Sample records for global positioning system

  1. Global positioning system recorder and method

    DOE Patents [OSTI]

    Hayes, D.W.; Hofstetter, K.J.; Eakle, R.F. Jr.; Reeves, G.E.

    1998-12-22T23:59:59.000Z

    A global positioning system recorder (GPSR) is disclosed in which operational parameters and recorded positional data are stored on a transferable memory element. Through this transferrable memory element, the user of the GPSR need have no knowledge of GPSR devices other than that the memory element needs to be inserted into the memory element slot and the GPSR must be activated. The use of the data element also allows for minimal downtime of the GPSR and the ability to reprogram the GPSR and download data therefrom, without having to physically attach it to another computer. 4 figs.

  2. Global Positioning System receiver evaluation results

    SciTech Connect (OSTI)

    Byrne, R.H.

    1993-09-01T23:59:59.000Z

    A Sandia project currently uses an outdated Magnavox 6400 Global Positioning System (GPS) receiver as the core of its navigation system. The goal of this study was to analyze the performance of the current GPS receiver compared to newer, less expensive models and to make recommendations on how to improve the performance of the overall navigation system. This paper discusses the test methodology used to experimentally analyze the performance of different GPS receivers, the test results, and recommendations on how an upgrade should proceed. Appendices contain detailed information regarding the raw data, test hardware, and test software.

  3. Crustal motion in Indonesia from Global Positioning System measurements

    E-Print Network [OSTI]

    McCaffrey, Robert

    Crustal motion in Indonesia from Global Positioning System measurements Y. Bock,1 L. Prawirodirdjo: crustal motion, Indonesia tectonics, GPS, current plate motions, Southeast Asia Citation: Bock, Y., L, Crustal motion in Indonesia from Global Positioning System measurements, J. Geophys. Res., 108(B8), 2367

  4. 12.540 Principles of Global Positioning Systems, Spring 2008

    E-Print Network [OSTI]

    Herring, Thomas

    The aim of this course is to introduce the principles of the Global Positioning System and to demonstrate its application to various aspects of Earth Sciences. The specific content of the course depends each year on the ...

  5. Wide area augmentation of the Global Positioning System

    SciTech Connect (OSTI)

    Enge, P.; Walter, T.; Pullen, S.; Kee, C.; Chao, Y.C.; Tsai, Y.J. [Stanford Univ., CA (United States). Dept. of Aeronautics and Astronautics] [Stanford Univ., CA (United States). Dept. of Aeronautics and Astronautics

    1996-08-01T23:59:59.000Z

    The Wide Area Augmentation System (WAAS) is being deployed by the Federal Aviation Administration (FAA) to augment the Global Positioning System (GPS). The WAAS will aid GPS with the following three services. First, it will broadcast spread-spectrum ranging signals from communication satellites. The airborne WAAS receiver will add these new ranging signals to the GPS constellation of measurements. By so doing, the augmented position fix will be less sensitive to the failure of individual system components, thus improving time availability and continuity of service. Second, the WAAS will use a nationwide ground network to monitor the health of all satellites over the airspace and flag situations which threaten flight safety. This data will be modulated on to the WAAS ranging signals and broadcast to the users, thereby guaranteeing the integrity of the airborne position fix. Third, the WAAS will use the ground network to develop corrections for the errors which currently limit the accuracy of unaugmented GPS. This data will also be included on the WAAS broadcast and will improve position accuracy from approximately 100 m to 8 m. When complete, the augmented system will provide an accurate position fix from satellites to an unlimited number of aircraft across the nation. It will be the primary navigation system for aircraft in oceanic routes, enroute over domestic airspace, in crowded metropolitan airspaces, and on airport approach.

  6. Global positioning system pseudolite-based relative navigation.

    SciTech Connect (OSTI)

    Monda, Eric W. (University of Texas, Austin, TX)

    2004-03-01T23:59:59.000Z

    Though the Global Positioning System has revolutionized navigation in the modern age, it is limited in its capability for some applications because an unobstructed line of sight to a minimum of four satellites is required. One way of augmenting the system in small areas is by employing pseudolites to broadcast additional signals that can be used to improve the user's position solution. At the Navigation Systems Testing Laboratory (NSTL) at NASA's Johnson Space Center in Houston, TX, research has been underway on the use of pseudolites to perform precision relative navigation. Based on the findings of previous research done at the NSTL, the method used to process the pseudolite measurements is an extended Kalman filter of the double differenced carrier phase measurements. By employing simulations of the system, as well as processing previously collected data in a real time manner, sub-meter tracking of a moving receiver with carrier phase measurements in the extended Kalman filter appears to be possible.

  7. SIG Technology Review Summer 1994 57 Real-Time Navigation Using the Global Positioning System

    E-Print Network [OSTI]

    Simon, Dan

    SIG Technology Review · Summer 1994 57 Real-Time Navigation Using the Global Positioning System Real-Time Navigation Using the Global Positioning System Dan Simon and Hossny El-Sherief, TRW Ballistic Technology Review · Summer 1994 Real-Time Navigation Using the Global Positioning System introduces errors

  8. Ionospheric Threat Parameterization for Local Area Global-Positioning-System-Based Aircraft Landing Systems

    E-Print Network [OSTI]

    Stanford University

    Ionospheric Threat Parameterization for Local Area Global-Positioning-System-Based Aircraft Landing of user separation. The method of data analysis that produced these results is described, and a threat space that parameterizes these possible threats to user integrity is defined. Certain configurations

  9. 12.540 Principles of the Global Positioning System, Spring 2003

    E-Print Network [OSTI]

    Herring, T. (Thomas)

    The aim of this course is to introduce the principles of the Global Positioning System and to demonstrate its application to various aspects of Earth Sciences. The specific content of the course depends each year on the ...

  10. Vermessung & Geoinformation 2/2011, P. 171 179, 7 Figs. 171171 Precise Point Positioning (PPP) denotes a GNSS (Global Navigation Satellite System) based positioning technique,

    E-Print Network [OSTI]

    Schuh, Harald

    (PPP) denotes a GNSS (Global Navigation Satellite System) based positioning technique, where dual parameters along with the site coordinates. Introduced for the first time about 14 years ago the PPP technique was mainly used in post-processing applications. Barriers for a more intense use of PPP were

  11. Relativistic Positioning Systems

    E-Print Network [OSTI]

    Bartolom Coll

    2006-02-01T23:59:59.000Z

    The theory of relativistic {\\em location systems} is sketched. An interesting class of these systems is that of relativistic {\\em positioning systems,} which consists in sets of four clocks broadcasting their proper time. Among them, the more important ones are the {\\em auto-located positioning systems,} in which every clock broadcasts not only its proper time but the proper times that it receives from the other three. At this level, no reference to any exterior system (the Earth surface, for example) and no synchronization are needed. Some properties are presented. In the SYPOR project, such a structure is proposed, eventually anchored to a classical reference system on the Earth surface, as the best relativistic structure for Global Navigation Satellite Systems.

  12. Synthetic Aperture Digital Beamsteering Array for Global Positioning System Interference Mitigation: A Study on Array Topology

    E-Print Network [OSTI]

    Harms, Joel K

    2014-05-20T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.5.5 Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.5.6 Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.5.7 Position, Velocity, and Time (PVT) Determination . . . . . . 53 4. ANTENNA PHASED ARRAYS... Acquisition (C/A) Signal to Noise Floor[3] . . . . . . . . . . 46 3.10 Receiver Block Diagram[20] . . . . . . . . . . . . . . . . . . . . . . 47 3.11 Software Defined Radio Receiver Block Diagram[20] . . . . . . . . . 49 3.12 Acquisition Frequency Doppler...

  13. Application of the Global Positioning System to the Measurement of Overhead Power Transmission Conductor Sag

    E-Print Network [OSTI]

    , incident solar radiation, limiting physical conductor characteristics, and conductor configuration renewed importance because some companies are marketing transmission access. A widely used system

  14. A software package for the graphical simulation of the Global Positioning System's satellite orbits

    E-Print Network [OSTI]

    Martinez-Lopez, Eugenio

    1981-01-01T23:59:59.000Z

    re- duced computational time significantly. Second-harmonic distortion equations (from KEPGEN (1]) were not included for the GPSSGS version. No visual effect was detected in the displayed position of the orbits. Tests conducted for both KEPGEN...01 = 15 Lili = 75 I "2 = 30 I '2 = 85 VEL = . 13 TING 120 kms degl'ees degrees degrees degrees kas/sec aec PAPAHPTPH VAIUES P = 1134. 83 H3 = . 18 N = 2. 11 x 105 TT 8473 - "2. 53 x 10 I ~ 16. 09 kaa radians red l. ans/s eC aee...

  15. Determination of locational error associated with global positioning system (GPS) radio collars in relation to vegetation and topography in north-central New Mexico

    SciTech Connect (OSTI)

    Bennett, K.; Biggs, J.; Fresquez, P.R.

    1997-02-01T23:59:59.000Z

    In 1996, a study was initiated to assess seasonal habitat use and movement patterns of Rocky Mountain elk (Cervus elaphus nelsoni) using global positioning system (GPS) radio collars. As part of this study, the authors attempted to assess the accuracies of GPS (non-differentially corrected) positions under various vegetation canopies and terrain conditions with the use of a GPS ``test`` collar. The test collar was activated every twenty minutes to obtain a position location and continuously uplinked to Argos satellites to transfer position data files. They used a Telonics, Inc. uplink receiver to intercept the transmission and view the results of the collar in real time. They placed the collar on a stand equivalent to the neck height of an adult elk and then placed the stand within three different treatment categories: (1) topographical influence (canyon and mesa tops), (2) canopy influence (open and closed canopy), and (3) vegetation type influence (ponderosa pine and pinion pine-juniper). The collar was kept at each location for one hour (usually obtaining three fixes). In addition, the authors used a hand-held GPS to obtain a position of the test collar at the same time and location.

  16. Shoreline monitoring program on the Upper Texas Coast utilizing a Real-Time Kinematic Differential Global Positioning System

    E-Print Network [OSTI]

    Wamsley, Ty V

    2000-01-01T23:59:59.000Z

    . The current research has provided a survey system capable of performing fast, accurate surveys in the nearshore and a baseline data set. The survey system is fully operational and will be instrumental in the ongoing research related to the Highway 87...

  17. Systems integration for global sustainability

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    Le, A. Z. Khan, Improving integration for integrated coastal347 ISSUE 6225 Systems integration for global sustainabilitySUSTAINABILITY Systems integration for global sustainability

  18. Evaluation of habitat use by Rocky Mountain elk (Cervus elaphus nelsoni) in north-central New Mexico using global positioning system radio collars

    SciTech Connect (OSTI)

    Biggs, J.; Bennett, K.; Fresquez, P.R.

    1997-04-01T23:59:59.000Z

    In 1996 the authors initiated a study to identify habitat use in north-central New Mexico by Rocky Mountain elk (Cervus elaphus nelsoni) using global positioning system (GPS) radio collars. They collared six elk in the spring of 1996 with GPS radio collars programmed to obtain locational fixes every 23 h. Between April 1, 1996 and January 7, 1997, they collected >1,200 fixes with an approximately 70% observation rate. They have interfaced GPS locational fixes of elk and detailed vegetation maps using the geographical information system to provide seasonal habitat use within mountainous regions of north-central New Mexico. Based on habitat use and availability analysis, use of grass/shrub and pinon/juniper habitats was generally higher than expected during most seasons and use of forested habitats was lower than expected. Most of the collared elk remained on LANL property year-round. The authors believe the application of GPS collars to elk studies in north-central New Mexico to be a more efficient and effective method than the use of VHF (very-high frequency) radio collars.

  19. Turbine nozzle positioning system

    DOE Patents [OSTI]

    Norton, P.F.; Shaffer, J.E.

    1996-01-30T23:59:59.000Z

    A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes an outer shroud having a mounting leg with an opening defined therein, a tip shoe ring having a mounting member with an opening defined therein, a nozzle support ring having a plurality of holes therein and a pin positioned in the corresponding opening in the outer shroud, opening in the tip shoe ring and the hole in the nozzle support ring. A rolling joint is provided between metallic components of the gas turbine engine and the nozzle guide vane assembly. The nozzle guide vane assembly is positioned radially about a central axis of the gas turbine engine and axially aligned with a combustor of the gas turbine engine. 9 figs.

  20. Turbine nozzle positioning system

    DOE Patents [OSTI]

    Norton, Paul F. (San Diego, CA); Shaffer, James E. (Maitland, FL)

    1996-01-30T23:59:59.000Z

    A nozzle guide vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The nozzle guide vane assembly includes an outer shroud having a mounting leg with an opening defined therein, a tip shoe ring having a mounting member with an opening defined therein, a nozzle support ring having a plurality of holes therein and a pin positioned in the corresponding opening in the outer shroud, opening in the tip shoe ring and the hole in the nozzle support ring. A rolling joint is provided between metallic components of the gas turbine engine and the nozzle guide vane assembly. The nozzle guide vane assembly is positioned radially about a central axis of the gas turbine engine and axially aligned with a combustor of the gas turbine engine.

  1. System and method for acquisition management of subject position information

    DOE Patents [OSTI]

    Carrender, Curt

    2005-12-13T23:59:59.000Z

    A system and method for acquisition management of subject position information that utilizes radio frequency identification (RF ID) to store position information in position tags. Tag programmers receive position information from external positioning systems, such as the Global Positioning System (GPS), from manual inputs, such as keypads, or other tag programmers. The tag programmers program each position tag with the received position information. Both the tag programmers and the position tags can be portable or fixed. Implementations include portable tag programmers and fixed position tags for subject position guidance, and portable tag programmers for collection sample labeling. Other implementations include fixed tag programmers and portable position tags for subject route recordation. Position tags can contain other associated information such as destination address of an affixed subject for subject routing.

  2. System and method for acquisition management of subject position information

    DOE Patents [OSTI]

    Carrender, Curt (Morgan Hill, CA)

    2007-01-23T23:59:59.000Z

    A system and method for acquisition management of subject position information that utilizes radio frequency identification (RF ID) to store position information in position tags. Tag programmers receive position information from external positioning systems, such as the Global Positioning System (GPS), from manual inputs, such as keypads, or other tag programmers. The tag programmers program each position tag with the received position information. Both the tag programmers and the position tags can be portable or fixed. Implementations include portable tag programmers and fixed position tags for subject position guidance, and portable tag programmers for collection sample labeling. Other implementations include fixed tag programmers and portable position tags for subject route recordation. Position tags can contain other associated information such as destination address of an affixed subject for subject routing.

  3. Position and orientation tracking system

    DOE Patents [OSTI]

    Burks, B.L.; DePiero, F.W.; Armstrong, G.A.; Jansen, J.F.; Muller, R.C.; Gee, T.F.

    1998-05-05T23:59:59.000Z

    A position and orientation tracking system presents a laser scanning apparatus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle. 14 figs.

  4. Position and orientation tracking system

    DOE Patents [OSTI]

    Burks, Barry L. (Oak Ridge, TN); DePiero, Fred W. (Knoxville, TN); Armstrong, Gary A. (Oak Ridge, TN); Jansen, John F. (Knoxville, TN); Muller, Richard C. (Oak Ridge, TN); Gee, Timothy F. (Riceville, TN)

    1998-01-01T23:59:59.000Z

    A position and orientation tracking system presents a laser scanning appaus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle.

  5. International Journal of Systems Science, 1999, volume 30, number 9, pages 939 946 Global attitude/position regulation for underwater vehicles

    E-Print Network [OSTI]

    Krstic, Miroslav

    controller is designed for a 6 DOF model of an unmanned underwater vehicle (UUV) which includes both/position regulation for underwater vehicles DEJAN M. BOSKOVIC and MIROSLAV KRSTIC In this paper a nonlinear underwater vehicles (UUVs) is an area of growing interest due to their ability to operate at depths

  6. Self-correcting differential global positioning system

    E-Print Network [OSTI]

    Schreiber, Randal Alfred

    1993-01-01T23:59:59.000Z

    for supplying the needed maps of the area and giving lime driving me up and down the track. David Hindman of Starlink RF, l?igitai & Software Design helped tremendously in teaching me how to use the Tremetdcs Globestar GPS Receiver. Also, I would like.... 53416 0. 53415 -1. 70498 -1. 70496 -1. 70494 -1. 70492 Longitude (radians) -1. 7049 Figure 14. Over Head and Cross Track Correction. 0. 53423 On Track Correction 0. 53422 0. 53421 'I 0. 5342 I 0. 53419 8 ei 0. 53418 0. 53417 0 Receiver...

  7. Constrained tri-sphere kinematic positioning system

    DOE Patents [OSTI]

    Viola, Robert J (Jackson, WY)

    2010-12-14T23:59:59.000Z

    A scalable and adaptable, six-degree-of-freedom, kinematic positioning system is described. The system can position objects supported on top of, or suspended from, jacks comprising constrained joints. The system is compatible with extreme low temperature or high vacuum environments. When constant adjustment is not required a removable motor unit is available.

  8. Renewable Energy Positioning System: Energy Positioning: Control and Economics

    SciTech Connect (OSTI)

    None

    2012-03-01T23:59:59.000Z

    GENI Project: The University of Washington and the University of Michigan are developing an integrated system to match well-positioned energy storage facilities with precise control technologies so the electric grid can more easily include energy from renewable power sources like wind and solar. Because renewable energy sources provide intermittent power, it is difficult for the grid to efficiently allocate those resources without developing solutions to store their energy for later use. The two universities are working with utilities, regulators, and the private sector to position renewable energy storage facilities in locations that optimize their ability to provide and transmit electricity where and when it is needed most. Expanding the network of transmission lines is prohibitively expensive, so combining well-placed storage facilities with robust control systems to efficiently route their power will save consumers money and enable the widespread use of safe, renewable sources of power.

  9. Investigation of GPS/IMU Positioning System for Mining Equipment

    SciTech Connect (OSTI)

    Ken L. Stratton

    2006-09-13T23:59:59.000Z

    The objective of this project is to investigate the applicability of a combined Global Positioning System and Inertial Measurement Unit (GPS/IMU) for information based displays on earthmoving machines and for automated earthmoving machines in the future. This technology has the potential of allowing an information-based product like Caterpillar's Computer Aided Earthmoving System (CAES) to operate in areas with satellite shading. Satellite shading is an issue in open pit mining because machines are routinely required to operate close to high walls, which reduces significantly the amount of the visible sky to the GPS antenna mounted on the machine. An inertial measurement unit is a product, which provides data for the calculation of position based on sensing accelerations and rotation rates of the machine's rigid body. When this information is coupled with GPS it results in a positioning system that can maintain positioning capability during time periods of shading.

  10. William Rees appointed to new Global Security leadership position

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengtheningWildfires may contribute more to global warmingGlobal security

  11. Positional reference system for ultraprecision machining

    DOE Patents [OSTI]

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

    1982-01-01T23:59:59.000Z

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

  12. Positional reference system for ultraprecision machining

    DOE Patents [OSTI]

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

    1980-09-12T23:59:59.000Z

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

  13. Rubber bearings for precision positioning systems

    E-Print Network [OSTI]

    Barton Martinelli, Augusto E

    2005-01-01T23:59:59.000Z

    In this thesis we investigate the use of thin rubber sheets or laminates of metal and rubber sheets as bearings in precision positioning systems. Such bearings have the potential to replace more conventional flexures ...

  14. Global Nonexistence for Abstract Evolution Equations with Positive Initial Energy

    E-Print Network [OSTI]

    Pucci, Patrizia

    of the initial value problem for abstract evolution equations of the form Putt + Q(t)ut + A(t, u) = F(t, u), t J appropriately small positive values. His analysis primarily considers linear wave operators, and moreover Scientifica e Tecnologica under the auspices of the Gruppo Nazionale di Analisi Funzionale e sue Applicazioni

  15. Superintegrable systems with position dependent mass

    E-Print Network [OSTI]

    A. G. Nikitin; T. M. Zasadko

    2014-06-08T23:59:59.000Z

    First order integrals of motion for Schr\\"odinger equations with position dependent masses are classified. Seventeen classes of such equations with non-equivalent symmetries are specified. They include integrable, superintegrable and maximally superintegrable systems. Among them is a system invariant with respect to the Lie algebra of Lorentz group and a system whose integrals of motion form algebra so(4). Three of the obtained systems are solved exactly.

  16. A Prototype Wire Position Monitoring System

    SciTech Connect (OSTI)

    Wang, Wei

    2010-12-07T23:59:59.000Z

    The Wire Position Monitoring System (WPM) will track changes in the transverse position of LCLS Beam Position Monitors (BPMs) to 1{micro}m over several weeks. This position information will be used between applications of beam based alignment to correct for changes in component alignment. The WPM system has several requirements. The sensor range must be large enough so that precision sensor positioning is not required. The resolution needs to be small enough so that the signal can be used to monitor motion to 1{micro}m. The system must be stable enough so that system drift does not mimic motion of the component being monitored. The WPM sensor assembly consists of two parts, the magnetic sensor and an integrated lock-in amplifier. The magnetic sensor picks up a signal from the alternating current in a stretched wire. The voltage v induced in the sensor is proportional to the wire displacement from the center of the sensor. The integrated lock-in amplifier provides a DC output whose magnitude is proportional to the AC signal from the magnetic sensor. The DC output is either read on a digital voltmeter or digitized locally and communicated over a computer interface.

  17. Dynamic Positioning Systems Usability and Interaction Styles

    E-Print Network [OSTI]

    Dunlop, Mark D.

    started offshore- drilling in search of larger deposits of oil. With this, a new generation of vessels on interaction with Dynamic Positioning Systems (DP) and how new interaction styles can be introduced to make/multi-touch combined with hand-gestures to create a new type of user-experience. The aim for this research

  18. Global Dynamics in Galactic Triaxial Systems I

    E-Print Network [OSTI]

    Pablo M. Cincotta; Claudia M. Giordano; Josefa Perez; .

    2006-04-21T23:59:59.000Z

    In this paper we present a theoretical analysis of the global dynamics in a triaxial galactic system using a 3D integrable Hamiltonian as a simple representation. We include a thorough discussion on the effect of adding a generic non--integrable perturbation to the global dynamics of the system. We adopt the triaxial Stackel Hamiltonian as the integrable model and compute its resonance structure in order to understand its global dynamics when a perturbation is introduced. Also do we take profit of this example in order to provide a theoretical discussion about diffussive processes taking place in phase space.

  19. Global optimization of hybrid systems

    E-Print Network [OSTI]

    Lee, Cha Kun

    2006-01-01T23:59:59.000Z

    Systems that exhibit both discrete state and continuous state dynamics are called hybrid systems. In most nontrivial cases, these two aspects of system behavior interact to such a significant extent that they cannot be ...

  20. Post-doctoral Position Title Quantify the net global climate impacts of past and future land-

    E-Print Network [OSTI]

    Pouyanne, Nicolas

    objective is to make this protocol widely available so that other earth system modeling groups outside uses and land use changes in global earth system models, and test the impact of various implementation

  1. Global integrated drought monitoring and prediction system

    E-Print Network [OSTI]

    Kimball, Sarah

    for a global drought early warning system1 . Drought effects are incremental and happen over a long period food to avoid food crises requires advanced drought early warning and prediction systems. In particular for International Development (USAID) Famine Early Warning System Network (FEWS Net)11 , United States Drought

  2. Demonstration of Next Generation PEM CHP Systems for Global Markets...

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

    Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI...

