjeant, Amy A.; Hartlieb, K.J.; Liu, Z.; Carmieli, Raanan; Botros, Y.Y.; Wasielewski, M. R.; Goddard III, W.A.; Stoddart, J. Fraser

2013-01-01T23:59:59.000Z

113

1-Safe Algorithms for Symmetric Site Configurations  

E-Print Network (OSTI)

In order to provide database availability in the presence of node and site failures, traditional 1-safe algorithms disallow primary and hot standby replicas to be located at the same site. This means that the failure of a single primary node must be handled like a failure of the entire primary site. Furthermore, this excludes symmetric site configurations, where the primary replicas are located at the site closest to the accessing clients. In this paper, we present three novel 1-safe algorithms that allow the above restrictions to be removed. The relative performance of these and the traditional algorithms are evaluated by means of simulation studies. Our main conclusion is that the restrictions of the traditional algorithms can be removed without significantly increasing the processing overhead, during normal operation. From an evaluation based on performance, availability, and transaction durability, the novel dependency tracking algorithm provides the best overall solution. 1 Intro...

Rune Humborstad; Maitrayi Sabaratnam; Svein-olaf Hvasshovd; Ystein Torbjrnsen

1997-01-01T23:59:59.000Z

114

Generator configuration for solid oxide fuel cells  

DOE Patents (OSTI)

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.

Reichner, Philip (Plum Boro, PA)

1989-01-01T23:59:59.000Z

115

DEVELOPMENT OF AN EMAT IN-LINE INSPECTION SYSTEM FOR DETECTION, DISCRIMINATION, AND GRADING OF STRESS CORROSION CRACKING IN PIPELINES  

SciTech Connect

This report describes prototypes, measurements, and results for a project to develop a prototype pipeline in-line inspection (ILI) tool that uses electromagnetic acoustic transducers (EMATs) to detect and grade stress corrosion cracking (SCC). The introduction briefly provides motivation and describes SCC, gives some background on EMATs and guided ultrasonic waves, and reviews promising results of a previous project using EMATs for SCC. The experimental section then describes lab measurement techniques and equipment, the lab mouse and prototypes for a mule, and scan measurements made on SCC. The mouse was a moveable and compact EMAT setup. The prototypes were even more compact circuits intended to be pulled or used in an ILI tool. The purpose of the measurements was to determine the best modes, transduction, and processing to use, to characterize the transducers, and to prove EMATs and mule components could produce useful results. Next, the results section summarizes the measurements and describes the mouse scans, processing, prototype circuit operating parameters, and performance for SH0 scans. Results are given in terms of specifications--like SNR, power, insertion loss--and parametric curves--such as signal amplitude versus magnetic bias or standoff, reflection or transmission coefficients versus crack depth. Initially, lab results indicated magnetostrictive transducers using both SH0 and SV1 modes would be worthwhile to pursue in a practical ILI system. However, work with mule components showed that SV1 would be too dispersive, so SV1 was abandoned. The results showed that reflection measurements, when normalized by the direct arrival are sensitive to and correlated with SCC. This was not true for transmission measurements. Processing yields a high data reduction, almost 60 to 1, and permits A and C scan display techniques and software already in use for pipeline inspection. An analysis of actual SH0 scan results for SCC of known dimensions showed that length and depth could be determined for deep enough cracks. Defect shadow and short length effects were apparent but may be taken into account. The SH0 scan was done with the mule prototype circuits and permanent magnet EMATs. These gave good enough results that this hardware and the processing techniques are very encouraging for use in a practical ILI tool.

Jeff Aron; Jeff Jia; Bruce Vance; Wen Chang; Raymond Pohler; Jon Gore; Stuart Eaton; Adrian Bowles; Tim Jarman

2005-02-01T23:59:59.000Z

116

X-ray Crystallographic Observation of 'In-line' and 'Adjacent' Conformations in a Bulged Self-Cleaving RNA/DNA Hybrid  

Science Conference Proceedings (OSTI)

The RNA strand in an RNA/DNA duplex with unpaired ribonucleotides can undergo self-cleavage at bulge sites in the presence of a variety of divalent metal ions (Husken et al., Biochemistry, 1996, 35:16591-16600). Transesterification proceeds via an in-line mechanism, with the 2'-OH of the bulged nucleotide attacking the 3'-adjacent phosphate group. The site-specificity of the reaction is most likely a consequence of the greater local conformational freedom of the RNA backbone in the bulge region. A standard A-form backbone geometry prohibits formation of an in-line arrangement between 2'-oxygen and phosphate. However, the backbone in the region of an unpaired nucleotide appears to be conducive to an in-line approach. Therefore, the bulge-mediated phosphoryl transfer reaction represents one of the simplest RNA self-cleavage systems. Here we focus on the conformational features of the RNA that underlie site-specific cleavage. The structures of an RNA/DNA duplex with single ribo-adenosyl bulges were analyzed in two crystal forms, permitting observation of 10 individual conformations of the RNA bulge moiety. The bulge geometries cover a range of relative arrangements between the 2'-oxygen of the bulged nucleotide and the P-O5' bond (including adjacent and near in-line ) and give a detailed picture of the conformational changes necessary to line up the 2'-OH nucleophile and scissile bond. Although metal ions are of crucial importance in the catalysis of analogous cleavage reactions by ribozymes, it is clear that local strain or conformational flexibility in the RNA also affect cleavage selectivity and rate (Soukup & Breaker, RNA, 1999, 5:1308-1325). The geometries of the RNA bulges frozen out in the crystals provide snapshots along the reaction pathway prior to the transition state of the phosphoryl transfer reaction.

Tereshko, V.; Wallace, S.T.; Usman, N.; Wincott, F.; Egli, M. (Northwestern)

2010-03-08T23:59:59.000Z

117

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)

A large radiological accident will result in the contamination of surrounding people, animal, vegetation etc. In such a situation assessing of the level of contamination becomes necessary to plan for the decontamination. There are plans existing for evaluating contamination on people. However, there are limited to no plans to evaluate animals. It is the responsibility of the United States Department of Agriculture (USDA) to decontaminate animals. So the objective of this thesis work was to design a 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, radiation source representing the contamination, cattle chute and different detector configurations were modeled. NaI scintillation detectors were modeled for this work. To find the optimal detector size and configuration, different detector orientations were simulated for different source positions using the MCNP code. Also simulations were carried out using different number and size of the detectors. It was found that using 2" x 4" x 16" detector yielded a minimum detectable activity (MDA) value of 0.4 microCi for 137Cs source.

Joe Justina, -

2012-08-01T23:59:59.000Z

118

Configuration Studies and Recommendations for the ILC DampingRings  

Science Conference Proceedings (OSTI)

We describe the results of studies comparing different options for the baseline configuration of the ILC damping rings. The principal configuration decisions apply to the circumference, beam energy, lattice type, and technology options for key components, including the injection/extraction kickers and the damping wigglers. To arrive at our recommended configuration, we performed detailed studies of a range of lattices representing a variety of different configuration options; these lattices are described in Chapter 2. The results of the various studies are reported in chapters covering issues of beam dynamics, technical subsystems, costs, and commissioning, reliability and upgrade ability. Our detailed recommendations for the baseline configuration are given in Chapter 7, where we also outline further research and development that is needed before a machine using our recommended configuration can be built and operated successfully. In the same chapter, we suggest possible alternatives to the baseline configuration.

Wolski, Andrzej; Gao, Jie; Guiducci, Susanna

2006-02-04T23:59:59.000Z

119

Process Synthesis and Optimization of Biorefinery Configurations  

E-Print Network (OSTI)

The objective of this research was to develop novel and applicable methodologies to solve systematically problems along a roadmap of constructing a globally optimum biorefinery design. The roadmap consists of the following problems: (1) synthesis of conceptual biorefinery pathways from given feedstocks and products, (2) screening of the synthesized pathways to identify the most economic pathways, (3) development of a flexible biorefinery configuration, and (4) techno-economic analysis of a detailed biorefinery design. In the synthesis problem, a systems-based "forward-backward" approach was developed. It involves forward synthesis of biomass to possible intermediates and reverse synthesis starting with desired products and identifying necessary species and pathways leading to them. Then, two activities are performed to generate complete biorefinery pathways: matching (if one of the species synthesized in the forward step is also generated by the reverse step) or interception (a task is determined to take a forward-generated species with a reverse-generated species by identifying a known process or by using reaction pathway synthesis to link to two species.) In the screening problem, the Bellman's Principle of Optimality was applied to decompose the optimization problem into sub-problems in which an optimal policy of available technologies was determined for every conversion step. Subsequently, either a linear programming formulation or dynamic programming algorithm was used to determine the optimal pathways. In the configuration design problem, a new class of design problems with flexibility was proposed to build the most profitable plants that operate only when economic efficiency is favored. A new formulation approach with proposed constraints called disjunctive operation mode was also developed to solve the design problems. In the techno-economic analysis for a detailed design of biorefinery, the process producing hydrocarbon fuels from lignocellulose via the carboxylate platform was studied. This analysis employed many state-of-the-art chemical engineering fundamentals and used extensive sources of published data and advanced computing resources to yield reliable conclusions to the analysis. Case studies of alcohol-producing pathways from lignocellulosic biomass were discussed to demonstrate the merits of the proposed approaches in the former three problems. The process was extended to produce hydrocarbon fuels in the last problem.

Pham, Viet

2011-08-01T23:59:59.000Z

120

SAPHIRE 8 Software Configuration Management Plan  

Science Conference Proceedings (OSTI)

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.

Curtis Smith

2010-01-01T23:59:59.000Z

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


121

A Moving Target Environment for Computer Configurations Using Genetic Algorithms  

Science Conference Proceedings (OSTI)

Moving Target (MT) environments for computer systems provide security through diversity by changing various system properties that are explicitly defined in the computer configuration. Temporal diversity can be achieved by making periodic configuration changes; however in an infrastructure of multiple similarly purposed computers diversity must also be spatial, ensuring multiple computers do not simultaneously share the same configuration and potential vulnerabilities. Given the number of possible changes and their potential interdependencies discovering computer configurations that are secure, functional, and diverse is challenging. This paper describes how a Genetic Algorithm (GA) can be employed to find temporally and spatially diverse secure computer configurations. In the proposed approach a computer configuration is modeled as a chromosome, where an individual configuration setting is a trait or allele. The GA operates by combining multiple chromosomes (configurations) which are tested for feasibility and ranked based on performance which will be measured as resistance to attack. The result of successive iterations of the GA are secure configurations that are diverse due to the crossover and mutation processes. Simulations results will demonstrate this approach can provide at MT environment for a large infrastructure of similarly purposed computers by discovering temporally and spatially diverse secure configurations.

Crouse, Michael; Fulp, Errin W.

2011-10-31T23:59:59.000Z

122

Configuration Management Plan for the Tank Farm Contractor  

Science Conference Proceedings (OSTI)

The Configuration Management Plan for the Tank Farm Contractor describes configuration management the contractor uses to manage and integrate its technical baseline with the programmatic and functional operations to perform work. The Configuration Management Plan for the Tank Farm Contractor supports the management of the project baseline by providing the mechanisms to identify, document, and control the technical characteristics of the products, processes, and structures, systems, and components (SSC). This plan is one of the tools used to identify and provide controls for the technical baseline of the Tank Farm Contractor (TFC). The configuration management plan is listed in the management process documents for TFC as depicted in Attachment 1, TFC Document Structure. The configuration management plan is an integrated approach for control of technical, schedule, cost, and administrative processes necessary to manage the mission of the TFC. Configuration management encompasses the five functional elements of: (1) configuration management administration, (2) configuration identification, (3) configuration status accounting, (4) change control, and (5 ) configuration management assessments.

WEIR, W.R.

2000-04-21T23:59:59.000Z

123

Building Information Modeling - A Minimum Mathematical Configuration  

E-Print Network (OSTI)

In the current context, the standardization of building construction is not limited to a specific country or to a specific building code. Trade globalization has emphasized the need for standardization in the process of exchange of design information, whether it is in the form of drawings or documents. Building Information Modeling is the latest transformational technology that supports interactive development of design information for buildings. No single Building Information Modeling software package is used in the Architecture Engineering Construction and Facilities Management industries, which is strength as new ideas develop, but a hindrance as the new ideas flow at a different pace into the various programs. The standards divergence of various software results in a limited ability to exchange data between and within projects, especially one sees the difficulty in moving data from one program to another. The Document eXchange File format represents an early attempt to standardize the exchange of drawing information by Autodesk. However, the data was limited to geometric data required for the production of plotted drawings. Metadata in a Building Information Model provides a method to add information to the basic geometric configuration provided in a Document eXchange File. Building Information Model programs use data structures to define smart objects that encapsulate building data in a searchable and robust format. Due to the complexity of building designs eXtensible Markup Language schemas of three dimensional models are often large files that can contain considerable amounts of superfluous information. The aim of this research is to exclude all the superfluous information from the design information and determine the absolute minimum information required to execute the construction of a project. A plain concrete beam element was used as the case study for this research. The results show that a minimal information schema can be developed for a simple building element. Further research is required on more complex elements.

Bhandare, Ruchika

2012-08-01T23:59:59.000Z

124

CRAD, Configuration Management - Los Alamos National Laboratory Weapons  

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

Configuration Management - Los Alamos National Laboratory Configuration Management - Los Alamos National Laboratory Weapons Facility CRAD, Configuration Management - Los Alamos National Laboratory Weapons Facility April 2004 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. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs. CRAD, Configuration Management - Los Alamos National Laboratory Weapons Facility More Documents & Publications CRAD, Configuration Management - Los Alamos National Laboratory TA 55 SST

125

V-036: EMC Smarts Network Configuration Manager Database Authentication  

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

6: EMC Smarts Network Configuration Manager Database 6: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability V-036: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability November 29, 2012 - 3:30am Addthis PROBLEM: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability PLATFORM: EMC Smarts Network Configuration Manager (NCM) all versions prior 9.1 ABSTRACT: Two vulnerabilities were reported in EMC Smarts Network Configuration Manager. REFERENCE LINKS: EMC Identifier: ESA-2012-057 Secunia Advisory SA51408 SecurityTracker Alert ID: 1027812 CVE-2012-4614 CVE-2012-4615 IMPACT ASSESSMENT: Medium DISCUSSION: The systems uses a hard-coded key to encrypt authentication credentials on the target system [CVE-2012-4615]. A local user with knowledge of the key

126

Plug-In Hybrid Electric Vehicles - PHEV Modeling - Powertrain Configuration  

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

Impact of Powertrain Configuration on Fuel Efficiency To evaluate the fuel efficiency potential of plug-in hybrid electric vehicles, it is necessary to compare the advantages and drawbacks of several powertrain configurations, ranging from power split to parallel and series. PSAT offers the unique ability to simulate and compare hundreds of powertrain configurations. The goal of the effort is to define the most promising configurations depending on the particular usage. Component sizes, fuel efficiency and cost will be used to make appropriate decisions. The configurations currently being considered include, but are not limited to: Pre-transmission parallel HEV Post-transmission parallel HEV Power split HEV (including THS II and GM 2 Mode) Series The figure below shows an example comparison of three powertrain configurations (parallel, series and power split).

127

Category:Electrical Profiling Configurations | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Electrical Profiling Configurations Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electrical Profiling Configurations page? For detailed information on Electrical Profiling Configurations as exploration techniques, click here. Category:Electrical Profiling Configurations Add.png Add a new Electrical Profiling Configurations Technique Pages in category "Electrical Profiling Configurations" The following 3 pages are in this category, out of 3 total. D DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Mise-Á-La-Masse)

128

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

DOE Green Energy (OSTI)

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

Pesaran, A.

2006-07-12T23:59:59.000Z

129

V-036: EMC Smarts Network Configuration Manager Database Authenticatio...  

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

and JBOSS. Addthis Related Articles V-120: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control U-247: EMC Cloud Tiering...

130

Review of Electrical System Configuration Management and Design...  

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

Independent Review of Electrical System Configuration Management and Design Change Control at the Savannah River Site, Waste Solidification Building Project July 2011 Office of...

131

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

Science Conference Proceedings (OSTI)

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.

Wu Zhifang [Key Laboratory of Optical Information and Technology, Ministry of Education and Institute of Modern Optics, Nankai University, Tianjin 300071 (China); OPTIMUS, School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 637553 (Singapore); Liu Yange; Wang Zhi; Han Tingting; Li Shuo [Key Laboratory of Optical Information and Technology, Ministry of Education and Institute of Modern Optics, Nankai University, Tianjin 300071 (China); Jiang Meng; Ping Shum, Perry [OPTIMUS, School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 637553 (Singapore); CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553 (Singapore); Quyen Dinh, Xuan [CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, Singapore 637553 (Singapore); Thales Solutions Asia Pte Ltd, R and T Department, 28 Changi North Rise, Singapore 498755 (Singapore)

2012-10-01T23:59:59.000Z

132

A Recurrent Rotor-Router Configuration in Z^3  

E-Print Network (OSTI)

Rotor Router models were first introduced by James Propp in 2002. A recurrent Rotor configuration is the one in which every state is visited infinitely often. In this project we investigated whether there is a recurrent Rotor configuration in Z^d (d>2).

A, Tulasi Ram Reddy

2010-01-01T23:59:59.000Z

133

An effective customization procedure with configurable standard models  

Science Conference Proceedings (OSTI)

In electronic catalogs, commodities such as computers and electronic equipment are specified as standard models although a variety of possible alternative specifications can exist as a combination of selected options; therefore, customized configurations ... Keywords: Case-based reasoning, Comparison shopping, Configuration, Constraint satisfaction problem, Customization

Hyun Jung Lee; Jae Kyu Lee

2005-11-01T23:59:59.000Z

134

HUSEC: A heuristic self configuration model for wireless sensor networks  

Science Conference Proceedings (OSTI)

The Network State Beacons (NSB) exchange rate is the critical parameter in monitoring the dynamic state of any self-configuring ad hoc sensor network. Along with the network state and the overhead control traffic, it determines both the time and nature ... Keywords: Beacon exchange rate, Self-configuration, Wireless ad hoc sensor networks

Mudasser Iqbal; Iqbal Gondal; Laurence S. Dooley

2007-05-01T23:59:59.000Z

135

Automated Configuration of Algorithms for Solving Hard Computational Problems  

E-Print Network (OSTI)

Automated Configuration of Algorithms for Solving Hard Computational Problems by Frank Hutter Dipl-performing algorithms for many hard problems are highly parameterized. Selecting the best heuristics and tuning studies the automation of this important part of algorithm design: the configuration of discrete algorithm

Hutter, Frank

136

Negotiating Boundaries. Configuration Management in Software DevelopmentTeams  

Science Conference Proceedings (OSTI)

Using case-study material from three small software development teams, this paper analyses the regionalisation of design spaces. Its main purpose is to understand problems and practices of cooperative work in such spaces. Configuration management ... Keywords: Articulation work, CSCW, Configuration Management (CM), Empirical studies

Hilda Tellio?lu; Ina Wagner

1997-12-01T23:59:59.000Z

137

Application for testing control configurations of binary distillation columns  

Science Conference Proceedings (OSTI)

The paper addresses the problem of testing various control configurations for binary distillation columns. Analyzing from plantwide control point of view the place of distillation column within the plant, the result will be the best control configuration. ... Keywords: composition control, distillation columns, dynamic simulations, plantwide control

Sanda Mihalache; Marian Popescu

2007-08-01T23:59:59.000Z

138

PV Manufacturing R&D Project Status and Accomplishments under 'In-Line Diagnostics and Intelligent Processing' and 'Yield, Durability and Reliability': Preprint  

DOE Green Energy (OSTI)

The PV Manufacturing R&D (PVMR&D) Project conducts cost-shared research and development programs with U.S. PV industry partners. There are currently two active industry partnership activities. ''In-line Diagnostics and Intelligent Processing'', launched in 2002, supports development of new in-line diagnostics and monitoring with real-time feedback for optimal process control and increased yield in the fabrication of PV modules, systems, and other system components. ''Yield, Durability and Reliability'', launched in late 2004, supports enhancement of PV module, system component, and complete system reliability in high-volume manufacturing. A second key undertaking of the PVMR&D Project is the collection and analysis of module production cost-capacity metrics for the U.S. PV industry. In the period from 1992 through 2005, the average module manufacturing cost in 2005 dollars fell 54% (5.7% annualized) to $2.74/Wp, and the capacity increased 18.6-fold (25% annualized) to 253 MW/yr. An experience curve analysis gives progress ratios of 87% and 81%, respectively, for U.S. silicon and thin-film module production.

Friedman, D. J.; Mitchell, R. L.; Keyes, B. M.; Bower, W. I.; King, R.; Mazer, J.

2006-05-01T23:59:59.000Z

139

CRAD, Configuration Management - Oak Ridge National Laboratory High Flux  

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

Configuration Management - Oak Ridge National Laboratory High Configuration Management - Oak Ridge National Laboratory High Flux Isotope Reactor CRAD, Configuration Management - Oak Ridge National Laboratory High Flux Isotope Reactor February 2007 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. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs. CRAD, Configuration Management - Oak Ridge National Laboratory High Flux Isotope Reactor More Documents & Publications

140

CRAD, Configuration Management - Los Alamos National Laboratory TA 55 SST  

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

Configuration Management - Los Alamos National Laboratory TA Configuration Management - Los Alamos National Laboratory TA 55 SST Facility CRAD, Configuration Management - Los Alamos National Laboratory TA 55 SST Facility June 2005 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, TA 55 SST Facility. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs. CRAD, Configuration Management - Los Alamos National Laboratory TA 55 SST Facility More Documents & Publications CRAD, Emergency Management - Los Alamos National Laboratory TA 55 SST

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


141

On fitting planetary systems in counter-revolving configurations  

E-Print Network (OSTI)

In Gayon & Bois (2008) and Gayon etal (2009), (i) we studied the theoretical feasibility and efficiency of retrograde mean motion resonances (i.e. two planets are both in orbital resonance and in counter-revolving configuration), (ii) we showed that retrograde resonances can generate interesting mechanisms of stability, and (iii) we obtained a dynamical fit involving a counter-revolving configuration that is consistent with the observations of the HD73526 planetary system. In the present paper, we present and analyze data reductions assuming counter-revolving configurations for eight compact multi-planetary systems detected through the radial velocity method. In each case, we select the best fit leading to a dynamically stable solution. The resulting data reductions obtained in rms and chi values for counter-revolving configurations are of the same order, and sometimes slightly better, than for prograde configurations. In the end, these fits tend to show that, over the eight studied multi-planetary system...

Gayon-Markt, Julie

2009-01-01T23:59:59.000Z

142

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

DOE Data Explorer (OSTI)

Surface Radiation Measurement Quality Control testing, including climatologically configurable limits

Gary Hodges; Tom Stoffel; Mark Kutchenreiter; Bev Kay; Aron Habte; Michael Ritsche; Victor Morris; Mary Anderberg

143

Special test configurations and $K$-stability of Fano varieties  

E-Print Network (OSTI)

Let $X$ be a Fano manifold. For any given test configuration $(\\mX, \\mL)$ of $(X, -rK_X)$, we modify it by first taking the log canonical modification and then using the minimal model program (MMP) with scaling. We show that the Donaldson-Futaki invariant is always non-increasing along the process. If $\\rho(X)=1$, then the end product is a test configuration with the central fibre being an irreducible normal $\\mathbb{Q}$-Fano variety. This implies that, when $X$ is Fano with $\\rho(X)=1$, to test $K$-(semi)stability, we only need to test on the special test configurations. We also show by a counter-example that the `right' definition of $K$-(poly)stability should only involve normal test configurations.

Li, Chi

2011-01-01T23:59:59.000Z

144

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

U.S. Energy Information Administration (EIA) Indexed Site

Network Configuration & System Design Network Configuration & System Design About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Network Configuration and System Design Overview | Transmission/Storage | Design Criteria | Importance of Storage| Overall Pipeline System Configuration Overview A principal requirement of the natural gas transmission system is that it be capable of meeting the peak demand of its shippers who have contracts for firm service. To meet this requirement, the facilities developed by the natural gas transmission industry are a combination of transmission pipelines to bring the gas to the market areas and of underground natural gas storage sites and liquefied natural gas (LNG) peaking facilities located in the market areas.

145

CRAD, Configuration Management Assessment Plan | Department of Energy  

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

Configuration Management Assessment Plan Configuration Management Assessment Plan CRAD, Configuration Management Assessment Plan Performance Objective: The objective of this assessment is to determine whether a Configuration Management Program (CM) is in place which allows for the availability and retrievability of accurate information, improves response to design and operational decisions, enhances worker safety, increases facility safety and reliability, increases efficiency of work efforts, and helps maintain integrity of interfacing orders. Criteria: The CM program supports DOE program implementation through the following: It provides the mechanisms for identifying, cataloging, and maintaining the design requirements and design basis (established to satisfy DOE O 420.1 Facility Safety). It carries forward the technical baseline established in the design

146

Exhibit A: Modeling in Support of Two Unit Operating Configurations |  

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

Modeling in Support of Two Unit Operating Configurations Modeling in Support of Two Unit Operating Configurations Exhibit A: Modeling in Support of Two Unit Operating Configurations Docket No. EO-05-01: Tables showing modeling of emissions from units of the Mirant Potomac Power Plant. Exhibit A: Modeling in Support of Two Unit Operating Configurations More Documents & Publications Comments on Emergency Order to Resume Limited Operation at the Potomac River Generating Station, Alexandria, VA from the Chesapeake Climate Action Network. Comments on Department of Energy's Emergency Order To Resume Limited Operation at Mirant's Potomac River Generating Station and Proposed Mirant Compliance Plan Answer of Potomac Electric Power Company and PJM lnterconnection, L.L.C. to the October 6, 2005 motion filed by the Virginia Department of

147

Configuring Client PCs for use with Project Assessment and Reporting...  

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

to it, you may follow these directions yourself. 1.2 Installation of ActiveX Control WINDOWS XP 1. Log onto the workstation to be configured using an IDPassword that can perform...

148

The simol modeling language for simulation and (re-)configuration  

Science Conference Proceedings (OSTI)

From automotive and up to telecommunication industry, configuration and simulation are used for solving complex problems connected to the ever growing number of components, which have to work together. To assist these needs, many tools are nowadays available. ...

Iulia Nica; Franz Wotawa

2012-01-01T23:59:59.000Z

149

High temperature solid electrolyte fuel cell configurations and interconnections  

DOE Patents (OSTI)

High temperature fuel cell configurations and interconnections are made including annular cells having a solid electrolyte sandwiched between thin film electrodes. The cells are electrically interconnected along an elongated axial outer surface.

Isenberg, Arnold O. (Forest Hills, PA)

1984-01-01T23:59:59.000Z

150

A Highly Configurable Vortex Initialization Method for Tropical Cyclones  

Science Conference Proceedings (OSTI)

A highly configurable vortex initialization methodology has been constructed in order to permit manipulation of the initial vortex structure in numerical models of tropical cyclones. By using distinct specifications of the flow in the boundary ...

Eric D. Rappin; David S. Nolan; Sharanya J. Majumdar

151

Constrained Density-Functional Theory--Configuration Interaction  

E-Print Network (OSTI)

In this thesis, I implemented a method for performing electronic structure calculations, "Constrained Density Functional Theory-- Configuration Interaction" (CDFT-CI), which builds upon the computational strengths of Density ...

Kaduk, Benjamin James

2012-01-01T23:59:59.000Z

152

Configuring Networks and Devices with Simple Network Management Protocol (SNMP)  

Science Conference Proceedings (OSTI)

This document is written for readers interested in the Internet Standard Management Framework and its protocol, the Simple Network Management Protocol (SNMP). In particular, it offers guidance in the effective use of SNMP for configuration management. ...

M. MacFaden; D. Partain; J. Saperia; W. Tackabury

2003-04-01T23:59:59.000Z

153

A Highly Configurable Vortex Initialization Method for Tropical Cyclones  

Science Conference Proceedings (OSTI)

A highly configurable vortex initialization methodology has been constructed in order to permit manipulation of the initial vortex structure in numerical models of tropical cyclones. By using distinct specifications of the flow in the boundary ...

Eric D. Rappin; David S. Nolan; Sharanya J. Majumdar

2013-10-01T23:59:59.000Z

154

In-line phase-contrast imaging of a biological specimen using a compact laser-Compton scattering-based x-ray source  

SciTech Connect

Laser-Compton scattering (LCS) x-ray sources have recently attracted much attention for their potential use at local medical facilities because they can produce ultrashort pulsed, high-brilliance, and quasimonochromatic hard x rays with a small source size. The feasibility of in-line phase-contrast imaging for a 'thick' biological specimens of rat lumbar vertebrae using the developed compact LCS-X in AIST was investigated for the promotion of clinical imaging. In the higher-quality images, anatomical details of the spinous processes of the vertebrae are more clearly observable than with conventional absorption radiography. The results demonstrate that phase-contrast radiography can be performed using LCS-X.

Ikeura-Sekiguchi, H.; Kuroda, R.; Yasumoto, M.; Toyokawa, H.; Koike, M.; Yamada, K. [National Institute of Advanced Industrial Science and Technology (AIST), Central 2-5, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan); Sakai, F. [Sumitomo Heavy Industries, Ltd. (SHI), 2-1-1, Yatocho, Nishitokyo, Tokyo 188-8585 (Japan); Mori, K.; Maruyama, K. [Ibaraki Prefectural University of Health Sciences, 4669-2, Ami, Inashiki, Ibaraki 300-0394 (Japan); Oka, H.; Kimata, T. [St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki City 216-8512 (Japan)

2008-03-31T23:59:59.000Z

155

Configuration management program plan for Hanford site systems engineering  

SciTech Connect

This plan establishes the integrated configuration management program for the evolving technical baseline developed through the systems engineering process. This configuration management program aligns with the criteria identified in the DOE Standard, DOE-STD-1073-93. Included are specific requirements for control of the systems engineering RDD-100 database, and electronic data incorporated in the database that establishes the Hanford site technical baseline.

Hoffman, A.G.

1994-11-14T23:59:59.000Z

156

A DYNAMICALLY CONFIGURABLE ENVIRONMENT FOR HIGH Performance Computing  

E-Print Network (OSTI)

Current tools available for high performance computing require that all the computing nodes used in a parallel execution be known in advance: the execution environment must know where the different "chunks" of programs will be executed, and each computer involved in the execution must be properly configured. In this paper, we describe how the ) environment may be used to dynamically locate available computers to perform such computations and how these computers are dynamically configured.

Nabil Abdennadher; Gilbert Babin; Peter Kropf; Gilbert Babin ; Peter Kropf ; Pierre Kuonen

2000-01-01T23:59:59.000Z

157

The Quantum Configuration Space of Loop Quantum Cosmology  

E-Print Network (OSTI)

The article gives an account of several aspects of the space known as the Bohr compactification of the line, featuring as the quantum configuration space in loop quantum cosmology, as well as of the corresponding configuration space realization of the so-called polymer representation. Analogies with loop quantum gravity are explored, providing an introduction to (part of) the mathematical structure of loop quantum gravity, in a technically simpler context.

