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Note: This page contains sample records for the topic "dual overhead cam" 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

Self-latching eccentric cam for dual stroke compressor or pump  

DOE Patents [OSTI]

For a dual capacity refrigerant compressor of the type which has an eccentric cam rotatable on a crankpin between two opposite positions which changes the total eccentricity of the crankpin and cam so as to obtain two different stroke lengths, the rotation of the cam on the crankpin being effected by a reversal of motor operation, the cam moves through an angle of about 270.degree. around the crankpin so that a centrifugal force torque tending to hold the cam in place is available at least in the reduced stroke length position of the cam, and by providing lightening cavities and eccentric weightings, the center of mass 74 of the cam can be shifted to obtain the centrifugal torque in the proper direction at both the maximum and reduced stroke positions.

Sisk, Francis J. (San Mateo, CA)

1985-01-01T23:59:59.000Z

2

Self-latching eccentric cam for dual stroke compressor or pump  

DOE Patents [OSTI]

For a dual capacity refrigerant compressor of the type which has an eccentric cam rotatable on a crankpin between two opposite positions which changes the total eccentricity of the crankpin and cam so as to obtain two different stroke lengths, the rotation of the cam on the crankpin being effected by a reversal of motor operation, the cam moves through an angle of about 270[degree] around the crankpin so that a centrifugal force torque tending to hold the cam in place is available at least in the reduced stroke length position of the cam, and by providing lightening cavities and eccentric weightings, the center of mass of the cam can be shifted to obtain the centrifugal torque in the proper direction at both the maximum and reduced stroke positions. 7 figs.

Sisk, F.J.

1985-01-22T23:59:59.000Z

3

CAMS Competencies  

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

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4

Roller Cam Positioners  

SciTech Connect (OSTI)

Roller Cam Positioners could support the LCLS undulator sections allowing micron sized alignment adjustment of each undulator in 5 degrees of freedom. The supports are kinematic with the number of degrees of freedom matched to the number of constraints. Ton loads are supported on simple ball bearings. Motion is intrinsically bounded. Positioning mechanisms are based on pure rolling motion with sub-micron hysteresis and micron resolution. This note describes a general purpose positioning mechanism suitable for undulator support.

Bowden, Gordon B.

2010-12-07T23:59:59.000Z

5

Hydraulic involute cam actuator  

DOE Patents [OSTI]

Mechanical joints are provided in which the angle between a first coupled member and a second coupled member may be varied by mechanical actuators. In some embodiments the angle may be varied around a pivot axis in one plane and in some embodiments the angle may be varied around two pivot axes in two orthogonal planes. The joints typically utilize a cam assembly having two lobes with an involute surface. Actuators are configured to push against the lobes to vary the rotation angle between the first and second coupled member.

Love, Lonnie J. (Knoxville, TN); Lind, Randall F. (Loudon, TX)

2011-11-01T23:59:59.000Z

6

The NERSC CAM Benchmark  

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

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7

Cam-controlled boring bar  

DOE Patents [OSTI]

A cam-controlled boring bar system (100) includes a first housing (152) which is rotatable about its longitudinal axis (154), and a second housing in the form of a cam-controlled slide (158) which is also rotatable about the axis (154) as well as being translatable therealong. A tool-holder (180) is mounted within the slide (158) for holding a single point cutting tool. Slide (158) has a rectangular configuration and is disposed within a rectangularly configured portion of the first housing (152). Arcuate cam slots (192) are defined within a side plate (172) of the housing (152), while cam followers (194) are mounted upon the cam slide (158) for cooperative engagement with the cam slots (192). In this manner, as the housing (152) and slide (158) rotate, and as the slide (158) also translates, a through-bore (14) having an hourglass configuration will be formed within a workpiece (16) which may be, for example, a nuclear reactor steam generator tube support plate.

Glatthorn, Raymond H. (St. Petersburg, FL)

1986-01-01T23:59:59.000Z

8

Street Trees, Overhead Utlitly Distribution, and Physical Infrastructure  

E-Print Network [OSTI]

Street Trees, Overhead Utlitly Distribution, and Physical Infrastructure: Design Implictions of overhead lines for electric transmission to the customer is common in most communities, and is most likely and mission Research and Responsibilities Design considerations Ecological Considerations Budgeting

Schweik, Charles M.

9

Reducing Execution Overhead in a Data Stream Manager , Uur etintemel  

E-Print Network [OSTI]

is designed to take advantage of our overhead reducing techniques. We also discuss the specific overheads1 Reducing Execution Overhead in a Data Stream Manager Don Carney , Uur √?etintemel , Alex Rasin applications include sensor networks, position tracking, fabrication line management, network management

Cherniack, Mitch

10

Reliability of lightning resistant overhead distribution lines  

SciTech Connect (OSTI)

An assessment of the 32 year historical reliability of the 13.8 kV electrical distribution system at the Oak Ridge National Laboratory (ORNL) in Tennessee has yielded several conclusions useful In the planning of Industrial power Systems. The system configuration at ORNL has essentially remained unchanged in the last 32 years which allows a meaningful comparison of reliability trends for the plant`s eight overhead distribution lines, two of which were built in the 1960`s with lightning resistant construction techniques. Meticulous records indicating the cause, duration, and location of 135 electric outages in the plant`s distribution system have allowed a reliability assessment to be performed. The assessment clearly shows how differences in voltage construction class, length, age, and maximum elevation above a reference elevation influence the reliability of overhead power distribution lines. Comparisons are also made between the ORNL historical data and predicted failure rates from ANSI and IEEE industry surveys.

Tolbert, L.M.; Cleveland, J.T.; Degenhardt, L.J.

1995-04-01T23:59:59.000Z

11

High voltage overhead long transmission line design and fault analysis.  

E-Print Network [OSTI]

??The goal of this project is to design a reliable high voltage overhead long transmission line that satisfies specific design criteria including voltage regulation, efficiency,Ö (more)

Elzain, Mohamed Ali

2011-01-01T23:59:59.000Z

12

Free Vibrations of Coupled Spans of Overhead Transmission Lines  

E-Print Network [OSTI]

damage to the cables. Figure 1: Overhead transmission lines. Spans are suspended between towers fromFree Vibrations of Coupled Spans of Overhead Transmission Lines Sjoerd W. Rienstra Department transmission lines is studied. It is shown that the natural vibration is the gravity mode, which is free from

Eindhoven, Technische Universiteit

13

POWER-EFFICIENT OFDM WITH REDUCED COMPLEXITY AND FEEDBACK OVERHEAD  

E-Print Network [OSTI]

to the transmitter. Our design exploits the correlation among sub-carriers in order to re- duce feedback overheadPOWER-EFFICIENT OFDM WITH REDUCED COMPLEXITY AND FEEDBACK OVERHEAD Antonio G. Marques Dept. of TSC subscriber lines (DSL), digital audio and video broadcasting (DAB/DVB) standards and wireless local area

Marques, Antonio Garcia

14

Nonlinear Free Vibrations of Coupled Spans of Overhead Transmission Lines  

E-Print Network [OSTI]

Nonlinear Free Vibrations of Coupled Spans of Overhead Transmission Lines Sjoerd W. Rienstra transmission lines is studied. It is shown that the natural vibration is the gravity mode, of which of the phenomenon of galloping, which is a high amplitude periodic oscillation of overhead transmission lines due

Rienstra, Sjoerd W.

15

Introduction to CamGrid  

E-Print Network [OSTI]

set up: one for users (92 currently registered) and the other for sysadmins. Have a nice web-based utility for viewing job files in realtime on execute hosts. 41 refereed publications to date, (Science, Phys. Rev. Lett., PLOS,Ö) USERS YOUR GRID... GOD SAVE THE GRID How you can help us help you Pressgang local resources. Why arenít those laptops/desktops on CamGrid? When applying for grants, please ask for funds to put towards computational resources (~£10k?) Publications, publications...

Calleja, Mark

2008-06-26T23:59:59.000Z

16

Lossless fault-tolerant data structures with additive overhead  

E-Print Network [OSTI]

We develop the first dynamic data structures that tolerate ? memory faults, lose no data, and incur only an O(? ) additive overhead in overall space and time per operation. We obtain such data structures for arrays, linked ...

Christiano, Paul F.

17

Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation  

E-Print Network [OSTI]

Overhead transmission lines are periodically inspected using both on-ground and helicopter-aided visual inspection. Factors including sun glare, cloud cover, close proximity to power lines and the rapidly changing visual circumstances make airborne...

Kulkarni, Salil Subhash

2011-02-22T23:59:59.000Z

18

Model Documentation for the MiniCAM  

SciTech Connect (OSTI)

The MiniCAM, short for the Mini-Climate Assessment Model, is an integrated assessment model of moderate complexity focused on energy and agriculture sectors. The model produces emissions of greenhouse gases (carbon dioxide, methane and nitrous oxide) and other radiatively important substances such as sulfur dioxide. Through incorporation of the simple climate model MAGICC, the consequences of these emissions for climate change and sea-level rise can be examined. The MiniCAM is designed to be fast and flexible.

Brenkert, Antoinette L.; Smith, Steven J.; Kim, Son H.; Pitcher, Hugh M.

2003-07-17T23:59:59.000Z

19

Use of standard overhead variances as a management tool  

E-Print Network [OSTI]

hour (Actual man-hours ? Achieved standard hours) x Standard overhead rate per hour. 3. A third method of analyzing overhead variances, if we can call it a method, is not to analyze them at all. This is all too common, but it is obviously very... cost applicable to the actual number of man or machine hours. 6 National Association of Cost Accountants, ~o. cit. , p. 87. D. "Capacity volume component, " or the amount of fixed cost underabsorbed (or overabsorbed) because the number of actual...

Beasley, Robert C

1964-01-01T23:59:59.000Z

20

Characterization of SynCAM surface trafficking using a SynCAM derived ligand with high homophilic binding affinity  

SciTech Connect (OSTI)

In order to better probe SynCAM function in neurons, we produced a fusion protein between the extracellular domain of SynCAM1 and the constant fragment of human IgG (SynCAM-Fc). Whether in soluble form or immobilized on latex microspheres, the chimera bound specifically to the surface of hippocampal neurons and recruited endogenous SynCAM molecules. SynCAM-Fc was also used in combination with Quantum Dots to follow the mobility of transfected SynCAM receptors at the neuronal surface. Both immobile and highly mobile SynCAM were found. Thus, SynCAM-Fc behaves as a high affinity ligand that can be used to study the function of SynCAM at the neuronal membrane.

Breillat, Christelle [UMR CNRS 5091, Institut Francois Magendie, Universite Bordeaux 2, 33077 Bordeaux (France); Thoumine, Olivier [UMR CNRS 5091, Institut Francois Magendie, Universite Bordeaux 2, 33077 Bordeaux (France); Choquet, Daniel [UMR CNRS 5091, Institut Francois Magendie, Universite Bordeaux 2, 33077 Bordeaux (France)]. E-mail: Daniel.Choquet@pcs.u-bordeaux2.fr

2007-08-03T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

Making the Economic Case for Innovative HTLS Overhead Conductors  

E-Print Network [OSTI]

right of ways. High temperature, low sag overhead transmission conductors present an attractive option for high priority circuits as they replace existing conductors and carry higher current than conventional enhancement. This project evaluates the effects of elevated temperature on conductor strength (Part I

22

On the Energy Overhead of Mobile Storage Systems Anirudh Badam*  

E-Print Network [OSTI]

On the Energy Overhead of Mobile Storage Systems Jing Li Anirudh Badam* Ranveer Chandra* Steven the energy consumption of the storage stack on mobile platforms. We conduct several experiments on mobile plat- forms to analyze the energy requirements of their re- spective storage stacks. Software storage

Narasayya, Vivek

23

DER-CAM V3.10.5M  

Energy Science and Technology Software Center (OSTI)

003010IBMPC04 Distributed Energy Resources Customer Adoption Model (DER-CAM), Investment & Planing Version 3.10.5.m† †

24

DER-CAM INV&PLANV3.9  

Energy Science and Technology Software Center (OSTI)

003010IBMPC01 Distributed Energy Resources Customer Adoption Model (DER-CAM), Investment & Planning Version 3.9† †

25

Ecology of Plants and Light CAM plants have thick,  

E-Print Network [OSTI]

orientation to maximize light exposure. Species Adaptations-Sun Solar tracking by leaves increases light1 Ecology of Plants and Light CAM plants have thick, succulent tissues to allow for organic acid and Light Some CAM plants not obligated to just CAM Can use C3 photosynthesis during day if conditions

Cochran-Stafira, D. Liane

26

System Design Considerations for High data Rate Communications Over Multi-wire Overhead Power-  

E-Print Network [OSTI]

System Design Considerations for High data Rate Communications Over Multi-wire Overhead Power communications, multi-wire overhead lines, capacity, OFDM, coding. I. INTRODUCTION The increasing interest, and severe narrowband interference [1]. The channel characteristics of medium voltage overhead power-line

Kavehrad, Mohsen

27

Path-sensitive analysis for reducing rollback overheads  

DOE Patents [OSTI]

A mechanism is provided for path-sensitive analysis for reducing rollback overheads. The mechanism receives, in a compiler, program code to be compiled to form compiled code. The mechanism divides the code into basic blocks. The mechanism then determines a restore register set for each of the one or more basic blocks to form one or more restore register sets. The mechanism then stores the one or more register sets such that responsive to a rollback during execution of the compiled code. A rollback routine identifies a restore register set from the one or more restore register sets and restores registers identified in the identified restore register set.

O'Brien, John K.P.; Wang, Kai-Ting Amy; Yamashita, Mark; Zhuang, Xiaotong

2014-07-22T23:59:59.000Z

28

LANL Researcher Roger Wiens Discusses ChemCam  

ScienceCinema (OSTI)

Discussion of the ChemCam instrument on the Curiosity Rover that occurred during the NASA press conference prior to launch of the Mars Science Laboratory. The ChemCam instrument was developed by Los Alamos National Laboratory and the French Space Institute. Los Alamos National Laboratory researcher Roger Wiens discusses the instrument on this video. ChemCam uses a laser to "zap" features of the Martian landscape and then uses a spectrometer to gather information about the composition of the sample. ChemCam will help the Curiosity Rover determine whether Mars is or was habitable. The Rover is expected to touch down on the Red Planet on August 5, 2012.

Wiens, Roger

2014-08-12T23:59:59.000Z

29

TAUOVERSUPERMON: LOW-OVERHEAD ONLINE PARALLEL PERFORMANCE MONITORING  

SciTech Connect (OSTI)

Online or Real-time application performance monitoring allows tracking performance characteristics during execution as opposed to doing so post-mortem. This opens up several possibilities otherwise unavailable such as real-time visualization and application performance steering that can be useful in the context of long-running applications. Two fundamental components that constitute such a performance monitor are the measurement and transport systems. The former captures performance metrics of individual contexts (processes, threads). The latter enables querying the parallel/distributed state from the different contexts and also allows measurement control. As HPC systems grow in size and complexity, the key challenge is to keep the online performance monitor scalable and low overhead while still providing a useful performance reporting capability. We adapt and combine two existing, mature systems - Tuning and Analysis Utility (TAU) and Supermon - to address this problem. Tau performs the measurement while Supermon is used to collect the distributed measurement state. Our experiments show that this novel approach of using a cluster-monitor, Supermon, as the transport for online performance data from Tau leads to very low-overhead application monitoring as well as other beneits unavailable from using a traditional transport such as NFS.

SOTTILE, MATTHEW JOSEPH [Los Alamos National Laboratory; NATARAJ, AROON [Los Alamos National Laboratory; MALONY, ALLEN [Los Alamos National Laboratory; MORRIS, ALAN [Los Alamos National Laboratory; SHENDE, SAMEER [Los Alamos National Laboratory

2007-01-30T23:59:59.000Z

30

ChemCam sends digital 'thumbs up'  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser

31

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Contracting for wind generation EPRG Working an on- shore wind generator would be issued one ROC per MWh that they could sell in the market for ROCs@cam.ac.uk Publication July 2011 Financial Support ESRC RES-189-25-0155 #12;EPRG No 1120 1 Contracting for wind

Aickelin, Uwe

32

MECCA: A Robust Low-Overhead PUF Using Embedded Memory Array  

E-Print Network [OSTI]

process variations. Existing PUFs suffer from increased overhead to the original design due using a pro- grammable word line duty cycle controller. Since most modern designs already haveMECCA: A Robust Low-Overhead PUF Using Embedded Memory Array Aswin Raghav Krishna, Seetharam

Bhunia, Swarup

33

Early-Time Behavior of the Ground Transient Resistance of Overhead Lines  

E-Print Network [OSTI]

contribution to the transient response of overhead transmission lines. While the late-time behaviour. This expression can be used for the transient analysis of transmission lines in a computationally efficient way of overhead transmission lines to external disturbances like lightning discharges [1, 2]. This impedance

Loyka, Sergey

34

Methodology for Preparing an Oral Presentation of a Scientific Paper (I assume the talk is organized around slides/overheads)  

E-Print Network [OSTI]

is organized around slides/overheads) 1) Read the paper 2) Take whatever steps necessary to ensure that you constraints on your talk (time, method of presentation, etc.) 5) Determine how many slides/overheads you can use (The ACS recommends spending at least 2 minutes on each slide/overhead)) 6) Determine the levels

Dibble, Theodore

35

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY Contracting for wind generation EPRG to the current Renewable Obligation Certificates, ROCs, where an on-shore wind generator receives one ROC

Aickelin, Uwe

36

arabidopsis cam binding: Topics by E-print Network  

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

limits. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise from de Gispert, Adri 89 www.eprg.group.cam.ac.uk...

37

alternative medicine cam: Topics by E-print Network  

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

limits. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise from de Gispert, Adri 97 www.eprg.group.cam.ac.uk...

38

acid metabolism cam: Topics by E-print Network  

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

limits. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise from de Gispert, Adri 128 www.eprg.group.cam.ac.uk...

39

alternative medicines cam: Topics by E-print Network  

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

limits. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise from de Gispert, Adri 97 www.eprg.group.cam.ac.uk...

40

action management cam: Topics by E-print Network  

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

limits. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise from de Gispert, Adri 92 www.eprg.group.cam.ac.uk...

Note: This page contains sample records for the topic "dual overhead cam" 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

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

are efficiency, sustainability and security of energy supplies (Euwww.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Conceptualizing Energy Security EPRG Working Paper 1123 Cambridge Working Paper in Economics 1151 Christian Winzer Energy security is one of the main

Aickelin, Uwe

42

Engine testing of ceramic cam-roller followers  

SciTech Connect (OSTI)

For several years, DDC has been developing monolithic ceramic heat engine components. One of the components, developed for an application in our state-of-the-art on-highway, heavy-duty diesel engine, the Series 60, is a silicon nitride cam-roller follower. Prior to starting this program, each valve train component in the Series 60 was considered for conversion to a ceramic material. Many advantages and disadvantages (benefits and risks) were considered. From this effort, one component was selected, the cam-roller follower. Using a system design approach, a ceramic cam-roller follower offered functional improvement at a reasonable cost. The purpose of the project was to inspect and test 100 domestically produced silicon nitride cam-roller followers built to the requirements of the DDC series 60 engine.

Kalish, Y. (Detroit Diesel Corp., MI (United States))

1992-04-01T23:59:59.000Z

43

Engine testing of ceramic cam-roller followers. Final report  

SciTech Connect (OSTI)

For several years, DDC has been developing monolithic ceramic heat engine components. One of the components, developed for an application in our state-of-the-art on-highway, heavy-duty diesel engine, the Series 60, is a silicon nitride cam-roller follower. Prior to starting this program, each valve train component in the Series 60 was considered for conversion to a ceramic material. Many advantages and disadvantages (benefits and risks) were considered. From this effort, one component was selected, the cam-roller follower. Using a system design approach, a ceramic cam-roller follower offered functional improvement at a reasonable cost. The purpose of the project was to inspect and test 100 domestically produced silicon nitride cam-roller followers built to the requirements of the DDC series 60 engine.

Kalish, Y. [Detroit Diesel Corp., MI (United States)

1992-04-01T23:59:59.000Z

44

Availability Analysis of the Ventilation Stack CAM Interlock System  

E-Print Network [OSTI]

Ventilation Stack Continuous Air Monitor (CAM) Interlock System failure modes, failure frequencies, and system availability have been evaluated for the RPP. The evaluation concludes that CAM availability is as high as assumed in the safety analysis and that the current routine system surveillance is adequate to maintain this availability credited in the safety analysis, nor is such an arrangement predicted to significantly improve system availability.

Young, J

2000-01-01T23:59:59.000Z

45

Perfromance analysis of the Parallel Community Atmosphere Model (CAM) application  

E-Print Network [OSTI]

OF FIGURES FIGURE Page 1 CAM Flow of Execution .????????????????????......10 2 CAM Flow Inside Stepon????????????????????......10 3 Runtime Comparison of the T31 Dataset on the Four Platforms??????...23 4 Runtime Comparison of the T42... Dataset on the Four Platforms??????...23 5 Runtime Comparison of the T85 Dataset on the Four Platforms??????...24 6 Scalability Comparison of the 3 Datasets on DataStar P655???????.....25 7 Relative Speedup of the 3 Datasets on DataStar P655...

Shawky Sharkawi, Sameh Sherif

2009-06-02T23:59:59.000Z

46

Dual capacity reciprocating compressor  

DOE Patents [OSTI]

A multi-cylinder compressor particularly useful in connection with northern climate heat pumps and in which different capacities are available in accordance with reversing motor rotation is provided with an eccentric cam on a crank pin under a fraction of the connecting rods, and arranged for rotation upon the crank pin between opposite positions 180[degree] apart so that with cam rotation on the crank pin such that the crank throw is at its normal maximum value all pistons pump at full capacity, and with rotation of the crank shaft in the opposite direction the cam moves to a circumferential position on the crank pin such that the overall crank throw is zero. Pistons whose connecting rods ride on a crank pin without a cam pump their normal rate with either crank rotational direction. Thus a small clearance volume is provided for any piston that moves when in either capacity mode of operation. 6 figs.

Wolfe, R.W.

1984-10-30T23:59:59.000Z

47

Dual capacity reciprocating compressor  

DOE Patents [OSTI]

A multi-cylinder compressor 10 particularly useful in connection with northern climate heat pumps and in which different capacities are available in accordance with reversing motor 16 rotation is provided with an eccentric cam 38 on a crank pin 34 under a fraction of the connecting rods, and arranged for rotation upon the crank pin between opposite positions 180.degree. apart so that with cam rotation on the crank pin such that the crank throw is at its normal maximum value all pistons pump at full capacity, and with rotation of the crank shaft in the opposite direction the cam moves to a circumferential position on the crank pin such that the overall crank throw is zero. Pistons 24 whose connecting rods 30 ride on a crank pin 36 without a cam pump their normal rate with either crank rotational direction. Thus a small clearance volume is provided for any piston that moves when in either capacity mode of operation.

Wolfe, Robert W. (Wilkinsburg, PA)

1984-01-01T23:59:59.000Z

48

Development and application of composite overhead ground wire with optical fibers  

SciTech Connect (OSTI)

A overhead ground wire composed with optical fibers has been developed, as well as the accessories and the joints. The overhead ground wire is provided with an aluminum pipe at the core thereof in which the optical fibers are inserted. The composite overhead ground wire with optical fibers was installed for the Kaga-Reinan 500 kV overhead transmission line in autumn, 1981 for the purposes of observing lightning and using as telecommunication line, as well. After the successful performance of the optical fiber, especially in view of transmission loss after installation, has been proved, the composite overhead ground wire is now being checked for the purposes as stated above. The ground wire was also installed for the Tsuruga Test Line at about the same time and investigations were started to confirm the reliability of the optical fiber to be over a long period of time under severe meteorological conditions such as strong winds and icing. The construction of the composite ground wire with optical fibers is such that the optical fibers contained therein are not restrained by the ground wire itself. This enables insertion and pulling out of optical fiber cables. Tests were conducted at certain sections of the Kaga-Reinan Line to confirm that there was no change in the performance of the optical fibers due to such operations of insertion and pulling out. This report briefly discusses the development of the composite ground wire with optical fibers, its installation and the test results.

Tsujimoto, K.; Kato, T.; Okazato, A.; Sakurada, H.

1983-05-01T23:59:59.000Z

49

Proceedings of the Inspection and Assessment of Overhead Transmission Line Equipment Workshop: 13-15 May 2003, Monterey, CA  

SciTech Connect (OSTI)

This report contains papers and materials presented at the Inspection and Assessment of Overhead Transmission Line Equipment Workshop held in Monterey, California in May of 2003.

None

2003-10-01T23:59:59.000Z

50

A Testing Platform for Validation of Overhead Conductor Aging Models and Understanding Thermal Limits  

SciTech Connect (OSTI)

Power system equipment manufacturers and researchers continue to experiment with novel overhead electric conductor designs that support better conductor performance and address congestion issues. To address the technology gap in testing these novel designs, Oak Ridge National Laboratory constructed the Powerline Conductor Accelerated Testing (PCAT) facility to evaluate the performance of novel overhead conductors in an accelerated fashion in a field environment. Additionally, PCAT has the capability to test advanced sensors and measurement methods for accessing overhead conductor performance and condition. Equipped with extensive measurement and monitoring devices, PCAT provides a platform to improve/validate conductor computer models and assess the performance of novel conductors. The PCAT facility and its testing capabilities are described in this paper.

Irminger, Philip [ORNL; Starke, Michael R [ORNL; Dimitrovski, Aleksandar D [ORNL; Young II, Marcus Aaron [ORNL; Rizy, D Tom [ORNL; Stovall, John P [ORNL; Overholt, Philip N [U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability (OE)

2014-01-01T23:59:59.000Z

51

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY Reforming Small Power Systems under Rabindra Nepal and Tooraj Jamasb The pioneering electricity sector reforms in developing Latin American of `successful and comprehensive electricity reforms' in many less-developed countries like Nepal. Nepal's power

Aickelin, Uwe

52

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Reforming Small Power Systems under Political Nepal and Tooraj Jamasb This paper assesses the electricity sector reforms across small power systems make power sector reform in Nepal and similar small systems a more complex process. As international

Aickelin, Uwe

53

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

valuation method (CVM) to investigate information effects in the valuation of electricity and waterwww.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY Information Effects in Valuation of Electricity and Water Service Attributes Using Contingent Valuation EPRG Working Paper 1127 Cambridge Working

Aickelin, Uwe

54

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

factors that affect WTP for the attributes considered. Keywords Contingent Valuation Method, Willingnesswww.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Information Effects in Valuation of Electricity and Water Service Attributes Using Contingent Valuation EPRG Working Paper 1127 Cambridge Working Paper

Aickelin, Uwe

55

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY The Economics of the Nord Stream with the construction of the Yamal-Europe pipeline in the 1990s and continued more recently with the Nord Stream west-European clients. The Nord Stream project has been politically controversial since its inception

Aickelin, Uwe

56

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract The Economics of the Nord Stream Pipeline System M. Reiner We calculate the total cost of building Nord Stream and compare its levelised unit cost of shipping through Nord Stream is clearly lower than using the Ukrainian route and is only

Aickelin, Uwe

57

Observed and CAM3 GCM Sea Surface Wind  

E-Print Network [OSTI]

Observed and CAM3 GCM Sea Surface Wind Speed Distributions: Characterization, Comparison, and Bias climatological surface wind speed probability density functions (PDFs) estimated from observations and use them to evaluate, for the first time, contemporaneous wind PDFs predicted by a GCM. The ob- servations include NASA

Zender, Charles

58

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

. The models are used to estimate the benefits of electricity locational marginal pricing (LMP) that arise fromwww.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Locational-based Coupling of Electricity Markets the effects of varying system characteristics on the magnitude of the locational-based unit commitment

de Gispert, Adrià

59

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

of the nuclear element of the energy decision process is #12;www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON, energy efficiency, distributed power generation and renewable energy sources. Opponents to nuclear power and Nuclear Power Generation EPRG Working Paper EPRG 0912 John Ash The issue of whether to include nuclear

Aickelin, Uwe

60

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY Nuclear Energy in the Enlarged with with nuclear energy has also increased markedly in recent years. Two contrasting examples of nuclear experience to concerns for Europe's energy security. As citizens in these countries shift to electric heating

Aickelin, Uwe

Note: This page contains sample records for the topic "dual overhead cam" 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

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER  

E-Print Network [OSTI]

www.eprg.group.cam.ac.uk EPRGWORKINGPAPER Abstract Nuclear Energy in the Enlarged European Union of nuclear energy and notes that it has shifted significantly as the European Union has grown from 15 member states to 27. The proportion of member states with nuclear energy experience has increased markedly. Also

Aickelin, Uwe

62

www.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY  

E-Print Network [OSTI]

). There are resource shortages already in the nuclear energy industry, and currently the Supplier to the nuclear in existence. The latter problems pose a risk for the Suppliers to operators in the nuclear energy industrywww.eprg.group.cam.ac.uk EPRGWORKINGPAPERNON-TECHNICALSUMMARY Third Party Nuclear Liability

Aickelin, Uwe

63

A Novel Low-overhead Delay Testing Technique for Arbitrary Two-Pattern Test Application  

E-Print Network [OSTI]

in manufacturing test to complement stuck-at-fault testing. Design- for-testability techniques, such as enhanced as an alternative to the enhanced scan based delay fault testing method, with significantly less design overhead testing, transition in the state inputs is induced by shifting the scan values by one bit position

Paris-Sud XI, Université de

64

An Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure Employing Dedicated Encryption  

E-Print Network [OSTI]

network, and Internet. The sensor nodes, such as Phasor Measuring Units (PMUs) and Smart Meters (SMs expensive to equip each tiny IT device with AC to DC convertor; (ii) the smart- meters are twoAn Approach for Reduction of the Security Overhead in Smart Grid Communication Infrastructure

Kavcic, Aleksandar

65

Compiler-Directed Region-Based Security for Low-Overhead Software Vijay Kongubangaram  

E-Print Network [OSTI]

Compiler-Directed Region-Based Security for Low-Overhead Software Protection Vijay Kongubangaram Department of Computer Science The George Washington University Washington, DC vijaykpk@gwu.edu Olga Gelbart@gwu.edu Abstract Software security has become a prominent area of re- search in recent years, with research efforts

Simha, Rahul

66

Adaptive SSL: Design, Implementation and Overhead Analysis submission for Work-in-Progress/Application Paper track.  

E-Print Network [OSTI]

Adaptive SSL: Design, Implementation and Overhead Analysis submission for Work an adaptation controller for SSL (Secure Socket Layer), called Adaptive SSL. 1 Introduction Applications adaptation of the Secure Socket Layer (SSL) protocol [3]. Adaptive SSL (ASSL) aims to provide appropriate se

Newcastle upon Tyne, University of

67

Evaluation of the Performance/Energy Overhead in DSP Video Decoding and its Implications  

E-Print Network [OSTI]

Evaluation of the Performance/Energy Overhead in DSP Video Decoding and its Implications Yahia is considered as one of the most compute and energy intensive application in energy constrained mobile devices the performance and the energy consumption. However, in DSP video decoding, the inter-processor communication

68

A new expression for the ground transient resistance matrix elements of multiconductor overhead transmission lines  

E-Print Network [OSTI]

transmission lines F. Rachidi a, *, S.L. Loyka b , C.A. Nucci c , M. Ianoz a a Swiss Federal Institute The ground impedance matrix elements of a multiconductor overhead transmission line do not have analytical-singular, and which describe, within the limits of transmission line theory, both the early-time and late

Loyka, Sergey

69

Reducing the Replacement Overhead on COMA Protocols for Workstation-Based Architectures  

E-Print Network [OSTI]

Reducing the Replacement Overhead on COMA Protocols for Workstation-Based Architectures Diego R discuss the behavior of the replacement mechanism of well-known COMA protocols applied to a loosely replacement mecha- nism in order to select the destination node of a replacement transaction without

Llanos, Diego R.

70

ChemCam rock laser for Mars Science Laboratory "Curiosity"  

ScienceCinema (OSTI)

Los Alamos has a long history of space-related instruments, tied primarily to its role in defense-related treaty verification. Space-based detectors have helped determine the differences between signals from lightning bolts and potential nuclear explosions. LANL-developed gamma-ray detection instruments first revealed the existence of what we now know as gamma-ray bursts, an exciting area of astrophysical research. And the use of LANL instruments on varied space missions continues with such products as the ChemCam rock laser for NASA, shown here. The Engineering Model of the ChemCam Mars Science Laboratory rover instrument arrived at NASA's Jet Propulsion Laboratory on February 6, 2008. The Flight Model was shipped in August, 2010 for installation on the rover at JPL. ChemCam will use imaging and laser-induced breakdown spectroscopy (LIBS) to determine rock and soil compositions on Mars, up to 9 meters from the rover. The engineering model is being integrated into the rover test bed for the development and testing of the rover software. The actual flight model components were concurrently assembled at Los Alamos and in Toulouse, France. The Mars Science Laboratory is scheduled to launch in 2011. Animations courtesy of JPL/NASA.

Wiens, Roger

2014-08-12T23:59:59.000Z

71

ChemCam Rock Laser for the Mars Science Laboratory  

ScienceCinema (OSTI)

Los Alamos has a long history of space-related instr... Los Alamos has a long history of space-related instruments, tied primarily to its role in defense-related treaty verification. Space-based detectors have helped determine the differences between signals from lightning bolts and potential nuclear explosions. LANL-developed gamma-ray detection instruments first revealed the existence of what we now know as gamma-ray bursts, an exciting area of astrophysical research. And the use of LANL instruments on varied space missions continues with such products as the ChemCam rock laser for NASA, shown here. The Engineering Model of the ChemCam Mars Science Laboratory rover instrument arrived at NASA's Jet Propulsion Laboratory on February 6, 2008. ChemCam will use imaging and laser-induced breakdown spectroscopy (LIBS) to determine rock and soil compositions on Mars, up to 9 meters from the rover. The engineering model is being integrated into the rover test bed for the development and testing of the rover software. The actual flight model components are concurrently being assembled at Los Alamos and in Toulouse, France, and will be delivered to JPL in July. The Mars Science Laboratory is scheduled to launch in 2009. Animations courtesy of JPL/NASA.

LANL

2009-09-01T23:59:59.000Z

72

IMPEE PhD Opportunity Project title: LightFoot PhD A PhD Investigation Lightning Protection of HV Overhead Lines with Non-Ideal  

E-Print Network [OSTI]

to simulate this behaviour. This is to provide guidance to overhead line design engineers on lightening Overhead Lines with Non-Ideal Tower Footing Resistance Supervisor(s): Dr Jonathan Swingler j.swingler@hw.ac.uk Abstract LightFoot PhD ­ A PhD Investigation Lightning Protection of HV Overhead Lines with Non-Ideal Tower

Greenaway, Alan

73

REPORT ON THE ANALYSIS OF WAC SAMPLES FROM EVAPORATOR OVERHEADS FOR 2011  

SciTech Connect (OSTI)

This report tabulates the chemical analysis of the 3H, 2H and 2F evaporator overhead samples including the inorganic, organic, and radionuclide species according the ETP WAC (rev.4). In addition, the physical properties including pH, total suspended solids, and average particle size are listed for each sample. The report identifies all sample receipt dates, preparation methods, and analyses completed to accumulate these values. All values were found to be within the ETP WAC specifications for WWCT except for the {sup 137}Cs concentration for the 2F sample which was slightly above the limit ({approx}5%). However, tank farm personnel sample each tank overhead for beta/gamma prior to transfer using a pulse height analyzer and these field readings were all well within limits. Additional actions will be taken to help understand the reason in the discrepancy of the field measurement versus laboratory analysis.

Washington, A.

2012-03-29T23:59:59.000Z

74

Characterization Results For The 2013 HTF 3H Evaporator Overhead Samples  

SciTech Connect (OSTI)

This report tabulates the radiochemical analysis of the 3H evaporator overhead sample for {sup 137}Cs, {sup 90}Sr, and {sup 129}I to meet the requirements in the Effluent Treatment Project (ETP) Waste Acceptance Criteria (WAC) (rev. 6). This report identifies the sample receipt date, preparation method, and analysis performed in the accumulation of the listed values. All data was found to be within the ETP WAC (rev. 6) specification for the Waste Water Collection Tanks (WWCT).

Washington, A. L. II

2013-12-04T23:59:59.000Z

75

Meteorological conditions associated with the full-span galloping oscillations of overhead transmission lines  

E-Print Network [OSTI]

transmission lines J. C.R. Hunt, M.A., Ph.D., A.F.I.M.A., and M.D. Rowbottom,B.Sc., PhJD., A.F.I.M.A. Indexing transmission lines over a 7-year period have been correlated in the form of histograms of number of faults-span galloping oscillations of ice-accreted bundled overhead transmission lines. The main assumption made

Hunt, Julian

76

LANL's ChemCam conducts first laser test over the weekend | National...  

National Nuclear Security Administration (NNSA)

This composite image, with magnified insets, depicts the first laser test by the Chemistry and Camera, or ChemCam, instrument aboard NASA's Curiosity Mars rover. Image credit:...

77

ChemCam all-women's operations day  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant naval CharlesitMcIntoshChemCam

78

ChemCam laser first analyses yield beautiful results  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser first

79

ChemCam is having a blast on Mars  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck In & Registration CheckChelseaChemCam Is

80

A Prospective, Multicenter Study of Complementary/Alternative Medicine (CAM) Utilization During Definitive Radiation for Breast Cancer  

SciTech Connect (OSTI)

Purpose: Although complementary and alternative medicine (CAM) utilization in breast cancer patients is reported to be high, there are few data on CAM practices in breast patients specifically during radiation. This prospective, multi-institutional study was conducted to define CAM utilization in breast cancer during definitive radiation. Materials/Methods: A validated CAM instrument with a self-skin assessment was administered to 360 Stage 0-III breast cancer patients from 5 centers during the last week of radiation. All data were analyzed to detect significant differences between users/nonusers. Results: CAM usage was reported in 54% of the study cohort (n=194/360). Of CAM users, 71% reported activity-based CAM (eg, Reiki, meditation), 26% topical CAM, and 45% oral CAM. Only 16% received advice/counseling from naturopathic/homeopathic/medical professionals before initiating CAM. CAM use significantly correlated with higher education level (P<.001), inversely correlated with concomitant hormone/radiation therapy use (P=.010), with a trend toward greater use in younger patients (P=.066). On multivariate analysis, level of education (OR: 6.821, 95% CI: 2.307-20.168, P<.001) and hormones/radiation therapy (OR: 0.573, 95% CI: 0.347-0.949, P=.031) independently predicted for CAM use. Significantly lower skin toxicity scores were reported in CAM users vs nonusers, respectively (mild: 34% vs 25%, severe: 17% vs 29%, P=.017). Conclusion: This is the first prospective study to assess CAM practices in breast patients during radiation, with definition of these practices as the first step for future investigation of CAM/radiation interactions. These results should alert radiation oncologists that a large percentage of breast cancer patients use CAM during radiation without disclosure or consideration for potential interactions, and should encourage increased awareness, communication, and documentation of CAM practices in patients undergoing radiation treatment for breast cancer.

Moran, Meena S., E-mail: meena.moran@yale.edu [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Department of Radiation Therapy, William W. Backus Hospital, Norwich, Connecticut (United States); Ma Shuangge [Department of Epidemiology and Public Health, Yale University, New Haven, Connecticut (United States)] [Department of Epidemiology and Public Health, Yale University, New Haven, Connecticut (United States); Jagsi, Reshma [University of Michigan, Department of Radiation Oncology, Ann Arbor, MI (United States)] [University of Michigan, Department of Radiation Oncology, Ann Arbor, MI (United States); Yang, Tzu-I Jonathan [Yale University School of Medicine, New Haven, Connecticut (United States)] [Yale University School of Medicine, New Haven, Connecticut (United States); Higgins, Susan A. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States) [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Department of Radiation Therapy, Shoreline Medical Center, Guilford, Connecticut (United States); Weidhaas, Joanne B. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States)] [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Wilson, Lynn D. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States) [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Department of Radiation Therapy, Lawrence and Memorial Hospital, New London, Connecticut (United States); Lloyd, Shane [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States)] [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Peschel, Richard [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States) [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States); Department of Radiation Therapy, Lawrence and Memorial Hospital, New London, Connecticut (United States); Gaudreau, Bryant [Department of Radiation Therapy, William W. Backus Hospital, Norwich, Connecticut (United States)] [Department of Radiation Therapy, William W. Backus Hospital, Norwich, Connecticut (United States); Rockwell, Sara [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States)] [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut (United States)

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

DOE-HDBK-1143-2001; Radiological Control Training for Supervisors - Overheads  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana. DOCUMENTSofDATE M a y 9, 2005 REPLY TO530-98 October 199813.1 OverheadControl

82

Unusual Water Relations in the CAM Atmospheric Epiphyte Tillandsia Usneoides L. (Bromeliaceae)  

E-Print Network [OSTI]

Past studies have reported two unusual aspects of the water relations of the atmospheric CAM epiphyte Tillandsia usneoides L. (Bromeliaceae): a drought stimulation of nocturnal C02 uptake, and nocturnal absorption of ...

Martin, Craig E.; Schmitt, Andreas K.

1989-01-01T23:59:59.000Z

83

GammaCam Technology Demonstration at ORNL Buildings 3026C and 3026D  

Broader source: Energy.gov [DOE]

The GammaCam system is an effective tool for remotely identifying high gamma radiation in radioactive environments.† Its versatility allows the user to perform preliminary characterization of an...

84

Nonlinear System Modeling, Optimal Cam Design, and Advanced System Control for an Electromechanical Engine Valve Drive  

E-Print Network [OSTI]

A cam-based shear force-actuated electromechanical valve drive system offering variable valve timing in internal combustion engines was previously proposed and demonstrated. To transform this concept into a competitive ...

Qiu, Yihui

85

A near-Zero Run-time Energy Overhead within a Computation Outsourcing Framework for Energy Management in Mobile Devices  

E-Print Network [OSTI]

incurring a near-Zero run-time overhead. Key Words- Energy Management, Outsourcing, Smart Spaces, Energy Monitor, Battery Monitor. 1. Introduction Energy/Power management in mobile devices has been and continues and therefore their energy consumption must be managed. The energy problem has been and continues to be tackled

Helal, Abdelsalam

86

Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks  

E-Print Network [OSTI]

1 Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks Chun-enhanced and standard IEEE 802.11 nodes can coexist in a MANET is also discussed. Keywords: mobile ad hoc network, promiscuous mode, broadcast, IEEE 802.11, routing. #12;2 1. Introduction In mobile ad hoc networks (MANETs

Chen, Sheng-Wei

87

Dual Plane Imaging  

E-Print Network [OSTI]

We outline a technique called Dual Plane Imaging which should significantly improve images which would otherwise be blurred due to atmospheric turbulence. The technique involves capturing all the spatial, directional and temporal information about the arriving photons and processing the data afterwards to produce the sharpened images. The technique has particular relevance for imaging at around 400-1000nm on extremely large telescopes (ELTs).

Parry, Ian

2015-01-01T23:59:59.000Z

88

Calibrating the ChemCam LIBS for carbonate minerals on Mars  

SciTech Connect (OSTI)

The ChemCam instrument suite on board the NASA Mars Science Laboratory (MSL) rover includes the first LIBS instrument for extraterrestrial applications. Here we examine carbonate minerals in a simulated martian environment using the LIDS technique in order to better understand the in situ signature of these materials on Mars. Both chemical composition and rock type are determined using multivariate analysis (MVA) techniques. Composition is confirmed using scanning electron microscopy (SEM) techniques. Our initial results suggest that ChemCam can recognize and differentiate between carbonate materials on Mars.