  3. Global analysis of positive and negative pre-mRNA splicing regulators

    E-Print Network [OSTI]

    Global analysis of positive and negative pre-mRNA splicing regulators in Drosophila Marco] Supplemental material is available at http://www.genesdev.org. Received March 10, 2005; revised version identification of the hnRNP proteins PSI and hrp48 as regulators of the P-transposase pre-mRNA (Siebel et al

  4. GLOBAL ATTRACTORS OF NONAUTONOMOUS DYNAMICAL SYSTEMS AND ALMOST PERIODIC LIMIT

    E-Print Network [OSTI]

    Louisiana State University

    of general nonautonomous dynamical systems admitting the global compact attractor with special property. x 1

  5. GPS(global positioning system) , , . D. Patterson GPS(Global Positioning

    E-Print Network [OSTI]

    Cho, Sung-Bae

    , . ( ) ( ) ( ) ( )( ) ( )nyinbhnnwnw iii ,1 +=+ 0 . GPS . RSOM . . Q P . t i t+1 j Pij P 1 . = nnnn n n ppp ppp ppp P 21 22221

  6. Ubiquitous Positioning: A Taxonomy for Location Determination on Mobile Navigation System

    E-Print Network [OSTI]

    Bejuri, Wan Mohd Yaakob Wan; Sapri, Maimunah; 10.5121/sipij.2011.2103

    2011-01-01T23:59:59.000Z

    The location determination in obstructed area can be very challenging especially if Global Positioning System are blocked. Users will find it difficult to navigate directly on-site in such condition, especially indoor car park lot or obstructed environment. Sometimes, it needs to combine with other sensors and positioning methods in order to determine the location with more intelligent, reliable and ubiquity. By using ubiquitous positioning in mobile navigation system, it is a promising ubiquitous location technique in a mobile phone since as it is a familiar personal electronic device for many people. However, as research on ubiquitous positioning systems goes beyond basic methods there is an increasing need for better comparison of proposed ubiquitous positioning systems. System developers are also lacking of good frameworks for understanding different options during building ubiquitous positioning systems. This paper proposes taxonomy to address both of these problems. The proposed taxonomy has been constr...

  7. Postdoctoral Position at North Carolina State University Title: Consequences of urban and global warming for arthropod ecology and

    E-Print Network [OSTI]

    Behmer, Spencer T.

    Postdoctoral Position at North Carolina State University Title: Consequences of urban and global warming for arthropod ecology and evolution Description: One postdoctoral position will be available heat islands and global climate change for arthropods of societal or economic importance. The study

  8. Vermessung & Geoinformation 2/2011, P. 114 121, 5 Figs.114 Within the last decade, Precise Point Positioning (PPP) has been discussed by GNSS (Global Navigation Satellite

    E-Print Network [OSTI]

    Schuh, Harald

    , Precise Point Positioning (PPP) has been discussed by GNSS (Global Navigation Satellite System) experts and research groups all over the world. PPP uses code or phase observations on zero-difference level in combination with precise orbits and clock corrections to achieve highly accurate point coordinates. PPP

  9. Optimal estimation of ionosphere-induced group delays of global positioning satellite signals during launch, orbit and re-entry

    E-Print Network [OSTI]

    Johnson, Andrea Marie, S.M. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    There are many sources of range error in a Global Positioning Satellite (GPS) signal that has traveled to a receiver near the earth's surface. Among these is the ionospheric group delay. In the past, a single-state, ...

  10. Department of World Economy, St. Petersburg State University offers a position at the global PhD partnership programme

    E-Print Network [OSTI]

    Knobloch,Jrgen

    Department of World Economy, St. Petersburg State University offers a position at the global Ph and the global economy. The programme combines integrated training workshops and internship opportunities across: international relations, international political economy, area studies and new qualitative methods. Fluency

  11. Global Microturbine Systems Market | OpenEI Community

    Open Energy Info (EERE)

    Global Microturbine Systems Market Home John55364's picture Submitted by John55364(95) Contributor 11 May, 2015 - 04:00 Expected Technological Innovation to Drive Global Market for...

  12. Optimization Online - Global Optimization of Non-Linear Systems of ...

    E-Print Network [OSTI]

    Nicholas Harkiolakis

    2008-10-20T23:59:59.000Z

    Oct 20, 2008 ... Global Optimization of Non-Linear Systems of Equations by Simulating the ... 10th WSEAS International Conference on Mathematical Methods,...

  13. Prediction and Optimization of Global Systems using Mathematical...

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

    Prediction and Optimization of Global Systems using Mathematical and Statistical Modelling Event Sponsor: Mathematics and Computing Science - LANS Seminar Start Date: Jan 14 2015 -...

  14. Automated Vehicle Location (AVL) Using Global Positioning System (GPS)

    E-Print Network [OSTI]

    Dutta, Victor; Dhar, Sourav; Chakravorty, Jaydeep; Bagehel, Nishant

    2009-01-01T23:59:59.000Z

    this is a review paper. this describes how DGPS is helpful for lane detection and to avoid collission.

  15. ASRS Database Report Set Global Positioning System (GPS) Reports

    E-Print Network [OSTI]

    be limited. The National Aeronautics and Space Administration and its ASRS current contractor, Booz Allen Hamilton, specifically disclaim any responsibility for any interpretation which may be made by others

  16. Beam Position and Phase Monitor - Wire Mapping System

    SciTech Connect (OSTI)

    Watkins, Heath A [Los Alamos National Laboratory; Shurter, Robert B. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Kutac, Vincent G. [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory

    2012-04-10T23:59:59.000Z

    The Los Alamos Neutron Science Center (LANSCE) deploys many cylindrical beam position and phase monitors (BPPM) throughout the linac to measure the beam central position, phase and bunched-beam current. Each monitor is calibrated and qualified prior to installation to insure it meets LANSCE requirements. The BPPM wire mapping system is used to map the BPPM electrode offset, sensitivity and higher order coefficients. This system uses a three-axis motion table to position the wire antenna structure within the cavity, simulating the beam excitation of a BPPM at a fundamental frequency of 201.25 MHz. RF signal strength is measured and recorded for the four electrodes as the antenna position is updated. An effort is underway to extend the systems service to the LANSCE facility by replacing obsolete electronic hardware and taking advantage of software enhancements. This paper describes the upgraded wire positioning system's new hardware and software capabilities including its revised antenna structure, motion control interface, RF measurement equipment and Labview software upgrades. The main purpose of the wire mapping system at LANSCE is to characterize the amplitude response versus beam central position of BPPMs before they are installed in the beam line. The wire mapping system is able to simulate a beam using a thin wire and measure the signal response as the wire position is varied within the BPPM aperture.

  17. Position control of a servopneumatic system using fuzzy compensation

    E-Print Network [OSTI]

    Sathyanarayana, Sreenivas

    2000-01-01T23:59:59.000Z

    The position control of a servopneumatic system in the presence of stick-slip type of friction is investigated. A cost effective, model-free fuzzy compensation scheme is proposed. The fuzzy compensation scheme compensates for the friction force...

  18. Computer Science Adjunct Faculty Position for Operating Systems

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Computer Science Adjunct Faculty Position for Operating Systems Connecticut College is seeking a visiting professor (rank open) of computer science to teach one section of Operating have a Masters or equivalent in Computer Science or related field. The catalog course

  19. Position control of a servopneumatic system using fuzzy compensation

    E-Print Network [OSTI]

    Sathyanarayana, Sreenivas

    2000-01-01T23:59:59.000Z

    The position control of a servopneumatic system in the presence of stick-slip type of friction is investigated. A cost effective, model-free fuzzy compensation scheme is proposed. The fuzzy compensation scheme compensates for the friction force...

  20. Job Position Description Job Title: Computer Systems Assistant

    E-Print Network [OSTI]

    Moore, Paul A.

    Job Position Description Job Title: Computer Systems Assistant A. Main purpose of the job for department of Campus Operations. B. Primary responsibilities or key duties of the job (tasks performed

  1. Hybrid Renewable Energy Systems for a Dynamically Positioned Buoy

    E-Print Network [OSTI]

    Wood, Stephen L.

    of the vessel and environmental conditions, power requirements for DP tend to be quite substantial and costly of powering a low cost, simple, dynamic positioning system. This system was implemented on a dynamically a theoretical hybrid renewable energy system to power it, thereby improving on the station keeping buoy (SKB

  2. Electronic Non-Contacting Linear Position Measuring System

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    2005-06-14T23:59:59.000Z

    A non-contacting linear position location system employs a special transmission line to encode and transmit magnetic signals to a receiver on the object whose position is to be measured. The invention is useful as a non-contact linear locator of moving objects, e.g., to determine the location of a magnetic-levitation train for the operation of the linear-synchronous motor drive system.

  3. Coordinated joint motion control system with position error correction

    DOE Patents [OSTI]

    Danko, George (Reno, NV)

    2011-11-22T23:59:59.000Z

    Disclosed are an articulated hydraulic machine supporting, control system and control method for same. The articulated hydraulic machine has an end effector for performing useful work. The control system is capable of controlling the end effector for automated movement along a preselected trajectory. The control system has a position error correction system to correct discrepancies between an actual end effector trajectory and a desired end effector trajectory. The correction system can employ one or more absolute position signals provided by one or more acceleration sensors supported by one or more movable machine elements. Good trajectory positioning and repeatability can be obtained. A two-joystick controller system is enabled, which can in some cases facilitate the operator's task and enhance their work quality and productivity.

  4. Global Failure Criteria for Positive/Electrolyte/Negative Structure of Planar Solid Oxide Fuel Cell

    SciTech Connect (OSTI)

    Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.; Qu, Jianmin

    2009-07-15T23:59:59.000Z

    Due to mismatch of the coefficients of thermal expansion of various layers in the positive/electrolyte/negative (PEN) structures of solid oxide fuel cells (SOFC), thermal stresses and warpage on the PEN are unavoidable due to the temperature changes from the stress-free sintering temperature to room temperature during the PEN manufacturing process. In the meantime, additional mechanical stresses will also be created by mechanical flattening during the stack assembly process. In order to ensure the structural integrity of the cell and stack of SOFC, it is necessary to develop failure criteria for SOFC PEN structures based on the initial flaws occurred during cell sintering and stack assembly. In this paper, the global relationship between the critical energy release rate and critical curvature and maximum displacement of the warped cells caused by the temperature changes as well as mechanical flattening process is established so that possible failure of SOFC PEN structures may be predicted deterministically by the measurement of the curvature and displacement of the warped cells.

  5. Multipath Reflections Analysis on Indoor Visible Light Positioning System

    E-Print Network [OSTI]

    Gu, Wenjun; Kavehrad, Mohsen

    2015-01-01T23:59:59.000Z

    Visible light communication (VLC) has become a promising research topic in recent years, and finds its wide applications in indoor environments. Particularly, for location based services (LBS), visible light also provides a practical solution for indoor positioning. Multipath-induced dispersion is one of the major concerns for complex indoor environments. It affects not only the communication performance but also the positioning accuracy. In this paper, we investigate the impact of multipath reflections on the positioning accuracy of indoor VLC positioning systems. Combined Deterministic and Modified Monte Carlo (CDMMC) approach is applied to estimate the channel impulse response considering multipath reflections. Since the received signal strength (RSS) information is used for the positioning algorithm, the power distribution from one transmitter in a typical room configuration is first calculated. Then, the positioning accuracy in terms of root mean square error is obtained and analyzed.

  6. Position control system for use with micromechanical actuators

    DOE Patents [OSTI]

    Guckel, Henry (Madison, WI); Stiers, Eric W. (Madison, WI)

    2000-01-01T23:59:59.000Z

    A positioning system adapted for use with micromechanical actuators provides feedback control of the position of the movable element of the actuator utilizing a low Q sensing coil. The effective inductance of the sensing coil changes with position of the movable element to change the frequency of oscillation of a variable oscillator. The output of the variable oscillator is compared in a phase detector to a reference oscillator signal. The phase detector provides a pulsed output having a pulse duty cycle related to the phase or frequency difference between the oscillator signals. The output of the phase detector is provided to a drive coil which applies a magnetic force to the movable element which balances the force of a spring. The movable element can be displaced to a new position by changing the frequency of the reference oscillator.

  7. Resolution of a High Performance Cavity Beam Position Monitor System

    SciTech Connect (OSTI)

    Walston, S; Chung, C; Fitsos, P; Gronberg, J; Ross, M; Khainovski, O; Kolomensky, Y; Loscutoff, P; Slater, M; Thomson, M; Ward, D; Boogert, S; Vogel, V; Meller, R; Lyapin, A; Malton, S; Miller, D; Frisch, J; Hinton, S; May, J; McCormick, D; Smith, S; Smith, T; White, G; Orimoto, T; Hayano, H; Honda, Y; Terunuma, N; Urakawa, J

    2005-09-12T23:59:59.000Z

    International Linear Collider (ILC) interaction region beam sizes and component position stability requirements will be as small as a few nanometers. It is important to the ILC design effort to demonstrate that these tolerances can be achieved - ideally using beam-based stability measurements. It has been estimated that RF cavity beam position monitors (BPMs) could provide position measurement resolutions of less than one nanometer and could form the basis of the desired beam-based stability measurement. We have developed a high resolution RF cavity BPM system. A triplet of these BPMs has been installed in the extraction line of the KEK Accelerator Test Facility (ATF) for testing with its ultra-low emittance beam. A metrology system for the three BPMs was recently installed. This system employed optical encoders to measure each BPM's position and orientation relative to a zero-coefficient of thermal expansion carbon fiber frame and has demonstrated that the three BPMs behave as a rigid-body to less than 5 nm. To date, we have demonstrated a BPM resolution of less than 20 nm over a dynamic range of +/- 20 microns.

  8. Emission vs Fermi coordinates: applications to relativistic positioning systems

    E-Print Network [OSTI]

    Donato Bini; Andrea Geralico; Matteo Luca Ruggiero; Angelo Tartaglia

    2008-09-05T23:59:59.000Z

    A 4-dimensional relativistic positioning system for a general spacetime is constructed by using the so called "emission coordinates". The results apply in a small region around the world line of an accelerated observer carrying a Fermi triad, as described by the Fermi metric. In the case of a Schwarzschild spacetime modeling the gravitational field around the Earth and an observer at rest at a fixed spacetime point, these coordinates realize a relativistic positioning system alternative to the current GPS system. The latter is indeed essentially conceived as Newtonian, so that it necessarily needs taking into account at least the most important relativistic effects through Post-Newtonian corrections to work properly. Previous results concerning emission coordinates in flat spacetime are thus extended to this more general situation. Furthermore, the mapping between spacetime coordinates and emission coordinates is completely determined by means of the world function, which in the case of a Fermi metric can be explicitly obtained.

  9. Global Warming Systemically Caused Hurricane Sandy

    E-Print Network [OSTI]

    Lakoff, George

    2012-01-01T23:59:59.000Z

    Warming Systemically Caused Hurricane Sandy by George Lakoffsystemically caused Hurricane Sandy -- and the Midwestenormous energy and size of Hurricane Sandy, as well as the

  10. A Global Land System Framework for Integrated Climate-Change Assessments

    E-Print Network [OSTI]

    Schlosser, C. Adam

    Land ecosystems play a major role in the global cycles of energy, water, carbon and nutrients. A Global Land System (GLS) framework has been developed for the Integrated Global Systems Model Version 2 (IGSM2) to simulate ...

  11. Lateral position detection and control for friction stir systems

    DOE Patents [OSTI]

    Fleming, Paul (Boulder, CO); Lammlein, David (Houston, TX); Cook, George E. (Brentwood, TN); Wilkes, Don Mitchell (Nashville, TN); Strauss, Alvin M. (Nashville, TN); Delapp, David (Ashland City, TN); Hartman, Daniel A. (Santa Fe, NM)

    2010-12-14T23:59:59.000Z

    A friction stir system for processing at least a first workpiece includes a spindle actuator coupled to a rotary tool comprising a rotating member for contacting and processing the first workpiece. A detection system is provided for obtaining information related to a lateral alignment of the rotating member. The detection system comprises at least one sensor for measuring a force experienced by the rotary tool or a parameter related to the force experienced by the rotary tool during processing, wherein the sensor provides sensor signals. A signal processing system is coupled to receive and analyze the sensor signals and determine a lateral alignment of the rotating member relative to a selected lateral position, a selected path, or a direction to decrease a lateral distance relative to the selected lateral position or selected path. In one embodiment, the friction stir system can be embodied as a closed loop tracking system, such as a robot-based tracked friction stir welding (FSW) or friction stir processing (FSP) system.

  12. Global RNA Half-Life Analysis in Escherichia coli Reveals Positional Patterns of Transcript Degradation

    E-Print Network [OSTI]

    Church, George M.

    Degradation Douglas W. Selinger,1,3 Rini Mukherjee Saxena,2,3 Kevin J. Cheung,1 George M. Church,1 and Carsten to study global RNA degradation in wild-type Escherichia coli MG1655. RNA chemical half-lives were measured of operons degrade, on average, more quickly than the rest of the transcript, with stability increasing

  13. ExxonMobil Global Energy Management System

    E-Print Network [OSTI]

    Roberto, F.

    of our refineries and chemical plants. The system builds on international best practices and benchmarking to identify energy efficiencies. Launched in 2000, it utilizes a common methodology to identify performance gaps, implement closure plans, sustain...

  14. Sustainability. Systems integration for global sustainability.

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    study of the energy-water nexus. Sustainability 2, 945962 (sustainability studies have fo- cused on flows of real material and energysustainability have been place- based even if they look at coupled systems [for example, the energy-

  15. Position paper -- Tank ventilation system design air flow rates

    SciTech Connect (OSTI)

    Goolsby, G.K.

    1995-01-04T23:59:59.000Z

    The purpose of this paper is to document a project position on required ventilation system design air flow rates for the waste storage tanks currently being designed by project W-236A, the Multi-Function Waste Tank Facility (MWTF). The Title 1 design primary tank heat removal system consists of two systems: a primary tank vapor space ventilation system; and an annulus ventilation system. At the conclusion of Title 1 design, air flow rates for the primary and annulus ventilation systems were 960 scfm and 4,400 scfm, respectively, per tank. These design flow rates were capable of removing 1,250,000 Btu/hr from each tank. However, recently completed and ongoing studies have resulted in a design change to reduce the extreme case heat load to 700,000 Btu/hr. This revision of the extreme case heat load, coupled with results of scale model evaporative testing performed by WHC Thermal Hydraulics, allow for a reduction of the design air flow rates for both primary and annulus ventilation systems. Based on the preceding discussion, ICF Kaiser Hanford Co. concludes that the design should incorporate the following design air flow rates: Primary ventilation system--500 scfm maximum and Annulus ventilation system--1,100 scfm maximum. In addition, the minimum air flow rates in the primary and annulus ventilation systems will be investigated during Title 2 design. The results of the Title 2 investigation will determine the range of available temperature control using variable air flows to both ventilation systems.

  16. Ris Energy Report 5 Global drivers for transformation of energy systems 3 Global drivers for transformation of energy

    E-Print Network [OSTI]

    of greenhouse gases has brought a new political rationale for the development of more climate-friendly energy in the global energy market of rapidly-expanding national economies, notably China and India. TogetherRis Energy Report 5 Global drivers for transformation of energy systems 3 Global drivers

  17. The UN Standing Committee on Nutrition (UNSCN) offers a new internship position. Are you interested in experiencing nutrition at a global level while working in Geneva with a dynamic

    E-Print Network [OSTI]

    Mullins, Dyche

    The UN Standing Committee on Nutrition (UNSCN) offers a new internship position. Are you interested in experiencing nutrition at a global level while working in Geneva with a dynamic and international team related field) who is seeking work experience within the UN system. The main focus of this internship

  18. Cavity Beam Position Monitor System for ATF2

    SciTech Connect (OSTI)

    Boogert, Stewart; /Oxford U., JAI; Boorman, Gary; /Oxford U., JAI; Swinson, Christina; /Oxford U., JAI; Ainsworth, Robert; /Royal Holloway, U. of London; Molloy, Stephen; /Royal Holloway, U. of London; Aryshev, Alexander; /KEK, Tsukuba; Honda, Yosuke; /KEK, Tsukuba; Tauchi, Toshiaki; /KEK, Tsukuba; Terunuma, Nobuhiro; /KEK, Tsukuba; Urakawa, Junji; /KEK, Tsukuba; Frisch, Josef; /SLAC; May, Justin; /SLAC; McCormick, Douglas; /SLAC; Nelson, Janice; /SLAC; Smith, Tonee; /SLAC; White, Glen; /SLAC; Woodley, Mark; /SLAC; Heo, Ae-young; /Kyungpook Natl. U.; Kim, Eun-San; /Kyungpook Natl. U.; Kim, Hyoung-Suk; /Kyungpook Natl. U.; Kim, Youngim; /Kyungpook Natl. U. /University Coll. London /Kyungpook Natl. U. /Fermilab /Pohang Accelerator Lab.

    2012-07-09T23:59:59.000Z

    The Accelerator Test Facility 2 (ATF2) in KEK, Japan, is a prototype scaled demonstrator system for the final focus required for a future high energy lepton linear collider. The ATF2 beam-line is instrumented with a total of 38 C and S band resonant cavity beam position monitors (CBPM) with associated mixer electronics and digitizers. The current status of the BPM system is described, with a focus on operational techniques and performance. The ATF2 C-band system is performing well, with individual CBPM resolution approaching or at the design resolution of 50 nm. The changes in the CBPM calibration observed over three weeks can probably be attributed to thermal effects on the mixer electronics systems. The CW calibration tone power will be upgraded to monitor changes in the electronics gain and phase. The four S-band CBPMs are still to be investigated, the main problem associated with these cavities is a large cross coupling between the x and y ports. This combined with the large design dispersion in that degion makes the digital signal processing difficult, although various techniques exist to determine the cavity parameters and use these coupled signals for beam position determination.

  19. Using Drama for Learning to Foster Positive Attitudes and Increase Motivation: Global Simulation in French Second Language Classes

    E-Print Network [OSTI]

    Dicks, Joseph E; Le Blanc, Barbara

    2009-01-01T23:59:59.000Z

    Drama for Learning and Global Simulation Although differentdrama for learning, and specifically global simulation, arefor learning and, in particular, global simulation. Thus,

  20. Global Logistics Systems Adapted from an Affiliates seminar

    E-Print Network [OSTI]

    Brock, David

    Global Logistics Systems Adapted from an Affiliates seminar held at MIT on March 14-15, 2001 #12 to be entered more than 10 times #12;Edmund W. Schuster Director, MIT Affiliates Program in Logistics The New vary from country to country? Alliances: What are the trends in logistics alliances? U

  1. Global Failure Criteria for SOFC Positive/Electrolyte/Negative (PEN) Structure

    SciTech Connect (OSTI)

    Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.; Qu, Jianmin

    2007-04-01T23:59:59.000Z

    Due to the mismatch of thermal expansion coefficients (TEC) of the various layer materials in SOFC, the internal stresses are unavoidable under temperature differential. In order to create the reliable cell and stack of solid oxide fuel cell (SOFC), it is necessary to develop a failure criterion for SOFC PEN structures for the initial failures occurred during cell/stack assembly. In this paper, a global failure criterion is developed for the initial design against mechanical failure of the PEN structure in high temperature SOFCs. The relationship of the critical energy release rate and critical curvature and maximum displacement of the warpage of the cells caused by the temperature differential is established so that the failure reliability of SOFC PEN structures may be determined by the measurement of the curvature and displacement of the warpaged cells.

  2. Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...

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

    Systems-Level Analysis of Hfq and SmpB Deletion Mutants in Salmonella: Implications for Virulence and Global Protein Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants...

  3. Experimental results on the design for the APS PID global orbit control system.

    SciTech Connect (OSTI)

    Chung, Y.; Kirchman, J. A.