J. M. Velhinho

2007-04-18T23:59:59.000Z

158

Comparison of Ultrasonic Examination Detection Capabilities of Safe-end Joint Configuration to Other Reactor Coolant Loop Joint Configurations  

Science Conference Proceedings (OSTI)

The purpose of this document is to compare the ultrasonic examination detection capabilities of the RPV outlet nozzle-to-safe end-to-cast pipe joint configuration to other reactor coolant loop (RCL) cast stainless steel (CSS) configurations. The comparison presented is based on results obtained from the 1988 Wolf Creek and 1993 Northeast/Yankee Atomic CSS workshops. Both workshops utilized CSS specimens from the Westinghouse Owners Group (WOG) set as well as other specimens.

1998-02-03T23:59:59.000Z

159

Design and economics of a lignite-to-SNG (substitute natural gas) facility using Lurgi gasifiers with in-line conversion of by-product liquids to methane. Topical report (Final), December 1985-November 1986  

SciTech Connect

A first-pass conceptual design and screening cost estimate was prepared for a hypothetical plant to convert lignite to methane using Lurgi dry-bottom gasifiers and employing a black box reactor to convert by-product liquids in the gas phase to methane. Results were compared to those from conventional and modified Lurgi-plant designs. The in-line conversion plant can potentially reduce the cost of gas from a Lurgi plant by about 20%. Due to reduced capital investment, over $200 million could be invested in the reactor before the cost of gas from the in-line conversion plant is as high as that of a Lurgi plant.

Smelser, S.C.

1986-11-01T23:59:59.000Z

160

Configuration of Hopper, NERSC's Cray XE6 System  

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

Configuration Configuration Configuration Hopper is NERSC's first peta-flop system, a Cray XE6, with a peak performance of 1.28 Petaflops/sec, 153,216 compute cores for running scientific applications, 217 Terabytes of memory, and 2 Petabytes of online disk storage. MC-proc.png Compute Nodes Hopper has 6,384 compute nodes made up of 2 twelve-core AMD 'MagnyCours'. Read More » login.jpg Login Nodes When you ssh to hopper.nersc.gov, you are connecting to a "login node." Read More » jaguar xt4 Interconnect A description of the custom Cray-designed network that Hopper uses for inter-node communication. Read More » xe6blade.png Support Nodes A description of other kinds of nodes included in Hopper for job launch, file systems, networking, and other services. Read More »

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


161

CRAD, Configuration Management - Oak Ridge National Laboratory High Flux  

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

Oak Ridge National Laboratory High Oak Ridge National Laboratory High Flux Isotope Reactor Contractor ORR CRAD, Configuration Management - Oak Ridge National Laboratory High Flux Isotope Reactor Contractor ORR February 2007, 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 Managment Program portion of an Operational Readiness Review of the Oak Ridge National Laboratory, High Flux Isotope Reactor. CRADs provide a recommended approach and the types of information to gather to assess elements of a DOE contractor's programs. CRAD, Configuration Management - Oak Ridge National Laboratory High Flux

162

T-596: 0-Day Windows Network Interception Configuration Vulnerability |  

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

6: 0-Day Windows Network Interception Configuration 6: 0-Day Windows Network Interception Configuration Vulnerability T-596: 0-Day Windows Network Interception Configuration Vulnerability April 6, 2011 - 5:48am Addthis PROBLEM: 0-Day exploit of IPv4 and IPv6 mechanics and how it applies to Microsoft Windows Operating systems. PLATFORM: Microsoft Operating Systems (OS) Windows Vista, Windows 7, and Windows 2008 Server ABSTRACT: The links below describe a parasitic IPv6 layered over a native IPv4 network. This attack can be used to stage potential man-in-the-middle (MITM) attacks on IPv4 traffic. Please see the "Other Links" section below, as it provides an external URL reference. reference LINKS: InfoSec Institute - SLAAC Attack Cisco Threat Comparison and Best-Practice White Paper IMPACT ASSESSMENT: High

163

Hydrodynamics of undulatory fish schooling in lateral configurations  

E-Print Network (OSTI)

The thrust benefits of lateral configurations of two-dimensional undulating fish-like bodies are investigated using high-fidelity numerical simulation. The solution of the Navier--Stokes equations is carried out with a viscous vortex particle method. Configurations of tethered pairs of fish arranged side by side are studied by varying the lateral separation distance and relative phase difference. It is shown that, in mirroring symmetry, the fish in the pair augment each other's thrust even at relatively large separations (up to ten body lengths). At small distances, this augmentation is primarily brought about by a peristaltic pumping in the gap between the fish, whereas at larger distances, the thrust is affected by subtle changes in the vortex shedding at the tail due to interactions with the other fish. In cases without symmetric undulation, one fish always draws more benefit from the interaction than the other. Finally, lateral configurations with three fish are studied with mirroring symmetry between nei...

Zhang, Li Jeany

2010-01-01T23:59:59.000Z

164

Method for making precisely configured flakes useful in optical devices  

DOE Patents (OSTI)

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.

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

2007-07-03T23:59:59.000Z

165

Final Land Configuration for the Rocky Flats Environmental Technology Site  

SciTech Connect

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)

Stegen, R. L.; Kapinos, J. M.; Wehner, J. P.; Snyder, B. [Parsons, 1700 Broadway, Suite 900, Denver, Colorado 80290 (United States); Davis, R. W. [Kaiser-Hill Company, LLC, 9193 S. Jamaica, Englewood, Colorado 80112 (United States)

2006-07-01T23:59:59.000Z

166

EVALUATION OF SALTSTONE MIXER PADDLE CONFIGURATION FOR IMPROVED WEAR RESISTANCE  

SciTech Connect

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.

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

2012-09-27T23:59:59.000Z

167

A one-shot configurable-cache tuner for improved energy and performance  

Science Conference Proceedings (OSTI)

We introduce a new non-intrusive on-chip cache-tuning hardware module capable of accurately predicting the best configuration of a configurable cache for an executing application. Previous dynamic cache tuning approaches change the cache configuration ...

Ann Gordon-Ross; Pablo Viana; Frank Vahid; Walid Najjar; Edna Barros

2007-04-01T23:59:59.000Z

168

Preconceptual ABC design definition and system configuration layout  

SciTech Connect

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.

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

1995-03-01T23:59:59.000Z

169

Using image schemata to represent meaningful spatial configurations  

Science Conference Proceedings (OSTI)

Spatial configurations have a meaning to humans. For example, if I am standing on a square in front of a building, and this building has a door, then this means to me that this door leads into the building. This type of meaning can be nicely captured ...

Urs-Jakob Retschi; Sabine Timpf

2005-10-01T23:59:59.000Z

170

Composite spherically symmetric configurations in Jordan-Brans-Dicke theory  

E-Print Network (OSTI)

In this article, a study of the scalar field shells in relativistic spherically symmetric configurations has been performed. We construct the composite solution of Jordan-Brans-Dicke field equation by matching the conformal Brans solutions at each junction surfaces. This approach allows us to associate rigorously with all solutions as a single glued "space", which is a unique differentiable manifold M^4.

S. Kozyrev

2010-09-23T23:59:59.000Z

171

Design of Coal Mine Monitoring and Controlling Configuration Software  

Science Conference Proceedings (OSTI)

Because of the limit of the domestic configuration software which is in the use of scrutinizing the coal mine, the ActiveX technique is discussed and the design of the safety of coal mine, which utilize the ActiveX technique, is actualized. The fig of ... Keywords: ActiveX, the safety surveillance, the database

An Weipeng; Li Miao

2010-10-01T23:59:59.000Z

172

A Mirnov loop array for field-reversed configurations  

SciTech Connect

An array of 64 magnetic pick-up loops has been used for stability studies of large field-reversed configurations in the FRX-C/LSM device. This array proved reliable, could resolve signals of a few Gauss, and allowed the detection of several plasma instabilities. 3 refs., 4 figs.

Tuszewski, M.

1990-01-01T23:59:59.000Z

173

Ensuring correctness during process configuration via partner synthesis  

Science Conference Proceedings (OSTI)

Variants of the same process can be encountered within one organization or across different organizations. For example, different municipalities, courts, and rental agencies all need to support highly similar processes. In fact, procurement and sales ... Keywords: C-YAWL, Configurable process model, Operating guideline, Petri net

Wil M. P. van der Aalst; Niels Lohmann; Marcello La Rosa

2012-09-01T23:59:59.000Z

174

Self-configuring localization systems: Design and Experimental Evaluation  

Science Conference Proceedings (OSTI)

Embedded networked sensors promise to revolutionize the way we interact with our physical environment and require scalable, ad hoc deployable and energy-efficient node localization/positioning.This paper describes the motivation, design, implementation, ... Keywords: Location, localization, self-configuration, sensor networks

Nirupama Bulusu; John Heidemann; Deborah Estrin; Tommy Tran

2004-02-01T23:59:59.000Z

175

Research on IPv6 address configuration for wireless sensor networks  

Science Conference Proceedings (OSTI)

The paper proposes an IPv6 address configuration scheme for wireless sensor networks. In the scheme, one wireless sensor network is divided into multiple clusters and the scheme creates the IPv6 address formats for the cluster heads and the cluster members ...

Xiaonan Wang; Demin Gao

2010-11-01T23:59:59.000Z

176

Theorizing HR Intranets: Contextual, Strategic and Configurative Explanations  

Science Conference Proceedings (OSTI)

This paper presents the results of a longitudinal exploratory survey based on a sample of French firms. Different contexts of Intranet, as well as introduction, development stages, performance and Intranet content are presented. Three approaches are ... Keywords: Configurative Approach, Corporate Intranet, HR Intranet, Longitudinal Survey, Specialized Intranet, Strategic Alignment, Technological Infusion

Vronique Guilloux; Florence Laval; Michel Kalika

2010-07-01T23:59:59.000Z

177

Analysis of Natural Gas Fuel Cell Plant Configurations  

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

Analysis of Natur Analysis of Natur al Gas Fuel Cell Plant Configur ations March 24, 2011 DOE/NETL-2011/1486 Analysis of Natur al Gas Fuel Cell Plant Configur ations Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement,

178

A Xylophone Configuration for a third Generation Gravitational Wave Detector  

E-Print Network (OSTI)

Achieving the demanding sensitivity and bandwidth, envisaged for third generation gravitational wave (GW) observatories, is extremely challenging with a single broadband interferometer. Very high optical powers (Megawatts) are required to reduce the quantum noise contribution at high frequencies, while the interferometer mirrors have to be cooled to cryogenic temperatures in order to reduce thermal noise sources at low frequencies. To resolve this potential conflict of cryogenic test masses with high thermal load, we present a conceptual design for a 2-band xylophone configuration for a third generation GW observatory, composed of a high-power, high-frequency interferometer and a cryogenic low-power, low-frequency instrument. Featuring inspiral ranges of 3200Mpc and 38000Mpc for binary neutron stars and binary black holes coalesences, respectively, we find that the potential sensitivity of xylophone configurations can be significantly wider and better than what is possible in a single broadband interferometer.

Stefan Hild; Simon Chelkowski; Andreas Freise; Janyce Franc; Nazario Morgado; Raffaele Flaminio; Riccardo DeSalvo

2009-06-15T23:59:59.000Z

179

Stretched two-nucleon configurations in [sup 210]Pb  

Science Conference Proceedings (OSTI)

The [sup 208]Pb([alpha],[sup 2]He)[sup 210]Pb reaction has been investigated at about 55 MeV incident energy. The angular distributions of prominent transitions were analyzed with the distorted-wave Born approximation. At low excitation energies, states built on 2[ital g][sub 9/2] single-particle strength are found, while at higher energies configurations including 1[ital j][sub 15/2] strength dominate. Together with the predictions of the crude shell model the main configurations of most observed transitions were identified. The results are compared to shell-model calculations with the Kuo-Herling residual interaction modified by Warburton and Brown.

von Neumann-Cosel, P.; Schenk, P.; Fister, U.; Trelle, T.K.; Jahn, R. (Institut fuer Kernphysik, Technische Hochschule Darmstadt, DW-6100 Darmstadt (Germany) Institut fuer Strahlen- und Kernphysik, Universitaet Bonn, DW-5300 Bonn (Germany))

1993-03-01T23:59:59.000Z

180

Switching surge test results ehv substation bus configurations  

SciTech Connect

The industry has been actively engaged in, and has presented many results of, ehv switching surge test programs associated with transmission line designs. It would seem equally important that similar efforts be staged relative to ehv switching surge capabilities of the terminal equipment as it would normally be found in its variety of configurations. Toward this end, a series of switching surge test programs on a number of substation bus configurations was conducted. Particular emphasis was placed on the determination of switching surge characteristics of the air gaps found in ehv substation bus designs. The test data are presented with pertinent data evaluations in an attempt to provide a more refined basis for the application of final judgments to bus designs for 345, 500, and 750 kV substations.

Hertig, G.E.; Kelly, W.B.

1966-08-01T23:59:59.000Z

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


181

Configuration Of Wrtsil Diesel Power Plant's Fuel System  

E-Print Network (OSTI)

The trend in modern production is to produce more tailored products with less design effort. Automation of design process is a modern way to increase effectiveness of the order/delivery process. This paper describes a methodology for configuration design of one-of-a-kind products. This methodology has been implemented with the cooperation of knowledge-based engineering software, an object-oriented database management system and, a CAD system. The methodology has been applied to two industrial test cases. This paper describes the application of the methodology in the configuration of diesel power plants' fuel systems. The experiences gained from the test cases show that knowledge automation can be realized with the efficient co-operation of the different tools. INHALTSANGABE Der Trend in der modernen Fertigung ist, mehr mageschneiderte Produkte mit weniger Design Aufwand herzustellen. Die Automatisierung des Konstruktionsprozesses ist ein modernes Mittel, die Effektivitt des Bestell- ...

Anne Aaltonen; Pasi Paasiala; Kari Tanskanen; M. Sc; M. Sc; M. Sc; Asko Riitahuhta

1995-01-01T23:59:59.000Z

182

Compact toroid experiments: spheromaks and field-reversed configurations  

SciTech Connect

Compact toroids (CT) containing both poloidal and toroidal magnetic field spheromaks, are generated in the CTX experiment using a magnetized coaxial plasma gun, and are trapped and stably confined in an oblate flux conserver. Total configuration lifetimes are observed up to approx. 0.8 ms, consistent with classical resistive decay. The field reversed configuration (FRC) is a high beta, axisymmetric, highly prolate compact toroid, containing only poloidal magnetic field, formed in a field-reversed theta pinch. A quiescent confinement period of 30 to 90 ..mu..s with T/sub i/ approx. 200 to 500 eV and n approx. 5 x 10/sup 15/ cm/sup -3/ is terminated by an n = 2 rotational instability. The FRC is stable to MHD modes including the tilting instability.

Quinn, W.E.

1982-01-01T23:59:59.000Z

183

Plasma-Neutrals Simulation of Linear Configurations for PSI  

SciTech Connect

Coupled fluid plasma and kinetic Monte Carlo neutrals simulations in a linear configuration are reported. The configuration mimics the tokamak divertor plasma channel contacting a target surface with nearby wall. We calculate the parameters of the source plasmas, 3-5m from the target, required to produce high recycling target plasmas recently simulated for ITER. It is shown that the source plasma needs to deliver heat fluxes of 10-20MW/m2, ion fluxes of 1023/m2/s, densities of 2-6x1019/m3, and electron and ion temperatures of 15-30eV over a plasma radius of 5-6cm. The neutral H and H2 fluxes to the vessel wall are calculated to be comparable to those measured in the divertor regions of today s tokamaks. These results identify some design features for a prospective plasma material test station and the research required for this plasma source.

Peng, Yueng Kay Martin [ORNL; Owen, Larry W [ORNL; Rapp, Juergen [ORNL; Bonnin, X. [CNRS-LIMHP, Universite, Paris; Canik, John [ORNL

2013-01-01T23:59:59.000Z

184

Deep Trek Re-configurable Processor for Data Acquisition (RPDA)  

Science Conference Proceedings (OSTI)

This report summarizes technical progress achieved during the cooperative research agreement between Honeywell and U.S. Department of Energy to develop a high-temperature Re-configurable Processor for Data Acquisition (RPDA). The RPDA development has incorporated multiple high-temperature (225C) electronic components within a compact co-fired ceramic Multi-Chip-Module (MCM) package. This assembly is suitable for use in down-hole oil and gas applications. The RPDA module is programmable to support a wide range of functionality. Specifically this project has demonstrated functional integrity of the RPDA package and internal components, as well as functional integrity of the RPDA configured to operate as a Multi-Channel Data Acquisition Controller. This report reviews the design considerations, electrical hardware design, MCM package design, considerations for manufacturing assembly, test and screening, and results from prototype assembly and characterization testing.

Bruce Ohme; Michael Johnson

2009-06-30T23:59:59.000Z

185

Boundary Conditions for Three-Body Scattering in Configuration Space  

E-Print Network (OSTI)

The asymptotic behavior of three-body scattering wave functions in configuration space is studied by considering a model equation that has the same asymptotic form as the Faddeev equations. Boundary conditions for the wave function are derived, and their validity is verified by numerical calculations. It is shown that these boundary conditions for the partial differential equation can be used to obtain accurate numerical solutions for the wave function.

G. L. Payne; W. Gloeckle; J. L. Friar

1999-08-18T23:59:59.000Z

186

System Configured For Applying Multiple Modifying Agents To A Substrate.  

DOE Patents (OSTI)

The present invention is related to the modifying of substrates with multiple modifying agents in a single continuous system. At least two processing chambers are configured for modifying the substrate in a continuous feed system. The processing chambers can be substantially isolated from one another by interstitial seals. Additionally, the two processing chambers can be substantially isolated from the surrounding atmosphere by end seals. Optionally, expansion chambers can be used to separate the seals from the processing chambers.

Propp, W. Alan (Idaho Falls, ID); Argyle, Mark D. (Idaho Falls, ID); Janikowski, Stuart K. (Idaho Falls, ID); Fox, Robert V. (Idaho Falls, ID); Toth, William J. (Idaho Falls, ID); Ginosar, Daniel M. (Idaho Falls, ID); Allen, Charles A. (Idaho Falls, ID); Miller, David L. (Idaho Falls, ID)

2005-11-08T23:59:59.000Z

187

Component configuration control system development at EBR-II  

SciTech Connect

One ofthe major programs being pursued by the EBR-II Division of Argonne National Laboratory is to improve the reliability of plant control and protection systems. This effort involves looking closely at the present state of the art and needs associated with plant diagnostic, control and protection systems. One of the areas of development at EBR-II involves a component configuration control system (CCCS). This system is a computerized control and planning aid for the nuclear power operator.

Monson, L.R.; Stratton, R.C.

1984-01-01T23:59:59.000Z

188

A directory service for configuring high-performance distributed computations  

Science Conference Proceedings (OSTI)

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.

Fitzgerald, S.; Kesselman, C. [Univ. of Southern California, Marina del Rey, CA (United States). Information Sciences Institute; Foster, I. [Argonne National Lab., IL (United States)] [and others

1997-08-01T23:59:59.000Z

189

Evaluating the Potential of Commercial GIS for Accelerator Configuration Management  

SciTech Connect

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.

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

2005-10-10T23:59:59.000Z

190

Evaluating the Potential of Commercial GIS for Accelerator Configuration Management  

SciTech Connect

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.

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

2005-10-10T23:59:59.000Z

191

Software configuration management plan for the Hanford site technical database  

Science Conference Proceedings (OSTI)

The Hanford Site Technical Database (HSTD) is used as the repository/source for the technical requirements baseline and programmatic data input via the Hanford Site and major Hanford Project Systems Engineering (SE) activities. The Hanford Site SE effort has created an integrated technical baseline for the Hanford Site that supports SE processes at the Site and project levels which is captured in the HSTD. The HSTD has been implemented in Ascent Logic Corporation (ALC) Commercial Off-The-Shelf (COTS) package referred to as the Requirements Driven Design (RDD) software. This Software Configuration Management Plan (SCMP) provides a process and means to control and manage software upgrades to the HSTD system.

GRAVES, N.J.

1999-05-10T23:59:59.000Z

192

Novel reactor configuration for synthesis gas conversion to alcohols  

SciTech Connect

Research continued on the conversion of synthesis gas to alcohols and reactor configuration. Objectives for this quarter: the project stated on October 1, 1989 and according to the Task Schedule provided in the original work breakdown schedule, Task I was to be completed in the first quarter and Task II to be started. Task I consisted of construction of the slurry reactor set-up to be used in Task IV for determination of the reactor kinetics and procurement of the parts for automation equipment, separators, computer activated parts etc. for automation of the trickle bed rector and GC equipment. Task II consisted of standardization and automation of GC analysis protocols. 1 fig.

Akgerman, A.; Anthony, R.G. (Texas A and M Univ., College Station, TX (USA). Dept. of Chemical Engineering)

1989-01-01T23:59:59.000Z

193

Stability of magnetic configurations containing the toroidal and axial fields  

E-Print Network (OSTI)

Stability properties of magnetic-field configurations containing the toroidal and axial field are considered. The stability is treated by making use of linear analysis. It is shown that the conditions required for the onset of instability are essentially different from those given by the necessary condition $d (s B_{\\phi})/ds > 0$, where $s$ is the cylindrical radius. The growth rate of instability is calculated for a wide range of the parameters. We argue that the instability can operate in two different regimes depending on the strength of the axial field and the profile of the toroidal field.

Bonanno, Alfio

2007-01-01T23:59:59.000Z

194

Wideband silicon bolometers'' on the LSX field reversed configuration experiment  

Science Conference Proceedings (OSTI)

Silicon photodiode detectors, which have nearly flat energy response from 1 eV to 6 keV (R. Korde and L. Randall Canfield, Proc. SPIE {bold 1140}, 126 (1989)), were used as bolometers in the field reversed theta pinch experiment LSX. Plasma escaping from the field reversed configuration is naturally diverted to the ends of the vacuum enclosure. There it affects the bolometer measurements either by direct energy deposition or by emission of low energy photons. These two particle effects can be avoided by optimizing the location of the bolometers and restricting their field of view. Good agreement is observed between the silicon bolometers and a gold foil calorimeter.

Maqueda, R.J.; Wurden, G.A. (Aerospace and Energetics Research Program, FL-10, University of Washington, Seattle, Washington 98195 (United States)); Crawford, E.A. (STI Optronics, 2755 Northup Way, Bellevue, Washington 98004 (United States))

1992-10-01T23:59:59.000Z

195

Mac configuration management at the Los Alamos National Laboratory  

SciTech Connect

The Los Alamos National Laboratory (LANL) had a need for central configuration management of non-Windows computers. LANL has three to five thousand Macs and an equal number of Linux based systems. The primary goal was to be able to inventory all non-windows systems and patch Mc OS X systems. LANL examined a number of commercial and open source solutions and ultimately selected Puppet. This paper will discuss why we chose Puppet, how we implemented it, and some lessons we learned along the way.

Marcus, Allan B [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

196

Shaft Siting and Configuration for Flexible Operating Mode  

SciTech Connect

The purpose of this document as stated in the ''Technical Work Plan for Subsurface Design Section FY 01 Work Activities'' (CRWMS M&O 2001a, pg. 14) is to review and evaluate the most current concepts for shaft siting and configuration. The locations of the shaft sites will be evaluated in reference to the overall subsurface ventilation layout shown in Figure 1. The scope will include discussions on pad size requirements, shaft construction components such as collars, shaft stations, sumps, ground support and linings, head frames, fan ducting and facility equipping. In addition to these, shaft excavation methodologies and integration with the overall subsurface construction schedule will be described. The Technical Work Plan (TWP), (CRWMS M&O 2001a), for this document has been prepared in accordance with AP-2.21Q, ''Quality Determinations and Planning for Scientific, Engineering and Regulatory Compliance Activities''. This document will be prepared in accordance with AP-3.10Q, ''Analysis and Models''. This document contributes to Site Recommendation (SR). The intended use of this document is to provide an analysis for shaft siting and configuration criteria for subsequent construction. This document identifies preliminary design concepts that should not be used for procurement, fabrication, or construction.

Robert Boutin

2001-08-02T23:59:59.000Z

197

Snowflake divertor configuration studies for NSTX-Upgrade  

SciTech Connect

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.

Soukhanovskii, V A

2011-11-12T23:59:59.000Z

198

Cooling Configuration Design Considerations for Long-Length HTS Cables  

SciTech Connect

Recent successes in demonstrating high temperature superconducting (HTS) cable systems hundreds of meters in length have inspired even longer length projects. A compact and energy efficient cooling configuration can be achieved using a counterflow-cooling arrangement. This is particularly attractive when all three phases are contained in a single cryostat because of the elimination of the space and thermal requirements of a separate liquid nitrogen return line. Future cable projects will utilize second generation (2G) wire which is expected to become lower in cost but may have different thermal requirements than first generation (1G) BSCCO wire due to the lower critical temperature and to a lesser extent, the lower thermal conductivity of the wire. HTS cable configurations will be studied with a numerical model to assess thermal hydraulic performance with AC and thermal losses; a summary of the results from the analysis will be presented. An analysis of the cable thermal- hydraulic response to over-current faults will be presented.

Demko, Jonathan A [ORNL; Duckworth, Robert C [ORNL

2009-01-01T23:59:59.000Z

199

QUASI-STEADY CONFIGURATIONS OF CONDUCTIVE INTRACLUSTER MEDIA  

SciTech Connect

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.

Voit, G. M., E-mail: voit@pa.msu.edu [Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)

2011-10-10T23:59:59.000Z

200

Complete SE[superscript 3] underwater robot control with arbitrary thruster configurations  

E-Print Network (OSTI)

e present a control algorithm for autonomous underwater robots with modular thruster configuration. The algorithm can handle arbitrary thruster configurations. It maintains the robot's desired attitude while solving for ...

Doniec, Marek Wojciech

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


201

Nail-it-down: nailing and fixing configuration faults in cloud environments  

Science Conference Proceedings (OSTI)

Faults due to configuration of resources account for majority of errors in distributed software systems. Yet, the problem of identifying faulty configuration remains at large. Current approaches for fault identification are focused on event correlation ...

Kalapriya Kannan; Anuradha Bhamidipaty

2013-05-01T23:59:59.000Z

202

A Software Configuration Management System for the Maintenance of Nuclear Power Plant Simulators  

Science Conference Proceedings (OSTI)

This paper reports on the KSG experiencies to introduce a configuration management system for the maintenance of nuclear power plant simulator software. After a discussion on the KSG specific requirements on a computer based software configuration management ...

Burkhard Holl

1997-03-01T23:59:59.000Z

203

Configuration Management Plan for Tank Farm Restoration and Safe Operations Project W-314  

Science Conference Proceedings (OSTI)

The Configuration Management Plan for Project W-314 describes the systems, processes and procedures for implementation of applicable configuration management practices described in HNF-0842, Volume 111, Section 3.1, ''Configuration Management Implementation''. This plan is tailored specifically for use by Project W-314.

MCGREW, D.L.

2000-04-19T23:59:59.000Z

204

SPLat: lightweight dynamic analysis for reducing combinatorics in testing configurable systems  

Science Conference Proceedings (OSTI)

Many programs can be configured through dynamic and/or static selection of configuration variables. A software product line (SPL), for example, specifies a family of programs where each program is defined by a unique combination of features. Systematically ... Keywords: Automated testing, Configurable Systems, Efficiency, Software Product Lines

Chang Hwan Peter Kim; Darko Marinov; Sarfraz Khurshid; Don Batory; Sabrina Souto; Paulo Barros; Marcelo D'Amorim

2013-08-01T23:59:59.000Z

205

A three-phase integrated model for product configuration change problems  

Science Conference Proceedings (OSTI)

Requirements of engineers or customers may result in product configuration change with product life cycle; effective management of product configuration can actually enhance productivity and customer satisfaction. This study aims to develop a three-phase ... Keywords: Fuzzy theory, Genetic algorithm, Product configuration change, Value engineering

H. S. Wang; Z. H. Che; M. J. Wang

2009-04-01T23:59:59.000Z

206

The Toyota.de Car Configurator Hermann Hofstetter, Christian Harr, Elmedin Dedovic  

E-Print Network (OSTI)

The Toyota.de Car Configurator Hermann Hofstetter, Christian Harr, Elmedin Dedovic Human configurator on the Toyota Germany homepage has been analyzed and modified to better suit users' needs, Thomas Memmel: Lecture slide - 01_Intro_visRE_WS0607.pdf #12;The Toyota.de Car Configurator 2

Reiterer, Harald

207

Reducing Turbulent Transport in Toroidal Configurations via Shaping  

Science Conference Proceedings (OSTI)

Recent progress in reducing turbulent transport in stellarators and tokamaks by 3D shaping using a stellarator optimization code in conjunction with a gyrokinetic code is presented. The original applications of the method focussed on ion temperature gradient transport in a quasi-axisymmetric stellarator design. Here, an examination of both other turbulence channels and other starting configurations is initiated. It is found that the designs evolved for transport from ion temperature gradient turbulence also display reduced transport from other transport channels whose modes are also stabilized by improved curvature, such as electron temperature gradient and ballooning modes. The optimizer is also applied to evolving from a tokamak, finding appreciable turbulence reduction for these devices as well. From these studies, improved understanding is obtained of why the deformations found by the optimizer are beneficial, and these deformations are related to earlier theoretical work in both stellarators and tokamaks.

H.E. Mynick, N. Pomphrey and P. Xanthopoulos

2011-04-20T23:59:59.000Z

208

Ionization detector, electrode configuration and single polarity charge detection method  

DOE Patents (OSTI)

An ionization detector, an electrode configuration and a single polarity charge detection method each utilize a boundary electrode which symmetrically surrounds first and second central interlaced and symmetrical electrodes. All of the electrodes are held at a voltage potential of a first polarity type. The first central electrode is held at a higher potential than the second central or boundary electrodes. By forming the first and second central electrodes in a substantially interlaced and symmetrical pattern and forming the boundary electrode symmetrically about the first and second central electrodes, signals generated by charge carriers are substantially of equal strength with respect to both of the central electrodes. The only significant difference in measured signal strength occurs when the charge carriers move to within close proximity of the first central electrode and are received at the first central electrode. The measured signals are then subtracted and compared to quantitatively measure the magnitude of the charge.

He, Zhong (Ann Arbor, MI)

1998-01-01T23:59:59.000Z

209

Ionization detector, electrode configuration and single polarity charge detection method  

DOE Patents (OSTI)

An ionization detector, an electrode configuration and a single polarity charge detection method each utilize a boundary electrode which symmetrically surrounds first and second central interlaced and symmetrical electrodes. All of the electrodes are held at a voltage potential of a first polarity type. The first central electrode is held at a higher potential than the second central or boundary electrodes. By forming the first and second central electrodes in a substantially interlaced and symmetrical pattern and forming the boundary electrode symmetrically about the first and second central electrodes, signals generated by charge carriers are substantially of equal strength with respect to both of the central electrodes. The only significant difference in measured signal strength occurs when the charge carriers move to within close proximity of the first central electrode and are received at the first central electrode. The measured signals are then subtracted and compared to quantitatively measure the magnitude of the charge. 10 figs.

He, Z.