Wiens, Roger C [Los Alamos National Laboratory; Clegg, Samuel M [Los Alamos National Laboratory; Ollila, Ann M [Los Alamos National Laboratory; Barefield, James E [Los Alamos National Laboratory; Lanza, Nina [Los Alamos National Laboratory; Newsom, Horton E [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

89

Beam Sampling for the Infinite Hidden Markov Model Jurgen Van Gael jv279@cam.ac.uk  

E-Print Network [OSTI]

267@cam.ac.uk Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK Yee Whye Teh Zoubin Ghahramani zoubin@eng.cam.ac.uk Department of Engineering, University of Cambridge, Cambridge CB2 models (Es- cobar & West, 1995; Rasmussen, 2000) for cluster- ing heterogeneous data and density

Ghahramani, Zoubin

90

Larval red snapper (Lutjanus cam-pechanus) spend approximately 26 days  

E-Print Network [OSTI]

366 Larval red snapper (Lutjanus cam- pechanus) spend approximately 26 days in the plankton, prior diet differences from shifts that are due to habitat. Previous red snapper diet studies have focused and Bryan, 1975). Camber (1955) described the diets of 15 "small red snapper" from Campeche Banks

91

Testing cloud microphysics parameterizations in NCAR CAM5 with ISDAC and M-PACE observations  

E-Print Network [OSTI]

Testing cloud microphysics parameterizations in NCAR CAM5 with ISDAC and M-PACE observations October 2011; accepted 26 October 2011; published 24 December 2011. [1] Arctic clouds simulated-Direct Aerosol Campaign (ISDAC) and Mixed-Phase Arctic Cloud Experiment (M-PACE), which were conducted at its

92

OpenCV WebCam Applications in an Arduino-based Rover  

E-Print Network [OSTI]

OpenCV WebCam Applications in an Arduino-based Rover Valeria Loscr¬īi1 , Nathalie Mitton1 , Emilio Arduino-based Rovers with characteristics of re-programmability, modularity in terms of type and number them. In this paper, we build an Arduino-based platform, that presents some im- portant characteristics

Boyer, Edmond

93

www.phy.cam.ac.uk What is the Physics of  

E-Print Network [OSTI]

`In 2100, the sources of energy on this planet will be either solar or fusion, and the preferred meanswww.phy.cam.ac.uk Inside... What is the Physics of Sustainability? 2 Peter Littlewood's Parting with the University Registrary Jonathan Nicholls at the award ceremony. The urgency of dealing with energy

Steiner, Ullrich

94

UNIVERSITY PLANNING AND BUDGET ADVISORY COMMITTEE, CAM 172.20 (formerly the University Budget Advisory Committee)  

E-Print Network [OSTI]

UNIVERSITY PLANNING AND BUDGET ADVISORY COMMITTEE, CAM 172.20 (formerly the University Budget Advisory Committee) Functions The University Planning and Budget Advisory Committee is responsible for providing advice to the President on the relationship between long-range planning and budget development

Sze, Lawrence

95

Appendix: Mercury Emissions used in CAM-Chem/Hg model. 1. Anthropogenic emissions  

E-Print Network [OSTI]

Appendix: Mercury Emissions used in CAM-Chem/Hg model. 1. Anthropogenic emissions The anthropogenic emission of mercury is directly adopted from global mercury emission inventory [Pacyna et al., 2005]. The anthropogenic emissions are shown in annual averaged total mercury emissions. (Unit: ¬Ķg/m2 /day) 2. Land

Meskhidze, Nicholas

96

Multiple C-terminal tail Ca2 /CaMs regulate  

E-Print Network [OSTI]

Findeisen1,2 , Elizabeth S Cooley1,2 , Ehud Y Isacoff3,4,5,7 and Daniel L Minor Jr1,2,6,7, * 1- region is labile, whereas Ca2√ĺ /CaM bound to the IQ domain is not. Furthermore, neither of lobes of apo

Lim, Wendell

97

The Cyborg Astrobiologist: Porting from a wearable computer to the Astrobiology Phone-cam  

E-Print Network [OSTI]

We have used a simple camera phone to significantly improve an `exploration system' for astrobiology and geology. This camera phone will make it much easier to develop and test computer-vision algorithms for future planetary exploration. We envision that the `Astrobiology Phone-cam' exploration system can be fruitfully used in other problem domains as well.

Alexandra Bartolo; Patrick C. McGuire; Kenneth P. Camilleri; Christopher Spiteri; Jonathan C. Borg; Philip J. Farrugia; Jens Ormo; Javier Gomez-Elvira; Jose Antonio Rodriguez-Manfredi; Enrique Diaz-Martinez; Helge Ritter; Robert Haschke; Markus Oesker; Joerg Ontrup

2007-07-05T23:59:59.000Z

98

Journal of Computational and Applied Mathematics 208 (2007) 7281 www.elsevier.com/locate/cam  

E-Print Network [OSTI]

to the process of modelling a groundwater system. In an unconfined aquifer, the problem is more complex because groundwater estimation; Unconfined aquifer 1. Introduction It is common to assume that groundwater flow.elsevier.com/locate/cam The reconstruction of groundwater parameters from head data in an unconfined aquifer Ian Knowlesa, , Aimin Yanb a

Knowles, Ian W.

99

Testing cloud microphysics parameterizations in NCAR CAM5 with ISDAC and M-PACE observations  

SciTech Connect (OSTI)

Arctic clouds simulated by the National Center for Atmospheric Research (NCAR) Community Atmospheric Model version 5 (CAM5) are evaluated with observations from the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Indirect and Semi-Direct Aerosol Campaign (ISDAC) and Mixed-Phase Arctic Cloud Experiment (M-PACE), which were conducted at its North Slope of Alaska site in April 2008 and October 2004, respectively. Model forecasts for the Arctic spring and fall seasons performed under the Cloud-Associated Parameterizations Testbed framework generally reproduce the spatial distributions of cloud fraction for single-layer boundary-layer mixed-phase stratocumulus and multilayer or deep frontal clouds. However, for low-level stratocumulus, the model significantly underestimates the observed cloud liquid water content in both seasons. As a result, CAM5 significantly underestimates the surface downward longwave radiative fluxes by 20-40 W m{sup -2}. Introducing a new ice nucleation parameterization slightly improves the model performance for low-level mixed-phase clouds by increasing cloud liquid water content through the reduction of the conversion rate from cloud liquid to ice by the Wegener-Bergeron-Findeisen process. The CAM5 single-column model testing shows that changing the instantaneous freezing temperature of rain to form snow from -5 C to -40 C causes a large increase in modeled cloud liquid water content through the slowing down of cloud liquid and rain-related processes (e.g., autoconversion of cloud liquid to rain). The underestimation of aerosol concentrations in CAM5 in the Arctic also plays an important role in the low bias of cloud liquid water in the single-layer mixed-phase clouds. In addition, numerical issues related to the coupling of model physics and time stepping in CAM5 are responsible for the model biases and will be explored in future studies.

Liu X.; Lin W.; Xie, S.; Boyle, J.; Klein, S. A.; Shi, X.; Wang, Z.; Ghan, S. J.; Earle, M.; Liu, P. S. K.; Zelenyuk, A.

2011-12-24T23:59:59.000Z

100

Performance Evaluation for Modular, Scalable Overhead Cooling Systems In Data Centers  

SciTech Connect (OSTI)

Scientific and enterprise data centers, IT equipment product development, and research data center laboratories typically require continuous cooling to control inlet air temperatures within recommended operating levels for the IT equipment. The consolidation and higher density aggregation of slim computing, storage and networking hardware has resulted in higher power density than what the raised-floor system design, coupled with commonly used computer rack air conditioning (CRAC) units, was originally conceived to handle. Many existing data centers and newly constructed data centers adopt CRAC units, which inherently handle heat transfer within data centers via air as the heat transfer media. This results in energy performance of the ventilation and cooling systems being less than optimal. Understanding the current trends toward higher power density in IT computing, more and more IT equipment manufacturers are designing their equipment to operate in 'conventional' data center environments, while considering provisions of alternative cooling solutions to either their equipment or supplemental cooling in rack or row systems. Naturally, the trend toward higher power density resulting from current and future generations of servers has, in the meanwhile, created significant opportunities for precision cooling suppliers to engineer and manufacture packaged modular and scalable systems. The modular and scalable cooling systems aim at significantly improving efficiency while addressing the thermal challenges, improving reliability, and allowing for future needs and growth. Such pre-engineered and manufactured systems may be a significant improvement over current design; however, without an energy efficiency focus, their applications could also lead to even lower energy efficiencies in the overall data center infrastructure. The overall goal of the project supported by California Energy Commission was to characterize four commercially available, modular cooling systems installed in a data center. Such modular cooling systems are all scalable localized units, and will be evaluated in terms of their operating energy efficiency in a real data center, respectively, as compared to the energy efficiency of traditional legacy data center cooling systems. The technical objective of this project was to evaluate the energy performance of one of the four commercially available modular cooling systems installed in a data center in Sun Microsystems, Inc. This report is the result of a test plan that was developed with the industrial participants' input, including specific design and operating characteristics of the selected modular localized cooling solution provided by vendor 1. The technical evaluation included monitoring and measurement of selected parameters, and establishing and calculating energy efficiency metrics for the selected cooling product, which is a modular, scalable overhead cooling system. The system was tested in a hot/cold aisle environment without separation, or containment or the hot or cold aisles. The scope of this report is to quantify energy performance of the modular cooling unit in operation as it corresponds to a combination of varied server loads and inlet air temperatures. The information generated from this testing when combined with a concurrent research study to document the energy efficiency of the host data center's central chilled water cooling plant can be used to estimate potential energy savings from implementing modular cooling compared to conventional cooling in data centers.

Xu, TengFang T.

2009-05-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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101

Dual surface interferometer  

DOE Patents [OSTI]

A double-pass interferometer is provided which allows direct measurement of relative displacement between opposed surfaces. A conventional plane mirror interferometer may be modified by replacing the beam-measuring path cube-corner reflector with an additional quarterwave plate. The beam path is altered to extend to an opposed plane mirrored surface and the reflected beam is placed in interference with a retained reference beam split from dual-beam source and retroreflected by a reference cube-corner reflector mounted stationary with the interferometer housing. This permits direct measurement of opposed mirror surfaces by laser interferometry while doubling the resolution as with a conventional double-pass plane mirror laser interferometer system.

Pardue, R.M.; Williams, R.R.

1980-09-12T23:59:59.000Z

102

Dual Tank Fuel System  

DOE Patents [OSTI]

A dual tank fuel system has primary and secondary fuel tanks, with the primary tank including a filler pipe to receive fuel and a discharge line to deliver fuel to an engine, and with a balance pipe interconnecting the primary tank and the secondary tank. The balance pipe opens close to the bottom of each tank to direct fuel from the primary tank to the secondary tank as the primary tank is filled, and to direct fuel from the secondary tank to the primary tank as fuel is discharged from the primary tank through the discharge line. A vent line has branches connected to each tank to direct fuel vapor from the tanks as the tanks are filled, and to admit air to the tanks as fuel is delivered to the engine.

Wagner, Richard William (Albion, NY); Burkhard, James Frank (Churchville, NY); Dauer, Kenneth John (Avon, NY)

1999-11-16T23:59:59.000Z

103

Technical aspects of the sigma factor alarm method in alpha CAMs  

SciTech Connect (OSTI)

Some test must be applied to the low-level count data from alpha continuous air monitors (CAMs) to determine if the count is statistically significant (i.e., different from background). The test should also automatically account for different levels of background (i.e., ambient radon progeny concentrations). The method should, in other words, be as sensitive as possible, automatically desensitize when required, but in such a manner as to not exceed a previously-chosen acceptable false-alarm rate.

Justus, Alan Lawrence [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

104

ChemCam for Mars Science Laboratory rover, undergoing pre-flight testing  

ScienceCinema (OSTI)

Los Alamos National Laboratory and partners developed a laser instrument, ChemCam, that will ride on the elevated mast of the Mars Science Laboratory rover Curiosity. The system allows Curiosity to "zap" rocks from a distance, reading their chemical composition through spectroscopic analysis. In this video, laboratory shaker-table testing of the instrument ensures that all of its components are solidly attached and resistant to damage from the rigors of launch, travel and landing.

None

2014-08-12T23:59:59.000Z

105

Dual Rater Competency Assessment FAQ  

Broader source: Energy.gov [DOE]

The purpose of the dual rater competency assessment is to provide a clearer picture of the individualís developmental needs by combining self-assessment and supervisory input. Together, these two...

106

Comparison of management, overhead, and direct costs of six projects managed by the Department of Energy and Government-Owned, Contractor-Operated Laboratories  

SciTech Connect (OSTI)

The report covers management, overhead, and direct cost data on six DOE projects - three managed directly by DOE, and three managed for DOE by government-owned, contractor-operated (GOCO) laboratories. These data provide comparison for decisions on contracting out for project management services. (GHT)

Not Available

1981-09-30T23:59:59.000Z

107

Increasing the reliability of the shutdown of 500 - 750-kV overhead lines equipped with shunt reactors in an unsuccessful three-phase automatic repeated closure cycle  

SciTech Connect (OSTI)

The reasons for circuit-breaker failures during repeated disconnection of 500 - 750 kV overhead lines with shunt reactors in a cycle of unsuccessful three-phase automatic reconnection (TARC) are analyzed. Recommendations are made for increasing the operating reliability of power transmission lines with shunt reactors when there is unsuccessful reconnection.

Kuz'micheva, K. I.; Merzlyakov, A. S.; Fokin, G. G. [JSC 'R and D Center at Federal Grid Company of the United Power System' (Russian Federation)

2013-05-15T23:59:59.000Z

108

Testing Cloud Microphysics Parameterizations in NCAR CAM5 with ISDAC and M-PACE Observations  

SciTech Connect (OSTI)

Arctic clouds simulated by the NCAR Community Atmospheric Model version 5 (CAM5) are evaluated with observations from the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Indirect and Semi-Direct Aerosol Campaign (ISDAC) and Mixed-Phase Arctic Cloud Experiment (M-PACE), which were conducted at its North Slope of Alaska site in April 2008 and October 2004, respectively. Model forecasts for the Arctic Spring and Fall seasons performed under the Cloud- Associated Parameterizations Testbed (CAPT) framework generally reproduce the spatial distributions of cloud fraction for single-layer boundary layer mixed-phase stratocumulus, and multilayer or deep frontal clouds. However, for low-level clouds, the model significantly underestimates the observed cloud liquid water content in both seasons and cloud fraction in the Spring season. As a result, CAM5 significantly underestimates the surface downward longwave (LW) radiative fluxes by 20-40 W m-2. The model with a new ice nucleation parameterization moderately improves the model simulations by increasing cloud liquid water content in mixed-phase clouds through the reduction of the conversion rate from cloud liquid to ice by the Wegener-Bergeron- Findeisen (WBF) process. The CAM5 single column model testing shows that change in the homogeneous freezing temperature of rain to form snow from -5 C to -40 C has a substantial impact on the modeled liquid water content through the slowing-down of liquid and rain-related processes. In contrast, collections of cloud ice by snow and cloud liquid by rain are of minor importance for single-layer boundary layer mixed-phase clouds in the Arctic.

Liu, Xiaohong; Xie, Shaocheng; Boyle, James; Klein, Stephen A.; Shi, Xiangjun; Wang, Zhien; Lin, Wuyin; Ghan, Steven J.; Earle, Michael; Liu, Peter; Zelenyuk, Alla

2011-12-24T23:59:59.000Z

109

A spectral transform dynamical core option within the Community Atmosphere Model (CAM4)  

SciTech Connect (OSTI)

A spectral transform dynamical core with an 85 spectral truncation resolution (T85) within the Community Atmosphere Model (CAM), version 4, is evaluated within the recently released Community Earth System Model, version 1.0 (CESM) global climate model. The spectral dynamical core option provides a well-known base within the climate model community from which to assess climate behavior and statistics, and its relative computational efficiency for smaller computing platforms allows it to be extended to perform climate length simulations using high-resolution configurations in the near term. To establish the characteristics of the CAM4 T85, an ensemble of simulations covering the present day observational period using forced sea surface temperatures and prescribed sea-ice extent are evaluated. Overall, the T85 ensemble attributes and biases are similar to a companion ensemble of simulations using the one degree finite volume (FV1) dynamical core, relative to observed and model derived datasets. Notable improvements with T85 compared to FV1 include the representation of wintertime Arctic sea level pressure and summer precipitation over the Western Indian subcontinent. The mean and spatial patterns of the land surface temperature trends over the AMIP period are generally well simulated with the T85 ensemble relative to observations, however the model is not able to capture the extent nor magnitude of changes in temperature extremes over the boreal summer, where the changes are most dramatic. Biases in the wintertime Arctic surface temperature and annual mean surface stress fields persist with T85 as with the CAM3 version of T85.

Evans, Katherine J [ORNL; Mahajan, Salil [ORNL; Branstetter, Marcia L [ORNL; McClean, Julie L. [Scripps Institute of Oceanography; Caron, Julie M. [National Center for Atmospheric Research (NCAR); Maltrud, Matthew E. [Los Alamos National Laboratory (LANL); Hack, James J [ORNL; Bader, David C [ORNL; Neale, Rich [National Center for Atmospheric Research (NCAR)

2014-01-01T23:59:59.000Z

110

Dual gravity and E11  

E-Print Network [OSTI]

We consider the equation of motion in the gravity sector that arises from the non-linear realisation of the semi-direct product of E11 and its first fundamental representation, denoted by l1, in four dimensions. This equation is first order in derivatives and at low levels relates the usual field of gravity to a dual gravity field. When the generalised space-time is restricted to be the usual four dimensional space-time we show that this equation does correctly describe Einstein's theory at the linearised level. We also comment on previous discussions of dual gravity.

Peter West

2014-11-04T23:59:59.000Z

111

Dual porosity gas evolving electrode  

DOE Patents [OSTI]

A dual porosity electrode is described for use in thermoelectrochemical systems where simultaneous transport of gas and liquid into and/or out of the electrode is required. The electrode includes catalytic electrode particles having diameters ranging from about 25 to 100 angstroms. The catalytic electrode particles are anchored to a support network in clusters which have internal pores ranging in size from 25 to 100 angstroms. The pores between the clusters range in size from between about 1 to 20 microns. A method for making the dual porosity electrodes is also disclosed.

Townsend, C.W.

1994-11-15T23:59:59.000Z

112

ChemCam laser sets its sights on first martian target  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and Userof a blast-resistant navalChemCam laser firstFirst

113

DUAL-OUTPUT HOLA FIRMWARE AND TESTS  

E-Print Network [OSTI]

another channel (thus, "dual-output" HOLA) ∑ Another LDC+ROMB block was added to receive data from side S32PCI64 "SOLAR" mezzanine card: Provides access to S-LINK via PCI bus The first prototype of dual-outputDUAL-OUTPUT HOLA FIRMWARE AND TESTS Anton Kapliy Mel Shochet Fukun Tang Daping Weng #12;Summary

114

About CAMS  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearch Highlights MediaFuel Production ASU isAbout CAMD CAMD

115

CAMS Capabilities  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearch HighlightsToolsBESEnergyArchaeologyBylawsSEP 10CAMDCAMS

116

Visiting CAMS  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies | Blandine Jerome Velencia WitherspoonVideo: RadEMSLVisit

117

Evaluation of tropical cloud and precipitation statistics of CAM3 using CloudSat and CALIPSO data  

SciTech Connect (OSTI)

The combined CloudSat and CALIPSO satellite observations provide the first simultaneous measurements of cloud and precipitation vertical structure, and are used to examine the representation of tropical clouds and precipitation in the Community Atmosphere Model Version 3 (CAM3). A simulator package utilizing a model-to-satellite approach facilitates comparison of model simulations to observations, and a revised clustering method is used to sort the subgrid-scale patterns of clouds and precipitation into principal cloud regimes. Results from weather forecasts performed with CAM3 suggest that the model underestimates the horizontal extent of low and mid-level clouds in subsidence regions, but overestimates that of high clouds in ascending regions. CAM3 strongly overestimates the frequency of occurrence of the deep convection with heavy precipitation regime, but underestimates the horizontal extent of clouds and precipitation at low and middle levels when this regime occurs. This suggests that the model overestimates convective precipitation and underestimates stratiform precipitation consistent with a previous study that used only precipitation observations. Tropical cloud regimes are also evaluated in a different version of the model, CAM3.5, which uses a highly entraining plume in the parameterization of deep convection. While the frequency of occurrence of the deep convection with heavy precipitation regime from CAM3.5 forecasts decreases, the incidence of the low clouds with precipitation and congestus regimes increases. As a result, the parameterization change does not reduce the frequency of precipitating convection that is far too high relative to observations. For both versions of CAM, clouds and precipitation are overly reflective at the frequency of the CloudSat radar and thin clouds that could be detected by the lidar only are underestimated.

Zhang, Y; Klein, S; Boyle, J; Mace, G G

2008-11-20T23:59:59.000Z

118

Unusual Outbursting State of a Z Cam-Type Star HL CMa  

E-Print Network [OSTI]

HL CMa is a Z Cam-type dwarf nova which was discovered as an Einstein X-ray source. In addition to normal outbursts and standstills, we noticed the presence of "the third" outbursting state. During this period, the star showed weak outbursts with a long outburst cycle length. We propose that this phenomenon is caused by a heating on the accretion disk. The presence of strong P Cyg feature in the ultraviolet and the unusual presence of high-excitation optical lines could be interpreted as an emerging signature of strong irradiation field. Since the object is still in this unusual state in 2002 March, we encourage X-ray and spectroscopic observations to detect further signatures of high-energy photons and irradiation.

T. Kato

2002-03-20T23:59:59.000Z

119

Simulations of Arctic Mixed-Phase Clouds in Forecasts with CAM3 and AM2 for M-PACE  

SciTech Connect (OSTI)

Simulations of mixed-phase clouds in short-range forecasts with the National Center for Atmospheric Research Community Atmosphere Model version 3 (CAM3) and the Geophysical Fluid Dynamics Laboratory (GFDL) climate model (AM2) for the Mixed-Phase Arctic Cloud Experiment (M-PACE) are performed under the DOE CCPP-ARM Parameterization Testbed (CAPT), which initializes the climate models with analysis data produced from numerical weather prediction (NWP) centers. It is shown that CAM3 significantly underestimates the observed boundary layer mixed-phase clouds and cannot realistically simulate the variations with temperature and cloud height of liquid water fraction in the total cloud condensate based an oversimplified cloud microphysical scheme. In contrast, AM2 reasonably reproduces the observed boundary layer clouds while its clouds contain much less cloud condensate than CAM3 and the observations. Both models underestimate the observed cloud top and base for the boundary layer clouds. The simulation of the boundary layer mixed-phase clouds and their microphysical properties is considerably improved in CAM3 when a new physically based cloud microphysical scheme is used. The new scheme also leads to an improved simulation of the surface and top of the atmosphere longwave radiative fluxes in CAM3. It is shown that the Bergeron-Findeisen process, i.e., the ice crystal growth by vapor deposition at the expense of coexisting liquid water, is important for the models to correctly simulate the characteristics of the observed microphysical properties in mixed-phase clouds. Sensitivity tests show that these results are not sensitive to the analysis data used for model initializations. Increasing model horizontal resolution helps capture the subgrid-scale features in Arctic frontal clouds but does not help improve the simulation of the single-layer boundary layer clouds. Ice crystal number density has large impact on the model simulated mixed-phase clouds and their microphysical properties and needs to be accurately represented in climate models.

Xie, Shaocheng; Boyle, James; Klein, Stephen A.; Liu, Xiaohong; Ghan, Steven J.

2008-02-29T23:59:59.000Z

120

EA-0962: Construction and Routine Operation of a 12-kilovolt Overhead Powerline and Formal Authorization for a 10-inch and 8-inch Fresh Water Pipeline Right-of-Way at Naval Petroleum Reserve No. 1, Kern County, California  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts of the proposal to install an overhead powerline extension from the U.S. Department of Energy's Naval Petroleum Reserve No. 1 (NPR-1) power source to the...

Note: This page contains sample records for the topic "dual overhead cam" 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

SMB Host Processor Overhead  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStoriesSANDIA REPORT SANDSDNTM7/31/13SLACM J-M-1SMB SMB

122

Dual Axis Radiographic Hydrodynamic Test Facility | National...  

National Nuclear Security Administration (NNSA)

Dual Axis Radiographic Hydrodynamic Test Facility | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

123

Conjugate gradient method for dual-dual mixed formulations Gabriel N. Gatica y Norbert Heuer z  

E-Print Network [OSTI]

Conjugate gradient method for dual-dual mixed formulations #3; Gabriel N. Gatica y Norbert Heuer z, the conjugate gradient method with this special inner product can be used as iterative solver. For a model-dual variational formulation, conjugate gradient method. Mathematics subject classi#12;cations (1991). 65N30, 65N22

Heuer, Norbert

124

An Innovative Strategy for Dual Inhibitor Design and Its Application in Dual Inhibition of Human Thymidylate  

E-Print Network [OSTI]

An Innovative Strategy for Dual Inhibitor Design and Its Application in Dual Inhibition of Human (SSAC), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Research Institute to other dual target drug designs. Citation: Arooj M, Sakkiah S, Cao Gp, Lee KW (2013) An Innovative

Lee, Keun Woo

125

The mean climate of the Community Atmosphere Model (CAM4) in forced SST and fully coupled experiments  

SciTech Connect (OSTI)

The Community Atmosphere Model, version 4 (CAM4) was released as the atmosphere component of the Community Climate System Model, version 4 (CCSM4) and is described. The finite volume dynamical core available in CAM3 is now the default due to its superior transport and conservation properties. Deep convection parameterization changes include a dilute plume calculation of convective available potential energy (CAPE) and the introduction of a formulation for Convective Momentum Transport (CMT). For the cloud fraction an additional calculation is performed following macrophysical state updates that provides improved thermodynamic condistancy. A freeze-drying modification is further made to the cloud fraction calculation in very dry environments, such as arctic Winter, where cloud fractionand cloud water estimates were often inconsistant in CAM3. In CAM4 the finite volume dynamical core leads to a degradation in the excessive trade-wind simulation, but with an accompanying reduction in zonal stresses at higher latitudes. Plume dilution leads to a moister deep tropics alleviating much of the mid-tropospheric dry biases and reduces the persistant precipitation biases over the Arabian peninsular and the southern Indian ocean during the Indian Monsoon. CMT reduces much of the excessive trade-wind biases in eastern ocean basins. The freeze drying modification alleviates much of the high latitude, winter-time excessive cloud bias and improves the associated surface cloud-related energy budget, but the updated cloud macrophysical calculation generally leads to reduced cloud fraction and cloud forcing away from high latitudes. Although there are marginal improvements in time-averaged, large-scale hydrology there are signficant improvements in regional climate features such as the generation of tropical and propagation of stationary waves from the Pacific into mid-latitudes and in the seasonal frequency of Northern Hemisphere blocking events. A 1? versus 2? horizontal resolution of the finite volume 24 dynamical core exhibits signficiant improvements in model climate. Improvements in the fully coupled mean climate between CAM3 and CAM4 are also much more signficant than in forced Sea Surface Temperature (SST) simulations. Furthermore, improvements in the transient characteristics ofthe model climate, documented elsewhere, are substantial.

Neale, Richard; Richter, Jadwiga; Park, Sungsu; Lauritzen, P. H.; Vavrus, Steven J.; Rasch, Philip J.; Zhang, Minghua

2013-07-15T23:59:59.000Z

126

High-Dispersion Spectroscopy of the X-Ray Transient RXTE J0421+560 (= CI Cam) during Outburst  

E-Print Network [OSTI]

We obtained high dispersion spectra of CI Cam, the optical counterpart of XTE J0421+560, two weeks after the peak of its short outburst in 1998 April. The optical counterpart is a supergiant B[e] star emitting a two-component wind. The cool wind (the source of narrow emission lines of neutral and ionized metals) has a velocity of 32 km/s and a temperature near 8000 K. Dense and roughly spherical, it fills the space around the sgB[e] star, and, based on the size of an infrared-emitting dust shell around the system, extends to a radius between 13 - 50 AU. It carries away mass at a high rate, Mdot > 10^(-6) solar masses per year. The hot wind has a velocity in excess of 2500 km/s and a temperature of 1.7 +/-0.3 x 10^4 K. From UV spectra of CI Cam obtained in 2000 March with Hubble Space Telescope, we derive a differential extinction E(B-V) = 0.85 +/- 0.05. We derive a distance to CI Cam > 5 kpc. Based on this revised distance, the X-ray luminosity at the peak of the outburst was L(2-25 keV) > 3.0 x 10^38 erg/s, making CI Cam one of the most luminous X-ray transients. The ratio of quiescent to peak luminosity in the 2 - 25 keV band is < 1.7 x 10^(-6). The compact star in CI Cam is immersed in the dense circumstellar wind from the sgB[e] star and burrows through the wind producing little X-ray emission except for rare transient outbursts. This picture (a compact star traveling in a wide orbit through the dense circumstellar envelope of a sgB[e] star, occasionally producing transient X-ray outbursts) makes CI Cam unique among the known X-ray binaries. Strong circumstantial evidence suggests that the compact object is a black hole, not a neutron star. We speculate that the X-ray outburst was short because the accretion disk around the compact star is fed from a stellar wind and is smaller than disks fed by Roche-lobe overflow.

Edward L. Robinson; Inese I. Ivans; William F. Welsh

2001-10-04T23:59:59.000Z

127

MICROSTRUCTURE AND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE PRECIPITATES  

E-Print Network [OSTI]

and Properties of Dual-Phase Steels, R. A. Kot and J. W.of Niobium Microalloyed Dual- Phase Steel, MetallurgicalAND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE

Gau, J.S.

2014-01-01T23:59:59.000Z

128

Friction Coefficient for Quarks in Supergravity Duals  

E-Print Network [OSTI]

We study quarks moving in strongly-coupled plasmas that have supergravity duals. We compute the friction coefficient of strings dual to such quarks for general static supergravity backgrounds near the horizon. Our results also show that a previous conjecture on the bound has to be modified and higher friction coefficients can be achieved.

E. Antonyan

2006-11-22T23:59:59.000Z

129

Texas Dual Language Program Cost Analysis  

E-Print Network [OSTI]

.......................................................................................................... 4 Texas Dual Language Program Cost Analysis............................................................... 8 Literature Review ............................................................................................................. 8 English... inclusivity, dual language (DL) programs (sometimes referred to as two-way immersion) have seen a rapid increase in Texas and the nation, however, an extensive review of literature indicated that no national or state-wide studies have addressed the issue...

Lara-Alecio, Rafael; Galloway, Martha; Mahadevan, Lakshmi; Mason, Ben; Irby, Beverly J.; Brown, Genevieve; Gůmez, Leo

2010-09-29T23:59:59.000Z

130

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network [OSTI]

CAM Analysis of Policy, Tariff Design, Building Energy Use,14 3.3 Comparison of Utility Tariffs in Japan and the14 Table 4: Electricity Tariffs at Several Facilities in the

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

131

Dual spatial maps of transcript and protein abundance in the...  

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

Dual spatial maps of transcript and protein abundance in the mouse brain. Dual spatial maps of transcript and protein abundance in the mouse brain. Abstract: Integrating...

132

Low and high Temperature Dual Thermoelectric Generation Waste...  

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

Low and high Temperature Dual Thermoelectric Generation Waste Heat Recovery System for Light-Duty Vehicles Low and high Temperature Dual Thermoelectric Generation Waste Heat...

133

Lean NOx Reduction with Dual Layer LNT/SCR Catalysts  

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

PGM & minimize fuel penalty in meeting NOx emission targets (adapted from Gandhi et al., US Patent, 2007) 3 Fundamental Issues for Dual Layer LNT - SCR proximity: Dual...

134

Characterization of Dual-Fuel Reactivity Controlled Compression...  

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

Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) Using Hydrated Ethanol and Diesel Fuel Characterization of Dual-Fuel Reactivity Controlled Compression Ignition (RCCI)...

135

Project Profile: Sensible Heat, Direct, Dual-Media Thermal Energy...  

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

Sensible Heat, Direct, Dual-Media Thermal Energy Storage Module Project Profile: Sensible Heat, Direct, Dual-Media Thermal Energy Storage Module Acciona logo Acciona Solar, under...

136

Sensitive Immunosensor for Cancer Biomarker Based on Dual Signal...  

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

Immunosensor for Cancer Biomarker Based on Dual Signal Amplification Strategy of Graphene Sheets and Multi-Enzyme Sensitive Immunosensor for Cancer Biomarker Based on Dual Signal...

137

POLICY GUIDANCE MEMORANDUM #11A Approval Process for Dual Compensation...  

Office of Environmental Management (EM)

1A Approval Process for Dual Compensation Waivers for Reemployed Annuitants POLICY GUIDANCE MEMORANDUM 11A Approval Process for Dual Compensation Waivers for Reemployed Annuitants...

138

Title V, compliance assurance monitoring (CAM), and the use of any credible evidence (ACE): The effects on compliance and enforcement in the future  

SciTech Connect (OSTI)

Under Title V, facilities are required to determine the compliance status of each air emission source with all applicable requirements. In addition, facilities are required to determine the methods that will be used to demonstrate on-going compliance with these requirements. Under Title V, it is no longer the responsibility of the regulator to determine whether a facility is in compliance; it is the facility`s responsibility to continuously prove they are in compliance. The CAM rule, as drafted, will implement the Enhanced Monitoring (EM) and periodic monitoring requirements of the 1990 Clean Air Act Amendments (CAAA). CAM will require facilities subject to Title V to develop CAM plans for specific emission units at the facility. CAM plans will include the methods that will be used to provide reasonable assurance of continuous compliance with applicable requirements. In addition, the EPA is also proposing to finalize portions of the 1993 EM rule that would allow the use of ACE to determine compliance with emission limits. Reference test methods are the only means currently available to determine compliance with emission limits. The EPA has indicated that, under the ACE rule, even data obtained via CAM will be considered credible evidence in determining the compliance status of a facility. CAM and Title V will require sources to submit large amounts of data to the regulatory agency. The data, upon submittal, are public record and can be used to indicate non-compliance under the ACE rule. Therefore, the burden shift associated with CAM and Title V, in conjunction with the use of ACE, will significantly increase the potential liability of industry. This paper discusses the implications Title V, CAM, and the ACE rule will have on industry as well as the possible effects the regulations will have on enforcement in the future. The paper will provide the perspectives of both plant managers and legal counsel.

Lowery, K.P. [Trinity Consultants Inc., Overland Park, KS (United States); Poffenberger, C.G. [Hogan and Hartson L.L.P., Washington, DC (United States)

1997-12-31T23:59:59.000Z

139

Transcriptome Analysis of Drought-Tolerant CAM plants Agave deserti and Agave tequilana  

SciTech Connect (OSTI)

Agaves are succulent monocotyledonous plants native to hot and arid environments of North America. Because of their adaptations to their environment, including crassulacean acid metabolism (CAM, a water-efficient form of photosynthesis) and existing technologies for ethanol production, agaves have gained attention both as potential lignocellulosic bioenergy feedstocks and models for exploring plant responses to abiotic stress. However, the lack of comprehensive Agave sequence datasets limits the scope of investigations into the molecular-genetic basis of Agave traits. Here, we present comprehensive, high quality de novo transcriptome assemblies of two Agave species, A. tequilana and A. deserti, from short-read RNA-seq data. Our analyses support completeness and accuracy of the de novo transcriptome assemblies, with each species having approximately 35,000 protein-coding genes. Comparison of agave proteomes to those of additional plant species identifies biological functions of gene families displaying sequence divergence in agave species. Additionally, we use RNA-seq data to gain insights into biological functions along the A. deserti juvenile leaf proximal-distal axis. Our work presents a foundation for further investigation of agave biology and their improvement for bioenergy development.

Gross, Stephen M.; Martin, Jeffrey A.; Simpson, June; Wang, Zhong; Visel, Axel

2013-03-25T23:59:59.000Z

140

Dual manifold heat pipe evaporator  

DOE Patents [OSTI]

An improved evaporator section for a dual manifold heat pipe. Both the upper and lower manifolds can have surfaces exposed to the heat source which evaporate the working fluid. The tubes in the tube bank between the manifolds have openings in their lower extensions into the lower manifold to provide for the transport of evaporated working fluid from the lower manifold into the tubes and from there on into the upper manifold and on to the condenser portion of the heat pipe. A wick structure lining the inner walls of the evaporator tubes extends into both the upper and lower manifolds. At least some of the tubes also have overflow tubes contained within them to carry condensed working fluid from the upper manifold to pass to the lower without spilling down the inside walls of the tubes.

Adkins, Douglas R. (Albuquerque, NM); Rawlinson, K. Scott (Albuquerque, NM)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

Dual manifold heat pipe evaporator  

DOE Patents [OSTI]

An improved evaporator section is described for a dual manifold heat pipe. Both the upper and lower manifolds can have surfaces exposed to the heat source which evaporate the working fluid. The tubes in the tube bank between the manifolds have openings in their lower extensions into the lower manifold to provide for the transport of evaporated working fluid from the lower manifold into the tubes and from there on into the upper manifold and on to the condenser portion of the heat pipe. A wick structure lining the inner walls of the evaporator tubes extends into both the upper and lower manifolds. At least some of the tubes also have overflow tubes contained within them to carry condensed working fluid from the upper manifold to pass to the lower without spilling down the inside walls of the tubes. 1 figure.

Adkins, D.R.; Rawlinson, K.S.

1994-01-04T23:59:59.000Z

142

Dual processor vax* 11/780  

SciTech Connect (OSTI)

The design of a dual processor Vax 11/780 built at the Purdue University Electrical Engineering School is described. A standard single processor Vax 11/780 was converted into a dual processor system. A detailed description of hardware modifications performed and a parts list are included. The dual processor Vax is currently running a modified version of the UNIX** (fourth Berkeley distribution) operating system. Because of licensing restrictions, operating system modifications are only covered in general. Finally some performance evaluation is discussed, along with the problems encountered.

Goble, G.H.; Marsh, M.H.

1982-01-01T23:59:59.000Z

143

New Description of Self-Dual Metrics  

E-Print Network [OSTI]

We show that Pleba\\'nski's equation for self-dual metrics is equivalent to a pair of equations describing canonical transformations in 2-dimensional phase spaces. Examples of linearizations of these equations are given.

J. Tafel

2006-02-09T23:59:59.000Z

144

Gravity dual of metastable dynamical supersymmetry breaking  

SciTech Connect (OSTI)

Metastable, supersymmetry-breaking configurations can be created in flux geometries by placing antibranes in warped throats. Via gauge/gravity duality, such configurations should have an interpretation as supersymmetry-breaking states in the dual field theory. In this paper, we perturbatively determine the asymptotic supergravity solutions corresponding to D3-brane probes placed at the tip of the cascading warped deformed conifold geometry, which is dual to an SU(N+M)xSU(N) gauge theory. The backreaction of the antibranes has the effect of introducing imaginary anti-self-dual flux, squashing the compact part of the space and forcing the dilaton to run. Using the generalization of holographic renormalization to cascading geometries, we determine the expectation values of operators in the dual field theory in terms of the asymptotic values of the supergravity fields.

DeWolfe, Oliver [Department of Physics, 390 UCB, University of Colorado, Boulder, Colorado 80309 (United States); Kachru, Shamit; Mulligan, Michael [Department of Physics and SLAC, Stanford University, Stanford, California 94305/94309 (United States)

2008-03-15T23:59:59.000Z

145

Dual Lindstedt series and KAM theorem  

E-Print Network [OSTI]

We prove that exists a Lindstedt series that holds when a Hamiltonian is driven by a perturbation going to infinity. This series appears to be dual to a standard Lindstedt series as it can be obtained by interchanging the role of the perturbation and the unperturbed system. The existence of this dual series implies that a dual KAM theorem holds and, when a leading order Hamiltonian exists that is non degenerate, the effect of tori reforming can be observed with a system passing from regular motion to fully developed chaos and back to regular motion with the reappearance of invariant tori. We apply these results to a perturbed harmonic oscillator proving numerically the appearance of tori reforming. Tori reforming appears as an effect limiting chaotic behavior to a finite range of parameter space of some Hamiltonian systems. Dual KAM theorem, as proved here, applies when the perturbation, combined with a kinetic term, provides again an integrable system.

Marco Frasca

2009-09-09T23:59:59.000Z

146

Sensitivity of MJO to the CAPE lapse time in the NCAR CAM3  

SciTech Connect (OSTI)

Weak and irregular boreal winter MJO in the NCAR CAM3 corresponds to very low CAPE background, which is caused by easy-to-occur and over-dominant deep convection indicating the deep convective scheme uses either too low CAPE threshold as triggering function or too large consumption rate of CAPE to close the scheme. Raising the CAPE threshold from default 70 J/kg to ten times large only enhances the CAPE background while fails to noticeably improve the wind mean state and the MJO. However, lengthening the CAPE lapse time from one to eight hours significantly improved the background in CAPE and winds, and salient features of the MJO. Variances, dominant periods and zonal wave numbers, power spectra and coherent propagating structure in winds and convection associated with MJO are ameliorated and comparable to the observations. Lengthening the CAPE lapse time to eight hours reduces dramatically the cloud base mass flux, which prevents effectively the deep convection from occurring prematurely. In this case, partitioning of deep to shallow convection in MJO active area is about 5:4.5 compared to over 9:0.5 in the control run. Latent heat is significantly enhanced below 600 hPa over the central Indian Ocean and the western Pacific. Such partitioning of deep and shallow convection is argued necessary for simulating realistic MJO features. Although the universal eight hours lies in the upper limit of that required by the quasi-equilibrium theory, a local CAPE lapse time for the parameterized cumulus convection will be more realistic.

LIU, P.; Wang, B.; Meehl, Gerald, A.

2007-09-05T23:59:59.000Z

147

Dual superconducting properties of the QCD vacuum  

E-Print Network [OSTI]

A consistent description of the confining QCD vacuum as a dual superconductor requires a determination of fundamental parameters such as the superconductor correlation length $\\xi$ and the field penetration depth $\\lambda$, which determine whether the superconductor is of type I or type II. We illustrate preliminary results of a lattice determination of $\\xi$ for the case of pure Yang-Mills with two colors, obtained by measuring the temporal correlator of a disorder parameter detecting dual superconductivity.

A. D'Alessandro; M. D'Elia

2005-10-27T23:59:59.000Z

148

Financing, Overhead, and Profit: An In-Depth Discussion of Costs Associated with Third-Party Financing of Residential and Commercial Photovoltaic Systems  

SciTech Connect (OSTI)

Previous work quantifying the non-hardware balance-of-system costs -- or soft costs -- associated with building a residential or commercial photovoltaic (PV) system has left a significant portion unsegmented in an 'other soft costs' category. This report attempts to better quantify the 'other soft costs' by focusing on the financing, overhead, and profit of residential and commercial PV installations for a specific business model. This report presents results from a bottom-up data-collection and analysis of the upfront costs associated with developing, constructing, and arranging third-party-financed residential and commercial PV systems. It quantifies the indirect corporate costs required to install distributed PV systems as well as the transactional costs associated with arranging third-party financing.

Feldman, D.; Friedman, B.; Margolis, R.