    1997-12-05T23:59:59.000Z

    The Advanced Photon Source third generation synchrotrons light source needs a stabilized particle beam position to produce high brightness and low emittance radiation. Global orbit correction control is introduced and is utilized to satisfy the demanding needs of the accelerator. This paper presents the experimental results for determining an effective and optimal controller to meet the global orbit correction requirements. These requirements include frequency/time domain demands consisting of vibrational noise attenuation, limiting of controller gains for stability and improving the system time response. Experiments were conducted with a digital signal processor implementing various PID sets to make comparisons between simulations and experiments. Measurements at these PID sets supported the results of software simulation.

  4. A wire scanner system for characterizing the BNL energy recovery LINAC beam position monitor system

    SciTech Connect (OSTI)

    Michnoff R.; Biscardi, C.; Cerniglia, P.; Degen, C.; Gassner, D.; Hoff, L.; Hulsart, R.

    2012-04-15T23:59:59.000Z

    A stepper motor controlled wire scanner system has recently been modified to support testing of the Brookhaven National Laboratory (BNL) Collider-Accelerator department's Energy Recovery Linac (ERL) beam position monitor (BPM) system. The ERL BPM consists of four 9.33 mm diameter buttons mounted at 90 degree spacing in a cube with 1.875 inch inside diameter. The buttons were designed by BNL and fabricated by Times Microwave Systems. Libera brilliance single pass BPM electronic modules with 700 MHz bandpass filter, manufactured by Instrumentation Technologies, will be used to measure the transverse beam positions at 14 locations around the ERL. The wire scanner assembly provides the ability to measure the BPM button response to a pulsed wire, and evaluate and calibrate the Libera position measurement electronics. A description of the wire scanner system and test result data will be presented.

  5. Global Trade Policy Development in a Two-Track System

    E-Print Network [OSTI]

    Crump, Larry

    2006-01-01T23:59:59.000Z

    publication 9 March 2006 global trade policy development inbetween nations that reduce trade barriers on a reciprocalmight enhance the global trade policy develop- ment process

  6. Global Error bounds for systems of convex polynomials over ...

    E-Print Network [OSTI]

    2011-11-11T23:59:59.000Z

    This paper is devoted to study the Lipschitzian/Holderian type global error ...... set is not neccessarily compact, we obtain the Hlder global error bound result.

  7. Positioning Security from electronic warfare

    E-Print Network [OSTI]

    Kuhn, Markus

    Positioning Security from electronic warfare to cheating RFID and road-tax systems Markus Kuhn;Military positioning-security concerns Electronic warfare is primarily about denying or falsifying location of the importance of global positioning security has led to the military discipline of "navigation warfare". 5 #12

  8. TMA Global Wind Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <Maintained By FaultSunpodsSweetwaterTMA Global Wind Energy Systems

  9. Performance of a High Resolution Cavity Beam Position Monitor System

    SciTech Connect (OSTI)

    Walston, S; Boogert, S; Chung, C; Fitsos, P; Frisch, J; Gronberg, J; Hayano, H; Honda, Y; Kolomensky, Y; Lyapin, A; Malton, S; May, J; McCormick, D; Meller, R; Miller, D; Orimoto, T; Ross, M; Slater, M; Smith, S; Smith, T; Terunuma, N; Thomson, M; Urakawa, J; Vogel, V; Ward, D; White, G

    2006-12-18T23:59:59.000Z

    It has been estimated that an RF cavity Beam Position Monitor (BPM) could provide a position measurement resolution of less than one nanometer. We have developed a high resolution cavity BPM and associated electronics. A triplet comprised of these BPMs was installed in the extraction line of the Accelerator Test Facility (ATF) at the High Energy Accelerator Research Organization (KEK) for testing with its ultra-low emittance beam. The three BPMs were each rigidly mounted inside an alignment frame on six variable-length struts which could be used to move the BPMs in position and angle. We have developed novel methods for extracting the position and tilt information from the BPM signals including a robust calibration algorithm which is immune to beam jitter. To date, we have demonstrated a position resolution of 15.6 nm and a tilt resolution of 2.1 {micro}rad over a dynamic range of approximately {+-} 20 {micro}m.

  10. Performance of a High Resolution Cavity Beam Position Monitor System

    SciTech Connect (OSTI)

    Walston, Sean; Boogert, Stewart; Chung, Carl; Fitsos, Joe; Frisch, Joe; Gronberg, Jeff; Hayano, Hitoshi; Honda, Yosuke; Kolomensky, Yury; Lyapin, Alexey; Malton, Stephen; May, Justin; McCormick, Douglas; Meller, Robert; Miller, David John; Orimoto, Toyoko; Ross, Marc; Slater, Mark; Smith, Steve; Smith, Tonee; Terunuma, Nobuhiro; /Fermilab /UC,

    2007-06-08T23:59:59.000Z

    It has been estimated that an RF cavity Beam Position Monitor (BPM) could provide a position measurement resolution of less than one nanometer. We have developed a high resolution cavity BPM and associated electronics. A triplet comprised of these BPMs was installed in the extraction line of the Accelerator Test Facility (ATF) at the High Energy Accelerator Research Organization (KEK) for testing with its ultra-low emittance beam. The three BPMs were each rigidly mounted inside an alignment frame on six variable-length struts which could be used to move the BPMs in position and angle. We have developed novel methods for extracting the position and tilt information from the BPM signals including a robust calibration algorithm which is immune to beam jitter. To date, we have demonstrated a position resolution of 15.6 nm and a tilt resolution of 2.1 {mu}rad over a dynamic range of approximately {+-} 20 {mu}m.

  11. MIT Integrated Global System Model (IGSM) Version 2: Model Description and Baseline Evaluation

    E-Print Network [OSTI]

    Sokolov, Andrei P.

    The MIT Integrated Global System Model (IGSM) is designed for analyzing the global environmental changes that may result from anthropogenic causes, quantifying the uncertainties associated with the projected changes, and ...

  12. Position sensitive solid-state photomultipliers, systems and methods

    DOE Patents [OSTI]

    Shah, Kanai S; Christian, James; Stapels, Christopher; Dokhale, Purushottam; McClish, Mickel

    2014-11-11T23:59:59.000Z

    An integrated silicon solid state photomultiplier (SSPM) device includes a pixel unit including an array of more than 2.times.2 p-n photodiodes on a common substrate, a signal division network electrically connected to each photodiode, where the signal division network includes four output connections, a signal output measurement unit, a processing unit configured to identify the photodiode generating a signal or a center of mass of photodiodes generating a signal, and a global receiving unit.

  13. PT-symmetric quantum systems with positive P

    E-Print Network [OSTI]

    Miloslav Znojil; Hendrik B. Geyer

    2012-01-24T23:59:59.000Z

    A new version of PT-symmetric quantum theory is proposed and illustrated by an N-site-lattice Legendre oscillator. The essence of the innovation lies in the replacement of parity P (serving as an indefinite metric in an auxiliary Krein space) by its non-involutory alternative P(positive)=Q>0 playing the role of a positive-definite nontrivial metric in an auxiliary, redundant, unphysical Hilbert space. It is shown that the QT-symmetry of this form remains appealing and technically useful.

  14. Posters Toward an Operational Water Vapor Remote Sensing System Using the Global Positioning System

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible forPortsmouth/Paducah Project Office PressPostdoctoraldecadal observations719711731373

  15. Lateral position detection and control for friction stir systems

    DOE Patents [OSTI]

    Fleming, Paul; Lammlein, David H.; Cook, George E.; Wilkes, Don Mitchell; Strauss, Alvin M.; Delapp, David R.; Hartman, Daniel A.

    2012-06-05T23:59:59.000Z

    An apparatus and computer program are disclosed for processing at least one workpiece using a rotary tool with rotating member for contacting and processing the workpiece. The methods include oscillating the rotary tool laterally with respect to a selected propagation path for the rotating member with respect to the workpiece to define an oscillation path for the rotating member. The methods further include obtaining force signals or parameters related to the force experienced by the rotary tool at least while the rotating member is disposed at the extremes of the oscillation. The force signals or parameters associated with the extremes can then be analyzed to determine a lateral position of the selected path with respect to a target path and a lateral offset value can be determined based on the lateral position. The lateral distance between the selected path and the target path can be decreased based on the lateral offset value.

  16. Lateral position detection and control for friction stir systems

    SciTech Connect (OSTI)

    Fleming, Paul (Boulder, CO); Lammlein, David H. (Houston, TX); Cook, George E. (Brentwood, TN); Wilkes, Don Mitchell (Nashville, TN); Strauss, Alvin M. (Nashville, TN); Delapp, David R. (Ashland City, TN); Hartman, Daniel A. (Fairhope, AL)

    2011-11-08T23:59:59.000Z

    Friction stir methods are disclosed for processing at least one workpiece using a rotary tool with rotating member for contacting and processing the workpiece. The methods include oscillating the rotary tool laterally with respect to a selected propagation path for the rotating member with respect to the workpiece to define an oscillation path for the rotating member. The methods further include obtaining force signals or parameters related to the force experienced by the rotary tool at least while the rotating member is disposed at the extremes of the oscillation. The force signals or parameters associated with the extremes can then be analyzed to determine a lateral position of the selected path with respect to a target path and a lateral offset value can be determined based on the lateral position. The lateral distance between the selected path and the target path can be decreased based on the lateral offset value.

  17. Demo Abstract: The SpiderBat Ultrasound Positioning System Georg Oberholzer, Philipp Sommer, Roger Wattenhofer

    E-Print Network [OSTI]

    Demo Abstract: The SpiderBat Ultrasound Positioning System Georg Oberholzer, Philipp Sommer, Roger Wattenhofer Computer Engineering and Networks Laboratory ETH Zurich, Switzerland sommer

  18. First numerical evidence of global Arnold diffusion in quasi--integrable systems

    E-Print Network [OSTI]

    Massimiliano Guzzo; Elena Lega; Claude Froeschle'

    2004-07-26T23:59:59.000Z

    We provide numerical evidence of global diffusion occurring in slightly perturbed integrable Hamiltonian systems and symplectic maps. We show that even if a system is sufficiently close to be integrable, global diffusion occurs on a set with peculiar topology, the so--called Arnold web, and is qualitatively different from Chirikov diffusion, occurring in more perturbed systems.

  19. Method and system for ultra-precision positioning

    DOE Patents [OSTI]

    Montesanti, Richard C.; Locke, Stanley F.; Thompson, Samuel L.

    2005-01-11T23:59:59.000Z

    An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may be raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.

  20. A two axis mirror positioning system with quadrature encoder output

    E-Print Network [OSTI]

    Woodruff, Rick Bryan

    2007-01-01T23:59:59.000Z

    This project was conducted in support of a solar concentrating technology that required the design and construction of a low cost, two axis rotational drive system with a resolution of one degree or better. The scope of ...

  1. Method and apparatus for animal positioning in imaging systems

    DOE Patents [OSTI]

    Hadjioannou, Arion-Xenofon; Stout, David B.; Silverman, Robert W.

    2013-01-01T23:59:59.000Z

    An apparatus for imaging an animal includes a first mounting surface, a bed sized to support the animal and releasably secured to or integral with the first mounting surface. The apparatus also includes a plurality of straps, each having a first end in a fixed position relative to the bed and a second end for tightening around a limb of the animal. A method for in-vivo imaging of an animal includes providing an animal that has limbs, providing a first mounting surface, and providing a bed removably secured to or integral with the mounting surface and sized to support the animal as well as being coupled to a plurality of straps. The method also includes placing the animal on the bed between the plurality of straps and tightening at least two of the plurality of straps around at least two of the limbs such that the animal is substantially secured in place relative to the bed.

  2. Control of a Hydraulically-Powered Positioning System Project Report, Part 2

    E-Print Network [OSTI]

    Control of a Hydraulically-Powered Positioning System Project Report, Part 2 Written by Thomas Johnson ME6401: Linear Controls Submitted to Dr. Wayne Book 10/25/06 #12;SYSTEM MODEL AND PARAMETERS cylinder in order to control the position of an attached mass (m=200 kg). The circuit is controlled

  3. Radiological Control Technical Position, Regarding Use of Newer Dose Terms in the Occurrence Reporting and Processing System

    Broader source: Energy.gov [DOE]

    Technical Position Clarifying Dose Reporting in the Occurrence Reporting and Processing System - RCTP-09-03

  4. Postdoc position: Hybrid Systems Theorem Proving Carnegie Mellon University, Computer Science Department

    E-Print Network [OSTI]

    Sandholm, Tuomas W.

    Postdoc position: Hybrid Systems Theorem Proving Carnegie Mellon University, Computer Science is to develop next-generation verification techniques for cyber- physical systems and hybrid systems. Our prover KeYmaera and have found application in the verification of cars, aircraft, railway systems

  5. DYNAMIC SECURITY ANALYSIS OF ELECTRIC POWER SYSTEMS: PASSIVITY-BASED APPROACH AND POSITIVE INVARIANCE APPROACH

    E-Print Network [OSTI]

    Shen, Jinglai

    DYNAMIC SECURITY ANALYSIS OF ELECTRIC POWER SYSTEMS: PASSIVITY-BASED APPROACH AND POSITIVE in modern power system opera- tion. With the aid of analytic tools for large-scale and hybrid systems, this paper proposes two new safety verification methods for power systems. The first method is based

  6. DESIGN OF HYBRID MARINE CONTROL SYSTEMS FOR DYNAMIC POSITIONING IN EXTREME SEAS

    E-Print Network [OSTI]

    Nrvg, Kjetil

    1 3-Jun-13 DESIGN OF HYBRID MARINE CONTROL SYSTEMS FOR DYNAMIC POSITIONING IN EXTREME SEAS SYSTEM EMERGENCY SHUTDOWN FIRE & GAS ENERGY MANAGEMENT SYSTEM AZIPOD INFORMATION MANAGEMENT REMOTE Introduction Challenges #12;3-Jun-13 7 Introduction Hybrid concept motivation Design of control system

  7. Positive contraction mappings for classical and quantum Schrodinger systems

    E-Print Network [OSTI]

    Tryphon T. Georgiou; Michele Pavon

    2014-10-07T23:59:59.000Z

    The classical Schrodinger bridge seeks the most likely probability law for a diffusion process, in path space, that matches marginals at two end points in time; the likelihood is quantified by the relative entropy between the sought law and a prior, and the law dictates a controlled path that abides by the specified marginals. Schrodinger proved that the optimal steering of the density between the two end points is effected by a multiplicative functional transformation of the prior; this transformation represents an automorphism on the space of probability measures and has since been studied by Fortet, Beurling and others. A similar question can be raised for processes evolving in a discrete time and space as well as for processes defined over non-commutative probability spaces. The present paper builds on earlier work by Pavon and Ticozzi and begins with the problem of steering a Markov chain between given marginals. Our approach is based on the Hilbert metric and leads to an alternative proof which, however, is constructive. More specifically, we show that the solution to the Schrodinger bridge is provided by the fixed point of a contractive map. We approach in a similar manner the steering of a quantum system across a quantum channel. We are able to establish existence of quantum transitions that are multiplicative functional transformations of a given Kraus map, but only for the case of uniform marginals. As in the Markov chain case, and for uniform density matrices, the solution of the quantum bridge can be constructed from the fixed point of a certain contractive map. For arbitrary marginal densities, extensive numerical simulations indicate that iteration of a similar map leads to fixed points from which we can construct a quantum bridge. For this general case, however, a proof of convergence remains elusive.

  8. Dynamic Positioning System as Dynamic Energy Storage on Diesel-Electric Ships

    E-Print Network [OSTI]

    Johansen, Tor Arne

    1 Dynamic Positioning System as Dynamic Energy Storage on Diesel-Electric Ships Tor A. Johansen in order to implement energy storage in the kinetic and potential energy of the ship motion using the DP in order to relate the dynamic energy storage capacity to the maximum allowed ship position deviation

  9. Enforcing Safety Requirements for Industrial Automation Systems at Runtime Position Paper

    E-Print Network [OSTI]

    Enforcing Safety Requirements for Industrial Automation Systems at Runtime Position Paper Wikan {firstname.lastname}@tuwien.ac.at Abstract--Current industrial automation systems are becom- ing more safety requirements of industrial automation systems may lead to high risks if not addressed properly

  10. Discrete-time mode switching control with application to a PMSM position servo system

    E-Print Network [OSTI]

    Benmei, Chen

    Discrete-time mode switching control with application to a PMSM position servo system Guoyang Cheng control Servo systems Permanent magnet synchronous motor (PMSM) Observer Nonlinearities a b s t r a c results on a permanent magnet synchronous motor (PMSM) servo system verify that the proposed control

  11. An evolutionary annealing-simplex algorithm for global optimisation of water resource systems

    E-Print Network [OSTI]

    Neumaier, Arnold

    An evolutionary annealing-simplex algorithm for global optimisation of water resource systems The evolutionary annealing-simplex algorithm is a probabilistic heuristic global optimisation technique that joins concept is based on a controlled random search scheme, where a generalised downhill simplex methodology

  12. IEEE TRANSACTIONS ON POWER SYSTEMS 1 On the computational studies of deterministic global

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    optimization of head dependent short-term hydro scheduling Ricardo M. Lima, Marian G. Marcovecchio, Augusto Q scheduling, MINLP, global optimization. NOMENCLATURE A. Indices and sets i,k,I Hydro plants IC PairsIEEE TRANSACTIONS ON POWER SYSTEMS 1 On the computational studies of deterministic global

  13. Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic eects

    E-Print Network [OSTI]

    Seitzinger, Sybil

    Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic, are increasing due to human activities. Our analysis suggests that a third of global anthropogenic N2O emission the remainder. Over 80% of aquatic anthropogenic N2O emissions are from the Northern Hemisphere mid

  14. BERNHARD WEHRLI he global river system acts as a gigantic

    E-Print Network [OSTI]

    Wehrli, Bernhard

    and dissolved substances, but this pipeline is leaking carbon dioxide to the atmosphere at surprisingly high a flux of this greenhouse gas that is larger than previ- ously estimated and dominated by hotspot regions stations that measure the global distribution and variability of atmospheric CO2 concen- trations. This top

  15. Background: Global Warming, 2009 1. Unequivocally, the climate is warming. Natural systems are affected.

    E-Print Network [OSTI]

    Minnesota, University of

    ." #12;Reducing Greenhouse Gas Emissions from Transportation Sources in Minnesota A Study gas (GHG) emissions from Minnesota's transportation sector. #12;Research Study Team UniversityBackground: Global Warming, 2009 1. Unequivocally, the climate is warming. Natural systems

  16. Clustering as a prerequisite for chimera states in globally coupled systems

    E-Print Network [OSTI]

    Lennart Schmidt; Katharina Krischer

    2015-02-20T23:59:59.000Z

    The coexistence of coherently and incoherently oscillating parts in a system of identical oscillators with symmetrical coupling, i.e., a chimera state, is even observable with uniform global coupling. We address the question of the prerequisites for these states to occur in globally coupled systems. By analyzing two different types of chimera states found for nonlinear global coupling, we show that a clustering mechanism to split the ensemble into two groups is needed as a first step. In fact, the chimera states inherit properties from the cluster states in which they originate. Remarkably, they can exist in parameter space between cluster and chaotic states, as well as between cluster and synchronized states.

  17. Faculty Position in Smart-Grid Technologies and Power Systems Department of Electronics

    E-Print Network [OSTI]

    Faculty Position in Smart-Grid Technologies and Power Systems Department of Electronics Carleton-track) appointment in the area of smart grid technology and power systems at the rank of Assistant, Associate or Full with an electrical power background to complement our existing strengths and build the stream of "smart technologies

  18. The Evolutionary Systems Biology Team Synthetic Biology/Citizen Science Post-doctoral position

    E-Print Network [OSTI]

    The Evolutionary Systems Biology Team Synthetic Biology/Citizen Science Post-doctoral position We in citizen science projects.The post-doc will join the extended CRI lab that includes synthetic and systems-sourcing, DIY approaches and gamification as part of a new European- funded project, Citizen CyberLab - a three

  19. System Optimization - The Global Approach to HVAC Control

    E-Print Network [OSTI]

    Thielman, D. E.

    1984-01-01T23:59:59.000Z

    System Optimization is a new approach to HVAC control as implemented by Energy Management Control Systems. System Optimization is defined as electronic building control strategies which treat a building's HVAC components as a complete energy...

  20. Control system to reduce the effects of friction in drive trains of continuous-path-positioning systems. [Patent application

    DOE Patents [OSTI]

    Green, W.L.

    1980-12-01T23:59:59.000Z

    An improved continuous-path-positioning servo-control system is provided for reducing the effects of friction arising at very low cutting speeds in the drive trains of numerically controlled cutting machines, and the like. The improvement comprises a feed forward network for altering the gain of the servo-control loop at low positioning velocities to prevent stick-slip movement of the cutting tool holder being positioned by the control system. The feed forward network shunts conventional lag-compensators in the control loop, or loops, so that the error signal used for positioning varies linearly when the value is small, but being limited for larger values. Thus, at higher positioning speeds there is little effect of the added component upon the control being achieved.

  1. U.S. Department of Energy Best Practices Workshop onFile Systems & Archives San Francisco, CA September 26-27, 2011 Position Paper

    SciTech Connect (OSTI)

    Hedges, R M

    2011-09-01T23:59:59.000Z

    This position paper discusses issues of usability of the large parallel file systems in the Livermore Computing Center. The primary uses of these file systems are for storage and access of data that is created during the course of a simulation running on an LC system. The Livermore Computing Center has multiple, globally mounted parallel file systems in each of its computing environments. The single biggest issue of file system usability that we have encountered through the years is to maintain continuous file system responsiveness. Given the back end storage hardware that our file systems are provisioned with, it is easily possible for a particularly I/O intensive application or one with particularly inefficiently coded I/O operations to bring the file system to an apparent halt. The practice that we will be addressing is one of having an ability to indentify, diagnose, analyze and optimize the I/O quickly and effectively.

  2. Linear motor drive system for continuous-path closed-loop position control of an object

    DOE Patents [OSTI]

    Barkman, William E. (Oak Ridge, TN)

    1980-01-01T23:59:59.000Z

    A precision numerical controlled servo-positioning system is provided for continuous closed-loop position control of a machine slide or platform driven by a linear-induction motor. The system utilizes filtered velocity feedback to provide system stability required to operate with a system gain of 100 inches/minute/0.001 inch of following error. The filtered velocity feedback signal is derived from the position output signals of a laser interferometer utilized to monitor the movement of the slide. Air-bearing slides mounted to a stable support are utilized to minimize friction and small irregularities in the slideway which would tend to introduce positioning errors. A microprocessor is programmed to read command and feedback information and converts this information into the system following error signal. This error signal is summed with the negative filtered velocity feedback signal at the input of a servo amplifier whose output serves as the drive power signal to the linear motor position control coil.

  3. Global Small Solutions of the Vlasov-Maxwell System in the Absence of Incoming Radiation

    E-Print Network [OSTI]

    Simone Calogero

    2004-11-16T23:59:59.000Z

    We consider a modified version of the Vlasov-Maxwell system in which the usual Maxwell fields are replaced by their retarded parts. We show that solutions of this modified system exist globally for a small number of particles and that they describe a system without incoming radiation

  4. A software package for the graphical simulation of the Global Positioning System's satellite orbits

    E-Print Network [OSTI]

    Martinez-Lopez, Eugenio

    1981-01-01T23:59:59.000Z

    Arguments for latitude and longi. tude ch. . nges respectively 3. Linea" projection of the flight arc. All these linear projections (chords) of the angular displacements will form a triangular plane that will ease the calculation for initial...

  5. Using reference frames and the Global Positioning System (GPS) to produce control networks for spatial data

    E-Print Network [OSTI]

    Naismith, James Mozeney

    1998-01-01T23:59:59.000Z

    . Accuracy is the closeness of an estimated value to a standard or accepted value. Accuracy cannot be determined solely from measured values. A standard or accepted value must be available from another source (Wolf and Brinker 1994, 24). In order to assure... Rules of Procedures and Practices. For monuments set within the corporate limits of any city, the precision is listed as 1:10, 000 + 0. 10 feet (Texas Board of Professional Land Surveying 1997). 10 Digital Orthophotos are a new source of useful...