1998-07-07T23:59:59.000Z

210

THERMAL PERFORMANCE OF RADIOACTIVE MATERIAL PACKAGES IN TRANSPORT CONFIGURATION  

SciTech Connect

Drum type packages are routinely used to transport radioactive material (RAM) in the U.S. Department of Energy (DOE) complex. These packages are designed to meet the federal regulations described in 10 CFR Part 71. The packages are transported in specially designed vehicles like Safe Secure Transport (SST) for safety and security. In the transport vehicles, the packages are placed close to each other to maximize the number of units in the vehicle. Since the RAM contents in the packagings produce decay heat, it is important that they are spaced sufficiently apart to prevent overheating of the containment vessel (CV) seals and the impact limiter to ensure the structural integrity of the package. This paper presents a simple methodology to assess thermal performance of a typical 9975 packaging in a transport configuration.

Gupta, N.

2010-03-04T23:59:59.000Z

211

Impact of spectral transition zone in reference ENIGMA configuration.  

DOE Green Energy (OSTI)

The gas-cooled fast reactor (GFR) is one of six advanced nuclear energy systems being studied under the auspices of the Gen IV International Forum (GIF). In a bilateral International Nuclear Energy Research Initiative (I-NERI) project French and U.S. national laboratories, industry, and universities are collaborating on the development of the GFR. This effort is led by the ANL in the U.S. and the CEA in France. Some of the attractions of the GFR include: (1) Hard spectrum and core breeding ratio, BR {approx} 1. These features allow minimal waste production, improved transmutation capability, optimal and flexible use of natural resources, potentially better economy (because of use of higher power density relative to current thermal gas-cooled systems), and improved non-proliferation (no fertile blanket); (2) Temperature resistant fuel and structure elements that are favorable to tight fission product confinement and system operation at high temperature; (3) High temperature and transparent helium (He) gas coolant that allows a high thermodynamic conversion efficiency, other energy applications (e.g., hydrogen production), and ease of in-service inspection and repair; and (4) Possible direct energy conversion cycle leading to a simpler design, increased conversion efficiency, and lower investment costs. The French strategy for advanced systems includes the development of the GFR and sodium-cooled fast reactor (SFR) to levels that allow industries to be able to make an informed choice of the fast spectrum system that would provide a sustainable nuclear energy generation option for the future. Current planning calls for the construction of a small experimental research and technology development reactor (ETDR) around 2009 (first operation in 2015) at CEA-Cadarache, France. This would be followed by the construction of a GFR industrial prototype, around 2025. In support of the GFR development efforts, a new physics experimental program (called ENIGMA, Experimental Neutron Investigation of Gas-cooled reactor at Masurca) is being planned for Cadarache. This new experiment would provide better understanding of GFR neutronic features and will be the basis for the extension of current neutronics code validation domain (particularly, the ERANOS code system in France) to the analysis of GFRs. Experimental planning and decisions are ongoing for ENIGMA. One of the items that have been evaluated is the feasibility of obtaining different flux spectra in the ENIGMA reference configuration, giving the flexibility of simulating a large series of proposed gas-cooled fast systems with harder or softer spectra. In order to achieve this goal it was proposed to use a spectral transition zone in the center region of the ENIGMA core configuration. Another goal of the study is to evaluate the impact of the graphite cross-sections on the performance characteristics of the MASURCA configurations. The work was supported by ANL, through the residence of one of the authors at CEA-Cadarache in 2005. In this report, the impacts of the transition zone on the core physics parameters of the reference ENIGMA configuration are summarized.

Aliberti, G.; Palmiotti, G.; Taiwo, T. A.; Tommasi, J.

2005-10-05T23:59:59.000Z

212

Configuration and technology implications of potential nuclear hydrogen system applications.  

DOE Green Energy (OSTI)

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.

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

2005-11-05T23:59:59.000Z

213

Configuration and technology implications of potential nuclear hydrogen system applications.  

SciTech Connect

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.

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

2005-11-05T23:59:59.000Z

214

Configuration Data Management (CDM) on a Shoestring Identifying and Utilizing an Existing Configuration and Data Management Infrastructure  

Science Conference Proceedings (OSTI)

The spreading need for and use of configuration and data management (CDM) standards has highlighted a number of challenges to the companies that need to implement those standards. For companies and organizations that are new to CDM or have limited CDM capabilities, one of the major dilemmas faced is identifying how and where to start. In many cases there is a need to contend with a legacy of poorly identified items and information and an immature or non-existent CDM infrastructure (processes, procedures, people, and information systems). To the company management and CDM professional this poses a seemingly insurmountable task of putting in place a CDM infrastructure that provides the needed benefits while keeping within an acceptable cost and schedule. This paper deals with initially establishing the CDM infrastructure using the tools that a company already has available. The paper identifies features of common software applications that can be used to implement CDM principles.

VANN, J.M.

2000-09-25T23:59:59.000Z

215

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

SciTech Connect

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.

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

2001-01-01T23:59:59.000Z

216

Configuration and performance of fuel cell-combined cycle options  

DOE Green Energy (OSTI)

The natural gas, indirect-fired, carbonate fuel-cell-bottomed, combined cycle (NG-IFCFC) and the topping natural-gas/solid-oxide fuel-cell combined cycle (NG-SOFCCC) are introduced as novel power-plant systems for the distributed power and on-site markets in the 20-200 mega-watt (MW) size range. The novel NG-IFCFC power-plant system configures the ambient pressure molten-carbonate fuel cell (MCFC) with a gas turbine, air compressor, combustor, and ceramic heat exchanger: The topping solid-oxide fuel-cell (SOFC) combined cycle is not new. The purpose of combining a gas turbine with a fuel cell was to inject pressurized air into a high-pressure fuel cell and to reduce the size, and thereby, to reduce the cost of the fuel cell. Today, the SOFC remains pressurized, but excess chemical energy is combusted and the thermal energy is utilized by the Carnot cycle heat engine to complete the system. ASPEN performance results indicate efficiencies and heat rates for the NG-IFCFC or NG-SOFCCC are better than conventional fuel cell or gas turbine steam-bottomed cycles, but with smaller and less expensive components. Fuel cell and gas turbine systems should not be viewed as competitors, but as an opportunity to expand to markets where neither gas turbines nor fuel cells alone would be commercially viable. Non-attainment areas are the most likely markets.

Rath, L.K.; Le, P.H.; Sudhoff, F.A.

1995-12-31T23:59:59.000Z

217

Touring DNS Open Houses for Trends and Configurations  

Science Conference Proceedings (OSTI)

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.

Kalafut, Prof. Andrew [Grand Valley State University (GVSU), Michigan; Shue, Craig A [ORNL; Gupta, Prof. Minaxi [Indiana University

2011-01-01T23:59:59.000Z

218

Stationary Nonaxisymmetric Configurations of Magnetized Singular Isothermal Disks  

E-Print Network (OSTI)

Accepted.... Received...; in original form... We construct both aligned and unaligned (logarithmic spiral) stationary configurations of nonaxisymmetric magnetohydrodynamic (MHD) disks from either a full or a partial razor-thin power-law axisymmetric magnetized singular isothermal disk (MSID) that is embedded with a coplanar azimuthal magnetic field B? of a non-force-free radial scaling r?1/2 and that rotates differentially with a flat rotation curve of speed aD, where a is the isothermal sound speed and D is the dimensionless rotation parameter. Analytical solutions and stability criteria for determining D2 are derived. For aligned nonaxisymmetric MSIDs, eccentric m = 1 displacements may occur at arbitrary D2 in a full MSID but are allowed only with a2D2 = C2 A /2 in a partial MSID (CA is the Alfvn speed), while each case of |m | ? 1 gives two possible values of D2 for purely azimuthal propagations of fast and slow MHD density waves (FMDWs and SMDWs) that appear stationary in an inertial frame of reference. For disk galaxies modeled by a partial MSID resulting from a massive dark-matter halo with a flat rotation curve and a2D2 ? C2 A, stationary aligned perturbations of m = 1 are not allowed. For

Yu-qing Lou

2003-01-01T23:59:59.000Z

219

Computer software configuration management plan for the 241-AY and 241-AZ tank farm MICON automation system  

SciTech Connect

Software configuration items pertaining to the process control systems, of the ventilation systems of the tank farms, are identified and configuration controls are defined.

Teats, M.C.

1995-04-01T23:59:59.000Z

220

T-562: Novell ZENworks Configuration Management novell-tftp.exe Buffer  

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

2: Novell ZENworks Configuration Management novell-tftp.exe 2: Novell ZENworks Configuration Management novell-tftp.exe Buffer Overflow T-562: Novell ZENworks Configuration Management novell-tftp.exe Buffer Overflow February 22, 2011 - 7:00am Addthis PROBLEM: Novell ZENworks Buffer Overflow in TFTPD. PLATFORM: Novell ZENworks Configuration Management 10.x, Novell ZENworks Configuration Management 11.x ABSTRACT: A vulnerability has been reported in Novell ZENworks Configuration Management, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error in novell-tftp.exe when parsing requests. This can be exploited to cause a heap-based buffer overflow via a specially crafted request sent to UDP port 69. The vulnerability is reported in versions 10.3.1, 10.3.2, and 11.0.

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


221

A Framework for the Treatment of External Events in Configuration Risk Management: 2004 Configuration of Risk Management Forum Resea rch Task  

Science Conference Proceedings (OSTI)

To comply with paragraph (a)(4) of the Maintenance Rule (10 CFR 50.65), U.S. nuclear plants consider the potential impacts of external events as part of the overall requirement to assess configuration-specific risk. This report, one result of efforts to develop practical, cost-effective tools to support this process, presents an overall framework for consideration of external events in configuration risk management (CRM).

2005-03-14T23:59:59.000Z

222

Paramagnetic spin-up of a field reversed configuration with rotating magnetic field current drive.  

E-Print Network (OSTI)

??A transverse Rotating Magnetic Field (RMF) can drive toroidal current and sustain the poloidal flux of a Field Reversed Configuration (FRC) through the application of (more)

Peter, Andrew Maxwell

2009-01-01T23:59:59.000Z

223

U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain  

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

024: IBM Lotus Sametime Configuration Servlet Lets Remote Users 024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data November 1, 2011 - 8:15am Addthis PROBLEM: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data. PLATFORM: All Sametime Platforms : 7.0, 7.5, 7.5.1, 7.5.1.1, 7.5.1.2, 8.0, 8.0.1, 8.0.2, 8.5, 8.5.1, 8.5.1.1, 8.5.2 ABSTRACT: A remote user can obtain configuration information. reference lINKS: IBM Sametime Security Bulletin SecurityTracker Alert ID: 1026255 CVE-2011-1370 IMPACT ASSESSMENT: Medium Discussion: The Sametime server contains a configuration servlet that is accessed by several Sametime server processes. By default, this servlet does not require authentication, which could potentially allow an unauthorized user

224

Study on Performance Characteristics of Interior Permanent Magnet Synchronous Motor Due to Rotor Configuration.  

E-Print Network (OSTI)

??This research study was conducted in an effort to understand what effects the rotor configuration has on the performance of a permanent magnet synchronous machine, (more)

Kettlewell, James

2013-01-01T23:59:59.000Z

225

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

E-Print Network (OSTI)

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

Luo, Zhaohua

2010-01-01T23:59:59.000Z

226

Survey on the Use of Configuration Risk and Safety Management Tools at Nuclear Power Plants  

Science Conference Proceedings (OSTI)

A joint project of Electricite de France (EDF) and EPRI, this project analyzed use of configuration safety and risk management tools at nuclear power plants.

1998-09-24T23:59:59.000Z

227

Battery cell configuration for organic light emitting diode display in modern smartphones and tablet-PCs  

E-Print Network (OSTI)

Battery cell configuration for organic light emitting diode display in modern smartphones- spite of power efficiency of organic light emitting diode (OLED) display nature, the integrated display

Pedram, Massoud

228

CMS 3.1 Configuration Management Implementation, 10/13/98  

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

The objective of this surveillance is to verify implementation of configuration management requirements. These surveillance activities provide a basis for evaluating the effectiveness of the...

229

Domain Engineered Configuration Control Mark Ardis, Peter Dudak, Liz Dor, Wen-jenq Leu, Lloyd Nakatani, Bob Olsen,  

E-Print Network (OSTI)

, application engineering, domain specific language, configuration control, FAST, InfoWiz, VFSM, Tcl/Tk Abstract

Ardis, Mark

230

Configuration et CSP avec variables `a existence conditionnee Thomas van Oudenhove  

E-Print Network (OSTI)

Configuration et CSP avec variables `a existence conditionn´ee Thomas van Oudenhove Directeurs de contraintes, par le biais des CSP, ´etait une approche adapt´ee `a cette probl´ematique. Cependant, le concept ces approches. Mots-cl´es configuration de produit -- contraintes -- CSP -- r´esolution -- filtrage 1

Paris-Sud XI, Université de

231

Impact of software engineering research on the practice of software configuration management  

Science Conference Proceedings (OSTI)

Software Configuration Management (SCM) is an important discipline in professional software development and maintenance. The importance of SCM has increased as programs have become larger, more long lasting, and more mission and life critical. This article ... Keywords: Versioning, data model, process support, research impact, software configuration management, software engineering, workspace management

Jacky Estublier; David Leblang; Andr van der Hoek; Reidar Conradi; Geoffrey Clemm; Walter Tichy; Darcy Wiborg-Weber

2005-10-01T23:59:59.000Z

232

A behaviour-based control architecture for heterogeneous modular, multi-configurable, chained micro-robots  

Science Conference Proceedings (OSTI)

This article presents a new control architecture designed for heterogeneous modular, multi-configurable, chained micro-robots. This architecture attempts to fill the gap that exists in heterogeneous modular robotics research, in which little work has ... Keywords: Architecture, Behaviour-based, Control, Heterogeneous, Modular, Multi-configurable

A. Brunete; M. Hernando; E. Gambao; J. E. Torres

2012-12-01T23:59:59.000Z

233

Interactive visualisation of products in online configurators: a case study for variability modelling technologies  

Science Conference Proceedings (OSTI)

Numerous companies develop interactive environments to assist users in customising sales products through the selection of configuration options. A visual representation of these products is an important factor in terms of user experience. However, an ... Keywords: configurator, software product line, user interface, variability modelling

Marianela Ciolfi Felice, Joao Bosco Ferreira Filho, Mathieu Acher, Arnaud Blouin, Olivier Barais

2013-08-01T23:59:59.000Z

234

Method of creating a controlled interior surface configuration of passages within a substrate  

SciTech Connect

A method of creating a controlled interior surface configuration of passages within a substrate, particularly cooling passages of nozzles or buckets of a gas turbine, involves the hot isostatic pressing of a leachable passage insert whose surface carries the female image of the desired interior surface configuration inside the substrate followed by leaching of the insert from the substrate.

Dembowski, Peter V. (Richmond Heights, OH); Schilke, Peter W. (Scotia, NY)

1983-01-01T23:59:59.000Z

235

Affine crystal structure on rigged configurations of type $D_{n}^{(1)}$  

Science Conference Proceedings (OSTI)

Extending the work in Schilling (Int. Math. Res. Not. 2006:97376, 2006), we introduce the affine crystal action on rigged configurations which is isomorphic to the Kirillov---Reshetikhin crystal B r,s of type Keywords: Crystal bases, Quantum algebras, Rigged configurations

Masato Okado; Reiho Sakamoto; Anne Schilling

2013-05-01T23:59:59.000Z

236

Configuration and Evaluation of the WRF Model for the Study of Hawaiian Regional Climate  

Science Conference Proceedings (OSTI)

The Weather Research and Forecasting (WRF) model V3.3 has been configured for the Hawaiian Islands as a regional climate model for the region (HRCM). This paper documents the model configuration and presents a preliminary evaluation based on a ...

Chunxi Zhang; Yuqing Wang; Axel Lauer; Kevin Hamilton

2012-10-01T23:59:59.000Z

237

Supporting configurability in a mixed-media environment for design students  

Science Conference Proceedings (OSTI)

In many environments, the landscape of space and artefacts is evolving and changing with the tasks at hand. Integrating digital media and computation in these environments has to take into account the fact that people will configure space functions and ... Keywords: Boundary objects, Configurability, Mixed media environments, Mixed objects, Physical interfaces

Thomas Binder; Giorgio De Michelis; Michael Gervautz; Giulio Jacucci; Kresimir Matkovic; Thomas Psik; Ina Wagner

2004-09-01T23:59:59.000Z

238

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

E-Print Network (OSTI)

for TIPSTER Configuration Management Phase I of the TIPSTER Text Program, including the Text Retrieval be reused in many applications on many platforms, is the purpose of the TIPSTER Text Phase II Program/CM configuration organizations for TIPSTER II. It also describes the CM roles and responsibilities of other program

239

Networking without Dynamic Host Configuration Protocol server in Ethernet and Wireless Local Area Network  

Science Conference Proceedings (OSTI)

A Dynamic Host Configuration Protocol (DHCP) server is a well-known server deployed at a network to manage Internet Protocol (IP) addresses temporarily rentable to hosts in the network. Besides, a DHCP server provides hosts with important network information ... Keywords: AHCM, ARP, Autoconfiguration, Automatic host configuration, DHCP, Free IP address

Tzu-Chi Huang; Kuo-Chih Chu

2011-11-01T23:59:59.000Z

240

A cost-based analysis of intrusion detection system configuration under active or passive response  

Science Conference Proceedings (OSTI)

This paper studies the joint decisions of IDS configuration and alarm investigation capacity under active and passive responses. In active response, alarm events are blocked immediately, whereas alarm events are allowed to access the information assets ... Keywords: IDS configuration, Information security, Intrusion response, Investigation capacity

Wei T. Yue; Metin akany?ld?r?m

2010-12-01T23:59:59.000Z

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


241

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

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

0: EMC Smarts Network Configuration Manager Java RMI Access 0: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control V-120: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control March 27, 2013 - 12:51am Addthis PROBLEM: 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 reported in EMC Smarts Network Configuration Manager. REFERENCE LINKS: SecurityTracker Alert ID: 1028342 www.emc.com CVE-2013-0935 IMPACT ASSESSMENT: Medium DISCUSSION: A remote user can access some Java Remote Method Invocation methods without authenticating to gain control of the target system. A user can exploit unspecified flaws in the NCM System Management

242

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

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

0: EMC Smarts Network Configuration Manager Java RMI Access 0: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control V-120: EMC Smarts Network Configuration Manager Java RMI Access Control Flaw Lets Remote Users Gain Full Control March 27, 2013 - 12:51am Addthis PROBLEM: 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 reported in EMC Smarts Network Configuration Manager. REFERENCE LINKS: SecurityTracker Alert ID: 1028342 www.emc.com CVE-2013-0935 IMPACT ASSESSMENT: Medium DISCUSSION: A remote user can access some Java Remote Method Invocation methods without authenticating to gain control of the target system. A user can exploit unspecified flaws in the NCM System Management

243

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

SciTech Connect

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.

Cort, G.

1984-01-01T23:59:59.000Z

244

Configuration Management Assessment Plan - Developed By NNSA/Nevada Site Office Independent Oversight Division  

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

Configuration Management Configuration Management Assessment Plan NNSA/Nevada Site Office Independent Oversight Division Performance Objective: The objective of this assessment is to determine whether a Configuration Management Program (CM) is in place which allows for the availability and retrievability of accurate information, improves response to design and operational decisions, enhances worker safety, increases facility safety and reliability, increases efficiency of work efforts, and helps maintain integrity of interfacing orders. Criteria: The CM program supports DOE program implementation through the following: It provides the mechanisms for identifying, cataloging, and maintaining the design requirements and design basis (established to satisfy DOE O 420.1 Facility Safety).

245

QCDOC - Gauge field configurations/Lattice Archives at Brookhaven National Laboratory (BNL)  

DOE Data Explorer (OSTI)

While many of the QCD lattice configurations developed by the various DOE groups working in this arena may be stored in the Gauge Connection at NERSC (see http://qcd.nersc.gov/), there are still small collections to be found elsewhere. The collection at Brookhaven National Laboratory is one of these, a small collection of configurations generated specifically by the QCDOC Collaboration. There is a small collection of publicly available configurations that can be accessed without registration. Group downloads require registration for a password.

None

246

Oxygen-Consuming Chlor-Alkali Cell Configured To Minimize Peroxide  

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

Oxygen-Consuming Chlor-Alkali Cell Oxygen-Consuming Chlor-Alkali Cell Oxygen-Consuming Chlor-Alkali Cell Configured To Minimize Peroxide Formation Oxygen-consuming zero gap chlor-alkali cell was configured to minimize peroxide formation. Available for thumbnail of Feynman Center (505) 665-9090 Email Oxygen-Consuming Chlor-Alkali Cell Configured To Minimize Peroxide Formation Oxygen-consuming zero gap chlor-alkali cell was configured to minimize peroxide formation. The cell included an ion-exchange membrane that divided the cell into an anode chamber including an anode and a cathode chamber including an oxygen gas diffusion cathode. The cathode included a single-piece of electrically conducting graphitized carbon cloth. Catalyst and polytetrafluoroethylene were attached to only one side of the cloth.

247

V-010: 3Com, HP, and H3C Switches SNMP Configuration Lets Remote Users Take  

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

10: 3Com, HP, and H3C Switches SNMP Configuration Lets Remote 10: 3Com, HP, and H3C Switches SNMP Configuration Lets Remote Users Take Administrative Actions V-010: 3Com, HP, and H3C Switches SNMP Configuration Lets Remote Users Take Administrative Actions October 25, 2012 - 6:00am Addthis PROBLEM: 3Com, HP, and H3C Switches SNMP Configuration Lets Remote Users Take Administrative Actions PLATFORM: 3COM, and H3C Routers & Switches Specific products and model numbers is provided in the vendor's advisory. ABSTRACT: A vulnerability was reported in 3Com, HP, and H3C Switches. REFERENCE LINKS: HP Support document ID: c03515685 SecurityTracker Alert ID: 1027694 CVE-2012-3268 IMPACT ASSESSMENT: High DISCUSSION: A remote user with knowledge of the SNMP public community string can access potentially sensitive data (e.g., user names, passwords) in the

248

Surveillance Guide - CMS 3.3 Verification of System Configuration and Operations  

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

VERIFICATION OF SYSTEM CONFIGURATION AND OPERATIONS VERIFICATION OF SYSTEM CONFIGURATION AND OPERATIONS 1.0 Objective The objective of this surveillance is for the Facility Representative to verify that the facility's configuration and operations are consistent with facility design basis documentation. These surveillance activities provide a basis for evaluating the effectiveness of the contractor's program for implementing design basis requirements and for ensuring compliance with DOE requirements. 2.0 References 2.1 DOE 4700.1, Project Management System 2.2 DOE 5480.19, Conduct of Operations Requirements for DOE Facilities 2.3 DOE 5480.23, Safety Analysis Reports 2.4 DOE-STD-1073-93, Guide for Operational Configuration Management 3.0 Requirements Implemented This surveillance is conducted to implement requirements CM-0009

249

Questions and Answers - How do I read an electron configuration table?  

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

How are electrons placed inshells around the nucleus? How are electrons placed in<br>shells around the nucleus? Previous Question (How are electrons placed in shells around the nucleus?) Questions and Answers Main Index Next Question (What holds an electron around the nucleus?) What holds an electronaround the nucleus? How do I read an electron configuration table? Are you making a model of an atom and need to know how to place the electrons around the nucleus? If so, you will need to know how to read an element's electron configuration table. Follow these easy directions to learn how! What is an electron configuration table? An electron configuration table is a type of code that describes how many electrons are in each energy level of an atom and how the electrons are arranged within each energy level. It packs a lot of information into a

250

DOE Order Self Study Modules - DOE STD 1073-2003, Configuration Management  

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

73-2003 73-2003 CONFIGURATION MANAGEMENT DOE -STD-1073-2003 Familiar Level August 2011 1 DOE-STD-1073-2003 CONFIGURATION MANAGEMENT FAMILIAR LEVEL OBJECTIVES Given the familiar level of this module and the resources, you will be able to answer the following questions: 1. What is the purpose of DOE-STD-1073-2003? 2. What are the objectives of configuration management? 3. To what type of DOE facility does DOE-STD-1073-2003 apply? 4. What is the first set of structures, systems, and components (SSCs) that must be included in a configuration management program? 5. What is a work control process? 6. What is the objective of change control? 7. What are three elements that a technical review is designed to verify? 8. What three elements should be included in a design basis review?

251

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

Science Conference Proceedings (OSTI)

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.

WHITE, K.A.

2000-11-28T23:59:59.000Z

252

The placement-configuration problem for intrusion detection nodes in wireless sensor networks  

Science Conference Proceedings (OSTI)

The deployment and configuration of a distributed network intrusion detection system (NIDS) in a large Wireless Sensor Network (WSN) is an enormous challenge. A reduced number of devices equipped with detection capabilities have to be placed on strategic ...

Juan E. Tapiador, John A. Clark

2013-10-01T23:59:59.000Z

253

Fail-safe source-driven fission and fusion-fission hybrid reactor configurations.  

E-Print Network (OSTI)

??A source-driven nuclear reactor configuration with a unity infinite medium multiplication factor fission core (1k??), is investigated for both fission and fusion-fission hybrid systems. Suchaconfiguration (more)

Singh, Monish

2013-01-01T23:59:59.000Z

254

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

Science Conference Proceedings (OSTI)

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.

KOCH, M.R.

1999-11-16T23:59:59.000Z

255

An Updated Climatology of the TroposphereStratosphere Configuration of the Met Office's Unified Model  

Science Conference Proceedings (OSTI)

In this paper results are presented from an improved version of the tropospherestratosphere configuration of the Met Office Unified Model (UM). The new version incorporates a number of changes, including new radiation and orographic gravity wave ...

D. R. Jackson; J. Austin; N. Butchart

2001-07-01T23:59:59.000Z

256

Configuration and Setting Management for Protection and Control Devices and Systems  

Science Conference Proceedings (OSTI)

The EPRI roadmap reports forecast that as protection equipment and systems continuously evolve in the more feature-rich and sophisticated direction, management of the configuration and setting is becoming more critical in future. In 2011 EPRI Protection and Control (P&C) survey, configuration and setting management for protection and control systems remain one of the most pressing challenges for member utilities.To handle the growing complexity of todays P&C asset ...

2012-12-14T23:59:59.000Z

257

Configuration and Setting Management for Protection and Control Devices and Systems  

Science Conference Proceedings (OSTI)

The EPRI roadmap reports [6] [7] forecast that as protection equipment and systems continuously evolve in the more feature-rich and sophisticated direction, management of the configuration and setting is becoming more critical in future. In 2011 EPRI Protection and Control (P&C) survey, it was confirmed that configuration and setting management for protection and control devices and systems was one of the most pressing challenges from members.To handle the ...

2013-12-20T23:59:59.000Z

258

Geometric Matching of 3-D Objects: Assessing the Range of Successful Initial Configurations  

Science Conference Proceedings (OSTI)

Abstract: This paper considers the matching of 3D objects by a geometric approach based on the iterative closest point algorithm (ICP), which, starting from an initial configuration of two rigid objects, iteratively finds their best correspondence. The ... Keywords: 3D object geometric matching, SIC-range, convergence, experimental results, global minimum, image correspondence, image matching, iterative closest point algorithm, local minimum, object recognition, optimum matching, rigid object configuration

1997-05-01T23:59:59.000Z

259

Disposal configuration options for future uses of greater confinement disposal at the Nevada Test Site  

Science Conference Proceedings (OSTI)

The US Department of Energy (DOE) is responsible for disposing of a variety of radioactive and mixed wastes, some of which are considered special-case waste because they do not currently have a clear disposal option. The DOE`s Nevada Field Office contracted with Sandia National Laboratories to investigate the possibility of disposing of some of this special-case waste at the Nevada Test Site (NTS). As part of this investigation, a review of a near-surface and subsurface disposal options that was performed to develop alternative disposal configurations for special-case waste disposal at the NTS. The criteria for the review included (1) configurations appropriate for disposal at the NTS; (2) configurations for disposal of waste at least 100 ft below the ground surface; (3) configurations for which equipment and technology currently exist; and (4) configurations that meet the special requirements imposed by the nature of special-case waste. Four options for subsurface disposal of special-case waste are proposed: mined consolidated rock, mined alluvium, deep pits or trenches, and deep boreholes. Six different methods for near-surface disposal are also presented: earth-covered tumuli, above-grade concrete structures, trenches, below-grade concrete structures, shallow boreholes, and hydrofracture. Greater confinement disposal (GCD) in boreholes at least 100 ft deep, similar to that currently practiced at the GCD facility at the Area 5 Radioactive Waste Management Site at the NTS, was retained as the option that met the criteria for the review. Four borehole disposal configurations are proposed with engineered barriers that range from the native alluvium to a combination of gravel and concrete. The configurations identified will be used for system analysis that will be performed to determine the disposal configurations and wastes that may be suitable candidates for disposal of special-case wastes at the NTS.

Price, L. [Science Applications International Corp., Albuquerque, NM (United States)

1994-09-01T23:59:59.000Z

260

Guideline on Configuration Management for Digital Instrumentation and Control Equipment and Systems  

Science Conference Proceedings (OSTI)

Configuration Management (CM) is an integrated management process that addresses the definition and documentation of design requirements, controls changes, and maintains the documentation of the as-built facility configuration throughout the entire life cycle for plant structures, systems, components, software, and hardware. CM methods that address all of these elements are well established for traditional hardware-based instrumentation and control (IC) systems. However, industry experience has indicated...

2011-11-08T23:59:59.000Z

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


261

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

DOE Patents (OSTI)

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.

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

2012-01-24T23:59:59.000Z

262

In-line stirling energy system  

DOE Patents (OSTI)

A high efficiency generator is provided using a Stirling engine to amplify an acoustic wave by heating the gas in the engine in a forward mode. The engine is coupled to an alternator to convert heat input to the engine into electricity. A plurality of the engines and respective alternators can be coupled to operate in a timed sequence to produce multi-phase electricity without the need for conversion. The engine system may be operated in a reverse mode as a refrigerator/heat pump.

Backhaus, Scott N. (Espanola, NM); Keolian, Robert (State College, PA)

2011-03-22T23:59:59.000Z

263

In-line beam current monitor  

SciTech Connect

An intense relativistic electron beam current monitor for a gas neutralized beam transport line includes a first foil for conducting plasma current to the wall where it is measured as it traverses an inductive loop formed by a cavity in the wall. An insulator foil separates the first foil from a second conducting foil which returns the current to the plasma environment.

Ekdahl, Jr., Carl A. (Albuquerque, NM); Frost, Charles A. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

264

In-line rotating capacitive torque sensor  

DOE Patents (OSTI)

This invention is comprised of a proximity sensor based on a closed field circuit. The circuit comprises a ring oscillator using a symmetrical array of plates that creates an oscillating displacement current. The displacement current varies as a function of the proximity of objects to the plate array. Preferably the plates are in the form of a group of three pair of symmetric plates having a common center, arranged in a hexagonal pattern with opposing plates linked as a pair. The sensor produces logic level pulses suitable for interfacing with a computer or process controller. The proximity sensor can be incorporated into a load cell, a differential pressure gauge, or a device for measuring, the consistency of a characteristic of a material where a variation in the consistency causes the dielectric constant of the material to change.

Kronberg, J.W.