2013-10-01T23:59:59.000Z

149

Dual-speed wind turbine generation  

SciTech Connect (OSTI)

Induction generator has been used since the early development of utility-scale wind turbine generation. An induction generator is the generator of choice because of its ruggedness and low cost. With an induction generator, the operating speed of the wind turbine is limited to a narrow range (almost constant speed). Dual- speed operation can be accomplished by using an induction generator with two different sets of winding configurations or by using a dual output drive train to drive two induction generators with two different rated speeds. With single-speed operation, the wind turbine operates at different power coefficients (Cp) as the wind speed varies. Operation at maximum Cp can occur only at a single wind speed. However, if the wind speed.varies across a wider range, the operating Cp will vary significantly. Dual-speed operation has the advantage of enabling the wind turbine to operate at near maximum Cp over a wider range of wind speeds. Thus, annual energy production can be increased. The dual-speed mode may generate less energy than a variable-speed mode; nevertheless, it offers an alternative which captures more energy than single-speed operation. In this paper, dual-speed operation of a wind turbine is investigated. Annual energy production is compared between single-speed and dual-speed operation. One type of control algorithm for dual-speed operation is proposed. Some results from a dynamic simulation will be presented to show how the control algorithm works as the wind turbine is exposed to varying wind speeds.

Muljadi, E.; Butterfield, C.P. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States); Handman, D. [Flowind Corp., San Rafael, CA (United States)] [Flowind Corp., San Rafael, CA (United States)

1996-10-01T23:59:59.000Z

150

Mechanical properties and microstructures of dual phase steels containing silicon, aluminum and molybdenum  

E-Print Network [OSTI]

AND MICROSTRUCTURES OF DUAL PHASE STEELS CONTAINING SILICON,and Microstructures of Dual Phase Steels Containing Silicon,microstructures of selected dual-phase steels in which the

Neill, Thomas John O'

2011-01-01T23:59:59.000Z

151

EFFECTS OF MORPHOLOGY ON THE MECHANICAL BEHAVIOR OF DUAL PHASE Fe/Si/C STEELS  

E-Print Network [OSTI]

and ductility in dual phase steels. However, it seems thatmechanical behavior of dual phase steels. ACKNOWLEDGEMENTSL INTRODUCTION Dual phase steels whose structures consist of

Kim, N.J.

2012-01-01T23:59:59.000Z

152

Quantifying the Uncertainties of Aerosol Indirect Effects and Impacts on Decadal-Scale Climate Variability in NCAR CAM5 and CESM1  

SciTech Connect (OSTI)

The main goal of this project is to systematically quantify the major uncertainties of aerosol indirect effects due to the treatment of moist turbulent processes that drive aerosol activation, cloud macrophysics and microphysics in response to anthropogenic aerosol perturbations using the CAM5/CESM1. To achieve this goal, the P.I. hired a postdoctoral research scientist (Dr. Anna Fitch) who started her work from the Nov.1st.2012. In order to achieve the project goal, the first task that the Postdoc. and the P.I. did was to quantify the role of subgrid vertical velocity variance on the activation and nucleation of cloud liquid droplets and ice crystals and its impact on the aerosol indirect effect in CAM5. First, we analyzed various LES cases (from dry stable to cloud-topped PBL) to check whether this isotropic turbulence assumption used in CAM5 is really valid. It turned out that this isotropic turbulence assumption is not universally valid. Consequently, from the analysis of LES, we derived an empirical formulation relaxing the isotropic turbulence assumption used for the CAM5 aerosol activation and ice nucleation, and implemented the empirical formulation into CAM5/CESM1, and tested in the single-column and global simulation modes, and examined how it changed aerosol indirect effects in the CAM5/CESM1. These results were reported in the poster section in the 18th Annual CESM workshop held in Breckenridge, CO during Jun.17-20.2013. While we derived an empirical formulation from the analysis of couple of LES from the first task, the general applicability of that empirical formulation was questionable, because it was obtained from the limited number of LES simulations. The second task we did was to derive a more fundamental analytical formulation relating vertical velocity variance to TKE using other information starting from basic physical principles. This was a somewhat challenging subject, but if this could be done in a successful way, it could be directly implemented into the CAM5 as a practical parameterization, and substantially contributes to achieving the project goal. Through an intensive research for about one year, we found appropriate mathematical formulation and tried to implement it into the CAM5 PBL and activation routine as a practical parameterized numerical code. During these processes, however, the Postdoc applied for another position in Sweden, Europe, and accepted a job offer there, and left NCAR in August 2014. In Sweden, Dr. Anna Fitch is still working on this subject in a part time, planning to finalize the research and to write the paper in a near future.

Park, Sungsu

2014-12-12T23:59:59.000Z

153

Dual waveband compact catadioptric imaging spectrometer  

DOE Patents [OSTI]

A catadioptric dual waveband imaging spectrometer that covers the visible through short-wave infrared, and the midwave infrared spectral regions, dispersing the visible through shortwave infrared with a zinc selenide grating and midwave infrared with a sapphire prism. The grating and prism are at the cold stop position, enabling the pupil to be split between them. The spectra for both wavebands are focused onto the relevant sections of a single dual waveband detector. Spatial keystone distortion is controlled to less than one tenth of a pixel over the full wavelength range, facilitating the matching of the spectra in the midwave infrared with the shorter wavelength region.

Chrisp, Michael P.

2012-12-25T23:59:59.000Z

154

Dual Superconductivity in G2 group  

E-Print Network [OSTI]

We investigate the dual superconductivity mechanism in the exceptional group $G_2$. This is a centerless group (no 't Hooft flux vortices are allowed) and we check for the presence of a magnetic monopole condensate in the confined phase by measuring on the lattice a disorder parameter related to the vacuum expectation value of an operator carrying magnetic charge. The behaviour of the disorder parameter is consistent with the dual superconductor picture. A first step of an analysis on the thermodynamical properties of the theory is conducted by mean of this operator.

G. Cossu; M. D'Elia; A. Di Giacomo; B. Lucini; C. Pica

2006-09-28T23:59:59.000Z

155

Economics of dual purpose production alternatives in the Mexican tropics  

E-Print Network [OSTI]

Technological, marketing, and financial alternatives to the dual purpose production system in Central Veracruz, Mexico were analyzed to assess their economic viability. A large dual purpose production operation was characterized in a baseline...

Ochoa-Ochoa, Rene Federico

1997-01-01T23:59:59.000Z

156

Aging and the vulnerability of speech to dual task demands  

E-Print Network [OSTI]

Tracking a digital pursuit rotor task was used to measure dual task costs of language production by young and older adults. Tracking performance by both groups was affected by dual task demands: time on target declined and ...

Kemper, Susan; Schmalzried, RaLynn Cheri; Hoffman, Lesa; Herman, Ruth

2010-12-01T23:59:59.000Z

157

Combustion and Emissions Performance of Dual-Fuel Gasoline and...  

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

Combustion and Emissions Performance of Dual-Fuel Gasoline and Diesel HECC on a Multi-Cylinder Light Duty Diesel Engine Combustion and Emissions Performance of Dual-Fuel Gasoline...

158

A Preconditioner for a Primal-Dual Newton Conjugate Gradients ...  

E-Print Network [OSTI]

Dec 30, 2014 ... A Preconditioner for a Primal-Dual Newton Conjugate Gradients Method for Compressed Sensing Problems.

Kimon Fountoulakis

2014-12-30T23:59:59.000Z

159

Optimization Online - Convergence Analysis of Primal-Dual Based ...  

E-Print Network [OSTI]

Sep 24, 2014 ... Convergence Analysis of Primal-Dual Based Methods for Total Variation Minimization with Finite Element Approximation.

Wenyi Tian

2014-09-24T23:59:59.000Z

160

Common Mathematical Foundations of Expected Utility and Dual ...  

E-Print Network [OSTI]

distributions, and their convex combinations correspond to lotteries. The dual utility theory uses convex combinations of comonotonic real random variables,†...

2012-11-24T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

MSW/MBA DUAL DEGREE PROGRAM 2013 2014  

E-Print Network [OSTI]

1 MSW/MBA DUAL DEGREE PROGRAM 2013 ­ 2014 Purpose The MSW/MBA Dual Degree Program was developed of an Individualized Concentration. Course of Study In broad outline, the course of study for the MSW/MBA dual degree two days per week during the academic year). Note: It is also possible to begin the MSW Program

Huang, Jianyu

162

MSW/MBA DUAL DEGREE PROGRAM 2014 2015  

E-Print Network [OSTI]

1 MSW/MBA DUAL DEGREE PROGRAM 2014 ­ 2015 Purpose The MSW/MBA Dual Degree Program was developed of an Individualized Concentration. Course of Study In broad outline, the course of study for the MSW/MBA dual degree two days per week during the academic year). Note: It is also possible to begin the MSW Program

Huang, Jianyu

163

Coupled dual loop absorption heat pump  

DOE Patents [OSTI]

A coupled dual loop absorption system which utilizes two separate complete loops. Each individual loop operates at three temperatures and two pressures. This low temperature loop absorber and condenser are thermally coupled to the high temperature loop evaporator, and the high temperature loop condenser and absorber are thermally coupled to the low temperature generator.

Sarkisian, Paul H. (Watertown, MA); Reimann, Robert C. (Lafayette, NY); Biermann, Wendell J. (Fayetteville, NY)

1985-01-01T23:59:59.000Z

164

High efficiency battery converter with SiC devices for residential PV Cam Pham, Remus Teodorescu, Tamas Kerekes and Laszlo Mathe  

E-Print Network [OSTI]

High efficiency battery converter with SiC devices for residential PV systems Cam Pham, Remus, where the generated energy price is relatively high. Smart PV systems with internal battery storage launched a financial support program for residential PV systems with battery storage [2]. Furthermore

Teodorescu, Remus

165

McLennan, Eds. (Oxford Univ. Press, New York, 1985), pp. 160-186. 24. J. Schumpeter, The Theory ofEcoomic Development (Harvard Univ. Press, Cam-  

E-Print Network [OSTI]

that high energy prices discouraged investment and has also suggested that the energy crisis shiftedEcoomic Development (Harvard Univ. Press, Cam- bridge, MA, 1934). 25. D. W. Jorgensen [in The Positive Sum Strategy, R improved productivity in manufacturing since 1979, largely as a result of shake-outs induced by Prime

166

Assessing the CAM5 Physics Suite in the WRF-Chem Model: Implementation, Resolution Sensitivity, and a First Evaluation for a Regional Case Study  

SciTech Connect (OSTI)

A suite of physical parameterizations (deep and shallow convection, turbulent boundary layer, aerosols, cloud microphysics, and cloud fraction) from the global climate model Community Atmosphere Model version 5.1 (CAM5) has been implemented in the regional model Weather Research and Forecasting with chemistry (WRF-Chem). A downscaling modeling framework with consistent physics has also been established in which both global and regional simulations use the same emissions and surface fluxes. The WRF-Chem model with the CAM5 physics suite is run at multiple horizontal resolutions over a domain encompassing the northern Pacific Ocean, northeast Asia, and northwest North America for April 2008 when the ARCTAS, ARCPAC, and ISDAC field campaigns took place. These simulations are evaluated against field campaign measurements, satellite retrievals, and ground-based observations, and are compared with simulations that use a set of common WRF-Chem Parameterizations. This manuscript describes the implementation of the CAM5 physics suite in WRF-Chem provides an overview of the modeling framework and an initial evaluation of the simulated meteorology, clouds, and aerosols, and quantifies the resolution dependence of the cloud and aerosol parameterizations. We demonstrate that some of the CAM5 biases, such as high estimates of cloud susceptibility to aerosols and the underestimation of aerosol concentrations in the Arctic, can be reduced simply by increasing horizontal resolution. We also show that the CAM5 physics suite performs similarly to a set of parameterizations commonly used in WRF-Chem, but produces higher ice and liquid water condensate amounts and near-surface black carbon concentration. Further evaluations that use other mesoscale model parameterizations and perform other case studies are needed to infer whether one parameterization consistently produces results more consistent with observations.

Ma, Po-Lun; Rasch, Philip J.; Fast, Jerome D.; Easter, Richard C.; Gustafson, William I.; Liu, Xiaohong; Ghan, Steven J.; Singh, Balwinder

2014-05-06T23:59:59.000Z

167

A photometric survey for Lyalpha-HeII dual emitters: Searching for Population III stars in high-redshift galaxies  

E-Print Network [OSTI]

We present a new photometric search for high-z galaxies hosting Population III (PopIII) stars based on deep intermediate-band imaging observations obtained in the Subaru Deep Field (SDF), by using Suprime-Cam on the Subaru Telescope. By combining our new data with the existing broad-band and narrow-band data, we searched for galaxies which emit strongly both in Ly_alpha and in HeII 1640 (``dual emitters'') that are promising candidates for PopIII-hosting galaxies, at 3.93 2 Msun/yr was found by our photometric search in 4.03 x 10^5 Mpc^3 in the SDF. This result disfavors low feedback models for PopIII star clusters, and implies an upper-limit of the PopIII SFR density of SFRD_PopIII < 5 x 10^-6 Msun/yr/Mpc^3. This new selection method to search for PopIII-hosting galaxies should be useful in future narrow-band surveys to achieve the first observational detection of PopIII-hosting galaxies at high redshifts.

Nagao, Tohru; Maiolino, Roberto; Grady, Celestine; Kashikawa, Nobunari; Ly, Chun; Malkan, Matthew; Motohara, Kentaro; Murayama, Takashi; Schaerer, Daniel; Shioya, Yasuhiro; Taniguchi, Yoshiaki

2008-01-01T23:59:59.000Z

168

The World as a Dual Josephson Junction  

E-Print Network [OSTI]

We examine some of the implications of the field-theoretical mechanism for the localization of gauge fields on hypersurfaces in higher-dimensional bulk space-time. This mechanism exploits the analogy between confinement and dual superconductivity. In the simplest case of a photon localized on a (2+1)-dimensional surface in a (3+1)-dimensional bulk, we argue that the system behaves like a dual Josephson junction. This implies that the effective gauge theory on the surface is not free, but displays weak confinement with a linear potential. We comment on the relevance of our results for the realistic case of a (3+1)-dimensional surface in a space-time with one or more extra dimensions.

N. Tetradis

2000-02-24T23:59:59.000Z

169

Adaptive upscaling with the dual mesh method  

SciTech Connect (OSTI)

The objective of this paper is to demonstrate that upscaling should be calculated during the flow simulation instead of trying to enhance the a priori upscaling methods. Hence, counter-examples are given to motivate our approach, the so-called Dual Mesh Method. The main steps of this numerical algorithm are recalled. Applications illustrate the necessity to consider different average relative permeability values depending on the direction in space. Moreover, these values could be different for the same average saturation. This proves that an a priori upscaling cannot be the answer even in homogeneous cases because of the {open_quotes}dynamical heterogeneity{close_quotes} created by the saturation profile. Other examples show the efficiency of the Dual Mesh Method applied to heterogeneous medium and to an actual field case in South America.

Guerillot, D.; Verdiere, S.

1997-08-01T23:59:59.000Z

170

Design of dual frequency interferometric SAR  

SciTech Connect (OSTI)

Using a spaceborne interferometric SAR, it is possible to produce a high resolution global topographic map with a height accuracy of several meters. However, frequency selection of the interferometric SAR is rather complicated due to interferometric phenomenology and atmospheric effects. In this paper, we propose a dual frequency interferometric SAR to achieve better understanding of interferometric height (especially for penetrable medium) and corresponding calibration and to remove the atmospheric effects. The selected frequencies are L- and Ku- bands. We also present a radar design and show that a light weight and efficient SAR can be designed using new technologies and dual frequency advantages even with two frequency radars in a single spacecraft. {copyright} {ital 1996 American Institute of Physics.}

Kim, Y.; Edelstein, W.; Caro, E. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

1996-03-01T23:59:59.000Z

171

Fabrication of dual porosity electrode structure  

DOE Patents [OSTI]

A substantially entirely fibrous ceramic which may have dual porosity of both micro and macro pores. Total porosity may be 60-75% by volume. A method of spraying a slurry perpendicularly to an ambient stream of air is disclosed along with a method of removing binders without altering the fiber morphology. Adding fine ceramic particulates to the green ceramic fibers enhances the sintering characteristics of the fibers.

Smith, James L. (Lemont, IL); Kucera, Eugenia H. (Downers Grove, IL)

1991-01-01T23:59:59.000Z

172

Exact Gravity Dual of a Gapless Superconductor  

E-Print Network [OSTI]

A model of an exact gravity dual of a gapless superconductor is presented in which the condensate is provided by a charged scalar field coupled to a bulk black hole of hyperbolic horizon in asymptotically AdS spacetime. Below a critical temperature, the black hole acquires its hair through a phase transition while an electromagnetic perturbation of the background Maxwell field determines the conductivity of the boundary theory.

George Koutsoumbas; Eleftherios Papantonopoulos; George Siopsis

2009-06-17T23:59:59.000Z

173

Fabrication of dual porosity electrode structure  

DOE Patents [OSTI]

A substantially entirely fibrous ceramic is described which may have dual porosity of both micro and macro pores. Total porosity may be 60-75% by volume. A method of spraying a slurry perpendicularly to an ambient stream of air is disclosed along with a method of removing binders without altering the fiber morphology. Adding fine ceramic particulates to the green ceramic fibers enhances the sintering characteristics of the fibers. 3 figures.

Smith, J.L.; Kucera, E.H.

1991-02-12T23:59:59.000Z

174

A Sensitivity Study of Radiative Fluxes at the Top of Atmosphere to Cloud-Microphysics and Aerosol Parameters in the Community Atmosphere Model CAM5  

SciTech Connect (OSTI)

In this study, we investigated the sensitivity of net radiative fluxes (FNET) at the top of atmosphere (TOA) to 16 selected uncertain parameters mainly related to the cloud microphysics and aerosol schemes in the Community Atmosphere Model version 5 (CAM5). We adopted a quasi-Monte Carlo (QMC) sampling approach to effectively explore the high dimensional parameter space. The output response variables (e.g., FNET) were simulated using CAM5 for each parameter set, and then evaluated using generalized linear model analysis. In response to the perturbations of these 16 parameters, the CAM5-simulated global annual mean FNET ranges from -9.8 to 3.5 W m-2 compared to the CAM5-simulated FNET of 1.9 W m-2 with the default parameter values. Variance-based sensitivity analysis was conducted to show the relative contributions of individual parameter perturbation to the global FNET variance. The results indicate that the changes in the global mean FNET are dominated by those of cloud forcing (CF) within the parameter ranges being investigated. The size threshold parameter related to auto-conversion of cloud ice to snow is confirmed as one of the most influential parameters for FNET in the CAM5 simulation. The strong heterogeneous geographic distribution of FNET variation shows parameters have a clear localized effect over regions where they are acting. However, some parameters also have non-local impacts on FNET variance. Although external factors, such as perturbations of anthropogenic and natural emissions, largely affect FNET variations at the regional scale, their impact is weaker than that of model internal parameters in terms of simulating global mean FNET in this study. The interactions among the 16 selected parameters contribute a relatively small portion of the total FNET variations over most regions of the globe. This study helps us better understand the CAM5 model behavior associated with parameter uncertainties, which will aid the next step of reducing model uncertainty via calibration of uncertain model parameters with the largest sensitivity.

Zhao, Chun; Liu, Xiaohong; Qian, Yun; Yoon, Jin-Ho; Hou, Zhangshuan; Lin, Guang; McFarlane, Sally A.; Wang, Hailong; Yang, Ben; Ma, Po-Lun; Yan, Huiping; Bao, Jie

2013-11-08T23:59:59.000Z

175

Dual fueling of a Caterpillar 3406 diesel engine  

SciTech Connect (OSTI)

A Caterpillar 3406 turbocharged diesel engine was converted to operate in a dual-fuel mode and was evaluated for performance and emission characteristics for both diesel and natural gas operation. Full load power was achieved with dual fueling without knock. Similar fuel efficiencies were obtained with dual fueling a high loads, but efficiencies were lower for low loads. Bosch smoke numbers were reduced by over 50% with dual fueling for all cases investigated. NO{sub x} emissions were found to be lower at low loads and at high speeds under high load. CO emissions were significantly increased for dual fueling while CO{sub 2} concentrations in the exhaust were reduced for dual fueling.

Bell, S.R.; Midkiff, K.C.; Doughty, G.; Brett, C.E. [Univ. of Alabama, Tuscaloosa, AL (United States)

1996-05-01T23:59:59.000Z

176

Dual Superconductor Mechanism of Confinement on the Lattice  

E-Print Network [OSTI]

We investigate the dual superconductor mechanism of confinement for pure SU(2) lattice gauge theory in the maximally abelian gauge. We focus on the the dual Meissner effect. We find that the transverse distribution of the longitudinal chromoelectric field due to a static quark-antiquark pair satisfies the dual London equation. Moreover we show that the size of the flux tube scales according to asymptotic freedom.

P. Cea; L. Cosmai

1992-10-26T23:59:59.000Z

177

Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with CAM3 Single-Column Model and M-PACE Observations  

SciTech Connect (OSTI)

Most global climate models generally prescribe the partitioning of condensed water into liquid droplets and ice crystals in mixed-phase clouds according to a temperature-dependent function, which affects modeled cloud phase, cloud lifetime and radiative properties. This study evaluates a new mixed-phase cloud microphysics parameterization (for ice nucleation and water vapor deposition) against the Atmospheric Radiation Measurement (ARM) Mixed-phase Arctic Cloud Experiment (M-PACE) observations using the NCAR Community Atmospheric Model Version 3 (CAM3) single column model (SCAM). It is shown that SCAM with the new scheme produces a more realistic simulation of the cloud phase structure and the partitioning of condensed waterinto liquid droplets against observations during the M-PACE than the standard CAM. Sensitivity test indicates that ice number concentration could play an important role in the simulated mixed-phase cloud microphysics, and thereby needs to be realistically represented in global climate models.

Liu, Xiaohong; Xie, Shaocheng; Ghan, Steven J.

2007-12-14T23:59:59.000Z

178

An EP theorem for dual linear complementarity problem  

E-Print Network [OSTI]

Mar 2, 2007 ... An EP theorem for dual linear complementarity problem. Illťs Tibor (illes ***at*** math.elte.hu) Marianna Nagy (nmariann ***at*** cs.elte.hu)

Illťs Tibor

2007-03-02T23:59:59.000Z

179

An EP theorem for dual linear complementarity problems  

E-Print Network [OSTI]

present an existentially polytime (EP) theorem for the dual LCP with arbitrary ... goals are discussed in Section 2, along with the LCP duality theorem and an EP.

2008-01-20T23:59:59.000Z

180

Protection of Li Anodes Using Dual Phase Electrolytes  

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

cells with high energy anode and dual-phase electrolyte systems Partners BASF SE, Germany * Development of Li-S battery materials 3 Relevance. Project Objectives. * Develop a...

Note: This page contains sample records for the topic "dual overhead cam" 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

Geothermal: Sponsored by OSTI -- Final Report: Geothermal Dual...  

Office of Scientific and Technical Information (OSTI)

Final Report: Geothermal Dual Acoustic Tool for Measurement of Rock Stress Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About...

182

DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility  

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

built DARHT, the world's most powerful x-ray machine, to analyze mockups of nuclear weapons. At the Los Alamos National Laboratory (LANL), the Dual-Axis Radiographic...

183

On parallelizing dual decomposition in stochastic integer programming  

E-Print Network [OSTI]

Oct 9, 2012 ... Abstract: For stochastic mixed-integer programs, we revisit the dual decomposition algorithm of Car\\o{}e and Schultz from a computational†...

Miles Lubin

2012-10-09T23:59:59.000Z

184

Improving the Performance of Stochastic Dual Dynamic Programming  

E-Print Network [OSTI]

Jul 13, 2012 ... 3 describes the three different tree-traversal strategies we shall test and ...... ria for stochastic dual dynamic programming: a case study in†...

2012-07-13T23:59:59.000Z

185

Evaluation of A New Mixed-Phase Cloud Microphysics Parameterization with the NCAR Climate Atmospheric Model (CAM3) and ARM Observations Fourth Quarter 2007 ARM Metric Report  

SciTech Connect (OSTI)

Mixed-phase clouds are composed of a mixture of cloud droplets and ice crystals. The cloud microphysics in mixed-phase clouds can significantly impact cloud optical depth, cloud radiative forcing, and cloud coverage. However, the treatment of mixed-phase clouds in most current climate models is crude and the partitioning of condensed water into liquid droplets and ice crystals is prescribed as temperature dependent functions. In our previous 2007 ARM metric reports a new mixed-phase cloud microphysics parameterization (for ice nucleation and water vapor deposition) was documented and implemented in the NCAR Community Atmospheric Model Version 3 (CAM3). The new scheme was tested against the Atmospheric Radiation Measurement (ARM) Mixed-phase Arctic Cloud Experiment (M-PACE) observations using the single column modeling and short-range weather forecast approaches. In this report this new parameterization is further tested with CAM3 in its climate simulations. It is shown that the predicted ice water content from CAM3 with the new parameterization is in better agreement with the ARM measurements at the Southern Great Plain (SGP) site for the mixed-phase clouds.

X Liu; SJ Ghan; S Xie; J Boyle; SA Klein

2007-09-30T23:59:59.000Z

186

Evaluation of Mixed-Phase Cloud Parameterizations in Short-Range Weather Forecasts with CAM3 and AM2 for Mixed-Phase Arctic Cloud Experiment  

SciTech Connect (OSTI)

By making use of the in-situ data collected from the recent Atmospheric Radiation Measurement Mixed-Phase Arctic Cloud Experiment, we have tested the mixed-phase cloud parameterizations used in the two major U.S. climate models, the National Center for Atmospheric Research Community Atmosphere Model version 3 (CAM3) and the Geophysical Fluid Dynamics Laboratory climate model (AM2), under both the single-column modeling framework and the U.S. Department of Energy Climate Change Prediction Program-Atmospheric Radiation Measurement Parameterization Testbed. An improved and more physically based cloud microphysical scheme for CAM3 has been also tested. The single-column modeling tests were summarized in the second quarter 2007 Atmospheric Radiation Measurement metric report. In the current report, we document the performance of these microphysical schemes in short-range weather forecasts using the Climate Chagne Prediction Program Atmospheric Radiation Measurement Parameterizaiton Testbest strategy, in which we initialize CAM3 and AM2 with realistic atmospheric states from numerical weather prediction analyses for the period when Mixed-Phase Arctic Cloud Experiment was conducted.

Xie, S; Boyle, J; Klein, S; Liu, X; Ghan, S

2007-06-01T23:59:59.000Z

187

Dual Meissner effect and non-Abelian dual superconductivity in SU(3) Yang-Mills theory  

E-Print Network [OSTI]

The dual Meissner effect is the promising mechanism for quark confinement. We have proposed a new formulation of SU(N) Yang-Mills (YM) theory on a lattice, which can extract the dominant mode for quark confinement in the gauge independent manner. In the last lattice conference, we have demonstrated by measuring the string tension from the Wilson loop average in the SU(3) YM theory that the restricted non-Abelian variable and the extracted non-Abelian magnetic monopoles play the dominant role in confinement of fundamental quarks (dominance in the string tension), in marked contrast to the Abelian projection. In this talk, we focus on the dual Meissner effect in SU(3) YM theory, which is examined by measuring the distribution of chromo-electric field strength created by a static quark-antiquark pair. We apply the new lattice formulation, and examine whether or not the non-Abelian dual superconductivity claimed by us is indeed a mechanism of quark confinement. We present a preliminary result of the direct evidence for the non-abelian dual Meissner effect, that is to say, restricted U(2)-field part of the flux tube plays the dominant role in the quark-antiquark potential.

Akihiro Shibata; Kei-Ichi Kondo; Toru Shinohara

2012-04-25T23:59:59.000Z

188

Dual stage active magnetic regenerator and method  

DOE Patents [OSTI]

A dual stage active magnetic regenerator refrigerator as well as method using the Joule-Brayton thermodynamic cycle includes a high temperature stage refrigerant comprising DyAl{sub 2} or (Dy{sub 1{minus}x}Er{sub x})Al{sub 2} where x is selected to be greater than 0 and less than about 0.3 in combination with a low temperature stage comprising (Dy{sub 1{minus}x}Er{sub x})Al{sub 2} where x is selected to be greater than about 0.5 and less than 1 to provide significantly improved refrigeration efficiency in the liquefaction of gaseous hydrogen. 17 figs.

Pecharsky, V.K.; Gschneidner, K.A. Jr.

1999-03-30T23:59:59.000Z

189

Gravity dual of spatially modulated phase  

SciTech Connect (OSTI)

We show that the five-dimensional Maxwell theory with the Chern-Simons term is tachyonic in the presence of a constant electric field. When coupled to gravity, a sufficiently large Chern-Simons coupling causes instability of the Reissner-Nordstroem black holes in anti-de Sitter space. The instability happens only at nonvanishing momenta, suggesting a spatially modulated phase in the holographically dual quantum field theory in (3+1) dimensions, with spontaneous current generation in a helical configuration. The three-charge extremal black hole in the type IIB superstring theory on AdS{sub 5}xS{sup 5} barely satisfies the stability condition.

Nakamura, Shin [Department of Physics, Kyoto University, Kyoto 606-8502 (Japan); Ooguri, Hirosi [California Institute of Technology, Pasadena, California 91125 (United States); IPMU, University of Tokyo, Kashiwa 277-8586 (Japan); Park, Chang-Soon [California Institute of Technology, Pasadena, California 91125 (United States)

2010-02-15T23:59:59.000Z

190

dual-function | netl.doe.gov  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 Industrial Carbon Capture and Storageconvert 2 3 DEPARTMENT OFDryNovel Dual

191

A Deep, Wide-Field Study of Holmberg II with Suprime-Cam: Evidence for Ram Pressure Stripping  

E-Print Network [OSTI]

We present a deep, wide-field optical study of the M81 group dwarf galaxy Holmberg II (HoII) based on Subaru/Suprime-Cam imaging. Individual stars are resolved down to I~25.2, i.e. about 1.5 mag below the tip of the red giant branch (RGB). We use resolved star counts in the outskirts of the galaxy to measure the radial surface brightness profile down to \\mu_V~32 mag arcsec^-2, from which we determine a projected exponential scalelength of 0.70'+-0.01' (i.e. 0.69+-0.01 kpc). The composite profile, ranging from the cored centre out to R=7', is best fit by an EFF profile which gives a half-light radius of 1.41'+-0.04' (i.e. 1.39+-0.04 kpc), and an absolute magnitude M_V=-16.3. The low surface-brightness stellar component of HoII is regular and symmetric and has an extent much smaller than the vast HI cloud in which it is embedded. We compare the spatial distribution of the young, intermediate age, and old stellar populations, and find that the old RGB stars are significantly more centrally concentrated than the ...

Bernard, Edouard J; Barker, Michael K; Irwin, Michael J; Jablonka, Pascale; Arimoto, Nobuo

2012-01-01T23:59:59.000Z

192

DESIGN OF DUAL PHASE Fe/Mn/C STEEL FOR LOW TEMPERATURE APPLICATION  

E-Print Network [OSTI]

and Properties of Dual- Phase Steels, R. A. Kot and J. \\4.and Properties of Dual Phase Steels, R. A. Kot and J. W. ~Formable HSLA and Dual- Phase Steels, A. T. Davenport, ed. ,

Kim, Nack-Joon

2013-01-01T23:59:59.000Z

193

CARBON ATOM DISTRIBUTION IN A DUAL PHASE STEEL: AN ATOM PROBE STUDY  

E-Print Network [OSTI]

ATOM DISTRIBUTION IN A DUAL PHASE STEEL: AN ATOM PROBE STUDY~4720 1 U.S.A. IntroductioE. Dual Phase steels are currentlymartensite-austenite dual phase steel, although the results

Barnard, S.J.

2014-01-01T23:59:59.000Z

194

MSW/JD DUAL DEGREE PROGRAM 2014 -2015  

E-Print Network [OSTI]

1 MSW/JD DUAL DEGREE PROGRAM 2014 - 2015 Purpose The MSW/JD Dual degree Program is designed or constituencies. Students admitted to the program may expect to receive both the Master of Social Work (MSW in Appendix 1. 6. The integrity of both the MSW and the JD degrees is maintained in the following manner: a

Huang, Jianyu

195

MSW/JD DUAL DEGREE PROGRAM 2013 -2014  

E-Print Network [OSTI]

1 MSW/JD DUAL DEGREE PROGRAM 2013 - 2014 Purpose The MSW/JD Dual degree Program is designed or constituencies. Students admitted to the program may expect to receive both the Master of Social Work (MSW BCGSSW intervention method is described in Appendix 1. 6. The integrity of both the MSW and the JD

Huang, Jianyu

196

SINGLE AND DUAL LAYER THIN FILM BULGE TESTING  

E-Print Network [OSTI]

film windows that are used in Next Generation Lithography masks and certain MEMS devices. The bulge testing method measures the mechanical properties of a thin film by isolating it in a thin film window of the system. Figure 6 Dual Layer Thin Film Membrane Window For a dual layer membrane the effective total

Huston, Dryver R.

197

Evaluation of liquid lift approach to dual gradient  

E-Print Network [OSTI]

the mudline to the rig floor so as to maintain the bottom hole pressure. Several methods have been developed to achieve the dual gradient drilling principle. For this research project, we paid more attention to the liquid lift, dual gradient drilling (riser...

Okafor, Ugochukwu Nnamdi

2009-05-15T23:59:59.000Z

198

Evaluation of liquid lift approach to dual gradient drilling  

E-Print Network [OSTI]

the mudline to the rig floor so as to maintain the bottom hole pressure. Several methods have been developed to achieve the dual gradient drilling principle. For this research project, we paid more attention to the liquid lift, dual gradient drilling (riser...

Okafor, Ugochukwu Nnamdi

2008-10-10T23:59:59.000Z

199

The SU(2) Confining Vacuum as a Dual Superconductor  

E-Print Network [OSTI]

We investigate the dual superconductivity hypothesis in pure SU(2) lattice gauge theory. We find evidence of the dual Meissner effect both in the maximally Abelian gauge and without gauge fixing. We also obtain a rather good extimation of the string tension using the value of the London penetration length.

Paolo Cea; Leonardo Cosmai

1995-09-08T23:59:59.000Z

200

ON ALTERNATE DUAL FRAMES JIMMY DILLIES AND JULIEN GIOL  

E-Print Network [OSTI]

ON ALTERNATE DUAL FRAMES JIMMY DILLIES AND JULIEN GIOL Abstract. The set of alternate duals convenient to introduce the projection pX : l2 (J) - Im X l2 (J) 1 #12;2 JIMMY DILLIES AND JULIEN GIOL onto

Dillies, Jimmy

Note: This page contains sample records for the topic "dual overhead cam" 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

Dual port temperature sensor tag for passive UHF RFID systems  

E-Print Network [OSTI]

Dual port temperature sensor tag for passive UHF RFID systems J. Virtanen Rauma Research Unit and to simplify the measurement procedure. Design/methodology/approach ­ The sensor tag is based on a dual port sensing concept in which two ports are used to obtain sensor readings. By utilizing two ports instead

Elsherbeni, Atef Z.

202

Dual-Phase Hot-Press Forming Alloy  

E-Print Network [OSTI]

of the fully martensitic alloys; In terms of uniform elongation, the dual­phase steel significantly outperformsDual-Phase Hot-Press Forming Alloy Hongliang Yi and H. K. D. H. Bhadeshia 23 April, 2010Non-propagating cracks in ferrite 840 oC 880 oC #12;Conclusion 6 · Conventional HPF steels: fully martensitic · Novel

Cambridge, University of

203

Metabolic complementarity and genomics of the dual bacterial symbiosis of sharpshooters  

E-Print Network [OSTI]

Metabolic Complementarity and Genomics of the Dual BacterialMetabolic complementarity and genomics of the dual bacterialthe other. ) Comparative genomics. The predicted proteomes

2006-01-01T23:59:59.000Z

204

A&S/Business Dual Major 1 of 10 June 30, 2008 A&S/Business Dual Major  

E-Print Network [OSTI]

A&S/Business Dual Major 1 of 10 June 30, 2008 A&S/Business Dual Major Business Programs degree options for programs in business: · Students enrolled in the College of Business Administration (CBA) earn a Bachelor of Science in Business Administration (BSBA) degree and major in Accounting

Jiang, Huiqiang

205

Aerosol Effects on Cirrus through Ice Nucleation in the Community Atmosphere Model CAM5 with a Statistical Cirrus Scheme  

SciTech Connect (OSTI)

A statistical cirrus cloud scheme that tracks ice saturation ratio in the clear-sky and cloudy portion of a grid box separately has been implemented into NCAR CAM5 to provide a consistent treatment of ice nucleation and cloud formation. Simulated ice supersaturation and ice crystal number concentrations strongly depend on the number concentrations of heterogeneous ice nuclei (IN), subgrid temperature formulas and the number concentration of sulfate particles participating in homogeneous freezing, while simulated ice water content is insensitive to these perturbations. 1% to 10% dust particles serving as heterogeneous IN is 20 found to produce ice supersaturaiton in better agreement with observations. Introducing a subgrid temperature perturbation based on long-term aircraft observations of meso-scale motion produces a better hemispheric contrast in ice supersaturation compared to observations. Heterogeneous IN from dust particles significantly alter the net radiative fluxes at the top of atmosphere (TOA) (-0.24 to -1.59 W m-2) with a significant clear-sky longwave component (0.01 to -0.55 W m-2). Different cirrus treatments significantly perturb the net TOA anthropogenic aerosol forcing from -1.21 W m-2 to -1.54 W m-2, with a standard deviation of 0.10 W m-2. Aerosol effects on cirrus clouds exert an even larger impact on the atmospheric component of the radiative fluxes (two or three times the changes in the TOA radiative fluxes) and therefore on the hydrology cycle through the fast atmosphere response. This points to the urgent need to quantify aerosol effects on cirrus clouds through ice nucleation and how these further affect the hydrological cycle.

Wang, Minghuai; Liu, Xiaohong; Zhang, Kai; Comstock, Jennifer M.

2014-09-01T23:59:59.000Z

206

Dual LED/incandescent security fixture  

DOE Patents [OSTI]

A dual LED and incandescent security lighting system uses a hybrid approach to LED illumination. It combines an ambient LED illuminator with a standard incandescent lamp on a motion control sensor. The LED illuminator will activate with the onset of darkness (daylight control) and typically remain on during the course of the night ("always on"). The LED illumination, typically amber, is sufficient to provide low to moderate level lighting coverage to the wall and ground area adjacent to and under the fixture. The incandescent lamp is integrated with a motion control circuit and sensor. When movement in the field of view is detected (after darkness), the incandescent lamp is switched on, providing an increased level of illumination to the area. Instead of an "always on" LED illuminator, the LEDs may also be switched off when the incandescent lamp is switched on.

Gauna, Kevin Wayne

2005-06-21T23:59:59.000Z

207

Dual liquid and gas chromatograph system  

DOE Patents [OSTI]

A chromatographic system that utilizes one detection system for gas chromatographic and micro-liquid chromatographic determinations. The detection system is a direct-current, atmospheric-pressure, helium plasma emission spectrometer. The detector utilizes a non-transparent plasma source unit which contains the plasma region and two side-arms which receive effluents from the micro-liquid chromatograph and the gas chromatograph. The dual nature of this chromatographic system offers: (1) extreme flexibility in the samples to be examined; (2) extremely low sensitivity; (3) element selectivity; (4) long-term stability; (5) direct correlation of data from the liquid and gas samples; (6) simpler operation than with individual liquid and gas chromatographs, each with different detection systems; and (7) cheaper than a commercial liquid chromatograph and a gas chromatograph.

Gay, Don D. (Aiken, SC)

1985-01-01T23:59:59.000Z

208

Dual-fueling turbocharged diesels with ethanol  

SciTech Connect (OSTI)

Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution. (Refs. 6).

Cruz, J.M.; Rotz, C.A.; Watson, D.H.

1982-09-01T23:59:59.000Z

209

Dual-fueling turbocharged diesels with ethanol  

SciTech Connect (OSTI)

Spray addition and carburetion methods were tested for dual-fueling a turbocharged, 65 kW diesel tractor. Approximately 30 percent of the fuel energy for the tractor was supplied by spraying ethanol into the intake air and about 46 percent by carburetion with little affect on the engine thermal efficiency. Further substitution of diesel fuel with ethanol was limited by knock. As the amount of ethanol fed into the engine was increased, ignition apparently changed from the steady burning process which normally occurs in a diesel engine to a rapid explosion which caused knock. The best fuel for the spray approach was a 50 percent ethanol/water solution and with the carburetor it was an 80 percent ethanol/water solution.

Cruz, J.M.; Rotz, C.A.; Watson, D.H.

1982-09-01T23:59:59.000Z

210

Dual-keel electrodynamic maglev system  

DOE Patents [OSTI]

A propulsion and stabilization system is disclosed with a plurality of superconducting magnetic devices affixed to the dual-keels of a vehicle, where the superconducting magnetic devices produce a magnetic field when energized. The system also includes a plurality of figure-eight shaped null-flux coils affixed to opposing vertical sides of slots in a guideway. The figure-eight shaped null-flux coils are vertically oriented, laterally cross-connected in parallel, longitudinally connected in series, and continue the length of the vertical slots providing levitation and guidance force. An external power source energizes the figure-eight shaped null-flux coils to create a magnetic traveling wave that interacts with the magnetic field produced by the superconducting magnets to impart motion to the vehicle. 6 figs.

He, J.L.; Wang, Z.; Rote, D.M.; Coffey, H.T.; Hull, J.R.; Mulcahy, T.M.; Cal, Y.

1996-12-24T23:59:59.000Z

211

Calculation of Transactinide Homolog Isotope Production Reactions Possible with the Center for Accelerator Mass Spectrometry (CAMS) at Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

The LLNL heavy element group has been investigating the chemical properties of the heaviest elements over the past several years. The properties of the transactinides (elements with Z > 103) are often unknown due to their low production rates and short half-lives, which require lengthy cyclotron irradiations in order to make enough atoms for statistically significant evaluations of their chemistry. In addition, automated chemical methods are often required to perform consistent and rapid chemical separations on the order of minutes for the duration of the experiment, which can last from weeks to months. Separation methods can include extraction chromatography, liquid-liquid extraction, or gas-phase chromatography. Before a lengthy transactinide experiment can be performed at an accelerator, a large amount of preparatory work must be done both to ensure the successful application of the chosen chemical system to the transactinide chemistry problem being addressed, and to evaluate the behavior of the lighter elemental homologs in the same chemical system. Since transactinide chemistry is literally performed on one single atom, its chemical properties cannot be determined from bulk chemical matrices, but instead must be inferred from the behavior of the lighter elements that occur in its chemical group and in those of its neighboring elements. By first studying the lighter group homologs in a particular chemical system, when the same system is applied to the transactinide element under investigation, its decay properties can be directly compared to those of the homologues, thereby allowing an inference of its own chemistry. The Center for Accelerator Mass Spectrometry (CAMS) at Lawrence Livermore National Laboratory (LLNL) includes a 1 MV Tandem accelerator, capable of accelerating light ions such as protons to energies of roughly 15 MeV. By using the CAMS beamline, tracers of transactinide homolog elements can be produced both for development of chemical systems and for evaluation of homolog chemical properties. CAMS also offers an environment for testing these systems 'online' by incorporating automated chemical systems into the beamline so that tracers can be created, transported, and chemically separated all on the shorter timescales required for transactinide experiments. Even though CAMS is limited in the types and energies of ions they can accelerate, there are still a wide variety of reactions that can be performed there with commercially available target materials. The half-lives of these isotopes vary over a range that could be used for both online chemistry (where shorter half-lives are required) and benchtop tracers studies (where longer lived isotopes are preferred). In this document, they present a summary of tracer production reactions that could be performed at CAMS, specifically for online, automated chemical studies. They are from chemical groups four through seven, 13, and 14, which would be appropriate for studies of elements 104-107, 113, and 114. Reactions were selected that had (a) commercially available target material, (b) half-lives long enough for transport from a target chamber to an automated chemistry system, and (c) cross-sections at CAMS available projectile energies that were large enough to produce enough atoms to result in a statistically relevant signal after losses for transport and chemistry were considered. In addition, the resulting product atoms had to decay with an observable gamma-ray using standard Ge gamma-ray detectors. The table includes calculations performed for both metal targets and their corresponding oxides.