  6. A Biological Global Positioning System: Considerations for Tracking Stem Cell Behaviors in the Whole Body

    E-Print Network [OSTI]

    Li, Shengwen Calvin; Tachiki, Lisa May; Luo, Jane; Dethlefs, Brent A.; Chen, Zhongping; Loudon, William G.

    2010-01-01T23:59:59.000Z

    resolve morphology. Using PET and CT fused images, Love etM. , Rispler, S. , et al. (2007). PET/CT quantitation of theTo date, most clinical PET-CT studies have used radioactive

  7. Environmental supportiveness for physical activity in English schoolchildren: a study using Global Positioning Systems

    E-Print Network [OSTI]

    Jones, Andrew P; Coombes, Emma G; Griffin, Simon J; van Sluijs, Esther M F

    2009-07-17T23:59:59.000Z

    provides a description of the characteris- tics of the subsample. The children wore the monitors for similar lengths of time (p = 0.112), with boys wearing them for an average of 11.1 (SD 2.2) hours per day, and girls 10.0 (SD 3.2) hours. Overall... activity data on the sample Boys (n = 47) Girls (n = 53) Total (n = 100) SES: parental education (%) - GCSE or lower 34.7 24.5 29.5 - Up to A level 43.7 32.7 37.9 - Higher education 21.6 42.8 32.6 Home location (%) - Urban (>10K) 46.8 47.2 47.0 - Town...

  8. Offered: Offered: Position(s): Position(s)

    E-Print Network [OSTI]

    New Hampshire, University of

    Company: Industry: Website: Majors: Offered: Offered: Position(s): Position(s): Description the future for streamlined operations. B2W Software solutions effectively leverage the latest technologies into a unified system approach for estimating and bidding, field tracking and analysis, resource planning

  9. OpenEI Community - Global Microturbine Systems Market

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellenceOfficeOhio: Energy Resourcesen)5/0 en Global8/0 en

  10. Opportunities for Global Optimization: Breaking the Boundaries Across System Components

    E-Print Network [OSTI]

    Morancho, Enric

    systems), therefore this approach does not produce a system that fits well the requirements for this kind optimizations can be applied. Linux is a monolithic kernel which runs entirely in privileged mode

  11. GLOBAL SECURITY SYSTEMGLOBAL SECURITY SYSTEM FOR CONTAINERIZED COMMERCEFOR CONTAINERIZED COMMERCE

    E-Print Network [OSTI]

    Austin, Mark

    and mapped. ­ tools such as LTSA will be used to model the system and verify whether the specifications

  12. Automated measurement system employing eddy currents to adjust probe position and determine metal hardness

    DOE Patents [OSTI]

    Prince, J.M.; Dodson, M.G.; Lechelt, W.M.

    1989-07-18T23:59:59.000Z

    A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis. 14 figs.

  13. Automated measurement system employing eddy currents to adjust probe position and determine metal hardness

    DOE Patents [OSTI]

    Prince, James M. (Kennewick, WA); Dodson, Michael G. (Richland, WA); Lechelt, Wayne M. (Benton City, WA)

    1989-01-01T23:59:59.000Z

    A system for measuring the hardness of cartridge cases employs an eddy current probe for inducing and sensing eddy currents in each cartridge case. A first component of the sensed signal is utilized in a closed loop system for accurately positioning the probe relative to the cartridge case both in the lift off direction and in the tangential direction, and a second component of the sensed signal is employed as a measure of the hardness. The positioning and measurement are carried out under closed loop microprocessor control facilitating hardness testing on a production line basis.

  14. The global distribution of large subaerial distributary fluvial systems

    E-Print Network [OSTI]

    Gwynn, David Wilkinson

    2002-01-01T23:59:59.000Z

    to the area of the upstream drainage basin, but is related to the size of the downstream basin. This sample of systems occurs in a variety of climates and in two different geologic settings - foreland basins and half graben. The rivers on all systems...

  15. Complex Adaptive Systems of Systems (CASoS) engineering and foundations for global design.

    SciTech Connect (OSTI)

    Brodsky, Nancy S.; Finley, Patrick D.; Beyeler, Walter Eugene; Brown, Theresa Jean; Linebarger, John Michael; Moore, Thomas W.; Glass, Robert John, Jr.; Maffitt, S. Louise; Mitchell, Michael David; Ames, Arlo Leroy

    2012-01-01T23:59:59.000Z

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex ecological, sociological, economic and/or technical systems which must be recognized and reckoned with to design a secure future for the nation and the world. Design within CASoS requires the fostering of a new discipline, CASoS Engineering, and the building of capability to support it. Towards this primary objective, we created the Phoenix Pilot as a crucible from which systemization of the new discipline could emerge. Using a wide range of applications, Phoenix has begun building both theoretical foundations and capability for: the integration of Applications to continuously build common understanding and capability; a Framework for defining problems, designing and testing solutions, and actualizing these solutions within the CASoS of interest; and an engineering Environment required for 'the doing' of CASoS Engineering. In a secondary objective, we applied CASoS Engineering principles to begin to build a foundation for design in context of Global CASoS

  16. Systems/Circuits Eye-Position Signals in the Dorsal Visual System Are

    E-Print Network [OSTI]

    Krekelberg, Bart

    nonvisual signals related to the positions of the eyes in the orbit (for review, see Salinas and Sejnowski transformations, multisensory integration, and the maintenance of visual stability (for review, see Salinas

  17. GLOBAL OPTIMIZATION OF MULTIPHASE FLOW NETWORKS IN OIL AND GAS PRODUCTION SYSTEMS

    E-Print Network [OSTI]

    Johansen, Tor Arne

    1 GLOBAL OPTIMIZATION OF MULTIPHASE FLOW NETWORKS IN OIL AND GAS PRODUCTION SYSTEMS MSc. Hans in an oil production system is developed. Each well may be manipulated by injecting lift gas and adjusting in the maximum oil flow rate, water flow rate, liquid flow rate, and gas flow rate. The wells may also

  18. THE SECOND LAW OF THERMODYNAMICS AND THE GLOBAL CLIMATE SYSTEM: A REVIEW OF THE MAXIMUM

    E-Print Network [OSTI]

    Lorenz, Ralph D.

    to absorption of solar radiation in the climate system is found to be irrelevant to the maximized prop- erties from hot to cold places, thereby producing the kinetic energy of the fluid itself. His generalTHE SECOND LAW OF THERMODYNAMICS AND THE GLOBAL CLIMATE SYSTEM: A REVIEW OF THE MAXIMUM ENTROPY

  19. Estimation of global posteriors and forward-backward training of hybrid HMM/ANN systems.

    E-Print Network [OSTI]

    Hennebert, J; Ris, C; Bourlard, Herve; Renals, Steve; Morgan, Nelson

    1997-01-01T23:59:59.000Z

    The results of our research presented in this paper are two-fold. First, an estimation of global posteriors is formalized in the framework of hybrid HMM/ANN systems. It is shown that hybrid HMM/ANN systems, in which the ANN part estimates local...

  20. Global climate change is currently affecting many ecological systems and may have large impacts on agri-

    E-Print Network [OSTI]

    be crucial in the tropics, where most agriculture is in rain-fed systems and climate change has a potentially of Biological Sciences. Synergies between Agricultural Intensification and Climate Change Could CreateArticles Global climate change is currently affecting many ecological systems and may have large

  1. Behavioral/Systems/Cognitive Receptive Field Positions in Area MT during Slow Eye

    E-Print Network [OSTI]

    Krekelberg, Bart

    Behavioral/Systems/Cognitive Receptive Field Positions in Area MT during Slow Eye Movements Till S across eye movements. We first tested the hypothesis that motion signals are integrated by neurons whose receptive fields (RFs) do not move with the eye but stay fixed in the world. Specifically, we measured

  2. Computer Science Adjunct Faculty Position for Computer Networks and Database Systems

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Computer Science Adjunct Faculty Position for Computer Networks and Database Systems Connecticut College is seeking an adjunct professor (rank open) of computer science to teach Computer Networks (COM315 have a Masters or equivalent in Computer Science or related field. The catalog course descriptions

  3. ISO 50001: A Global Energy Management System Standard

    E-Print Network [OSTI]

    Chowdhury, N.

    2013-01-01T23:59:59.000Z

    ISO 50001:2011 provides benefits for any organization to establish a framework to manage and improve energy consumption. The framework of ISO 50001:2011 enables organizations to establish the systems and processes necessary to improve energy...

  4. Solar receiver heliostat reflector having a linear drive and position information system

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY)

    1980-01-01T23:59:59.000Z

    A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

  5. A GLOBAL ROAD SCENE ANALYSIS SYSTEM FOR AUTONOMOUS VEHICLES

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    to the hydraulic steering system ofthe car. To control such a model,a tech- nique of pole assignment embedded, Real time image processing, Vehicle modelling, Adaptive control. 1. HIGH SPEED VEHICLE GUIDANCE with an additional device connected to its steering sys- tem. This device is an input allowing a velocity control

  6. Global chassis control using braking and suspension systems P. Gaspar

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Poussot-Vassal , O. Sename , L. Dugard *Computer and Automation Research Institute, Hungary **Laboratoire active control mechanisms are applied in road vehicles to solve different control tasks, see e.g. [1,5,6,7]. As an example, the suspension system is the main tool to achieve comfort and road holding for a vehicle whilst

  7. GLOBAL SOLUTIONS TO QUASI-LINEAR HYPERBOLIC SYSTEMS OF VISCOELASTICITY

    E-Print Network [OSTI]

    Kawashima, Shuichi

    to the following nonlinear second order hyperbolic system: utt - n j=1 bj (xu)xj + n j,k=1 Kjk uxjxk + Lut = 0. (1-vector functions of v = (v1, . . . , vn) Rmn where vj Rm corresponds to uxj ; Kjk (t) are smooth m ? m real matrix functions of t 0 satisfying Kjk (t)T = Kkj (t) for each j, k and t; L is an m ? m real symmetric

  8. Charge transfer and in-cloud structure of large-charge-moment positive lightning strokes in a mesoscale convective system

    E-Print Network [OSTI]

    Cummer, Steven A.

    in a mesoscale convective system Gaopeng Lu,1 Steven A. Cummer,1 Jingbo Li,1 Feng Han,1 Richard J. Blakeslee,2 positive cloud-to-ground (+CG) strokes in a mesoscale convective system. Although no high altitude images of large-charge-moment positive lightning strokes in a mesoscale convective system, Geophys. Res. Lett., 36

  9. Method and system for controlling the position of a beam of light

    DOE Patents [OSTI]

    Steinkraus, Jr., Robert F. (San Francisco, CA); Johnson, Gary W. (Livermore, CA); Ruggiero, Anthony J. (Livermore, CA)

    2011-08-09T23:59:59.000Z

    An method and system for laser beam tracking and pointing is based on a conventional position sensing detector (PSD) or quadrant cell but with the use of amplitude-modulated light. A combination of logarithmic automatic gain control, filtering, and synchronous detection offers high angular precision with exceptional dynamic range and sensitivity, while maintaining wide bandwidth. Use of modulated light enables the tracking of multiple beams simultaneously through the use of different modulation frequencies. It also makes the system resistant to interfering light sources such as ambient light. Beam pointing is accomplished by feeding back errors in the measured beam position to a beam steering element, such as a steering mirror. Closed-loop tracking performance is superior to existing methods, especially under conditions of atmospheric scintillation.

  10. Prototype Radiation Detector Positioning System For The Automated Nondestructive Assay Of Uf6 Cylinders

    SciTech Connect (OSTI)

    Hatchell, Brian K.; Valdez, Patrick LJ; Orton, Christopher R.; Mace, Emily K.

    2011-08-07T23:59:59.000Z

    International Atomic Energy Agency (IAEA) inspectors currently perform periodic inspections at uranium enrichment plants to verify UF6 cylinder enrichment declarations. Measurements are typically performed with handheld high-resolution sensors on a sampling of cylinders taken to be representative of the facilitys entire cylinder inventory. These measurements are time-consuming, expensive, and assay only a small fraction of the total cylinder volume. An automated nondestructive assay system capable of providing enrichment measurements over the full volume of the cylinder could improve upon current verification practices in terms of efficiency and assay accuracy. This paper describes an approach denoted the Integrated Cylinder Verification Station (ICVS) that supports 100% cylinder verification, provides volume-averaged cylinder enrichment assay, and reduces inspector manpower needs. To allow field measurements to be collected to validate data collection algorithms, a prototype radiation detector positioning system was constructed. The system was designed to accurately position an array of radiation detectors along the length of a cylinder to measure UF6 enrichment. A number of alternative radiation shields for the detectors were included with the system. A collimated gamma-ray spectrometer module that allows translation of the detectors in the surrounding shielding to adjust the field of view, and a collimating plug in the end to further reduce the low-energy field of view, were also developed. Proof-of-principle measurements of neutron and high-energy gamma-ray signatures, using moderated neutron detectors and large-volume spectrometers in a fixed-geometry, portal-like configuration, supported an early assessment of the viability of the concept. The system has been used successfully on two testing campaigns at an AREVA fuel fabrication plant to scan over 30 product cylinders. This paper will describe the overall design of the detector positioning system and provide an overview of the Integrated Cylinder Verification Station (ICVS) approach.

  11. Sea Ice in the Global Climate System Kenneth M. Golden1

    E-Print Network [OSTI]

    Golden, Kenneth M.

    Sea Ice in the Global Climate System Kenneth M. Golden1 , Elizabeth Hunke2 , Cecilia Bitz3 Figure 2. The Antarctic sea ice pack with an open lead in the distance. (K. M. Golden) Figure 1. Pancake ice in the Southern Ocean off the coast of East Antarctica. (K. M. Golden

  12. Design and global optimization of high-efficiency solar thermal systems

    E-Print Network [OSTI]

    Soljaèiæ, Marin

    Design and global optimization of high-efficiency solar thermal systems with tungsten cermets David, Massachusetts 02139, USA bermel@mit.edu Abstract: Solar thermal, thermoelectric, and thermophotovoltaic (TPV by selective solar absorbers and TPV selective emitters. To improve these critical components, we study a class

  13. Global Tracking of Uncertain Nonlinear Cascaded Systems with Adaptive Internal Model1

    E-Print Network [OSTI]

    Sontag, Eduardo

    robust output regulation problem by dynamic state feedback control for the case where the exosystem regulation with uncertain exosystem by dynamic state feedback control. We have succeeded in developingGlobal Tracking of Uncertain Nonlinear Cascaded Systems with Adaptive Internal Model1 Zhiyong Chen

  14. C h a p t e r Toward a Global Ocean System for

    E-Print Network [OSTI]

    Chang, Grace C.

    C h a p t e r 9 Toward a Global Ocean System for Measurements of Optical Properties Using Remote, biogeochemical cycling, health of the ocean (e.g., harmful algal blooms), upper ocean heating, and underwater. Remote sensing of ocean color from aircraft- and satellite-borne in- struments is vital to obtain

  15. Cavity beam position monitor system for the Accelerator Test Facility 2

    SciTech Connect (OSTI)

    Kim, Y.I.; /Kyungpook Natl. U.; Ainsworth, R.; /Royal Holloway, U. of London; Aryshev, A.; /KEK, Tsukuba; Boogert, S.T.; Boorman, G.; /Royal Holloway, U. of London; Frisch, J.; /SLAC; Heo, A.; /Kyungpook Natl. U.; Honda, Y.; /KEK, Tsukuba; Hwang, W.H.; Huang, J.Y.; /Pohang Accelerator Lab.; Kim, E-S.; /Kyungpook Natl. U. /Pohang Accelerator Lab. /Royal Holloway, U. of London /KEK, Tsukuba

    2012-04-02T23:59:59.000Z

    The Accelerator Test Facility 2 (ATF2) is a scaled demonstrator system for final focus beam lines of linear high energy colliders. This paper describes the high resolution cavity beam position monitor (BPM) system, which is a part of the ATF2 diagnostics. Two types of cavity BPMs are used, C-band operating at 6.423 GHz, and S-band at 2.888 GHz with an increased beam aperture. The cavities, electronics, and digital processing are described. The resolution of the C-band system with attenuators was determined to be approximately 250 nm and 1 {mu}m for the S-band system. Without attenuation the best recorded C-band cavity resolution was 27 nm.

  16. A real-time applicator position monitoring system for gynecologic intracavitary brachytherapy

    SciTech Connect (OSTI)

    Xia, Junyi, E-mail: junyi-xia@uiowa.edu; Waldron, Timothy; Kim, Yusung [Department of Radiation Oncology, University of Iowa, Iowa City, Iowa 52242 (United States)] [Department of Radiation Oncology, University of Iowa, Iowa City, Iowa 52242 (United States)

    2014-01-15T23:59:59.000Z

    Purpose: To develop a real-time applicator position monitoring system (RAPS) for intracavitary brachytherapy using an infrared camera and reflective markers. Methods: 3D image-guided brachytherapy requires high accuracy of applicator localization; however, applicator displacement can happen during patient transfer for imaging and treatment delivery. No continuous applicator position monitoring system is currently available. The RAPS system was developed for real-time applicator position monitoring without additional radiation dose to patients. It includes an infrared camera, reflective markers, an infrared illuminator, and image processing software. After reflective markers are firmly attached to the applicator and the patient body, applicator displacement can be measured by computing the relative change in distance between the markers. The reflective markers are magnetic resonance imaging (MRI) compatible, which is suitable for MRI-guided HDR brachytherapy paradigm. In our prototype, a Microsoft Kinect sensor with a resolution of 640 by 480 pixels is used as an infrared camera. A phantom study was carried out to compare RAPS' measurements with known displacements ranging from ?15 to +15 mm. A reproducibility test was also conducted. Results: The RAPS can achieve 4 frames/s using a laptop with Intel{sup } Core2 Duo processor. When the pixel size is 0.95 mm, the difference between RAPS' measurements and known shift values varied from 0 to 0.8 mm with the mean value of 0.1 mm and a standard deviation of 0.44 mm. The system reproducibility was within 0.6 mm after ten reposition trials. Conclusions: This work demonstrates the feasibility of a real-time infrared camera based gynecologic intracavitary brachytherapy applicator monitoring system. Less than 1 mm accuracy is achieved when using an off-the-shelf infrared camera.

  17. Description of Atmospheric Conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)

    SciTech Connect (OSTI)

    Abreu, P.; /Lisbon, IST; Aglietta, M.; /Turin U. /INFN, Turin; Ahlers, M.; /Wisconsin U., Madison; Ahn, E.J.; /Fermilab; Albuquerque, I.F.M.; /Sao Paulo U.; Allard, D.; /APC, Paris; Allekotte, I.; /Buenos Aires, CONICET; Allen, J.; /New York U.; Allison, P.; /Ohio State U.; Almela, A.; /Natl. Tech. U., San Nicolas /Buenos Aires, CONICET; Alvarez Castillo, J.; /Mexico U., ICN /Santiago de Compostela U.

    2012-01-01T23:59:59.000Z

    Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a global atmospheric model predicated on meteorological measurements and numerical weather predictions. GDAS provides altitude-dependent profiles of the main state variables of the atmosphere like temperature, pressure, and humidity. The original data and their application to the air shower reconstruction of the Pierre Auger Observatory are described. By comparisons with radiosonde and weather station measurements obtained on-site in Malargue and averaged monthly models, the utility of the GDAS data is shown.

  18. Extended space expectation values of position related operators for hydrogen-like quantum system evolutions

    SciTech Connect (OSTI)

    Kalay, Berfin; Demiralp, Metin [?stanbul Technical University, Informatics Institute, Maslak, 34469, ?stanbul (Turkey)

    2014-10-06T23:59:59.000Z

    The expectation value definitions over an extended space from the considered Hilbert space of the system under consideration is given in another paper of the second author in this symposium. There, in that paper, the conceptuality rather than specification is emphasized on. This work uses that conceptuality to investigate the time evolutions of the position related operators' expectation values not in its standard meaning but rather in a new version of the definition over not the original Hilbert space but in the space obtained by extensions via introducing the images of the given initial wave packet under the positive integer powers of the system Hamiltonian. These images may not be residing in the same space of the initial wave packet when certain singularities appear in the structure of the system Hamiltonian. This may break down the existence of the integrals in the definitions of the expectation values. The cure is the use of basis functions in the abovementioned extended space and the sandwiching of the target operator whose expectation value is under questioning by an appropriately chosen operator guaranteeing the existence of the relevant integrals. Work specifically focuses on the hydrogen-like quantum systems whose Hamiltonians contain a polar singularity at the origin.

  19. The Causes of Trade Globalization: A Political-Economy and World-Systems Approach

    E-Print Network [OSTI]

    Kwon, Roy

    2011-01-01T23:59:59.000Z

    A. 2000. ?Globalization of the Economy. ? National Bureau ofof Trade Globalization: A Political-Economy and World-of Trade Globalization: A Political Economy and World-

  20. Transition to complete synchronization and global intermittent synchronization in an array of time-delay systems

    E-Print Network [OSTI]

    R. Suresh; D. V. Senthilkumar; M. Lakshmanan; J. Kurths

    2012-07-20T23:59:59.000Z

    We report the nature of transitions from nonsynchronous to complete synchronization (CS) state in arrays of time-delay systems, where the systems are coupled with instantaneous diffusive coupling. We demonstrate that the transition to CS occurs distinctly for different coupling configurations. In particular, for unidirectional coupling, locally (microscopically) synchronization transition occurs in a very narrow range of coupling strength but for a global one (macroscopically) it occurs sequentially in a broad range of coupling strength preceded by an intermittent synchronization. On the other hand, in the case of mutual coupling a very large value of coupling strength is required for local synchronization and, consequently, all the local subsystems synchronize immediately for the same value of the coupling strength and hence globally synchronization also occurs in a narrow range of the coupling strength. In the transition regime, we observe a new type of synchronization transition where long intervals of high quality synchronization which are interrupted at irregular times by intermittent chaotic bursts simultaneously in all the systems, which we designate as global intermittent synchronization (GIS). We also relate our synchronization transition results to the above specific types using unstable periodic orbit theory. The above studies are carried out in a well known piecewise linear time-delay system.

  1. A Correlation Estimate for Quantum Many-Body Systems at Positive Temperature

    E-Print Network [OSTI]

    Robert Seiringer

    2006-04-18T23:59:59.000Z

    We present an inequality that gives a lower bound on the expectation value of certain two-body interaction potentials in a general state on Fock space in terms of the corresponding expectation value for thermal equilibrium states of non-interacting systems and the difference in the free energy. This bound can be viewed as a rigorous version of first order perturbation theory for many-body systems at positive temperature. As an application, we give a proof of the first two terms in a high density (and high temperature) expansion of the free energy of jellium with Coulomb interactions, both in the fermionic and bosonic case. For bosons, our method works above the transition temperature (for the non-interacting gas) for Bose-Einstein condensation.

  2. Tropical Cyclone Data Assimilation: Experiments with a Coupled Global-Limited-Area Analysis System

    E-Print Network [OSTI]

    Holt, Christina

    2014-04-22T23:59:59.000Z

    for an extended time is a challenging task. In addition, the gainful assimilation of satellite radiance observations, which has shown promising results for the global setting, is still an open problem of limited-area data assimilation, because, among other issues..., no effective algorithm currently exists to estimate the bias in the radiance observations within the framework of a limited-area data assimilation system (Schwartz et al. 2012). Our ensemble-based data assimilation approach provides several potential benefits...