1991-12-31T23:59:59.000Z

265

Constellation Proposal for an Automated Determination of the RPM Gross Cost of New Entry (CONE)  

E-Print Network (OSTI)

Constellation offers the following outline for reforming the annual development of Gross CONE in an automated fashion. The purpose of the proposal is to derive CONE in a manner that reasonably approximates the contemporaneous cost to build a Reference Resource in the auction year, via rules that are easily understood, reasonably accurate, transparent, and replicable. In summary, our proposal features an initial benchmark gross CONE for the 2012?13 Delivery Year that will be adjusted based on an the Handy Whitman Index prior to subsequent annual Base Residual Auctions. Periodically, the prevailing cost to build the reference resource will be comprehensively studied by a third party expert. If the study varies from the index?adjusted CONE by more than a predetermined amount, then the study value shall be set as the CONE for the next BRA and shall be the new benchmark. The gross CONE would subsequently be adjusted to account for expected energy and ancillary services revenues as currently set forth in the OATT.

unknown authors

2009-01-01T23:59:59.000Z

266

Constellation Proposal for an Automated Determination of the RPM Gross Cost of New Entry (CONE)  

E-Print Network (OSTI)

Constellation offers the following outline for reforming the annual development of Gross CONE in an automated fashion. The purpose of the proposal is to derive CONE in a manner that reasonably approximates the contemporaneous cost to build a Reference Resource in the auction year, via rules that are easily understood, reasonably accurate, transparent, and replicable. In summary, our proposal features an initial benchmark gross CONE for the 2012-13 Delivery Year that will be adjusted based on an the Handy Whitman Index prior to subsequent annual Base Residual Auctions. Periodically, the prevailing cost to build the reference resource will be comprehensively studied by a third party expert. If the study varies from the index-adjusted CONE by more than a predetermined amount, then the study value shall be set as the CONE for the next BRA and shall be the new benchmark. The gross CONE would subsequently be adjusted to account for expected energy and ancillary services revenues as currently set forth in the OATT.

unknown authors

2009-01-01T23:59:59.000Z

267

RPM §9.02. Operational Procedures for Computing and Communications  

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

2 2 Operational Procedures for Computing and Communications Revised 09/08 Communications and Networking Systems Communications and Networking Management ICS Voice Telephone System ICS Data-Switching System LBLnet ICS-Dedicated Wiring and Optical-Fiber Systems Public Address System Public Address System Announcements Radio Communications Systems Radio Paging Systems Radio Emissions Standards and Spectrum Management Card Access, Security, Alarms, and Surveillance Systems Video, Fiber-Optic, and Other Signal Systems Video Teleconferencing Remote Access Services Electronic Access Background Fundamental Principles and Characteristics Kinds of Access Forms of Electronic Publishing Use of Information Systems and Services Background Definitions Scope Fundamental Principles General Page and File Policy

268

RPM §2.05. Employee Relations (Rev. 03/13)  

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

05 05 Management/Employee Relations If you have feedback regarding an HR policy or procedure, share it with us here. _____ Rev. 03/13 NOTE: The policies and procedures contained in Sections 2.05(E), (J), and (K) are reproduced exactly as they appear in the corresponding University of California Policies and Procedures and, consequently, use the UC numbering system. Areas of Responsibility Responsibilities of Managers/Supervisors Responsibilities of Employees Early Problem Resolution Employees and Supervisors Labor Employee Relations Corrective Action and Dismissal Policy Documentation Authority to Take Corrective Action Investigatory Leave Written Warnings Corrective Action Other Than Written Warnings and Dismissals Dismissal of Nonprobationary Career and Term Employees

269

RPM §2.26. Voluntary Leave Donation (Rev. 3/12)  

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

26 26 Voluntary Leave Donation If you have feedback regarding an HR policy or procedure, share it with us here. _____ Rev. 3/12 Purpose Applicability Definitions Catastrophic Illness or Injury Catastrophic Casualty Loss Catastrophic Bereavement Loss Exceptions Provisions of Leave Applicable Situations Receiving-Employee Conditions Donating-Employee Conditions Donations Minimum Donation Maximum Credit Misuse of Leave Tax Consequences Program Details A. Purpose This policy enables employees to donate vacation time on an hour-for-hour basis, regardless of differing pay scales, to another employee who: Has exhausted sick and vacation leave due to a catastrophic illness or injury affecting the employee or an eligible person, as defined below; or Has experienced a catastrophic casualty loss; or

270

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

E-Print Network (OSTI)

phosphatase Predicted helicase Uncharacterized conservedconjugating enzyme E3 ubiquitin ligase Predicted helicasePredicted helicase Predicted E3 ubiquitin ligase Predicted

Trujillo, Gloriana Victoria

2010-01-01T23:59:59.000Z

271

RPM 9.01. Computing and Communications (Rev. 09/07)  

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

for science and the Laboratory's use of IT resources should always reflect the intelligence, quality, integrity, and competence of the Laboratory and the University. LBNL's...

272

RPM-SIM (Renewable Energy Power System Modular Simulator) user's guide  

Science Conference Proceedings (OSTI)

Using the VisSimTM visual environment, researchers developed a modular simulation system to facilitate an application-specific, low-cost study of the system dynamics for wind-diesel hybrid power systems. This manual presents the principal modules of the simulator and, using case studies of a hybrid system, demonstrates some of the benefits that can be gained from understanding the effects of the designer's modifications to these complex dynamic systems.

Bialasiewicz, J.T.; Muljadi, E.; Nix, G.R.; Drouilhet, S.

1999-11-15T23:59:59.000Z

273

Advanced Intermediate Heat Transport Loop Design Configurations for Hydrogen Production Using High Temperature Nuclear Reactors  

DOE Green Energy (OSTI)

The US Department of Energy is investigating the use of high-temperature nuclear reactors to produce hydrogen using either thermochemical cycles or high-temperature electrolysis. Although the hydrogen production processes are in an early stage of development, coupling either of these processes to the high-temperature reactor requires both efficient heat transfer and adequate separation of the facilities to assure that off-normal events in the production facility do not impact the nuclear power plant. An intermediate heat transport loop will be required to separate the operations and safety functions of the nuclear and hydrogen plants. A next generation high-temperature reactor could be envisioned as a single-purpose facility that produces hydrogen or a dual-purpose facility that produces hydrogen and electricity. Early plants, such as the proposed Next Generation Nuclear Plant (NGNP), may be dual-purpose facilities that demonstrate both hydrogen and efficient electrical generation. Later plants could be single-purpose facilities. At this stage of development, both single- and dual-purpose facilities need to be understood. A number of possible configurations for a system that transfers heat between the nuclear reactor and the hydrogen and/or electrical generation plants were identified. These configurations included both direct and indirect cycles for the production of electricity. Both helium and liquid salts were considered as the working fluid in the intermediate heat transport loop. Methods were developed to perform thermal-hydraulic evaluations and cycle-efficiency evaluations of the different configurations and coolants. The thermal-hydraulic evaluations estimated the sizes of various components in the intermediate heat transport loop for the different configurations. The relative sizes of components provide a relative indication of the capital cost associated with the various configurations. Estimates of the overall cycle efficiency of the various configurations were also determined. The evaluations determined which configurations and coolants are the most promising from thermal-hydraulic and efficiency points of view.

Chang Oh; Cliff Davis; Rober Barner; Paul Pickard

2005-11-01T23:59:59.000Z

274

The Effect of Thermal Load Configurations on Passive Chilled Beam Performance  

E-Print Network (OSTI)

This dissertation presents the findings of a study to quantify the effect of heat source configurations on the performance of passive chilled beams. Experiments in a thermally controlled test room were conducted using thermal manikins as heat sources cooled with a 0.6 m by 2.4 m beam. The thermal manikins were arranged in a symmetric and an asymmetric configuration and tested over a range of input power to simulate a low-to-high load heat distribution of an indoor space. A computational fluid 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 for the beam cooling capacity to predict the beam performance based on the room thermal conditions. The experimental data revealed an average reduction of 15% in the passive beam cooling capacity for the asymmetrically configured thermal manikins compared to the symmetric arrangement. The CFD model was validated with the experimental data and predicted the asymmetric heat source beam performance reduction to be 17%. The reduction in performance based on the heat source arrangement was found with analysis of the CFD simulations to be a result of the above-beam air velocity field. The unbalanced thermal manikin configuration generated an unbalanced flow condition at the inlet of the beam that resulted in the room air circumventing the inlet of the passive beam, as compared to the inlet velocity field of the symmetric configuration. Additional configurations were investigated with the CFD model to include the beam position, floor area, ceiling height, and thermal manikin arrangements. The simulation results were analyzed by comparing the efficiency of beam performance using the beam cooling capacity calculation for each scenario. The predictions of additional configurations found that the efficiency increased when the beam was perpendicular to a group of heat sources and the changes in beam performance with heat source configurations was not affected by the interior dimensions of the space. However, the resulting thermal conditions in the occupied zone for the beam positions of highest efficiency may negatively impact the thermal comfort of occupants.

Nelson, Ian 1982-

2012-12-01T23:59:59.000Z

275

Workpiece Configuration  

Science Conference Proceedings (OSTI)

...15° Tool material Carbide Carbide Carbide Chip breaker dimensions Depth, mm (in.) 0.6 (0.025) 0.5 (0.020) 0.6 (0.025) Width, mm (in.) 1.6 ( ) 1.6 ( ) 2.0 ( ) Radius at base, mm (in.) 0.8 ( ) 0.8 ( ) 0.8 ( ) Nose radius, mm (in.) 0.13 (0.005) 0.4 ( ) 0.25??0.38 (0.010??0.015) Operating conditions (a)...

276

Inductrack configuration  

DOE Patents (OSTI)

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.

Post, Richard Freeman (Walnut Creek, CA)

2006-08-29T23:59:59.000Z

277

Configuring Client PCs for use with Project Assessment and Reporting System(PARS II)  

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

4/2011 4/2011 Page 1 of 4 1 PROCEDURES 1.1 Introduction Most users will be comfortable with contacting their IT Helpdesk for completing the instructions below. However, if you have Admin rights on your workstation, and are comfortable with making configuration changes to it, you may follow these directions yourself. 1.2 Installation of ActiveX Control WINDOWS XP 1. Log onto the workstation to be configured using an ID/Password that can perform administrative functions on that workstation (e.g. Install software, add Active-X controls). Note that administrative access is only required for initial workstation configuration, not ongoing operation of the PARS II application. 2. Check hardware, software and network requirements as identified in section 2 below. Less than

278

V-235: Cisco Mobility Services Engine Configuration Error Lets Remote Users  

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

5: Cisco Mobility Services Engine Configuration Error Lets 5: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login Anonymously V-235: Cisco Mobility Services Engine Configuration Error Lets Remote Users Login Anonymously September 5, 2013 - 12:33am Addthis PROBLEM: A vulnerability was reported in Cisco Mobility Services Engine. A remote user can login anonymously. PLATFORM: Cisco Mobility Services Engine ABSTRACT: A vulnerability in Cisco Mobility Services Engine could allow an unauthenticated, remote attacker to connect to a database replication port anonymously via Secure Sockets Layer (SSL). REFERENCE LINKS: SecurityTracker Alert ID: 1028972 CVE-2013-3469 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is due to the misconfiguration of the Oracle SSL service. An attacker could exploit this vulnerability by connecting to an

279

Determining the Mechanisms of Cationic Contamination Affecting PEMFCs Using a Strip Cell Configuration  

DOE Green Energy (OSTI)

Cationic contamination of polymer electrolyte fuel cells has been shown to cause serious performance degradation but the exact mechanisms of this degradation are not fully understood. A strip cell configuration was devised to study the mechanisms of performance degradation due to cationic contamination by changing the time and length scales of traditional fuel cells while providing a suitable reference electrode. This 'strip cell' configuration utilizes traditional Nafion{reg_sign} membranes in an in-plane configuration with electrodes painted on each end. Using this cell it was determined that cationic contaminants collect near the cathode of the fuel cell under load and that this profile leads to increased losses primarily in the cathode region. These results can be directly related to performance losses in a typical PEMFC contaminated by foreign cations.

Kienitz, B. L.; Zawodzinski, T. A.; Pivovar, B. S.; Garzon, F. H.

2008-01-01T23:59:59.000Z

280

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

SciTech Connect

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.

Koplow, Jeffrey P. (San Ramon, CA)

2012-01-10T23:59:59.000Z

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


281

Preliminary Evaluation of a Multiple-Generator Drive-Train Configuration for Wind Turbines: Preprint  

DOE Green Energy (OSTI)

The recent trend toward large wind turbines has led to very expensive gearboxes that hinder their feasibility. The gearboxes for these wind turbines are more expensive per kilowatt (kW) of rated power than for smaller turbines because the torque increases more quickly than the power when increasing the rotor diameter. Multiple-generator drivetrain configurations can reduce the drivetrain cost for large wind turbines while increasing the energy capture and reliability. The National Renewable Energy Laboratory (NREL) is reexamining the benefits of multiple-generator configurations through the Wind Partnership for Advanced Component Technology (WindPACT) program. This paper qualitatively compares a multiple-generator drivetrain configuration to a conventional drivetrain.

Cotrell, J.

2002-01-01T23:59:59.000Z

282

Operational concepts for the Environmental Restoration and Waste Management Configuration Study  

Science Conference Proceedings (OSTI)

DOE has initiated a planning process in anticipation of upgrading all DOE waste management operations and facilities. The EM Configuration Study examines four areas: (1) planning considerations, (2) system configuration, (3) operational concepts, and (4) resource assessments. Each area is addressed by a different team. Objective of the Operational Concepts Team 3 study is to investigate, identify, define, and evaluate alternative ways to manage DOE waste management facilities, while taking into consideration the information gathered by the other EM Configuration teams. This report provides information and criteria for evaluating the relative effectiveness and efficiency of various organizational alternatives that can be used to operate and manage DOE waste facilities. Intent of this report is not to select one best management alternative but rather to provide recommendations, conclusions, and background information from which decisions will be made at a future date.

NONE

1990-12-01T23:59:59.000Z

283

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

SciTech Connect

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.

Trauth, Sharon Lee

2007-05-01T23:59:59.000Z

284

Current-induced switching of magnetic domains to a perpendicular configuration  

Science Conference Proceedings (OSTI)

In a ferromagnet{endash}normal-metal{endash}ferromagnet trilayer, a current flowing perpendicularly to the layers creates a torque on the magnetic moments of the ferromagnets. When one of the contacts is superconducting, the torque not only favors parallel or antiparallel alignment of the magnetic moments, as is the case for two normal contacts, but can also favor a configuration where the two moments are perpendicular. In addition, whereas the conductance for parallel and antiparallel magnetic moments is the same, signalling the absence of giant magnetoresistance in the usual sense, the conductance is greater in the perpendicular configuration. Thus, a negative magnetoconductance is predicted, in contrast with the usual giant magnetoresistance.

Waintal, X.; Brouwer, P. W.

2001-06-01T23:59:59.000Z

285

September 24-25, 2003 HAPL meeting, UW, Madison 1 Armor Configuration & Thermal Analysis  

E-Print Network (OSTI)

September 24-25, 2003 HAPL meeting, UW, Madison 1 Armor Configuration & Thermal Analysis 1. Parametric analysis in support of system studies 2. Preliminary scoping analysis of the use of a porous armor #12;September 24-25, 2003 HAPL meeting, UW, Madison 2 Integrated Chamber Armor/FW/Blanket Analysis

Raffray, A. René

286

Baseline Configuration of the Cryogenic System for the International Linear Collider  

SciTech Connect

The paper discusses the main constraints and boundary conditions and describes the baseline configuration of the International Linear Collider (ILC) cryogenic system. The cryogenic layout, architecture and the cooling principle are presented. The paper addresses a plan for study and development required to demonstrate and improve the performance, to reduce cost and to attain the desired reliability.

Casas-Cubillos, J.; Claudet, S.; Parma, V.; Riddone, G.; Serio, L.; Tavian, L.; Vullierme, B.; van Weelderen, R.; /CERN; Chorowski, M.; /Wroclaw Tech. U.; Ganni, R.; Rode, C.; /Jefferson Lab; Klebaner, A.; Peterson, T.; Theilacker, J.; /Fermilab; Rousset, B.; /Grenoble, CEN; Weisend, J.; /SLAC

2007-06-18T23:59:59.000Z

287

Absorptive capacity configurations in supply chains: gearing for partner-enabled market knowledge creation  

Science Conference Proceedings (OSTI)

The need for continual value innovation is driving supply chains to evolve from a pure transactional focus to leveraging interorganizational partner ships for sharing information and, ultimately, market knowledge creation. Supply chain partners are (1) ... Keywords: absorptive capacity, configuration approaches, interorganizational information systems, knowledge management, process modularity, rich information, supply chain

Arvind Malhotra; Sanjay Gosain; Omar Sawy

2005-03-01T23:59:59.000Z

288

Towards accuracy of role-based access control configurations in component-based systems  

Science Conference Proceedings (OSTI)

Access control is a common concern in most software applications. In component-based systems, although developers can implement access control requirements (ACRs) by simply declaring role-based access control configurations (ACCs) of components, it is ... Keywords: Access control, Accuracy, Component-based system, Software architecture

Lianshan Sun; Gang Huang

2011-03-01T23:59:59.000Z

289

A study on optimal configuration for the mobile manipulator: using weight value and mobility  

Science Conference Proceedings (OSTI)

A Mobile Manipulator is redundant by itself. Using its redundant freedom, a mobile manipulator can perform various task. In this paper, to improve task execution efficiency utilizing the redundancy, optimal configurations of the mobile manipulator ... Keywords: gradient method, mobile robot, mobility, weight value

Jin-Gu Kang; Kwan-Houng Lee

2006-09-01T23:59:59.000Z

290

The cost of display switching: a comparison of mobile, large display and hybrid UI configurations  

Science Conference Proceedings (OSTI)

Attaching a large external display can help a mobile device user view more content at once. This paper reports on a study investigating how different configurations of input and output across displays affect performance, subjective workload and preferences ... Keywords: distributed user interfaces, map search, mobile input, multi-display environments, photo search, text search

Umar Rashid; Miguel A. Nacenta; Aaron Quigley

2012-05-01T23:59:59.000Z

291

Multi-objective optimal design of fuzzy logic controller using a self configurable swarm intelligence algorithm  

Science Conference Proceedings (OSTI)

This paper presents a multi-objective fuzzy logic controller (PSO-FLC) for active vibration control of seismically exited buildings by combining a new self configurable multi-objective PSO (particle swarm optimisation) algorithm with fuzzy logic controller. ... Keywords: Active vibration control, Fuzzy logic, Pareto optimal solutions, Particle swarm optimisation, Seismic excitation

A. Rama Mohan Rao; K. Sivasubramanian

2008-12-01T23:59:59.000Z

292

An alternative hypothesis for association between distribution wiring configurations and cancer: Planning phase  

Science Conference Proceedings (OSTI)

Several epidemiologic studies have reported positive associations between electric distribution wiring configurations and cancer incidence, particularly among children. According to the investigators of these studies, the results suggest a possible link between exposure to 60-Hertz magnetic fields because residential magnetic fields are correlated with wiring configurations. This report analyzes the plausibility of an alternate hypothesis to explain the epidemiologic observations, and recommends research to explore its validity. According to the hypothesis, ground return currents in plumbing service lines are associated with electric wiring configuration, and cause the release of corrosion products in tap water, whose ingestion constitutes a risk factor for cancer. To corroborate this hypothesis three conditions must be satisfied: the magnitude of the ground return currents in water pipes is related to wiring configuration, with higher currents generally found associated with homes classified in the high exposure categories; corrosion on the internal surface of water pipe is related to ac currents flowing on the pipe, with higher currents associated with higher rates of corrosion, and ingestion of water from pipes undergoing AC-induced corrosive processes increases the probability of developing cancer. The study's analysis did not uncover any critical data that would undermine the plausibility of this confounder hypothesis. 102 refs., 11 figs., 22 tabs.

Kavet, R. (Environmental Research Information, Inc., Palo Alto, CA (USA)); Silva, J.M. (Enertech Consultants, Campbell, CA (USA))

1990-06-01T23:59:59.000Z

293

Using On-Chip Configurable Logic to Reduce Embedded System Software Energy Greg Stitt1  

E-Print Network (OSTI)

Using On-Chip Configurable Logic to Reduce Embedded System Software Energy Greg Stitt1 , Brian We examine the energy savings possible by re-mapping critical software loops from a microprocessor that reduced software energy is an additional benefit, making such chips even more useful. We find critical

Vahid, Frank

294

The Reliability of a Fault-Tolerant Configuration Having Variable Coverage  

Science Conference Proceedings (OSTI)

An expression is derived for the reliability of an r-on-m fault-tolerant configuration (r spares supporting m identical operating units) when both the hazard and the coverage probability are functions of time. In addition, the coverage probability is ... Keywords: reliability modeling, Fault coverage, redundancy

J. J. Stiffler

1978-12-01T23:59:59.000Z

295

Ensemble Kalman Filter Configurations and Their Performance with the Logistic Map  

Science Conference Proceedings (OSTI)

This paper examines ensemble Kalman filter (EnKF) performance for a number of different EnKF configurations. The study is performed in a perfect-model context using the logistic map as forecast model. The focus is on EnKF performance when the ...

Herschel L. Mitchell; P. L. Houtekamer

2009-12-01T23:59:59.000Z

296

Path-coupled Signaling for Dynamic Metering Configuration in IP-based Networks  

E-Print Network (OSTI)

Path-coupled Signaling for Dynamic Metering Configuration in IP-based Networks Falko Dressler1,klenk,fessi,carle}@informatik.uni-tuebingen.de 3 Siemens Communications, Berlin, Germany cornelia.kappler@siemens.com Abstract Metering of the metering entities is based on centralized management systems. These systems usually have no knowledge about

Carle, Georg

297

Sensor Configuration Selection for Discrete-Event Systems under Unreliable Observations  

SciTech Connect

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.

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

2010-08-01T23:59:59.000Z

298

Windows Mobile Configuration for UR_RC_InternalSecure (early release) Page 1 of 1  

E-Print Network (OSTI)

Windows Mobile Configuration for UR_RC_InternalSecure (early release) Page 1 of 1 There are no screen shots for Windows Mobile at this time. 1. Click the start button which appears as the windows_RC_InternalSecure" as "Connected"; 14. Click the "OK" indicator at upper right portion of that window and you'll return connected

Portman, Douglas

299

New Mexico State University Dial-up Configurations for Windows XP  

E-Print Network (OSTI)

New Mexico State University Dial-up Configurations for Windows XP To use NMSU campus dial-up on your Windows XP computer, you will need a modem and these instructions to connect. You will also need://my.nmsu.edu/ to sign up. 1. Open the Start menu and click on My Computer. 2. In the My Computer window, click on My

Castillo, Steven P.

300

New Mexico State University Dial-up Configuration for Windows 2000  

E-Print Network (OSTI)

New Mexico State University Dial-up Configuration for Windows 2000 To use NMSU campus dial-up on your Windows 2000 computer, you will need a modem and these instructions to connect. You will also need-up Connections, to the right, click on Make New Connection. 2. In the Make a new Connection window, click on Next

Castillo, Steven P.

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


301

New Mexico State University Dial-up Configurations for Windows Vista  

E-Print Network (OSTI)

New Mexico State University Dial-up Configurations for Windows Vista To use NMSU campus dial-up on your Windows Vista computer, you will need a modem and these instructions to connect. You will also. From the Connect to a network window, click on Set up a connection or network from the bottom set

Castillo, Steven P.

302

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

E-Print Network (OSTI)

renewable sources or from the grid when the electricity is cheaper, and provide it when the prices on the usage patterns. In this paper, we develop a framework that considers the physical properties may be lower or completely eliminated if the batteries are not used in specific configurations. I

Simunic, Tajana

303

Free-space-optical mobile ad hoc networks: Auto-configurable building blocks  

Science Conference Proceedings (OSTI)

Existence of line of sight (LOS) and alignment between the communicating antennas is one of the key requirements for free-space-optical (FSO) communication. To ensure uninterrupted data flow, auto-aligning transmitter and receiver modules are necessary. ... Keywords: Angular diversity, Auto-configurable, Free space optical communication

Murat Yuksel; Jayasri Akella; Shivkumar Kalyanaraman; Partha Dutta

2009-04-01T23:59:59.000Z

304

Fusion Engineering and Design 38 (1997) 87113 Configuration and engineering design of the ARIES-RS  

E-Print Network (OSTI)

configuration that allows rapid removal of full sectors followed by disassembly in the hot cells during plant the failed unit is removed to a hot cell for repairs. Such quick replacement is not possible with a vertical- tained in hot cells after the plant returns to opera- tion. Furthermore, no rewelding is needed

California at San Diego, University of

305

Advanced Nuclear Technology: Impact of EPRI Pre-Operational and Operational Configuration Management Report (1022684) on the Nuclear Industry  

Science Conference Proceedings (OSTI)

EPRI Technical Report 1022684, Elements of Pre-Operational and Operational Configuration Management for a New Nuclear Facility, was developed by an EPRI Advanced Nuclear Technology (ANT) technical advisory group whose mission was to develop guidance for establishing a comprehensive configuration management (CM) program for the unique challenges of a new nuclear facility. The program elements developed for the pre-operation phase would then be in place to manage the configuration for the ...

2013-03-20T23:59:59.000Z

306

Quasi-Static Hydraulic Control Systems and Energy Savings Potential Using Independent Metering Four-Valve Assembly Configuration .  

E-Print Network (OSTI)

??In this research, the four valve independent metering configuration is to be investigated. The Independent metering concept will be emphasized and compared to spool valve (more)

Shenouda, Amir

2006-01-01T23:59:59.000Z

307

A Z2 Structure in the Configuration Space of Yang-Mills Theories  

E-Print Network (OSTI)

We argue for the presence of a Z2 topological structure in the space of static gauge-Higgs field configurations of SU(2n) and SO(2n) Yang-Mills theories. We rigorously prove the existence of a Z2 homotopy group of mappings from the 2-dim. projective sphere RP 2 into SU(2n)/Z2 and SO(2n)/Z2 Lie groups respectively. Consequently the symmetric phase of these theories admits infinite surfaces of odd-parity static and unstable gauge field configurations which divide into two disconnected sectors with integer Chern-Simons numbers n and n + 1/2 respectively. Such a Z2 structure persists in the Higgs phase of the above theories and accounts for the existence of CS = 1/2 odd-parity saddle point solutions to the field equations which correspond to spontaneous symmetry breaking mass scales. 1

Minos Axenides; Andrei Johansen; Jesper Mller

1995-01-01T23:59:59.000Z

308

DOE-STD-1073-2003; DOE Technical Stadnard Configuration Management  

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

NOT MEASUREMENT SENSITIVE DOE-STD-1073-2003 October 2003 DOE STANDARD Configuration Management U.S. Department of Energy AREA CMAN Washington, D.C. 20585 DISTRIBUTION STATEMENT: Approved for public release; further dissemination unlimited. DOE-STD-1073-2003 Configuration Management This document has been reproduced from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax (301) 903-9823 or on the web at http://tis.eh.doe.gov/techstds/. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 605-6000.

309

DOE-STD-1073-93-Pt. 1; DOE Standard Guide for Operational Configuration Management Program  

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

1 1 CHAPTER 2 IMPLEMENTATION GUIDANCE FOR OPERATIONAL CONFIGURATION MANAGEMENT This guidance is appropriate for high-hazard facilities expected to operate for an extended period. Since DOE facilities vary in hazard level and circumstances of operation, a graded approach to implementation should be adopted. 2.1 PROGRAM MANAGEMENT ELEMENT The program management element of a configuration management (CM) program coordinates program development and implementation and ensures overall program effectiveness. This element leads the development of the other CM program elements. Development of an effective CM program should be initiated promptly, where needed, to address known issues, to improve compliance with various DOE Orders, and to produce the benefits of improved safety, reduced errors, and increased efficiency.

310

Effect of geometric configuration and surface area on the thermal transmittance of edge-sealed draperies  

SciTech Connect

Laboratory studies were carried out to investigate the influence of fabric structure and geometric configuration of multilayer window draperies on the thermal insulation characteristics of drapery models. Drapery assemblies representing various configurations of drapery fullness, lining fullness, and spatial separation between lining and drapery fabrics were sealed at sides, top, and bottom to a full-scale window built into an insulated wall between a cold chamber, which simulated outdoor winter conditions, and the inside of a test room, which was maintained at indoor winter conditions. Thermal transmittance of the window/fabric systems was measured by transducers mounted on the surface of the window glass. The temperature of the cold chamber, the temperature and relative humidity of the test room, and the heat transfer were monitored by a desk-top computer system. The influence of fabric structure, drapery and lining, fabric surface area, and volume of air space within the drapery assembly on thermal transmittance are discussed.

Epps, H.H.; Goswami, B.C.; Hassenboehler, C.B.

1986-01-01T23:59:59.000Z

311

System configured for applying a modifying agent to a non-equidimensional substrate  

DOE Patents (OSTI)

The present invention is related to systems and methods for modifying various non-equidimensional substrates with modifying agents. The system comprises a processing chamber configured for passing the non-equidimensional substrate therethrough, wherein the processing chamber is further configured to accept a treatment mixture into the chamber during movement of the non-equidimensional substrate through the processing chamber. The treatment mixture can comprise of the modifying agent in a carrier medium, wherein the carrier medium is selected from the group consisting of a supercritical fluid, a near-critical fluid, a superheated fluid, a superheated liquid, and a liquefied gas. Thus, the modifying agent can be applied to the non-equidimensional substrate upon contact between the treatment mixture and the non-equidimensional substrate.

Janikowski; Stuart K. (Idaho Falls, ID), Argyle; Mark D. (Idaho Falls, ID), Fox; Robert V. (Idaho Falls, ID), Propp; W. Alan (Idaho Falls, ID), Toth; William J. (Idaho Falls, ID), Ginosar; Daniel M. (Idaho Falls, ID), Allen; Charles A. (Idaho Falls, ID), Miller; David L. (Idaho Falls, ID)

2007-07-10T23:59:59.000Z

312

Simulation and study of thermal performance of liquid desiccant cooling cycle configurations  

E-Print Network (OSTI)

Five configurations of a 3-ton liquid desiccant cooling cycle were simulated and analyzed on a digital computer. Algebraic equations were developed for the dry bulbtemperatures and humidity ratios at different locations in the systems and solved using a finite difference scheme. The simulations were done at steady state and standard ASHRAE indoor and outdoor conditions. The study compared thermal performance of these five system configurations consisting of a direct evaporative cooler, indirect evaporative cooler(s), liquid desiccant packed dehumidifying tower, and air-to-air heat exchanger. Constant effectiveness of 0.85 and 0.9 were assumed for the direct evaporative cooler and air-to-air heat exchanger respectively. The performance of these five cycles is judged by the thermal Coefficient of Performance (COP). The Sensible Heat Ratio (SHR) is used to quantify the ratio of sensible cooling provided to the total cooling done (sensible plus latent).

Dhir, Rajesh

1995-01-01T23:59:59.000Z

313

A Logic Block Enabling Logic Configuration by Non-Experts in Sensor Networks  

E-Print Network (OSTI)

Recent years have seen the evolution of networks of tiny low power computing blocks, known as sensor networks. In one class of sensor networks a non-expert user, who has little or no experience with electronics or programming, is required to select, connect and/or configure one or more blocks such that the blocks compute a particular Boolean logic function of sensor values. We describe a series of experiments showing that non-expert users have much difficulty with a block based on Boolean logic truth tables, and that a logic block having a sentence-like structure with some configurable switches yields a better success rate. We also show that adding color to a truth table improves results over a traditional truth table. Author Keywords Sensor networks, Boolean logic, embedded computing

Susan Cotterell; Frank Vahid

2005-01-01T23:59:59.000Z

314

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

Science Conference Proceedings (OSTI)

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.