Moody, K J; Shaughnessy, D A; Gostic, J M

2011-11-29T23:59:59.000Z

212

HCCI Load Expansion Opportunities Using a Fully Variable HVA Research Engine to Guide Developments of a Production Intent Cam-Based VVA Engine: The Low Load Limit  

SciTech Connect (OSTI)

While the potential emissions and efficiency benefits of HCCI combustion are well known, realizing the potentials on a production intent engine presents numerous challenges. In this study we focus on identifying challenges and opportunities associated with a production intent cam-based variable valve actuation (VVA) system on a multi-cylinder engine in comparison to a fully flexible, naturally aspirated, hydraulic valve actuation (HVA) system on a single-cylinder engine, with both platforms sharing the same GDI fueling system and engine geometry. The multi-cylinder production intent VVA system uses a 2-step cam technology with wide authority cam phasing, allowing adjustments to be made to the negative valve overlap (NVO) duration but not the valve opening durations. On the single cylinder HVA engine, the valve opening duration and lift are variable in addition to the NVO duration. The content of this paper is limited to the low-medium operating load region at 2000rpm. Using different injection strategies, including the NVO pilot injection approach, the single-cylinder engine is operated over a load range from 160-390 kPa net IMEP at 2000 rpm. Changes to valve opening duration on the single-cylinder HVA engine illustrate opportunities for load expansion and efficiency improvement at certain conditions. For instance, the low load limit can be extended on the HVA engine by reducing breathing and operating closer to a stoichiometric air fuel ratio (AFR) by using valve deactivation. The naturally aspirated engine used here without external EGR confirmed that as operating load increases the emissions of NOx increases due to combustion temperature. NOx emissions are found to be one limitation to the maximum load limitation, the other being high pressure rise rate. It is found that the configuration of the production intent cam-based system represents a good compromise between valve lift and duration in the low to medium load region. Changing the extent of charge motion and breathing via valve deactivation prove beneficial at moderating the pressure rise rate and combustion stability and extending the low load limit at 2000rpm on the HVA engine. It also confirms that strategies using a pilot fuel injection are beneficial at low operating loads but that as operating load is increased, the benefits of multiple injection diminish to the point where a single injection offers the best performance.

Weall, Adam J [ORNL; Szybist, James P [ORNL; Edwards, Kevin Dean [ORNL; Foster, Matthew [Delphi; Confer, Keith [Delphi; Moore, Wayne [Delphi

2012-01-01T23:59:59.000Z

213

HCCI Load Expansion Opportunities using a Fully Variable HVA Research Engine to Guide Development of a Production Intent Cam-based VVA Engine: The Low Load Limit  

SciTech Connect (OSTI)

While the potential emissions and efficiency benefits of HCCI combustion are well known, realizing the potentials on a production intent engine presents numerous challenges. In this study we focus on identifying challenges and opportunities associated with a production intent cam-based variable valve actuation (VVA) system on a multi-cylinder engine in comparison to a fully flexible, naturally aspirated, hydraulic valve actuation (HVA) system on a single-cylinder engine, with both platforms sharing the same GDI fueling system and engine geometry. The multi-cylinder production intent VVA system uses a 2-step cam technology with wide authority cam phasing, allowing adjustments to be made to the negative valve overlap (NVO) duration but not the valve opening durations. On the single cylinder HVA engine, the valve opening duration and lift are variable in addition to the NVO duration. The content of this paper is limited to the low-medium operating load region at 2000rpm. Using different injection strategies, including the NVO pilot injection approach, the single-cylinder engine is operated over a load range from 160-390 kPa net IMEP at 2000 rpm. Changes to valve opening duration on the single-cylinder HVA engine illustrate opportunities for load expansion and efficiency improvement at certain conditions. For instance, the low load limit can be extended on the HVA engine by reducing breathing and operating closer to a stoichiometric air fuel ratio (AFR) by using valve deactivation. The naturally aspirated engine used here without external EGR confirmed that as operating load increases the emissions of NOx increases due to combustion temperature. NOx emissions are found to be one limitation to the maximum load limitation, the other being high pressure rise rate. It is found that the configuration of the production intent cam-based system represents a good compromise between valve lift and duration in the low to medium load region. Changing the extent of charge motion and breathing via valve deactivation prove beneficial at moderating the pressure rise rate and combustion stability and extending the low load limit at 2000rpm on the HVA engine. It also confirms that strategies using a pilot fuel injection are beneficial at low operating loads but that as operating load is increased, the benefits of multiple injection diminish to the point where a single injection offers the best performance.

Weall, Adam J [ORNL] [ORNL; Szybist, James P [ORNL] [ORNL; Edwards, Kevin Dean [ORNL] [ORNL; Foster, Matthew [Delphi] [Delphi; Confer, Keith [Delphi] [Delphi; Moore, Wayne [Delphi] [Delphi

2012-01-01T23:59:59.000Z

214

Potential use of hollow spheres in dual gradient drilling  

E-Print Network [OSTI]

The increasing number of significant deepwater discoveries has pushed the operator and service oil companies to focus their efforts on developing new technologies to drill in deeper water. Dual gradient drilling (DGD) will allow reaching deeper...

Vera Vera, Liliana

2002-01-01T23:59:59.000Z

215

Optimization of a dual acting, magnetically driven, linear actuator  

E-Print Network [OSTI]

In this study the geometry of a dual acting, magnetically driven, linear motion actuator will be optimized. This will be accomplished by modeling the system through a set of differential equations to be solved in Matlab. An ANSYS finite element...

Willerton, Justin Ryan

2012-06-07T23:59:59.000Z

216

York Electric Cooperative- Dual Fuel Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

York Electric Cooperative, Inc. (YEC) offers a $400 rebate to members who install a dual fuel heat pump in homes or businesses. The rebates are for primary residence and/or commercial and...

217

antigens confer dual: Topics by E-print Network  

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

to the variation of the process (temperature of austeno-ferritic heat. The dual-phase is a steel composed of ferrite and martensite phases. Each phase can be considered...

218

Ring Involutions and Self-Dual Codes Jay A. Wood  

E-Print Network [OSTI]

Ring Involutions and Self-Dual Codes Jay A. Wood Department of Mathematics Western Michigan University jay.wood@wmich.edu AMS meeting, Lexington, Kentucky March 27, 2010 #12;Acknowledgments Much

Wood, Jay

219

Stabilizing the dual inverted pendulum : a practical approach  

E-Print Network [OSTI]

A dual inverted pendulum system, consisting of two individual pendulums of different lengths on a single cart, was fully designed and implemented as a demonstration of classical control theory. This document contains an ...

Barton, Taylor Wallis

2008-01-01T23:59:59.000Z

220

Dual Superconductivity and Chiral Symmetry in Full QCD  

E-Print Network [OSTI]

A disorder parameter detecting dual superconductivity of the vacuum is measured across the chiral phase transition in full QCD with two flavours of dynamical staggered fermions. The observed behaviour is similar to the quenched case.

J. M. Carmona; M. D'Elia; L. Del Debbio; A. Di Giacomo; B. Lucini; G. Paffuti

2001-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

EIS-0228: Dual Axis Radiographic Hydrodynamic Test (DARHT) Facility  

Broader source: Energy.gov [DOE]

This EIS evaluates the potential environmental impact of a proposal to construct and operate the†Dual Axis Radiographic Hydrodynamic Test (DARHT) facility at Los Alamos National Laboratory (LANL)...

222

A Gravity Dual of Metastable Dynamical Supersymmetry Breaking  

SciTech Connect (OSTI)

Metastable, supersymmetry-breaking configurations can be created in flux geometries by placing antibranes in warped throats. Via gauge/gravity duality, such configurations should have an interpretation as supersymmetry-breaking states in the dual field theory. In this paper, we perturbatively determine the asymptotic supergravity solutions corresponding to D3-brane probes placed at the tip of the cascading warped deformed conifold geometry, which is dual to an SU(N+M) x SU(N) gauge theory. The backreaction of the antibranes has the effect of introducing imaginary anti-self-dual flux, squashing the compact part of the space and forcing the dilaton to run. Using the generalization of holographic renormalization to cascading geometries, we determine the expectation values of operators in the dual field theory in terms of the asymptotic values of the supergravity fields.

DeWolfe, Oliver; /Colorado U.; Kachru, Shamit; Mulligan, Michael; /Stanford U., Phys. Dept. /SLAC

2008-02-04T23:59:59.000Z

223

Recovery of primal solution in dual subgradient schemes  

E-Print Network [OSTI]

In this thesis, we study primal solutions for general optimization problems. In particular, we employ the subgradient method to solve the Lagrangian dual of a convex constrained problem, and use a primal-averaging scheme ...

Ma, Jing, S.M. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

224

Dual Models of Permutation Problems Barbara M. Smith  

E-Print Network [OSTI]

Dual Models of Permutation Problems Barbara M. Smith School of Computing & Mathematics University of Huddersfield Huddersfield HD1 3DH, U.K. b.m.smith@hud.ac.uk Abstract. A constraint satisfaction problem

Smith, Barbara M.

225

CONVERGENCE RATE ANALYSIS OF PRIMAL-DUAL SPLITTING ...  

E-Print Network [OSTI]

Abstract. Primal-dual splitting schemes are a class of powerful algorithms ... this paper, we are mainly concerned with the line of work that began in [38, 14, 23].

2014-08-19T23:59:59.000Z

226

Multiplexing video streams using dual-frame video coding  

E-Print Network [OSTI]

novel idea for multiplexing video streams was to combine theLTR frames in dual-frame video coding with EqualSlope. T.Luthra, ďOverview of the H.264/AVC video coding standard,Ē

Tiwari, M; Groves, T; Cosman, P C

2008-01-01T23:59:59.000Z

227

apparent dual function: Topics by E-print Network  

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

Summary: Up till now primal-dual IPMs all use the Newton direction as the search ... in terms of the kernel function and its first and second derivative. .... outer iteration by...

228

The Philosophy and Feasibility of Dual Readout Calorimetry  

SciTech Connect (OSTI)

I will discuss the general physical ideas behind dual-readout calorimetry, their implementation in DREAM (Dual REAdout Module) with exact separation of scintillation and Cerenkov light, implementation with mixed light in DREAM fibers, anticipated implementation in PbWO4 crystals with applications to the 4th Concept detector and to CMS, use in high energy gamma-ray and cosmic ray astrophysics with Cerenkov and N2 fluorescent light, and implementation in the 4th Concept detector for muon identification.

Hauptman, John [Physics, Iowa State University, Ames IA 50011 (United States)

2006-10-27T23:59:59.000Z

229

Fuel cell having dual electrode anode or cathode  

DOE Patents [OSTI]

A fuel cell that is characterized by including a dual electrode anode that is operable to simultaneously electro-oxidize a gaseous fuel and a liquid fuel. In alternative embodiments, a fuel cell having a single electrode anode is provided with a dual electrode cathode that is operable to simultaneously reduce a gaseous oxidant and a liquid oxidant to electro-oxidize a fuel supplied to the cell.

Findl, E.

1984-04-10T23:59:59.000Z

230

The holographic dual of an EPR pair has a wormhole  

E-Print Network [OSTI]

We construct the holographic dual of two colored quasiparticles in maximally supersymmetric Yang-Mills theory entangled in a color singlet EPR pair. In the holographic dual the entanglement is encoded in a geometry of a non-traversable wormhole on the worldsheet of the flux tube connecting the pair. This gives a simple example supporting the recent claim by Maldacena and Susskind that EPR pairs and non-traversable wormholes are equivalent descriptions of the same physics.

Jensen, Kristan

2013-01-01T23:59:59.000Z

231

Fuel cell having dual electrode anode or cathode  

DOE Patents [OSTI]

A fuel cell that is characterized by including a dual electrode anode that is operable to simultaneously electro-oxidize a gaseous fuel and a liquid fuel. In alternative embodiments, a fuel cell having a single electrode anode is provided with a dual electrode cathode that is operable to simultaneously reduce a gaseous oxidant and a liquid oxidant to electro-oxidize a fuel supplied to the cell.

Findl, Eugene (Coram, NY)

1985-01-01T23:59:59.000Z

232

CAM Seminar, Spring 2009  

E-Print Network [OSTI]

Feb 6, 2009 ... Eigenvalue Problems and the LTSA Algorithm for Nonlinear Dimensionality Reduction, Jianlin Xia. 04/16/09 (Joint with PDE seminar, 3:30pm†...

233

CAM Seminar, Spring 2006  

E-Print Network [OSTI]

Chirality and Molecular Order in Polymers, Liquid Crystals and Lipid Microstructures. 2/23/06 (3:30pm at REC 308), Scott MacLachlan. University of Minnesota

234

CAM Seminar, Spring 2009  

E-Print Network [OSTI]

High-Order Energy Stable WENO Schemes, Dongbin Xiu ... Implementation and Efficiency of Discontinuous Galerkin Spectral Element Methods for Hyperbolic†...

235

CAM Seminar, Fall 2003  

E-Print Network [OSTI]

Finite Size Scaling for Quantum Critical Phenomena. 10/17/03, Ilya Pollak Electrical and Computer Engineering, Purdue University, Spatial Random Trees and†...

236

The CAMS Accelerator Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System Burst BufferFluoriteSediments andThe TheThe

237

DEIS_Cam_Cover  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana. DOCUMENTS AVAILABLEReport 2009Site |Documents D.O.E.LOANAFPs0314-4002

238

Meet the CAMS Staff  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region serviceMissionreal-timeMaRIEMcNary-Dam-hits-the-rewind

239

Dual Origin of Pairing in Nuclei  

E-Print Network [OSTI]

An essentially "complete" description of the low-energy nuclear structure of the superfluid nucleus $^{120}$Sn and of its odd-$A$ neighbors is provided by the observations carried out with the help of Coulomb excitation and of one-- and of two-- particle transfer reactions, specific probes of vibrations, quasiparticle and pairing degrees of freedom respectively, and of their mutual couplings. These experimental findings are used to stringently test the predictions of a similarly "complete" description of $^{119,120,121}$Sn carried out in terms of elementary modes of excitation which, through their interweaving, melt together into effective fields, each displaying properties reflecting that of all others, there individuality resulting from the actual relative importance of each one. Its implementation is done by solving the Nambu-Gor'kov equations including, for the first time, all medium polarization effects resulting from the interweaving of quasiparticles, spin and surface vibrations, taking into account, within the framework of nuclear field theory (NFT), the variety of processes leading to self-energy, vertex and Pauli principle corrections, and to the induced pairing interaction. Theory provides an overall quantitative account of the experimental findings. From these results one can, not only obtain strong circumstantial evidence for the inevitability for the dual origin of pairing in nuclei but also, extract information which can be used at profit to quantitatively disentangle the contributions to pairing correlations in general and to the pairing gap in particular, arising from the bare and from the induced pairing interactions.

A. Idini; G. Potel; F. Barranco; E. Vigezzi; R. A. Broglia

2014-04-29T23:59:59.000Z

240

Dual excitation acoustic paramagnetic logging tool  

DOE Patents [OSTI]

New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be performed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described. 6 figs.

Vail, W.B. III.

1989-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

Dual mode stereotactic localization method and application  

DOE Patents [OSTI]

The invention described herein combines the structural digital X-ray image provided by conventional stereotactic core biopsy instruments with the additional functional metabolic gamma imaging obtained with a dedicated compact gamma imaging mini-camera. Before the procedure, the patient is injected with an appropriate radiopharmaceutical. The radiopharmaceutical uptake distribution within the breast under compression in a conventional examination table expressed by the intensity of gamma emissions is obtained for comparison (co-registration) with the digital mammography (X-ray) image. This dual modality mode of operation greatly increases the functionality of existing stereotactic biopsy devices by yielding a much smaller number of false positives than would be produced using X-ray images alone. The ability to obtain both the X-ray mammographic image and the nuclear-based medicine gamma image using a single device is made possible largely through the use of a novel, small and movable gamma imaging camera that permits its incorporation into the same table or system as that currently utilized to obtain X-ray based mammographic images for localization of lesions.

Keppel, Cynthia E. (Norfolk, VA); Barbosa, Fernando Jorge (Newport News, VA); Majewski, Stanislaw (Grafton, VA)

2002-01-01T23:59:59.000Z

242

Dynamic simulation of dual-speed wind turbine generation  

SciTech Connect (OSTI)

Induction generators have been used since the early development of utility-scale wind turbine generation. An induction generator is the generator of choice because of its ruggedness, and low cost. With an induction generator, the operating speed of the wind turbine is limited to a narrow range (almost constant speed). Dual- speed operation can be accomplished by using an induction generator with two different sets of winding configurations or by using two induction generators with two different rated speeds. With single- speed operation, the wind turbine operates at different power coefficients (Cp) as the wind speed varies. The operation at maximum Cp can occur only at a single wind speed. However, if the wind speed varies across a wider range, the operating Cp will vary significantly. Dual-speed operation has the advantage of enabling the wind turbine to operate at near maximum Cp over a wider range of wind-speeds. Thus, annual energy production can be increased. The dual-speed mode may generate less energy than a variable-speed mode; nevertheless, it offers an alternative to capture more energy than single-speed operation. In this paper, dual-speed operation of a wind turbine will be investigated. One type of control algorithm for dual- speed operation is proposed. Results from a dynamic simulation will be presented to show how the control algorithm works and how power, current and torque of the system vary as the wind turbine is exposed to varying wind speeds.

Muljadi, E.; Butterfield, C.P.

1996-10-01T23:59:59.000Z

243

The Chern-Simons term in a dual Josephson junction  

E-Print Network [OSTI]

A dual Josephson junction corresponding to a (2+1)-dimensional non-superconducting layer sandwiched between two (3+1)-dimensional dual superconducting regions constitutes a model of localization of a U(1) gauge field within the layer. Monopole tunneling currents flow from one dual superconducting region to another due to a phase difference between the wave functions of the monopole condensate below and above the non-superconducting layer when there is an electromagnetic field within the layer. These magnetic currents appear within the (2+1)-dimensional layer as a gas of magnetic instanton events and a weak electric charge confinement is expected to take place at very long distances within the layer. In the present work, we consider what happens when one introduces fermions in this physical scenario. Due to the dual Meissner effect featured in the dual superconducting bulk, it is argued that unconfined fermions would be localized within the (2+1)-dimensional layer, where their quantum fluctuations radiatively induce a Chern-Simons term, which is known to destroy the electric charge confinement and to promote the confinement of the magnetic instantons.

L. S. Grigorio; M. S. Guimaraes; R. Rougemont; C. Wotzasek; C. A. D. Zarro

2013-08-27T23:59:59.000Z

244

The Chern-Simons term in a dual Josephson junction  

E-Print Network [OSTI]

A dual Josephson junction corresponding to a (2+1)-dimensional non-superconducting layer sandwiched between two (3+1)-dimensional dual superconducting regions constitutes a model of localization of a U(1) gauge field within the layer. Monopole tunneling currents flow from one dual superconducting region to another due to a phase difference between the wave functions of the monopole condensate below and above the non-superconducting layer. These magnetic currents appear within the (2+1)-dimensional layer as a gas of magnetic instanton events and a weak electric charge confinement is expected to take place at very long distances within the layer. In the present work, we consider what happens when one introduces fermions in this physical scenario. Due to the dual Meissner effect featured in the dual superconducting bulk, it is argued that unconfined fermions would be localized within the (2+1)-dimensional layer, where their quantum fluctuations radiatively induce a Chern-Simons term, which is known to destroy th...

Grigorio, L S; Rougemont, R; Wotzasek, C; Zarro, C A D

2013-01-01T23:59:59.000Z

245

EFFECT OF VANADIUM ON STRUCTURE-PROPERTY RELATIONS OF DUAL PHASE Fe/Mn/Si/0.lC STEELS  

E-Print Network [OSTI]

Formable HSLA and Dual Phase Steels, Proceedings of AIME,and Properties of Dual Phase Steels, Proceedings of Aifv1E,in intercritically annealed dual phase steels. Many of the

Nakagawa, Alvin

2014-01-01T23:59:59.000Z

246

Dual-Fuel Truck Fleet: Start-Up Experience  

SciTech Connect (OSTI)

Although dual-fuel engine technology has been in development and limited use for several years, it has only recently moved toward full-scale operational capability for heavy-duty truck applications. Unlike a bifuel engine, which has two separate fuel systems that are used one at a time, a dual-fuel engine uses two fuel systems simultaneously. One of California's South Coast Air Quality Management District (SCAQMD) current programs is a demonstration of dual-fuel engine technology in heavy-duty trucks. These trucks are being studied as part of the National Renewable Energy Laboratory's (NREL's) Alternative Fuel Truck Program. This report describes the start-up experience from the program.

NREL

1998-09-30T23:59:59.000Z

247

Dual -1 Hahn polynomials: "classical" polynomials beyond the Leonard duality  

E-Print Network [OSTI]

We introduce the -1 dual Hahn polynomials through an appropriate $q \\to -1$ limit of the dual q-Hahn polynomials. These polynomials are orthogonal on a finite set of discrete points on the real axis, but in contrast to the classical orthogonal polynomials of the Askey scheme, the -1 dual Hahn polynomials do not exhibit the Leonard duality property. Instead, these polynomials satisfy a 4-th order difference eigenvalue equation and thus possess a bispectrality property. The corresponding generalized Leonard pair consists of two matrices $A,B$ each of size $N+1 \\times N+1$. In the eigenbasis where the matrix $A$ is diagonal, the matrix $B$ is 3-diagonal; but in the eigenbasis where the matrix $B$ is diagonal, the matrix $A$ is 5-diagonal.

Tsujimoto, Satoshi; Zhedanov, Alexei

2011-01-01T23:59:59.000Z

248

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

SciTech Connect (OSTI)

The August 2003 blackout of the northeastern U.S. and CANADA caused great economic losses and inconvenience to New York City and other affected areas. The blackout was a warning to the rest of the world that the ability of conventional power systems to meet growing electricity demand is questionable. Failure of large power systems can lead to serious emergencies. Introduction of on-site generation, renewable energy such as solar and wind power and the effective utilization of exhaust heat is needed, to meet the growing energy demands of the residential and commercial sectors. Additional benefit can be achieved by integrating these distributed technologies into distributed energy resource (DER) systems. This work demonstrates a method for choosing and designing economically optimal DER systems. An additional purpose of this research is to establish a database of energy tariffs, DER technology cost and performance characteristics, and building energy consumption for Japan. This research builds on prior DER studies at the Ernest Orlando Lawrence Berkeley National Laboratory (LBNL) and with their associates in the Consortium for Electric Reliability Technology Solutions (CERTS) and operation, including the development of the microgrid concept, and the DER selection optimization program, the Distributed Energy Resources Customer Adoption Model (DER-CAM). DER-CAM is a tool designed to find the optimal combination of installed equipment and an idealized operating schedule to minimize a site's energy bills, given performance and cost data on available DER technologies, utility tariffs, and site electrical and thermal loads over a test period, usually an historic year. Since hourly electric and thermal energy data are rarely available, they are typically developed by building simulation for each of six end use loads used to model the building: electric-only loads, space heating, space cooling, refrigeration, water heating, and natural-gas-only loads. DER-CAM provides a global optimization, albeit idealized, that shows how the necessary useful energy loads can be provided for at minimum cost by selection and operation of on-site generation, heat recovery, cooling, and efficiency improvements. This study examines five prototype commercial buildings and uses DER-CAM to select the economically optimal DER system for each. The five building types are office, hospital, hotel, retail, and sports facility. Each building type was considered for both 5,000 and 10,000 square meter floor sizes. The energy consumption of these building types is based on building energy simulation and published literature. Based on the optimization results, energy conservation and the emissions reduction were also evaluated. Furthermore, a comparison study between Japan and the U.S. has been conducted covering the policy, technology and the utility tariffs effects on DER systems installations. This study begins with an examination of existing DER research. Building energy loads were then generated through simulation (DOE-2) and scaled to match available load data in the literature. Energy tariffs in Japan and the U.S. were then compared: electricity prices did not differ significantly, while commercial gas prices in Japan are much higher than in the U.S. For smaller DER systems, the installation costs in Japan are more than twice those in the U.S., but this difference becomes smaller with larger systems. In Japan, DER systems are eligible for a 1/3 rebate of installation costs, while subsidies in the U.S. vary significantly by region and application. For 10,000 m{sup 2} buildings, significant decreases in fuel consumption, carbon emissions, and energy costs were seen in the economically optimal results. This was most noticeable in the sports facility, followed the hospital and hotel. This research demonstrates that office buildings can benefit from CHP, in contrast to popular opinion. For hospitals and sports facilities, the use of waste heat is particularly effective for water and space heating. For the other building types, waste heat is most effectively use

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-10-15T23:59:59.000Z

249

Geometry of the smooth dual of GL(n).  

E-Print Network [OSTI]

Let A(n) be the smooth dual of the p-adic group G=GL(n). We create on A(n) the structure of a complex algebraic variety. There is a morphism of A(n) onto the Bernstein variety Omega G which is injective on each component of A(n). The tempered dual of G is a deformation retract of A(n). The periodic cyclic homology of the Hecke algebra of G is isomorphic to the periodised de Rham cohomology supported on finitely many components of A(n).

Jacek Brodzki; Roger Plymen

250

Dual design resistor for high voltage conditioning and transmission lines  

DOE Patents [OSTI]

A dual resistor for eliminating the requirement for two different value resistors. The dual resistor includes a conditioning resistor at a high resistance value and a run resistor at a low resistance value. The run resistor can travel inside the conditioning resistor. The run resistor is capable of being advanced by a drive assembly until an electrical path is completed through the run resistor thereby shorting out the conditioning resistor and allowing the lower resistance run resistor to take over as the current carrier.

Siggins, Timothy Lynn (Newport News, VA); Murray, Charles W. (Hayes, VA); Walker, Richard L. (Norfolk, VA)

2007-01-23T23:59:59.000Z

251

An evaluation of subsea pump technologies that can be used to achieve dual gradient drilling  

E-Print Network [OSTI]

Dual Gradient Drilling is an exciting technology which promises to solve the current technical hurdles and economic risks of Deepwater Drilling. Several techniques for Dual Gradient Drilling have been proposed to the industry. One such method...

Oluwadairo, Tolulope

2009-05-15T23:59:59.000Z

252

Variable Speed Drive (VSD) Applications in Dual-Duct Constant Volume Systems  

E-Print Network [OSTI]

Models have been developed for static pressure and potential supply fan energy savings by using variable speed drive (VSD) in dual-duct constant volume systems. Experiments have been performed using a full size dual-duct constant volume system...

Joo, I.; Liu, M.; Conger, K.; Wang, G.

2002-01-01T23:59:59.000Z

253

Solution of symmetry equation and hierarchy of self dual Yang-Mills systems  

E-Print Network [OSTI]

The solution of symmetry equation of Yang-Mills self dual system is found in explicit form of its raising Hamiltonian operator. Thus explicit form of equations of self dual Yang Mills hierarchy is constructed.

A. N. Leznov

2008-02-11T23:59:59.000Z

254

DESIGN OF DUAL PHASE Fe/Mn/C STEEL FOR LOW TEMPERATURE APPLICATION  

E-Print Network [OSTI]

and Properties of Dual- Phase Steels, R. A. Kot and J. \\4.Properties of Dual Phase Steels, R. A. Kot and J. W. ~lorrisand Hardenability in Steels, Symp. ASt~. ~. Garvey, Trans.

Kim, Nack-Joon

2013-01-01T23:59:59.000Z

255

TESTING OF THE DUAL ROTARY FILTER SYSTEM  

SciTech Connect (OSTI)

The Savannah River National Laboratory (SRNL) installed and tested two hydraulically connected SpinTek rotary microfilter (RMF) units to determine the behavior of a multiple filter system. Both units were successfully controlled by a control scheme written in DELTA-V architecture by Savannah River Remediation (SRR) Process Control Engineering personnel. The control system was tuned to provide satisfactory response to changing conditions during the operation of the multi-filter system. Stability was maintained through the startup and shutdown of one of the filter units while the second was still in operation. The installation configuration originally proposed by the Small Colum Ion Exchange (SCIX) project of independent filter and motor mountings may be susceptible to vibration. Significant stiffening of the filter and motor mounts was required to minimize the vibration. Alignment of the motor to the filter was a challenge in this test configuration. The deployment configuration must be easy to manipulate and allow for fine adjustment. An analysis of the vibration signature of the test system identified critical speeds. Whether it corresponds to the resonance frequency of a rotor radial vibration mode that was excited by rotor unbalance is uncertain based upon the measurements. A relative motion series should be completed on the filter with the final shaft configuration to determine if the resonances exist in the final filter design. The instrumentation selected for deployment, including the concentrate discharge control valve and flow meters, performed well. Automation of the valve control integrated well with the control scheme and when used in concert with the other control variables, allowed automated control of the dual RMF system. The one area of concern with the instrumentation was the condition resulting when the filtrate flow meter operated with less than three gpm. This low flow was at the lower range of performance for the flow meter. This should not be an issue in deployment where the desired flow rate will be within the normal operating range of the meter. Testing demonstrated that the use of a flexible line for the filtrate discharge is highly desired at the outlet of the rotary union to transition to the system piping. Isolating the vibration from the rotary union will significantly improve the lifetime of the seals. Methods to monitor and isolate individual filters should be considered during deployment. The ability to diagnose issues and isolate individual filters would allow isolation prior to failure. Thus, filters may be cleaned or repaired instead of requiring complete replacement if the condition were to continue unnoticed. Isolating the filtrate line of each filter during startup will minimize the premature buildup of solids on the filter disks. Several tests have shown that the method of filter startup can improve performance lifetime of the filters. The installation must factor in an air inlet for the draining of a filter that does not involve a reverse flow through the filter disks. The reverse flow may cause deformation of the disks or may damage other components of the filters themselves.

Herman, D.; Fowley, M.; Stefanko, D.

2011-08-29T23:59:59.000Z

256

Efficiencies of Solar Tracker systems with static panel Single- Axis Tracking System and Dual-Axis  

E-Print Network [OSTI]

solar tracking system for single axis as well as for dual axis. In a fixed form their efficiency is low

unknown authors

257

A Dual-Armed Robotic System for Intraoperative Ultrasound Guided Hepatic Ablative Therapy:A  

E-Print Network [OSTI]

A Dual-Armed Robotic System for Intraoperative Ultrasound Guided Hepatic Ablative Therapy, we propose the use of a dual robotic arm system that manages both ultrasound manipulation and needle guidance. We report a prototype of the dual arm system and a comparative performance analysis between

Camesano, Terri

258

Contrast limitations of dual electrochromic systems J. Padilla *, T.F. Otero *  

E-Print Network [OSTI]

Contrast limitations of dual electrochromic systems J. Padilla *, T.F. Otero * Center characterize any combination of a dual electrochromic system as a function of the redox charge of its reserved. Keywords: Conducting polymer; Electrochromism; Maximum contrast; Dual system; PEDOT; ProDOT 1

Otero, Toribio Fern√°ndez

259

An Evaluation of the Impacts of Network Bandwidth and Dual-Core Processors on  

E-Print Network [OSTI]

and scaling on a large-scale dual-core system. We provide results for multiple representative DOE applicationsAn Evaluation of the Impacts of Network Bandwidth and Dual-Core Processors on Scalability Ron hardware. Single-core 2.0 GHz AMD Opteron pro- cessors were replaced with dual-core 2.4 GHz AMD Opterons

Brightwell, Ron

260

Dual formulation of the utility maximization problem : the case of nonsmooth utility  

E-Print Network [OSTI]

, finitely valued on the whole real line, we study the dual formulation of the utility maximization problemDual formulation of the utility maximization problem : the case of nonsmooth utility B. Bouchard the dual formulation of the utility maximization problem in incomplete markets when the utility function

Touzi, Nizar

Note: This page contains sample records for the topic "dual overhead cam" 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

Indexing Moving Objects by Space Filling Curves in the Dual Space  

E-Print Network [OSTI]

The Bdual ­ tree: Indexing Moving Objects by Space Filling Curves in the Dual Space By Man Lung Yiu Objects by Space Filling Curves in the Dual Space Introduction Related work Problem definition: Indexing Moving Objects by Space Filling Curves in the Dual Space Introduction Related work Problem

Kaiserslautern, Universität

262

THERMAL CHARACTERISTICS OF MICROINVERTERS ON DUAL-AXIS MOHAMMAD AKRAM HOSSAIN  

E-Print Network [OSTI]

THERMAL CHARACTERISTICS OF MICROINVERTERS ON DUAL-AXIS TRACKERS by MOHAMMAD AKRAM HOSSAIN Submitted of Microinverters on Dual-axis Trackers Case Western Reserve University Case School of Graduate Studies We hereby to science and the pursuit of progress. #12;Thermal Characteristics of Microinverters on Dual-axis Trackers

Rollins, Andrew M.

263

DualPhase HotPress Forming Alloy H. K. D. H. Bhadeshia a,b  

E-Print Network [OSTI]

steels, before transfer into the forming press. Key words: Hot press­forming, dual phase steel. There are many varieties of such steels, for example those which are TRIP­assisted [1­6] or the dual­phase steels that subsequent quenching leads to a dual­phase steel. A potential advantage of this mixture of allotriomorphic

Cambridge, University of

264

Dual Polarized And Balanced Receivers At Millimeter And Submillimeter  

E-Print Network [OSTI]

is dedicated to my parents. #12;iv Acknowledgments First and foremost, I would like to express my heartiest, soccer, tennis, racket ball, and badminton. Finally, I thank my parents, my brother and sisters of strength and inspiration, and without whom I would have lost my way. #12;vi Dual Polarized and Balanced

Chattopadhyay, Goutam

265

Dual periodicities in the rotational modulation of Saturn narrowband emissions  

E-Print Network [OSTI]

Dual periodicities in the rotational modulation of Saturn narrowband emissions S.Y. Ye,1 D. A emissions is examined, restricting the spacecraft location to either the northern or the southern hemisphere of Saturn. It is found that in both hemispheres, the modulation period of 5 kHz narrowband emissions has two

Gurnett, Donald A.

266

LM13700/LM13700A Dual Operational Transconductance Amplifiers with  

E-Print Network [OSTI]

LM13700/LM13700A Dual Operational Transconductance Amplifiers with Linearizing Diodes and Buffers General Description The LM13700 series consists of two current controlled transconductance amplifiers of the amplifiers. The output buffers of the LM13700 differ from those of the LM13600 in that their input bias

Lanterman, Aaron

267

LM119/LM219/LM319 High Speed Dual Comparator  

E-Print Network [OSTI]

LM119/LM219/LM319 High Speed Dual Comparator General Description The LM119 series are precision higher gain and lower input currents than devices like the LM710. The uncommitted collector of the output stage makes the LM119 compatible with RTL, DTL and TTL as well as capable of driving lamps and relays

Lanterman, Aaron

268

Page 1 of 7 Catamount Software Architecture with Dual Core  

E-Print Network [OSTI]

, Dual Core. 1.0 Background A massively parallel processor (MPP), high performance computing (HPC) system of Energy's National Nuclear Security Administration under contract DE-AC04- 94AL85000. synchronization on node specialization [3]. Sets of nodes in an MPP are designated to perform specific tasks, each running

Brightwell, Ron

269

Dual aperture dipole magnet with second harmonic component  

DOE Patents [OSTI]

An improved dual aperture dipole electromagnet includes a second-harmonic frequency magnetic guide field winding which surrounds first harmonic frequency magnetic guide field windings associated with each aperture. The second harmonic winding and the first harmonic windings cooperate to produce resultant magnetic waveforms in the apertures which have extended acceleration and shortened reset portions of electromagnet operation.

Praeg, W.F.

1983-08-31T23:59:59.000Z

270

SMITH INVARIANTS AND DUAL GRADED GRAPHS ALEXANDER MILLER  

E-Print Network [OSTI]

SMITH INVARIANTS AND DUAL GRADED GRAPHS ALEXANDER MILLER Abstract. The aim of this paper the Smith invariants immediately, as the eigenvalues are completely understood [3, 15]. Furthermore, we. Background 1 1.1. Differential posets 1 1.2. Eigenvalues 3 1.3. Smith invariants 3 2. Conjecture for r

Weinberger, Hans

271

Petrov type I Condition and Dual Fluid Dynamics  

E-Print Network [OSTI]

Recently Lysov and Strominger [arXiv:1104.5502] showed that imposing Petrov type I condition on a $(p+1)$-dimensional timelike hypersurface embedded in a $(p+2)$-dimensional vacuum Einstein gravity reduces the degrees of freedom in the extrinsic curvature of the hypersurface to that of a fluid on the hypersurface, and that the leading-order Einstein constraint equations in terms of the mean curvature of the embedding give the incompressible Navier-Stokes equations of the dual fluid. In this paper we show that the non-relativistic fluid dual to vacuum Einstein gravity does not satisfy the Petrov type I condition at next order, unless additional constraint such as the irrotational condition is added. In addition, we show that this procedure can be inversed to derive the non-relativistic hydrodynamics with higher order corrections through imposing the Petrov type I condition, and that some second order transport coefficients can be extracted, but the dual "Petrov type I fluid" does not match the dual fluid constructed from the geometry of vacuum Einstein gravity in the non-relativistic limit. We discuss the procedure both on the finite cutoff surface via the non-relativistic hydrodynamic expansion and on the highly accelerated surface via the near horizon expansion.

Rong-Gen Cai; Li Li; Qing Yang; Yun-Long Zhang

2014-03-17T23:59:59.000Z

272

Dual aperture dipole magnet with second harmonic component  

DOE Patents [OSTI]

An improved dual aperture dipole electromagnet includes a second-harmonic frequency magnetic guide field winding which surrounds first harmonic frequency magnetic guide field windings associated with each aperture. The second harmonic winding and the first harmonic windings cooperate to produce resultant magnetic waveforms in the apertures which have extended acceleration and shortened reset portions of electromagnet operation.

Praeg, Walter F. (Palos Park, IL)

1985-01-01T23:59:59.000Z

273

Dual-Energy CT Angiography in Peripheral Arterial Occlusive Disease  

SciTech Connect (OSTI)

We sought to study the accuracy of dual-energy computed tomographic angiography (DE-CTA) for the assessment of symptomatic peripheral arterial occlusive disease of the lower extremity by using the dual-energy bone removal technique compared with a commercially available conventional bone removal tool. Twenty patients underwent selective digital subtraction angiography and DE-CTA of the pelvis and lower extremities. CTA data were postprocessed with two different applications: conventional bone removal and dual-energy bone removal. All data were reconstructed and evaluated as 3D maximum-intensity projections. Time requirements for reconstruction were documented. Sensitivity, specificity, accuracy, and concordance of DE-CTA regarding degree of stenosis and vessel wall calcification were calculated. A total of 359 vascular segments were analyzed. Compared with digital subtraction angiography, sensitivity, specificity, and accuracy, respectively, of CTA was 97.2%, 94.1%, and 94.7% by the dual-energy bone removal technique. The conventional bone removal tool delivered a sensitivity of 77.1%, a specificity of 70.7%, and an accuracy of 72.0%. Best results for both postprocessing methods were achieved in the vascular segments of the upper leg. In severely calcified segments, sensitivity, specificity, and accuracy stayed above 90% by the dual-energy bone removal technique, whereas the conventional bone removal technique showed a substantial decrease of sensitivity, specificity, and accuracy. DE-CTA is a feasible and accurate diagnostic method in the assessment of symptomatic peripheral arterial occlusive disease. Results obtained by DE-CTA are superior to the conventional bone removal technique and less dependent on vessel wall calcifications.

Brockmann, Carolin, E-mail: carolin.brockmann@rad.ma.uni-heidelberg.de; Jochum, Susanne; Sadick, Maliha [University of Heidelberg, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim (Germany); Huck, Kurt [University of Heidelberg, I. Medical Clinic, Medical Faculty Mannheim (Germany); Ziegler, Peter [University of Heidelberg, Department of Surgery, Medical Faculty Mannheim (Germany); Fink, Christian; Schoenberg, Stefan O.; Diehl, Steffen J. [University of Heidelberg, Department of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim (Germany)

2009-07-15T23:59:59.000Z

274

Dual fuel development for an LNG marine engine  

SciTech Connect (OSTI)

A dual-fuel conversion for the 3406-B Caterpillar marine diesel engine has been developed. The purpose of this conversion is to use lower priced natural gas as a fuel, thus providing substantial cost savings for large fuel consumers. Details of the conversion system are given. Data is presented showing fuel consumption, conditions leading to engine knock, conditions promoting methane flame propagation, and air-fuel ratios required for efficient combustion. The system resulting from this study will use Liquefied Natural Gas (LNG) to power a dual-fuel conversion of a shrimp boat's main engine and generator set. The cold temperatures of the LNG will also be used as a heat sink to refrigerate the fish-hold area of the boat.

Acker, G.H.

1988-01-01T23:59:59.000Z

275

Plane-parallel waves as duals of the flat background  

E-Print Network [OSTI]

We give a classification of non-Abelian T-duals of the flat metric in D=4 dimensions with respect to the four-dimensional continuous subgroups of the Poincare group. After dualizing the flat background, we identify majority of dual models as conformal sigma models in plane-parallel wave backgrounds, most of them having torsion. We give their form in Brinkmann coordinates. We find, besides the plane-parallel waves, several diagonalizable curved metrics with nontrivial scalar curvature and torsion. Using the non-Abelian T-duality, we find general solution of the classical field equations for all the sigma models in terms of d'Alembert solutions of the wave equation.

Ladislav Hlavaty; Ivo Petr

2014-12-03T23:59:59.000Z

276

Dual superconductivity and vacuum properties in Yang--Mills theories  

E-Print Network [OSTI]

We address, within the dual superconductivity model for color confinement, the question whether the Yang-Mills vacuum behaves as a superconductor of type I or type II. In order to do that we compare, for the theory with gauge group SU(2), the determination of the field penetration depth $\\lambda$ with that of the superconductor correlation length $\\xi$. The latter is obtained by measuring the temporal correlator of a disorder parameter developed by the Pisa group to detect dual superconductivity. The comparison places the vacuum close to the border between type I and type II and marginally on the type II side. We also check our results against the study of directly measurable effects such as the interaction between two parallel flux tubes, obtaining consistent indications for a weak repulsive behaviour. Future strategies to improve our investigation are discussed.

A. D'Alessandro; M. D'Elia; L. Tagliacozzo

2007-05-03T23:59:59.000Z

277

String Gas Shells, their Dual Radiation and Hedgehog Signature Control  

E-Print Network [OSTI]

We search for spherically symmetric, stationary solutions with a string gas shell as a source. The requirement of a uniform newtonian potential, or constancy of the 00 component of the metric, implies the existence of a "dual" radiation, which we argue can be interpreted as representing the virtual quantum fluctuations that stabilize the shell. A string hedgehog can be introduced also into the solution. For zero or small hedgehog strength the string gas shell is of a regular nature, while the dual radiation is of a spacelike nature. For higher hedgehog strengths however the radiation "materializes" and becomes timelike while the string gas shell becomes space like. The significance of these solutions for the quantum theory is discussed.