  3. PARTNER, GLOBAL PUBLIC SECTOR DIRECTOR OF GLOBAL SALES STRATEGY & EXECUTION

    E-Print Network [OSTI]

    Subramanian, Venkat

    as never before. It reveals everything from large and systemic patterns--of global markets, workflows are best positioned to outperform in the "Decade of Smart." And as centers of business, culture and life, over pizza and drinks, we discuss how to solve the problems of the GLOBE, and our only home - planet

  4. Measuring emission coordinates in a pulsar-based relativistic positioning system

    E-Print Network [OSTI]

    Darius Bunandar; Scott A. Caveny; Richard A. Matzner

    2011-12-08T23:59:59.000Z

    A relativistic deep space positioning system has been proposed using four or more pulsars with stable repetition rates. (Each pulsar emits pulses at a fixed repetition period in its rest frame.) The positioning system uses the fact that an event in spacetime can be fully described by emission coordinates: the proper emission time of each pulse measured at the event. The proper emission time of each pulse from four different pulsars---interpolated as necessary---provides the four spacetime coordinates of the reception event in the emission coordinate system. If more than four pulsars are available, the redundancy can improve the accuracy of the determination and/or resolve degeneracies resulting from special geometrical arrangements of the sources and the event. We introduce a robust numerical approach to measure the emission coordinates of an event in any arbitrary spacetime geometry. Our approach uses a continuous solution of the eikonal equation describing the backward null cone from the event. The pulsar proper time at the instant the null cone intersects the pulsar world line is one of the four required coordinates. The process is complete (modulo degeneracies) when four pulsar world lines have been crossed by the light cone. The numerical method is applied in two different examples: measuring emission coordinates of an event in Minkowski spacetime using pulses from four pulsars stationary in the spacetime; and measuring emission coordinates of an event in Schwarzschild spacetime using pulses from four pulsars freely falling toward a static black hole. These numerical simulations are merely exploratory, but with improved resolution and computational resources the method can be applied to more pertinent problems. For instance one could measure the emission coordinates, and therefore the trajectory, of the Earth.

  5. A LEO-Based Solar-Shade System to Mitigate Global Warming

    E-Print Network [OSTI]

    Suresh, Rahul

    2015-01-01T23:59:59.000Z

    The development of a Low-Earth-Orbit (LEO) based solar-shade system, as part of a technically- and financially-viable multipurpose system to provide long-term solutions to global warming and the energy crisis is discussed. The proposed solar-shade and power system would be enabled by the development of a previously-proposed less-expensive, environment-friendly, space-elevator system to lift mass into space. The solar shades, even during their early deployment and growth in LEO, would provide benefits such as reduction of space-debris and depletion of the Van Allen radiation belts.The Terrestrial temperature profile has been approximated for each latitudinal zone with a one-dimensional model. A shade ring at an altitude of 2000-4000 km, consisting of thin-film mega panels totaling up to 4% of the earths surface area (to block ~1% of insolation), is proposed. The effects of such near-polar rings on the global temperature pattern has been examined using the simple model. Specific emphasis has been laid on this e...

  6. A LEO-Based Solar-Shade System to Mitigate Global Warming

    E-Print Network [OSTI]

    Rahul Suresh; Andrew Meulenberg

    2015-04-20T23:59:59.000Z

    The development of a Low-Earth-Orbit (LEO) based solar-shade system, as part of a technically- and financially-viable multipurpose system to provide long-term solutions to global warming and the energy crisis is discussed. The proposed solar-shade and power system would be enabled by the development of a previously-proposed less-expensive, environment-friendly, space-elevator system to lift mass into space. The solar shades, even during their early deployment and growth in LEO, would provide benefits such as reduction of space-debris and depletion of the Van Allen radiation belts.The Terrestrial temperature profile has been approximated for each latitudinal zone with a one-dimensional model. A shade ring at an altitude of 2000-4000 km, consisting of thin-film mega panels totaling up to 4% of the earths surface area (to block ~1% of insolation), is proposed. The effects of such near-polar rings on the global temperature pattern has been examined using the simple model. Specific emphasis has been laid on this effect in the Polar Regions. One such proposed ring could reduce the peak summer temperature of the Polar Regions (80-90 degree latitude) by almost 3K. The tilting of the solar-shades, to reduce their cooling effect at the poles and to increase it in the near-polar regions, is recommended.

  7. Global Clock, Physical Time Order and Pending Period Analysis in Multiprocessor Systems

    E-Print Network [OSTI]

    Chen, Yunji; Hu, Weiwu

    2009-01-01T23:59:59.000Z

    In multiprocessor systems, various problems are treated with Lamport's logical clock and the resultant logical time orders between operations. However, one often needs to face the high complexities caused by the lack of logical time order information in practice. In this paper, we utilize the \\emph{global clock} to infuse the so-called \\emph{pending period} to each operation in a multiprocessor system, where the pending period is a time interval that contains the performed time of the operation. Further, we define the \\emph{physical time order} for any two operations with disjoint pending periods. The physical time order is obeyed by any real execution in multiprocessor systems due to that it is part of the truly happened operation orders restricted by global clock, and it is then proven to be independent and consistent with traditional logical time orders. The above novel yet fundamental concepts enables new effective approaches for analyzing multiprocessor systems, which are named \\emph{pending period analy...

  8. Turning quicksand into bedrock : understanding the dynamic effects of disease-focused global health aid on health systems

    E-Print Network [OSTI]

    Newkirk, Brian J

    2009-01-01T23:59:59.000Z

    This thesis asks one basic question: how do "vertical" disease- or intervention-focused global health programs impact the underlying health systems of the nations they serve? Vertical programs-health aid focused on a ...

  9. The Global Economy and the Latino Populations in the United States: A World Systems Approach

    E-Print Network [OSTI]

    Robinson, William I.

    2003-01-01T23:59:59.000Z

    a result of the globalization of the economy In other words,to the impact of the globalization of the economy on a stillcaused by the globalization of the economy the garment and

  10. Position estimation of transceivers in communication networks

    DOE Patents [OSTI]

    Kent, Claudia A. (Pleasanton, CA); Dowla, Farid (Castro Valley, CA)

    2008-06-03T23:59:59.000Z

    This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless receivers. Such an invention can be applied in sensor network applications, such as environmental monitoring of water in the soil or chemicals in the air where the position of the network nodes is deemed critical. Moreover, the present invention can be arranged to operate in areas where a Global Positioning System (GPS) is not available, such as inside buildings, caves, and tunnels.

  11. Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system

    E-Print Network [OSTI]

    Krishnan, Kannan M.

    Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO- nanoparticle hybrid system exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system Wei Zhang) Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures Appl. Phys. Lett

  12. Model Development Development of a system emulating the global carbon cycle in Earth system models

    E-Print Network [OSTI]

    K. Tachiiri; J. C. Hargreaves; J. D. Annan; A. Oka; A. Abe-ouchi; M. Kawamiya

    2010-01-01T23:59:59.000Z

    developed a loosely coupled model (LCM) which can represent the outputs of a GCMbased Earth system model

  13. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. XX, NO. Y, MONTH 2001 1 Global Transient Stability and Voltage Regulation

    E-Print Network [OSTI]

    Guo, Yi

    and voltage regulator. The designed controller is smooth and robust with respect to di#11;erent transient and voltage regulation are both important properties of power system control, but they are ascribed to di#11 of system behavior. We design in this paper a global controller to co-ordinate the transient stabilizer

  14. NYU's Chinese ACE 2005 EDR System Description Can Global Re-Ranking and Semantic Role Labeling help Chinese EDR?

    E-Print Network [OSTI]

    NYU's Chinese ACE 2005 EDR System Description Can Global Re-Ranking and Semantic Role Labeling help Chinese EDR? Heng Ji Adam Meyers Ralph Grishman Proteus Project Department of Computer Science New York the overall architecture of the NYU Chinese ACE 2005 EDR (Entity Detection and Recognition) system, focussing

  15. Comparing Supply-Side Specifications in Models of Global Agriculture and the Food System

    SciTech Connect (OSTI)

    Robinson, Sherman; van Meijl, Hans; Willenbockel, Dirk; Valin, Hugo; Fujimori, Shinichiro; Masui, Toshihiko; Sands, Ronald; Wise, Marshall A.; Calvin, Katherine V.; Havlik, Petr; Mason d'Croz, Daniel; Tabeau, Andrzej; Kavallari, Aikaterini; Schmitz, Christoph; Dietrich, Jan P.; von Lampe, Martin

    2014-01-01T23:59:59.000Z

    This paper compares the theoretical specification of production and technical change across the partial equilibrium (PE) and computable general equilibrium (CGE) models of the global agricultural and food system included in the AgMIP model comparison study. The two modeling approaches have different theoretical underpinnings concerning the scope of economic activity they capture and how they represent technology and the behavior of supply and demand in markets. This paper focuses on their different specifications of technology and supply behavior, comparing their theoretical and empirical treatments. While the models differ widely in their specifications of technology, both within and between the PE and CGE classes of models, we find that the theoretical responsiveness of supply to changes in prices can be similar, depending on parameter choices that define the behavior of supply functions over the domain of applicability defined by the common scenarios used in the AgMIP comparisons. In particular, we compare the theoretical specification of supply in CGE models with neoclassical production functions and PE models that focus on land and crop yields in agriculture. In practice, however, comparability of results given parameter choices is an empirical question, and the models differ in their sensitivity to variations in specification. To illustrate the issues, sensitivity analysis is done with one global CGE model, MAGNET, to indicate how the results vary with different specification of technical change, and how they compare with the results from PE models.

  16. Identification and compensation of friction for a dual stage positioning system

    E-Print Network [OSTI]

    Thimmalapura, Satish Voddina

    2005-11-01T23:59:59.000Z

    and velocity as compared to conventional friction models which are dependent on the direction of motion. Static and Coulomb friction were modelled as functions of velocity and position. This model was able to predict the behavior of the coarse stage...

  17. The dipole corrector magnets for the RHIC fast global orbit feedback system

    SciTech Connect (OSTI)

    Thieberger, P.; Arnold, L.; Folz, C.; Hulsart, R.; Jain, A.; Karl, R.; Mahler, G.; Meng, W.; Mernick, K.; Michnoff, R.; Minty, M.; Montag, C.; Ptitsyn, V.; Ritter, J.; Smart, L.; Tuozzolo, J.; White, J.

    2011-03-28T23:59:59.000Z

    The recently completed RHIC fast global orbit feedback system uses 24 small 'window-frame' horizontal dipole correctors. Space limitations dictated a very compact design. The magnetic design and modelling of these laminated yoke magnets is described as well as the mechanical implementation, coil winding, vacuum impregnation, etc. Test procedures to determine the field quality and frequency response are described. The results of these measurements are presented and discussed. A small fringe field from each magnet, overlapping the opposite RHIC ring, is compensated by a correction winding placed on the opposite ring's magnet and connected in series with the main winding of the first one. Results from measurements of this compensation scheme are shown and discussed.

  18. Long-term stability of the Leksell Gamma Knife{sup } Perfexion patient positioning system (PPS)

    SciTech Connect (OSTI)

    Novotny, J., E-mail: josef.novotnyml@homolka.cz [Department of Radiation Oncology, Medical Physics Division, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15213 (United States); Department of Medical Physics, Na Homolce Hospital, Prague 150 30 (Czech Republic); Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University in Prague, Prague 120 00 (Czech Republic); Department of Dosimetry and Application of Ionizing Radiation, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague 115 19 (Czech Republic); Department of Radiation Oncology, University Hospital Motol, Prague 150 06 (Czech Republic); Bhatnagar, J. P.; Xu, Y.; Huq, M. S. [Department of Radiation Oncology, Medical Physics Division, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15213 (United States)] [Department of Radiation Oncology, Medical Physics Division, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania 15213 (United States)

    2014-03-15T23:59:59.000Z

    Purpose: To assess the long-term mechanical stability and accuracy of the patient positioning system (PPS) of the Leksell Gamma Knife{sup } Perfexion (LGK PFX). Methods: The mechanical stability of the PPS of the LGK PFX was evaluated using measurements obtained between September 2007 and June 2011. Three methods were employed to measure the deviation of the coincidence of the radiological focus point (RFP) and the PPS calibration center point (CCP). In the first method, the onsite diode test tool with single diode detector was used together with the 4 mm collimator on a daily basis. In the second method, a service diode test tool with three diode detectors was used biannually at the time of the routine preventive maintenance. The test performed with the service diode test tool measured the deviations for all three collimators 4, 8, and 16 mm and also for three different positions of the PPS. The third method employed the conventional film pin-prick method. This test was performed annually for the 4 mm collimator at the time of the routine annual QA. To estimate the effect of the patient weight on the performance of the PPS, the focus precision tests were also conducted with varying weights on the PPS using a set of lead bricks. Results: The average deviations measured from the 641 daily focus precision tests were 0.1 0.1, 0.0 0.0, and 0.0 0.0 mm, respectively, for the 4 mm collimator in the X (left/right of the patient), Y (anterior/posterior of the patient), and Z (superior/inferior of the patient) directions. The average of the total radial deviations as measured during ten semiannual measurements with the service diode test tool were 0.070 0.029, 0.060 0.022, and 0.103 0.028 mm, respectively for the central, long, and short diodes for the 4 mm collimator. Similarly, the average total radial deviations measured during the semiannual measurements for the 4, 8, and 16 mm collimators and using the central diode were 0.070 0.029, 0.097 0.025, 0.159 0.028 mm, respectively. The average values of the deviations as obtained from the five annual film pin-prick tests for the 4 mm collimator were 0.10 0.06, 0.06 0.09, and 0.03 0.03 mm for the X, Y, Z stereotactic directions, respectively. Only a minor change was observed in the total radial deviations of the PPS as a function of the simulated patient weight up to 202 kg on the PPS. Conclusions: Excellent long-term mechanical stability and high accuracy was observed for the PPS of the LGK PFX. No PPS recalibration or any adjustment in the PPS was needed during the monitored period of time. Similarly, the weight on the PPS did not cause any significant disturbance in the performance of the PPS for up to 202 kg simulated patient weight.

  19. Development of a measuring system for parking position Can wireless charging of electric vehicles deliver its full

    E-Print Network [OSTI]

    Zhao, Yuxiao

    of our projects aims to obtain a better understanding of wireless charging of electric vehicles regarding connection of electric vehicles to the grid. In order for wireless charging to be successful1 Development of a measuring system for parking position Can wireless charging of electric

  20. Independent electrons model for open quantum systems: Landauer-Buettiker formula and strict positivity of the entropy production

    E-Print Network [OSTI]

    G. Nenciu

    2006-10-26T23:59:59.000Z

    A general argument leading from the formula for currents through an open noninteracting mesoscopic system given by the theory of non-equilibrium steady states (NESS) to the Landauer-Buettiker formula is pointed out. Time reversal symmetry is not assumed. As a consequence it follows that, as far as the system has a nontrivial scattering theory and the reservoirs have different temperatures and/or chemical potentials, the entropy production is strictly positive.

  1. Preliminary Concept of Operations for a Global Cylinder Identification and Monitoring System

    SciTech Connect (OSTI)

    Whitaker, J. M. [ORNL; White-Horton, J. L. [ORNL; Morgan, J. B. [InSolves Associates

    2013-08-01T23:59:59.000Z

    This report describes a preliminary concept of operations for a Global Cylinder Identification and Monitoring System that could improve the efficiency of the International Atomic Energy Agency (IAEA) in conducting its current inspection activities and could provide a capability to substantially increase its ability to detect credible diversion scenarios and undeclared production pathways involving UF6 cylinders. There exist concerns that a proliferant State with access to enrichment technology could obtain a cylinder containing natural or low-enriched uranium hexafluoride (UF6) and produce a significant quantity (SQ)1 of highly enriched uranium in as little as 30 days. The National Nuclear Security Administration (NNSA) through the Next Generation Safeguards Initiative sponsored a multi-laboratory team to develop an integrated system that provides for detecting scenarios involving 1) diverting an entire declared cylinder for enrichment at a clandestine facility, 2) misusing a declared cylinder at a safeguarded facility, and 3) using an undeclared cylinder at a safeguarded facility. An important objective in developing this integrated system was to improve the timeliness for detecting the cylinder diversion and undeclared production scenarios. Developing this preliminary concept required in-depth analyses of current operational and safeguards practices at conversion, enrichment, and fuel fabrication facilities. The analyses evaluated the processing, movement, and storage of cylinders at the facilities; the movement of cylinders between facilities (including cylinder fabrication); and the misuse of safeguarded facilities.

  2. Field location & marking of no-passing zones due to vertical alignments using the global positioning system

    E-Print Network [OSTI]

    Williams, Cameron Lee

    2008-10-10T23:59:59.000Z

    To my Mom, Dad, and Brother vi ACKNOWLEDGMENTS There have been many people who have made this thesis possible and there is no way to remember them all; but I would like to take this opportunity to thank a few of them. First I would like... .......................................................................................................... v ACKNOWLEDGMENTS......................................................................................... vi TABLE OF CONTENTS .......................................................................................... vii LIST OF FIGURES...

  3. 1 Introduction Recently, a number of applications for Global Positioning System (GPS) and geographic addresses have been

    E-Print Network [OSTI]

    Hughes, Larry

    In Cartesian routing, each arterial issues Arterial This Way (ATW) control packets during its initialization process. An ATW tells the receiving collector router if an arterial is accessible through the incoming port. An ATW also specifies what kind of connection is accessible via the incoming port: north, south

  4. Integration of Global Positioning System and Scanning Water Vapor Radiometers for Precipitable Water Vapor and Cloud Liquid Path Estimates

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn Other NewsSpin andInterim DataCooling -INTEGRATINGIntegration

  5. The global unified parallel file system (GUPFS) project: FY 2003 activities and results

    SciTech Connect (OSTI)

    Butler, Gregory F.; Baird William P.; Lee, Rei C.; Tull, Craig E.; Welcome, Michael L.; Whitney Cary L.

    2004-04-30T23:59:59.000Z

    The Global Unified Parallel File System (GUPFS) project is a multiple-phase project at the National Energy Research Scientific Computing (NERSC) Center whose goal is to provide a scalable, high-performance, high-bandwidth, shared file system for all of the NERSC production computing and support systems. The primary purpose of the GUPFS project is to make the scientific users more productive as they conduct advanced scientific research at NERSC by simplifying the scientists' data management tasks and maximizing storage and data availability. This is to be accomplished through the use of a shared file system providing a unified file namespace, operating on consolidated shared storage that is accessible by all the NERSC production computing and support systems. In order to successfully deploy a scalable high-performance shared file system with consolidated disk storage, three major emerging technologies must be brought together: (1) shared/cluster file systems software, (2) cost-effective, high-performance storage area network (SAN) fabrics, and (3) high-performance storage devices. Although they are evolving rapidly, these emerging technologies individually are not targeted towards the needs of scientific high-performance computing (HPC). The GUPFS project is in the process of assessing these emerging technologies to determine the best combination of solutions for a center-wide shared file system, to encourage the development of these technologies in directions needed for HPC, particularly at NERSC, and to then put them into service. With the development of an evaluation methodology and benchmark suites, and with the updating of the GUPFS testbed system, the project did a substantial number of investigations and evaluations during FY 2003. The investigations and evaluations involved many vendors and products. From our evaluation of these products, we have found that most vendors and many of the products are more focused on the commercial market. Most vendors lack the understanding of, or do not have the resources to pay enough attention to, the needs of high-performance computing environments such as NERSC.

  6. Battery system including batteries that have a plurality of positive terminals and a plurality of negative terminals

    DOE Patents [OSTI]

    Dougherty, Thomas J; Symanski, James S; Kuempers, Joerg A; Miles, Ronald C; Hansen, Scott A; Smith, Nels R; Taghikhani, Majid; Mrotek, Edward N; Andrew, Michael G

    2014-01-21T23:59:59.000Z

    A lithium battery for use in a vehicle includes a container, a plurality of positive terminals extending from a first end of the lithium battery, and a plurality of negative terminals extending from a second end of the lithium battery. The plurality of positive terminals are provided in a first configuration and the plurality of negative terminals are provided in a second configuration, the first configuration differing from the second configuration. A battery system for use in a vehicle may include a plurality of electrically connected lithium cells or batteries.

  7. Final Technical Report for "Radiative Heating Associated with Tropical Convective Cloud Systems: Its Importance at Meso and Global Scales"

    SciTech Connect (OSTI)

    Schumacher, Courtney

    2012-12-13T23:59:59.000Z

    Heating associated with tropical cloud systems drive the global circulation. The overall research objectives of this project were to i) further quantify and understand the importance of heating in tropical convective cloud systems with innovative observational techniques, and ii) use global models to determine the large-scale circulation response to variability in tropical heating profiles, including anvil and cirrus cloud radiative forcing. The innovative observational techniques used a diversity of radar systems to create a climatology of vertical velocities associated with the full tropical convective cloud spectrum along with a dissection of the of the total heating profile of tropical cloud systems into separate components (i.e., the latent, radiative, and eddy sensible heating). These properties were used to validate storm-scale and global climate models (GCMs) and were further used to force two different types of GCMs (one with and one without interactive physics). While radiative heating was shown to account for about 20% of the total heating and did not have a strong direct response on the global circulation, the indirect response was important via its impact on convection, esp. in how radiative heating impacts the tilt of heating associated with the Madden-Julian Oscillation (MJO), a phenomenon that accounts for most tropical intraseasonal variability. This work shows strong promise in determining the sensitivity of climate models and climate processes to heating variations associated with cloud systems.

  8. Pneumatic Driven Positioning and Alignment System for the Assembly of Hybrid Microsystems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -positioned by a conventional handling device like an industrial robot. Thereby the large working area and high dynamics of the equipment and the required application specific customizations. In this context a high precision assembly head is presented. It upgrades conventional robots with the ability to do fine alignment steps in sub

  9. Multiprocessor position/velocity servo control for multiaxis digital robot control system

    SciTech Connect (OSTI)

    Lancraft, R.E.; Daggett, K.E.; Omaga, E.M.; Casler, R.J. Jr.; Booth, B.L.; Bergman, N.J.; Nuncy, M.D.

    1989-09-19T23:59:59.000Z

    This paper describes a digitally controlled robot. It comprises: an arm having a plurality of joints; each of the joints being axis driven by an electric motor drive; a power amplifier operable to supply drive current to each joint drive motor; respective feedback control loop means for respectively controlling the power amplifier for each of the joint drive motors; servo control means for performing control support tasks and calculation tasks; control means including a first microprocessor having a relatively high computing performance capability and a relatively low data processing interface capability; control means further including a second microprocessor having a relatively high data processing performance capability; means for interfacing the first and second microprocessors; means for generating position commands for implementation by the second microprocessor; means for detecting motor position and velocity for each drive axis and for generating corresponding digital feedback signals; means for operating the second microprocessor to control the interfacing means so as to send position commands to the first microprocessor and receive calculated torque commands from the first microprocessor; and means for operating the second microprocessor to apply the torque commands to the torque control circuitry for execution and for synchronously receiving from the motor detecting means the digital feedback position and velocity signals.

  10. Feasibility of integrating other federal information systems into the Global Network of Environment and Technology, GNET{reg_sign}

    SciTech Connect (OSTI)

    NONE

    1998-05-01T23:59:59.000Z

    The Global Environment and Technology Enterprise (GETE) of the Global Environment and Technology Foundation (GETF) has been tasked by the US Department of Energy`s (DOE), Federal Energy Technology Center (FETC) to assist in reducing DOE`s cost for the Global Network of Environment and Technology (GNET{reg_sign}). As part of this task, GETE is seeking federal partners to invest in GNET{reg_sign}. The authors are also seeking FETC`s commitment to serve as GNET`s federal agency champion promoting the system to potential agency partners. This report assesses the benefits of partnering with GNET{reg_sign} and provides recommendations for identifying and integrating other federally funded (non-DOE) environmental information management systems into GNET{reg_sign}.