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

2010-11-09T23:59:59.000Z

315

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

DOE Patents (OSTI)

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.

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

2008-12-16T23:59:59.000Z

316

Site-specific electronic configurations of Fe 3d states by energy loss by channeled electrons  

SciTech Connect

Site-specific configurations of Fe 3d electrons in a spinel ferrite were investigated by electron energy loss spectroscopy under electron channeling conditions. Site-specific spectra were extracted by applying a multivariate curve resolution (MCR) technique to the data set. An electronic difference in the Fe sites caused by ligand field splitting of trivalent Fe was probed. This demonstrated the promise of site-specific valence and spin state analysis in spintronics applications of spinel ferrites.

Tatsumi, Kazuyoshi; Muto, Shunsuke; Nishida, Ikuo [Department of Materials, Physics, and Energy Engineering, Nagoya University, Chikusa, Nagoya 464-8603 (Japan); Rusz, Jan [Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala (Sweden)

2010-05-17T23:59:59.000Z

317

Computer software configuration management plan for 200 East/West Liquid Effluent Facilities  

Science Conference Proceedings (OSTI)

This computer software management configuration plan covers the control of the software for the monitor and control system that operates the Effluent Treatment Facility and its associated truck load in station and some key aspects of the Liquid Effluent Retention Facility that stores condensate to be processed. Also controlled is the Treated Effluent Disposal System`s pumping stations and monitors waste generator flows in this system as well as the Phase Two Effluent Collection System.

Graf, F.A. Jr.

1995-02-27T23:59:59.000Z

318

Electron density and temperature profile diagnostics for C-2 field reversed configuration plasmas  

SciTech Connect

The 9-point Thomson scattering diagnostic system for the C-2 field reversed configuration plasmas is improved and the measured electron temperature profiles are consistent with theoretical expectations. Rayleigh scattering revealed a finite line width of the ruby laser emission, which complicates density calibration. Taking advantage of the plasma wobble motion, density profile reconstruction accuracy from the 6-chord two-color CO{sub 2}/HeNe interferometer data is improved.

Deng, B. H.; Kinley, J. S.; Schroeder, J. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States)

2012-10-15T23:59:59.000Z

319

Evaluation of alternate system configurations for solar repowering electric power plants  

Science Conference Proceedings (OSTI)

An assessment was performed for the Department of Energy to establish the technical feasibility, utility system impact and economic attractiveness of the solar repowered, El Paso Electric (EPE) Company Newman Unit number1. Typical characteristics of a baseline configuration, selected at the initiation of the study, and four alternative systems were defined. System cost estimates were made and a system cost/value analysis was performed. 2 refs.

Van Bibber, L.E.; Parker, W.G.

1981-01-01T23:59:59.000Z

320

Optimum cycle parameters of coal fired closed cycle gas turbine in regenerative and combined cycle configurations  

Science Conference Proceedings (OSTI)

This paper presents the methodology developed for the estimation of thermodynamic performance and reports the optimum cycle parameters of coal fired CCGT in regenerative and combined cycle configurations using air, helium and carbon dioxide as working gases. A rigorous approach has been followed for the determination of the cycle efficiency by assuming the specific heat of working gases as a continuous function of temperature for accurate estimation of cycle parameters. 14 refs.

Rao, J.S.

1982-01-01T23:59:59.000Z

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


321

Association of Wire Code Configuration With Long-Term Average 60-Hz Magnetic Fields and Exposure  

Science Conference Proceedings (OSTI)

Previous studies have reported associations between cancer and the configuration of outdoor electric utility lines, popularly referred to as the wire code, which were developed as a surrogate for time-weighted-average (TWA) exposure to magnetic fields. A study was conducted to measure the magnetic fields in over 200 houses in eight areas within the contiguous United States. This interim report presents the major results of that study.

1998-12-16T23:59:59.000Z

322

Study of inertia welding: the sensitivity of weld configuration and strength to variations in welding parameters  

Science Conference Proceedings (OSTI)

An experiment is described which is designed to demonstrate the forgiveness of inertia welding, that is, the relative insensitivity of weld strength to variations in energy (rotational speed of parts) and axial force. Although easily observed variations in the welding parameters produced easily observed changes in weldment configuration and changes in dimension (upset), only extremes in parameters produced changes in weld strength. Consequently, process monitoring and product inspection would be sufficient for quality assurance in a production environment.

Mote, M.W.

1981-12-01T23:59:59.000Z

323

Software solutions manage the definition, operation, maintenance and configuration control of the National Ignition Facility  

Science Conference Proceedings (OSTI)

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.

Dobson, D; Churby, A; Krieger, E; Maloy, D; White, K

2011-07-25T23:59:59.000Z

324

Passive Superconducting Flux Conservers for Rotating-Magnetic-Field-Driven Field-Reversed Configurations  

SciTech Connect

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.

E. Oz, C.E. Myers, M.R. Edwards, B. Berlinger, A. Brooks, and S.A. Cohen

2011-01-05T23:59:59.000Z

325

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

E-Print Network (OSTI)

Minor actinides represent the long-term radiotoxicity of nuclear wastes. As one of their potential incineration options, partitioning and transmutation in fission reactors are seriously considered worldwide. If implemented, these technologies could also be a source of nuclear fuel materials required for sustainability of nuclear energy. The objective of this research was to evaluate performance characteristics of Very High Temperature Reactors (VHTRs) and their variations due to configuration adjustments targeting achievability of spectral variations. The development of realistic whole-core 3D VHTR models and their benchmarking against experimental data was an inherent part of the research effort. Although the performance analysis was primarily focused on prismatic core configurations, 3D pebble-bed core models were also created and analyzed. The whole-core 3D models representing the prismatic block and pebble-bed cores were created for use with the SCALE 5.0 code system. Each of the models required the Dancoff correction factor to be externally calculated. The code system DANCOFF-MCThe whole-core/system 3D models with multi-heterogeneity treatments were validated by the benchmark problems. Obtained results are in agreement with the available High Temperature Test Reactor data. Preliminary analyses of actinide-fueled VHTR configurations have indicated promising performance characteristics. Utilization of minor actinides as a fuel component would facilitate development of new fuel cycles and support sustainability of a fuel source for nuclear energy assuring future operation of Generation IV nuclear energy systems. was utilized to perform the Dancoff factor calculations.

Ames, David E, II

2006-08-01T23:59:59.000Z

326

Configuration of Detection Software: A comparison of Decision and Game Theory Approaches. Decision Analysis  

E-Print Network (OSTI)

Firms are increasingly relying on software to detect fraud in domains such as security, financial services, tax, and auditing. A fundamental problem in using detection software for fraud detection is achieving the optimal balance between the detection and false-positive rates. Many firms use decision theory to address the configuration problem. Decision theory is based on the presumption that the firms actions do not influence the behavior of fraudsters. Game theory recognizes the fact that fraudsters do modify their strategies in response to firms actions. In this paper, we compare decision and game theory approaches to the detection software configuration problem when firms are faced with strategic users. We find that under most circumstances firms incur lower costs when they use the game theory as opposed to the decision theory because the decision theory approach frequently either over- or underconfigures the detection software. However, firms incur the same or lower cost under the decision theory approach compared with the game theory approach in a simultaneousmove game if configurations under decision theory and game theory are sufficiently close. A limitation of the game theory approach is that it requires user-specific utility parameters, which are difficult to estimate. Decision theory, in contrast to game theory, requires the fraud probability estimate, which is more easily obtained. Key words: detection software; fraud detection; intrusion detection; false alarm rate; detection rate; ROC curve; decision theory; game theory

Huseyin Cavusoglu; Srinivasan Raghunathan

2004-01-01T23:59:59.000Z

327

Randomly distilling W-class states into general configurations of two-party entanglement  

Science Conference Proceedings (OSTI)

In this article we obtain results for the task of converting a single N-qubit W-class state (of the form {radical}(x{sub 0})|00...0>+{radical}(x{sub 1})|10...0>+{center_dot}{center_dot}{center_dot}+{radical}(x{sub N})|00...1>) into maximum entanglement shared between two random parties. Previous studies in random distillation have not considered how the particular choice of target pairs affects the transformation, and here we develop a strategy for distilling into general configurations of target pairs. We completely solve the problem of determining the optimal distillation probability for all three-qubit configurations and most four-qubit configurations when x{sub 0}=0. Our proof involves deriving new entanglement monotones defined on the set of four-qubit W-class states. As an additional application of our results, we present new upper bounds for converting a generic W-class state into the standard W state |W{sub N}>={radical}((1/N))(|10...0>+{center_dot}{center_dot}{center_dot}+|00...1>).

Cui, W.; Chitambar, E.; Lo, H. K. [Center for Quantum Information and Quantum Control (CQIQC), Department of Physics and Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4 (Canada)

2011-11-15T23:59:59.000Z

328

Windows 7 Configuration for UR_RC_InternalSecure Page 1 of 4 http://www.rochester.edu/it/wireless  

E-Print Network (OSTI)

Windows 7 Configuration for UR_RC_InternalSecure Page 1 of 4 http_RC_InternalSecure" wireless network Ensure that "Connect automatically" is checked Click Connect #12;Windows 7 are connecting to UR_RC_InternalSecure. #12;Windows 7 Configuration for UR_RC_InternalSecure Page 3

Portman, Douglas

329

Transient analysis and energy optimization of solar heating and cooling systems in various configurations  

Science Conference Proceedings (OSTI)

In this paper, a transient simulation model of solar-assisted heating and cooling systems (SHC) is presented. A detailed case study is also discussed, in which three different configurations are considered. In all cases, the SHC system is based on the coupling of evacuated solar collectors with a single-stage LiBr-H{sub 2}O absorption chiller, and a gas-fired boiler is also included for auxiliary heating, only during the winter season. In the first configuration, the cooling capacity of the absorption chiller and the solar collector area are designed on the basis of the maximum cooling load, and an electric chiller is used as the auxiliary cooling system. The second layout is similar to the first one, but, in this case, the absorption chiller and the solar collector area are sized in order to balance only a fraction of the maximum cooling load. Finally, in the third configuration, there is no electric chiller, and the auxiliary gas-fired boiler is also used in summer to feed the absorption chiller, in case of scarce solar irradiation. The simulation model was developed using the TRNSYS software, and included the analysis of the dynamic behaviour of the building in which the SHC systems were supposed to be installed. The building was simulated using a single-lumped capacitance model. An economic model was also developed, in order to assess the operating and capital costs of the systems under analysis. Furthermore, a mixed heuristic-deterministic optimization algorithm was implemented, in order to determine the set of the synthesis/design variables that maximize the energy efficiency of each configuration under analysis. The results of the case study were analyzed on monthly and weekly basis, paying special attention to the energy and monetary flows of the standard and optimized configurations. The results are encouraging as for the potential of energy saving. On the contrary, the SHC systems appear still far from the economic profitability: however, this is notoriously true for the great majority of renewable energy systems. (author)

Calise, F.; Dentice d'Accadia, M.; Palombo, A. [DETEC - University of Naples Federico II, P.le Tecchio 80, 80125 Naples (Italy)

2010-03-15T23:59:59.000Z

330

Microsoft Word - 2.12.1 MOU between Engineering and AFRD 0913...  

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

configuration regarding Engineering matrixed employees is consistent with the LBNL Health & Safety Manual and the RPM and is summarized as follows: * The matrixed employee's...

331

Configuration management plan for waste tank farms and the 242-A evaporator of tank waste remediation system  

SciTech Connect

The configuration management architecture presented in this Configuration Management Plan is based on the functional model established by DOE-STD-1073-93, ``Guide for Operational Configuration Management Program.`` The DOE Standard defines the configuration management program by the five basic program elements of ``program management,`` ``design requirements,`` ``document control,`` ``change control,`` and ``assessments,`` and the two adjunct recovery programs of ``design reconstitution,`` and ``material condition and aging management.`` The CM model of five elements and two adjunct programs strengthen the necessary technical and administrative control to establish and maintain a consistent technical relationship among the requirements, physical configuration, and documentation. Although the DOE Standard was originally developed for the operational phase of nuclear facilities, this plan has the flexibility to be adapted and applied to all life-cycle phases of both nuclear and non-nuclear facilities. The configuration management criteria presented in this plan endorses the DOE Standard and has been tailored specifically to address the technical relationship of requirements, physical configuration, and documentation during the full life cycle of the Waste Tank Farms and 242-A Evaporator of Tank Waste Remediation System.

Laney, T.

1994-08-30T23:59:59.000Z

332

Thermal Analysis of the 9975 Package with the 3013 Configuration During Normal Conditions of Transport  

DOE Green Energy (OSTI)

Thermal analysis of the 9975 package with three configurations of the BNFL 3013 outer container (with Rocky Flats, SRS, and BNFL inner containers) have been performed for Normal Conditions of Transport (NCT) of plutonium oxide and metal. The NCT is defined in 10 CFR 71.71(c)(1) s an ambient of 100 F (38 C) in still air with 800 W/m{sup 2} and 400 W/m{sup 2} of solar heating on the drum top and sides, respectively. The 9975 drum package is considered to be in an upright position, and the drum bottom is adiabatic. The Rocky and SRS 3013 configurations with Pu metal contents (19 watts) result in acceptable (similar) packaging temperatures, however the plutonium metal temperatures are lower for the SRS design (SRS has helium fill gas whereas Rocky is essentially air filled). The BNFL configuration for Pu oxide contents (19 watts) result in acceptable temperatures and pressures based on limits in the 9975 Safety Analysis Report (SARP). However, for 30 watts of Pu oxide, the fiberboard peak temperatures are very near the SARP allowable. The pressure in the 3013 container is 688.4 psig for the 30 watt Pu oxide content and 569.5 psig for the 19 watt Pu oxide content. Gas species in the pressure computations include air, helium and hydrogen from complete radiolysis of the moisture. The oxygen generated from the radiolysis of the water is not included as a pressure contributor. The gas temperature in the pressure computations was very conservatively assumed to be the maximum plutonium temperature.

Hensel, S

1999-02-22T23:59:59.000Z

333

Creating a strategic plan for configuration management using computer aided software engineering (CASE) tools  

SciTech Connect

This paper provides guidance in the definition, documentation, measurement, enhancement of processes, and validation of a strategic plan for configuration management (CM). The approach and methodology used in establishing a strategic plan is the same for any enterprise, including the Department of Energy (DOE), commercial nuclear plants, the Department of Defense (DOD), or large industrial complexes. The principles and techniques presented are used world wide by some of the largest corporations. The authors used industry knowledge and the areas of their current employment to illustrate and provide examples. Developing a strategic configuration and information management plan for DOE Idaho Field Office (DOE-ID) facilities is discussed in this paper. A good knowledge of CM principles is the key to successful strategic planning. This paper will describe and define CM elements, and discuss how CM integrates the facility`s physical configuration, design basis, and documentation. The strategic plan does not need the support of a computer aided software engineering (CASE) tool. However, the use of the CASE tool provides a methodology for consistency in approach, graphics, and database capability combined to form an encyclopedia and a method of presentation that is easily understood and aids the process of reengineering. CASE tools have much more capability than those stated above. Some examples are supporting a joint application development group (JAD) to prepare a software functional specification document and, if necessary, provide the capability to automatically generate software application code. This paper briefly discusses characteristics and capabilities of two CASE tools that use different methodologies to generate similar deliverables.

Smith, P.R.; Sarfaty, R.

1993-05-01T23:59:59.000Z

334

Treated Effluent Disposal Facility (TEDF) Operator Training Station (OTS) System Configuration Management Plan  

Science Conference Proceedings (OSTI)

The Treated Effluent Disposal Facility Operator Training Station (TEDF OTS) is a computer based training tool designed to aid plant operations and engineering staff in familiarizing themselves with the TEDF Central Control System (CCS). It consists of PC compatible computers and a Programmable Logic Controller (PLC) designed to emulate the responses of various plant components connected to or under the control of the CCS. The system trains operators by simulating the normal operation but also has the ability to force failures of different equipment allowing the operator to react and observe the events. The paper describes organization, responsibilities, system configuration management activities, software, and action plans for fully utilizing the simulation program.

Carter, R.L. Jr.

1994-06-01T23:59:59.000Z

335

SOLAR MIXTURE OPACITY CALCULATIONS USING DETAILED CONFIGURATION AND LEVEL ACCOUNTING TREATMENTS  

Science Conference Proceedings (OSTI)

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.

Blancard, Christophe; Cosse, Philippe; Faussurier, Gerald [CEA, DAM, DIF, F-91297 Arpajon (France)

2012-01-20T23:59:59.000Z

336

Internal natural gas reformer-dividers for a solid oxide fuel cell generator configuration  

Science Conference Proceedings (OSTI)

This patent describes a fuel cell generator configuration. It comprises electrically connected, axially elongated, fuel cells, each cell having an outer and inner electrode with solid oxide electrolyte therebetween; where elongated dividers separate and are positioned between fuel cells, and where at least one of the elongated dividers is hollow, the hollow divider having solid elongated walls, a reformable fuel mixture entrance, and an exit allowing passage of reformed fuel to the fuel cells, and where the cross-section of the divider contains a catalytic reforming material.

Reichner, P.

1992-01-21T23:59:59.000Z

337

Octupole coil configuration for the Tandem Mirror Experiment Upgrade (TMX-U)  

Science Conference Proceedings (OSTI)

The octupole plug concept offers the attractive possibility of reducing the length of the plug and transition sections in tandem mirror reactors. In the Tandem Mirror Experiment Upgrade (TMX-U), we are designing an octupole plug-transition that will replace our current quadrupole plug-transition. The reduction in length is made possible by the more nearly circular plasma cross section throughout the plug and transition sections. The principal physics of the design is the magnetohydrodynamic (MHD) stabilization of the core plasma in the plug by a hot electron ring in the mantle region surrounding the core. This hot electron mantle is MHD stable because of the good curvature field lines provided by the octupole. The positive radial pressure gradient in the hot electron mantle in turn stabilizes the core's plasma. Each octupole set consists of six coils replacing the transition and plug sets in the existing TMX-U experiment. The central cell coils will remain unchanged. Five of the coils for each of the new sets will be fabricated, while one, the 6-T mirror coil, will be reused from TMX-U. This paper will elaborate on the design configuration of the magnets. In particular, the configuration provides for adequate neutral beam lines-of-sight, and access for 0.615 MW of electron-cyclotron resonant heating (ECRH) on each end.

Wong, R.L.; Calderon, M.O.; Felker, B.; Jackson, M.C.; Pedrotti, L.R.

1985-11-14T23:59:59.000Z

338

Solid oxide fuel cell generator with removable modular fuel cell stack configurations  

DOE Patents (OSTI)

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.

Gillett, James E. (Greensburg, PA); Dederer, Jeffrey T. (Valencia, PA); Zafred, Paolo R. (Pittsburgh, PA); Collie, Jeffrey C. (Pittsburgh, PA)

1998-01-01T23:59:59.000Z

339

Combining structured and unstructured data in a configurable web-based logbook  

SciTech Connect

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.

Nogiec, J.; Trombly-Freytag, K.; /Fermilab

2009-10-01T23:59:59.000Z

340

Optimization and analysis of LiH thermal energy storage device configurations for space power applications  

DOE Green Energy (OSTI)

Thermal energy storage (TES) can be used to reduce the area and mass of the heat rejection system for space-based sprint power systems. During the sprint mode power cycle, reject heat is placed into storage. The heat is then rejected to the ultimate sink over the much longer non-operational portion of the orbits, through a correspondingly smaller radiator. Preliminary analysis has shown significant weight advantage for the heat storage plus radiator concept over the radiator only concept. Thermal performance analysis and optimization of five heat sink TES configurations using LiH was completed. The configurations are: (a) LiH encapsulated spheres in the packed bed, (b) standard tube and shell arrangement with LiH on the tube side, (c) tube and shell with LiH on the shell side, (d) alternating concentric rings of LiH and heat transport fluid, and (e) parallel slabs of LiH. System performance was calculated for a wide range of parameters and included effects of prespecified internal voids, enhanced conductivity and internal fins.

Siman-Tov, M.; Williams, P.; Olszewski, M.

1987-01-01T23:59:59.000Z

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


341

SCALE-4 Analysis of LaSalle Unit 1 BWR Commercial Reactor Critical Configurations  

SciTech Connect

Five commercial reactor criticals (CRCs) for the LaSalle Unit 1 boiling-water reactor have been analyzed using KENO V.a, the Monte Carlo criticality code of the SCALE 4 code system. The irradiated fuel assembly isotopics for the criticality analyses were provided by the Waste Package Design team at the Yucca Mountain Project in the US, who performed the depletion calculations using the SAS2H sequence of SCALE 4. The reactor critical measurements involved two beginning-of-cycle and three middle-of-cycle configurations. The CRCs involved relatively low-cycle burnups, and therefore contained a relatively high gadolinium poison content in the reactor assemblies. This report summarizes the data and methods used in analyzing the critical configurations and assesses the sensitivity of the results to some of the modeling approximations used to represent the gadolinium poison distribution within the assemblies. The KENO V.a calculations, performed using the SCALE 44GROUPNDF5 ENDF/B-V cross-section library, yield predicted k{sub eff} values within about 1% {Delta}k/k relative to reactor measurements for the five CRCs using general 8-pin and 9-pin heterogeneous gadolinium poison pin assembly models.

Gauld, I.C.

2000-03-01T23:59:59.000Z

342

SCALE-4 Analysis of LaSalle Unit 1 BWR Commercial Reactor Critical Configuration  

Science Conference Proceedings (OSTI)

Five commercial reactor criticals (CRCs) for the LaSalle Unit 1 boiling-water reactor have been analyzed using KENO V.a, the Monte Carlo criticality code of the SCALE 4 code system. The irradiated fuel assembly isotopics for the criticality analyses were provided by the Waste Package Design team at the Yucca Mountain Project in the United States, who performed the depletion calculations using the SAS2H sequence of SCALE 4. The reactor critical measurements involved two beginning-of-cycle and three middle-of-cycle configurations. The CRCs involved relatively low-cycle burnups, and therefore contained a relatively high gadolinium poison content in the reactor assemblies. This report summarizes the data and methods used in analyzing the critical configurations and assesses the sensitivity of the results to some of the modeling approximations used to represent the gadolinium poison distribution within the assemblies. The KENO V.a calculations, performed using the SCALE 44GROUPNDF5 ENDF/B-V cross-section library, yield predicted k{sub eff} values within about 1% {Delta}k/k relative to reactor measurements for the five CRCs using general 8-pin and 9-pin heterogeneous gadolinium poison pin assembly models.

Gauld, I.C.

2000-03-16T23:59:59.000Z

343

Traveling wave current drive theory for an arbitrary m-polar configuration  

Science Conference Proceedings (OSTI)

An extension of the formalism employed to describe current drive in magnetized plasmas by means of traveling magnetic fields (or double-helix configuration) is presented. In all previous theoretical studies, only driving fields with dipolar topology have been employed and the figure of merit of the current drive mechanism has never been analyzed in terms of the dissipation in the power feeding circuit. In this paper, we show how to express the model equations in terms of the current amplitude in the coils, for an arbitrary number of equally spaced coils wound around the plasma column. We present a brief review of the existing theory and a theoretical formulation, valid for an arbitrary m-polar helical symmetry, which removes the above mentioned complications and limitations. In the limit of straight coils, our magnetic field expression agrees exactly with well-established results of the literature for rotating magnetic field current drive. Finally, we present initial numerical results from a recently developed code which consistently compares the steady driven nonlinear Hall currents and steady fields, corresponding to different configurations in terms of the Ohmic dissipation in the helical coils and discuss future perspectives.

Duarte, V. N. [Instituto de Fisica, Universidade de Sao Paulo, 05508-090 Sao Paulo-SP (Brazil); Clemente, R. A. [Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas, 13083-859 Campinas-SP (Brazil); Farengo, R. [Centro Atomico Bariloche and Instituto Balseiro, S. C. de Bariloche (8400), RN (Argentina)

2013-03-15T23:59:59.000Z

344

Solid oxide fuel cell generator with removable modular fuel cell stack configurations  

DOE Patents (OSTI)

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.

Gillett, J.E.; Dederer, J.T.; Zafred, P.R.; Collie, J.C.

1998-04-21T23:59:59.000Z

345

Self-interstitial configurations in hcp Zr: a first principles analysis  

Science Conference Proceedings (OSTI)

Analysis of microstructure evolution in irradiated Zr and Zr alloys based on the modern radiation damage theory suggests some important features of self-interstitial atoms (SIAs). Alignment of vacancy loops and voids along basal planes requires anisotropic interstitial transport with a dominant contribution along the basal plane. Under neutron irradiation this can be explained by one-dimensional mobility of SIA clusters but experiments under electron irradiation indicate unambiguously that even the single SIA should exhibit anisotropic diffusion. No experimental information is available on SIA properties in Zr and the data obtained by ab initio calculations within the last decade reported stable SIA configurations that should provide essentially three-dimensional diffusion. To clarify this issue, an extensive investigation of SIAs in Zr has been performed from first principles using two different codes. It was demonstrated that simulation cell size, type of pseudopotential, the exchange-correlation functional, and the c/a ratio are crucially important for determining the properties of interstitials in hcp Zr. The most stable SIA configurations lie in the basal plane, which should lead to SIA diffusion mainly along basal planes. The results provide a confirmation of basic mechanisms for microstructural evolution under irradiation.

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

2013-01-01T23:59:59.000Z

346

Holliday Triangle Hunter (HolT Hunter): Efficient Software for Identifying Low Strain DNA Triangular Configurations  

SciTech Connect

Synthetic DNA nanostructures are typically held together primarily by Holliday junctions. One of the most basic types of structures possible to assemble with only DNA and Holliday junctions is the triangle. To date, however, only equilateral triangles have been assembled in this manner - primarily because it is difficult to figure out what configurations of Holliday triangles have low strain. Early attempts at identifying such configurations relied upon calculations that followed the strained helical paths of DNA. Those methods, however, were computationally expensive, and failed to find many of the possible solutions. I have developed a new approach to identifying Holliday triangles that is computationally faster, and finds well over 95% of the possible solutions. The new approach is based on splitting the problem into two parts. The first part involves figuring out all the different ways that three featureless rods of the appropriate length and diameter can weave over and under one another to form a triangle. The second part of the computation entails seeing whether double helical DNA backbones can fit into the shape dictated by the rods in such a manner that the strands can cross over from one domain to the other at the appropriate spots. Structures with low strain (that is, good fit between the rods and the helices) on all three edges are recorded as promising for assembly.

Sherman, W.B.

2012-04-16T23:59:59.000Z

347

Microsoft Word - Configuring Workstations for use with the PARS II System.V3.0.doc  

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

30/2010 30/2010 1 PROCEDURES 1.1 Introduction Most users will be comfortable with contacting their IT Helpdesk for completing the instructions below. However, If you have Admin rights on your workstation, and are comfortable with making configuration changes to it, you may follow these directions yourself. 1.2 Installation of Dekker, Ltd. ActiveX Control 1. Log onto the workstation to be configured using an ID/Password that can perform administrative functions on the workstation being configured (e.g. Install software, add Active-X controls). Note that administrative access is only required for initial workstation configuration, not ongoing operation of the PARS II application on the workstation. 2. Check hardware, software and network requirements as identified in section 2 below.

348

DTE Energy Technologies With Detroit Edison Co. and Kinectrics Inc.: Distributed Resources Aggregation Modeling and Field Configuration Testing  

Science Conference Proceedings (OSTI)

Summarizes the work of DTE Energy Technologies, Detroit Edison, and Kinectrics, under contract to DOE's Distribution and Interconnection R&D, to develop distributed resources aggregation modeling and field configuration testing.

Not Available

2003-10-01T23:59:59.000Z

349

Design Configurations for a Very High Temperature Gas-Cooled Reactor Designed to Generate Electricity and Hydrogen  

DOE Green Energy (OSTI)

The High Temperature Gas-Cooled Reactor is being envisioned that will generate not just electricity, but also hydrogen to charge up fuel cells for cars, trucks and other mobile energy uses. INL engineers studied various heat-transfer working fluidsincluding helium and liquid saltsin seven different configurations. In computer simulations, serial configurations diverted some energy from the heated fluid flowing to the electric plant and hydrogen production plant. In anticipation of the design, development and procurement of an advanced power conversion system for HTGR, this study was initiated to identify the major design and technology options and their tradeoffs in the evaluation of power conversion system (PCS) coupled to hydrogen plant. In this study, we investigated a number of design configurations and performed thermal hydraulic analyses using various working fluids and various conditions (Oh, 2005). This paper includes a portion of thermal hydraulic results based on a direct cycle and a parallel intermediate heat exchanger (IHX) configuration option.

Conference preceedings

2006-07-01T23:59:59.000Z

350

A Comparison of Supercritical Carbon Dioxide Power Cycle Configurations with an Emphasis on CSP Applications (Presentation)  

SciTech Connect

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.

Neises, T.; Turchi, C.

2013-09-01T23:59:59.000Z

351

Special ESP configurations designed to test and produce Yemen oil field. [Electric-Submersible Pump  

SciTech Connect

Innovative electric-submersible-pump (ESP) configurations were used in the exploration phase of a Yemen oil field discovered by Canadian Occidental Petroleum Ltd. Because of subnormal reservoir pressure, CanOxy developed the field with ESPs and had to install surface components that could operate at the high, 130 F., ambient temperatures common in Yemen. The field is in a remote area that has seen very little development. The reservoirs produce a medium-to-heavy crude with a low gas/oil ratio, typically less than 20 scf/bbl. Problems faced in evaluating the field included drilling through unconsolidated sands with high flow capacity and subnormal reservoir pressure. CanOxy had to develop the technology to test the wells during the exploration phase, and intends to use new, or at least uncommon technology, for producing the wells. The paper describes testing the wells, the electric generators and variable speed drives, and the use of these pumps on production wells.

Wilkie, D.I. (Canadian Occidental Petroleum Ltd., Calgary, Alberta (Canada))

1993-09-27T23:59:59.000Z

352

DOE-STD-1073-93-Pt. 1; DOE Standard Guide for Operational Configuration Management Program  

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

3-93-Pt.2 3-93-Pt.2 November 1993 DOE STANDARD GUIDE FOR OPERATIONAL CONFIGURATION MANAGEMENT PROGRAM Including the Adjunct Programs of Design Reconstitution and Material Condition and Aging Management PART ll U.S. Department of Energy AREA CMAN Washington, D.C. 20585 DISTRIBUTION STATEMENT A: Approved for public release; distribution Is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; (615) 576-8401. Available to the public from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161. Order No. DE94005408 i CONTENTS FOREWORD .

353

Field-Reversed Configuration Power Plant Critical-Issue Scoping Study  

SciTech Connect

A team from the Universities of Wisconsin, Washington, and Illinois performed an engineering scoping study of critical issues for field-reversed configuration (FRC) power plants. The key tasks for this research were (1) systems analysis for deuterium-tritium (D-T) FRC fusion power plants, and (2) conceptual design of the blanket and shield module for an FRC fusion core. For the engineering conceptual design of the fusion core, the project team focused on intermediate-term technology. For example, one decision was to use steele structure. The FRC systems analysis led to a fusion power plant with attractive features including modest size, cylindrical symmetry, good thermal efficiency (52%), relatively easy maintenance, and a high ratio of electric power to fusion core mass, indicating that it would have favorable economics.