E. I. Guendelman

2009-03-12T23:59:59.000Z

278

Development and Use of the Dual-Mode Plasma Torch  

SciTech Connect (OSTI)

After several years of development, a commercially available high-temperature treatment system has been developed and installed that treats heterogeneous low-level radioactive waste. High temperature plasma processing, unique torch design and operating features make it feasible to achieve a volume reduced, permanent, high integrity waste form while eliminating the personnel exposure and costs associated with conventional sorting, characterizing and handling. Plasma technology can also be used to treat previous conditioned waste packages that no longer meet the current acceptance criteria for final disposal. Plasma treatment can result, in many cases, in a substantial volume reduction, which lowers the final disposal costs. This paper covers the recently patented dual mode plasma torch design(1), the lessons learned that fostered its development and the advantages it brings to radioactive waste processing. This paper also provides current full scale Plasma Arc Centrifugal Treatment (PACT) project status and how the dual mode torch is being used in the PACT system.

Womack, R.; Shuey, M.

2002-02-26T23:59:59.000Z

279

Advanced regenerator testing in the Raytheon dual-use cryocoolerr  

SciTech Connect (OSTI)

Significant progress has been made on the Raytheon low cost space cryocooler called the Dual-Use Cryocooler (DUC). Most notably, the DUC has been integrated and tested with an advanced regenerator. The advanced regenerator is a drop-in replacement for stainless steel screens and has shown significant thermodynamic performance improvements. This paper will compare the performance of two different regenerators and explain the benefits of the advanced regenerator.

Schaefer, B. R.; Bellis, L.; Ellis, M. J.; Conrad, T. J. [Raytheon Space and Airborne Systems 2000 E. El Segundo Blvd., El Segundo, CA 90245 (United States)

2014-01-29T23:59:59.000Z

280

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

Note: This page contains sample records for the topic "dual overhead cam" 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

Wideband dual-linear polarized microstrip patch antenna  

E-Print Network [OSTI]

: the type and thickness of the antenna substrate, the method for feeding the antenna, size of patch antenna, polarization of antenna, the presence of slots in the patch and the use of fractal antennas. II.1 IMPORTANT BROADBAND DESIGN PARAMETERS Antenna... for an aperture coupled stacked patch antenna???????????????.. 24 10 Geometry of the final aperture coupled stacked patch antenna with bowtie apertures and dual offset microstrip feed lines??????.. 25 11 VSWR comparison for various sized patches, apertures...

Smith, Christopher Brian

2009-05-15T23:59:59.000Z

282

MA/MSW DUAL DEGREE PROGRAM In 1989 the Dual Degree in Social Work (MSW) and Pastoral Ministry (MA) Program was  

E-Print Network [OSTI]

MA/MSW DUAL DEGREE PROGRAM 2013-2014 PURPOSE In 1989 the Dual Degree in Social Work (MSW) or Theology and Ministry (academic year) (MA) and the Master of Social Work (MSW) degrees in approximately 3 Standards Review Committee and the Dean of the GSSW. 4. The integrity of both the MA and the MSW degrees

Huang, Jianyu

283

Integrated process and dual-function catalyst for olefin epoxidation  

DOE Patents [OSTI]

The invention discloses a dual-functional catalyst composition and an integrated process for production of olefin epoxides including propylene oxide by catalytic reaction of hydrogen peroxide from hydrogen and oxygen with olefin feeds such as propylene. The epoxides and hydrogen peroxide are preferably produced simultaneously in situ. The dual-functional catalyst comprises noble metal crystallites with dimensions on the nanometer scale (on the order of <1 nm to 10 nm), specially dispersed on titanium silicalite substrate particles. The dual functional catalyst catalyzes both the direct reaction of hydrogen and oxygen to generate hydrogen peroxide intermediate on the noble metal catalyst surface and the reaction of the hydrogen peroxide intermediate with the propylene feed to generate propylene oxide product. Combining both these functions in a single catalyst provides a very efficient integrated process operable below the flammability limits of hydrogen and highly selective for the production of hydrogen peroxide to produce olefin oxides such as propylene oxide without formation of undesired co-products.

Zhou, Bing (Cranbury, NJ); Rueter, Michael (Plymouth Meeting, PA)

2003-01-01T23:59:59.000Z

284

Comments on holographic star and the dual QGP  

E-Print Network [OSTI]

We study static AdS star in generic dimension. The dependence of the mass limit to the bulk fermion mass is explored. In the bulk conformal limit, the mass limit saturates at a value identical to the mass limit of a radiation star or the AdS space filling with pure radiation. The temperature and entropy of the degenerate AdS star in the bulk conformal limit is zero in contrast to the radiation star. Holographically, the universal mass limit corresponds to the upper limit of the deconfinement temperature in the dual gauge picture. The QGP at this temperature is dual to the large black hole and the heat capacity is positive. When the fermion mass increases, the mass limit falls into the range of the small black holes. We found that even though the small black hole has negative heat capacity, the AdS box allows possibilities that it remains in thermal equilibrium with the radiation as long as the size of the black hole is not smaller than a critical size. Consequently, the dual QGP with negative heat capacity can be produced and remains stable thermodynamically at temperature below a saturation temperature $T_{2}$. The QGP with negative heat capacity produced at higher temperature will still condensate completely into a gas of confined hadron.

Piyabut Burikham; Tossaporn Chullaphan

2014-05-08T23:59:59.000Z

285

Self-Dual Maps and Symmetric Bistochastic Matrices  

E-Print Network [OSTI]

The H-unistochastic matrices are a special class of symmetric bistochastic matrices obtained by taking the square of the absolute value of each entry of a Hermitian unitary matrix. We examine the geometric relationship of the convex hull of the n by n H-unistochastic matrices relative to the larger convex set of n by n symmetric bistochastic matrices. We show that any line segment in the convex set of the n by n symmetric bistochastic matrices which passes through the centroid of this convex set must spend at least two-thirds of its length in the convex hull of the n by n H-unistochastic matrices when n is either three or four and we prove a partial result for higher n. A class of completely positive linear maps called the self-dual doubly stochastic maps is useful for studying this problem. Some results on self-dual doubly stochastic maps are given including a self-dual version of the Laudau-Streater theorem.

Corey O'Meara; Rajesh Pereira

2012-11-13T23:59:59.000Z

286

Precessing planetary magnetospheres in SiO stars ? First detection of quasi-periodic polarization fluctuations in R Leo and V Cam  

E-Print Network [OSTI]

The origin of magnetism around AGB stars is uncertain. If these stars drive a dynamo, it cannot be sufficient to generate a strong global field, otherwise the observed X-ray luminosities would be higher. Other explanations for the circular polarization of SiO masers in the atmospheres are needed. The interaction of the AGB wind with previously ejected matter and with planets bears complex magneto-hydrodynamic phenomena on a short time scale, such that strong magnetic fields can be maintained locally. Here we provide observational evidence for the corresponding magnetic fluctuations. We trace magnetic activity with the circular polarization of the v=1, J=2-1 SiO masers, using a correlation polarimeter. In V Cam and R Leo, we find evidence of pseudo-periodic fluctuations of the circular polarization on a timescale of a few hours, from which we infer magnetic fluctuations of ~1G. The phenomenon is rare and restricted to a narrow range of velocities. It seems to be associated with planetary wake flows suggested by VLBI maps. While scenarios involving magnetic activity in the extended stellar atmosphere have problems to explain all observed features, precessing Jovian magnetospheres predict all of them. For the case of R Leo, we constrain the orbit of the planet (estimated period 5.2 years) and estimate a stellar mass of 0.7 solar masses.

Helmut W. Wiesemeyer; Clemens Thum; Alain Baudry; Fabrice Herpin

2009-02-26T23:59:59.000Z

287

Impact of horizontal resolution on simulation of precipitation extremes in an aqua-planet version of the Community Atmosphere Model (CAM)  

SciTech Connect (OSTI)

One key question regarding current climate models is whether the projection of climate extremes converges to a realistic representation as the spatial and temporal resolutions of the model are increased. Ideally the model extreme statistics should approach a fixed distribution once the resolutions are commensurate with the characteristic length and time scales of the processes governing the formation of the extreme phenomena of interest. In this study, a series of AGCM runs with idealized 'aquaplanet-steady-state' boundary conditions have been performed with the Community Atmosphere Model CAM3 to investigate the effect of horizontal resolution on climate extreme simulations. The use of the aquaplanet framework highlights the roles of model physics and dynamics and removes any apparent convergence in extreme statistics due to better resolution of surface boundary conditions and other external inputs. Assessed at a same large spatial scale, the results show that the horizontal resolution and time step have strong effects on the simulations of precipitation extremes. The horizontal resolution has a much stronger impact on precipitation extremes than on mean precipitation. Updrafts are strongly correlated with extreme precipitation at tropics at all the resolutions, while positive low-tropospheric temperature anomalies are associated with extreme precipitation at mid-latitudes.

Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.; Algieri, C.

2011-03-01T23:59:59.000Z

288

Design and Analysis of a Mach 3 Dual Mode Scramjet Combustor.  

E-Print Network [OSTI]

??Low speed operation of a dual mode scramjet engine is important to the development of a two stage to orbit reusable launch vehicle. This studyÖ (more)

Corbin, Christopher Ryan

2008-01-01T23:59:59.000Z

289

Physical properties of erbium implanted tungsten oxide films deposited by reactive dual magnetron sputtering  

E-Print Network [OSTI]

of erbium implanted tungsten oxide films deposited byDual magnetron sputtering; tungsten oxide films; Er ionoptical waveguides [3,5]. Tungsten oxide (WO 3 ) thin films

Mohamed, Sodky H.; Anders, Andre

2006-01-01T23:59:59.000Z

290

Photo of the Week: The First Energy-Efficient Dual-Paned Windows...  

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

Lab helped develop the first energy-efficient dual-paned windows, now used in buildings and homes worldwide for billions of dollars in energy savings. Current windows...

291

SAMPLE Plan of Study for Dual major in Mathematics Education and ...  

E-Print Network [OSTI]

SAMPLE Plan of Study for Dual major in Mathematics Education and Core Mathematics (MAED & MATH combined). Electives. Hours. Semester 1. Course.

2010-09-02T23:59:59.000Z

292

(ConnectCarolina Vendor No.) 904.2.1f Dual Employment Payment Request  

E-Print Network [OSTI]

Vendor ID: (ConnectCarolina Vendor No.) Print Name 904.2.1f­ Dual Employment Payment Request Please

McLaughlin, Richard M.

293

On the ergodic convergence rates of a first-order primal-dual algorithm  

E-Print Network [OSTI]

Sep 9, 2014 ... On the ergodic convergence rates of a first-order primal-dual algorithm. Antonin Chambolle (antonin.chambolle ***at*** cmap.polytechnique.fr)

Antonin Chambolle

2014-09-09T23:59:59.000Z

294

Some Disadvantages of a Mehrotra-Type Primal-Dual Corrector ...  

E-Print Network [OSTI]

The Primal-Dual Corrector (pdc) algorithm that we propose computes on each ... however, that show that the pdc algorithm may fail to converge to a solution of†...

295

E-Print Network 3.0 - asymmetric nanospray dual Sample Search...  

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

results for: asymmetric nanospray dual Page: << < 1 2 3 4 5 > >> 1 Symmetrical Gas-Phase Dissociation of Noncovalent Protein Complexes via Surface Collisions Summary: -mail:...

296

A new warmstarting strategy for the primal-dual column generation ...  

E-Print Network [OSTI]

Jun 24, 2012 ... Abstract: This paper presents a new warmstarting technique in the context of a primal-dual column generation method applied to solve a†...

Jacek Gondzio

2012-06-24T23:59:59.000Z

297

INTEGRATED VERTICAL AND OVERHEAD DECONTAMINATION SYSTEM  

SciTech Connect (OSTI)

This report summarizes the activities performed during FY98 and describes the planned activities for FY99. Accomplishments for FY98 include identifying and selecting decontamination, the screening of potential characterization technologies, development of minimum performance factors for the decontamination technology, and development and identification of Applicable, Relevant and Appropriate Regulations (ARARs).

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

298

INTEGRATED VERTICAL AND OVERHEAD DECONTAMINATION (IVOD) SYSTEM  

SciTech Connect (OSTI)

The deactivation and decommissioning of 1200 buildings within the U.S. Department of Energy-Office of Environmental Management complex will require the disposition of a large quantity of contaminated concrete and metal surfaces. It has been estimated that 23 million cubic meters of concrete and over 600,000 tons of metal will need disposition. The disposition of such large quantities of material presents difficulties in the area of decontamination and characterization. The final disposition of this large amount of material will take time and money as well as risk to the D&D work force. A single automated system that would decontaminate and characterize surfaces in one step would not only reduce the schedule and decrease cost during D&D operations but would also protect the D&D workers from unnecessary exposures to contaminated surfaces. This report summarizes the activities performed during FY00 and describes the planned activities for FY01. Accomplishments for FY00 include the following: Development and field-testing of characterization system; Completion of Title III design of deployment platform and decontamination unit; In-house testing of deployment platform and decontamination unit; Completion of system integration design; Identification of deployment site; and Completion of test plan document for deployment of IVOD at Rancho Seco nuclear power facility.

M.A. Ebadian, Ph.D.

2001-01-01T23:59:59.000Z

299

Chapter 13 - OVERHEAD AND GANTRY CRANES  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStanding FriedelIron-Sulfur3-1 November 2012 Words in bold and3.0

300

Dual-circuit, multiple-effect refrigeration system and method  

DOE Patents [OSTI]

A dual circuit absorption refrigeration system comprising a high temperature single-effect refrigeration loop and a lower temperature double-effect refrigeration loop separate from one another and provided with a double-condenser coupling therebetween. The high temperature condenser of the single-effect refrigeration loop is double coupled to both of the generators in the double-effect refrigeration loop to improve internal heat recovery and a heat and mass transfer additive such as 2-ethyl-1-hexanol is used in the lower temperature double-effect refrigeration loop to improve the performance of the absorber in the double-effect refrigeration loop.

DeVault, Robert C. (Knoxville, TN)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

Fluid dynamics on ultrastatic spacetimes and dual black holes  

E-Print Network [OSTI]

We show that the classification of shearless and incompressible stationary fluid flows on ultrastatic manifolds is equivalent to classifying the isometries of the spatial sections. For a flow on R x S$^2$ this leaves only one possibility, since on the 2-sphere all Killing fields are conjugate to each other, and it is well-known that the gravity dual of such a (conformal) fluid is the spherical KNAdS$_4$ black hole. On the other hand, in R x H$^2$ the situation is more complicated, since the isometry group of H$^2$ admits elliptic, parabolic and hyperbolic elements. One might thus ask what the gravity duals of the flows corresponding to these three different cases are. Answering this question is one of the scopes of this paper. In particular we identify the black hole dual to a fluid that is purely translating on the hyperbolic plane. Although this lies within the Carter-Plebanski (CP) class, it has never been studied in the literature before, and represents thus in principle a new black hole solution in AdS$_4$. For a rigidly rotating fluid in R x H$^2$ (holographically dual to the hyperbolic KNAdS$_4$ solution), there is a certain radius where the velocity reaches the speed of light, and thus the fluid can cover only the region within this radius. Quite remarkably, it turns out that the boundary of the hyperbolic KNAdS$_4$ black hole is conformal to exactly that part of R x H$^2$ in which the fluid velocity does not exceed the speed of light. We extend these results to establish a precise mapping between possible flows on ultrastatic spacetimes (with constant curvature spatial sections) and the parameter space of the CP solution. Finally, we show that the alternative description of the hyperbolic KNAdS$_4$ black hole in terms of fluid mechanics on R x S$^2$ or on flat space is dynamical and consists of a contracting or expanding vortex.

Dietmar Klemm; Andrea Maiorana

2014-07-09T23:59:59.000Z

302

DUAL PHASE MEMBRANE FOR HIGH TEMPERATURE CO2 SEPARATION  

SciTech Connect (OSTI)

This project is intended to expand upon the previous year's research en route to the development of a sustainable dual phase membrane for CO{sub 2} separation. It was found that the pores within the supports had to be less than 9 {micro}m in order to maintain the stability of the dual phase membrane. Pores larger than 9 {micro}m would be unable to hold the molten carbonate phase in place, rendering the membrane ineffective. Calculations show that 80% of the pore volume of the 0.5 media grade metal support was filled with the molten carbonate. Information obtained from EDS and SEM confirmed that the molten carbonate completely infiltrated the pores on both the contact and non-contact size of the metal support. Permeation tests for CO{sub 2} and N{sub 2} at 450-750 C show very low permeance of those two gases through the dual phase membrane, which was expected due to the lack of ionization of those two gases. Permeance of the CO{sub 2} and O{sub 2} mixture was much higher, indicating that the gases do form an ionic species, CO{sub 3}{sup 2-}, enhancing transport through the membrane. However, at temperatures in excess of 650 C, the permeance of CO{sub 3}{sup 2-} decreased quite rapidly, while predictions showed that permeance should have continued to increase. XRD data obtained form the surface of the membrane indicated the formation of lithium iron oxides on the support. This layer has a very low conductivity, which drastically reduces the flow of electrons to the CO{sub 2}/O{sub 2} gas mixture, limiting the formation of the ionic species. These results indicate that the use of stainless steel supports in a high temperature oxidative environment can lead to decreased performance of the membranes. This revelation has created the need for an oxidation resistant support, which can be gained by the use of a ceramic-type membrane. Future research efforts will be directed towards preparation of a new ceramic-carbonate dual phase membrane. The membrane will based on an oxide ceramic support that has an oxidation resistance better than the metal support and high electronic conductivity (1200-1500 S/cm) in the interested temperature range (400-600 C).

Jerry Y.S. Lin; Seungjoon Chung; Matthew Anderson

2005-12-01T23:59:59.000Z

303

Shear spectral sum rule in a nonconformal gravity dual  

SciTech Connect (OSTI)

A sum rule which relates a stress-energy tensor correlator to thermodynamic functions is examined within the context of a simple nonconformal gravity dual. Such a sum rule was previously derived using AdS/CFT for conformal N=4 supersymmetric Yang-Mills theory, but we show that it does not generalize to the nonconformal theory under consideration. We provide a generalized sum rule and numerically verify its validity. A useful by-product of the calculation is the computation of the spectral density in a strongly coupled nonconformal theory. Qualitative features of the spectral densities and implications for lattice measurements of transport coefficients are discussed.

Springer, Todd; Gale, Charles; Jeon, Sangyong [Department of Physics, McGill University, Montreal, Quebec, H3A2T8 (Canada); Lee, Su Houng [Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749 (Korea, Republic of); Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

2010-11-15T23:59:59.000Z

304

Second order hydrodynamics for a special class of gravity duals  

SciTech Connect (OSTI)

The sound mode hydrodynamic dispersion relation is computed up to order q{sup 3} for a class of gravitational duals which includes both Schwarzschild AdS and Dp-brane metrics. The implications for second order transport coefficients are examined within the context of Israel-Stewart theory. These sound mode results are compared with previously known results for the shear mode. This comparison allows one to determine the third order hydrodynamic contributions to the shear mode for the class of metrics considered here.

Springer, T. [School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

2009-04-15T23:59:59.000Z

305

Non-linear parent action and dual gravity  

E-Print Network [OSTI]

We give a reformulation of non-linear Einstein gravity, which contains the dual graviton together with the ordinary metric and a shift gauge field. The metric does not enter through a `kinetic' Einstein-Hilbert term, but via topological couplings, and so the theory does not lead to a doubling of degrees of freedom. The field equations take the form of first-order duality relations. We analyze the gauge symmetries and comment on their meaning with regard to the E11 proposal.

Nicolas Boulanger; Olaf Hohm

2012-04-29T23:59:59.000Z

306

The thermodynamic dual structure of linear-dissipative driven systems  

E-Print Network [OSTI]

The spontaneous emergence of dynamical order, such as persistent currents, is sometimes argued to require principles beyond the entropy maximization of the second law of thermodynamics. I show that, for linear dissipation in the Onsager regime, current formation can be driven by exactly the Jaynesian principle of entropy maximization, suitably formulated for extended systems and nonequilibrium boundary conditions. The Legendre dual structure of equilibrium thermodynamics is also preserved, though it requires the admission of current-valued state variables, and their correct incorporation in the entropy.

Eric Smith

2005-05-02T23:59:59.000Z

307

Dual wavelength laser damage testing for high energy lasers.  

SciTech Connect (OSTI)

As high energy laser systems evolve towards higher energies, fundamental material properties such as the laser-induced damage threshold (LIDT) of the optics limit the overall system performance. The Z-Backlighter Laser Facility at Sandia National Laboratories uses a pair of such kiljoule-class Nd:Phosphate Glass lasers for x-ray radiography of high energy density physics events on the Z-Accelerator. These two systems, the Z-Beamlet system operating at 527nm/ 1ns and the Z-Petawatt system operating at 1054nm/ 0.5ps, can be combined for some experimental applications. In these scenarios, dichroic beam combining optics and subsequent dual wavelength high reflectors will see a high fluence from combined simultaneous laser exposure and may even see lingering effects when used for pump-probe configurations. Only recently have researchers begun to explore such concerns, looking at individual and simultaneous exposures of optics to 1064 and third harmonic 355nm light from Nd:YAG [1]. However, to our knowledge, measurements of simultaneous and delayed dual wavelength damage thresholds on such optics have not been performed for exposure to 1054nm and its second harmonic light, especially when the pulses are of disparate pulse duration. The Z-Backlighter Facility has an instrumented damage tester setup to examine the issues of laser-induced damage thresholds in a variety of such situations [2] . Using this damage tester, we have measured the LIDT of dual wavelength high reflectors at 1054nm/0.5ps and 532nm/7ns, separately and spatially combined, both co-temporal and delayed, with single and multiple exposures. We found that the LIDT of the sample at 1054nm/0.5ps can be significantly lowered, from 1.32J/cm{sup 2} damage fluence with 1054/0.5ps only to 1.05 J/cm{sup 2} with the simultaneous presence of 532nm/7ns laser light at a fluence of 8.1 J/cm{sup 2}. This reduction of LIDT of the sample at 1054nm/0.5ps continues as the fluence of 532nm/7ns laser light simultaneously present increases. The reduction of LIDT does not occur when the 2 pulses are temporally separated. This paper will also present dual wavelength LIDT results of commercial dichroic beam-combining optics simultaneously exposed with laser light at 1054nm/2.5ns and 532nm/7ns.

Atherton, Briggs W.; Rambo, Patrick K.; Schwarz, Jens; Kimmel, Mark W.

2010-05-01T23:59:59.000Z

308

A dual mass flux framework for boundary layer convection  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered¬ČPNGExperience hands-onASTROPHYSICSHeResearchcharm that has beenA dual mass

309

Monitoring system assists in dual-fuel engine knock prevention  

SciTech Connect (OSTI)

ABB Industrietechnik AG recently has introduced an augmented version of its Cyldeyt cylinder pressure monitoring system aimed at spark-ignited and diesel/gas, dual-fuel engines. In addition to recording and evaluating cylinder pressure as a means of assessing engine condition, the new Cyldet version now evaluates the cylinder pressure signals to provide protection against pre-ignition related damage. When pre-ignition reaches critical levels, the Cyldet computer relays alarm signals in two stages to the overriding engine control system of the power plant. On receiving the first-stage alarm signal, the engine control system is programmed to adjust one or more engine settings to eliminate preignition - a typical adjustment is to lower charge-air temperature, for example. If such measures fail to eliminate pre-ignition, in the case of a dual-fuel engine, a second alarm signal triggers a reduction in engine load or, as last resort, changeover of the engine to 100% diesel fuel charge. This paper outlines the advantages and applications of the system. 1 fig., 1 tab.

Not Available

1995-03-01T23:59:59.000Z

310

Dual Phase Membrane for High Temperature CO2 Separation  

SciTech Connect (OSTI)

This project aimed at synthesis of a new inorganic dual-phase carbonate membrane for high temperature CO{sub 2} separation. Metal-carbonate dual-phase membranes were prepared by the direct infiltration method and the synthesis conditions were optimized. Permeation tests for CO{sub 2} and N{sub 2} from 450-750 C showed very low permeances of those two gases through the dual-phase membrane, which was expected due to the lack of ionization of those two particular gases. Permeance of the CO{sub 2} and O{sub 2} mixture was much higher, indicating that the gases do form an ionic species, CO{sub 3}{sup 2-}, enhancing transport through the membrane. However, at temperatures in excess of 650 C, the permeance of CO{sub 3}{sup 2-} decreased rapidly, while predictions showed that permeance should have continued to increase with temperature. XRD data obtained from used membrane indicated that lithium iron oxides formed on the support surface. This lithium iron oxide layer has a very low conductivity, which drastically reduces the flow of electrons to the CO{sub 2}/O{sub 2} gas mixture; thus limiting the formation of the ionic species required for transport through the membrane. These results indicated that the use of stainless steel supports in a high temperature oxidative environment can lead to decreased performance of the membranes. This revelation created the need for an oxidation resistant support, which could be gained by the use of a ceramic-type membrane. Work was extended to synthesize a new inorganic dual-phase carbonate membrane for high temperature CO{sub 2} separation. Helium permeance of the support before and after infiltration of molten carbonate are on the order of 10{sup -6} and 10{sup -10} moles/m{sup 2} {center_dot} Pa {center_dot} s respectively, indicating that the molten carbonate is able to sufficiently infiltrate the membrane. It was found that La{sub 0.6}Sr{sub 0.4}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} (LSCF) was a suitable candidate for the support material. This support material proved to separate CO{sub 2} when combined with O{sub 2} at a flux of 0.194 ml/min {center_dot} cm{sup 2} at 850 C. It was also observed that, because LSCF is a mixed conductor (conductor of both electrons and oxygen ions), the support was able to provide its own oxygen to facilitate separation of CO{sub 2}. Without feeding O{sub 2}, the LSCF dual phase membrane produced a maximum CO{sub 2} flux of 0.246 ml/min {center_dot} cm{sup 2} at 900 C.

Jerry Lin

2007-06-30T23:59:59.000Z

311

Activation of ROS/NF-{kappa}B and Ca{sup 2+}/CaM kinase II are necessary for VCAM-1 induction in IL-1{beta}-treated human tracheal smooth muscle cells  

SciTech Connect (OSTI)

Histone acetylation regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs) plays a critical role in the expression of inflammatory genes, such as vascular cell adhesion molecule-1 (VCAM-1). Oxidative processes have been shown to induce VCAM-1 expression. Here, we investigated the mechanisms underlying IL-1{beta}-induced VCAM-1 expression in human tracheal smooth muscle cells (HTSMCs). Our results showed that IL-1{beta} enhanced HTSMCs-monocyte adhesion through up-regulation of VCAM-1, which was inhibited by pretreatment with selective inhibitors of PKC{alpha} (Goe6976), c-Src (PP1), NADPH oxidase [diphenylene iodonium (DPI) and apocynin (APO)], intracellular calcium chelator (BAPTA/AM), PI-PLC (U73122), CaM (calmidazolium chloride), CaM kinase II (KN62), p300 (garcinol), NF-{kappa}B (Bay11-7082), HDAC (trichostatin A), and ROS scavenger [N-acetyl-L-cysteine (NAC)] or transfection with siRNAs of MyD88, PKC{alpha}, Src, p47{sup phox}, p300, and HDAC4. Moreover, IL-1{beta} stimulated NF-{kappa}B and CaMKII phosphorylation through MyD88-dependent PI-PLC/PKC{alpha}/c-Src/ROS and PI-PLC/Ca{sup 2+}/CaM pathways, respectively. Activation of NF-{kappa}B and CaMKII may eventually lead to the acetylation of histone residues and phosphorylation of histone deacetylases. These findings suggested that IL-1{beta} induced VCAM-1 expression via these multiple signaling pathways in HTSMCs. Blockade of these pathways may reduce monocyte adhesion via VCAM-1 suppression and attenuation of the inflammatory responses in airway diseases.

Luo, S.-F. [Department of Internal Medicine, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan (China); Chang, C.-C.; Lee, I-T. [Department of Physiology and Pharmacology, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan (China); Lee, C.-W. [Department of Nursing, Division of Basic Medical Sciences, Chang Gung Institute of Technology, Chia-Yi, Taiwan (China); Lin, W.-N. [Department of Physiology and Pharmacology, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan (China); Lin, C.-C. [Department of Anesthetics, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan (China); Yang, C.-M. [Department of Physiology and Pharmacology, Chang Gung University, Kwei-San, Tao-Yuan, Taiwan (China)], E-mail: chuenmao@mail.cgu.edu.tw

2009-05-15T23:59:59.000Z

312

Primal-Dual Interior Point Method Applied to the Short Term Hydroelectric Scheduling Including a  

E-Print Network [OSTI]

Primal-Dual Interior Point Method Applied to the Short Term Hydroelectric Scheduling Including that minimizes losses in the transmission and costs in the generation of a hydroelectric power system, formulated such perturbing parameter. Keywords-- Hydroelectric power system, Network flow, Predispatch, Primal-dual interior

Oliveira, Aurélio R. L.

313

*Course can be taken fall or spring ** Yearlong course MA/MSW DUAL DEGREE PROGRAM  

E-Print Network [OSTI]

1 *Course can be taken fall or spring ** Yearlong course MA/MSW DUAL DEGREE PROGRAM 2014-2015 PURPOSE In 1989 the Dual Degree in Social Work (MSW) and Pastoral Ministry (MA) Program was developed) and the Master of Social Work (MSW) degrees in approximately 3 years of full-time study (less if taking STM

Huang, Jianyu

314

Comprehensive computational model of single-and dual-loop optoelectronic  

E-Print Network [OSTI]

Comprehensive computational model of single- and dual-loop optoelectronic oscillators describe a comprehensive computational model for single- loop and dual-loop optoelectronic oscillators amplifiers and oscillators; (230.0250) Optoelectronics; (230.4910) Oscillators. References and links 1. X. S

Horowitz, Moshe

315

Fast, long-scan-range pump-probe measurement based on asynchronous sampling using a dual-  

E-Print Network [OSTI]

Fast, long-scan-range pump-probe measurement based on asynchronous sampling using a dual-scan-range pump-probe scheme is experimentally demonstrated using a dual-wavelength passively mode- locked fiber. 134(25), 10569­10583 (2012). 4. A. Schmidt, M. Chiesa, X. Chen, and G. Chen, "An optical pump

Wu, Shin-Tson

316

REAL-TIME DUAL-MICROPHONE SPEECH ENHANCEMENT USING FIELD PROGRAMMABLE GATE ARRAYS  

E-Print Network [OSTI]

REAL-TIME DUAL-MICROPHONE SPEECH ENHANCEMENT USING FIELD PROGRAMMABLE GATE ARRAYS David Halupka@eecg}.toronto.edu ABSTRACT This paper discusses an implementation of a dual- microphone phase-based speech enhancement or irrelevant conversations, are present has fueled research interest in the areas of speech enhancement

Sheikholeslami, Ali

317

MHD Analysis of Dual Coolant Pb-17Li Blanket for ARIES-CS C. Mistrangelo1  

E-Print Network [OSTI]

MHD Analysis of Dual Coolant Pb-17Li Blanket for ARIES-CS C. Mistrangelo1 , A. R. Raffray2 of California, San Diego, La Jolla, CA 92093-0438, USA, rraffray@ucsd.edu A dual coolant Pb-17Li (DCLL) blanket of magnetohydrodynamic (MHD) flows in the poloidal channels that distribute the liquid metal in the breeder units has

Raffray, A. Renť

318

Surface Extraction from Multi-Material Components for Metrology using Dual Energy CT  

E-Print Network [OSTI]

materials (e.g., carbon-fibre-reinforced plas- tics) induce manufacturers to design new functionSurface Extraction from Multi-Material Components for Metrology using Dual Energy CT Christoph surface models of multi-material components using dual energy com- puted tomography (DECT

319

Fast 3D Brain Segmentation Using Dual-Front Active Contours with Optional User-Interaction  

E-Print Network [OSTI]

Fast 3D Brain Segmentation Using Dual-Front Active Contours with Optional User-Interaction Hua Li1 attributes of 3D brain segmentation algorithms in- clude robustness, accuracy, computational efficiency result. We propose a novel 3D brain cortex segmentation procedure utilizing dual- front active contours

Cohen, Laurent

320

Ordered Arrays of Dual-Diameter Nanopillars for Maximized Optical Absorption  

E-Print Network [OSTI]

Ordered Arrays of Dual-Diameter Nanopillars for Maximized Optical Absorption Zhiyong Fan,,,§ Rehan control to achieve the optimal absorption efficiency. Increasing the Ge materials filling ratio is shown a strong diameter dependency. To enhance the broad band optical absorption efficiency, a novel dual

Javey, Ali

Note: This page contains sample records for the topic "dual overhead cam" 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

PROOF-OF-CONCEPT OF A DUAL-FIRED (SOLAR & NATURAL GAS) GENERATOR  

E-Print Network [OSTI]

End-Use Energy Efficiency · Industrial/Agricultural/Water End-Use Energy Efficiency · Renewable EnergyPROOF-OF-CONCEPT OF A DUAL-FIRED (SOLAR & NATURAL GAS) GENERATOR FOR USE IN A SPACE-COOLING SYSTEM REPORT (FAR) PROOF-OF-CONCEPT OF A DUAL-FIRED (SOLAR & NATURAL GAS) GENERATOR FOR USE IN A SPACE COOLING

322

WILD QUOTIENT SURFACE SINGULARITIES WHOSE DUAL GRAPHS ARE NOT STAR-SHAPED  

E-Print Network [OSTI]

WILD QUOTIENT SURFACE SINGULARITIES WHOSE DUAL GRAPHS ARE NOT STAR-SHAPED HIROYUKI ITO AND STEFAN- zini on wild quotient singularities in dimension two. Using Kato's theory of log structures and log of Heisenberg groups lead to examples of wild quotient singularities where the dual graph contains at least two

Schröer, Stefan

323

Production, Manufacturing and Logistics Managing inventories in a two-echelon dual-channel  

E-Print Network [OSTI]

Production, Manufacturing and Logistics Managing inventories in a two-echelon dual-channel supply We present a two-echelon dual-channel inventory model in which stocks are kept in both a manufacturer the Internet-based direct channel. The demand of retail customers is met with the on-hand inventory from

Chiang, Wei-yu Kevin

324

Development of Dual-Electrode Amperometric Detectors for Liquid Chromatography and Capillary Electrophoresis  

E-Print Network [OSTI]

be operated in either a redox cycling mode or dualĖpotential mode, where either chemical reversibility or voltammetry could be used as a means to confirm migration based peak identification, respectively. The same design was then applied for a dual Au/Hg...

Dorris, Megan

2013-05-31T23:59:59.000Z

325

Inventory Management for Dual Sales Channels with Inventory-Level-Dependent Demand  

E-Print Network [OSTI]

Inventory Management for Dual Sales Channels with Inventory-Level-Dependent Demand Tingting Li Sciences, Tsinghua University, Beijing, China, 100084 Abstract We study the optimal inventory policy of vendor operating dual channels. Demand of each channel depends on inventory levels of both channels. We

Xie, Jinxing

326

(will be inserted by the editor) Dual Orientation and Variant Selection during Diffusional  

E-Print Network [OSTI]

- volves long-range diffusion and which undoubtedly is the dominant phase in the vast majority of steels(will be inserted by the editor) Dual Orientation and Variant Selection during Diffusional it is in contact. However, the theoretical prob- ability for the development of such a dual orientation has

Cambridge, University of

327

Modular Dual Coolant Pb-17Li Blanket Design For ARIES-CS Compact Stellarator Power Plant  

E-Print Network [OSTI]

of the study. The preferred blanket concept is a dual coolant blanket with a He- cooled ferritic steel firstModular Dual Coolant Pb-17Li Blanket Design For ARIES-CS Compact Stellarator Power Plant X.R. Wanga from the engineering effort during the second phase of ARIES-CS study on the conceptual design

Raffray, A. René

328

A dual-porosity reservoir model with a nonlinear coupling term  

SciTech Connect (OSTI)

Since their introduction by Barenblatt et al. (1960), double-porosity models have been widely used for simulating flow in fractured reservoirs, such as geothermal reservoirs. In a dual-porosity system, the matrix blocks provide most of the storage of the reservoir, whereas the fractures provide the global transmissivity. Initially, most work on dual-porosity models emphasized the development of analytical solutions to idealized reservoir problems. Increasingly, the dual-porosity approach is being implemented by numerical reservoir simulators. Accurate numerical simulation of a dual-porosity problem often requires a prohibitively large number of computational cells in order to resolve the transient pressure gradients in the matrix blocks. We discuss a new dual-porosity model that utilizes a nonlinear differential equation to approximate the fracture/matrix interactions, When implemented into a numerical simulator, it eliminates the need to discretize the matrix blocks, and thereby allows more efficient simulation of reservoir problems.

Zimmerman, R.W.; Chen, G.; Hadgu, T.; Bodvarsson, G.S.

1992-09-01T23:59:59.000Z

329

Dual Feedback Controlled High Performance Ar Seeded ELMy H-mode Discharges in JET including Trace Tritium Experiments  

E-Print Network [OSTI]

Dual Feedback Controlled High Performance Ar Seeded ELMy H-mode Discharges in JET including Trace Tritium Experiments

330

THE FIRST SYSTEMATIC SURVEY FOR Ly{alpha} EMITTERS AT z = 7.3 WITH RED-SENSITIVE SUBARU/SUPRIME-CAM  

SciTech Connect (OSTI)

We have performed deep imaging surveys for Ly{alpha} emitters (LAEs) at redshift {approx}7.3 in two blank fields, the Subaru Deep Field (SDF) and the Subaru/XMM-Newton Deep survey Field (SXDF), using the Subaru/Suprime-Cam equipped with new red-sensitive CCDs and a new narrowband filter, NB1006 ({lambda}{sub c} = 10052 Angstrom-Sign , FWHM {Delta}{lambda} = 214 A). We identified four objects as LAE candidates that exhibit luminosity excess in NB1006. By carrying out deep follow-up spectroscopy for three of them using Subaru/FOCAS and Keck/DEIMOS, a definitively asymmetric emission line is detected for one of them, SXDF-NB1006-2. Assuming this line is Ly{alpha}, this object is an LAE at z = 7.215 which has a luminosity of 1.2{sup +1.5}{sub -0.6} Multiplication-Sign 10{sup 43} erg s{sup -1} and a weighted skewness S{sub {omega}} = 4.90 {+-} 0.86. Another object, SDF-NB1006-2, shows variable photometry and is thus probably a quasar (QSO) or an active galactic nucleus. It shows an asymmetric emission line at 10076 A which may be due to either Ly{alpha} at z = 7.288 or [O II] at z = 1.703. The third object, SDF-NB1006-1, is likely a galaxy with temporal luminosity enhancement associated with a supernova explosion, as the brightness of this object varies between the observed epochs. Its spectrum does not show any emission lines. The inferred decrease in the number density of LAEs toward higher redshift is n{sup z={sup {sup 7.3}{sub Ly{alpha}}}}/n{sub Ly{alpha}}{sup z={sup {sup 5.7}}} = 0.05{sup +0.11}{sub -0.05} from z = 5.7 to 7.3 down to L{sup Ly{alpha}} = 1.0 Multiplication-Sign 10{sup 43} erg s{sup -1}. The present result is consistent with the interpretation in previous studies that the neutral hydrogen fraction is rapidly increasing from z = 5.7 to 7.3.

Shibuya, Takatoshi; Kashikawa, Nobunari; Iye, Masanori [Department of Astronomical Science, Graduate University for Advanced Studies, Mitaka, Tokyo 181-8588 (Japan); Ota, Kazuaki [Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502 (Japan); Ouchi, Masami [Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582 (Japan); Furusawa, Hisanori [Optical and Infrared Astronomy Division, National Astronomical Observatory, Mitaka, Tokyo 181-8588 (Japan); Shimasaku, Kazuhiro [Department of Astronomy, Graduate School of Science, University of Tokyo, Tokyo 113-0033 (Japan); Hattori, Takashi, E-mail: takatoshi.shibuya@nao.ac.jp [Subaru Telescope, 650 North A'ohoku Place, Hilo, HI 96720 (United States)

2012-06-20T23:59:59.000Z

331

Dual-energy synchrotron X ray measurements of rapid soil density and water content changes in swelling soils  

E-Print Network [OSTI]

Dual-energy synchrotron X ray measurements of rapid soil density and water content changes content and bulk density. A number of studies have used dual-energy gamma rays to investigate soil in moisture content and soil swelling shortly after infiltration is initiated. In this paper, we use the dual-energy

Walter, M.Todd

332

Dual Phase Membrane for High temperature CO2 Separation  

SciTech Connect (OSTI)

Research in the previous years in this project found that stainless steel supports are oxidized during high temperature, dual phase membrane separation of carbon dioxide (with oxygen). Consequently, a new material has been sought to alleviate the problems with oxidation. Lanthanum cobaltite oxide is a suitable candidate for the support material in the dual phase membrane due to its oxidation resistance and electronic conductivity. Porous lanthanum cobaltite membranes were prepared via the citrate method, using nitrate metal precursors as the source of La, Sr, Co and Fe. The material was prepared and ground into a powder, which was subsequently pressed into disks for sintering at 900 C. Conductivity measurements were evaluated using the four-probe DC method. Support pore size was determined by helium permeation. Conductivity of the lanthanum cobaltite material was found to be at a maximum of 0.1856 S/cm at 550 C. The helium permeance of the lanthanum cobaltite membranes for this research was on the order of 10{sup -6} moles/m{sup 2} {center_dot} Pa {center_dot} s, proving that the membranes are porous after sintering at 900 C. The average pore size based on steady state helium permeance measurements was found to be between 0.37 and 0.57 {micro}m. The lanthanum cobaltite membranes have shown to have desired porosity, pore size and electric conductivity as the support for the dual-phase membranes. Molten carbonate was infiltrated to the pores of lanthanum cobaltite membranes support. After infiltration with molten carbonate, the helium permeance of the membranes decreased by three orders of magnitude to 10{sup -9} moles/m{sup 2} {center_dot} Pa {center_dot} s. This number, however, is one order of magnitude larger than the room temperate permeance of the stainless steel supports after infiltration with molten carbonate. Optimization of the dip coating process with molten carbonate will be evaluated to determine if lower permeance values can be obtained with the lanthanum cobaltite membrane supports.

Jerry Y.S. Lin; Matthew Anderson

2005-12-01T23:59:59.000Z

333

A Brief History of CAMS  

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

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334

CAMS AnalysisApplication.xlsx  

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

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335

A supersymmetric holographic dual of a fractional topological insulator  

E-Print Network [OSTI]

We construct a supersymmetric generalization of the holographic dual of a fractional topological insulator found in \\cite{HoyosBadajoz:2010ac}. This is accomplished by introducing a nontrivial gauge field on the world volume of the probe D7 brane. The BPS equations are derived from the $\\kappa$-symmetry transformation of the probe brane. The BPS equations are shown to reduce to two first oder nonlinear partial differential equations. Solutions of the BPS equations correspond to a probe brane configuration which preserves four of the thirty-two supersymmetries of the $AdS_5\\times S^5$ background. Solutions of the BPS equations which correspond to a holographic fractional topological insulator are obtained numerically.

Martin Ammon; Michael Gutperle

2012-04-10T23:59:59.000Z

336

A dual emission mechanism in Sgr A*/L' ?  