  11. Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion

    E-Print Network [OSTI]

    Research Statement of Hamsa Balakrishnan The air transportation system is a large, complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge to the Joint Economic Committee of the US Senate, domestic air traffic delays in 2007 cost airlines over $19

  12. Research Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion

    E-Print Network [OSTI]

    Gummadi, Ramakrishna

    is important because of the high costs of delays and pollution today, as well as the projected doubling in airResearch Statement of Hamsa Balakrishnan The air transportation system is a complex, global system that transports over 2.1 billion passengers each year. Air traffic delays have become a huge problem

  13. Availability in Globally Distributed Storage Systems Daniel Ford, Francois Labelle, Florentina I. Popovici, Murray Stokely, Van-Anh Truong

    E-Print Network [OSTI]

    Maccabe, Barney

    Availability in Globally Distributed Storage Systems Daniel Ford, Francois Labelle, Florentina I,flab,florentina,mstokely}@google.com, vatruong@ieor.columbia.edu {luiz,cgrimes,sean}@google.com Google, Inc. Abstract Highly available cloud are needed to achieve high performance and availability amidst an abundance of failure sources that include

  14. Building a Network of SME for a Global PSS Infrastructure in Complex High-Tech Systems: Example of Urban Applications

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Building a Network of SME for a Global PSS Infrastructure in Complex High-Tech Systems: Example is then applied to the case of urban PSS. Keywords: Network of SME, PSS Organization, Machine and facilitating maintenance. Dynamic high-technology Small and Medium Enterprises (SME) propose innovative

  15. Use of Statistical Entropy and Life Cycle Analysis to Evaluate Global Warming Potential of Waste Management Systems

    E-Print Network [OSTI]

    Columbia University

    The statistical entropy (SE) function has been applied to waste treatment systems to account for dilution solid waste (MSW). A greenhouse gas- forcing factor is also introduced to account for the entropyUse of Statistical Entropy and Life Cycle Analysis to Evaluate Global Warming Potential of Waste

  16. An exact mapping between the states of arbitrary N-level quantum systems and the positions of classical coupled oscillators

    E-Print Network [OSTI]

    Thomas E. Skinner

    2013-02-12T23:59:59.000Z

    The dynamics of states representing arbitrary N-level quantum systems, including dissipative systems, can be modelled exactly by the dynamics of classical coupled oscillators. There is a direct one-to-one correspondence between the quantum states and the positions of the oscillators. Quantum coherence, expectation values, and measurement probabilities for system observables can therefore be realized from the corresponding classical states. The time evolution of an N-level system is represented as the rotation of a real state vector in hyperspace, as previously known for density matrix states but generalized here to Schrodinger states. A single rotor in n dimensions is then mapped directly to n oscillators in one physical dimension. The number of oscillators needed to represent N-level systems scales linearly with N for Schrodinger states, in contrast to N^2 for the density matrix formalism. Although the well-known equivalence (SU(2), SO(3) homomorphism) of 2-level quantum dynamics to a rotation in real, physical space cannot be generalized to arbitrary N-level systems, representing quantum dynamics by a system of coupled harmonic oscillators in one physical dimension is general for any N. Values for the classical coupling constants are readily obtained from the system Hamiltonian, allowing construction of classical mechanical systems that can provide visual insight into the dynamics of abstract quantum systems as well as a metric for characterizing the interface between quantum and classical mechanics.

  17. Operational Experience with a PLC Based Positioning System for a LHC Extraction Protection Element

    E-Print Network [OSTI]

    Boucly, C; Bracco, C; Carlier, E; Magnin, N; Voumard, N

    2014-01-01T23:59:59.000Z

    The LHC Beam Dumping System (LBDS) nominally dumps the beam synchronously with the passage of the particle free beam abort gap at the beam dump extraction kickers.

  18. Well-posedness, global existence and blow-up phenomena for an integrable multi-component Camassa-Holm system

    E-Print Network [OSTI]

    Zeng Zhang; Zhaoyang Yin

    2014-11-24T23:59:59.000Z

    This paper is concerned with a multi-component Camassa-Holm system, which has been proven to be integrable and has peakon solutions. This system includes many one-component and two-component Camassa-Holm type systems as special cases. In this paper, we first establish the local well-posedness and a continuation criterion for the system, then we present several global existence or blow-up results for two important integrable two-component subsystems. Our obtained results cover and improve recent results in \\cite{Gui,yan}.

  19. Global Statistics

    E-Print Network [OSTI]

    Crow, Ben D

    2006-01-01T23:59:59.000Z

    1996). Globalization in Question: International Economy andGlobalization; Justice; Poverty; Underground Economy; United

  20. A system for automatic positioning and alignment of fiber-tip interferometers

    E-Print Network [OSTI]

    Jalan, Mahesh

    2004-11-15T23:59:59.000Z

    -Acousto-Photonic NDE technique for characterizing a wide range of engineering materials including polymers, semiconductors and composites. The need to adapt the fiber-optic interferometric system to an industrial environment and to achieve precision control...

  1. Tenure-Track Faculty Position: Energy Systems Engineering School of Engineering

    E-Print Network [OSTI]

    Hayden, Nancy J.

    program focused on the interrelationships between technology, behavior, and policy of Smart Grid systems. UVM is located in Burlington, Vermont, rated as one of the best small cities in America. UVM

  2. Collaborative Proposal: Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach

    SciTech Connect (OSTI)

    Estep, Donald

    2013-04-15T23:59:59.000Z

    Despite the great interest in regional modeling for both weather and climate applications, regional modeling is not yet at the stage that it can be used routinely and effectively for climate modeling of the ocean. The overarching goal of this project is to transform how climate models are used by developing and implementing a robust, efficient, and accurate global approach to regional ocean modeling. To achieve this goal, we will use theoretical and computational means to resolve several basic modeling and algorithmic issues. The first task is to develop techniques for transitioning between parameterized and high-fidelity regional ocean models as the discretization grid transitions from coarse to fine regions. The second task is to develop estimates for the error in scientifically relevant quantities of interest that provide a systematic way to automatically determine where refinement is needed in order to obtain accurate simulations of dynamic and tracer transport in regional ocean models. The third task is to develop efficient, accurate, and robust time-stepping schemes for variable spatial resolution discretizations used in regional ocean models of dynamics and tracer transport. The fourth task is to develop frequency-dependent eddy viscosity finite element and discontinuous Galerkin methods and study their performance and effectiveness for simulation of dynamics and tracer transport in regional ocean models. These four projects share common difficulties and will be approach using a common computational and mathematical toolbox. This is a multidisciplinary project involving faculty and postdocs from Colorado State University, Florida State University, and Penn State University along with scientists from Los Alamos National Laboratory. The completion of the tasks listed within the discussion of the four sub-projects will go a long way towards meeting our goal of developing superior regional ocean models that will transform how climate system models are used.

  3. Globalization: Ecological Consequences of Global-Scale Connectivity in People,

    E-Print Network [OSTI]

    11 Globalization: Ecological Consequences of Global-Scale Connectivity in People, Resources of the global mineral aerosol load (Tanaka & Chiba, 2006). #12;The Systemic Dimension of Globalization212 of Agriculture ­ Agricultural Research Service, Las Cruces, New Mexico USA 1. Introduction Globalization

  4. Identification and compensation of friction for a dual stage positioning system

    E-Print Network [OSTI]

    Thimmalapura, Satish Voddina

    2005-11-01T23:59:59.000Z

    increases the accuracy of the read/write head in hard disk drives. A scaled up version of the dual stage actuator is considered as the test bed for this thesis. Friction is present in all electromechanical systems. This thesis deals with modelling...

  5. Enforcing positivity in intrusive PC-UQ methods for reactive ODE systems

    SciTech Connect (OSTI)

    Najm, Habib N. [Sandia National Laboratories, Livermore, CA 94551 (United States); Valorani, Mauro [Mechanical and Aerospace Engineering Dept., Sapienza University of Rome, Rome (Italy)

    2014-08-01T23:59:59.000Z

    We explore the relation between the development of a non-negligible probability of negative states and the instability of numerical integration of the intrusive Galerkin ordinary differential equation system describing uncertain chemical ignition. To prevent this instability without resorting to either multi-element local polynomial chaos (PC) methods or increasing the order of the PC representation in time, we propose a procedure aimed at modifying the amplitude of the PC modes to bring the probability of negative state values below a user-defined threshold. This modification can be effectively described as a filtering procedure of the spectral PC coefficients, which is applied on-the-fly during the numerical integration when the current value of the probability of negative states exceeds the prescribed threshold. We demonstrate the filtering procedure using a simple model of an ignition process in a batch reactor. This is carried out by comparing different observables and error measures as obtained by non-intrusive Monte Carlo and Gauss-quadrature integration and the filtered intrusive procedure. The filtering procedure has been shown to effectively stabilize divergent intrusive solutions, and also to improve the accuracy of stable intrusive solutions which are close to the stability limits.

  6. Global minimization in few-body systems , I.E. Lagarisa,b

    E-Print Network [OSTI]

    Voglis, Costas

    , Greece b Physics Department, University of South Africa, Pretoria 0003, South Africa The use of global small energy window E. The spectrum is usually obtained using standard few-body methods based on finite energy that lies in an energy range where several other binding energies exist and therefore

  7. version 11apr11a Geopolitics of the Global Oil System

    E-Print Network [OSTI]

    O'Donnell, Tom

    ://menapetroleum.blogspot.com/ Short Description This course examines the political economy of global energy, especially oil, and its-group blogs: 1. China Oil Affairs http://chinaoilaffairs.blogspot.com/ 2. Rentismo & Dutch Disease http geopolitical consequences for the Middle East, Latin America, China, and U.S. policy. In Part 1, Resources, we

  8. Spatial data infrastructures for the Amazon: a first step towards a global forest information system

    E-Print Network [OSTI]

    Camara, Gilberto

    of deforestation caused by human actions. Deforestation is particularly intense in countries with large million km2 , 17% of the original forest has been cleared, according to the Brazilian deforestation, current information on global deforestation is extremely patchy. There is much disagreement

  9. Position Management and Classification

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2014-10-30T23:59:59.000Z

    The Order establishes Departmental requirements and responsibilities for classifying positions using the General Schedule (GS) and the Federal Wage System (FWS) standards.

  10. Triply redundant integrated navigation and asset visibility system

    DOE Patents [OSTI]

    Smith, Stephen F. (Loudon, TN); Moore, James A. (Powell, TN)

    2011-11-29T23:59:59.000Z

    Methods and apparatus are described for a navigation system. A method includes providing a global positioning system fix having a plurality of tracking parameters; providing a theater positioning system fix; monitoring the plurality of tracking parameters for predetermined conditions; and, when the predetermined conditions are met, sending a notifying signal and switching to the theater positioning system fix as a primary fix. An apparatus includes a system controller; a global positioning system receiver coupled to the system controller; a radio frequency locating receiver coupled to the system controller; and an operator interface coupled to the system controller.

  11. Triply redundant integrated navigation and asset visibility system

    DOE Patents [OSTI]

    Smith, Stephen F.; Moore, James A.

    2013-01-22T23:59:59.000Z

    Methods and apparatus are described for a navigation system. A method includes providing a global positioning system fix having a plurality of tracking parameters; providing a theater positioning system fix; monitoring the plurality of tracking parameters for predetermined conditions; and, when the predetermined conditions are met, sending a notifying signal and switching to the theater positioning system fix as a primary fix. An apparatus includes a system controller; a global positioning system receiver coupled to the system controller; a radio frequency locating receiver coupled to the system controller; and an operator interface coupled to the system controller.

  12. BULK POWER SYSTEM DYNAMICS AND CONTROL V, AUGUST 26-31, 2001, ONOMICHI, JAPAN Global Hybrid Control of Power Systems

    E-Print Network [OSTI]

    Guo, Yi

    by consideration of coordinated control for transient stability, voltage regulation and emergency voltage control absorbed such as dy- namic programming, model predictive control, nonlinear control, so-called fuzzy controllers which deal with complexity is called global control. Models are assumed to be of a heterogeneous

  13. Integration of Knowledge Organization Systems into Digital Library Architectures: Position Paper for 13th ASIS&T SIG/CR Workshop,

    E-Print Network [OSTI]

    Jane, Greg

    Integration of Knowledge Organization Systems into Digital Library Architectures: Position Paper for 13th ASIS&T SIG/CR Workshop, "Reconceptualizing Classification Research" Linda Hill, Olha Buchel, Greg Jane Alexandria Digital Library Project University of California, Santa Barbara lhill

  14. Chimeras in globally coupled oscillatory systems: From ensembles of oscillators to spatially continuous media

    E-Print Network [OSTI]

    Lennart Schmidt; Katharina Krischer

    2015-03-13T23:59:59.000Z

    We study an oscillatory medium with a nonlinear global coupling that gives rise to a harmonic mean-field oscillation with constant amplitude and frequency. Two types of cluster states are found, each undergoing a symmetry-breaking transition towards a related chimera state. We demonstrate that the diffusional coupling is non-essential for these complex dynamics. Furthermore, we investigate localized turbulence and discuss the question of a precise definition for chimera states.

  15. Canonical Duality-Triality Theory: Bridge Between Nonconvex Analysis/Mechanics and Global Optimization in Complex Systems

    E-Print Network [OSTI]

    David Y Gao; Ning Ruan; Vittorio Latorre

    2014-11-26T23:59:59.000Z

    Canonical duality-triality is a breakthrough methodological theory, which can be used not only for modeling complex systems within a unified framework, but also for solving a wide class of challenging problems from real-world applications. This paper presents a brief review on this theory, its philosophical origin, physics foundation, and mathematical statements in both finite and infinite dimensional spaces, with emphasizing on its role for bridging the gap between nonconvex analysis/mechanics and global optimization. Special attentions are paid on unified understanding the fundamental difficulties in large deformation mechanics, bifurcation/chaos in nonlinear science, and the NP-hard problems in global optimization, as well as the theorems, methods, and algorithms for solving these challenging problems. Misunderstandings and confusions on some basic concepts, such as objectivity, nonlinearity, Lagrangian, and generalized convexities are discussed and classified. Breakthrough from recent challenges and conceptual mistakes by M. Voisei, C. Zalinescu and his co-worker are addressed. Some open problems and future works in global optimization and nonconvex mechanics are proposed.

  16. Design and global optimization of high-efficiency solar thermal systems with tungsten cermets

    E-Print Network [OSTI]

    Chester, David A.

    Solar thermal, thermoelectric, and thermophotovoltaic (TPV) systems have high maximum theoretical efficiencies; experimental systems fall short because of losses by selective solar absorbers and TPV selective emitters. To ...

  17. Using Loran for Broadcast of Integrity Information for Modernized Global Navigation Satellite Systems

    E-Print Network [OSTI]

    Stanford University

    States (US) Federal Aviation Administration (FAA) has been examining the potential of using an enhanced involved in aviation navigation programs such as WAAS, LAAS and Loran with the US Federal Aviation Administration (FAA). He is the Director of the Stanford Center for Position Navigation and Time. Benjamin

  18. Development of Low Global Warming Potential Refrigerant Solutions for Commercial Refrigeration Systems using a Life Cycle Climate Performance Design Tool

    SciTech Connect (OSTI)

    Abdelaziz, Omar [ORNL] [ORNL; Fricke, Brian A [ORNL] [ORNL; Vineyard, Edward Allan [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    Commercial refrigeration systems are known to be prone to high leak rates and to consume large amounts of electricity. As such, direct emissions related to refrigerant leakage and indirect emissions resulting from primary energy consumption contribute greatly to their Life Cycle Climate Performance (LCCP). In this paper, an LCCP design tool is used to evaluate the performance of a typical commercial refrigeration system with alternative refrigerants and minor system modifications to provide lower Global Warming Potential (GWP) refrigerant solutions with improved LCCP compared to baseline systems. The LCCP design tool accounts for system performance, ambient temperature, and system load; system performance is evaluated using a validated vapor compression system simulation tool while ambient temperature and system load are devised from a widely used building energy modeling tool (EnergyPlus). The LCCP design tool also accounts for the change in hourly electricity emission rate to yield an accurate prediction of indirect emissions. The analysis shows that conventional commercial refrigeration system life cycle emissions are largely due to direct emissions associated with refrigerant leaks and that system efficiency plays a smaller role in the LCCP. However, as a transition occurs to low GWP refrigerants, the indirect emissions become more relevant. Low GWP refrigerants may not be suitable for drop-in replacements in conventional commercial refrigeration systems; however some mixtures may be introduced as transitional drop-in replacements. These transitional refrigerants have a significantly lower GWP than baseline refrigerants and as such, improved LCCP. The paper concludes with a brief discussion on the tradeoffs between refrigerant GWP, efficiency and capacity.

  19. Globalization Nationalized

    E-Print Network [OSTI]

    Mazlish, Bruce

    Globalism and globalization have been seen as competitors to other allegiances, namely regionalism and nationalism. A look at recent efforts at reconceptualizing global history in China, Korea and the U.S., however, suggests ...

  20. Global implications of Rapid: an international system facilitating inexpensive resource sharing

    E-Print Network [OSTI]

    Leon, Lars

    2008-09-29T23:59:59.000Z

    of the system vendor. International implications including copyright, ability to interact with various types of interlibrary loan managing systems, scanning and human interactions will be reviewed. This paper will conclude with an assessment to whether a...

  1. Position Management

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-06-23T23:59:59.000Z

    The order prescribes the policies, responsibilities, and procedures for position management within (DOE). Canceled by DOE N 1321.140. Cancels DOE 3510.1

  2. Global existence and $L^{p}$ convergence rates of planar waves for three-dimensional bipolar Euler-Poisson systems

    E-Print Network [OSTI]

    Jie Liao; Yeping Li

    2015-01-24T23:59:59.000Z

    In the paper, we consider a multi-dimensional bipolar hydrodynamic model from semiconductor devices and plasmas. This system takes the form of Euler-Poisson with electric field and frictional damping added to the momentum equations. We show the global existence and $L^{p}$ convergence rates of planar diffusion waves for multi-dimensional bipolar Euler-Poisson systems when the initial data are near the planar diffusive waves. A frequency decomposition and approximate Green function based on delicate energy method are used to get the optimal decay rates of the planar diffusion waves. To our knowledge, the $L^p(p\\in[2,+\\infty])$-convergence rate of planar waves improves the previous results about the $L^2$-convergence rates.

  3. FACULTY POSITION ANNOUNCEMENT Manufacturing and/or Logistics The Industrial & Systems Engineering Department in the College of Engineering at the University of

    E-Print Network [OSTI]

    Kaminsky, Werner

    FACULTY POSITION ANNOUNCEMENT Manufacturing and/or Logistics The Industrial & Systems Engineering must have a Ph.D. in Industrial Engineering, Systems Engineering and/or Operations Research Department in the College of Engineering at the University of Washington is preparing to accept applications

  4. An Evaluation of the Environmental Impact of Different Commercial Supermarket Refrigeration Systems Using Low Global Warming Potential Refrigerants

    SciTech Connect (OSTI)

    Beshr, Mohamed [University of Maryland, College Park; Aute, Vikrant [University of Maryland, College Park; Abdelaziz, Omar [ORNL; Fricke, Brian A [ORNL; Radermacher, Reinhard [University of Maryland, College Park

    2014-01-01T23:59:59.000Z

    Commercial refrigeration systems consumed 1.21 Quads of primary energy in 2010 and are known to be a major source for refrigerant charge leakage into the environment. Thus, it is important to study the environmental impact of commercial supermarket refrigeration systems and improve their design to minimize any adverse impacts. The system s Life Cycle Climate Performance (LCCP) was presented as a comprehensive metric with the aim of calculating the equivalent mass of carbon dioxide released into the atmosphere throughout its lifetime, from construction to operation and destruction. In this paper, an open source tool for the evaluation of the LCCP of different air-conditioning and refrigeration systems is presented and used to compare the environmental impact of a typical multiplex direct expansion (DX) supermarket refrigeration systems based on three different refrigerants as follows: two hydrofluorocarbon (HFC) refrigerants (R-404A, and R-407F), and a low global warming potential (GWP) refrigerant (N-40). The comparison is performed in 8 US cities representing different climates. The hourly energy consumption of the refrigeration system, required for the calculation of the indirect emissions, is calculated using a widely used building energy modeling tool (EnergyPlus). A sensitivity analysis is performed to determine the impact of system charge and power plant emission factor on the LCCP results. Finally, we performed an uncertainty analysis to determine the uncertainty in total emissions for both R-404A and N-40 operated systems. We found that using low GWP refrigerants causes a considerable drop in the impact of uncertainty in the inputs related to direct emissions on the uncertainty of the total emissions of the system.

  5. The Global Impact of the Systemic Economies and MENA Business Cycles

    E-Print Network [OSTI]

    Cashin, Paul; Mohaddes, Kamiar; Raissi, Mehdi

    2012-11-01T23:59:59.000Z

    in output of a given country associated with 1% decline in U.S. GDP, together with the 16th and 84th percentile error bands. Figure 3: Four Quarters Cumulated Impulse Responses of Oil Prices and Supply (a) Oil Price (b) Oil Supply Notes: Depicts annual... percent change in oil price and production associated with a negative/positive unit shock (equal to one standard error) to the GDP of corresponding economy or region, together with the 16th and 84th percentile error bands. These responses are based...

  6. Modeling the Global Water Resource System in an Integrated Assessment Modeling Framework: IGSM-WRS

    E-Print Network [OSTI]

    Strzepek, Kenneth M.

    The availability of water resources affects energy, agricultural and environmental systems, which are linked together as well as to climate via the water cycle. As such, watersheds and river basins are directly impacted ...

  7. The EUs Emissions Trading Scheme: A Proto-Type Global System?

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2008-01-01T23:59:59.000Z

    The European Union's Emission Trading Scheme (EU ETS) is the world's first multinational cap-and-trade system for greenhouse gases. As an agreement between sovereign nations with diverse historical, institutional, and ...

  8. The EUs Emissions Trading Scheme: A Prototype Global System?

    E-Print Network [OSTI]

    Ellerman, A. Denny

    The European Union's Emission Trading Scheme (EU ETS) is the world's first multinational cap-and-trade system for greenhouse gases. As an agreement between sovereign nations with diverse historical, institutional, and ...

  9. GLOBAL OPTIMIZATION FOR THE SYNTHESIS OF INTEGRATED WATER SYSTEMS IN CHEMICAL PROCESSES

    E-Print Network [OSTI]

    Grossmann, Ignacio E.

    for desalting crude oil in petroleum refineries, for liquid-liquid extraction in hydrometallurgy, as a cooling in reducing the consumption of freshwater in the system, and minimizes the amount of wastewater to be treated

  10. Application of the 85 GHz ice scattering signature to a global study of mesoscale convective systems

    E-Print Network [OSTI]

    Devlin, Karen Irene

    1995-01-01T23:59:59.000Z

    It has long been observed that tropical convection tends to cluster, organizing into multicellular mesoscale convective systems (MCS), In convective towers, updrafts on the order of 10 m s-I favor the formation of large, precipitation-sized ice...

  11. SWS 5182: Earth System Analysis Catalogue Description: Analysis of global-scale interdependences between climate, biogeochemical

    E-Print Network [OSTI]

    Ma, Lena

    System Model Carbon sequestration and climate mitigation potential of vegetation and soils 12 - 13 Earth fuel 11 Terrestrial biogeochemistry Chapter 5 and Chapter 6 Account for land carbon cycle in your Earth

  12. The Development of an Accuracy of a Doppler Global System for One Dimensional Velocity Measurement

    E-Print Network [OSTI]

    Karabacak, Mustafa

    2014-05-23T23:59:59.000Z

    shifting of the light frequency reflected by seeded particles or rotating disc surface speed. The relationship between the Doppler shift and the transmission ratio is a key part of the DGV system to calculate measured velocity. The absorption line filter...