Santarius, J. F.; Mogahed, E. A.; Emmert, G. A.; Khater, H. Y.; Nguyen, C. N.; Ryzhkov, S. V.; Stubna, M. D.

2000-03-31T23:59:59.000Z

354

Configuration and performance of the indirect-fired fuel cell bottomed turbine cycle  

SciTech Connect

The natural gas, indirect-fired fuel cell bottomed turbine cycle (NG-IFFC) is introduced as a novel power plant system for the distributed power and on-site markets in the 20--200 megawatt (MW) size range. The novel indirect-fired carbonate fuel cell bottomed turbine cycle (NG-IFCFC) power plant system configures the ambient pressure carbonate fuel cell with a gas turbine, air compressor, combustor, and ceramic heat exchanger. Performance calculations from ASPEN simulations present material and energy balances with expected power output. The results indicate efficiencies and heat rates for the NG-IFCFC are comparable to conventionally bottomed carbonate fuel cell steam bottomed cycles, but with smaller and less expensive components.

Micheli, P.L.; Williams, M.C.; Parsons, E.L. Jr.

1993-12-31T23:59:59.000Z

355

Field-Reversed Configuration Formation Scheme Utilizing a Spheromak and Solenoid Induction  

Science Conference Proceedings (OSTI)

A new field-reversed configuration (FRC) formation technique is described, where a spheromak transitions to a FRC with inductive current drive. The transition is accomplished only in argon and krypton plasmas, where low-n kink modes are suppressed; spheromaks with a lighter majority species, such as neon and helium, either display a terminal tilt-mode, or an n=2 kink instability, both resulting in discharge termination. The stability of argon and krypton plasmas through the transition is attributed to the rapid magnetic diffusion of the currents that drive the kink-instability. The decay of helicity during the transition is consistent with that expected from resistivity. This observation indicates a new scheme to form a FRC plasma, provided stability to low-n modes is maintained, as well as a unique situation where the FRC is a preferred state.

S.P. Gerhardt, E.V. Belova, M. Yamada, H. Ji, Y. Ren, B. McGeehan, and M. Inomoto

2008-06-12T23:59:59.000Z

356

Lithium isotopes within the ab intio no-core full configuration approach  

E-Print Network (OSTI)

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%.

Chase Cockrell; James P. Vary; Pieter Maris

2012-01-03T23:59:59.000Z

357

EFFECT OF ELECTROLYZER CONFIGURATION AND PERFORMANCE ON HYBRID SULFUR PROCESS NET THERMAL EFFICIENCY  

DOE Green Energy (OSTI)

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.

Gorensek, M

2007-03-16T23:59:59.000Z

358

Stochastic Ion Heating in a Field-reversed Configuration Geometry by Rotating Magnetic Fields  

Science Conference Proceedings (OSTI)

Ion heating by application of rotating magnetic fields (RMF) to a prolate field-reversed configuration(FRC) is explored by analytical and numerical techniques. For odd-parity RMF (RMFo), perturbation analysis shows ions in figure-8 orbits gain energy at resonances of the RMFo frequency, ?R, with the figure-8 orbital frequency, ?. Since figure-8 orbits tend to gain the most energy from the RMF and are unlikely to escape in the cusp region (where most losses occur), they are optimal candidates for rapid stochastic heating, as compared to cyclotron and betatron orbits. Comparisons are made between heating caused by even- and odd-parity RMFs and between heating in currently operating and in reactor-scale FRC devices.

S.A. Cohen, A.S. Landsman, and A.H. Glasser

2007-06-25T23:59:59.000Z

359

Spherical shock-ignition experiments with the 40 + 20-beam configuration on OMEGA  

Science Conference Proceedings (OSTI)

Spherical shock-ignition experiments on OMEGA used a novel beam configuration that separates low-intensity compression beams and high-intensity spike beams. Significant improvements in the performance of plastic-shell, D{sub 2} implosions were observed with repointed beams. The analysis of the coupling of the high-intensity spike beam energy into the imploding capsule indicates that absorbed hot-electron energy contributes to the coupling. The backscattering of laser energy was measured to reach up to 36% at single-beam intensities of {approx}8 Multiplication-Sign 10{sup 15} W/cm{sup 2}. Hard x-ray measurements revealed a relatively low hot-electron temperature of {approx}30 keV independent of intensity and timing. At the highest intensity, stimulated Brillouin scattering occurs near and above the quarter-critical density and the two-plasmon-decay instability is suppressed.

Theobald, W.; Anderson, K. S.; Delettrez, J. A.; Glebov, V. Yu.; Gotchev, O. V.; Hohenberger, M.; Hu, S. X.; Marshall, F. J.; Sangster, T. C.; Seka, W.; Stoeckl, C.; Yaakobi, B. [Laboratory for Laser Energetics and Fusion Science Center, University of Rochester, Rochester, New York 14623 (United States); Nora, R.; Betti, R.; Meyerhofer, D. D. [Laboratory for Laser Energetics and Fusion Science Center, University of Rochester, Rochester, New York 14623 (United States); Department of Mechanical Engineering and Physics at the University of Rochester, Rochester, New York 14623 (United States); Lafon, M. [Laboratory for Laser Energetics and Fusion Science Center, University of Rochester, Rochester, New York 14623 (United States); University of Bordeaux, CEA, CNRS, CELIA (Centre Lasers Intenses et Applications), F-33400 Talence (France); Casner, A. [CEA, DAM, DIF, F-91297 Arpajon (France); Ribeyre, X.; Schurtz, G. [University of Bordeaux, CEA, CNRS, CELIA (Centre Lasers Intenses et Applications), F-33400 Talence (France); Frenje, J. A. [Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); and others

2012-10-15T23:59:59.000Z

360

Modulated active charge exchange fast ion diagnostic for the C-2 field-reversed configuration experiment  

Science Conference Proceedings (OSTI)

A diagnostic technique for measuring the fast-ion energy distribution in a field-reversed configuration plasma was developed and tested on the C-2 experiment. A deuterium neutral beam modulated at 22 kHz is injected into the plasma, producing a localized charge-exchange target for the confined fast protons. The escaping fast neutrals are detected by a neutral particle analyzer. The target beam transverse size ({approx}15 cm) defines the spatial resolution of the method. The equivalent current density of the target beam is {density ({approx}6 Multiplication-Sign 10{sup 9} cm{sup -3}) that highly exceeds the background neutral density in the core of C-2. The deuterium fast-ions due to the target beam (E{approx}27 keV), are not confined in C-2 and thus make a negligible contribution to the measured signals.

Korepanov, S.; Smirnov, A.; Clary, R.; Dettrick, S. [Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States); Deichuli, P.; Kondakov, A.; Murakhtin, S. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)

2012-10-15T23:59:59.000Z

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


361

The effect of anisotropic heat transport on magnetic islands in 3-D configurations  

SciTech Connect

An analytic theory of nonlinear pressure-induced magnetic island formation using a boundary layer analysis is presented. This theory extends previous work by including the effects of finite parallel heat transport and is applicable to general three dimensional magnetic configurations. In this work, particular attention is paid to the role of finite parallel heat conduction in the context of pressure-induced island physics. It is found that localized currents that require self-consistent deformation of the pressure profile, such as resistive interchange and bootstrap currents, are attenuated by finite parallel heat conduction when the magnetic islands are sufficiently small. However, these anisotropic effects do not change saturated island widths caused by Pfirsch-Schlueter current effects. Implications for finite pressure-induced island healing are discussed.

Schlutt, M. G.; Hegna, C. C. [University of Wisconsin-Madison, 1500 Engineering Drive, 510 ERB, Madison, Wisconsin 53706 (United States)

2012-08-15T23:59:59.000Z

362

Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations  

E-Print Network (OSTI)

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.

Alexej Weber; Holger Gies

2010-03-17T23:59:59.000Z

363

Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations  

E-Print Network (OSTI)

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.

Weber, Alexej

2010-01-01T23:59:59.000Z

364

High Level Trigger Configuration and Handling of Trigger Tables in the CMS Filter Farm  

Science Conference Proceedings (OSTI)

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.

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

2009-11-22T23:59:59.000Z

365

Secure Remote Control And Configuration Of The Fpx Platform In Gigabit Ethernet Environment  

E-Print Network (OSTI)

SECURE REMOTE CONTROL AND CONFIGURATION OF THE FPX PLATFORM IN GIGABIT ETHERNET ENVIRONMENT by Haoyu Song ADVISOR: Professor John W. Lockwood August, 2003 Saint Louis, Missouri Because of its flexibility and high performance, reconfigurable logic functions implemented on the Field-programable Port Extender (FPX ) are well suited for implementing network processing such as packet classification, filtering and intrusion detection functions. This project focuses on two key aspects of the FPX system. One is providing a Gigabit Ethernet interface by designing logic for a FPGA which is located on a line card. Address Resolution Protocol (ARP) packets are handled in hardware and Ethernet frames are processed and transformed into cells suitable for standard FPX application.

Saint Louis Missouri; Haoyu Song; Haoyu Song; Advisor Professor; John W. Lockwood

2003-01-01T23:59:59.000Z

366

ALTERNATE PADDLE CONFIGURATION FOR IMPROVED WEAR RESISTANCE IN THE SALTSTONE MIXER  

Science Conference Proceedings (OSTI)

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

Reigel, M.; Fowley, M.

2013-09-23T23:59:59.000Z

367

Light Water Reactor Sustainability Program Technical Basis Guide Describing How to Perform Safety Margin Configuration Risk Management  

SciTech Connect

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.

Curtis Smith; James Knudsen; Bentley Harwood

2013-08-01T23:59:59.000Z

368

The most compact scission configuration of fragments from low energy fission of U 234 and U 236  

E-Print Network (OSTI)

Using a time of flight technique, the maximal values of kinetic energy as a function of primary mass of fragments from low energy fission of U 234 and U 236 were measured by Signarbieux et al. From calculations of scission configurations, one can conclude that, for those two fissioning systems, the maximal value of total kinetic energy corresponding to fragmentations (Mo 104, Sn 130)) and (Mo 106, Sn 130), respectively, are equal to the available energies, and their scission configurations are composed by a spherical heavy fragment and a prolate light fragment both in their ground state.

Modesto Montoya

2008-12-09T23:59:59.000Z

369

Tomographic imaging system for measuring impurity line emission in a field-reversed configuration  

SciTech Connect

A 16 chord optical tomography system has been developed and implemented in the flux coil generated-field reversed configuration (FRC). The chords are arranged in two fans of eight, which cover {approx}35% of the vessel area at the midplane. Each illuminate separate photomultiplier tubes (PMTs) which are fitted with narrow band-pass filters. In this case, filters are centered at 434.8 nm to measure emission from singly ionized argon. PMT crosstalk is negligible. Background noise due to electron radiation and H{sub {gamma}} line radiation is <10% of argon emission. The spatial resolution of the reconstruction is 1.5 cm. Argon is introduced using a puff valve and tube designed to impart the gas into the system as the FRC is forming. Reconstruction of experimental data results in time-dependent, 2D emissivity profiles of the impurity ions. Analysis of these data show radial, cross-field diffusion to be in the range of 10-10{sup 3} m{sup 2}/s during FRC equilibrium.

Roche, T.; Heidbrink, W. W.; McWilliams, R. [University of California, Irvine, California 92697 (United States); Bolte, N.; Garate, E.; Wessel, F. [University of California, Irvine, California 92697 (United States); Tri Alpha Energy, Inc., Rancho Santa Margarita, California 92688 (United States)

2012-10-15T23:59:59.000Z

370

Visualizing multiphase flow and trapped fluid configurations in a model three-dimensional porous medium  

E-Print Network (OSTI)

We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the non-wetting oil and subsequent imbibition by the wetting fluid. During imbibition, the wetting fluid pinches off threads of oil in the narrow crevices of the medium, forming disconnected oil ganglia. Some of these ganglia remain trapped within the medium. By resolving the full 3D structure of the trapped ganglia, we show that the typical ganglion size, and the total amount of residual oil, decreases as the capillary number Ca increases; this behavior reflects the competition between the viscous pressure in the wetting fluid and the capillary pressure required to force oil through the pores of the medium. This work thus shows how pore-scale fluid dynamics influence the trapped fluid configurations in multiphase flow through 3D porous media.

Amber T. Krummel; Sujit S. Datta; Stefan Mnster; David A. Weitz

2013-01-21T23:59:59.000Z

371

Visualizing multiphase flow and trapped fluid configurations in a model three-dimensional porous medium  

E-Print Network (OSTI)

We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the non-wetting oil and subsequent imbibition by the wetting fluid. During imbibition, the wetting fluid pinches off threads of oil in the narrow crevices of the medium, forming disconnected oil ganglia. Some of these ganglia remain trapped within the medium. By resolving the full 3D structure of the trapped ganglia, we show that the typical ganglion size, and the total amount of residual oil, decreases as the capillary number Ca increases; this behavior reflects the competition between the viscous pressure in the wetting fluid and the capillary pressure required to force oil through the pores of the medium. This work thus shows how pore-scale fluid dynamics influence the trapped fluid configurations in multiphase flow through 3D porous media.

Krummel, Amber T; Mnster, Stefan; Weitz, David A; 10.1002/aic.14005

2013-01-01T23:59:59.000Z

372

Facility Configuration Study of the High Temperature Gas-Cooled Reactor Component Test Facility  

Science Conference Proceedings (OSTI)

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.

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

2008-04-01T23:59:59.000Z

373

A second-quantized red herring in full configuration-interaction Monte Carlo  

E-Print Network (OSTI)

Full configuration-interaction quantum Monte Carlo (FCI-QMC) is a Monte Carlo method that allows for exact solution of the ground state of fermionic Hamiltonians (albeit at exponential cost). FCI-QMC involves stochastic projection to the ground state, working in a basis of second- quantized determinants. While a Fermi sign problem still exists within FCI-QMC, it has been suggested that even without annihilation the sign problem is fundamentally distinct from that of more standard techniques such as diffusion Monte Carlo, as a result of working in determinant space. Furthermore, it is widely believed that this distinction is at least partially responsible for the success of FCI-QMC in mitigating the sign problem. In this paper, we show that second quantization is a red herring; the sign problem of FCI-QMC comes from the conventional instability to a bosonic ground state, and in fact FCI-QMC without annihilation can be equated step-by-step to a first-quantized algorithm where anti-symmetry comes only from initi...

Kolodrubetz, Michael

2012-01-01T23:59:59.000Z

374

Turbine cooling configuration selection and design optimization for the high-reliability gas turbine. Final report  

SciTech Connect

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.

Smith, M J; Suo, M

1981-04-01T23:59:59.000Z

375

CAVEMAN: Configuration And VErsion MANagement. User`s guide, v2.1.2  

SciTech Connect

The mission of the CAVEMAN project is to provide the tools for large code systems so that those who work on them can perform source control and configuration control on UNIX-based file servers, rather than the LC Crays. An outside product called cvs has been chosen as the underlying source control system. The initials stand for {open_quotes}Concurrent Versions System{close_quotes}. It is a freeware program that runs on most UNIX stations. To quote from the cvs man page: {open_quotes}cvs is a front end to the rcs revision control system which extends the notion of revision control from a collection of files in a single directory to a hierarchical collection of directories consisting of revision controlled files. These directories and files can be combined together to form a software release. cvs provides the functions necessary to manage these software releases and to control the concurrent editing of source files among multiple software developers.{close_quotes} While cvs may be run directly, there are several tasks in the LLNL environment that it seemed either safer or easier to automate. CAVEMAN provides the needed functionality, generally in the form of wrappers to cvs.

Dyer, K.M.

1993-03-12T23:59:59.000Z

376

Mixed Waste Treatment Cost Analysis for a Range of GeoMelt Vitrification Process Configurations  

Science Conference Proceedings (OSTI)

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.

Thompson, L. E.

2002-02-27T23:59:59.000Z

377

Configuration-interaction Monte Carlo method and its application to the trapped unitary Fermi gas  

E-Print Network (OSTI)

We develop a quantum Monte Carlo method to estimate the ground-state energy of a fermionic many-particle system in the configuration-interaction shell model approach. The fermionic sign problem is circumvented by using a guiding wave function in Fock space. The method provides an upper bound on the ground-state energy whose tightness depends on the choice of the guiding wave function. We argue that the antisymmetric geminal product class of wave functions is a good choice for guiding wave functions. We demonstrate our method for the trapped two-species fermionic cold atom system in the unitary regime of infinite scattering length using the particle-number projected Hartree-Fock-Bogoliubov wave function as the guiding wave function. We estimate the ground-state energy and energy-staggering pairing gap as a function of the number of particles. Our results compare favorably with exact numerical diagonalization results and with previous coordinate-space Monte Carlo calculations.

Mukherjee, Abhishek

2013-01-01T23:59:59.000Z

378

Configuration-interaction Monte Carlo method and its application to the trapped unitary Fermi gas  

E-Print Network (OSTI)

We develop a quantum Monte Carlo method to estimate the ground-state energy of a fermionic many-particle system in the configuration-interaction shell model approach. The fermionic sign problem is circumvented by using a guiding wave function in Fock space. The method provides an upper bound on the ground-state energy whose tightness depends on the choice of the guiding wave function. We argue that the antisymmetric geminal product class of wave functions is a good choice for guiding wave functions. We demonstrate our method for the trapped two-species fermionic cold atom system in the unitary regime of infinite scattering length using the particle-number projected Hartree-Fock-Bogoliubov wave function as the guiding wave function. We estimate the ground-state energy and energy-staggering pairing gap as a function of the number of particles. Our results compare favorably with exact numerical diagonalization results and with previous coordinate-space Monte Carlo calculations.

Abhishek Mukherjee; Y. Alhassid

2013-04-05T23:59:59.000Z

379

Relations between three-point configuration space shear and convergence statistics  

E-Print Network (OSTI)

With the growing interest in and ability of using weak lensing studies to probe the non-Gaussian properties of the matter density field, there is an increasing need for the study of suitable statistical measures, e.g. shear three-point statistics. In this paper we establish the relations between the three-point configuration space shear and convergence statistics, which are an important missing link between different weak lensing three-point statistics and provide an alternative way of relating observation and theory. The method we use also allows us to derive the relations between other two- and three-point correlation functions. We show the consistency of the relations obtained with already established results and demonstrate how they can be evaluated numerically. As a direct application, we use these relations to formulate the condition for E/B-mode decomposition of lensing three-point statistics, which is the basis for constructing new three-point statistics which allow for exact E/B-mode separation. Our work applies also to other two-dimensional polarization fields such as that of the Cosmic Microwave Background.

X. Shi; P. Schneider; B. Joachimi

2011-05-11T23:59:59.000Z

380

Risk and Work Configuration Management as a Function of Integrated Safety Management  

Science Conference Proceedings (OSTI)

National Security Technologies, LLC (NSTec), has established a work management program and corresponding electronic Facilities and Operations Management Information System (e-FOM) to implement Integrated Safety Management (ISM). The management of work scopes, the identification of hazards, and the establishment of implementing controls are reviewed and approved through electronic signatures. Through the execution of the program and the implementation of the electronic system, NSTec staff work within controls and utilize feedback and improvement process. The Integrated Work Control Manual further implements the five functions of ISM at the Activity level. By adding the Risk and Work Configuration Management program, NSTec establishes risk acceptance (business and physical) for liabilities within the performance direction and work management processes. Requirements, roles, and responsibilities are specifically identified in the program while e-FOM provides the interface and establishes the flowdown from the Safety Chain to work and facilities management processes to company work-related directives, and finally to Subject Matter Expert concurrence. The Program establishes, within the defined management structure, management levels for risk identification, risk mitigation (controls), and risk acceptance (business and physical) within the Safety Chain of Responsibility. The Program also implements Integrated Safeguards and Security Management within the NSTec Safety Chain of Responsibility. Once all information has been entered into e-FOM, approved, and captured as data, the information becomes searchable and sortable by hazard, location, organization, mitigating controls, etc.

Lana Buehrer, Michele Kelly, Fran Lemieux, Fred Williams

2007-11-30T23:59:59.000Z

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


381

Major electron events and coronal magnetic configurations of the related solar active regions  

E-Print Network (OSTI)

A statistical survey of 26 major electron events during the period 2002 February through the end of solar cycle 23 is presented. We have obtained electron solar onset times and the peak flux spectra for each event by fitting to a powerlaw spectrum truncated by an exponential high-energy tail. We also derived the coronal magnetic configurations of the related solar active regions (ARs) from the potential-field source-surface model. It is found that (1) 10 of the 11 well-connected open field-line events are prompt events whose solar onset times coincide with the maxima of flare emission and 13 of the 14 closed field-line events are delayed events. (2) A not-wellconnected open field-line event and one of the closed field-line events are prompt events, they are both associated with large-scale coronal disturbances or dimming. (3)An averaged harder spectrum is found in open field-line events compared with the closed ones. Specifically, the averaged spectral index is of 1.6 +/- 0.3 in open field-line events and of ...

Li, C; Matthews, S A; Dai, Y; Tang, Y H

2013-01-01T23:59:59.000Z

382

Dye laser amplifier including an improved window configuration for its dye beam  

DOE Patents (OSTI)

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.

O' Neil, Richard W. (Pleasanton, CA); Davin, James M. (Livermore, CA)

1992-01-01T23:59:59.000Z

383

Dye laser amplifier including an improved window configuration for its dye beam  

DOE Patents (OSTI)

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.

O' Neil, R.W.; Davin, J.M.

1992-12-01T23:59:59.000Z

384

The Star, A Dynamically Configured Dataflow Director for Real Time Control  

SciTech Connect

The CEBAF accelerator is controlled by an automated system consisting of 50 computers connected to machine hardware and another 20 to 30 computers used for displaying machine data. The control system communication software must manage the inter-machine communication of those computers. Each of the different segments of software that make up the machine control system is treated as data sources and data sinks, with a single process mediating the transfer of all data between any data source/data sink pair. The mediating process is called the Star. This dynamically configured process keeps track of all available machine data posted by data sources and of all data requested by data sinks. Data transmission rates through the Star are kept low by sending only data that is requested by other control software, and then only when the value of the data changes. The system is entirely response-driven, with the Star process taking action only at the request of either a data source or a sink. The software for the communication is written using standard C code and TCP/IP sockets, making the communication platform independent.

Matt Bickley; J. Kewisch

1993-05-01T23:59:59.000Z

385

Effects of blade configurations on flow distribution and power output of a Zephyr vertical axis wind turbine  

Science Conference Proceedings (OSTI)

Numerical simulations with FLUENT software were conducted to investigate the fluid flow through a novel vertical axis wind turbine (VAWT). Simulation of flow through the turbine rotor was performed with the aim of predicting the performance characteristics ... Keywords: blade configuration, power output, rotor, simulation, vertical axis wind turbine

J. O. Ajedegba; G. F. Naterer; M. A. Rosen; E. Tsang

2008-02-01T23:59:59.000Z

386

Vicious and virtuous circles of offshoring attitudes and relational behaviours. A configurational study of German IT developers  

Science Conference Proceedings (OSTI)

Prior research has shown that the success of offshoring is affected by relational behaviours of the employees involved in an offshoring collaboration. However, hardly anything is known about the attitudes that onshore colleagues hold towards offshoring, ... Keywords: IT, attitudes, configuration, offshoring, transnational, vicious circles

Angelika Zimmermann; Katharina Raab; Livio Zanotelli

2013-01-01T23:59:59.000Z

387

Abstract--Power system currents and voltages magnitudes are time variant due to continual changes in system configuration  

E-Print Network (OSTI)

corresponding matrix form. Another possible application is the forecasting of the electrical signals behavior changes in system configuration and load conditions. This paper deals with the statistical description of measured electrical signals. A matrix representation is chosen in order to preserve the information about

Paris-Sud XI, Université de

388

An exact solution for finding minimum recombinant haplotype configurations on pedigrees with missing data by integer linear programming  

Science Conference Proceedings (OSTI)

We study the problem of reconstructing haplotype configurations from genotypes on pedigree data with missing alleles under the Mendelian law of inheritance and the minimum recombination principle, which is important for the construction of haplotype ... Keywords: branch-and-bound algorithm, haplotyping, integer linear programming, missing data imputation, pedigree analysis, recombination

Jing Li; Tao Jiang

2004-03-01T23:59:59.000Z

389

Preparation of the spacer for narrow electrode gap configuration in ionization-based gas sensor  

Science Conference Proceedings (OSTI)

Carbon nanotubes (CNTs) have started to be developed as the sensing element for ionization-based gas sensors due to the demand for improved sensitivity, selectivity, stability and other sensing properties beyond what can be offered by the conventional ones. Although these limitations have been overcome, the problems still remain with the conventional ionization-based gas sensors in that they are bulky and operating with large breakdown voltage and high temperature. Recent studies have shown that the breakdown voltage can be reduced by using nanostructured electrodes and narrow electrode gap. Nanostructured electrode in the form of aligned CNTs array with evenly distributed nanotips can enhance the linear electric field significantly. The later is attributed to the shorter conductivity path through narrow electrode gap. The paper presents the study on the design consideration in order to realize ionization based gas sensor using aligned carbon nanotubes array in an optimum sensor configuration with narrow electrode gap. Several deposition techniques were studied to deposit the spacer, the key component that can control the electrode gap. Plasma spray deposition, electron beam deposition and dry oxidation method were employed to obtain minimum film thickness around 32 {mu}m. For plasma spray method, sand blasting process is required in order to produce rough surface for strong bonding of the deposited film onto the surface. Film thickness, typically about 39 {mu}m can be obtained. For the electron beam deposition and dry oxidation, the film thickness is in the range of nanometers and thus unsuitable to produce the spacer. The deposited multilayer film consisting of copper, alumina and ferum on which CNTs array will be grown was found to be removed during the etching process. This is attributed to the high etching rate on the thin film which can be prevented by reducing the rate and having a thicker conductive copper film.

Saheed, Mohamed Shuaib Mohamed; Mohamed, Norani Muti; Burhanudin, Zainal Arif [Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh, Perak. (Malaysia); Fundamental and Applied Science, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh, Perak. (Malaysia); Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh, Perak. (Malaysia)

2012-09-26T23:59:59.000Z

390

The Astromag Superconducting Magnet Facility Configured for a FreeFlying Satellite  

DOE Green Energy (OSTI)

ASTROMAG is a particle astrophysics facility that was originally configured for the Space Station. The heart of the ASTROMAG facility is a large superconducting magnet which is cooled using superfluid helium. The task of resizing the facility so that it will fly in a satellite in. a high angle of inclination orbit is driven by the launch weight capability of the launch rocket and the desire to be able to do nearly the same physics as the Space Station version of ASTROMAG. In order to reduce the launch weight, the magnet and its cryogenic system had to be downsized, yet the integrated field generated by the magnet in the particle detectors has to match the Space Station version of the magnet. The use of aluminum matrix superconductor and oriented composite materials in the magnet insulation permits one to achieve this goal. The net magnetic dipole moment from the ASTROMAG magnet must be small to minimize the torque due to interaction with the earth's magnetic field. The ASTROMAG magnet consists of identical two coils 1.67 meters apart. The two coils are connected in series in persistent mode. Each coil is designed to carry 2.34 million ampere turns. Both coils are mounted on the same magnetic axis and they operate at opposite polarity. This reduces the dipole moment by a factor of more than 1000. This is tolerable for the Space Station version of the magnet. A magnet operating on a free flying satellite requires additional compensation. This report presents the magnet parameters of a free flying version of ASTROMAG and the parameters of the space cryogenic system for the magnet.

Green, M.A.; Smoot, George F.

1991-06-01T23:59:59.000Z

391

A study of shock mitigating materials in a split Hopkinson bar configuration. Phase 1  

Science Conference Proceedings (OSTI)

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 systems. As part of the investigation of packaging techniques, a two phase study of shock mitigating materials is being conducted. The purpose of the first phase reported here is to examine the performance of a joint that consists of shock mitigating material sandwiched in between steel and to compare the performance of the shock mitigating materials. A split Hopkinson bar experimental configuration simulates this joint and has been used to study the shock mitigating characteristics of seventeen, unconfined materials. The nominal input for these tests is an incident compressive wave with 50 fps peak (1,500 {micro}{var_epsilon} peak) amplitude and a 100 {micro}s duration (measured at 10% amplitude).

Bateman, V.I.; Brown, F.A.; Hansen, N.R.

1998-06-01T23:59:59.000Z

392

Evaluation of Collector Well Configurations to Model Hydrodynamics in Riverbank Filtration and Groundwater Remediation  

E-Print Network (OSTI)

Collector well designs are necessary to maximize groundwater uptake and riverbank filtration without negatively impacting an aquifer. Unfortunately, there is a lack of information and research regarding the implementation of collector well design parameters. In the past, collector well installation was too costly, but recent advances in well technology have made collector wells more cost effective. This research will contribute a set of guidelines to optimize riverbank filtration and groundwater remediation. This study models the hydrodynamics surrounding collector well configurations in riverbank filtration and groundwater remediation. Visual Modflow was utilized to run a variety of numerical models to test four areas: flux along the laterals of a collector well, collector well interactions with a river, collector well yield, and collector well remediation capability. The two design parameters investigated were lateral length (25 m, 50 m, and 100 m) and number of laterals (3 and 4). The lateral flux tests confirm flux increases towards the terminal end of each lateral and pumping rate is the controlling factor in flux amount obtained along the laterals. The analysis of the flux-river interaction shows the main factor in determining flux amount is the initial river geometry, followed by the pumping rate, regional background flow, and collector well design, respectively. The models suggest that the 4-lateral collector well design is more effective than the 3-lateral design and in addition, 100 meter length laterals provide the highest amount of yield with the least amount of drawdown. The remediation tests investigate the application of vertical well equations to evaluate collector well designs in two areas: minimum pumping rate to capture line source of particles and first arrival time of particles. The remediation models show 100 meter length laterals provide both the lowest pumping rate and the highest residence time with the surrounding aquifer for maximum remediation. Ultimately, these models provide basic design guidelines and explain which designs are most effective, depending on the collector well purpose.

De Leon, Tiffany Lucinda

2010-08-01T23:59:59.000Z

393

CRITICAL ASSUMPTIONS IN THE F-TANK FARM CLOSURE OPERATIONAL DOCUMENTATION REGARDING WASTE TANK INTERNAL CONFIGURATIONS  

SciTech Connect

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.

Hommel, S.; Fountain, D.

2012-03-28T23:59:59.000Z

394

Analyzing the Effects of Climate and Thermal Configuration on Community Energy Storage Systems (Presentation)  

DOE Green Energy (OSTI)

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.

Neubauer, J.; Pesaran, A.; Coleman, D.; Chen, D.