E-Print Network [OSTI]

We have collected in 2004 adaptive optics corrected L' images of the Galactic Center region with NAOS-CONICA at VLT. A strong variability was observed as well as a correlation between the photocenter positions and fluxes of the L'-band counterpart of Sgr A*. It is interpreted as the combined emission of a point-like flaring source at the position of Sgr A*/IR itself and an extended dust structure, 75 mas south west of Sgr A*/IR, which we name Sgr A*-f. We examine the different possible mechanisms to explain this dual Sgr A* L' emission and conclude it is likely a flaring emission associated to energetic events in the close environment of the black hole plus a quiescent emission resulting from the collision of Sgr A*-f by a jet from Sgr A*.

Yann Clťnet; Daniel Rouan; Damien Gratadour; Olivier Marco; Pierre Lťna; Nancy Ageorges; Eric Gendron

2005-07-05T23:59:59.000Z

337

Iterative Self-Dual Reconstruction on Radar Image Recovery  

SciTech Connect (OSTI)

Imaging systems as ultrasound, sonar, laser and synthetic aperture radar (SAR) are subjected to speckle noise during image acquisition. Before analyzing these images, it is often necessary to remove the speckle noise using filters. We combine properties of two mathematical morphology filters with speckle statistics to propose a signal-dependent noise filter to multiplicative noise. We describe a multiscale scheme that preserves sharp edges while it smooths homogeneous areas, by combining local statistics with two mathematical morphology filters: the alternating sequential and the self-dual reconstruction algorithms. The experimental results show that the proposed approach is less sensitive to varying window sizes when applied to simulated and real SAR images in comparison with standard filters.

Martins, Charles; Medeiros, Fatima; Ushizima, Daniela; Bezerra, Francisco; Marques, Regis; Mascarenhas, Nelson

2010-05-21T23:59:59.000Z

338

Dual fuel engine control systems for transportation applications  

SciTech Connect (OSTI)

Microprocessor control systems have been developed for dual fuel diesel engines intended for transportation applications. Control system requirements for transportation engines are more demanding than for stationary engines, as the system must be able to cope with variable speed and load. Detailed fuel maps were determined for both normally aspirated and turbocharged diesel engines based on the criterion that the engine did not operate in the regimes where knock or incomplete combustion occurred. The control system was developed so that the engine would follow the detailed fuel map. The input variables to the control system are engine speed and load. Based on this, the system then controls the amount of natural gas and diesel fuel supplied to the engine. The performance of the system is briefly summarized.

Gettel, L.E.; Perry, G.C.; Boisvert, J.; O'Sullivan, P.J.

1987-10-01T23:59:59.000Z

339

Dual annular rotating "windowed" nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core.

Jacox, Michael G. (Idaho Falls, ID); Drexler, Robert L. (Idaho Falls, ID); Hunt, Robert N. M. (Idaho Falls, ID); Lake, James A. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

340

Investigation of plasma diagnostics using a dual frequency harmonic technique  

SciTech Connect (OSTI)

Plasma diagnostic methods using harmonic currents analysis of electrostatic probes were experimentally investigated to understand the differences in their measurement of the plasma parameters. When dual frequency voltage (?{sub 1},?{sub 2}) was applied to a probe, various harmonic currents (?{sub 1},?2?{sub 1},?{sub 2},?2?{sub 2},?{sub 2}Ī?{sub 1},?{sub 2}Ī2?{sub 1}) were generated due to the non-linearity of the probe sheath. The electron temperature can be obtained from the ratio of the two harmonics of the probe currents. According to the combinations of the two harmonics, the sensitivities in the measurement of the electron temperature differed, and this results in a difference of the electron temperature. From experiments and simulation, it is shown that this difference is caused by the systematic and random noise.

Kim, Dong-Hwan [Department of Nanoscale Semiconductor Engineering, Hanyang University, Seoul (Korea, Republic of); Kim, Young-Do; Cho, Sung-Won; Kim, Yu-Sin; Chung, Chin-Wook, E-mail: joykang@hanyang.ac.kr [Department of Electrical Engineering, Hanyang University, Seoul (Korea, Republic of)

2014-09-07T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

The HERMES dual-radiator ring imaging Cerenkov detector  

E-Print Network [OSTI]

The construction and use of a dual radiator Ring Imaging Cerenkov(RICH) detector is described. This instrument was developed for the HERMES experiment at DESY which emphasizes measurements of semi-inclusive deep-inelastic scattering. It provides particle identification for pions, kaons, and protons in the momentum range from 2 to 15 GeV, which is essential to these studies. The instrument uses two radiators, C4F10, a heavy fluorocarbon gas, and a wall of silica aerogel tiles. The use of aerogel in a RICH detector has only recently become possible with the development of clear, large homogeneous and hydrophobic aerogel. A lightweight mirror was constructed using a newly perfected technique to make resin-coated carbon-fiber surfaces of optical quality. The photon detector consists of 1934 photomultiplier tubes for each detector half, held in a soft steel matrix to provide shielding against the residual field of the main spectrometer magnet.

Akopov, N Z; Bailey, K; Bernreuther, S; Bianchi, N; Capitani, G P; Carter, P; Cisbani, E; De Leo, R; De Sanctis, E; De Schepper, D; Dzhordzhadze, V; Filippone, B W; Frullani, S; Garibaldi, F; Hansen, J O; Hommez, B; Iodice, M; Jackson, H E; Jung, P; Kaiser, R; Kanesaka, J; Kowalczyk, R; Lagamba, L; Maas, A; Muccifora, V; Nappi, E; Negodaeva, K; Nowak, Wolf-Dieter; O'Connor, T; O'Neill, T G; Potterveld, D H; Ryckbosch, D; Sakemi, Y; Sato, F; Schwind, A; Shibata, T A; Suetsugu, K; Thomas, E; Tytgat, M; Urciuoli, G M; Van de Kerckhove, K; Van de Vyver, R; Yoneyama, S; Zohrabyan, H G; Zhang, L F

2002-01-01T23:59:59.000Z

342

Slowly Varying Dilaton Cosmologies and Their Field Theory Duals  

SciTech Connect (OSTI)

We consider a deformation of the AdS{sub 5} x S{sup 5} solution of IIB supergravity obtained by taking the boundary value of the dilaton to be time dependent. The time dependence is taken to be slowly varying on the AdS scale thereby introducing a small parameter {epsilon}. The boundary dilaton has a profile which asymptotes to a constant in the far past and future and attains a minimum value at intermediate times. We construct the sugra solution to first non-trivial order in {epsilon}, and find that it is smooth, horizon free, and asymptotically AdS{sub 5} x S{sup 5} in the far future. When the intermediate values of the dilaton becomes small enough the curvature becomes of order the string scale and the sugra approximation breaks down. The resulting dynamics is analysed in the dual SU(N) gauge theory on S{sup 3} with a time dependent coupling constant which varies slowly. When N{epsilon} << 1, we find that a quantum adiabatic approximation is applicable, and use it to argue that at late times the geometry becomes smooth AdS{sub 5} x S{sup 5} again. When N{epsilon} >> 1, we formulate a classical adiabatic perturbation theory based on coherent states which arises in the large N limit. For large values of the tHooft coupling this reproduces the supergravity results. For small 'tHooft coupling the coherent state calculations become involved and we cannot reach a definite conclusion. We argue that the final state should have a dual description which is mostly smooth AdS5 space with the possible presence of a small black hole.

Awad, Adel; /British U. in Egypt /Ain Shams U., Cairo; Das, Sumit R.; Ghosh, Archisman; Oh, Jae-Hyuk; /Kentucky U.; Trivedi, Sandip P.; /Tata Inst. /Stanford U., ITP /SLAC

2011-06-28T23:59:59.000Z

343

Dual Phase Membrane for High Temperature CO2 Separation  

SciTech Connect (OSTI)

Dual-phase membranes consisting of stainless steel supports infiltrated with molten carbonate have been shown to be selective to CO{sub 2} at high temperatures (400-650 C). However, over time at high temperatures, the formation of iron oxides on the surface of the stainless steel supports render the membranes ineffective. This report details synthesis and characteristics of dual-phase carbonate membrane with an oxidation resistant perovskite type ceramic (lanthanum-strontium-cobaltite-iron; LSCF) support. Porous LSCF supports were prepared from its powder synthesized by the citrate method. Both steady state permeation and mercury porosimetry confirmed that the LSCF membrane sintered at 900 C has pores large enough to absorb molten carbonate, yet small enough to retain the molten carbonate under high pressure conditions. Results of XRD analysis have shown that LSCF and the molten carbonate mixture do not react with each other at temperatures below 700 C. Four-point method conductivity tests indicate that the support material has sufficiently high electronic conductivity for this application. Li-Na-K carbonate was coated to the porous LSCF support by a liquid infiltration method. Helium permeance of the support before and after infiltration of molten carbonate are on the order of 10{sup -6} and 10{sup -10} moles/m{sup 2} {center_dot} Pa {center_dot} s respectively, indicating that the molten carbonate is able to sufficiently infiltrate the membrane. Preliminary high temperature permeation experiments indicate that the membrane does separate CO{sub 2} in the presence of O{sub 2}, with a maximum flux of 0.623 ml/cm{sup 2} {center_dot} min obtained at 850 C.

Jerry Y.S. Lin; Matthew Anderson

2006-09-29T23:59:59.000Z

344

Theoretical study of the dual harmonic system and its application on the CSNS/RCS  

E-Print Network [OSTI]

The dual harmonic system has been widely used in high intensity proton synchrotrons to suppress the space charge effect, as well as reduce the beam loss. To investigate the longitudinal beam dynamics in the dual rf system, the potential well, the sub-buckets in the bunch and the multi-solutions of the phase equation have been studied theoretically. Based on these theoretical studis, the optimization of bunching factor and rf voltage waveform are made for the dual harmonic rf system in the upgrade phase of the CSNS/RCS. In the optimization process, the simulation with space charge effect is done by using a newly developed code C-SCSIM.

Yuan, Yao-Shuo; Xu, Shou-Yan; Yuan, Yue; Wang, Sheng

2015-01-01T23:59:59.000Z

345

Computationally efficient double hybrid density functional theory using dual basis methods  

E-Print Network [OSTI]

We examine the application of the recently developed dual basis methods of Head-Gordon and co-workers to double hybrid density functional computations. Using the B2-PLYP, B2GP-PLYP, DSD-BLYP and DSD-PBEP86 density functionals, we assess the performance of dual basis methods for the calculation of conformational energy changes in C$_4$-C$_7$ alkanes and for the S22 set of noncovalent interaction energies. The dual basis methods, combined with resolution-of-the-identity second-order M{\\o}ller-Plesset theory, are shown to give results in excellent agreement with conventional methods at a much reduced computational cost.

Byrd, Jason N

2015-01-01T23:59:59.000Z

346

Improved proton computed tomography by dual modality image reconstruction  

SciTech Connect (OSTI)

Purpose: Proton computed tomography (CT) is a promising image modality for improving the stopping power estimates and dose calculations for particle therapy. However, the finite range of about 33 cm of water of most commercial proton therapy systems limits the sites that can be scanned from a full 360į rotation. In this paper the authors propose a method to overcome the problem using a dual modality reconstruction (DMR) combining the proton data with a cone-beam x-ray prior. Methods: A Catphan 600 phantom was scanned using a cone beam x-ray CT scanner. A digital replica of the phantom was created in the Monte Carlo code Geant4 and a 360į proton CT scan was simulated, storing the entrance and exit position and momentum vector of every proton. Proton CT images were reconstructed using a varying number of angles from the scan. The proton CT images were reconstructed using a constrained nonlinear conjugate gradient algorithm, minimizing total variation and the x-ray CT prior while remaining consistent with the proton projection data. The proton histories were reconstructed along curved cubic-spline paths. Results: The spatial resolution of the cone beam CT prior was retained for the fully sampled case and the 90į interval case, with the MTF = 0.5 (modulation transfer function) ranging from 5.22 to 5.65?linepairs/cm. In the 45į interval case, the MTF = 0.5 dropped to 3.91?linepairs/cm For the fully sampled DMR, the maximal root mean square (RMS) error was 0.006 in units of relative stopping power. For the limited angle cases the maximal RMS error was 0.18, an almost five-fold improvement over the cone beam CT estimate. Conclusions: Dual modality reconstruction yields the high spatial resolution of cone beam x-ray CT while maintaining the improved stopping power estimation of proton CT. In the case of limited angles, the use of prior image proton CT greatly improves the resolution and stopping power estimate, but does not fully achieve the quality of a 360į proton CT scan.

Hansen, David C., E-mail: dch@ki.au.dk; Bassler, Niels [Experimental Clinical Oncology, Aarhus University, 8000 Aarhus C (Denmark)] [Experimental Clinical Oncology, Aarhus University, 8000 Aarhus C (Denmark); Petersen, JÝrgen Breede Baltzer [Medical Physics, Aarhus University Hospital, 8000 Aarhus C (Denmark)] [Medical Physics, Aarhus University Hospital, 8000 Aarhus C (Denmark); SÝrensen, Thomas Sangild [Computer Science, Aarhus University, 8000 Aarhus C, Denmark and Clinical Medicine, Aarhus University, 8200 Aarhus N (Denmark)] [Computer Science, Aarhus University, 8000 Aarhus C, Denmark and Clinical Medicine, Aarhus University, 8200 Aarhus N (Denmark)

2014-03-15T23:59:59.000Z

347

Analysis of Dual Consistency for Discontinuous Galerkin Discretizations of Source Terms  

E-Print Network [OSTI]

The effects of dual consistency on discontinuous Galerkin discretizations of solution and solution gradient dependent source terms are examined. Two common discretizations are analyzed: the standard weighting technique for ...

Darmofal, David L.

348

A Universal Dual-Fuel Controller for OEM/Aftermarket Diesel Engineswit...  

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

More Documents & Publications Active DPF for Off-Road Particulate Matter (PM) Control Propane-Diesel Dual Fuel for CO2 and Nox Reduction DPF for a Tractor Auxiliary Power Unit...

349

DUAL MODE SCRAMJET: A COMPUTATIONAL INVESTIGATION ON COMBUSTOR DESIGN AND OPERATION.  

E-Print Network [OSTI]

??Numerical analysis was performed on a Dual-Mode Scramjet isolator-combustor. Preliminary analysis was performed to form a baseline geometry. Another study validated the results of aÖ (more)

Milligan, Ryan Timothy

2009-01-01T23:59:59.000Z

350

Reliability of Multi-Terminal Copper Dual-Damascene Interconnect Trees  

E-Print Network [OSTI]

Electromigration tests on different Cu dual-damascene interconnect tree structures consisting of various numbers of straight via-to-via lines connected at the common middle terminal have been carried out. Like Al-based ...

Gan, C.L.

351

Dual-temperature Kalina cycle for geothermal-solar hybrid power systems  

E-Print Network [OSTI]

This thesis analyzes the thermodynamics of a power system coupling two renewable heat sources: low-temperature geothermal and a high-temperature solar. The process, referred to as a dual-temperature geothermal-solar Kalina ...

Boghossian, John G

2011-01-01T23:59:59.000Z

352

Sensitivity analysis of modeling parameters that affect the dual peaking behaviour in coalbed methane reservoirs  

E-Print Network [OSTI]

of the various modeling parameters on its reservoir performance. A dual porosity coalbed methane simulator is used to model primary production from a single well coal seam, for a variety of coal properties for this work. Varying different coal properties...

Okeke, Amarachukwu Ngozi

2006-10-30T23:59:59.000Z

353

Analysis of decentralized potential field based multi-agent navigation via primal-dual Lyapunov theory  

E-Print Network [OSTI]

We use a combination of primal and dual Lyapunov theory for almost global asymptotic stabilization and collision avoidance in multi-agent systems. Previous work provided local analysis around the critical points with the ...

Dimarogonas, Dimos V.

354

Control Strategy for a Dual Loop EGR System to Meet Euro 6 and...  

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

LP- EGR Cooler EGR Mixer HP- EGR Cooler VTG I4 diesel engine, common rail EGR & Turbo Charging System Architecture Base "Dual Loop" EGR system Layout Base engine HW: 2L...

355

Source book for planning nuclear dual-purpose electric/distillation desalination plants  

SciTech Connect (OSTI)

A source book on nuclear dual-purpose electric/distillation desalination plants was prepared to assist government and other planners in preparing broad evaluations of proposed applications of dual-purpose plants. The document is divided into five major sections. Section 1 presents general discussions relating to the benefits of dual-purpose plants, and spectrum for water-to-power ratios. Section 2 presents information on commercial nuclear plants manufactured by US manufacturers. Section 3 gives information on distillation desalting processes and equipment. Section 4 presents a discussion on feedwater pretreatment and scale control. Section 5 deals with methods for coupling the distillation and electrical generating plants to operate in the dual mode.

Reed, S.A.

1981-02-01T23:59:59.000Z

356

Length Effects on the Reliability of Dual-Damascene Cu Interconnects  

E-Print Network [OSTI]

The effects of interconnect length on the reliability of dual-damascene Cu metallization have been investigated. As in Al-based interconnects, the lifetimes of Cu lines increase with decreasing length. However, unlike ...

Wei, F.

357

The effects of aging and dual task performance on language production  

E-Print Network [OSTI]

A digital pursuit rotor task was used to measure dual task costs of language production by young and older adults. After training on the pursuit rotor, participants were asked to track the moving target while providing a ...

Kemper, Susan; Schmalzried, RaLynn Cheri; Herman, Ruth; Leedahl, Skye N.; Mohankumar, Deepthi

2009-05-01T23:59:59.000Z

358

Investigation of the Fundamental Reliability Unit for Cu Dual-Damascene Metallization  

E-Print Network [OSTI]

An investigation has been carried out to determine the fundamental reliability unit of copper dual-damascene metallization. Electromigration experiments have been carried out on straight via-to-via interconnects in the ...

Gan, C.L.

359

Engineering aesthetics and aesthetic ergonomics: Theoretical foundations and a dual-process research methodology  

E-Print Network [OSTI]

Engineering aesthetics and aesthetic ergonomics: Theoretical foundations and a dual, Ann Arbor, MI, 48109-2117, USA Keywords: Engineering aesthetics; Aesthetic ergonomics; Aesthetic human judgments and `educated guesses'. Whilst ergonomics and human factors researchers have made great

Liu, Yili

360

A Nonproliferation Third Party for Dual-use Industries - Legal Issues for Consideration  

SciTech Connect (OSTI)

This paper discusses legal issues in connection with formation of a ďthird partyĒ to facilitate information sharing and best practices by companies in nuclear-related dual-use industries.

Morris, Frederic A.; Seward, Amy M.; Kurzrok, Andrew J.

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "dual overhead cam" 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

Cryptanalysis of Dual CRT-RSA Santanu Sarkar and Subhamoy Maitra  

E-Print Network [OSTI]

Cryptanalysis of Dual CRT-RSA Santanu Sarkar and Subhamoy Maitra Applied Statistics Unit, Indian Statistical Institute, 203 B T Road, Kolkata 700 108, India sarkar.santanu.bir@gmail.com, subho

Paris-Sud XI, Université de

362

Different effects of dual task demands on the speech of young and older adults  

E-Print Network [OSTI]

Kemper, S., Herman, R. E., Nartowicz, J.(2005). Different Effects of Dual Task Demands on the Speech of Young and Older Adults. Aging, Neuropsychology, and Cognition, 12, 340-358. PM#1410812. Publisherís official version: http://dx.doi.org/10...., Nartowicz, J.(2005). Different Effects of Dual Task Demands on the Speech of Young and Older Adults. Aging, Neuropsychology, and Cognition, 12, 340-358. PM#1410812 Abstract: Young and older adults provided language samples in response to elicitation...

Kemper, Susan; Herman, Ruth; Nartowicz, Jennifer

2005-12-01T23:59:59.000Z

363

Producing thin film photovoltaic modules with high integrity interconnects and dual layer contacts  

DOE Patents [OSTI]

High performance photovoltaic modules are produced with improved interconnects by a special process. Advantageously, the photovoltaic modules have a dual layer back (rear) contact and a front contact with at least one layer. The front contact and the inner layer of the back contact can comprise a transparent conductive oxide. The outer layer of the back contact can comprise a metal or metal oxide. The front contact can also have a dielectric layer. In one form, the dual layer back contact comprises a zinc oxide inner layer and an aluminum outer layer and the front contact comprises a tin oxide inner layer and a silicon dioxide dielectric outer layer. One or more amorphous silicon-containing thin film semiconductors can be deposited between the front and back contacts. The contacts can be positioned between a substrate and an optional superstrate. During production, the transparent conductive oxide layer of the front contact is scribed by a laser, then the amorphous silicon-containing semiconductors and inner layer of the dual layer back contact are simultaneously scribed and trenched (drilled) by the laser and the trench is subsequently filled with the same metal as the outer layer of the dual layer back contact to provide a superb mechanical and electrical interconnect between the front contact and the outer layer of the dual layer back contact. The outer layer of the dual layer back contact can then be scribed by the laser. For enhanced environmental protection, the photovoltaic modules can be encapsulated.

Jansen, Kai W. (Lawrenceville, NJ); Maley, Nagi (Exton, PA)

2001-01-01T23:59:59.000Z

364

Dual Gravitons in AdS4/CFT3 and the Holographic Cotton Tensor  

E-Print Network [OSTI]

We argue that gravity theories in AdS4 are holographically dual to either of two three-dimensional CFT's: the usual Dirichlet CFT1 where the fixed graviton acts as a source for the stress-energy tensor, and a dual CFT2 with a fixed dual graviton which acts as a source for a dual stress-energy tensor. The dual stress-energy tensor is shown to be the Cotton tensor of the Dirichlet CFT. The two CFT's are related by a Legendre transformation generated by a gravitational Chern-Simons coupling. This duality is a gravitational version of electric-magnetic duality valid at any radius r, where the renormalized stress-energy tensor is the electric field and the Cotton tensor is the magnetic field. Generic Robin boundary conditions lead to CFT's coupled to Cotton gravity or topologically massive gravity. Interaction terms with CFT1 lead to a non-zero vev of the stress-energy tensor in CFT2 coupled to gravity even after the source is removed. We point out that the dual graviton also exists beyond the linearized approximation, and spell out some of the details of the non-linear construction.

Sebastian de Haro

2008-08-15T23:59:59.000Z

365

Flavor independence and the dual superconducting model of QCD  

SciTech Connect (OSTI)

Baker, Ball, and Zachariasen (BBZ) have developed an elegant formulation of the dual superconducting model of quantum chromodynamics (QCD), which allows one to use the field equations to eliminate the gluon and Higgs degrees of freedom and thus to express the interaction between quarks as an effective potential. Carrying out an expansion in inverse powers of the constituent quark masses, these authors succeeded in identifying the central part, the spin-dependent part, and the leading relativistic corrections to the central potential. The potential offers a good account of the energies and splittings of charmonium and the upsilon system. Since all of the flavor dependence of the interaction is presumed to enter through the constituent masses, it is possible to test the potential in other systems. Logical candidates are the heavy B-flavor charmed system and the heavy-light systems, which should be more sensitive to the relativistic corrections. Lattice gauge calculations furnish an additional point of contact for the components of the BBZ potential. Some preliminary calculations of the energies of B and D mesons are presented and the challenge of agreement with experiment is discussed. The spinless Salpeter equation is used to account for the effects of relativistic kinematics. {copyright} {ital 1997} {ital The American Physical Society}

Fulcher, L.P. [Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403 (United States)] [Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403 (United States)

1998-01-01T23:59:59.000Z

366

Indirect-fired gas turbine dual fuel cell power cycle  

DOE Patents [OSTI]

A fuel cell and gas turbine combined cycle system which includes dual fuel cell cycles combined with a gas turbine cycle wherein a solid oxide fuel cell cycle operated at a pressure of between 6 to 15 atms tops the turbine cycle and is used to produce CO.sub.2 for a molten carbonate fuel cell cycle which bottoms the turbine and is operated at essentially atmospheric pressure. A high pressure combustor is used to combust the excess fuel from the topping fuel cell cycle to further heat the pressurized gas driving the turbine. A low pressure combustor is used to combust the excess fuel from the bottoming fuel cell to reheat the gas stream passing out of the turbine which is used to preheat the pressurized air stream entering the topping fuel cell before passing into the bottoming fuel cell cathode. The CO.sub.2 generated in the solid oxide fuel cell cycle cascades through the system to the molten carbonate fuel cell cycle cathode.

Micheli, Paul L. (Sacramento, CA); Williams, Mark C. (Morgantown, WV); Sudhoff, Frederick A. (Morgantown, WV)

1996-01-01T23:59:59.000Z

367

Dual-band infrared capabilities for imaging buried object sites  

SciTech Connect (OSTI)

We discuss dual-band infrared (DBIR) capabilities for imaging buried object sizes. We identify physical features affecting thermal contrast needed to distinguish buried object sites from undisturbed sites or surface clutter. Apart from atmospheric transmission and system performance, these features include: object size, shape, and burial depth; ambient soil, disturbed soil and object site thermal diffusivity differences; surface temperature, emissivity, plant-cover, slope, albedo and roughness variations; weather conditions and measurement times. We use good instrumentation to measure the time-varying temperature differences between buried object sites and undisturbed soil sites. We compare near surface soil temperature differences with radiometric infrared (IR) surface temperature differences recorded at 4.7 {plus_minus} 0.4 {mu}m and at 10.6 {plus_minus} 1.0 {mu}m. By producing selective DBIR image ratio maps, we distinguish temperature-difference patterns from surface emissivity effects. We discuss temperature differences between buried object sites, filled hole site (without buried objects), cleared (undisturbed) soil sites, and grass-covered sites (with and without different types of surface clutter). We compare temperature, emissivity-ratio, visible and near-IR reflectance signatures of surface objects, leafy plants and sod. We discuss the physical aspects of environmental, surface and buried target features affecting interpretation of buried targets, surface objects and natural backgrounds.

Del Grande, N.K.; Durbin, P.F.; Gorvad, M.R.; Perkins, D.E.; Clark, G.A.; Hernandez, J.E.; Sherwood, R.J.

1993-04-02T23:59:59.000Z

368

DUAL HALOS AND FORMATION OF EARLY-TYPE GALAXIES  

SciTech Connect (OSTI)

We present a determination of the two-dimensional shape parameters of the blue and red globular cluster systems (GCSs) in a large number of elliptical galaxies and lenticular galaxies (early-type galaxies, called ETGs). We use a homogeneous data set of the globular clusters in 23 ETGs obtained from the HST/ACS Virgo Cluster Survey. The position angles of both blue and red GCSs show a correlation with those of the stellar light distribution, showing that the major axes of the GCSs are well aligned with those of their host galaxies. However, the shapes of the red GCSs show a tight correlation with the stellar light distribution as well as with the rotation property of their host galaxies, while the shapes of the blue GCSs do much less. These provide clear geometric evidence that the origins of the blue and red globular clusters are distinct and that ETGs may have dual halos: a blue (metal-poor) halo and a red (metal-rich) halo. These two halos show significant differences in metallicity, structure, and kinematics, indicating that they are formed in two distinguishable ways. The red halos might have formed via dissipational processes with rotation, while the blue halos are through accretion.

Park, Hong Soo; Lee, Myung Gyoon, E-mail: hspark@astro.snu.ac.kr, E-mail: mglee@astro.snu.ac.kr [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of)

2013-08-20T23:59:59.000Z

369

Dual energy scanning beam laminographic x-radiography  

DOE Patents [OSTI]

A multiple x-ray energy level imaging system includes a scanning x-ray beam and two detector design having a first low x-ray energy sensitive detector and a second high x-ray energy sensitive detector. The low x-ray energy detector is placed next to or in front of the high x-ray energy detector. The low energy sensitive detector has small stopping power for x-rays. The lower energy x-rays are absorbed and converted into electrical signals while the majority of the higher energy x-rays pass through undetected. The high energy sensitive detector has a large stopping power for x-rays as well as it having a filter placed between it and the object to absorb the lower energy x-rays. In a second embodiment; a single energy sensitive detector is provided which provides an output signal proportional to the amount of energy in each individual x-ray it absorbed. It can then have an electronic threshold or thresholds set to select two or more energy ranges for the images. By having multiple detectors located at different positions, a dual energy laminography system is possible.

Majewski, Stanislaw (Grafton, VA); Wojcik, Randolph F. (Yorktown, VA)

1998-01-01T23:59:59.000Z

370

Dual energy scanning beam laminographic x-radiography  

DOE Patents [OSTI]

A multiple x-ray energy level imaging system includes a scanning x-ray beam and two detector design having a first low x-ray energy sensitive detector and a second high x-ray energy sensitive detector. The low x-ray energy detector is placed next to or in front of the high x-ray energy detector. The low energy sensitive detector has small stopping power for x-rays. The lower energy x-rays are absorbed and converted into electrical signals while the majority of the higher energy x-rays pass through undetected. The high energy sensitive detector has a large stopping power for x-rays as well as it having a filter placed between it and the object to absorb the lower energy x-rays. In a second embodiment; a single energy sensitive detector is provided which provides an output signal proportional to the amount of energy in each individual x-ray it absorbed. It can then have an electronic threshold or thresholds set to select two or more energy ranges for the images. By having multiple detectors located at different positions, a dual energy laminography system is possible. 6 figs.

Majewski, S.; Wojcik, R.F.

1998-04-21T23:59:59.000Z

371

Searching for flickering variability in several symbiotic stars and related objects: BX Mon, V471 Per, RS Oph, V627 Cas, CI Cam V886 Her, Z And, T CrB, MWC 560, V407 Cyg  

E-Print Network [OSTI]

UBVRI photometry observations of 10 symbiotic stars and related objects obtained in the period 2002-2003 are presented. Analysing differential light curves we found rapid light variations with timescales of tens of minutes and significant amplitudes in the well-known flickerers MWC 560, RS Oph, V407 Cyg and T CrB. MWC 560 and V407 Cyg demonstrate quasi periodic oscillations (QPO) with similar amplitudes and timescales. Flickering and unusual flare in V627 Cas as well as some indications of flickering presence in BX Mon are detected. The existence of 29 minutes oscillations in Z And with an amplitude about 0.02 mag in U band is confirmed. Only one symbiotic star, V471 Per, and both non symbiotic, CI Cam and V886 Her seem to be constant on flickering timescales. Nevertheless, small night to night changes in the brightness of V886 Her were observed as well.

M. Gromadzki; M. Mikolajewski; T. Tomov; I. Bellas-Velidis; A. Dapergolas; C. Galan

2006-04-05T23:59:59.000Z

372

Virtual monochromatic imaging in dual-source and dual-energy CT for visualization of acute ischemic stroke  

E-Print Network [OSTI]

We have recently developed a phantom that simulates acute ischemic stroke. We attempted to visualize acute-stage cerebral infarction by applying virtual monochromatic images to this phantom using dual-energy CT (DECT). Virtual monochromatic images were created using DECT from 40 to 100 keV at every 10 keV and from 60 to 80 keV at every 1 keV, under three energy conditions of tube voltages with thin (Sn) filters. Calculation of the CNR values allowed us to evaluate the visualization of acute-stage cerebral infarction. The CNR value of a virtual monochromatic image was the highest at 68 keV under 80 kV / Sn 140 kV, at 72 keV under 100 kV / Sn 140 kV, and at 67 keV under 140 kV / 80 kV. The CNR values of virtual monochromatic images between 65 and 75 keV were significantly higher than those obtained for all other created energy images. Therefore, optimal conditions for visualizing acute ischemic stroke were achievable.

Hara, Hidetake; Matsuzawa, Hiroki; Inoue, Toshiyuki; Abe, Shinji; Satoh, Hitoshi; Nakajima, Yasuo

2015-01-01T23:59:59.000Z

373

Design of a dual species atom interferometer for space  

E-Print Network [OSTI]

Atom interferometers have a multitude of proposed applications in space including precise measurements of the Earth's gravitational field, in navigation & ranging, and in fundamental physics such as tests of the weak equivalence principle (WEP) and gravitational wave detection. While atom interferometers are realized routinely in ground-based laboratories, current efforts aim at the development of a space compatible design optimized with respect to dimensions, weight, power consumption, mechanical robustness and radiation hardness. In this paper, we present a design of a high-sensitivity differential dual species $^{85}$Rb/$^{87}$Rb atom interferometer for space, including physics package, laser system, electronics and software. The physics package comprises the atom source consisting of dispensers and a 2D magneto-optical trap (MOT), the science chamber with a 3D-MOT, a magnetic trap based on an atom chip and an optical dipole trap (ODT) used for Bose-Einstein condensate (BEC) creation and interferometry, the detection unit, the vacuum system for $10^{-11}$ mbar ultra-high vacuum generation, and the high-suppression factor magnetic shielding as well as the thermal control system. The laser system is based on a hybrid approach using fiber-based telecom components and high-power laser diode technology and includes all laser sources for 2D-MOT, 3D-MOT, ODT, interferometry and detection. Manipulation and switching of the laser beams is carried out on an optical bench using Zerodur bonding technology. The instrument consists of 9 units with an overall mass of 221 kg, an average power consumption of 608 W (819 W peak), and a volume of 470 liters which would well fit on a satellite to be launched with a Soyuz rocket, as system studies have shown.

Thilo Schuldt; Christian Schubert; Markus Krutzik; Lluis Gesa Bote; Naceur Gaaloul; Jonas Hartwig; Holger Ahlers; Waldemar Herr; Katerine Posso-Trujillo; Jan Rudolph; Stephan Seidel; Thijs Wendrich; Wolfgang Ertmer; Sven Herrmann; Andrť Kubelka-Lange; Alexander Milke; Benny Rievers; Emanuele Rocco; Andrew Hinton; Kai Bongs; Markus Oswald; Matthias Franz; Matthias Hauth; Achim Peters; Ahmad Bawamia; Andreas Wicht; Baptiste Battelier; Andrea Bertoldi; Philippe Bouyer; Arnaud Landragin; Didier Massonnet; Thomas LťvŤque; Andre Wenzlawski; Ortwin Hellmig; Patrick Windpassinger; Klaus Sengstock; Wolf von Klitzing; Chris Chaloner; David Summers; Philip Ireland; Ignacio Mateos; Carlos F. Sopuerta; Fiodor Sorrentino; Guglielmo M. Tino; Michael Williams; Christian Trenkel; Domenico Gerardi; Michael Chwalla; Johannes Burkhardt; Ulrich Johann; Astrid Heske; Eric Wille; Martin Gehler; Luigi Cacciapuoti; Norman GŁrlebeck; Claus Braxmaier; Ernst Rasel

2014-12-08T23:59:59.000Z

374

Effects of quenching and tempering on the microstructure and bake hardening behavior of ferrite and dual phase steels  

E-Print Network [OSTI]

and dual phase steels C.F. Kuang a,n , J. Li b , S.G. Zhang a , J. Wang b , H.F. Liu b , A.A. Volinsky c online 3 July 2014 Keywords: Bake hardening Quenching Tempering Dual phase steel a b s t r a c of both ferrite and dual phase steels were investigated. The C­Mn steels were heated to the soaking

Volinsky, Alex A.

375

Inspection report: the Department of Energy's export licensing process for dual-use and munitions commodities  

SciTech Connect (OSTI)

Export of commodities, encouraged by both the private sector and the Federal Government, helps to improve our position in the global economy and is in the national interest of the US. However, exports of commodities or technologies, without regard to whether they may significantly contribute to the military potential of individual countries or combination of countries or enhance the proliferation of weapons of mass destruction, may adversely affect the national security of the US. The Federal Government, therefore, implements several laws, Executive Orders, and regulations to control the export of certain commodities and technologies. These commodities and technologies require a license for export. Some of the controlled items are designated as ''dual-use,'' that is, commodities and technologies that have both civilian and military application. Some dual-use commodities are designated as ''nuclear dual-use''--items controlled for nuclear nonproliferation purposes. Another group of controlled commodities is designated as munitions, which are goods and technologies that have solely military uses. The Department of Energy (Energy) conducts reviews of export license applications for nuclear dual-use items and certain munitions. On August 26, 1998, the Chairman of the Senate Committee on Governmental Affairs requested that the Inspectors General from the Departments of Commerce, Defense, Energy, State, and Treasury, and the Central Intelligence Agency (CIA), update and expand on a 1993 interagency review conducted by the Inspectors General of the Departments of Commerce, Defense, Energy, and State of the export licensing processes for dual-use and munitions commodities.

Friedman, Gregory H.

1999-05-01T23:59:59.000Z

376

Does Dual Ownership of Waste Imply a Regional Disposal Approach?  

SciTech Connect (OSTI)

The construction of the Nuclear Power Plant Krsko, being located in Slovenia near the Slovenian-Croatian border, was a joint investment by Slovenia and Croatia, two republics of the former Yugoslavia. The plant was completed in 1981 and the commercial operation started early in 1983. The obligations and rights of both investors during the construction and operation were specified in two bilateral contracts signed in 1974 and 1982. These contracts were fairly detailed on construction, operation and exploitation of the nuclear power plant (NPP), but they said very little about future nuclear liabilities. The electricity production was equally shared between the two countries and both parties participated in management of the NPP. In 1991, after Slovenia and Croatia became two independent countries, the agreement on the ownership and exploitation of the NPP Krsko was re-negotiated and a new contract signed in 2003. By the new contract the decommissioning and the disposal of spent fuel (SF) as well as low and intermediate level waste (LILW) is the responsibility of both parties, and the financial resources for covering these liabilities should be equally provided. Regardless of shared ownership of waste, the agreement opts for a single disposal solution for LILW as well as for SF, but the details are left open. More clear elaboration of these responsibilities is given in the programme of the decommissioning and disposal of radioactive waste from the NPP which was jointly prepared by the Slovenian and Croatian waste management organisations in 2004. The programme is clearly opting for only one repository for LILW and one repository for spent fuel, which can be located either in Slovenia or Croatia. Irrespective of the country where such a repository will be sited, dual ownership of waste opens up another dimension of such a solution: will such a repository be regarded as a national facility or as a regional or multinational facility? Both options-national and regional/multinational- may have a strong influence on future agreements on waste disposal, but so far these aspects have not been addressed either in Slovenia or Croatia. The paper brings reflections and discussion on these aspects of waste management in Slovenia and reveals the current situation of the waste disposal project in the country. (authors)

Mele, I. [ARAO - Agency for Radwaste Management, Parmova 53, Si-1000 Ljubljana (Slovenia)

2006-07-01T23:59:59.000Z

377

Dual capacity compressor with reversible motor and controls arrangement therefor  

DOE Patents [OSTI]

A hermetic reciprocating compressor such as may be used in heat pump applications is provided for dual capacity operation by providing the crankpin of the crankshaft with an eccentric ring rotatably mounted thereon, and with the end of the connecting rod opposite the piston encompassing the outer circumference of the eccentric ring, with means limiting the rotation of the eccentric ring upon the crankpin between one end point and an opposite angularly displaced end point to provide different values of eccentricity depending upon which end point the eccentric ring is rotated to upon the crankpin, and a reversible motor in the hermetic shell of the compressor for rotating the crankshaft, the motor operating in one direction effecting the angular displacement of the eccentric ring relative to the crankpin to the one end point, and in the opposite direction effecting the angular displacement of the eccentric ring relative to the crankpin to the opposite end point, this arrangement automatically giving different stroke lengths depending upon the direction of motor rotation. The mechanical structure of the arrangement may take various forms including at least one in which any impact of reversal is reduced by utilizing lubricant passages and chambers at the interface area of the crankpin and eccentric ring to provide a dashpot effect. In the main intended application of the arrangement according to the invention, that is, in a refrigerating or air conditioning system, it is desirable to insure a delay during reversal of the direction of compressor operation. A control arrangement is provided in which the control system controls the direction of motor operation in accordance with temperature conditions, the system including control means for effecting operation in a low capacity direction or alternatively in a high capacity direction in response to one set, and another set, respectively, of temperature conditions and with timer means delaying a restart of the compressor motor for at least a predetermined time in response to a condition of the control means operative to initiate a change in the operating direction of the compressor when it restarts.

Sisk, Francis J. (Washington Township, Fayette County, PA)

1980-12-02T23:59:59.000Z

378

Turbine airfoil with dual wall formed from inner and outer layers separated by a compliant structure  

DOE Patents [OSTI]

A turbine airfoil usable in a turbine engine with a cooling system and a compliant dual wall configuration configured to enable thermal expansion between inner and outer layers while eliminating stress formation is disclosed. The compliant dual wall configuration may be formed a dual wall formed from inner and outer layers separated by a compliant structure. The compliant structure may be configured such that the outer layer may thermally expand without limitation by the inner layer. The compliant structure may be formed from a plurality of pedestals positioned generally parallel with each other. The pedestals may include a first foot attached to a first end of the pedestal and extending in a first direction aligned with the outer layer, and may include a second foot attached to a second end of the pedestal and extending in a second direction aligned with the inner layer.

Campbell; Christian X. (Oviedo, FL), Morrison; Jay A. (Oviedo, FL)

2011-12-20T23:59:59.000Z

379

Attonewton force detection using microspheres in a dual-beam optical trap in high vacuum  

E-Print Network [OSTI]

We describe the implementation of laser-cooled silica microspheres as force sensors in a dual-beam optical dipole trap in high vacuum. Using this system we have demonstrated trap lifetimes exceeding several days, attonewton force detection capability, and wide tunability in trapping and cooling parameters. Measurements have been performed with charged and neutral beads to calibrate the sensitivity of the detector. This work establishes the suitability of dual beam optical dipole traps for precision force measurement in high vacuum with long averaging times, and enables future applications including the study of gravitational inverse square law violations at short range, Casimir forces, acceleration sensing, and quantum opto-mechanics.

Gambhir Ranjit; David P. Atherton; Jordan H. Stutz; Mark Cunningham; Andrew A. Geraci

2015-04-03T23:59:59.000Z

380

Simulation results of single refrigerants for use in a dual-circuit refrigerator/freezer  

SciTech Connect (OSTI)

Dual-circuit RFs have been shown to have a theoretical advantage over single-evaporator RFs if the compressor efficiencies of the separate loops are equivalent to the compressor efficiency of the combined system. Single refrigerants were analyzed to determine the optimum pure refrigerant in each of the two separate freezer and fresh food loops. R-152a and R-142b were determined to be the optimum single refrigerants in the dual-circuit system. With the assumptions made, theoretical energy savings of up to 23% of compressor power are possible.

Bare, J.C. (Environmental Protection Agency, Research Triangle Park, NC (United States))

1992-02-01T23:59:59.000Z

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381

Cyclic Combustion Variations in Dual Fuel Partially Premixed Pilot-Ignited Natural Gas Engines  

SciTech Connect (OSTI)

Dual fuel pilot ignited natural gas engines are identified as an efficient and viable alternative to conventional diesel engines. This paper examines cyclic combustion fluctuations in conventional dual fuel and in dual fuel partially premixed low temperature combustion (LTC). Conventional dual fueling with 95% (energy basis) natural gas (NG) substitution reduces NOx emissions by almost 90%t relative to straight diesel operation; however, this is accompanied by 98% increase in HC emissions, 10 percentage points reduction in fuel conversion efficiency (FCE) and 12 percentage points increase in COVimep. Dual fuel LTC is achieved by injection of a small amount of diesel fuel (2-3 percent on an energy basis) to ignite a premixed natural gas√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?air mixture to attain very low NOx emissions (less than 0.2 g/kWh). Cyclic variations in both combustion modes were analyzed by observing the cyclic fluctuations in start of combustion (SOC), peak cylinder pressures (Pmax), combustion phasing (Ca50), and the separation between the diesel injection event and Ca50 (termed √?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?relative combustion phasing√?¬?√?¬?√?¬?√?¬Ę√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬Ě). For conventional dual fueling, as % NG increases, Pmax decreases, SOC and Ca50 are delayed, and cyclic variations increase. For dual fuel LTC, as diesel injection timing is advanced from 20√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬į to 60√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬?√?¬įBTDC, the relative combustion phasing is identified as an important combustion parameter along with SoC, Pmax, and CaPmax. For both combustion modes, cyclic variations were characterized by alternating slow and fast burn cycles, especially at high %NG and advanced injection timings. Finally, heat release return maps were analyzed to demonstrate thermal management strategies as an effective tool to mitigate cyclic combustion variations, especially in dual fuel LTC.