  13. Position Management and Classification

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2015-04-01T23:59:59.000Z

    The order establishes departmental requirements and responsibilities for classifying positions using general schedule (GS) and federal wage system (FWS) standards and for developing and administering a sound position management and classification program within the Department. Cancels Chapter VII of DOE O 320.1.

  14. Polar versus temperate grounding-line sedimentary systems and marine glacier stability during sea level rise by global warming

    SciTech Connect (OSTI)

    Powell, R.D. (Illinois Univ., DeKalb, IL (United States). Geology Dept.); Pyne, A.R. (Victoria Univ., Wellington (New Zealand). Antarctic Research Center); Hunter, L.E.; Rynes, N.R.

    1992-01-01T23:59:59.000Z

    Marine-ending glaciers may retreat with global warming as sea level rises by ocean thermal expansion. If the sea floor rises by sediment accumulation, then glaciers may not feel the effect of sea level rise. A submersible ROV and other techniques have been used to collect data from temperate and polar glaciers to compare sediment production and mass balance of their grounding-line systems. Temperature Alaskan valley glaciers flow at about 0.2--2 km/a and have high volumes of supraglacial, englacial and subglacial debris. However, most sediment contributed to the base of their tidewater cliffs comes from subglacial streams or squeezing out subglacial sediment and pushing it with other marine sediment into a morainal bank. Blue Glacier, a thin, locally fed polar glacier in Antarctica, flows slowly and has minimal glacial debris. The grounding-line system at the tidewater cliff is a morainal bank that forms solely by pushing of marine sediment. An Antarctic polar outlet glacier, Mackay Glacier, terminating as a floating glacier-tongue, has similar volumes of basal debris to Alaskan temperature glaciers and flows at 250 m/a. However, no subglacial streams issued from Mackay's grounding line and all sedimentation was by rockfall and grainfall rainout from seawater undermelt of the tongue. A grounding-line wedge of glacimarine diamicton is deposited over subglacial (lodgement ) till. Although Antarctic grounding-line accumulation rates are three orders of magnitude smaller than Alaskan rates, both are capable of compensating for predicted rises in sea level by thermal heating from global warming.

  15. A Wire Position Monitor System for the 1.3 FHZ Tesla-Style Cryomodule at the Fermilab New-Muon-Lab Accelerator

    SciTech Connect (OSTI)

    Eddy, N.; Fellenz, B.; Prieto, P.; Semenov, A.; Voy, D.C.; Wendt, M.; /Fermilab

    2011-08-17T23:59:59.000Z

    The first cryomodule for the beam test facility at the Fermilab New-Muon-Lab building is currently under RF commissioning. Among other diagnostics systems, the transverse position of the helium gas return pipe with the connected 1.3 GHz SRF accelerating cavities is measured along the {approx}15 m long module using a stretched-wire position monitoring system. An overview of the wire position monitor system technology is given, along with preliminary results taken at the initial module cooldown, and during further testing. As the measurement system offers a high resolution, we also discuss options for use as a vibration detector. An electron beam test facility, based on superconducting RF (SRF) TESLA-style cryomodules is currently under construction at the Fermilab New-Muon-Lab (NML) building. The first, so-called type III+, cryomodule (CM-1), equipped with eight 1.3 GHz nine-cell accelerating cavities was recently cooled down to 2 K, and is currently under RF conditioning. The transverse alignment of the cavity string within the cryomodule is crucial for minimizing transverse kick and beam break-up effects, generated by the high-order dipole modes of misaligned accelerating structures. An optimum alignment can only be guaranteed during the assembly of the cavity string, i.e. at room temperatures. The final position of the cavities after cooldown is uncontrollable, and therefore unknown. A wire position monitoring system (WPM) can help to understand the transverse motion of the cavities during cooldown, their final location and the long term position stability after cryo-temperatures are settled, as well as the position reproducibility for several cold-warm cycles. It also may serve as vibration sensor, as the wire acts as a high-Q resonant detector for mechanical vibrations in the low-audio frequency range. The WPM system consists out of a stretched-wire position detection system, provided with help of INFN-Milano and DESY Hamburg, and RF generation and read-out electronics, developed at Fermilab.

  16. Global equation of state of twodimensional hard sphere systems Stefan Luding

    E-Print Network [OSTI]

    Luding, Stefan

    comes important#, the kinetic theory leads to an expression for the equation of state, i the behavior of rather dilute hard sphere systems is the kinetic theory #2,3#, in which particles are assumed granular media by means of the kinetic theory are usually restricted to certain limits such as small

  17. A global equation of state of two-dimensional hard sphere systems Stefan Luding

    E-Print Network [OSTI]

    Luding, Stefan

    at which order becomes important), the kinetic theory leads to an expression for the equation of state, i the behavior of rather dilute hard sphere systems is the kinetic theory [2, 3], where particles are assumed to describe granu- lar media by means of the kinetic theory are usually restricted to certain limits like

  18. Position detectors, methods of detecting position, and methods of providing positional detectors

    DOE Patents [OSTI]

    Weinberg, David M. (Idaho Falls, ID); Harding, L. Dean (Chubbuck, ID); Larsen, Eric D. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    Position detectors, welding system position detectors, methods of detecting various positions, and methods of providing position detectors are described. In one embodiment, a welding system positional detector includes a base that is configured to engage and be moved along a curved surface of a welding work piece. At least one position detection apparatus is provided and is connected with the base and configured to measure angular position of the detector relative to a reference vector. In another embodiment, a welding system positional detector includes a weld head and at least one inclinometer mounted on the weld head. The one inclinometer is configured to develop positional data relative to a reference vector and the position of the weld head on a non-planar weldable work piece.

  19. Global stability of the rarefaction wave of the Vlasov-Poisson-Boltzmann system

    E-Print Network [OSTI]

    Renjun Duan; Shuangqian Liu

    2014-05-11T23:59:59.000Z

    This paper is devoted to the study of the nonlinear stability of the rarefaction waves of the Vlasov-Poisson-Boltzmann system with slab symmetry in the case where the electron background density satisfies an analogue of the Boltzmann relation. We allows that the electric potential may take distinct constant states at both far-fields. The rarefaction wave whose strength is not necessarily small is constructed through the quasineutral Euler equations coming from the zero-order fluid dynamic approximation of the kinetic system. We prove that the local Maxwellian with macroscopic quantities determined by the quasineutral rarefaction wave is time-asymptotically stable under small perturbations for the corresponding Cauchy problem on the Vlasov-Poisson-Boltzmann system. The main analytical tool is the combination of techniques we developed in [10] for the viscous compressible fluid with the self-consistent electric field and the reciprocal energy method based on the macro-micro decomposition of the Boltzmann equation around a local Maxwellian. Both the time decay property of the rarefaction waves and the structure of the Poisson equation play a key role in the analysis.

  20. Impact of the Position of a Radiator to Energy Consumption and Thermal Comfort in a Mixed Radiant and Convective Heating System

    E-Print Network [OSTI]

    Gong, X.; Claridge, D. E.

    2005-01-01T23:59:59.000Z

    ESL-IC-10/05-35 1 Impact of the Position of the Radiator on Energy Consumption and Thermal Comfort in a Mixed Radiant and Convective Heating System Xiangyang Gong David E... the energy consumption and thermal comfort distribution in a typical office with a mixed radiant and convective heating system for two different locations of radiant heat sources. Accurately estimating the energy consumption in a mixed heating space...

  1. Impact of the Position of a Radiator to Energy Consumption and Thermal Comfort in a Mixed Radiant and Convective Heating System

    E-Print Network [OSTI]

    Gong, X.; Claridge, D. E.

    2005-01-01T23:59:59.000Z

    ESL-IC-10/05-35 1 Impact of the Position of the Radiator on Energy Consumption and Thermal Comfort in a Mixed Radiant and Convective Heating System Xiangyang Gong David E... the energy consumption and thermal comfort distribution in a typical office with a mixed radiant and convective heating system for two different locations of radiant heat sources. Accurately estimating the energy consumption in a mixed heating space...

  2. Validation of Danish wind time series from a new global renewable energy atlas for energy system analysis

    E-Print Network [OSTI]

    Andresen, Gorm Bruun; Greiner, Martin

    2014-01-01T23:59:59.000Z

    We present a new global high-resolution renewable energy atlas (REatlas) that can be used to calculate customised hourly time series of wind and solar PV power generation. In this paper, the atlas is applied to produce 32-year-long hourly model wind power time series for Denmark for each historical and future year between 1980 and 2035. These are calibrated and validated against real production data from the period 2000 to 2010. The high number of years allows us to discuss how the characteristics of Danish wind power generation varies between individual weather years. As an example, the annual energy production is found to vary by $\\pm10\\%$ from the average. Furthermore, we show how the production pattern change as small onshore turbines are gradually replaced by large onshore and offshore turbines. In most energy system analysis tools, fixed hourly time series of wind power generation are used to model future power systems with high penetrations of wind energy. Here, we compare the wind power time series fo...

  3. A Globally Distributed System for Job, Data, and Information Handling for High Energy Physics

    SciTech Connect (OSTI)

    Garzoglio, Gabriele

    2005-12-01T23:59:59.000Z

    The computing infrastructures of the modern high energy physics experiments need to address an unprecedented set of requirements. The collaborations consist of hundreds of members from dozens of institutions around the world and the computing power necessary to analyze the data produced surpasses already the capabilities of any single computing center. A software infrastructure capable of seamlessly integrating dozens of computing centers around the world, enabling computing for a large and dynamical group of users, is of fundamental importance for the production of scientific results. Such a computing infrastructure is called a computational grid. The SAM-Grid offers a solution to these problems for CDF and DZero, two of the largest high energy physics experiments in the world, running at Fermilab. The SAM-Grid integrates standard grid middleware, such as Condor-G and the Globus Toolkit, with software developed at Fermilab, organizing the system in three major components: data handling, job handling, and information management. This dissertation presents the challenges and the solutions provided in such a computing infrastructure.

  4. Earth System Grid Center for Enabling Technologies: Building a Global Infrastructure for Climate Change Research

    SciTech Connect (OSTI)

    Williams, Dean N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Ahrens, J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Ananthakrishnan, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Bell, G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bharathi, S. [Univ. of Southern California, Marina del Ray, CA (United States). Information Science Institute; Brown, D. [National Center for Atmospheric Reserch, Boulder, CO (United States); Chen, M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Chervenak, A. L. [Univ. of Southern California, Marina del Ray, CA (United States). Information Science Institute; Cinquini, L. [National Aeronautics and Space Administration, Pasadena, CA (United States); Drach, R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Foster, I. T. [Argonne National Lab. (ANL), Argonne, IL (United States); Fox, P. [Rensselaer Polytechnic Inst., Troy, NY (United States); Hankin, S. [National Oceanic and Atmospheric Administration (PMEL), Seattle, WA (United States); Harper, D. [National Center for Atmospheric Reserch, Boulder, CO (United States); Hook, N. [National Center for Atmospheric Reserch, Boulder, CO (United States); Jones, P. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Middleton, D. E. [National Center for Atmospheric Reserch, Boulder, CO (United States); Miller, R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Nienhouse, E. [National Center for Atmospheric Reserch, Boulder, CO (United States); Schweitzer, R. [National Oceanic and Atmospheric Administration (PMEL), Seattle, WA (United States); Schuler, R. [Univ. of Southern California, Marina del Ray, CA (United States). Information Science Institute; Shipman, G. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shoshani, A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Siebenlist, F. [Argonne National Lab. (ANL), Argonne, IL (United States); Sim, A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Strand, W. G. [National Center for Atmospheric Reserch, Boulder, CO (United States); Wang, F. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Wilcox, H. [National Center for Atmospheric Reserch, Boulder, CO (United States); Wilhelmi, N. [National Center for Atmospheric Reserch, Boulder, CO (United States)

    2010-08-16T23:59:59.000Z

    Established within DOEs Scientific Discovery through Advanced Computing (SciDAC-) 2 program, with support from ASCR and BER, the Earth System Grid Center for Enabling Technologies (ESG-CET) is a consortium of seven laboratories (Argonne National Laboratory [ANL], Los Alamos National Laboratory [LANL], Lawrence Berkeley National Laboratory [LBNL], Lawrence Livermore National Laboratory [LLNL], National Center for Atmospheric Research [NCAR], Oak Ridge National Laboratory [ORNL], and Pacific Marine Environmental Laboratory [PMEL]), and two institutes (Rensselaer Polytechnic Institute [RPI] and the University of Southern California, Information Sciences Institute [USC/ISI]). The consortiums mission is to provide climate researchers worldwide with a science gateway to access data, information, models, analysis tools, and computational capabilities required to evaluate extreme-scale data sets. Its stated goals are to (1) make data more useful to climate researchers by developing collaborative technology that enhances data usability; (2) meet the specific needs that national and international climate projects have for distributed databases, data access, and data movement; (3) provide a universal and secure web-based data access portal for broad-based multi-model data collections; and (4) provide a wide range of climate data-analysis tools and diagnostic methods to international climate centers and U.S. government agencies. To this end, the ESG-CET is working to integrate all highly publicized climate data setsfrom climate simulations to observationsusing distributed storage management, remote high-performance units, high-bandwidth wide-area networks, and user desktop platforms in a collaborative problem-solving environment.

  5. The effects of potential changes in United States beef production on global grazing systems and greenhouse gas emissions

    E-Print Network [OSTI]

    Zhou, Yaoqi

    and greenhouse gas emissions Jerome Dumortier1 , Dermot J Hayes2 , Miguel Carriquiry2 , Fengxia Dong3 , Xiaodong in the U.S. causes a net increase in GHG emissions on a global scale. We couple a global agricultural production in the United States. The effects on emissions from agricultural production (i.e., methane

  6. Position: Postdoctoral Researcher Large-Scale Earth System Science Visualization Salary: $31,044 -$35,000

    E-Print Network [OSTI]

    Zender, Charles

    ,044 - $35,000 Starting Date: February 2004 The Cal-(IT)2 Center of Gravity and the Earth System Modeling, enabling the real-time visualization and steering of Earth system model simulations. Particular application

  7. Global Energy Management System

    E-Print Network [OSTI]

    Eidt, B. D.

    2005-01-01T23:59:59.000Z

    Exxon Mobil Corporation has undertaken voluntary actions to continuously improve energy efficiency in our operations for many years. From 1973 to 1999, we improved the energy efficiency of our refineries and chemical plants by over 35 percent...

  8. accuracy integrated global: Topics by E-print Network

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

    Cortical systems for local and global integration in discourse comprehension Giovanna Egidi a, Biology and Medicine Websites Summary: Cortical systems for local and global...

  9. IDENTIFICATION OF EROSIONAL HOTSPOTS AND SHORELINE POSITION UTILIZING AN ALONGSHORE SHORELINE MONITORING SYSTEM: GALVESTON ISLANDS WEST END

    E-Print Network [OSTI]

    McInnes, Andrew J.

    2006-07-11T23:59:59.000Z

    database. The quantification of offsets was conducted in ArcMap after the creation of polyline shapefiles using the MATLAB output of mean x and y points for the period of interest. An additional shapefile was created composed of a grid of shore... at the same position alongshore for any wetline of interest (figure 5). After the importing of the shapefiles of the surveys under consideration, the reference line of interest is imported (for this project the baseline was the meanline of the second...

  10. Offered: Offered: Position(s): Position(s)

    E-Print Network [OSTI]

    New Hampshire, University of

    development lifecycle: High Level Avionics System Requirements/Architecture Design and Development Software Performance Software team as a Software Engineer will enable you to participate in the design and development Detailed Design/Development Software Debug/Integration Formal and Informal Software Test Development

  11. A tremor and slip event on the CocosCaribbean subduction zone as measured by a global positioning system (GPS) and seismic

    E-Print Network [OSTI]

    Biggs, Juliet

    . Dixon,1 Susan Y. Schwartz,2 Jacob I. Walter,2 Marino Protti,3 Victor Gonzalez,3 J. Biggs,1,4 Martin. Y. Schwartz, J. I. Walter, M. Protti, V. Gonzalez, J. Biggs, M. Thorwart, and W. Rabbel (2010

  12. Simulated Performance of Algorithms for the Localization of Radioactive Sources from a Position Sensitive Radiation Detecting System (COCAE)

    SciTech Connect (OSTI)

    Karafasoulis, K. [Greek Atomic Energy Commission, Patriarxou Grigoriou and Neapoleos, 15310, Athens (Greece); Hellenic Army Academy, 16673 Vari (Greece); Zachariadou, K. [Greek Atomic Energy Commission, Patriarxou Grigoriou and Neapoleos, 15310, Athens (Greece); Technological Educational Institute of Piraeus, Thivon 250, 12244, Egaleo (Greece); Seferlis, S.; Kaissas, I.; Potiriadis, C. [Greek Atomic Energy Commission, Patriarxou Grigoriou and Neapoleos, 15310, Athens (Greece); Lambropoulos, C. [Technological Educational Institute of Chalkida, Psachna Evias, 34400 Greece (Greece); Loukas, D. [Institute of Nuclear Physics, National Center for Scientific Research Demokritos 15310, Athens (Greece)

    2011-12-13T23:59:59.000Z

    Simulation studies are presented regarding the performance of algorithms that localize point-like radioactive sources detected by a position sensitive portable radiation instrument (COCAE). The source direction is estimated by using the List Mode Maximum Likelihood Expectation Maximization (LM-ML-EM) imaging algorithm. Furthermore, the source-to-detector distance is evaluated by three different algorithms based on the photo-peak count information of each detecting layer, the quality of the reconstructed source image, and the triangulation method. These algorithms have been tested on a large number of simulated photons over a wide energy range (from 200 keV to 2 MeV) emitted by point-like radioactive sources located at different orientations and source-to-detector distances.

  13. Global solutions of restricted open-shell Hartree-Fock theory from semidefinite programming with applications to strongly correlated quantum systems

    SciTech Connect (OSTI)

    Veeraraghavan, Srikant; Mazziotti, David A., E-mail: damazz@uchicago.edu [Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637 (United States)

    2014-03-28T23:59:59.000Z

    We present a density matrix approach for computing global solutions of restricted open-shell Hartree-Fock theory, based on semidefinite programming (SDP), that gives upper and lower bounds on the Hartree-Fock energy of quantum systems. While wave function approaches to Hartree-Fock theory yield an upper bound to the Hartree-Fock energy, we derive a semidefinite relaxation of Hartree-Fock theory that yields a rigorous lower bound on the Hartree-Fock energy. We also develop an upper-bound algorithm in which Hartree-Fock theory is cast as a SDP with a nonconvex constraint on the rank of the matrix variable. Equality of the upper- and lower-bound energies guarantees that the computed solution is the globally optimal solution of Hartree-Fock theory. The work extends a previously presented method for closed-shell systems [S. Veeraraghavan and D. A. Mazziotti, Phys. Rev. A 89, 010502R (2014)]. For strongly correlated systems the SDP approach provides an alternative to the locally optimized Hartree-Fock energies and densities with a certificate of global optimality. Applications are made to the potential energy curves of C{sub 2}, CN, Cr {sub 2}, and NO {sub 2}.

  14. SU-E-T-132: Dosimetric Impact of Positioning Errors in Hypo-Fractionated Cranial Radiation Therapy Using Frameless Stereotactic BrainLAB System

    SciTech Connect (OSTI)

    Keeling, V; Jin, H; Ali, I; Ahmad, S [Oklahoma Univ. Health Science Ctr., Oklahoma City, OK (United States)

    2014-06-01T23:59:59.000Z

    Purpose: To determine dosimetric impact of positioning errors in the stereotactic hypo-fractionated treatment of intracranial lesions using 3Dtransaltional and 3D-rotational corrections (6D) frameless BrainLAB ExacTrac X-Ray system. Methods: 20 cranial lesions, treated in 3 or 5 fractions, were selected. An infrared (IR) optical positioning system was employed for initial patient setup followed by stereoscopic kV X-ray radiographs for position verification. 6D-translational and rotational shifts were determined to correct patient position. If these shifts were above tolerance (0.7 mm translational and 1 rotational), corrections were applied and another set of X-rays was taken to verify patient position. Dosimetric impact (D95, Dmin, Dmax, and Dmean of planning target volume (PTV) compared to original plans) of positioning errors for initial IR setup (XC: Xray Correction) and post-correction (XV: X-ray Verification) was determined in a treatment planning system using a method proposed by Yue et al. (Med. Phys. 33, 21-31 (2006)) with 3D-translational errors only and 6D-translational and rotational errors. Results: Absolute mean translational errors (standard deviation) for total 92 fractions (XC/XV) were 0.790.88/0.190.15 mm (lateral), 1.661.71/0.18 0.16 mm (longitudinal), 1.951.18/0.150.14 mm (vertical) and rotational errors were 0.610.47/0.170.15 (pitch), 0.550.49/0.160.24 (roll), and 0.680.73/0.160.15 (yaw). The average changes (loss of coverage) in D95, Dmin, Dmax, and Dmean were 4.57.3/0.10.2%, 17.822.5/1.12.5%, 0.41.4/0.10.3%, and 0.91.7/0.00.1% using 6Dshifts and 3.15.5/0.00.1%, 14.220.3/0.81.7%, 0.01.2/0.10.3%, and 0.71.4/0.00.1% using 3D-translational shifts only. The setup corrections (XC-XV) improved the PTV coverage by 4.47.3% (D95) and 16.723.5% (Dmin) using 6D adjustment. Strong correlations were observed between translation errors and deviations in dose coverage for XC. Conclusion: The initial BrainLAB IR system based on rigidity of the mask-frame setup is not sufficient for accurate stereotactic positioning; however, with X-ray imageguidance sub-millimeter accuracy is achieved with negligible deviations in dose coverage. The angular corrections (mean angle summation=1.84) are important and cause considerable deviations in dose coverage.

  15. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, VOL. X, NO. X, JUNE 2008 1 Schedulability analysis of global scheduling

    E-Print Network [OSTI]

    Lipari, Giuseppe

    analysis of global scheduling algorithms on multiprocessor platforms Marko Bertogna, Michele Cirinei and sporadic real-time task sets with constrained deadlines preemptively scheduled on a multiprocessor platform to two typical scheduling algorithms: Earliest Deadline First (EDF) and Fixed Priority (FP). Then

  16. Global Control of Complex Power Systems David J. Hill 1 , Yi Guo 2 , Mats Larsson 3 , and Youyi Wang 4

    E-Print Network [OSTI]

    Guo, Yi

    will be illustrated by consideration of coordinated control for transient stability, voltage regulation and emergency advanced modern control have been absorbed such as dy namic programming, model predictive control. The overall framework to devise controllers which deal with complexity is called global control. Models

  17. A simple object-oriented and open source model for scientific and policy analyses of the global climate systemHector v1.0

    SciTech Connect (OSTI)

    Hartin, Corinne A.; Patel, Pralit L.; Schwarber, Adria; Link, Robert P.; Bond-Lamberty, Benjamin

    2015-01-01T23:59:59.000Z

    Simple climate models play an integral role in policy and scientific communities. They are used for climate mitigation scenarios within integrated assessment models, complex climate model emulation, and uncertainty analyses. Here we describe Hector, an open source, object-oriented, simple global climate carbon-cycle model. This model runs essentially instantaneously while still representing the most critical global scale earth system processes. Hector has three main carbon pools: an atmosphere, land, and ocean. The models terrestrial carbon cycle includes respiration and primary production, accommodating arbitrary geographic divisions into, e.g., ecological biomes or political units. Hectors actively solves the inorganic carbon system in the surface ocean, directly calculating air-sea fluxes of carbon and ocean pH. Hector reproduces the global historical trends of atmospheric [CO2] and surface temperatures. The model simulates all four Representative Concentration Pathways with high correlations (R >0.7) with current observations, MAGICC (a well-known simple climate model), and the Coupled Model Intercomparison Project version 5. Hector is freely available under an open source license, and its modular design will facilitate a broad range of research in various areas.