2013-10-01T23:59:59.000Z

395

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

E-Print Network (OSTI)

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 that of a traditional covalent bond. The structure of molecular complexes such as those formed between a rare gas and a hydrogen halide, Rg:HX where Rg is a rare gas (Rg=Ne, Ar and Kr) and HX (X=F, Cl, Br and I) can be determined directly and accurately. The center of mass interaction distance, RCM, as well as the angle of the hydrogen halide is determined, along with direct evaluation of the intermolecular vibrations as well as accurate isomerization energies between the hydrogen bound and van der Waals forms. The accuracy of the frequency determination of rovibrational transitions using the submillimeter spectrometer is also evaluated by direct comparison with the state-of-theart pulsed nozzle Fourier transform microwave spectrometer, and this accuracy is estimated to be less than 1 kHz at 300 GHz. The tunneling or geared bending vibration of a dimer of hydrogen bromide or hydrogen iodide has been investigated. The selection rules, nuclear statistics and intensity alternation for transitions observed in these dimmers, which is a consequence of interchanging two identical nuclei in the low frequency geared bending vibration of the molecular complex, are reported. Furthermore, the rotation and quadrupole coupling constants are used to determine a vibrationally averaged structure of the complex. The energy of the low frequency bending vibration can then be compared with ab initio based potential energy surfaces. A study of the multiple isomeric forms of the molecular complex OC:HI is also presented. Multiple isotopic substitutions are used to determine the relevant ground state structures and data reported evidence for an anomalous isotope effect supporting a ground state isotopic isomerization effect. All spectroscopic data that has been reported here has been additionally used to subsequently model and generate vibrationally complete morphed potential energy surfaces that are capable or reproducing the experimentally observed data. The utility of this procedure is evaluated on a predicative basis and comparisons made with newly observed data.

McElmurry, Blake Anthony

2008-12-01T23:59:59.000Z

396

Effect of Channel Configurations for Tritium Transfer in Printed Circuit Heat Exchangers  

DOE Green Energy (OSTI)

The Next Generation Nuclear Plant (NGNP), a very High temperature Gas-Cooled Reactor (VHTR) concept, will provide the first demonstration of a closed-loop Brayton cycle at a commercial scale of a few hundred megawatts electric and hydrogen production. The power conversion system (PCS) for the NGNP will take advantage of the significantly higher reactor outlet temperatures of the VHTR to provide higher efficiencies than can be achieved in the current generation of light water reactors. Besides demonstrating a system design that can be used directly for subsequent commercial deployment, the NGNP will demonstrate key technology elements that can be used in subsequent advanced power conversion systems for other Generation IV reactors. In anticipation of the design, development and procurement of an advanced power conversion system for the NGNP, the system integration of the NGNP and hydrogen plant was initiated to identify the important design and technology options that must be considered in evaluating the performance of the proposed NGNP. In the VHTR system, an intermediate heat exchanger (IHX), which transfers heat from the reactor core to the electricity or hydrogen production system is one key component, and its effectiveness is directly related to the system overall efficiency. In the VHTRs, the gas fluids used for coolant generally have poor heat transfer capability, so it requires very large surface area for a given condition. For this reason, a compact heat exchanger (CHE), which is widely used in industry especially for gasto-gas or gas-to-liquid heat exchange is considered as a potential candidate for an IHX replacing the classical shell and tube type heat exchanger. A compact heat exchanger is arbitrary referred to be a heat exchanger having a surface area density greater than 700 m2/m3. The compactness is usually achieved by fins and micro-channels, and leads to the enormous heat transfer enhancement and size reduction. The surface area density is the total heat transfer area divided by the volume of the heat exchanger. In the case of PCHE units, the heat transfer surface area density may be as high as 2,500 m2/m3. This high compactness implies an appreciable reduction in material reducing cost. In this study, heat transfer and tritium penetration analyses have been performed for two different channel configurations of the PCHE; (1) standard and (2) off-set. One of the goals of this study was to determine whether offsetting the hot and cold streams would significantly reduce the tritium flux, and whether or not it would affect the heat transfer significantly.

Chang Oh; Eung Kim; Robert Shrake; Mike Patterson

2009-05-01T23:59:59.000Z

397

Single Membrane Reactor Configuration for Separation of Hydrogen, Carbon Dioxide and Hydrogen Sulfide  

DOE Green Energy (OSTI)

The objective of the project was to develop a novel complementary membrane reactor process that can consolidate two or more downstream unit operations of a coal gasification system into a single module for production of a pure stream of hydrogen and a pure stream of carbon dioxide. The overall goals were to achieve higher hydrogen production efficiencies, lower capital costs and a smaller overall footprint than what could be achieved by utilizing separate components for each required unit process/operation in conventional coal-to-hydrogen systems. Specifically, this project was to develop a novel membrane reactor process that combines hydrogen sulfide removal, hydrogen separation, carbon dioxide separation and water-gas shift reaction into a single membrane configuration. The carbon monoxide conversion of the water-gas-shift reaction from the coal-derived syngas stream is enhanced by the complementary use of two membranes within a single reactor to separate hydrogen and carbon dioxide. Consequently, hydrogen production efficiency is increased. The single membrane reactor configuration produces a pure H{sub 2} product and a pure CO{sub 2} permeate stream that is ready for sequestration. This project focused on developing a new class of CO{sub 2}-selective membranes for this new process concept. Several approaches to make CO{sub 2}-selective membranes for high-temperature applications have been tested. Membrane disks using the technique of powder pressing and high temperature sintering were successfully fabricated. The powders were either metal oxide or metal carbonate materials. Experiments on CO{sub 2} permeation testing were also performed in the temperature range of 790 to 940 C for the metal carbonate membrane disks. However, no CO{sub 2} permeation rate could be measured, probably due to very slow CO{sub 2} diffusion in the solid state carbonates. To improve the permeation of CO{sub 2}, one approach is to make membranes containing liquid or molten carbonates. Several different types of dual-phase membranes were fabricated and tested for their CO{sub 2} permeation in reducing conditions without the presence of oxygen. Although the flux was quite low, on the order of 0.01-0.001 cc STP/cm{sup 2}/min, the selectivity of CO{sub 2}/He was almost infinite at temperatures of about 800 C. A different type of dual-phase membrane prepared by Arizona State University (ASU) was also tested at GTI for CO{sub 2} permeation. The measured CO{sub 2} fluxes were 0.015 and 0.02 cc STP/cm{sup 2}/min at 750 and 830 C, respectively. These fluxes were higher than the previous flux obtained ({approx}0.01 cc STP/cm{sup 2}/min) using the dual-phase membranes prepared by GTI. Further development in membrane development should be conducted to improve the CO{sub 2} flux. ASU has also focused on high temperature permeation/separation experiments to confirm the carbon dioxide separation capabilities of the dual-phase membranes with La{sup 0.6}Sr{sub 0.4}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} (LSCF6482) supports infiltrated with a Li/Na/K molten carbonate mixture (42.5/32.5/25.0 mole %). The permeation experiments indicated that the addition of O{sub 2} does improve the permeance of CO{sub 2} through the membrane. A simplified membrane reactor model was developed to evaluate the performance of the process. However, the simplified model did not allow the estimation of membrane transport area, an important parameter for evaluating the feasibility of the proposed membrane reactor technology. As a result, an improved model was developed. Results of the improved membrane reactor model show that the membrane shift reaction has promise as a means to simplify the production of a clean stream of hydrogen and a clean stream of carbon dioxide. The focus of additional development work should address the large area required for the CO{sub 2} membrane as identified in the modeling calculations. Also, a more detailed process flow diagram should be developed that includes integration of cooling and preheating feed streams as well as particulate removal so that stea

Micheal Roberts; Robert Zabransky; Shain Doong; Jerry Lin

2008-05-31T23:59:59.000Z

398

LS-266 OPTIMIZATION OF FOUR-BUTTON BEAM POSITION MONITOR CONFIGURATION FOR SMALL-GAP VACUUM CHAMBERS  

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

LS-266 LS-266 OPTIMIZATION OF FOUR-BUTTON BEAM POSITION MONITOR CONFIGURATION FOR SMALL-GAP VACUUM CHAMBERS S. H. Kim March 27, 1998 Summary - Induced charges on a four-button beam position monitor (BPM) system attached on a beam chamber of narrow rectangular cross sections are calculated as a 2-D electrostatic problem of image charges. The calculation shows that for a narrow chamber of width/height (2w/2h) >> 1, over 90% of the induced charges are distributed within a distance of 2h from the charged beam position in the direction of the chamber width. Therefore, a four-button system with a button diameter of (2 ~ 2.5)h and no button offset from the beam position is the most efficient configuration. The four-button BPMs used for 8-mm and 5-mm chambers in the APS have relatively low sensitivities because the button locations are outside

399

FINAL REPORT - HYBRID-MIXING TESTS SUPPORTING THE CONCENTRATE RECEIPT VESSEL (CRV-VSL-00002A/2B) CONFIGURATION  

Science Conference Proceedings (OSTI)

The Savannah River National Laboratory (SRNL) has performed scaled physical modeling of Pulse Jet Mixing Systems applicable to the Concentrate Receipt Vessel (CRV) of Hanford's Waste Treatment Plant (WTP) as part of the overall effort to validate pulse jet mixer (PJM) mixing in WTP vessels containing non-Newtonian fluids. The strategy developed by the Pulse Jet Mixing Task Team was to construct a quarter-scale model of the CRV, use a clear simulant to understand PJM mixing behavior, and down-select from a number of PJM configurations to a ''best design'' configuration. This ''best design'' would undergo final validation testing using a particulate simulant that has rheological properties closely similar to WTP waste streams. The scaled PJM mixing tests were to provide information on the operating parameters critical for the uniform movement (total mobilization) of these non-Newtonian slurries. Overall, 107 tests were performed during Phase I and Phase II testing.

GUERRERO, HECTORN.

2004-09-01T23:59:59.000Z

400

Investigation of lower hybrid wave coupling and current drive experiments at different configurations in experimental advanced superconducting tokamak  

SciTech Connect

Using a 2 MW 2.45 GHz lower hybrid wave (LHW) system installed in experimental advanced superconducting tokamak, we have systematically carried out LHW-plasma coupling and lower hybrid current drive experiments in both divertor (double null and lower single null) and limiter plasma configuration with plasma current (I{sub p}) {approx} 250 kA and central line averaged density (n{sub e}) {approx} 1.0-1.3 x 10{sup 19} m{sup -3} recently. Results show that the reflection coefficient (RC) first is flat up to some distance between plasma and LHW grill, and then increases with the distance. Studies indicate that with the same plasma parameters, the best coupling is obtained in the limiter case (with plasma leaning on the inner wall), followed by the lower single null, and the one with the worst coupling is the double null configuration, explained by different magnetic connection length. The RCs in the different poloidal rows show that they have different coupling characteristics, possibly due to local magnetic connection length. Current drive efficiency has been investigated by a least squares fit with N{sub //}{sup peak}=2.1, where N{sub //}{sup peak} is the peak value of parallel refractive index of the launched wave. Results show that there is no obvious difference in the current drive efficiency between double null and lower single null cases, whereas the efficiency is somewhat small in the limiter configuration. This is in agreement with the ray tracing/Fokker-Planck code simulation by LUKE/C3PO and can be interpreted by the power spectrum up-shift factor in different plasma configurations. A transformer recharge is realized with {approx}0.8 MW LHW power and the energy conversion efficiency from LHW to poloidal field energy is about 2%.

Ding, B. J.; Qin, Y. L.; Li, W. K.; Li, M. H.; Kong, E. H.; Zhang, L.; Wang, M.; Xu, H. D.; Hu, H. C.; Xu, G. S.; Shan, J. F.; Liu, F. K.; Zhao, Y. P.; Wan, B. N.; Li, J. G.; Group, EAST [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Ekedahl, A.; Peysson, Y.; Decker, J. [CEA, IRFM, F-13108 Saint Paul-Lez-Durance (France)

2011-08-15T23:59:59.000Z

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


401

Engineering Analysis of Intermediate Loop and Process Heat Exchanger Requirements to Include Configuration Analysis and Materials Needs  

SciTech Connect

The need to locate advanced hydrogen production facilities a finite distance away from a nuclear power source necessitates the need for an intermediate heat transport loop (IHTL). This IHTL must not only efficiently transport energy over distances up to 500 meters but must also be capable of operating at high temperatures (>850oC) for many years. High temperature, long term operation raises concerns of material strength, creep resistance and general material stability (corrosion resistance). IHTL design is currently in the initial stages. Many questions remain to be answered before intelligent design can begin. The report begins to look at some of the issues surrounding the main components of an IHTL. Specifically, a stress analysis of a compact heat exchanger design under expected operating conditions is reported. Also the results of a thermal analysis performed on two ITHL pipe configurations for different heat transport fluids are presented. The configurations consist of separate hot supply and cold return legs as well as annular design in which the hot fluid is carried in an inner pipe and the cold return fluids travels in the opposite direction in the annular space around the hot pipe. The effects of insulation configurations on pipe configuration performance are also reported. Finally, a simple analysis of two different process heat exchanger designs, one a tube in shell type and the other a compact or microchannel reactor are evaluated in light of catalyst requirements. Important insights into the critical areas of research and development are gained from these analyses, guiding the direction of future areas of research.

T.M. Lillo; R.L. Williamson; T.R. Reed; C.B. Davis; D.M. Ginosar

2005-09-01T23:59:59.000Z

402

PROPAGATION DES ONDES LASTIQUES DE SURFACE Atlas des configurations calcules pour le quartz, le tantalate de lithium,  

E-Print Network (OSTI)

, le tantalate de lithium, le niobate de lithium et le vanado-sulfure de thallium en ce qui concerne'ensemble des configurations possibles des matériaux classiques (quartz, niobate de lithium et tantalate de lithium) ainsi que d'un matériau récemment signalé le vanado-sulfure de thallium (Tl3VS4). La propagation

Paris-Sud XI, Université de

403

Program on Technology Innovation: Programmatic Risk Assessment Future Fossil- and Biomass-Fueled Power Generation System Configurations  

Science Conference Proceedings (OSTI)

Recent and upcoming regulatory activities will have a major impact on power plant design over the next few decades. To address various environmental concerns, including climate change, emissions of specific air toxics and waste-to-energy goals, a number of different power plant configurations have been proposed involving differences in fuel type, boiler designs and emissions control technology. The Electric Power Research Institute (EPRI) commissioned Gradient to evaluate risks associated with ...

2012-12-20T23:59:59.000Z

404

Relativistic configuration-interaction calculations of the n=3-3 transition energies in highly charged tungsten ions  

SciTech Connect

A large-scale relativistic configuration-interaction calculation of the n=3-3 transition energies for Ne- to Ar-like tungsten is carried out. The calculation is based on the relativistic no-pair Hamiltonian and uses finite B-spline orbitals in a cavity as basis functions. Quantum electrodynamic and mass polarization corrections are also included. Results are compared with other theories and with experiment, and are generally found to be more reliable than previous theoretical predictions.

Chen, M. H.; Cheng, K. T. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

2011-07-15T23:59:59.000Z

405

CRITICALITY CALCULATION FOR THE MOST REACTIVE DEGRADED CONFIGURATIONS OF THE FFTF SNF CODISPOSAL WP CONTAINING AN INTACT IDENT-69 CONTAINER  

Science Conference Proceedings (OSTI)

The objective of this calculation is to perform additional degraded mode criticality evaluations of the Department of Energy's (DOE) Fast Flux Test Facility (FFTF) Spent Nuclear Fuel (SNF) codisposed in a 5-Defense High-Level Waste (5-DHLW) Waste Package (WP). The scope of this calculation is limited to the most reactive degraded configurations of the codisposal WP with an almost intact Ident-69 container (breached and flooded but otherwise non-degraded) containing intact FFTF SNF pins. The configurations have been identified in a previous analysis (CRWMS M&O 1999a) and the present evaluations include additional relevant information that was left out of the original calculations. The additional information describes the exact distribution of fissile material in each container (DOE 2002a). The effects of the changes that have been included in the baseline design of the codisposal WP (CRWMS M&O 2000) are also investigated. The calculation determines the effective neutron multiplication factor (k{sub eff}) for selected degraded mode internal configurations of the codisposal waste package. These calculations will support the demonstration of the technical viability of the design solution adopted for disposing of MOX (FFTF) spent nuclear fuel in the potential repository. This calculation is subject to the Quality Assurance Requirements and Description (QARD) (DOE 2002b) per the activity evaluation under work package number P6212310M2 in the technical work plan TWP-MGR-MD-000010 REV 01 (BSC 2002).

D.R. Moscalu

2002-08-28T23:59:59.000Z

406

Utilization of Minor Actinides as a Fuel Component for Ultra-Long Life Bhr Configurations: Designs, Advantages and Limitations  

SciTech Connect

This project assessed the advantages and limitations of using minor actinides as a fuel component to achieve ultra-long life Very High Temperature Reactor (VHTR) configurations. Researchers considered and compared the capabilities of pebble-bed and prismatic core designs with advanced actinide fuels to achieve ultra-long operation without refueling. Since both core designs permit flexibility in component configuration, fuel utilization, and fuel management, it is possible to improve fissile properties of minor actinides by neutron spectrum shifting through configuration adjustments. The project studied advanced actinide fuels, which could reduce the long-term radio-toxicity and heat load of high-level waste sent to a geologic repository and enable recovery of the energy contained in spent fuel. The ultra-long core life autonomous approach may reduce the technical need for additional repositories and is capable to improve marketability of the Generation IV VHTR by allowing worldwide deployment, including remote regions and regions with limited industrial resources. Utilization of minor actinides in nuclear reactors facilitates developments of new fuel cycles towards sustainable nuclear energy scenarios.

Dr. Pavel V. Tsvetkov

2009-05-20T23:59:59.000Z

407

Salt Processing Through Ion Exchange at the Savannah River Site Selection of Exchange Media and Column Configuration - 9198  

SciTech Connect

The Department of Energy (DOE) has developed, modeled, and tested several different ion exchange media and column designs for cesium removal. One elutable resin and one non-elutable resin were considered for this salt processing application. Deployment of non-elutable Crystalline Silicotitanate and elutable Resorcinol Formaldehyde in several different column configurations were assessed in a formal Systems Engineering Evaluation (SEE). Salt solutions were selected that would allow a grouping of non-compliant tanks to be closed. Tests were run with the elutable resin to determine compatibility with the resin configuration required for an in-tank ion exchange system. Models were run to estimate the ion exchange cycles required with the two resins in several column configurations. Material balance calculations were performed to estimate the impact on the High Level Waste (HLW) system at the Savannah River Site (SRS). Conceptual process diagrams were used to support the hazard analysis. Data from the hazard analysis was used to determine the relative impact on safety. This report will discuss the technical inputs, SEE methods, results and path forward to complete the technical maturation of ion exchange.

Spires, Renee; Punch, Timothy; McCabe, Daniel

2009-02-11T23:59:59.000Z

408

For what number of cars must self organization occur in the Biham-Middleton-Levine traffic model from any possible starting configuration?  

E-Print Network (OSTI)

For any initial configuration of fewer than N/2 cars the BML model will self organize to attain speed one. On the other hand, there is a configuration of size m in which no car can move if and only if m is at least 2N.

Tim D. Austin; Itai Benjamini

2006-07-31T23:59:59.000Z

409

How to configure a Windows 7 computer (that is NOT part of the UTMBUSERSM domain) to connect to the UTMBa wireless network  

E-Print Network (OSTI)

How to configure a Windows 7 computer (that is NOT part of the UTMBUSERSM domain) to connect on the "Security" tab 8. Click on "Settings" button in middle of window. Page 3 of 6 12/2/2011mhtml of the screen and then click "Configure" towards the bottom of the window. 10. Uncheck the box next

Wood, James B.

410

In-line thermoelectric module - Energy Innovation Portal  

Energy Analysis; Energy Storage; Geothermal; ... TECHNICAL FIELD The present invention relates generally to means for converting thermal energy to ele ...

411

IN-LINE CHEMICAL SENSOR DEPLOYMENT IN A TRITIUM PLANT  

SciTech Connect

The Savannah River Tritium Plant (TP) relies on well understood but aging sensor technology for process gas analysis. Though new sensor technologies have been brought to various readiness levels, the TP has been reluctant to install technologies that have not been tested in tritium service. This gap between sensor technology development and incorporating new technologies into practical applications demonstrates fundamental challenges that exist when transitioning from status quo to state-of-the-art in an extreme environment such as a tritium plant. These challenges stem from three root obstacles: 1) The need for a comprehensive assessment of process sensing needs and requirements; 2) The lack of a pick-list of process-compatible sensor technologies; and 3) The need to test technologies in a tritium-contaminated process environment without risking production. At Savannah River, these issues are being addressed in a two phase project. In the first phase, TP sensing requirements were determined by a team of process experts. Meanwhile, Savannah River National Laboratory sensor experts identified candidate technologies and related them to the TP processing requirements. The resulting roadmap links the candidate technologies to actual plant needs. To provide accurate assessments of how a candidate sensor technology would perform in a contaminated process environment, an instrument demonstration station was established within a TP glove box. This station was fabricated to TP process requirements and designed to handle high activity samples. The combination of roadmap and demonstration station provides the following assets: ? Creates a partnership between the process engineers and researchers for sensor selection, maturation, and insertion, ? Selects the right sensors for process conditions ? Provides a means for safely inserting new sensor technology into the process without risking production, and ? Provides a means to evaluate off normal occurrences where and when they occur. This paper discusses the process to identify and demonstrate new sensor technologies for the Savannah River TP.

Tovo, L.; Wright, J.; Torres, R.; Peters, B.

2013-10-02T23:59:59.000Z

412

Modular In-Line Fluid Analysis System - PNNL: Available ...  

... Typical limits for large industrial diesel engines, or gas turbines (c) Requires 241Americium source (see specifications below) Infrared Analysis ...

413

XHTML documents with inline, policy-aware provenance  

E-Print Network (OSTI)

Constructing code that aids users in making information policy decisions in a decentralized Web-based environment will require seamless integration between document content and metadata. A system of embedding and reasoning ...

Jones, Harvey C., III

2007-01-01T23:59:59.000Z

414

Hycast SIR- A Unique Concept for Inline Melt Refining  

Science Conference Proceedings (OSTI)

Abstract Scope, Hycast AS, a Hydro Aluminium subsidiary, developed in the beginning ... gas (Argon) consumption, a drain free reactor and only 2 rotors in operation for a ... to Promote Energy Efficiency during Final Heating in Aluminum Furnaces ... for Road Transportation of Liquid Aluminum Casting Alloys during Holding.

415

Surface relief grating in azo-polymer obtained for s-s polarization configuration of the writing beams  

Science Conference Proceedings (OSTI)

The paper reports on the formation of the surface relief gratings in thin films of the azobenzene-functionalized polymer. We evidence that the efficiency of the formation process of the surface relief gratings strongly depends on the length of the main polymer chains in the case of the s-s configuration. The explanation of this relationship is given and is based on the revealing of the differences in the ability of the motion of the main chain which is strictly related to its length.

Sobolewska, Anna; Bartkiewicz, Stanislaw [Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland)

2012-10-29T23:59:59.000Z

416

Surface relief grating in azo-polymer obtained for s-s polarization configuration of the writing beams  

Science Conference Proceedings (OSTI)

The paper reports on the formation of the surface relief gratings in thin films of the azobenzene-functionalized polymer. We evidence that the efficiency of the formation process of the surface relief gratings strongly depends on the length of the main polymer chains in the case of the s-s configuration. The explanation of this relationship is given and is based on the revealing of the differences in the ability of the motion of the main chain which is strictly related to its length.

Sobolewska, Anna; Bartkiewicz, Stanislaw [Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland)

2012-11-05T23:59:59.000Z

417

Optimizations of geothermal cycle shell and tube exchangers of various configurations with variable fluid properties and site specific fouling. [SIZEHX  

DOE Green Energy (OSTI)

A new heat exchanger program, SIZEHX, is described. This program allows single step multiparameter cost optimizations on single phase or supercritical exchanger arrays with variable properties and arbitrary fouling for a multitude of matrix configurations and fluids. SIZEHX uses a simplified form of Tinker's method for characterization of shell side performance; the Starling modified BWR equation for thermodynamic properties of hydrocarbons; and transport properties developed by NBS. Results of four parameter cost optimizations on exchangers for specific geothermal applications are included. The relative mix of capital cost, pumping cost, and brine cost ($/Btu) is determined for geothermal exchangers illustrating the invariant nature of the optimal cost distribution for fixed unit costs.

Pope, W.L.; Pines, H.S.; Silvester, L.F.; Doyle, P.A.; Fulton, R.L.; Green, M.A.

1978-03-01T23:59:59.000Z

418

Excitation spectra from angular momentum projection of Hartree-Fock states and the configuration-interaction shell-model  

E-Print Network (OSTI)

We make numerical comparison of spectra from angular-momentum projection on Hartree-Fock states with spectra from configuration-interaction nuclear shell-model calculations, all carried out in the same model spaces (in this case the sd, lower pf, and p-sd_5/2 shells) and using the same input Hamiltonians. We find, unsurprisingly, that the low-lying excitation spectra for rotational nuclides are well reproduced, but the spectra for vibrational nuclides, and more generally the complex specta for odd-A and odd-odd nuclides are less well reproduced in detail.

Joshua T. Staker; Calvin W. Johnson

2013-04-26T23:59:59.000Z

419

Analysis of the Effects of Compositional and Configurational Assumptions on Product Costs for the Thermochemical Conversion of Lignocellulosic Biomass to Mixed Alcohols -- FY 2007 Progress Report  

DOE Green Energy (OSTI)

The purpose of this study was to examine alternative biomass-to-ethanol conversion process assumptions and configuration options to determine their relative effects on overall process economics. A process-flow-sheet computer model was used to determine the heat and material balance for each configuration that was studied. The heat and material balance was then fed to a costing spreadsheet to determine the impact on the ethanol selling price. By examining a number of operational and configuration alternatives and comparing the results to the base flow sheet, alternatives having the greatest impact the performance and cost of the overall system were identified and used to make decisions on research priorities.

Zhu, Yunhua; Gerber, Mark A.; Jones, Susanne B.; Stevens, Don J.

2008-12-05T23:59:59.000Z

420

Impacts of Array Configuration on Land-Use Requirements for Large-Scale Photovoltaic Deployment in the United States: Preprint  

SciTech Connect

Land use is often cited as an important issue for renewable energy technologies. In this paper we examine the relationship between land-use requirements for large-scale photovoltaic (PV) deployment in the U.S. and PV-array configuration. We estimate the per capita land requirements for solar PV and find that array configuration is a stronger driver of energy density than regional variations in solar insolation. When deployed horizontally, the PV land area needed to meet 100% of an average U.S. citizen's electricity demand is about 100 m2. This requirement roughly doubles to about 200 m2 when using 1-axis tracking arrays. By comparing these total land-use requirements with other current per capita land uses, we find that land-use requirements of solar photovoltaics are modest, especially when considering the availability of zero impact 'land' on rooftops. Additional work is need to examine the tradeoffs between array spacing, self-shading losses, and land use, along with possible techniques to mitigate land-use impacts of large-scale PV deployment.

Denholm, P.; Margolis, R. M.

2008-05-01T23:59:59.000Z

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


421

Tcl cures 98.3% of all known simulation configuration problems" claims astonished researcher! Tcl Workshop (New  

E-Print Network (OSTI)

We build detailed event-driven simulations of I/O systems as a way to earn a living, and use them to explore storage system architectures. Our major tool (the TickerTAIP simulator) is a large kit of parts that can be configured, combined, replicated, and connected in innumerable ways.Tcl lets us retain our sanity: it makes configuring the simulator a breeze compared to our prior techniques. In this paper we describe the general approach we adopted, and a few of the tricks and idioms we had to develop to make it work. Our approach and techniques should be useful to anybody using Tcl as a control language for a set of underlying objects. 1 The problem Our work exploring storage system architectures requires us to do lots of what if kinds of analyses, and for this weve chosen to use detailed event-driven simulation. The simulator we use, TickerTAIP, is based loosely on the one described in [Cao93] and [Ruemmler94].

Richard Golding; Carl Staelin; Tim Sullivan; John Wilkes

1994-01-01T23:59:59.000Z

422

Impacts of Array Configuration on Land-Use Requirements for Large-Scale Photovoltaic Deployment in the United States: Preprint  

DOE Green Energy (OSTI)

Land use is often cited as an important issue for renewable energy technologies. In this paper we examine the relationship between land-use requirements for large-scale photovoltaic (PV) deployment in the U.S. and PV-array configuration. We estimate the per capita land requirements for solar PV and find that array configuration is a stronger driver of energy density than regional variations in solar insolation. When deployed horizontally, the PV land area needed to meet 100% of an average U.S. citizen's electricity demand is about 100 m2. This requirement roughly doubles to about 200 m2 when using 1-axis tracking arrays. By comparing these total land-use requirements with other current per capita land uses, we find that land-use requirements of solar photovoltaics are modest, especially when considering the availability of zero impact 'land' on rooftops. Additional work is need to examine the tradeoffs between array spacing, self-shading losses, and land use, along with possible techniques to mitigate land-use impacts of large-scale PV deployment.

Denholm, P.; Margolis, R. M.

2008-05-01T23:59:59.000Z

423

Design, performance, and analysis of an aquifer thermal-energy-storage experiment using the doublet-well configuration  

DOE Green Energy (OSTI)

In March 1980 Auburn University began series of aquifer thermal energy storage (ATES) experiments using the doublet well configuration. The test site was in Mobile, Alabama. The objectives of the three experimental cycles were to demonstrate the technical feasibility of the ATES concept, to identify and resolve operational problems, and to acquire a data base for developing and testing mathematical models. Pre-injection tests were performed and analyses of hydraulic, geochemical, and thermodynamic data were completed. Three injection-storage-recovery cycles had injection volumes of 25,402 m/sup 3/, 58,010 m/sup 3/, and 58,680 m/sup 3/ and average injection temperatures of 58.5/sup 0/C, 81.0/sup 0/C, and 79.0/sup 0/C, respectively. The first cycle injection began in February 1981 and the third cycle recovery was completed in November 1982. Attributable to the doublet well configuration no clogging of injection wells occurred. Energy recovery percentages based on recovery volumes equal to the injection volumes were 56, 45, and 42%. Thermal convection effects were observed. Aquifer nonhomogeneity, not detectable using standard aquifer testing procedures, was shown to reduce recovery efficiency.

Molz, F.J.; Melville, J.G.; Gueven, O.; Parr, A.D.

1983-09-01T23:59:59.000Z

424

Limitations of ad hoc "SKA+VLBI" configurations & the need to extend SKA to trans-continental dimensions  

E-Print Network (OSTI)

The angular resolution of the proposed Square Kilometre Array, SKA, must be extended towards the milliarcsecond scale if it is to resolve the distant starburst galaxies that are likely to dominate the radio source counts at micro and sub-microJy flux levels. This paper considers the best way of extending SKA's angular resolution towards the milliarcsecond scale. Two possible SKA-VLBI configurations have been investigated and simulated SKA and SKA-VLBI visibility data sets generated. The effects of non-uniform data weighting on the associated images are considered. The results suggest that the preferred option is for SKA to be extended to trans-continental dimensions. By retaining 50% of the array's collecting area within a region no larger than 50 km, the surface brightness sensitivity of the array at arcsec resolution is hardly compromised. In this configuration SKA's capabilities are impressive: in a single 12 hour run, between 100-1000 sources will be simultaneously detected and imaged with arcsecond, sub-arcsecond and milliarcsecond resolution.