Srinivasan, K. K.; Krishnan, S. R.

2012-05-09T23:59:59.000Z

382

Pre-Combustion Carbon Dioxide Capture by a New Dual Phase Ceramic-Carbonate Membrane Reactor  

SciTech Connect (OSTI)

This report documents synthesis, characterization and carbon dioxide permeation and separation properties of a new group of ceramic-carbonate dual-phase membranes and results of a laboratory study on their application for water gas shift reaction with carbon dioxide separation. A series of ceramic-carbonate dual phase membranes with various oxygen ionic or mixed ionic and electronic conducting metal oxide materials in disk, tube, symmetric, and asymmetric geometric configurations was developed. These membranes, with the thickness of 10 ?m to 1.5 mm, show CO2 permeance in the range of 0.5-5◊10-7 mol∑m-2∑s-1∑Pa-1 in 500-900oC and measured CO2/N2 selectivity of up to 3000. CO2 permeation mechanism and factors that affect CO2 permeation through the dual-phase membranes have been identified. A reliable CO2 permeation model was developed. A robust method was established for the optimization of the microstructures of ceramic-carbonate membranes. The ceramic-carbonate membranes exhibit high stability for high temperature CO2 separations and water gas shift reaction. Water gas shift reaction in the dual-phase membrane reactors was studied by both modeling and experiments. It is found that high temperature syngas water gas shift reaction in tubular ceramic-carbonate dual phase membrane reactor is feasible even without catalyst. The membrane reactor exhibits good CO2 permeation flux, high thermal and chemical stability and high thermal shock resistance. Reaction and separation conditions in the membrane reactor to produce hydrogen of 93% purity and CO2 stream of >95% purity, with 90% CO2 capture have been identified. Integration of the ceramic-carbonate dual-phase membrane reactor with IGCC process for carbon dioxide capture was analyzed. A methodology was developed to identify optimum operation conditions for a membrane tube of given dimensions that would treat coal syngas with targeted performance. The calculation results show that the dual-phase membrane reactor could improve IGCC process efficiency but the cost of the membrane reactor with membranes having current CO2 permeance is high. Further research should be directed towards improving the performance of the membranes and developing cost-effective, scalable methods for fabrication of dual-phase membranes and membrane reactors.

Lin, Jerry

2014-09-30T23:59:59.000Z

383

Attonewton force detection using microspheres in a dual-beam optical trap in high vacuum  

E-Print Network [OSTI]

We describe the implementation of laser-cooled silica microspheres as force sensors in a dual-beam optical dipole trap in high vacuum. Using this system we have demonstrated trap lifetimes exceeding several days, attonewton force detection capability, and wide tunability in trapping and cooling parameters. Measurements have been performed with charged and neutral beads to calibrate the sensitivity of the detector. This work establishes the suitability of dual beam optical dipole traps for precision force measurement in high vacuum with long averaging times, and enables future applications including the study of gravitational inverse square law violations at short range, Casimir forces, acceleration sensing, and quantum opto-mechanics.

Ranjit, Gambhir; Stutz, Jordan H; Cunningham, Mark; Geraci, Andrew A

2015-01-01T23:59:59.000Z

384

Attonewton force detection using microspheres in a dual-beam optical trap in high vacuum  

E-Print Network [OSTI]

We describe the implementation of laser-cooled silica microspheres as force sensors in a dual-beam optical dipole trap in high vacuum. Using this system we have demonstrated trap lifetimes exceeding several days, attonewton force detection capability, and wide tunability in trapping and cooling parameters. Measurements have been performed with charged and neutral beads to calibrate the sensitivity of the detector. This work establishes the suitability of dual beam optical dipole traps for precision force measurement in high vacuum with long averaging times, and enables future applications including the study of gravitational inverse square law violations at short range, Casimir forces, acceleration sensing, and quantum opto-mechanics.

Gambhir Ranjit; David P. Atherton; Jordan H. Stutz; Mark Cunningham; Andrew A. Geraci

2015-03-30T23:59:59.000Z

385

MAX232, MAX232I DUAL EIA 232 DRIVERS/RECEIVERS  

E-Print Network [OSTI]

+ C1- C2+ C2- VS- T2OUT R2IN VCC GND T1OUT R1IN R1OUT T1IN T2IN R2OUT MAX232 . . . D, DW, N, OR NSIN T2OUT R2INR2OUT 11 10 12 9 14 7 13 8 #12;MAX232, MAX232I DUAL EIA 232 DRIVERS/RECEIVERS SLLS047LMAX232, MAX232I DUAL EIA 232 DRIVERS/RECEIVERS SLLS047L - FEBRUARY 1989 - REVISED MARCH 2004 1POST

Ravikumar, B.

386

Mod\\'elisation multidomaine du comportement magn\\'eto-m\\'ecanique des aciers dual-phases  

E-Print Network [OSTI]

The microstructure and mechanical behavior of dual-phase steels are highly sensitive to the variation of the process (heat treatments). Online control by magnetic method is relevant. A measurement under applied stress must be considered. The dual-phase is a two-phase medium (ferrite / martensite). Each phase can be considered as a sphere embedded in a homogeneous equivalent medium. The model used for each phase is based on a magneto-mechanical coupled model. This is an explicit single crystalline model representative of the behavior of the corresponding phase. Localization rules allow the simulation of the two-phases medium. Experiments and modeling are compared.

Mballa, Frederick Mballa; Lazreg, Said; Meilland, Philip

2011-01-01T23:59:59.000Z

387

High-Performance Integrated Dual-Gate AlGaN/GaN Enhancement-Mode Transistor  

E-Print Network [OSTI]

In this letter, we present a new AlGaN/GaN enhancement-mode (E-mode) transistor based on a dual-gate structure. The dual gate allows the transistor to combine an E-mode behavior with low on-resistance and very high breakdown ...

Lu, Bin

388

1634 IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 12, 2013 A Compact Dual-Band Rectenna Using Slot-Loaded  

E-Print Network [OSTI]

, dual-band rectenna, dual-band rectifier, energy harvesting, wireless power transmission. I bands, RF energy harvesters capable of operating in multiple bands are of great importance. Nowadays by a microwave signal of available power of 9 dBm for a load resistor of 2.2 k . Index Terms--Dipole antenna

Tentzeris, Manos

389

A Combinational Approach to the Fusion, De-noising and Enhancement of Dual-Energy X-Ray Luggage Images  

E-Print Network [OSTI]

dual-energy X-ray images for better object classification and threat detection. The fusion stepA Combinational Approach to the Fusion, De-noising and Enhancement of Dual-Energy X-Ray Luggage-based noise reduction technique which is very efficient in removing background noise from fused X-ray images

Abidi, Mongi A.

390

Beamforming in Intelligent Randomly Distributed Sensor Networks using Electrically-Small Dual-Sector Antennas for Planetary Exploration  

E-Print Network [OSTI]

Beamforming in Intelligent Randomly Distributed Sensor Networks using Electrically-Small Dual-Sector, an electrically small dual-sector antenna is developed which gives 100 MHz of 2:1 VSWR bandwidth from 2.61 GHz - 2 The antenna developed for each sensor is based on the electrically small inductively-loaded stacked sector

Singer, Andrew C

391

Microstructural Origins of Variability in the Tensile Ductility of Dual Phase Steels Claire Teresi, Clemson University, SURF Fellow  

E-Print Network [OSTI]

Microstructural Origins of Variability in the Tensile Ductility of Dual Phase Steels Claire Teresi Introduction: Dual phase (DP) steels are a class of advanced high strength structural steels that also have automotive applications. Generally composed of two primary phases- martensite and ferrite- these steels have

Li, Mo

392

A study of large plastic deformations in dual phase steel using digital image correlation and FE analysis  

E-Print Network [OSTI]

1 A study of large plastic deformations in dual phase steel using digital image correlation and FE phase steel DP800 is studied experimentally and numerically. Shear testing is applied to obtain large Materials and Chemistry, NO-7465 Trondheim, Norway Abstract Large plastic deformation in sheets made of dual

Paris-Sud XI, Université de

393

Gluon propagators in the deep IR region and non-Abelian dual superconductivity for SU(3) Yang-Mills  

E-Print Network [OSTI]

We have presented non-Abelian dual superconductivity picture in the SU(3) Yang-Mills(YM) theory, and shown evidences such as the restricted U(2)-field dominance and the non-Abelian magnetic monopole dominance in the string tension. To establish the dual superconductivity picture, the dual Meissner effect in Yang-Mills theory must be examined, and we also presented the evidence of non-Abelian dual Meissner effect by measuring chromo-electric flux tube in the last lattice conferences. In this talk, by applying a new formulation of the YM theory on a lattice, the we further investigate the non-Abelian dual Meissner effect for SU(3) YM theory through correlation function. We examine non-abelian magnetic monopole currents as well as color flux created by the quark-antiquark source.

Akihiro Shibata; Kei-Ichi Kondo; Seikou Kato; Toru Shinohara

2012-12-12T23:59:59.000Z

394

Iterative image-domain decomposition for dual-energy CT  

SciTech Connect (OSTI)

Purpose: Dual energy CT (DECT) imaging plays an important role in advanced imaging applications due to its capability of material decomposition. Direct decomposition via matrix inversion suffers from significant degradation of image signal-to-noise ratios, which reduces clinical values of DECT. Existing denoising algorithms achieve suboptimal performance since they suppress image noise either before or after the decomposition and do not fully explore the noise statistical properties of the decomposition process. In this work, the authors propose an iterative image-domain decomposition method for noise suppression in DECT, using the full variance-covariance matrix of the decomposed images. Methods: The proposed algorithm is formulated in the form of least-square estimation with smoothness regularization. Based on the design principles of a best linear unbiased estimator, the authors include the inverse of the estimated variance-covariance matrix of the decomposed images as the penalty weight in the least-square term. The regularization term enforces the image smoothness by calculating the square sum of neighboring pixel value differences. To retain the boundary sharpness of the decomposed images, the authors detect the edges in the CT images before decomposition. These edge pixels have small weights in the calculation of the regularization term. Distinct from the existing denoising algorithms applied on the images before or after decomposition, the method has an iterative process for noise suppression, with decomposition performed in each iteration. The authors implement the proposed algorithm using a standard conjugate gradient algorithm. The method performance is evaluated using an evaluation phantom (Catphan©600) and an anthropomorphic head phantom. The results are compared with those generated using direct matrix inversion with no noise suppression, a denoising method applied on the decomposed images, and an existing algorithm with similar formulation as the proposed method but with an edge-preserving regularization term. Results: On the Catphan phantom, the method maintains the same spatial resolution on the decomposed images as that of the CT images before decomposition (8 pairs/cm) while significantly reducing their noise standard deviation. Compared to that obtained by the direct matrix inversion, the noise standard deviation in the images decomposed by the proposed algorithm is reduced by over 98%. Without considering the noise correlation properties in the formulation, the denoising scheme degrades the spatial resolution to 6 pairs/cm for the same level of noise suppression. Compared to the edge-preserving algorithm, the method achieves better low-contrast detectability. A quantitative study is performed on the contrast-rod slice of Catphan phantom. The proposed method achieves lower electron density measurement error as compared to that by the direct matrix inversion, and significantly reduces the error variation by over 97%. On the head phantom, the method reduces the noise standard deviation of decomposed images by over 97% without blurring the sinus structures. Conclusions: The authors propose an iterative image-domain decomposition method for DECT. The method combines noise suppression and material decomposition into an iterative process and achieves both goals simultaneously. By exploring the full variance-covariance properties of the decomposed images and utilizing the edge predetection, the proposed algorithm shows superior performance on noise suppression with high image spatial resolution and low-contrast detectability.

Niu, Tianye; Dong, Xue; Petrongolo, Michael; Zhu, Lei, E-mail: leizhu@gatech.edu [Nuclear and Radiological Engineering and Medical Physics Programs, The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)] [Nuclear and Radiological Engineering and Medical Physics Programs, The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

2014-04-15T23:59:59.000Z

395

System-Level Logistics for Dual Purpose Canister Disposal  

SciTech Connect (OSTI)

The analysis presented in this report investigated how the direct disposal of dual purpose canisters (DPCs) may be affected by the use of standard transportation aging and disposal canisters (STADs), early or late start of the repository, and the repository emplacement thermal power limits. The impacts were evaluated with regard to the availability of the DPCs for emplacement, achievable repository acceptance rates, additional storage required at an interim storage facility (ISF) and additional emplacement time compared to the corresponding repackaging scenarios, and fuel age at emplacement. The result of this analysis demonstrated that the biggest difference in the availability of UNF for emplacement between the DPC-only loading scenario and the DPCs and STADs loading scenario is for a repository start date of 2036 with a 6 kW thermal power limit. The differences are also seen in the availability of UNF for emplacement between the DPC-only loading scenario and the DPCs and STADs loading scenario for the alternative with a 6 kW thermal limit and a 2048 start date, and for the alternatives with a 10 kW thermal limit and 2036 and 2048 start dates. The alternatives with disposal of UNF in both DPCs and STADs did not require additional storage, regardless of the repository acceptance rate, as compared to the reference repackaging case. In comparison to the reference repackaging case, alternatives with the 18 kW emplacement thermal limit required little to no additional emplacement time, regardless of the repository start time, the fuel loading scenario, or the repository acceptance rate. Alternatives with the 10 kW emplacement thermal limit and the DPCs and STADs fuel loading scenario required some additional emplacement time. The most significant decrease in additional emplacement time occurred in the alternative with the 6 kW thermal limit and the 2036 repository starting date. The average fuel age at emplacement ranges from 46 to 88 years. The maximum fuel age at emplacement ranges from 81 to 146 years. The difference in the average and maximum age of fuel at emplacement between the DPC-only and the DPCs and STADs fuel loading scenarios becomes less significant as the repository thermal limit increases and as the repository start date increases. In general, the role of STADs is to store young (30 year or younger) high burnup (45 GWD/MTU or higher) fuel. Recommendations for future study include detailed evaluation of the feasible alternatives with regard to the costs and factors not considered in this analysis, such as worker dose, dose to members of the public, and economic benefits to host entities. It is also recommended to conduct an additional analysis to evaluate the assumption regarding the transportability and disposability of DPCs for the next iteration of the direct disposal of DPCs study.

Kalinina, Elena A.

2014-06-03T23:59:59.000Z

396

A Preliminary Cost Study of the Dual Mode Inverter Controller  

SciTech Connect (OSTI)

In 1998, the Power Electronics and Electric Machinery Research Center (PEEMRC) at the Oak Ridge National Laboratory (ORNL) started a program to investigate alternate field weakening schemes for permanent magnet (PM) motors. The adjective ''alternate'' was used because at that time, outside research emphasis was on motors with interior-mounted PMs (IPMs). The PEEMRC emphasis was placed on motors with surface-mounted PMs (SPMs) because of the relative ease of manufacturing SPM motors compared with the IPM motors. Today the PEEMRC is continuing research on SPMs while examining the IPMs that have been developed by industry. Out of this task--the goal of which was to find ways to drive PM motors that inherently have low inductance at high speeds where their back-emf exceeds the supply voltage--ORNL developed and demonstrated the dual mode inverter control (DMIC) [1,2] method of field weakening for SPM motors. The predecessor of DMIC is conventional phase advance (CPA), which was developed by UQM Technologies, Inc. [3]. Fig. 1 shows the three sets of anti-parallel thyristors in the dashed box that comprise the DMIC. If one removes the dashed box by shorting each set of anti-parallel thyristors, the configuration becomes a conventional full bridge inverter on the left driving a three phase motor on the right. CPA may be used to drive this configuration ORNL's initial analyses of CPA and DMIC were based on driving motors with trapezoidal back-emfs [4-6], obtained using double layer lapped stator windings with one slot per pole per phase. A PM motor with a sinusoidal back-emf obtained with two poles per slot per phase has been analyzed under DMIC operation as a University of Tennessee-Knoxville (UTK) doctoral dissertation [7]. In the process of this research, ORNL has completed an analysis that explains and quantifies the role of inductance in these methods of control. The Appendix includes information on the equations for the three components of phase inductance, L{sub gap}, L{sub slot}, and L{sub endturns}. PM motors inherently have a lower inductance because of the increase in effective air gap caused by the magnet, which is in the denominator of the equation for L{sub gap}. L{sub gap} accounts for about half of the phase inductance. Because of the low inductance, there is a propensity for currents to exceed the motor's rated value. DMIC solves this problem for low-inductance PM motors and, in addition, provides a number of safety features that protect against uncontrolled generator mode operation [8,9]; however, the DMIC topology adds a pair of anti-parallel thyristors in each of the three phases, thereby introducing additional silicon costs as well as additional voltage drops during operation. It poses the tradeoff question; under what conditions can the beneficial features of DMIC offset its additional silicon cost and voltage drop losses? The purpose of this report is to address the tradeoff question. Sections of the report will: (1) review the role of self-inductance in performance and control of PM motors, (2) discuss the bounding inductances for motors with trapezoidal back-emfs under CPA control, (3) discuss the bounding inductances for trapezoidal back-emfs under DMIC, (4) discuss the bounding inductances for the PM synchronous motor (PMSM), (5) present the analysis showing how DMIC minimizes current in PMSMs, (6) present the results of a cost study conducted for two motors driven using a CPA inverter and for two motors driven using DMIC, (7) discuss estimating life cycle cost benefits, and (8) present conclusions.

McKeever, J.W.

2005-01-28T23:59:59.000Z

397

Phase-field modeling of corrosion kinetics under dual-oxidants This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network [OSTI]

Phase-field modeling of corrosion kinetics under dual-oxidants This article has been downloaded-field modeling of corrosion kinetics under dual-oxidants You-Hai Wen1 , Long-Qing Chen2 and Jeffrey A Hawk1 1 is proposed to simulate corrosion kinetics under a dual- oxidant atmosphere. It will be demonstrated

Chen, Long-Qing

398

A Sensor-Based Dual-Arm Tele-Robotic System Daniel Kruse, Student Member, IEEE, John T. Wen, Fellow, IEEE, and Richard J. Radke, Senior Member, IEEE  

E-Print Network [OSTI]

1 A Sensor-Based Dual-Arm Tele-Robotic System Daniel Kruse, Student Member, IEEE, John T. Wen coordinated task-based control on a dual-arm industrial robot for the gen- eral tasks of visual servoing. The specific experimental testbed involves a 15 degree-of- freedom dual-arm industrial robot with each wrist

Radke, Rich

399

Abstract--A widespread application of impedance control in dual-arm robotic systems is still a challenging problem. One of limitations is  

E-Print Network [OSTI]

Abstract-- A widespread application of impedance control in dual- arm robotic systems is still provides efficient and flexible algorithms and tools which considerably facilitate future dual-arm robot and users for this new class of robotic systems. The main advantages and benefits of dual arm-robots over

400

1D to 1D Tunneling in a Dual Electron Waveguide Device C. C. Euaster, J. A. del Alamo,M. R. Mellocht, M. J. Rooks*  

E-Print Network [OSTI]

1D to 1D Tunneling in a Dual Electron Waveguide Device C. C. Euaster, J. A. del Alamo,M. R on a dual electron waveguide device. In this device, two closely spaced 1D channels are electrostati- cally have fabricated a variety of dual electron waveguide devices with different lengths L and widths W

del Alamo, Jes√ļs A.

Note: This page contains sample records for the topic "dual overhead cam" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

A study of localisation in dual phase high-strength steels under dynamic loading using digital image correlation and FE analysis  

E-Print Network [OSTI]

1 A study of localisation in dual phase high-strength steels under dynamic loading using digital conducted on dual-phase high-strength steel in a split-Hopkinson tension bar at a strain-rate in the range-speed photography, localisation, dual-phase high strength-steel, split- Hopkinson bar, photomechanics, elasto

402

A study of localisation in dual phase high-strength steels under dynamic loading using digital image correlation and FE analysis  

E-Print Network [OSTI]

1 A study of localisation in dual phase high-strength steels under dynamic loading using digital of an elasto-viscoplastic constitutive model for the dual-phase steel is provided in terms of its ability for the shell element analysis. Keywords: high-speed photography, localisation, dual-phase high strength-steel

Paris-Sud XI, Université de

403

18th World Conference on Nondestructive Testing, 16-20 April 2012, Durban, South Africa Multidomain modelling of the magneto-mechanical behaviour of dual-  

E-Print Network [OSTI]

modelling of the magneto-mechanical behaviour of dual- phase steels F MBALLA-MBALLA 1,2 , O HUBERT 1. The dual-phase is a steel composed of ferrite and martensite phases. Each phase can be considered of high performance steels as dual phase (DP) steels has been observed. Steel production involves several

Paris-Sud XI, Université de

404

Peak Demand Reduction with Dual-Source Heat Pumps Using Municipal Water  

E-Print Network [OSTI]

The objective of this project was to examine a dual-source (air and/or water-coupled) heat pump concept which would reduce or eliminate the need for supplemental electrical resistance heating (strip heaters). The project examined two system options...

Morehouse, J. H.; Khan, J. A.; Connor, L. N.; Pal, D.

405

Making the Right Moves: Guiding Alpha-Expansion using Local Primal-Dual Gaps  

E-Print Network [OSTI]

Making the Right Moves: Guiding Alpha-Expansion using Local Primal-Dual Gaps Dhruv Batra Toyota@microsoft.com Abstract This paper presents a new adaptive graph-cut based move-making algorithm for energy minimization-space to search over. At each step, it tries to greedily find the move-space that will lead to biggest de- crease

Rajamani, Sriram K.

406

Mechanism of quasi-phase-matching in a dual-gas multijet array  

E-Print Network [OSTI]

Quasi-phase-matching in a dual gas (Ar-H2) multijet array has recently been demonstrated to be a promising way to enhance the yield of high-order harmonics (HH). Here, we investigate the HH produced individually from these ...

Wang, Xiaowei; Chini, Michael; Zhang, Qi; Zhao, Kun; Wu, Yi; Telnov, Dmitry A.; Chu, Shih-I; Chang, Zenghu

2012-08-31T23:59:59.000Z

407

Nitrogen sources and cycling in the San Francisco Bay Estuary: A nitrate dual isotopic composition approach  

E-Print Network [OSTI]

as 25.0%) at the Sacramento≠San Joaquin River delta region give rise to a wide range of d18ONO3 valuesNitrogen sources and cycling in the San Francisco Bay Estuary: A nitrate dual isotopic composition18O) within the estuarine system of San Francisco (SF) Bay, California, to explore the utility

Paytan, Adina

408

Dual Phase Li4 Ti5O12ĖTiO2 Nanowire Arrays As Integrated...  

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

Phase Li4 Ti5O12ĖTiO2 Nanowire Arrays As Integrated Anodes For High-rate Lithium-ion Batteries. Dual Phase Li4 Ti5O12ĖTiO2 Nanowire Arrays As Integrated Anodes For...

409

Enhanced vibration energy harvesting using dual-mass systems Xiudong Tang, Lei Zuo n  

E-Print Network [OSTI]

of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794, USA a r t i c l eEnhanced vibration energy harvesting using dual-mass systems Xiudong Tang, Lei Zuo n Department-mass vibration energy harvester, where two masses are connected in series with the energy transducer and spring

Zuo, Lei

410

Gender ideology: impact on dual-career couples' role strain, marital satisfaction, and life satisfaction  

E-Print Network [OSTI]

............................................ 122 VITA.................................................. 126 xiii LIST OF TABLES TABLE Page 1 Sample Demographics........................... 36 2 Descriptive Statistics for Continuous Variable Measures.... 2 implementing family-friendly work policies such as flextime (Galinsky et al., 1996). This lack of family-oriented policies takes an important social, psychological, and physical toll on millions of dual-career couples. One of the most...

King, Jennifer Jean

2006-04-12T23:59:59.000Z

411

Dual gas and oil dispersions in water: production and stability of foamulsion Anniina Salonen,*a  

E-Print Network [OSTI]

Dual gas and oil dispersions in water: production and stability of foamulsion Anniina Salonen of oil droplets and gas bubbles and show that the oil can have two very different roles, either suppressing foaming or stabilising the foam. We have foamed emulsions made from two different oils (rapeseed

Paris-Sud XI, Universitť de

412

A Dual-Space Feedforward PID Control of Redundantly Actuated Parallel  

E-Print Network [OSTI]

A Dual-Space Feedforward PID Control of Redundantly Actuated Parallel Manipulators with Real applications. This controller consists in a PID in the Cartesian space complied with a feedforward. For comparison purposes, experiments were made with a Cartesian PID until 20G. Experimental results show

Paris-Sud XI, Université de

413

DUAL-DEGREE PHYSICS/ENGINEERING AT AUBURN Department Course Course Name Credits Required Term  

E-Print Network [OSTI]

engineering, industrial engineering, materials engineering, mechanical engineering, textile chemistry, textileDUAL-DEGREE PHYSICS/ENGINEERING AT AUBURN Department Course Course Name Credits Required Term 1 Chemistry 1101/1110 Introductory Chemistry I & Lab 4 *11021120 Introductory Chemistry II & Lab 4

Thaxton, Christopher S.

414

LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators  

E-Print Network [OSTI]

LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators General Description The LM clock timers; multivibrators and high voltage digital logic gates. The LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193

Lanterman, Aaron

415

LM158/LM258/LM358/LM2904 Low Power Dual Operational Amplifiers  

E-Print Network [OSTI]

LM158/LM258/LM358/LM2904 Low Power Dual Operational Amplifiers General Description The LM158 series systems. For example, the LM158 series can be directly operated off of the standard +5V power supply without requiring the additional ¬Ī15V power supplies. The LM358 and LM2904 are available in a chip sized

Lanterman, Aaron

416

A dual approach to tuning the porosity of porous organic polymers: controlling the porogen size and  

E-Print Network [OSTI]

. Consequently, the majority of POPs are interpenetrating networks with rela- tively low total pore volumesA dual approach to tuning the porosity of porous organic polymers: controlling the porogen size. Weston, Omar K. Farha,* Joseph T. Hupp* and SonBinh T. Nguyen* Porous organic polymers (POPs

417

Dual Low Voltage IC Based High and Low Side Yan Yin, Regan Zane  

E-Print Network [OSTI]

drivers are required in most switching power converters to provide on/off control of both ground referenced and floating switches. The drivers are required to provide sufficient current to the gates to meet and low-side gate drivers; dual low voltage ICs; capacitive coupling; charge pump I. INTRODUCTION High

418

Tip Vortex Field Resolution Using an Adaptive Dual-Mesh Computational Nathan Hariharan  

E-Print Network [OSTI]

for the aforementioned unsteady, vortical fields. 1. Introduction 1.1 Background Vortical wakes introduce important AMR in an unstructured Euler solver. Potsdam[3] also applied unstructured AMR to wind turbine wake1 Tip Vortex Field Resolution Using an Adaptive Dual-Mesh Computational Paradigm Nathan Hariharan

Steffen, Michael

419

Top hole drilling with dual gradient technology to control shallow hazards  

E-Print Network [OSTI]

3.2 Riserless Dual Gradient Drilling Technology Description .........................36 3.2.1 Kick Detection.............................................................................37 3.2.2 Well Control ?Modified Driller?s Method... ? PRESSURE @ TOP OF KICK GRAPHS ? SET #1..........................140 ix Page APPENDIX F ? PRESSURE @ TOP OF KICK GRAPHS ? SET #2 ..........................159 VITA...

Elieff, Brandee Anastacia Marie

2006-10-30T23:59:59.000Z

420

PRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM  

E-Print Network [OSTI]

PRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM R. Gollmer1 , A. Moller comprising thermal and pumped-storage hydro units a large-scale mixed-integer optimization model is developed aims at the cost optimal scheduling of on/o decisions and output levels for generating units. The power

RŲmisch, Werner

Note: This page contains sample records for the topic "dual overhead cam" 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

Dual Axis Radiographic Hydrodynamic Test Facility mitigation action plan. Annual report for 1998  

SciTech Connect (OSTI)

This Mitigation Action Plan Annual Report (MAPAR) has been prepared as part of implementing the Dual Axis Radiographic Hydrodynamic Test Facility (DARHT) Mitigation Action Plan (MAP) to protect workers, soils, water, and biotic and cultural resources in and around the facility.

Haagenstad, T.

1999-01-15T23:59:59.000Z

422

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1  

E-Print Network [OSTI]

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1 J. Yan,1,2 R. J. Suess,3 T. E photoresponse in gapped bilayer graphene was investigated by optical and transport measurements. A pulse There is growing recognition that graphene has excep- tional potential as a new optoelectronic material, which has

Murphy, Thomas E.

423

Low-Dose Dual-Energy CT for PET Attenuation Correction with Statistical Sinogram Restoration  

E-Print Network [OSTI]

1 Low-Dose Dual-Energy CT for PET Attenuation Correction with Statistical Sinogram Restoration. of Michigan & Univ. of Washington Outline Introduction - PET/CT background - CT-based attenuation correction for PET Conventional sinogram decomposition in DE-CT Statistically motivated sinogram restoration in DE

Fessler, Jeffrey A.

424

Canonical quantization of a minisuperspace model for gravity using self-dual variables  

E-Print Network [OSTI]

The present article summarizes the work of the papers \\cite{1} dealing with the quantization of pure gravity and gravity coupled to a Maxwell field and a cosmological constant in presence of spherical symmetry. The class of models presented is intended as an interesting testing ground for the quantization of full 3+1 gravity. We are working in Ashtekar's self-dual representation.

T. Thiemann

1999-10-04T23:59:59.000Z

425

On the Dual Effect in State-Based Scheduling of Networked Control Systems  

E-Print Network [OSTI]

On the Dual Effect in State-Based Scheduling of Networked Control Systems Chithrupa Ramesh, Henrik with state-based scheduling. In general, this makes the optimal scheduler and controller hard to find. However, by removing past controls from the scheduling criterion, we find that certainty equivalence holds

Johansson, Karl Henrik

426

A Comparative Study of New Barrier Functions for Primal-Dual ...  

E-Print Network [OSTI]

Up till now primal-dual IPMs all use the Newton direction as the search ... in terms of the kernel function and its first and second derivative. .... outer iteration by performing a5k -update, otherwise we enter an inner iteration by computing.

427

IRAN UNDER MONGOL DOMINATION The effectiveness and failings of a dual administrative system  

E-Print Network [OSTI]

IRAN UNDER MONGOL DOMINATION The effectiveness and failings of a dual administrative system Denise, as countries with a long sedentary tradition, such as China and Iran, were made subject to a single people of the steppes for over a century.4 THE CONQUEST OF THE IRANIAN LANDS Iran had suffered other major invasions

Paris-Sud XI, Université de

428

c 2013 IEEE On-Board Dual-Stereo-Vision for Autonomous Quadrotor Navigation  

E-Print Network [OSTI]

and Andreas Zell Abstract-- We present a quadrotor Micro Aerial Vehicle (MAV) capable of autonomous indoorc 2013 IEEE On-Board Dual-Stereo-Vision for Autonomous Quadrotor Navigation Konstantin Schauwecker Aerial Vehicles (MAVs) are becoming increasingly popular in the robotics research community

Zell, Andreas

429

A Comparison of Non-stationary, Type-2 and Dual Surface Fuzzy Control  

E-Print Network [OSTI]

,uxa,jmg]@cs.nott.ac.uk Abstract--Type-1 fuzzy logic has frequently been used in control systems. However this method is sometimes and fuzzy logic to automate system controllers. The underpinning technique of fuzzy logic was originallyA Comparison of Non-stationary, Type-2 and Dual Surface Fuzzy Control Naisan Benatar, Uwe Aickelin

Aickelin, Uwe

430

450 mm dual frequency capacitively coupled plasma sources: Conventional, graded, and segmented electrodes  

E-Print Network [OSTI]

450 mm dual frequency capacitively coupled plasma sources: Conventional, graded, and segmented fabrication will soon transition from 300 to 450 mm at a time when excitation frequencies for capacitively of processing. The increase in diameter to 450 mm is likely to exacerbate these effects, perhaps requiring

Kushner, Mark

431

Comparison of propane and methane performance and emissions in a turbocharged direct injection dual fuel engine  

SciTech Connect (OSTI)

With increasingly restrictive NO x and particulate matter emissions standards, the recent discovery of new natural gas reserves, and the possibility of producing propane efficiently from biomass sources, dual fueling strategies have become more attractive. This paper presents experimental results from dual fuel operation of a four-cylinder turbocharged direct injection (DI) diesel engine with propane or methane (a natural gas surrogate) as the primary fuel and diesel as the ignition source. Experiments were performed with the stock engine control unit at a constant speed of 1800 rpm, and a wide range of brake mean effective pressures (BMEPs) (2.7-11.6 bars) and percent energy substitutions (PESs) of C 3 H 8 and CH 4. Brake thermal efficiencies (BTEs) and emissions (NO x, smoke, total hydrocarbons (THCs), CO, and CO 2) were measured. Maximum PES levels of about 80-95% with CH 4 and 40-92% with C 3 H 8 were achieved. Maximum PES was limited by poor combustion efficiencies and engine misfire at low loads for both C 3 H 8 and CH 4, and the onset of knock above 9 bar BMEP for C 3 H 8. While dual fuel BTEs were lower than straight diesel BTEs at low loads, they approached diesel BTE values at high loads. For dual fuel operation, NO x and smoke reductions (from diesel values) were as high as 66-68% and 97%, respectively, but CO and THC emissions were significantly higher with increasing PES at all engine loads

Gibson, C. M.; Polk, A. C.; Shoemaker, N. T.; Srinivasan, K. K.; Krishnan, S. R.

2011-04-20T23:59:59.000Z

432

SU(3) gauge invariant lattice QCD exploration of the dual superconductor picture in flux tube fusion, in the dual gluon mass, and in the dual Ginzburg-Landau parameters  

E-Print Network [OSTI]

The colour fields, created by a static gluon-quark-antiquark system, are computed in quenched SU(3) lattice QCD, in a $24^3\\times 48$ lattice at $\\beta=6.2$ and $a=0.07261(85)\\,fm$. We compute the hybrid Wilson Loop including the cases when the gluon and the antiquark are superposed, i. e., the quark-antiquark case and when the quark and antiquark are superposed, i. e., the gluon-gluon case. The Casimir scaling is investigated, in the two gluon glueball case the Casimir scaling is consistent with the formation of an adjoint string. Measuring the decay of the tail in the mid section of the flux tube for the two gluon glueball and for the quark-antiquark meson, we determine the penetration length and present a gauge invariant effective dual gluon mass of $0.905\\pm0.163\\,\\text{GeV}$. We also try to determine the coherence length comparing our results with the dual Ginzburg-Landau approach. With the penetration length and the possible coherence length we determine a putative Ginzburg-Landau dimensionless parameter, which is possibly consistent with a type II superconductor picture. These results are obtained at fixed quark-antiquark distance of 0.58 fm.

N. Cardoso; M. Cardoso; P. Bicudo

2012-11-19T23:59:59.000Z

433

Fermi-level shifts in graphene transistors with dual-cut channels scraped by atomic force microscope tips  

SciTech Connect (OSTI)

We investigate the electronic properties of p-type graphene transistors on silicon dioxide with dual-cut channels that were scraped using atomic force microscope tips. In these devices, the current is forced to squeeze into the path between the two cuts rather than flow directly through the graphene sheet. We observe that the gate voltages with minimum current shift toward zero bias as the sizes of the dual-cut regions increase. These phenomena suggest that the Fermi levels in the dual-cut regions are shifted toward the Dirac points after the mechanical scraping process.

Lin, Meng-Yu [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Chen, Yen-Hao [Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Su, Chen-Fung [College of Photonics, National Chiao Tung University, Tainan 71150, Taiwan (China); Chang, Shu-Wei [Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Lee, Si-Chen [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Lin, Shih-Yen, E-mail: shihyen@gate.sinica.edu.tw [Institute of Electronics, National Taiwan University, Taipei 10617, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan (China); Department of Photonics, National Chiao Tung University, Hsinchu 30010, Taiwan (China)

2014-01-13T23:59:59.000Z

434

Quasinormal modes of self-dual warped AdS{sub 3} black hole in topological massive gravity  

SciTech Connect (OSTI)

We consider the scalar, vector and spinor field perturbations in the background of self-dual warped AdS{sub 3} black hole of topological massive gravity. The corresponding exact expressions for quasinormal modes are obtained by analytically solving the perturbation equations and imposing the vanishing Dirichlet boundary condition at asymptotic infinity. It is expected that the quasinormal modes agree with the poles of retarded Green's functions of the CFT dual to self-dual warped AdS{sub 3} black hole. Our results provide a quantitative test of the warped AdS/CFT correspondence.

Li Ran; Ren Jirong [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, Gansu (China); Institute of Theoretical Physics, Lanzhou University, Lanzhou, 730000, Gansu (China)

2011-03-15T23:59:59.000Z

435

Content-adaptive parallax barriers: optimizing dual-layer 3D displays using low-rank light field factorization  

E-Print Network [OSTI]

We optimize automultiscopic displays built by stacking a pair of modified LCD panels. To date, such dual-stacked LCDs have used heuristic parallax barriers for view-dependent imagery: the front LCD shows a fixed array of ...

Lanman, Douglas

436

Adaptive processing of thin structures to augment segmentation of dual-channel structural MRI of the human brain†  

E-Print Network [OSTI]

This thesis presents a method for the segmentation of dual-channel structural magnetic resonance imaging (MRI) volumes of the human brain into four tissue classes. The state-of-the-art FSL FAST segmentation software ...

Withers, James

2010-01-01T23:59:59.000Z

437

Design of Stripline-Fed Dual Polarization Aperture-Coupled Stacked Microstrip Patch Phased Array Antenna for Wideband Application  

E-Print Network [OSTI]

solution for various systems such as traffic control and collision avoidance radar systems. The goal of this work is to design and implement a dual-linear polarization stacked microstrip patch phased array antenna. Single stacked microstrip patch antenna...

Kim, David G.

2010-10-12T23:59:59.000Z

438

Design and characterization of a low cost dual differential proving ring force sensor utilizing Hall-effect sensors  

E-Print Network [OSTI]

A novel dual differential hall-effect based proving ring force sensor has been designed, manufactured, and tested. Strain gauge based force sensors are among the most common methods of measuring static and dynamic forces, ...

Rivest, Christopher W. (Christopher Warren)

2006-01-01T23:59:59.000Z

439

Observation of Joule Heating-Assisted Electromigration Failure Mechanisms for Dual Damascene Cu/SiO? Interconnects  

E-Print Network [OSTI]

Failure mechanisms observed in electromigration (EM) stressed dual damascene Cu/SiO? interconnects trees were studied and simulated. Failure sites with ‚??melt patchí or ‚??craterí are common for test structures in the top ...

Chang, Choon Wai

440

Fatal Void Size Comparisons in Via-Below and Via-Above Cu Dual-Damascene Interconnects  

E-Print Network [OSTI]

The median-times-to-failure (t??ís) for straight dual-damascene via-terminated copper interconnect structures, tested under the same conditions, depend on whether the vias connect down to underlaying leads ...

Choi, Z.-S.

Note: This page contains sample records for the topic "dual overhead cam" 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

Synthesis of ZSM-23/ZSM-22 intergrowth zeolite with a novel dual-template strategy  

SciTech Connect (OSTI)

ZSM-23/ZSM-22 intergrowth zeolite with fixed proportion of 60%ZSM-23/40%ZSM-22 has been synthesized with a novel dual-template strategy. The products were characterized by X-ray diffraction and scanning electron microscopy. Dimethylamine and diethylamine were used together as a dual-template system. The molar ratio of diethylamine to dimethylamine, which was changed with the type of aluminum source, was the key factor for the synthesis of intergrowth zeolites. A molar ratio of diethylamine to dimethylamine of 1:24 could result in an ZSM-23/ZSM-22 intergrowth zeolite if aluminum sulfate was used as aluminum source, whereas a molar ratio of diethylamine to dimethylamine of 1:12 was required to get an ZSM-23/ZSM-22 intergrowth zeolite if sodium metaaluminate was used. Furthermore, fluoride anion could be involved in the process as a crystallization promoter.

Wang, Bingchun, E-mail: wangbc@dicp.ac.cn [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China) [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China); Graduate University of Chinese Academy of Sciences, Beijing 100049 (China); Tian, Zhijian, E-mail: tianz@dicp.ac.cn [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China) [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China); State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China); Li, Peng; Wang, Lei; Xu, Yunpeng; Qu, Wei; Ma, Huaijun; Xu, Zhusheng [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China)] [National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China); Lin, Liwu [State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China)] [State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China)

2009-12-15T23:59:59.000Z

442

Dual-bath electrodeposition of Cu/Ni compositionally modulated multilayers  

SciTech Connect (OSTI)

The electrodeposition of Cu/Ni compositionally modulated multilayers with sublayer thickness in the nanometer range has been carried out. The deposition was conducted under galvanostatic conditions using dual-bath technique. The structure of the multilayers was characterized by scanning electron microscopy, and conventional and high resolution transmission electron microscopy. Cu/Ni multilayers with distinct and continuous sublayers in the range of 100 to < 5 nm can be produced by dual-bath electrodeposition. Cu and Ni sublayers grow epitaxially on top of one another. The local variation in the growth rate of copper leads to a faceted morphology of the multilayers. The extent of this faceting is reduced as the sublayer thickness is decreased. A surface reaction like oxidation during transfer of the substrate does not adversely affect the crystallographic continuity at the interfaces between sublayers. The thin-film formation is discussed based on available growth models.

Haseeb, A.S.M.A.; Celis, J.P.; Roos, J.R. [Katholieke Univ. Leuven de Croylaan (Belgium). Dept. of Metallurgy and Materials Engineering

1994-01-01T23:59:59.000Z

443

Dual Superconductor Picture for Strongly-coupled SU(2) Yang-Mills Theory  

E-Print Network [OSTI]

A new framework that fulfills the dual superconductor picture is proposed for the strongly-coupled Yang-Mills theory. This framework is based on the idea that at the classic level the strong-coupling limit of the theory vacuum behaves as a back hole with regard to colors in the sense of the effective field theory, and the theory variables undergo an ultraviolet/infrared scale separation. We show that at the quantum level the strong-coupled theory vacuum is made up of a Bose-condensed many-body system of magnetic charges. We further check this framework by reproducing the dual Abelian-Higgs model from the Yang-Mills theory and the predicting the vacuum type of the theory which is very near to the border between type-I and type-II superconductors and remarkably consistent with the recent simulations.