M. A. Garrett

1999-08-31T23:59:59.000Z

425

Impacts of Array Configuration on Land Use Requirements for Large-Scale Photovoltaic Deployment in the United States  

SciTech Connect

Land use is often cited as an important issue for renewable energy technologies. In this paper we examine the relationship between land-use requirements for large-scale photovoltaic (PV) deployment in the U.S. and PV-array configuration. We estimate the per capita land requirements for solar PV and find that array configuration is a stronger driver of energy density than regional variations in solar insolation. When deployed horizontally, the PV land area needed to meet 100% of an average U.S. citizen's electricity demand is about 100 m{sup 2}. This requirement roughly doubles to about 200 m{sup 2} when using 1-axis tracking arrays. By comparing these total land-use requirements with other current per capita land uses, we find that land-use requirements of solar photovoltaics are modest, especially when considering the availability of zero impact 'land' on rooftops. Additional work is need to examine the tradeoffs between array spacing, self-shading losses, and land use, along with possible techniques to mitigate land-use impacts of large-scale PV deployment.

Denholm, P.; Margolis, R. M.

2008-01-01T23:59:59.000Z

426

Nuclear forces from quenched and 2+1 flavor lattice QCD using the PACS-CS gauge configurations  

E-Print Network (OSTI)

Two of recent progress in lattice QCD approach to nuclear force are reported. (i) Tensor force from quenched lattice QCD: By truncating the derivative expansion of inter-nucleon potential to the strictly local terms, we obtain central force V_C(r) and tensor force V_T(r) separately from s-wave and d-wave components of Bethe-Salpeter wave function for two nucleon state with J^P=1^+. Numerical calculation is performed with quenched QCD on 32^4 lattice using the standard plaquette action at beta=5.7 with the standard Wilson quark action with kappa=0.1640, 0.1665, 0.1678. Preliminary results show that the depths of the resulting tensor force amount to 20 to 40 MeV, which is enhanced in the light quark mass region. (ii) Nuclear force from 2+1 flavor QCD with PACS-CS gauge configuration: Preliminary full QCD results are obtained by using 2+1 flavor gauge configurations generated by PACS-CS collaboration. The resulting potential has the midium range attraction of about 30 MeV similar to the preceding quenched calculations. However, the repulsive core at short distance is significantly stronger than the corresponding quenched QCD result.

N. Ishii; S. Aoki; T. Hatsuda; for PACS-CS Collaboration

2009-03-31T23:59:59.000Z

427

Accurate Bond Energies of Hydrocarbons from Complete Basis Set Extrapolated Multi-Reference Singles and Doubles Configuration Interaction  

Science Conference Proceedings (OSTI)

Quantum chemistry has become one of the most reliable tools for characterizing the thermochemical underpinnings of reactions, such as bond dissociation energies (BDEs). The accurate prediction of these particular properties (BDEs) are challenging for ab initio methods based on perturbative corrections or coupled cluster expansions of the single-determinant Hartree-Fock wave function: the processes of bond breaking and forming are inherently multi-configurational and require an accurate description of non-dynamical electron correlation. To this end, we present a systematic ab initio approach for computing BDEs that is based on three components: (1) multi-reference single and double excitation configuration interaction (MRSDCI) for the electronic energies; (2) a two-parameter scheme for extrapolating MRSDCI energies to the complete basis set limit; and (3) DFT-B3LYP calculations of minimumenergy structures and vibrational frequencies to account for zero point energy and thermal corrections. We validated our methodology against a set of reliable experimental BDE values of C*C and C*H bonds of hydrocarbons. The goal of chemical accuracy is achieved, on average, without applying any empirical corrections to the MRSDCI electronic energies. We then use this composite scheme to make predictions of BDEs in a large number of hydrocarbon molecules for which there are no experimental data, so as to provide needed thermochemical estimates for fuel molecules.

Oyeyemi, Victor B.; Pavone, Michele; Carter, Emily A.

2011-11-03T23:59:59.000Z

428

Observed Asymptotic Differences in Energies of Stable and Minimal Point Configurations on $\\mathbb{S}^2$ and the Role of Defects  

E-Print Network (OSTI)

Observations suggest that configurations of points on a sphere that are stable with respect to a Riesz potential distribute points uniformly over the sphere. Further, these stable configurations have a local structure that is largely hexagonal. Minimal configurations differ from stable configurations in the arrangement of defects within the hexagonal structure. This paper reports the asymptotic difference between the average energy of stable states and the lowest reported energies. We use this to infer the energy scale at which defects in the hexagonal structure are manifest. We report results for the Riesz potentials for s=0, s=1, s=2 and s=3. Additionally we compare existing theory for the asymptotic expansion in N of the minimal $N$-point energy with experimental results. We report a case of two distinct stable states that have the same Voronoi structure. Finally, we report the observed growth of the number of stable states as a function of N.

M. Calef; W. Griffiths; A. Schulz; C. Fichtl; D. Hardin

2013-07-01T23:59:59.000Z

429

Examination of Convection-Allowing Configurations of the WRF Model for the Prediction of Severe Convective Weather: The SPC/NSSL Spring Program 2004  

Science Conference Proceedings (OSTI)

Convection-allowing configurations of the Weather Research and Forecast (WRF) model were evaluated during the 2004 Storm Prediction CenterNational Severe Storms Laboratory Spring Program in a simulated severe weather forecasting environment. The ...

John S. Kain; S. J. Weiss; J. J. Levit; M. E. Baldwin; D. R. Bright

2006-04-01T23:59:59.000Z

430

Impact of Configurations of Rapid Intermittent Assimilation of WSR-88D Radar Data for the 8 May 2003 Oklahoma City Tornadic Thunderstorm Case  

Science Conference Proceedings (OSTI)

Various configurations of the intermittent data assimilation procedure for Level-II Weather Surveillance Radar-1988 Doppler radar data are examined for the analysis and prediction of a tornadic thunderstorm that occurred on 8 May 2003 near ...

Ming Hu; Ming Xue

2007-02-01T23:59:59.000Z

431

A numerical study of steady-state vortex configurations and vortex pinning in type-II superconductors  

E-Print Network (OSTI)

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 magnetic field H are presented. Transitions between different multi-vortex states as H is changed is demonstrated by abrupt changes in vortex configurations and jumps in the B vs H plot. An efficient scheme to determine the equilibrium vortex configuration in a mesoscopic system at any given applied field, not limited to the symmetry of the system, is devised and demonstrated. In part II, a superconducting thin film is subject to a non-uniform magnetic field from a vertical magnetic dipole, consisting of two magnetic monopoles of opposite charges. For a film with constant thickness and with no pins, it has been found that the film carries two pairs of vortex-antivortex in the steady state in the imposed flux range of 2.15 < (Phi)+ < 2.90 (in units of flux quantum) and no vortex at all for (Phi)+ <= 2.15. Transitions from a superconducting state with 3 pairs of vortex-antivortex to one with 2 pairs, where a pair of vortex-antivortex annihilates, have been observed in the pseudo-time sequence. With a perturbation with antidots (holes), vortexantivortex pair has been created for lower magnetic fluxes down to (Phi)+ = 1.3. In the sample of size 16(Xi) x 16(Xi), the attraction force between the vortex and antivortex always dominates over the pinning force, so that they eventually come out of pins, move toward each other, and annihilate each other. The annihilation rate, measured with time taken for the annihilation, is reduced noticeably by the increase of the distance between pins, or the increase in the pin size. A simulation of the magnetic vortex pinning in the sample of size 32(Xi) x 32(Xi) suggests we are likely to achieve pinning of the vortex-antivortex pair with the sample size around this and vortex-antivortex separation of 22(Xi). Using this sample as a template, the maximum density of pinned vortices achievable is calculates to be about 7.6 x 10^14 vortices/m2 for (Xi) =~ 1.6A.

Kim, Sangbum

2004-12-01T23:59:59.000Z

432

The effect of hardware configuration on the performance of residential air conditioning systems at high outdoor ambient temperatures  

E-Print Network (OSTI)

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 conditioning units in psychrometric rooms at Texas A&M University. All units were tested using ARI Standard 210/240 (1989) test procedures. Tests were conducted at indoor conditions of 80'F (26.7'C) db and 67'F (19.4'C) wb, and outdoor db temperatures of 82'F (27.8'C), 95-F (35-C), 100-F (37.8-C), 105-F (40.6-C), 1 10-F (43.3-C), and 120-F (48.90C). The second phase of the research involved the analysis of manufacturers' published cooling performance data for various hardware configurations. For the experimental work, measurements were taken to determine total capacity, system power, EER, and power factor. These results were then compared to manufacturers' predicted values. For the capacity, the experimental results were an average of 2.6% below the manufacturers' published values for outdoor temperatures from 85'F (29.4'C) to 115'F (46.l'C). Experimental power measurements were on average 0.4% above manufacturers' listed results. For the EER, experimental results were an average of 2.9% less than the manufacturers' predicted values. The power factors of all units were above 0.95 for the tested outdoor temperatures. In the analysis of manufacturers' published data, relationships between steady-state performance, cyclic performance, and hardware configuration were investigated for a variety of air conditioning units. A statistical relationship was found between the SEER of a unit and its corresponding EER. The split-system units possessed greater increases in EER for a given increase in SEER than the package or two-speed units. Averages values of EER/SEER for EER's at 95F (350C) were highest for the split-system units, followed by the package and two-speed units, respectively. Normalized capacity, power, and EER curves were investigated at outdoor temperatures from 85F (29.40C) to 115OF (46.1"C). On average, the two-speed units showed the smallest decrease in capacity with an increase in outdoor temperature, followed by the split-system and package-system units. The smallest power increase and smallest EER decrease with an increase in outdoor temperature were exhibited by the split-system units, followed by the two-speed and package-system units.

Bain, Joel Alan

1995-01-01T23:59:59.000Z

433

Configuration Management: A Critical Analysis of Applications Using the 8-Step Problem Solving Method L.L. Fletcher, PhD, SIDC, Advanced Space Operations School, Colorado Springs, CO, USA.  

E-Print Network (OSTI)

life" (MIL-HDBK-61A, 2001, p. 3-4). The de facto configuration management process of the operational, configuration information needed to manage products and product information effectively" (MIL-HDBK-61A, 2001, p, Military Handbook: Configuration Management Guidance, MIL-HDBK-61A (SE), Washington DC, 2001. Biography

Johnson, Chris

434

The impact of water flow configuration on crystallisation in LiBr/H2O absorption water heater  

SciTech Connect

Lithium Bromide (LiBr) strong solution entering the absorber tends to crystallise when the absorber temperature is increased for a fixed evaporating pressure. This is considered the key technical barrier for the development of a LiBr absorption heat pump water heater. There are several approaches to avoid the crystallisation problem, such as chemical crystallisation inhibitors, heat and mass transfer enhancement and thermodynamic cycle modification. This paper investigates and compares two flow configurations of LiBr absorption heat pump water heater to evaluate the allowable operating conditions for each. The simulation results indicated that introducing the process water through the absorber first results in lower absorber temperature and hence less tendency for crystallisation.

Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

2011-03-01T23:59:59.000Z

435

Non-perturbative renormalization of overlap quark bilinears on 2+1-flavor domain wall fermion configurations  

E-Print Network (OSTI)

We present renormalization constants of overlap quark bilinear operators on 2+1-flavor domain wall fermion configurations. This setup is being used by the chiQCD collaboration in calculations of physical quantities such as strangeness in nucleon and the strange and charm quark masses. The scale independent renormalization constant for the axial vector current is computed using a Ward Identity. The renormalization constants for scalar, pseudoscalar and vector current are calculated in the RI-MOM scheme. Results in the MS-bar scheme are also given. The analysis uses in total six different ensembles of three sea quarks each on two lattices with sizes 24^3x64 and 32^3x64 at spacings a=(1.73 GeV)^{-1} and (2.28 GeV)^{-1}, respectively.

Liu, Zhaofeng; Dong, Shao-Jing; Glatzmaier, Michael; Gong, Ming; Li, Anyi; Liu, Keh-Fei; Yang, Yi-Bo; Zhang, Jian-Bo

2013-01-01T23:59:59.000Z

436

Configuration-space Faddeev calculation for proton-deuteron observables at energy E{sub lab} = 3 MeV  

SciTech Connect

A new computational method for solving the nucleon-deuteron breakup scattering problem has been applied to study the elastic neutron- and proton-deuteron scattering on the basis of the configuration-space Faddeev-Noyes-Noble-Merkuriev equations. This method is based on the spline-decomposition in the angular variable and on a generalization of the Numerov method for the hyperradius. The Merkuriev-Gignoux-Laverne approach has been generalized for arbitrary nucleon-nucleon potentials and with an arbitrary number of partial waves taken into account. The nucleon-deuteron observables at the incident nucleon energy 3 MeV have been calculated using the charge-independent AV14 nucleon-nucleon potential including the Coulomb force for the proton-deuteron scattering. Results have been compared with those of other authors and with experimental proton-deuteron scattering data.

Suslov, V. M.; Filikhin, I.; Vlahovic, B.; Slaus, I. [Department of Physics, North Carolina Central University, 1801 Fayetteville Street, Durham, NC 27707,USA (United States); Braun, M. A. [Department of Physics, North Carolina Central University, 1801 Fayetteville Street, Durham, NC 27707,USA (United States); Department of High Energy Physics and Elementary Particles,Saint-Petersburg State University, 198504, Petrodvorets, St. Petersburg (Russian Federation)

2011-10-24T23:59:59.000Z

437

An Experimental and Analytical Evaluation of Wall And Window Retrofit Configurations: Supporting the Residential Retrofit Best Practices Guide  

SciTech Connect

A Retrofit Best Practices Guide was developed to encourage homeowners to consider energy conservation issues whenever they modify their siding or windows. In support of this guide, an experimental program was implemented to measure the performance of a number of possible wall siding and window retrofit configurations. Both thermal and air-leakage measurements were made for a 2.4 x 2.4 m (8 x 8 ft) wall section with and without a 0.9 x 1.2 m (3 x 4 ft) window. The windows tested were previously well-characterized at a dedicated window test facility. A computer model was also used to provide information for the Best Practices Guide. The experimental data for walls and windows were used in conjunction with this model to estimate the total annual energy savings for several typical houses in a number of different locations.

Stovall, Therese K [ORNL; Petrie, Thomas [ORNL; Kosny, Jan [ORNL; Childs, Phillip W [ORNL; Atchley, Jerald Allen [ORNL; Hulvey, Kimberly D [ORNL

2007-11-01T23:59:59.000Z

438

Dirac GPU Cluster Configuration  

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

processors (8 cores per node) and 24GB DDR3-1066 Reg ECC memory. 44 nodes: 1 NVIDIA Tesla C2050 (code named Fermi) GPU with 3GB of memory and 448 parallel CUDA processor cores....

439

Passive magnetic bearing configurations  

Science Conference Proceedings (OSTI)

A journal bearing provides vertical and radial stability to a rotor of a passive magnetic bearing system when the rotor is not rotating and when it is rotating. In the passive magnetic bearing system, the rotor has a vertical axis of rotation. Without the journal bearing, the rotor is vertically and radially unstable when stationary, and is vertically stable and radially unstable when rotating.

Post, Richard F. (Walnut Creek, CA)

2011-01-25T23:59:59.000Z

440

Underground Layout Configuration  

SciTech Connect

The purpose of this analysis was to develop an underground layout to support the license application (LA) design effort. In addition, the analysis will be used as the technical basis for the underground layout general arrangement drawings.

A. Linden

2003-09-25T23:59:59.000Z

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


441

Configuring VRF Support  

E-Print Network (OSTI)

Virtual Route Forwarding (VRF) divides a physical router into multiple logical routers, each having its own set of interfaces and routing and forwarding tables. VRF support in voice networks can be used to split Cisco Unified Communications Manager Express (Cisco Unified CME) into multiple virtual systems for SIP and SCCP endpoints and TAPI-based client applications and softphones on your PC. Finding Feature Information Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information for VRF Support section on page 1569. Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to

unknown authors

2008-01-01T23:59:59.000Z

442

CCE - Common Configuration Enumeration  

Science Conference Proceedings (OSTI)

... CCE v5 - IIS 5 (53 KB), February 14, 2013. CCE v5 - IIS 6 (80 KB), February 14, 2013. CCE v5 - Microsoft Exchange 2007 (241 KB), March 14, 2012. ...

443

Configuration tools: working together  

Science Conference Proceedings (OSTI)

Since the LISA conferences began, the character of a typical "large installation" has changed greatly. Most large sites tended to consist of a comparatively small number of handcrafted "servers" supporting a larger number of very similar "clients" (which ...

Paul Anderson; Edmund Smith

2005-12-01T23:59:59.000Z

444

CONFIGURATION MANAGEMENT (CM)  

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

is established and supported by training and procedures to maintain control over the design and modifications. (CORE REQUIREMENTS 1, 2, 5, 7, 8, 9, 10, and 13) Requirements: *...

445

Configurational Thermodynamics of Materials  

Science Conference Proceedings (OSTI)

DFT, CE, CALPHAD and Phase Field, Cooperative Phenomena Powered by DDF. Effect of Biaxial Strain on Phase Stability and Microstructure Development in...

446

Cielo Configuration management  

SciTech Connect

This talk will explain to our admins what steps were necessary to bring Cielo under Cfengine control and help understand the nature of the beast.

Grunau, Daryl [Los Alamos National Laboratory

2012-06-01T23:59:59.000Z

447

Effect of steam generator configuration in a loss of the RHR during mid-loop operation at PKL facility  

SciTech Connect

The loss of the residual heat removal system in mid-loop conditions may occur with a non-negligible contribution to the plant risk, so the analysis of the accidental sequences and the actions to mitigate the accident are of great interest in shutdown conditions. In order to plan the appropriate measures to mitigate the accident is necessary to understand the thermal-hydraulic processes following the loss of the residual heat removal system during shutdown. Thus, transients of this kind have been simulated using best-estimate codes in different integral test facilities and compared with experimental data obtained in different facilities. In PKL (Primaerkreislauf-Versuchsanlage, primary coolant loop test facility) test facility different series of experiments have been undertaken to analyze the plant response in shutdown. In this context, the E3 and F2 series consist of analyzing the loss of the residual heat removal system with a reduced inventory in the primary system. In particular, the experiments were developed to investigate the influence of the steam generators secondary side configuration on the plant response, what involves the consideration of different number of steam generators filled with water and ready for activation, on the heat transfer mechanisms inside the steam generators U-tubes. This work presents the results of such experiments calculated using, RELAP5/Mod 3.3. (authors)

Villanueva, J. F.; Carlos, S.; Martorell, S.; Sanchez, F. [Dpto. Ingenieria Quimica Y Nuclear, Universitat Politecnica de Valencia, Camino Vera s/n, 46022 Valencia (Spain)

2012-07-01T23:59:59.000Z

448

Hybrid Electric Vehicle Power Management Solutions Based on Isolated and Non-Isolated Configurations of MMCCC Converter  

Science Conference Proceedings (OSTI)

This paper presents the various configurations of a multilevel modular capacitor-clamped converter (MMCCC), and it reveals many useful and new formations of the original MMCCC for transferring power in either an isolated or nonisolated manner. The various features of the original MMCCC circuit are best suited for a multibus system in future plug-in hybrid or fuel-cell-powered vehicles' drive train. The original MMCCC is capable of bidirectional power transfer using multilevel modular structure with capacitor-clamped topology. It has a nonisolated structure, and it offers very high efficiency even at partial loads. This circuit was modified to integrate single or multiple high-frequency transformers by using the intermediate voltage nodes of the converter. On the other hand, a special formation of the MMCCC can exhibit dc outputs offering limited isolation without using any isolation transformer. This modified version can produce a high conversion ratio from a limited number of components and has several useful applications in providing power to multiple low-voltage loads in a hybrid or electric automobile. This paper will investigate the origin of generating ac outputs from the MMCCC and shows how the transformer-free version can be modified to create limited isolation from the circuit. In addition, this paper will compare various modified forms of the MMCCC topology with existing dc-dc converter circuits from compactness and component utilization perspectives.

Khan, Faisal H [ORNL; Tolbert, Leon M [ORNL; Webb, William E [Oak Ridge National Laboratory (ORNL)

2009-01-01T23:59:59.000Z

449

The Multi-Configurational Hartree-Fock close-coupling ansatz: application to Argon photoionization cross section and delays  

E-Print Network (OSTI)

We present a robust, ab initio method for addressing atom-light interactions and apply it to photoionization of argon. We use a close-coupling ansatz constructed on a multi-configurational Hartree-Fock description of localized states and B-spline expansions of the electron radial wave functions. In this implementation, the general many-electron problem can be tackled thanks to the use of the ATSP2K libraries [CPC 176 (2007) 559]. In the present contribution, we combine this method with exterior complex scaling, thereby allowing for the computation of the complex partial amplitudes that encode the whole dynamics of the photoionization process. The method is validated on the 3s3p6np series of resonances converging to the 3s extraction. Then, it is used for computing the energy dependent differential atomic delay between 3p and 3s photoemission, and agreement is found with the measurements of Gu\\'enot et al. [PRA 85 (2012) 053424]. The effect of the presence of resonances in the one-photon spectrum on photoioniz...

Carette, T; Argenti, L; Lindroth, E

2013-01-01T23:59:59.000Z

450

Indoor test for thermal performance of the G. E. TC-100 liquid solar collector eight- and ten-tube configuration  

DOE Green Energy (OSTI)

The test procedure used and the results obtained from an evaluation test program conducted to obtain thermal performance data on G.E. TC-100 liquid solar collectors, eight- and ten-tube configuration, under simulated conditions are described. These tests were made using the Marshall Space Flight Center's solar simulator. A time constant test and incident angle modifier test were also conducted to determine the transient effect and the incident angle effect on the collector. Performance loss with accessory covers is demonstrated. The G.E. TC-100 evacuated tube solar collector is a water/Prestone/working fluid type with and without manufacturer's accessory manifold. The gross collector area is about 17.4 ft/sup 2/ without manifold and 19.1 ft/sup 2/ with manifold. The eight-tube (S.N. 19965S) uses Alglas reflector material and the ten-tube (Dwg. 298E44261, S.N. 2) uses Coilzac reflector material. The collector weight is approximately 60 pounds empty and 75 pounds with manifold.

Not Available

1979-09-01T23:59:59.000Z

451

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation...  

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

Drilling (DE-FC26-04NT15502) is to design two sizes of ultra-high-speed (10,000 rpm) electric inverted configured motors for microhole drilling. The goal of the related NETL...

452

Review of Electrical System Configuration Management and Design Change Control at the Savannah River Site, Waste Solidification Building Project, July 2011  

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

Independent Review of Independent Review of Electrical System Configuration Management and Design Change Control at the Savannah River Site, Waste Solidification Building Project July 2011 Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ......................................................................................................................................1 2.0 Scope .........................................................................................................................................1 3.0 Background ...............................................................................................................................2

453

Review of Electrical System Configuration Management and Design Change Control at the Savannah River Site, Waste Solidification Building Project, July 2011  

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

Independent Review of Independent Review of Electrical System Configuration Management and Design Change Control at the Savannah River Site, Waste Solidification Building Project July 2011 Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ......................................................................................................................................1 2.0 Scope .........................................................................................................................................1 3.0 Background ...............................................................................................................................2

454

Configurational testing of electron beam ionization for coal fly ash precipitators. Final report, December 2, 1980-August 4, 1983  

Science Conference Proceedings (OSTI)

Progress towards the development of an electron beam precharger for the removal of fly ash from coal-fired boiler flue gas in a two stage precipitator system is both highly visible and promising. A unique Electron Beam Precipitator (EBP) test system has been constructed and put into operation at Florida State University. This system provides a flexible test bed for the assessment of prechanger configurations which utilize the copious ionization produced by energetic electrons. Modules of the test system which incorporates research capabilities in both electron beam treatment and particulate matter control technology have been tested separately and in conjunction. A first generation (Mark I) precharger has been tested and the results show that electron beam energy and precharger geometry must be rigorously matched. Experiments off-line from the test system are underway to determine the optimum geometry for a Mark II precharger. As part of the EBP subsystem development work, a new particle charge-to-radius ratio measurement system has been designed, constructed and put into successful operation. This q/a monitor provides real time measurements and permanent data recording, and it meets the need for particle charge-to-radius measurement in general. Work on particulate control technology at Florida State University has been undertaken with the knowledge that electron beam treatment projects for the removal of SO/sub 2/ and NO/sub x/ from flue gas are being carried out by two companies in the US with DOE support. Once an assessment of the development of this unique control technology method is completed in work subsequent to this contract, the next anticipated step is the development of an intergrated system for the combined removal of SO/sub 2/, NO/sub x/ and coal fly ash. 69 refs., 62 figs., 7 tabs.

Davis, R.H.

1983-01-01T23:59:59.000Z

455

Modeling Hot Mix Asphalt Compaction Using a Thermodynamics Based Compressible Viscoelastic Model within the Framework of Multiple Natural Configurations  

E-Print Network (OSTI)

Hot mix asphalt (HMA) is a composite material that exhibits a nonlinear response that is dependent on temperature, type of loading and strain level. The properties of HMA are highly influenced by the type and amount of the constituents used and also depend on its internal structure. In such a material the variable effects of the compaction process assume a central importance in determining material performance. It is generally accepted that the theoretical knowledge about material behavior during compaction is limited and it is therefore hard to predict and manage (the effect of) a compaction process. This work makes an attempt to address such a specific need by developing a continuum model that can be adapted for simulating the compaction of hot mix asphalt (HMA) using the notion of multiple natural configurations. A thermodynamic framework is employed to study the non-linear dissipative response associated with HMA by specifying the forms for the stored energy and the rate of dissipation function for the material; a viscoelastic compressible fluid model is developed using this framework to model the compaction of hot mix asphalt. It is further anticipated that the present work will aid in the development of better constitutive models capable of capturing the mechanics of processes like compaction both in the laboratory and in the field. The continuum model developed was implemented in the finite element method, which was employed to setup a simulation environment for hot mix asphalt compaction. The finite element method was used for simulating compaction in the laboratory and in various field compaction projects.

Koneru, Saradhi

2010-08-01T23:59:59.000Z

456

HIGH-MASS, FOUR-PLANET CONFIGURATIONS FOR HR 8799: CONSTRAINING THE ORBITAL INCLINATION AND AGE OF THE SYSTEM  

SciTech Connect

Debates regarding the age and inclination of the planetary system orbiting HR 8799, and the release of additional astrometric data following the discovery of the fourth planet, prompted us to examine the possibility of constraining these two quantities by studying the long-term stability of this system at different orbital inclinations and in its high-mass configuration (7-10-10-10 M{sub Jup}). We carried out {approx}1.5 million N-body integrations for different combinations of orbital elements of the four planets. The most dynamically stable combinations survived less than {approx}5 Myr at inclinations of 0 Degree-Sign and 13 Degree-Sign , and 41, 46, and 31 Myr at 18 Degree-Sign , 23 Degree-Sign , and 30 Degree-Sign , respectively. Given such short lifetimes and the location of the system on the age-luminosity diagram for low-mass objects, the most reasonable conclusion of our study is that the planetary masses are less than 7-10-10-10 M{sub Jup} and the system is quite young. Two trends to note from our work are as follows. (1) In the most stable systems, the higher the inclination, the more the coordinates for planets b and c diverge from the oldest archival astrometric data (released after we completed our N-body integrations), suggesting that either these planets are in eccentric orbits or have lower orbital inclinations than that of planet d. (2) The most stable systems place planet e closer to the central star than is observed, supporting the conclusion that the planets are more massive and the system is young. We present the details of our simulations and discuss the implications of the results.

Sudol, Jeffrey J. [Department of Physics, West Chester University, 720 S. Church Street, West Chester, PA 19383 (United States); Haghighipour, Nader, E-mail: jsudol@wcupa.edu, E-mail: nader@ifa.hawaii.edu [Institute for Astronomy and NASA Astrobiology Institute, University of Hawaii-Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States)

2012-08-10T23:59:59.000Z

457

UV LED charge control of an electrically isolated proof mass in a Gravitational Reference Sensor configuration at 255 nm  

E-Print Network (OSTI)

Precise control over the potential of an electrically isolated proof mass is necessary for the operation of devices such as a Gravitational Reference Sensor (GRS) and satellite missions such as LISA. We show that AlGaN UV LEDs operating at 255 nm are an effective substitute for Mercury vapor lamps used in previous missions because of their ability to withstand space qualification levels of vibration and thermal cycling. After 27 thermal and thermal vacuum cycles and 9 minutes of 14.07 g RMS vibration, there is less than 3% change in current draw, less than 15% change in optical power, and no change in spectral peak or FWHM (full width at half maximum). We also demonstrate UV LED stimulated photoemission from a wide variety of thin film carbide proof mass coating candidates (SiC, Mo2C, TaC, TiC, ZrC) that were applied using electron beam evaporation on an Aluminum 6061-T6 substrate. All tested carbide films have measured quantum efficiencies of 3.8-6.8*10^-7 and reflectivities of 0.11-0.15, which compare favorably with the properties of previously used gold films. We demonstrate the ability to control proof mass potential on an 89 mm diameter spherical proof mass over a 20 mm gap in a GRS-like configuration. Proof mass potential was measured via a non-contact DC probe, which would allow control without introducing dynamic forcing of the spacecraft. Finally we provide a look ahead to an upcoming technology demonstration mission of UV LEDs and future applications toward charge control of electrically isolated proof masses.

Karthik Balakrishnan; Ke-Xun Sun; Abdul Alfauwaz; Ahmad Aljadaan; Mohammed Almajeed; Muflih Alrufaydah; Salman Althubiti; Homoud Aljabreen; Sasha Buchman; Robert L Byer; John Conklin; Daniel DeBra; John Hanson; Eric Hultgren; Turki Al Saud; Seiya Shimizu; Michael Soulage; Andreas Zoellner

2012-02-03T23:59:59.000Z

458

A fission-fusion hybrid reactor in steady-state L-mode tokamak configuration with natural uranium  

Science Conference Proceedings (OSTI)

This work develops a conceptual design for a fusion-fission hybrid reactor operating in steady-state L-mode tokamak configuration with a subcritical natural or depleted uranium pebble bed blanket. A liquid lithium-lead alloy breeds enough tritium to replenish that consumed by the D-T fusion reaction. The fission blanket augments the fusion power such that the fusion core itself need not have a high power gain, thus allowing for fully non-inductive (steady-state) low confinement mode (L-mode) operation at relatively small physical dimensions. A neutron transport Monte Carlo code models the natural uranium fission blanket. Maximizing the fission power gain while breeding sufficient tritium allows for the selection of an optimal set of blanket parameters, which yields a maximum prudent fission power gain of approximately 7. A 0-D tokamak model suffices to analyze approximate tokamak operating conditions. This fission blanket would allow the fusion component of a hybrid reactor with the same dimensions as ITER to operate in steady-state L-mode very comfortably with a fusion power gain of 6.7 and a thermal fusion power of 2.1 GW. Taking this further can determine the approximate minimum scale for a steady-state L-mode tokamak hybrid reactor, which is a major radius of 5.2 m and an aspect ratio of 2.8. This minimum scale device operates barely within the steady-state L-mode realm with a thermal fusion power of 1.7 GW. Basic thermal hydraulic analysis demonstrates that pressurized helium could cool the pebble bed fission blanket with a flow rate below 10 m/s. The Brayton cycle thermal efficiency is 41%. This reactor, dubbed the Steady-st