Duoje Jia; Yi-shi Duan

2006-05-18T23:59:59.000Z

444

Dual-Readout Calorimetry for High-Quality Energy Measurements. Final Report  

SciTech Connect (OSTI)

This document constitutes the final report on the project Dual-Readout Calorimetry for High-Quality Energy Measurements. The project was carried out by a consortium of US and Italian physicists, led by Dr. Richard Wigmans (Texas tech University). This consortium built several particle detectors and tested these at the European Center for Nuclear Research (CERN) in Geneva, Switzerland. The idea arose to use scintillating crystals as dual-readout calorimeters. Such crystals were of course already known to provide excellent energy resolution for the detection of particles developing electromagnetic (em) showers. The efforts to separate the signals from scintillating crystals into scintillation and Cerenkov components led to four different methods by which this could be accomplished. These methods are based on a) the directionality, b) spectral differences, c) the time structure, and d) the polarization of the signals.

Wigmans, Richard; Nural, Akchurin

2013-09-01T23:59:59.000Z

445

Structure of human dual-specificity phosphatase 27 at 2.38 Ň resolution  

SciTech Connect (OSTI)

There are over 100 genes in the human genome that encode protein tyrosine phosphatases (PTPs) and approximately 60 of these are classified as dual-specificity phosphatases (DUSPs). Although many dual-specificity phosphatases are still not well characterized, novel functions have been discovered for some of them that have led to new insights into a variety of biological processes and the molecular basis for certain diseases. Indeed, as the functions of DUSPs continue to be elucidated, a growing number of them are emerging as potential therapeutic targets for diseases such as cancer, diabetes and inflammatory disorders. Here, the overexpression, purification and structure determination of DUSP27 at 2.38 {angstrom} resolution are presented.

Lountos, George T.; Tropea, Joseph E.; Waugh, David S. (NCI)

2012-03-26T23:59:59.000Z

446

Black hole spectra in holography: consequences for equilibration of dual gauge theories  

E-Print Network [OSTI]

Energy gap in the spectrum of equilibrium states of interacting system, along with ability to continuously excite the system inside this gap, leads to violation of the ergodicity hypothesis. We explore this in the framework of gauge theory/string theory correspondence. We study the spectrum of static black holes in Pilch-Warner geometry. These black holes are holographically dual to equilibrium states of strongly coupled $SU(N)$ ${\\cal N}=2^*$ gauge theory plasma on $S^3$ in the planar limit. We find that there is no energy gap in the black hole spectrum. Thus, there is a priory no obstruction for equilibration of arbitrary low-energy states in the theory via a small black hole gravitational collapse. The latter is contrasted with phenomenological examples of holography with dual four-dimensional CFTs having non-equal central charges in the stress-energy tensor trace anomaly.

Buchel, Alex

2015-01-01T23:59:59.000Z

447

DualTrust: A Distributed Trust Model for Swarm-Based Autonomic Computing Systems  

SciTech Connect (OSTI)

For autonomic computing systems that utilize mobile agents and ant colony algorithms for their sensor layer, trust management is important for the acceptance of the mobile agent sensors and to protect the system from malicious behavior by insiders and entities that have penetrated network defenses. This paper examines the trust relationships, evidence, and decisions in a representative system and finds that by monitoring the trustworthiness of the autonomic managers rather than the swarming sensors, the trust management problem becomes much more scalable and still serves to protect the swarm. We then propose the DualTrust conceptual trust model. By addressing the autonomic managerís bi-directional primary relationships in the ACS architecture, DualTrust is able to monitor the trustworthiness of the autonomic managers, protect the sensor swarm in a scalable manner, and provide global trust awareness for the orchestrating autonomic manager.

Maiden, Wendy M.; Dionysiou, Ioanna; Frincke, Deborah A.; Fink, Glenn A.; Bakken, David E.

2011-02-01T23:59:59.000Z

448

Influence of Agricultural Dual Credit on Student College Readiness Self-Efficacy  

E-Print Network [OSTI]

INFLUENCE OF AGRICULTURAL DUAL CREDIT ON STUDENT COLLEGE READINESS SELF-EFFICACY A Record of Study by ALANNA LEE NEELY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... should consider earning postsecondary degrees and credentials. The Completion Agenda states: This increased focus on college completion (not simply college access) is reflected in, for example, President Obama?s goal for the United States...

Neely, Alanna L.

2013-07-12T23:59:59.000Z

449

Toward large N thermal QCD from dual gravity: The heavy quarkonium potential  

SciTech Connect (OSTI)

We continue our study on the gravity duals for strongly coupled large N QCD with fundamental flavors both at zero and nonzero temperatures. The gravity dual at zero temperature captures the logarithmic runnings of the coupling constants at far IR and the almost conformal, albeit strongly coupled, behavior at the UV. The full UV completion of gauge theory is accomplished in the gravity side by attaching an anti-de Sitter cap to the IR geometry described in our previous work. Attaching such an anti-de Sitter cap is highly nontrivial because it amounts to finding the right interpolating geometry and sources that take us from a gravity solution with nonzero three-form fluxes to another one that has almost vanishing three-form fluxes. In this paper we give a concrete realization of such a scenario, completing the program advocated in our earlier paper. One of the main advantages of having such a background, in addition to providing a dual description of the required gauge theory, is the absence of Landau poles and consequently the UV divergences of the Wilson loops. The potential for the heaviest fundamental quark-antiquark pairs, which are like the heavy quarkonium states in realistic QCD, can be computed and their linear behavior at large separations and zero temperature could be demonstrated. At small separations the expected Coulombic behavior appears to dominate. On the other hand, at nonzero temperatures interesting properties like heavy quarkonium-type suppressions and melting are shown to emerge from our gravity dual. We provide some discussions of the melting temperature and compare our results with the charmonium spectrum and lattice simulations. We argue that, in spite of the large N nature of our construction, certain model-independent predictions can be made.

Mia, Mohammed; Dasgupta, Keshav; Gale, Charles; Jeon, Sangyong [Ernest Rutherford Physics Building, McGill University, 3600 University Street, Montreal Quebec, H3A 2T8 (Canada)

2010-07-15T23:59:59.000Z

450

Development of ammonia-sodium bromide heat pump/dual temperature storage concept. Final report  

SciTech Connect (OSTI)

An effective dual temperature heat pump/storage system can be based on the use of ammoniated complex compounds as the storage medium and heat pump working fluid. This report describes the development of an ammoniated complex system, suitable for dual temperature storage, chill storage and heat pumping, as well as the hardware design required for the heat pump/storage operation. Several storage media modifications, heat exchanger designs, and reaction related parameters were investigated in terms of effective heat pumping, dual temperature storage and chill storage characteristics. The modifications were tested in a subscale prototype and compared to the results of the basic experiments performed in Phase I of this project. The computer model developed in Phase I was refined. The sorption reactions and their thermodynamic properties are described as a function of reaction progress allowing coefficient of performance (COP) predictions at varying building loads. A comparison of this system with state-of-the-art thermal storage systems was performed considering the energy density, operating cost, and the environmental impact reflected in building codes.

Rockenfeller, U.

1986-10-01T23:59:59.000Z

451

EPA's research projects relating to the dual-circuit and Lorenz refrigerator/freezers  

SciTech Connect (OSTI)

The paper discusses EPA research projects relating to the dual-circuit and Lorenz refrigerator/freezers (RFs). EPA is interested in not only phasing out chlorofluorocarbons (CFCs) in RFs, but doing so in a way that will maximize energy efficiency and minimize subsequent impacts on the greenhouse effect. An early decision was made to concentrate on replacing fully halogenated CFCs in RFs during the first year of EPA's research. RFs were chosen because they are small, require small quantities of refrigerants, are relatively easy to modify and test, and are the most energy-consumptive appliances in most U.S. households. In the future, other applications are expected to receive more attention. The first year of EPA's program has concentrated on implementing two alternative configurations of RFs which are believed to have the potential to make RFs more energy efficient: the dual-circuit and the Lorenz RFs. Research has included modeling alternative refrigerants and Non-azeotropic Refrigerant Mixtures (NARMs) in the dual-circuit and Lorenz configurations and experimental testing of modified RFs and refrigeration components in test stands.

Bare, J.C.

1992-01-01T23:59:59.000Z

452

An AdS{sub 3} dual for minimal model CFTs  

SciTech Connect (OSTI)

We propose a duality between the 2d W{sub N} minimal models in the large N't Hooft limit, and a family of higher spin theories on AdS{sub 3}. The 2d conformal field theories (CFTs) can be described as Wess-Zumino-Witten coset models, and include, for N=2, the usual Virasoro unitary series. The dual bulk theory contains, in addition to the massless higher spin fields, two complex scalars (of equal mass). The mass is directly related to the 't Hooft coupling constant of the dual CFT. We give convincing evidence that the spectra of the two theories match precisely for all values of the 't Hooft coupling. We also show that the renormalization group flows in the 2d CFT agree exactly with the usual AdS/CFT prediction of the gravity theory. Our proposal is in many ways analogous to the Klebanov-Polyakov conjecture for an AdS{sub 4} dual for the singlet sector of large N vector models.

Gaberdiel, Matthias R. [School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States); Institut fuer Theoretische Physik, ETH Zurich, CH-8093 Zuerich (Switzerland); Gopakumar, Rajesh [Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad, 211019 (India)

2011-03-15T23:59:59.000Z

453

`Eight years of dual regulation for mixed waste -- where do we go from here?`  

SciTech Connect (OSTI)

Radioactive/hazardous mixed waste (`mixed waste`) has been subject to dual regulation under the Resource Conservation and Recovery Act (`RCRA`) and the Atomic Energy Act (`AEA`) since July, 1986. In these eight years, commercial NRC licensees have established a strong case that dual regulation is unnecessarily burdensome and redundant and that a tailored program combining select elements of RCRA and the AEA is the most appropriate course of regulatory action for these unique materials. Despite sympathetic acknowledgement from regulators that this strategy makes sense, mixed waste remains subject to dual regulation with little prospect for substantial relief in the immediate future. Recognizing that amending the regulatory status quo is a slow and tedious process, the paper will focus on management options available under the current RCRA and AEA programs for removing mixed waste from the most onerous elements of the present regime. This discussion will explore methods available under the existing hazardous waste rules for avoiding the most draconian elements of RCRA`s hazardous waste program, including management options that are exempt from RCRA`s permitting program and treatment options that are available to remove certain mixed wastes from hazardous waste regulation. The paper also will discuss potential options available under the NRC program for removing certain byproducts from the requirement that they be managed at NRC licensed facilities, thus creating new alternatives for off-site treatment and disposal.

Green, D.H. [Piper & Marbury, Washington, DC (United States)

1995-05-01T23:59:59.000Z

454

Differential GPS Measurement of Overhead Conductor Sag: Software Implementation  

E-Print Network [OSTI]

Company; and Mr. Floyd Galvan and Mr. John Schilleci of Entergy - New Orleans. In early stages of the project, Mr. Lance Priez of Entergy supplied needed in- formation. The many useful suggestions of all

455

Evaluation of Instrumentation and Dynamic Thermal Ratings for Overhead Lines  

SciTech Connect (OSTI)

In 2010, a project was initiated through a partnership between the Department of Energy (DOE) and the New York Power Authority (NYPA) to evaluate EPRI?s rating technology and instrumentation that can be used to monitor the thermal states of transmission lines and provide the required real-time data for real-time rating calculations. The project included the installation and maintenance of various instruments at three 230 kV line sites in northern New York. The instruments were monitored, and data collection and rating calculations were performed for about a three year period.

Phillips, A.

2013-01-31T23:59:59.000Z

456

DOE-HDBK-1141-2001; Radiological Assessor Training, Overheads  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgramofContracttoAugust 05, 200913-1 DEPARTMENT OF8-12

457

DOE-HDBK-1141-2001; Radiological Assessor Training, Overheads  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgramofContracttoAugust 05, 200913-1 DEPARTMENT OF8-1213.1

458

Reduce Overhead, Implement Energy Efficiency in Water/Wastewater  

E-Print Network [OSTI]

. Utilize Biogas Generated On-Site - If a facility has the capability to produce biogas of sufficient quantity (approximately 15 cfm of biogas is necessary to operate a 30 kW microturbine), it may be beneficial to utilize this byproduct. Note... Orleans, LA, May 8-11, 2007. the mixing system with one blower, subsequently saving energy. The savings resulting from this improvement is nearly 400,000 kWh. Food Processor ? modification to its phosphorus removal strategy to increase biogas...

Cantwell, J. C.

2007-01-01T23:59:59.000Z

459

Effective Methods in Reducing Communication Overheads in Solving  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLE FRUITYearEffect0/2002 Yun (Helen) He, GHC2002 1

460

Process for whole cell saccharification of lignocelluloses to sugars using a dual bioreactor system  

DOE Patents [OSTI]

The present invention describes a process for saccharification of lignocelluloses to sugars using whole microbial cells, which are enriched from cultures inoculated with paper mill waste water, wood processing waste and soil. A three-member bacterial consortium is selected as a potent microbial inocula and immobilized on inedible plant fibers for biomass saccharification. The present invention further relates the design of a dual bioreactor system, with various biocarriers for enzyme immobilization and repeated use. Sugars are continuously removed eliminating end-product inhibition and consumption by cell.

Lu, Jue (Okemos, MI); Okeke, Benedict (Montgomery, AL)

2012-03-27T23:59:59.000Z

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


461

Dual-frequency terahertz emission from splitting filaments induced by lens tilting in air  

SciTech Connect (OSTI)

Dual-frequency terahertz radiation from air-plasma filaments produced with two-color lasers in air has been demonstrated experimentally. When a focusing lens is tilted for a few degrees, it is shown that the laser filament evolves from a single one to two sub-filaments. Two independent terahertz sources emitted from the sub-filaments with different frequencies and polarizations are identified, where the frequency of terahertz waves from the trailing sub-filament is higher than that from the leading sub-filament.

Zhang, Zhelin; Chen, Yanping, E-mail: yanping.chen@sjtu.edu.cn; Yang, Liu; Yuan, Xiaohui; Liu, Feng; Chen, Min; Xu, Jianqiu; Zhang, Jie [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Sheng, Zhengming [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG (United Kingdom)

2014-09-08T23:59:59.000Z

462

Gravity Dual for Reggeon Field Theory and Non-linear Quantum Finance  

E-Print Network [OSTI]

We study scale invariant but not necessarily conformal invariant deformations of non-relativistic conformal field theories from the dual gravity viewpoint. We present the corresponding metric that solves the Einstein equation coupled with a massive vector field. We find that, within the class of metric we study, when we assume the Galilean invariance, the scale invariant deformation always preserves the non-relativistic conformal invariance. We discuss applications to scaling regime of Reggeon field theory and non-linear quantum finance. These theories possess scale invariance but may or may not break the conformal invariance, depending on the underlying symmetry assumptions.

Yu Nakayama

2009-06-23T23:59:59.000Z

463

Knock limitations of methane-air mixtures in a turbocharged dual-fuel engine  

SciTech Connect (OSTI)

Knock limitations are investigated using natural gas, with diesel pilot ignition, as a fuel for the 3406 DI-TA Caterpillar diesel engine. Thermodynamic properties at TDC are generated by computer and compared with experimental results. Exhaust emissions are analyzed. A comparison is made of dual-fuel operation relative to diesel. Observations are made to determine the onset of knock. The onset of knock is characterized as a function of engine speed, load, inlet manifold temperature, and air-fuel ratio (A/F). The conditions at the inset of knock are determined using cylinder pressure data. The most efficient operating range is determined with knock avoidance as a prime parameter.

Song, Y.K.; Acker, G.H.; Schaetzle, W.J.; Brett, C.E.

1987-01-01T23:59:59.000Z

464

A test for market power exertion in the credit card industry with the dual solow residual  

E-Print Network [OSTI]

the causes, given the effect (X), equal non-zero. Y ~X ~Z Figure 3. 2: Causal inverted fork The common effects do not screen off associations between the joint causes. Directed acyclic graphs illustrate conditional independence as in n Pr(xi, xn xn... successfully. 20 Roeger's derivation, the dual residual under imperfect competition is developed from a unit cost function that presumes constant returns to scale. Equation (9) illustrates the functional form. (9) G(Wtt. Wrt)Yt C(Wtt, Wrt, Y?Et) = where...

Meurisse, Mark P

2012-06-07T23:59:59.000Z

465

Dual Superconductor Scenario of Confinement: A Systematic Study of Gribov Copy Effects  

E-Print Network [OSTI]

We perform a study of the effects from maximal abelian gauge Gribov copies in the context of the dual superconductor scenario of confinement, on the basis of a novel approach for estimation of systematic uncertainties from incomplete gauge fixing. We present numerical results, in SU(2) lattice gauge theory, using the overrelaxed simulated annealing gauge fixing algorithm. We find abelian and non-abelian string tensions to differ significantly, their ratio being 0.92(4) at BETA = 2.5115. An approximate factorization of the abelian potential into monopole and photon contributions has been confirmed, the former giving rise to the abelian string tension.

G. S. Bali; V. Bornyakov; M. Mueller Preussker; K. Schilling

1996-03-18T23:59:59.000Z

466

Dual initiation strip charge apparatus and methods for making and implementing the same  

DOE Patents [OSTI]

A Dual Initiation Strip Charge (DISC) apparatus is initiated by a single initiation source and detonates a strip of explosive charge at two separate contacts. The reflection of explosively induced stresses meet and create a fracture and breach a target along a generally single fracture contour and produce generally fragment-free scattering and no spallation. Methods for making and implementing a DISC apparatus provide numerous advantages over previous methods of creating explosive charges by utilizing steps for rapid prototyping; by implementing efficient steps and designs for metering consistent, repeatable, and controlled amount of high explosive; and by utilizing readily available materials.

Jakaboski, Juan-Carlos (Albuquerque, NM); Todd,; Steven N. (Rio Rancho, NM); Polisar, Stephen (Albuquerque, NM); Hughs, Chance (Tijeras, NM)

2011-03-22T23:59:59.000Z

467

Chemical Potential in the Gravity Dual of a 2+1 Dimensional System  

E-Print Network [OSTI]

We study probe D5 branes in D3 brane AdS_5 and AdS_5-Schwarzschild backgrounds as a prototype dual description of strongly coupled 2+1 dimensional quasi-particles. We introduce a chemical potential through the U(1)_R symmetry group, U(1) baryon number and a U(1) of isospin in the multi-flavour case. We find the appropriate D5 embeddings in each case - the embeddings do not exhibit the spontaneous symmetry breaking that would be needed for a superconductor. The isospin chemical potential does induce the condensation of charged meson states.

Nick Evans; Ed Threlfall

2009-02-16T23:59:59.000Z

468

Final Technical Report - Integrated Hydrogeophysical and Hydrogeologic Driven Parameter Upscaling for Dual-Domain Transport Modeling  

SciTech Connect (OSTI)

The three major components of this research were: 1. Application of minimally invasive, cost effective hydrogeophysical techniques (surface and borehole), to generate fine scale (~1m or less) 3D estimates of subsurface heterogeneity. Heterogeneity is defined as spatial variability in hydraulic conductivity and/or hydrolithologic zones. 2. Integration of the fine scale characterization of hydrogeologic parameters with the hydrogeologic facies to upscale the finer scale assessment of heterogeneity to field scale. 3. Determination of the relationship between dual-domain parameters and practical characterization data.

Shafer, John M

2012-11-05T23:59:59.000Z

469

Dual-etalon cavity ring-down frequency-comb spectroscopy with broad band light source  

DOE Patents [OSTI]

In an embodiment, a dual-etalon cavity-ring-down frequency-comb spectrometer system is described. A broad band light source is split into two beams. One beam travels through a first etalon and a sample under test, while the other beam travels through a second etalon, and the two beams are recombined onto a single detector. If the free spectral ranges ("FSR") of the two etalons are not identical, the interference pattern at the detector will consist of a series of beat frequencies. By monitoring these beat frequencies, optical frequencies where light is absorbed may be determined.

Chandler, David W; Strecker, Kevin E

2014-04-01T23:59:59.000Z

470

Low power RF CMOS phase-shifting dual modulus (16/17) prescaler  

E-Print Network [OSTI]

speed dual modulus prescalers consume a considerable portion of the power budget of the transceiver. The Conventional Synchronous Prescaler %3/4 MF G2 Vo D Q FF1 Q' D Q FF2 D Q FF3 Q' D Q FF4 Q' CII& CII& CII& CII& Vin MC Figure 4... ratio of 16. When MC is low, the synchronous circuit divides by 3 or 4 depending on whether MF is low or high respectively. The feedback from the ripple counter is set up such that MF is low only when FF3 and FF4 are in the state 11. For the other 3...

Duggal, Abhishek

2000-01-01T23:59:59.000Z

471

Dual spatial maps of transcript and protein abundance in the mouse brain. |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesDataTranslocationDiurnalCommittee Draftfor $1.14EnergyEMSL Dual

472

Nitrogen-sensitized dual phase titanate/titania for visible-light driven phenol degradation  

SciTech Connect (OSTI)

A dual-phase material (DP-160) comprising hydrated titanate (H{sub 2}Ti{sub 3}O{sub 7}{center_dot}xH{sub 2}O) and anatase (TiO{sub 2}) was synthesized in a low-temperature one-pot process in the presence of triethylamine (TEA) as the N-source. The unique structure exhibits strong visible light absorption. The chromophore is linked to Ti-N bonds derived from both surface sensitization and sub-surface (bulk) doping. From transmission electron microscope (TEM) and textural studies by N{sub 2} physisorption, the composite exists as mesoporous particles with a grain size of {approx}20 nm and mean pore diameter of 3.5 nm, responsible for the high surface area ({approx}180 m{sup 2}/g). DP-160 demonstrated photocatalytic activity in the degradation of phenol under visible light ({lambda}>420 nm). The activity of the composite was further enhanced by a small addition (0.001 M) of H{sub 2}O{sub 2}, which also gave rise to some visible light activity in the control samples. This effect is believed to be associated with the surface peroxo-titanate complex. GC-MS analyses showed that the intermediate products of phenol degradation induced by visible light irradiation of DP-160 did not differ from those obtained by UV (band-gap) irradiation of TiO{sub 2}. The overall performance of the composite is attributed to efficient excitation via inter-band states (due to N-doping), surface sensitization, improved adsorptive properties of aromatic compounds due to the N-carbonaceous overlayer, and the presence of heterojunctions that are known to promote directional charge transfer in other mixed-phase titanias like Degussa P25. - graphical abstract: Nitrogen-sensitized dual phase titanate/titania photocatalyst showing extended visible light absorption and efficient photocatalytic degradation of phenol. Highlights: Black-Right-Pointing-Pointer Low temperature one-pot synthesis of visible light active dual phase photocatalyst. Black-Right-Pointing-Pointer The dual phase consists of nanoscale titanate and anatase titania phases. Black-Right-Pointing-Pointer The photocatalyst displays high activity in degrading phenol under visible light. Black-Right-Pointing-Pointer Mechanisms for the sensitization to visible light are considered.

Cheng, Yu Hua; Subramaniam, Vishnu P.; Gong, Dangguo; Tang, Yuxin [School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)] [School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore); Highfield, James, E-mail: James_Highfield@ices.a-star.edu.sg [Institute of Chemical and Engineering Sciences 1 Pesek Road, Jurong Island, Singapore 627833 (Singapore)] [Institute of Chemical and Engineering Sciences 1 Pesek Road, Jurong Island, Singapore 627833 (Singapore); Pehkonen, Simo O. [Chemical Engineering Program, Masdar Institute of Science and Technology, PO Box 54224, Abu Dhabi (United Arab Emirates)] [Chemical Engineering Program, Masdar Institute of Science and Technology, PO Box 54224, Abu Dhabi (United Arab Emirates); Pichat, Pierre [Photocatalyse et Environnement, CNRS/Ecole Centrale de Lyon (STMS), 69134 Ecully Cedex (France)] [Photocatalyse et Environnement, CNRS/Ecole Centrale de Lyon (STMS), 69134 Ecully Cedex (France); Schreyer, Martin K. [Institute of Chemical and Engineering Sciences 1 Pesek Road, Jurong Island, Singapore 627833 (Singapore)] [Institute of Chemical and Engineering Sciences 1 Pesek Road, Jurong Island, Singapore 627833 (Singapore); Chen, Zhong, E-mail: aszchen@ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)] [School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)

2012-12-15T23:59:59.000Z

473

The dual axis radiographic hydrodynamic test (DARHT) facility personnel safety system (PSS) control system  

SciTech Connect (OSTI)

The mission of the Dual Axis Radiograph Hydrodynamic Test (DARHT) Facility is to conduct experiments on dynamic events of extremely dense materials. The PSS control system is designed specifically to prevent personnel from becoming exposed to radiation and explosive hazards during machine operations and/or the firing site operation. This paper will outline the Radiation Safety System (RSS) and the High Explosive Safety System (HESS) which are computer-controlled sets of positive interlocks, warning devices, and other exclusion mechanisms that together form the PSS.

Jacquez, Edward B [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

474

Dual Loop Parallel/Series Waste Heat Recovery System | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA andDriving Innovation at theDryDual Loop

475

Dual-mode self-validating resistance/Johnson noise thermometer system  

DOE Patents [OSTI]

A dual-mode Johnson noise and DC resistance thermometer capable of use in control systems where prompt indications of temperature changes and long term accuracy are needed. A resistance-inductance-capacitance (RLC) tuned circuit produces a continuous voltage signal for Johnson noise temperature measurement. The RLC circuit provides a mean-squared noise voltage that depends only on the capacitance used and the temperature of the sensor. The sensor has four leads for simultaneous coupling to a noise signal processor and to a DC resistance signal processor.

Shepard, Robert L. (Oak Ridge, TN); Blalock, Theron V. (Knoxville, TN); Roberts, Michael J. (Knoxville, TN)

1993-01-01T23:59:59.000Z

476

High strength, low carbon, dual phase steel rods and wires and process for making same  

DOE Patents [OSTI]

A high strength, high ductility, low carbon, dual phase steel wire, bar or rod and process for making the same is provided. The steel wire, bar or rod is produced by cold drawing to the desired diameter in a single multipass operation a low carbon steel composition characterized by a duplex microstructure consisting essentially of a strong second phase dispersed in a soft ferrite matrix with a microstructure and morphology having sufficient cold formability to allow reductions in cross-sectional area of up to about 99.9%. Tensile strengths of at least 120 ksi to over 400 ksi may be obtained.

Thomas, Gareth (Berkeley, CA); Nakagawa, Alvin H. (Campbell, CA)

1986-01-01T23:59:59.000Z

477

CAMS Center for Accelerator Mass Spectrometry  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformation InExplosion Monitoring:Home| Visitors| Education|About NationalEnergyWhy the

478

Microsoft Word - hoti_2014_cam.docx  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fundProject8 -3 Subject: TridentSummary:23: Segregated nature

479

Plasma characteristics of single- and dual-electrode ion source systems utilized in low-energy ion extraction  

SciTech Connect (OSTI)

Discharge characteristics in the upstream as well as in the downstream regions of a 50-eV positive ion beam were measured along the beam axis. Single- and dual-electrode configurations made of 0.1-mm diameter tungsten wires were tested. By varying the upstream discharge parameters, the shape of the sheath edge around the extractors, which can either be ďplanarĒ or ďcylindrical,Ē can be controlled. The sheath eventually affected the simultaneous extraction of ions and neutralizing electrons. The dual-electrode configuration at the lower discharge current, revealed a homogeneous discharge downstream. At this condition, the edge of the sheath can be inferred to be ďplanarĒ which allowed the uniform extraction and propagation of low-energy ions at longer distances. The dual-electrode configuration was capable of transmitting low-energy ions up to 70 mm downstream.

Vasquez, M. R., E-mail: mrvasquez@upd.edu.ph [Department of Mining, Metallurgical, and Materials Engineering, College of Engineering, University of the Philippines, Diliman, Quezon City 1101 (Philippines); Tokumura, S.; Kasuya, T.; Wada, M. [Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)] [Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)

2014-02-15T23:59:59.000Z

480

Welding Induced Alignment Distortion in Dual-in-Line LD Packages  

SciTech Connect (OSTI)

The tolerance for the movement of a single mode fiber relative to the laser is extremely tight, a submicron movement can often lead to a significant misalignment and thus the reduction in the power coupled into the fiber. Among various fiber pigtailing assembly technologies, pulsed laser welding is the method with submicron accuracy and is most conducive to automation. However, the melting-solidification process during laser welding can often distort the pre-achieved fiber-optic alignment. This Welding-Induced-Alignment-Distortion (WIAD) is a serious concern and significantly affects the yield for single mode fiber pigtailing to a semiconductor laser. In this paper, effect of laser welding sequence on WIAD in a dual-in-line packager is numerically investigated by means of Finite Element Method (FEM). Optimal welding sequence may minimize WIAD in dual-in-line package. Additionally, unsymmetrical space between fiber and U-channel induced by laser welding of U-channelĖto-plate in DIP LD packages is found to have obvious effect on WIAD.

Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.; Shi, Frank G.

2007-11-11T23:59:59.000Z

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481

Multicanonical analysis of the plaquette-only gonihedric Ising model and its dual  

E-Print Network [OSTI]

The three-dimensional purely plaquette gonihedric Ising model and its dual are investigated to resolve inconsistencies in the literature for the values of the inverse transition temperature of the very strong temperature-driven first-order phase transition that is apparent in the system. Multicanonical simulations of this model allow us to measure system configurations that are suppressed by more than 60 orders of magnitude compared to probable states. With the resulting high-precision data, we find excellent agreement with our recently proposed nonstandard finite-size scaling laws for models with a macroscopic degeneracy of the low-temperature phase by challenging the prefactors numerically. We find an overall consistent inverse transition temperature of 0.551334(8) from the simulations of the original model both with periodic and fixed boundary conditions, and the dual model with periodic boundary conditions. For the original model with periodic boundary conditions, we obtain the first reliable estimate of the interface tension, 0.12037(18), using the statistics of suppressed configurations.

Marco Mueller; Desmond A. Johnston; Wolfhard Janke

2014-07-27T23:59:59.000Z

482

EPA's research projects relating to the dual-circuit and Lorenz refrigerator/freezers  

SciTech Connect (OSTI)

At a meeting in February 1989, EPA presented to several research universities, national laboratories, and refrigerator/freezer (RF) manufacturers the Agency's desire to replace CFC-12 as a refrigerant in the RF vapor compression cycle and increase RF energy efficiency. EPA recognized that, while eliminating CFCs, energy benefits could be gained by further product development (e.g., improving compressor efficiency or heat transfer surface areas). The largest cycle energy gains, however, were expected to be a result of completely different vapor compression configuration. Two new vapor compression configurations were suggested by the participants - the Lorenz design and the dual-circuit design. A decision was made to construct and test modified RFs as proof that the advanced refrigerants and cycles could achieve energy gains. An RF computer model has been updated and expanded which can model both the Lorenz and dual-circuit RF. Modified RF testing and component testing in test stands is being performed to determine the increased energy performance of these configurations.

Bare, J.C. (Environmental Protection Agency, Research Triangle Park, NC (United States))

1992-01-01T23:59:59.000Z

483

Bag model of hadrons, dual QCD thermodynamics and Quark-Gluon Plasma  

E-Print Network [OSTI]

Using the grand canonical ensemble formulation of a multi-particle statistical system, the thermodynamical description of the dual QCD has been presented in terms of the bag model of hadrons and analyzed for the quark-gluon plasma phase of hadronic matter. The dual QCD bag construction has been shown to lead to the radial pressure on the bag surface in terms of the vector glueball masses of the magnetically condensed QCD vacuum. Constructing the grand canonical partition function to deal with the quark-gluon plasma phase of the non-strange hadrons, the energy density and the plasma pressure have been derived and used to understand the dynamics of the associated phase transition. The critical temperature for QGP-hadron phase transition has been derived and numerically estimated by using various thermodynamic considerations. A comparison of the values of the critical temperatures for QGP-hadron phase transition with those obtained for the deconfinement-phase transition, has been shown to lead to the relaxation ...

Chandola, H C; Dehnen, H

2015-01-01T23:59:59.000Z

484

Dual Antiplatelet Regime Versus Acetyl-acetic Acid for Carotid Artery Stenting  

SciTech Connect (OSTI)

Carotid artery stenting has been proposed as an option treatment of carotid artery stenosis. The aim of this single-institution study is to compare the dual-antiplatelet treatment and heparin combined with acetyl-acetic acid, in patients who underwent carotid artery stenting. We compared 2 groups of 50 patents each who underwent carotid artery stenting for primary atherosclerotic disease. Group A received heparin for 24 h combined with 325 mg acetyl-acetic acid and group B received 250 mg ticlopidine twice a day combined with 325 mg acetyl-acetic acid. Outcome measurements included 30-day bleeding and neurological complications and 30-day thrombosis/occlusion rates. The neurological complications were 16% in group A and 2% in group B (p < 0.05). Bleeding complications occurred in 4% in group A and 2% in group B (p > 0.05). The 30-day thrombosis/occlusion rate was 2% in group A and 0% in group B (p > 0.05). Dual antiplatelet treatment is recommended in all patients undergoing carotid artery stenting.

Dalainas, Ilias, E-mail: hdlns@freemail.gr; Nano, Giovanni; Bianchi, Paolo; Stegher, Silvia; Malacrida, Giovanni; Tealdi, Domenico G. [University of Milan, Istituto Policlinico San Donato, 1st Unit of Vascular Surgery (Italy)

2006-08-15T23:59:59.000Z

485

Page 1 | B.A. in Special Education (General Curriculum) and Elementary Education (K-6) Dual Major | Academic Plan of Study  

E-Print Network [OSTI]

| Academic Plan of Study Updated May 2014 B.A. in Special Education (General Curriculum) and ElementaryPage 1 | B.A. in Special Education (General Curriculum) and Elementary Education (K-6) Dual Major Education (K-6) Dual Program Academic Plan of Study College of Education Department of Special Education

Raja, Anita

486

Precision Dual-Aquifer Dewatering at a Low Level Radiological Cleanup in New Jersey  

SciTech Connect (OSTI)

Cleanup of low-level radioactive wastes at the Wayne Interim Storage Site (WISS), Wayne, New Jersey during the period October, 2000 through November, 2001 required the design, installation and operation of a dual-aquifer dewatering system to support excavation of contaminated soils. Waste disposal pits from a former rare-earth processing facility at the WISS had been in contact with the water table aquifer, resulting in moderate levels of radionuclides being present in the upper aquifer groundwater. An uncontaminated artesian aquifer underlies the water table aquifer, and is a localized drinking water supply source. The lower aquifer, confined by a silty clay unit, is flowing artesian and exhibits potentiometric heads of up to 4.5 meters above grade. This high potentiometric head presented a strong possibility that unloading due to excavation would result in a ''blowout'', particularly in areas where the confining unit was < 1 meter thick. Excavation of contaminated materials w as required down to the surface of the confining unit, potentially resulting in an artesian aquifer head of greater than 8 meters above the excavation surface. Consequently, it was determined that a dual-aquifer dewatering system would be required to permit excavation of contaminated material, with the water table aquifer dewatered to facilitate excavation, and the deep aquifer depressurized to prevent a ''blowout''. An additional concern was the potential for vertical migration of contamination present in the water table aquifer that could result from a vertical gradient reversal caused by excessive pumping in the confined system. With these considerations in mind, a conceptual dewatering plan was developed with three major goals: (1) dewater the water table aquifer to control radionuclide migration and allow excavation to proceed; (2) depressurize the lower, artesian aquifer to reduce the potential for a ''blowout''; and (3) develop a precise dewatering level control mechanism to insure a vertical gradient reversal did not result in cross-contamination. The plan was executed through a hydrogeologic investigation culminating with the design and implementation of a complex, multi-phased dual-aquifer dewatering system equipped with a state of the art monitoring network.

Gosnell, A. S.; Langman, J. W. Jr.; Zahl, H. A.; Miller, D. M.

2002-02-27T23:59:59.000Z

487

Page 1 of 5 MASTERS OF EDUCATION STEM OSU-INDIA DUAL-DEGREE PROGRAM 2014-2016  

E-Print Network [OSTI]

) and the Aligarh Muslim University (AMU) by the U.S.-India Education Foundation (USIEF) under the Obama-Singh 21st under the Obama-Singh Award for a Dual-Degree program between the Ohio State University and the Aligarh Muslim University (AMU) to train STEM faculty in India at the university level for education and research

Pradhan, Anil

488

In pancreatic carcinoma, dual EGFR/HER2 targeting with cetuximab/trastuzumab is more effective than treatment with  

E-Print Network [OSTI]

therapies were assessed in nude mice xenografted with the human pancreatic carcinoma cell lines Capan-11 In pancreatic carcinoma, dual EGFR/HER2 targeting with cetuximab/trastuzumab is more effective than treatment with trastuzumab/erlotinib or lapatinib alone: implication of receptors down- regulation

Paris-Sud XI, Université de

489

Green Fluorescent Protein Variants as Ratiometric Dual Emission pH Sensors. 1. Structural Characterization and Preliminary Application  

E-Print Network [OSTI]

pH- sensitive dye, SNARF-1, to changes in pH were compared in the same cells. Results showVed August 9, 2002; ReVised Manuscript ReceiVed October 1, 2002 ABSTRACT: Novel dual emission, pH-sensitive cells by transient expression in PS120 fibroblasts. The responses of deGFP4 and a commercially available

Boxer, Steven G.

490

Exact Solutions of Nonlinear Schrodinger's Equation with Dual Power-Law Nonlinearity by Extended Trial Equation Method  

E-Print Network [OSTI]

In this paper, we acquire the soliton solutions of the nonlinear Schrodinger's equation with dual power-law nonlinearity. Primiraly, we use the extended trial equation method to find exact solutions of this equation. Then, we attain some exact solutions including soliton solutions, rational and elliptic function solutions of this equation by using the extended trial equation method.

Hasan Bulut; Yusuf Pandir; Seyma Tuluce Demiray

2014-02-04T23:59:59.000Z

491

IEEE ELECTRON DEVICE LETTERS, VOL. 19, NO. 4, APRIL 1998 97 A Dual-Metal-Trench Schottky  

E-Print Network [OSTI]

IEEE ELECTRON DEVICE LETTERS, VOL. 19, NO. 4, APRIL 1998 97 A Dual-Metal-Trench Schottky Pinch-rectifiers are reported for the first time. At a reverse bias of 300 V, the reverse leakage current of the SiC DMT device is 75 times less than that of a planar device while the forward bias characteristics remain comparable

Woodall, Jerry M.

492

Dual Mechanisms of Cognitive Control: Interference Effects on Working Memory are Modulated by Expectancy and Fluid Intelligence  

E-Print Network [OSTI]

), proactive control mechanisms preferred · Fluid Intelligence (gF) · Fluid intelligence possibly relatedDual Mechanisms of Cognitive Control: Interference Effects on Working Memory are Modulated by Expectancy and Fluid Intelligence Gregory C. Burgess and Todd S. Braver Department of Psychology , Washington

Burgess, Greg

493

Fusion Engineering and Design 81 (2006) 461467 An overview of dual coolant Pb17Li breeder first wall and blanket  

E-Print Network [OSTI]

. Helium is used to cool the first wall and blanket structure, and the self-cooled breeder Pb≠17Li.V. All rights reserved. Keywords: Blanket; Pb≠17Li breeder; Dual-coolant; Helium-cooled; ITER coolant Pb≠17Li liquid breeder (DCLL) blanket design, a con- cept that has been explored extensively

Abdou, Mohamed

2006-01-01T23:59:59.000Z

494

Procedure and Application for Determining the Cold Deck and Hot Deck Airflow in a Dual-Duct System  

E-Print Network [OSTI]

This paper introduces an innovative method to determine the cold and hot airflow through a dual-duct variable air volume (VAV) system. The actual building load can be identified based on the calculated airflow and temperature for both the cold...

Liu, G.; Mingsheng, L.

2006-01-01T23:59:59.000Z

495

Vortex Proliferation and the Dual Superconductor Scenario for Confinement: The 3D Compact U(1) Lattice Higgs Model  

E-Print Network [OSTI]

It is argued that the phase diagram of the 3D Compact U(1) Lattice Higgs Model is more refined than generally thought. The confined and Higgs phases are separated by a well-defined phase boundary, marked by proliferating vortices. It is shown that the confinement mechanism at work is precisely the dual superconductor scenario.

Sandro Wenzel; Elmar Bittner; Wolfhard Janke; Adriaan M. J. Schakel; Arwed Schiller

2005-10-24T23:59:59.000Z

496

TIC Project and Building Description The University is committed to the dual ethos of sustainability and responsible global citizenship; it  

E-Print Network [OSTI]

TIC Project and Building Description The University is committed to the dual ethos of sustainability and responsible global citizenship; it aims to be an exemplar of sustainable practice in the design, construction, and operation of our buildings. The Technology and Innovation Centre embodies

Mottram, Nigel

497

1 | P a g e Summary of Fish-Barge Interaction Research and Fixed Dual Frequency Identification Sonar  

E-Print Network [OSTI]

1 | P a g e Summary of Fish-Barge Interaction Research and Fixed Dual Frequency Identification of Engineers (USACE) and the U.S. Fish and Wildlife Service (USFWS) have conducted laboratory and field in the Chicago Sanitary and Ship Canal (CSSC) and the resulting impacts to fish behavior. The experiments

US Army Corps of Engineers

498

Visible light stimulating dual-wavelength emission and O vacancy involved energy transfer behavior in luminescence for coaxial nanocable arrays  

SciTech Connect (OSTI)

We report a strategy to investigate O vacancy (V{sub O}) involved energy transfer and dual-wavelength yellow emission in coaxial nanocable. By electric field deposition and subsequent sol-gel template approach, ZnO:Tb/Y{sub 2}O{sub 3}:Eu coaxial nanocable arrays are synthesized. After visible light excitation, system is promoted to O vacancy charge transfer state of V{sub O}(0/+). In the following cross relaxation, energy transfer from V{sub O} to the excitation energy level of Tb{sup 3+} in ZnO:Tb core area. While in Y{sub 2}O{sub 3}:Eu shell area, energy transfer to the excitation energy level of Eu{sup 3+}. Subsequently, dual-wavelength emission is observed. By constructing nanocable with dual-wavelength emission, yellow luminescence is obtained. Adjust doping concentration of Eu{sup 3+} or Tb{sup 3+} in the range of 0.01Ė0.05, chromaticity coordinates of ZnO:Tb/Y{sub 2}O{sub 3}:Eu nanocable stably stays at yellow region in color space except ZnO:Tb{sub 0.01}/Y{sub 2}O{sub 3}:Eu{sub 0.01}. As Vo states act as media in energy transfer process in nanocablers, visible light can stimulate dual-wavelength emissions. Yellow luminescent nanocable arrays will have great applications in light-emitting diode luminescence.

Yang, Lei, E-mail: nanoyang@qq.com [College of Materials Science and Engineering, Hunan University, Changsha 410082 (China); Hunan Province Key Laboratory for Spray Deposition Technology and Application, Hunan University, Changsha 410082 (China); Dong, Jiazhang; Jiang, Zhongcheng [College of Materials Science and Engineering, Hunan University, Changsha 410082 (China); Pan, Anlian; Zhuang, Xiujuan [Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082 (China)

2014-06-14T23:59:59.000Z

499

A Dual Model-Free Control of Underactuated Mechanical Systems, Application to The Inertia Wheel Inverted Pendulum  

E-Print Network [OSTI]

A Dual Model-Free Control of Underactuated Mechanical Systems, Application to The Inertia Wheel underac- tuated mechanical system: the inertia wheel inverted pendulum. Numerical simulations as well: the ball and beam [9] (where the dynamics of the beam has not been taken into account) and the Planar

Paris-Sud XI, Université de

500

Dual annular rotating [open quotes]windowed[close quotes] nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core. 4 figures.

Jacox, M.G.; Drexler, R.L.; Hunt, R.N.M.; Lake, J.A.

1994-03-29T23:59:59.000Z