  18. Computer-Aided Civil and Infrastructure Engineering 28 (2013) 325343 Plane Registration Leveraged by Global Constraints

    E-Print Network [OSTI]

    Kamat, Vineet R.

    2013-01-01T23:59:59.000Z

    such as construction sites with all kinds of machines moving around, not to men- tion the sensor's annoying jitter these as the registra- tion problem in this article. Despite the rapid development of sensor techno- logy--such as the global positioning system (GPS) and inertial measurement units (IMU), as well as angle sensors like

  19. Global Evaluation of the ISBA-TRIP Continental Hydrological System. Part I: Comparison to GRACE Terrestrial Water Storage Estimates

    E-Print Network [OSTI]

    Ribes, Aurlien

    In earth system models, the partitioning of precipitation among the variations of continental water storage climate system sim- ulated by earth system models (ESMs). The continental freshwater reservoirs represent

  20. Global warming and global dioxide emission: An empirical study

    SciTech Connect (OSTI)

    Linyan Sun [Xian Jiaotong Univ., Shaanxi (China); Wang, M. [Saint Mary`s Univ., Halifax, Nova Scotia (Canada)

    1996-04-01T23:59:59.000Z

    In this paper, the dynamic relationship between global surface temperature (global warming) and global carbon dioxide emission (CO{sub 2}) is modelled and analyzed by causality and spectral analysis in the time domain and frequency domain, respectively. Historical data of global CO{sub 2} emission and global surface temperature anomalies over 129 years from 1860-1988 are used in this study. The causal relationship between the two phenomena is first examined using the Sim and Granger causality test in the time domain after the data series are filtered by ARIMA models. The Granger causal relationship is further scrutinized and confirmed by cross-spectral and multichannel spectral analysis in the frequency domain. The evidence found from both analyses proves that there is a positive causal relationship between the two variables. The time domain analysis suggests that Granger causality exists between global surface temperature and global CO{sub 2} emission. Further, CO{sub 2} emission causes the change in temperature. The conclusions are further confirmed by the frequency domain analysis, which indicates that the increase in CO{sub 2} emission causes climate warming because a high coherence exists between the two variables. Furthermore, it is proved that climate changes happen after an increase in CO{sub 2} emission, which confirms that the increase in CO{sub 2} emission does cause global warming. 27 refs., 10 figs., 5 tabs.

  1. Method and apparatus for routing data in an inter-nodal communications lattice of a massively parallel computer system by dynamic global mapping of contended links

    DOE Patents [OSTI]

    Archer, Charles Jens (Rochester, MN); Musselman, Roy Glenn (Rochester, MN); Peters, Amanda (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Swartz, Brent Allen (Chippewa Falls, WI); Wallenfelt, Brian Paul (Eden Prairie, MN)

    2011-10-04T23:59:59.000Z

    A massively parallel nodal computer system periodically collects and broadcasts usage data for an internal communications network. A node sending data over the network makes a global routing determination using the network usage data. Preferably, network usage data comprises an N-bit usage value for each output buffer associated with a network link. An optimum routing is determined by summing the N-bit values associated with each link through which a data packet must pass, and comparing the sums associated with different possible routes.

  2. Global tree network for computing structures enabling global processing operations

    DOE Patents [OSTI]

    Blumrich; Matthias A. (Ridgefield, CT); Chen, Dong (Croton-On-Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Hoenicke, Dirk (Ossining, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2010-01-19T23:59:59.000Z

    A system and method for enabling high-speed, low-latency global tree network communications among processing nodes interconnected according to a tree network structure. The global tree network enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the tree via links to facilitate performance of low-latency global processing operations at nodes of the virtual tree and sub-tree structures. The global operations performed include one or more of: broadcast operations downstream from a root node to leaf nodes of a virtual tree, reduction operations upstream from leaf nodes to the root node in the virtual tree, and point-to-point message passing from any node to the root node. The global tree network is configurable to provide global barrier and interrupt functionality in asynchronous or synchronized manner, and, is physically and logically partitionable.

  3. Positive Amplitudes In The Amplituhedron

    E-Print Network [OSTI]

    Nima Arkani-Hamed; Andrew Hodges; Jaroslav Trnka

    2014-12-29T23:59:59.000Z

    The all-loop integrand for scattering amplitudes in planar N = 4 SYM is determined by an "amplitude form" with logarithmic singularities on the boundary of the amplituhedron. In this note we provide strong evidence for a new striking property of the superamplitude, which we conjecture to be true to all loop orders: the amplitude form is positive when evaluated inside the amplituhedron. The statement is sensibly formulated thanks to the natural "bosonization" of the superamplitude associated with the amplituhedron geometry. However this positivity is not manifest in any of the current approaches to scattering amplitudes, and in particular not in the cellulations of the amplituhedron related to on-shell diagrams and the positive grassmannian. The surprising positivity of the form suggests the existence of a "dual amplituhedron" formulation where this feature would be made obvious. We also suggest that the positivity is associated with an extended picture of amplituhedron geometry, with the amplituhedron sitting inside a co-dimension one surface separating "legal" and "illegal" local singularities of the amplitude. We illustrate this in several simple examples, obtaining new expressions for amplitudes not associated with any triangulations, but following in a more invariant manner from a global view of the positive geometry.

  4. ANNOUNCEMENT NUCLEAR ENGINEERING FACULTY POSITION

    E-Print Network [OSTI]

    Tennessee, University of

    ANNOUNCEMENT NUCLEAR ENGINEERING FACULTY POSITION The Department of Nuclear Engineering at the Assistant or Associate Professor level. These areas include, but are not limited to, nuclear system instrumentation & controls, monitoring and diagnostics, reactor dynamics, nuclear security, nuclear materials

  5. Global Health Research | 2 Global Health Research

    E-Print Network [OSTI]

    Rambaut, Andrew

    Global Health Research | 2 Global Health Research Supporting researchers in low- and middle-income countries to carry out health- related research within their own countries. Gl bal Health #12;3 | Global Health Research #12;Global Health Research | 4 We are a global charitable foundation dedicated

  6. Position Paper for NSF-NIST-USCAR Workshop on Cyber-Physical Systems Fault Diagnosis and Prognosis in a Network of Embedded Systems in Automotive Vehicles

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    in a Network of Embedded Systems in Automotive Vehicles K. Pattipati1, C. Sankavaram1, B. Wang2, P. Zhang1, Y Identification The relentless competition among automotive companies and increased demands from customers poor vehicle performance increases maintenance costs to customers and warranty costs to automotive

  7. Testing a Coupled Global-limited-area Data Assimilation System Using Observations from the 2004 Pacific Typhoon Season

    E-Print Network [OSTI]

    Holt, Christina

    2012-10-19T23:59:59.000Z

    by the Statistical Spectral Interpolation, which was the operational data assimilation system of NCEP in 2004. The GFS Operational analysis assimilated a large number of satellite radiance observations in addition to the observations assimilated in our system. All...

  8. Long range global warming

    SciTech Connect (OSTI)

    Rolle, K.C.; Pulkrabek, W.W.; Fiedler, R.A. [Univ. of Wisconsin, Platteville, WI (United States)

    1995-12-31T23:59:59.000Z

    This paper explores one of the causes of global warming that is often overlooked, the direct heating of the environment by engineering systems. Most research and studies of global warming concentrate on the modification that is occurring to atmospheric air as a result of pollution gases being added by various systems; i.e., refrigerants, nitrogen oxides, ozone, hydrocarbons, halon, and others. This modification affects the thermal radiation balance between earth, sun and space, resulting in a decrease of radiation outflow and a slow rise in the earth`s steady state temperature. For this reason the solution to the problem is perceived as one of cleaning up the processes and effluents that are discharged into the environment. In this paper arguments are presented that suggest, that there is a far more serious cause for global warming that will manifest itself in the next two or three centuries; direct heating from the exponential growth of energy usage by humankind. Because this is a minor contributor to the global warming problem at present, it is overlooked or ignored. Energy use from the combustion of fuels and from the output of nuclear reactions eventually is manifest as warming of the surroundings. Thus, as energy is used at an ever increasing rate the consequent global warming also increases at an ever increasing rate. Eventually this rate will become equal to a few percent of solar radiation. When this happens the earth`s temperature will have risen by several degrees with catastrophic results. The trends in world energy use are reviewed and some mathematical models are presented to suggest future scenarios. These models can be used to predict when the global warming problem will become undeniably apparent, when it will become critical, and when it will become catastrophic.

  9. Global Evaluation of the ISBA-TRIP Continental Hydrological System. Part II: Uncertainties in River Routing Simulation Related to Flow

    E-Print Network [OSTI]

    Boyer, Edmond

    the entire globe. RRMs have been introduced into earth system models (ESMs) to convert the runoff simulated

  10. Understanding Global Capitalism

    E-Print Network [OSTI]

    Robinson, William I.

    2008-01-01T23:59:59.000Z

    sociology; globalization; political economy; development;economy fueled through 700 billion dollars injected into globalizationGlobalization Studies, also called CGS. I would economy and

  11. 125 November 2013 PRESENT POSITION

    E-Print Network [OSTI]

    courtesy) Department of Global Ecology Department of Environmental Earth System Sciences Carnegie, Philosophy PRIOR RESEARCH EXPERIENCE Physicist/Environmental Scientist (Lawrence Livermore National, 1-16. doi: 10.1007/s00382-012-1495-9 Caldeira, K., KL Ricke (2013) Prudence on solar climate

  12. The Department of Industrial and Systems Engineering is accepting applications for open rank non-tenure track faculty positions for academic year 2014-2015. All positions require teaching undergraduate and/or

    E-Print Network [OSTI]

    The Department of Industrial and Systems Engineering is accepting applications for open rank non/or graduate courses related to Industrial and Systems Engineering, and service to the department. A successful of Industrial and Systems Engineering provides competitive compensation packages and benefits. To apply, please

  13. Your Guide to the Global Leadership

    E-Print Network [OSTI]

    Saidak, Filip

    GLP HANDBOOK Your Guide to the Global Leadership Program at 2011-2012 #12;GLP Handbook 2 From plan as one of five strategic directions for the next five years. UNCG's Global Leadership Program proven their potential for a leadership position and possess the knowledge and skills to function

  14. Global Scratch Upgrade in Progress

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

    Rates, Connection to PDSF October 29, 2013 The most used file system at the National Energy Research Scientific Computing Center (NERSC)-global scratch-just got an upgrade. As...

  15. Management processes in U.S. air traffic management modernization : a study of global navigation satellite system development

    E-Print Network [OSTI]

    Sandvig, John H.

    1994-01-01T23:59:59.000Z

    This thesis investigates organization and management issues associated with the Federal Aviation Administration's (FAA) efforts to modernize the nation's Air Traffic Management (ATM) system. Focus is placed specifically ...

  16. Global Warming

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal Heat Pump Basics31/2007 TeppeiProgramsGlobal1

  17. Academy for Global Engagement

    E-Print Network [OSTI]

    Academy for Global Engagement 2013-2014 Global Fellows #12;Meredith Gore and Wildlife #12;Global Research Interests · risk percepHon and public support and Agricultural Engineering #12;Global Research Interests · catalyHc conversion of biomass

  18. global warming's six indias

    E-Print Network [OSTI]

    Haller, Gary L.

    global warming's six indias: An Audience Segmentation Analysis #12;Global Warming's Six Indias 1............................................................................................................................................20 2. Global Warming Beliefs and Attitudes................................................................................ 21 Knowledge about global warming varies widely by group

  19. How Minds Work Global Workspace Theory

    E-Print Network [OSTI]

    Memphis, University of

    1 How Minds Work Global Workspace Theory Stan Franklin Computer Science Division & Institute for Intelligent Systems The University of Memphis #12;February 3, 2005 HMW: Global Workspace Theory 2 Global Workspace Theory · A Theory of Consciousness · A Theory of Cognition · A Theory of Mind #12;February 3

  20. Observed Characteristics of Clouds and Precipitating Systems Associated with the Tropical Circulation in Global Models and Reanalyses

    E-Print Network [OSTI]

    Stachnik, Justin Paul

    2013-03-25T23:59:59.000Z

    This dissertation presents a series of work related to the representation of the Hadley circulation (HC) in atmospheric reanalyses and general circulation models (GCMs), with connections to the underlying tropical and subtropical cloud systems...

  1. Sandia National Laboratories: General Electric Global Research

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

    and development agreements (CRADAs) with Northrop Grumman Information Systems and General Electric Global Research that will broadly add to the Labs' research. "These...

  2. Administrative/Professional Position # 113265 HUMAN RESOURCES

    E-Print Network [OSTI]

    phase of the software systems development life cycle involving twenty or more business processes solutions supporting client requirements with proficiency in all phases of the systems development life Development & Systems Integration) Name of Employee: Department: Applications & Technology Position Reports

  3. International conference on the role of the polar regions in global change: Proceedings. Volume 2

    SciTech Connect (OSTI)

    Weller, G.; Wilson, C.L.; Severin, B.A.B. [eds.

    1991-12-01T23:59:59.000Z

    The International Conference on the Role of the Polar Regions in Global Change took place on the campus of the University of Alaska Fairbanks on June 11--15, 1990. The goal of the conference was to define and summarize the state of knowledge on the role of the polar regions in global change, and to identify gaps in knowledge. To this purpose experts in a wide variety of relevant disciplines were invited to present papers and hold panel discussions. While there are numerous conferences on global change, this conference dealt specifically with the polar regions which occupy key positions in the global system. These two volumes of conference proceedings include papers on (1) detection and monitoring of change; (2) climate variability and climate forcing; (3) ocean, sea ice, and atmosphere interactions and processes; and (4) effects on biota and biological feedbacks; (5) ice sheet, glacier and permafrost responses and feedbacks, (6) paleoenvironmental studies; and, (7) aerosol and trace gases.

  4. International conference on the role of the polar regions in global change: Proceedings. Volume 1

    SciTech Connect (OSTI)

    Weller, G.; Wilson, C.L.; Severin, B.A.B. [eds.

    1991-12-01T23:59:59.000Z

    The International Conference on the Role of the Polar Regions in Global Change took place on the campus of the University of Alaska Fairbanks on June 11--15, 1990. The goal of the conference was to define and summarize the state of knowledge on the role of the polar regions in global change, and to identify gaps in knowledge. To this purpose experts in a wide variety of relevant disciplines were invited to present papers and hold panel discussions. While there are numerous conferences on global change, this conference dealt specifically with polar regions which occupy key positions in the global system. These two volumes of conference proceedings include papers on (1) detection and monitoring of change; (2) climate variability and climate forcing; (3) ocean, sea ice, and atmosphere interactions and processes; (4) effects on biota and biological feedbacks; (5) ice sheet, glacier and permafrost responses and feedbacks; (6) paleoenvironmental studies; and, (7) aerosols and trace gases.

  5. Further results on saturated globally stabilizing linear state feedback control laws for single-input neutrally stable planar systems

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    -input neutrally stable planar systems Tao Yang1, Anton A. Stoorvogel2, Ali Saberi3, and Karl H. Johansson1 of Ali Saberi is partially supported by National Science Foundation grant NSF-0901137, NAVY grants ONRSchool of Electrical Engineering and Computer Science, Washington State University, U.S.A. E-mail: saberi

  6. Gille-ESYS 10 1 EPA Global Warming: Position Papers

    E-Print Network [OSTI]

    Gille, Sarah T.

    . International Emissions Trading The Kyoto Protocol allows nations with emissions targets to trade greenhouse gas successful beyond expectations. Under an emissions trading regime, countries or companies can purchase less their targets with room to spare). Structured effectively, emissions trading can provide a powerful economic

  7. Impact of Postmastectomy Radiation on Locoregional Recurrence in Breast Cancer Patients With 1-3 Positive Lymph Nodes Treated With Modern Systemic Therapy

    SciTech Connect (OSTI)

    Tendulkar, Rahul D., E-mail: tendulr@ccf.org [Department of Radiation Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States); Rehman, Sana; Shukla, Monica E.; Reddy, Chandana A. [Department of Radiation Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States)] [Department of Radiation Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States); Moore, Halle; Budd, G. Thomas [Department of Solid Tumor Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States)] [Department of Solid Tumor Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States); Dietz, Jill; Crowe, Joseph P. [Department of General Surgery, Cleveland Clinic Foundation, Cleveland, Ohio (United States)] [Department of General Surgery, Cleveland Clinic Foundation, Cleveland, Ohio (United States); Macklis, Roger [Department of Radiation Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States)] [Department of Radiation Oncology, Cleveland Clinic Foundation, Cleveland, Ohio (United States)

    2012-08-01T23:59:59.000Z

    Purpose: Postmastectomy radiation therapy (PMRT) remains controversial for patients with 1-3 positive lymph nodes (LN+). Methods and Materials: We conducted a retrospective review of all 369 breast cancer patients with 1-3 LN+ who underwent mastectomy without neoadjuvant systemic therapy between 2000 and 2007 at Cleveland Clinic. Results: We identified 271 patients with 1-3 LN+ who did not receive PMRT and 98 who did receive PMRT. The median follow-up time was 5.2 years, and the median number of LN dissected was 11. Of those not treated with PMRT, 79% received adjuvant chemotherapy (of whom 70% received a taxane), 79% received hormonal therapy, and 5% had no systemic therapy. Of the Her2/neu amplified tumors, 42% received trastuzumab. The 5-year rate of locoregional recurrence (LRR) was 8.9% without PMRT vs 0% with PMRT (P=.004). For patients who did not receive PMRT, univariate analysis showed 6 risk factors significantly (P<.05) correlated with LRR: estrogen receptor/progesterone receptor negative (hazard ratio [HR] 2.6), lymphovascular invasion (HR 2.4), 2-3 LN+ (HR 2.6), nodal ratio >25% (HR 2.7), extracapsular extension (ECE) (HR 3.7), and Bloom-Richardson grade III (HR 3.1). The 5-year LRR rate was 3.4% (95% confidence interval [CI], 0.1%-6.8%] for patients with 0-1 risk factor vs 14.6% [95% CI, 8.4%-20.9%] for patients with {>=}2 risk factors (P=.0006), respectively. On multivariate analysis, ECE (HR 4.3, P=.0006) and grade III (HR 3.6, P=.004) remained significant risk factors for LRR. The 5-year LRR was 4.1% in patients with neither grade III nor ECE, 8.1% with either grade III or ECE, and 50.4% in patients with both grade III and ECE (P<.0001); the corresponding 5-year distant metastasis-free survival rates were 91.8%, 85.4%, and 59.1% (P=.0004), respectively. Conclusions: PMRT offers excellent control for patients with 1-3 LN+, with no locoregional failures to date. Patients with 1-3 LN+ who have grade III disease and/or ECE should be strongly considered for PMRT.

  8. MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University of Missouri-Rolla, 1006 Kingshighway, Rolla MO, 65409-0660, USA. Tel

    E-Print Network [OSTI]

    Maerz, Norbert H.

    Surveyor® : MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University classified inventories annotated with object dimensions, object position relative to the road, and global collection, Highway measurements, Instrumented vehicle, Highway inventory management, Infrastructure

  9. Global Predictions

    E-Print Network [OSTI]

    Swyden, Courtney

    2006-01-01T23:59:59.000Z

    demographics, socioeconomic factors and public health information. GIS technology is a computerized system that can capture, store, process and analyze spatial data. The lab uses GIS to produce the Texas Spatial Information System Web site. The Web site... to forecast change tx H2O | pg. 22 tx H2O | pg. 23 KBDI represents dryness and wetness in Texas counties on a scale of 0 (no moisture depletion) to 800 (absolutely dry conditions) and are used to estimate forest fire potential. A county with an index...

  10. JOB DESCRIPTION POSITION DATA

    E-Print Network [OSTI]

    Harms, Kyle E.

    JOB DESCRIPTION POSITION DATA Position Number: Title Description: Title Code: Title Level: Employee: _____ Job Summary: Overview of position and its purpose. Select One Select One Select One Select One Select One Select One Select One Select One Select One Select One #12;Office of Human Resource Management Job

  11. APPLICATION FOR EMPLOYMENT FACULTY POSITIONS

    E-Print Network [OSTI]

    Bennett, Gisele

    APPLICATION FOR EMPLOYMENT FACULTY POSITIONS GEORGIA INSTITUTE OF TECHNOLOGY Atlanta, Georgia 30332-0435 A Unit of the University System of Georgia An Equal Education and Employment Opportunity Institution sought ( ) Full-time ( ) Part-time How did you learn of employment opportunities at Georgia Tech? List

  12. Sandia Energy - Global

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementing Nonlinear757 (1)Tara46EnergyPower Systems Glitter-SizedGlobal

  13. Clean coal: Global opportunities for small businesses

    SciTech Connect (OSTI)

    NONE

    1998-01-01T23:59:59.000Z

    The parallel growth in coal demand and environmental concern has spurred interest in technologies that burn coal with greater efficiency and with lower emissions. Clean Coal Technologies (CCTs) will ensure that continued use of the world`s most abundant energy resource is compatible with a cleaner, healthier environment. Increasing interest in CCTs opens the door for American small businesses to provide services and equipment for the clean and efficient use of coal. Key players in most coal-related projects are typically large equipment manufacturers, power project developers, utilities, governments, and multinational corporations. At the same time, the complexity and scale of many of these projects creates niche markets for small American businesses with high-value products and services. From information technology, control systems, and specialized components to management practices, financial services, and personnel training methods, small US companies boast some of the highest value products and services in the world. As a result, American companies are in a prime position to take advantage of global niche markets for CCTs. This guide is designed to provide US small businesses with an overview of potential international market opportunities related to CCTs and to provide initial guidance on how to cost-effectively enter that growing global market.

  14. A Global Optimization Approach to Quantum Mechanics

    E-Print Network [OSTI]

    Xiaofei Huang

    2006-05-25T23:59:59.000Z

    This paper presents a global optimization approach to quantum mechanics, which describes the most fundamental dynamics of the universe. It suggests that the wave-like behavior of (sub)atomic particles could be the critical characteristic of a global optimization method deployed by nature so that (sub)atomic systems can find their ground states corresponding to the global minimum of some energy function associated with the system. The classic time-independent Schrodinger equation is shown to be derivable from the global optimization method to support this argument.

  15. QUESTIONS ABOUT GLOBAL WARMING

    E-Print Network [OSTI]

    QUESTIONS ABOUT GLOBAL WARMING IS IT REAL? IS IT IMPORTANT? WHAT IS IT DUE TO? HOW MUCH MORE in the atmosphere, giving Earth its temperate climate. Global Atmosphere, Global Warming GLOBAL TEMPERATURE TREND IS THIS CARBON DIOXIDE COMING FROM? Other sources are home heating and electric power production. WE ARE ALL

  16. Global Health Seminar Series

    E-Print Network [OSTI]

    Klein, Ophir

    Bay Area Global Health Seminar Series Moving beyond millennium targets in global health: The challenges of investing in health and universal health coverage Although targets can help to focus global health efforts, they can also detract attention from deeper underlying challenges in global health

  17. Global Warming Observations

    E-Print Network [OSTI]

    Schofield, Jeremy

    Global Warming Observations: 1. Global temperature has been gradually rising in recent years #15 in range 8000 12000 nm { CFC's, methane and N 2 O important for global warming even though concentra- tions in concentration of \\greenhouse gases" like CO 2 What determines global temperature? Energy budget of earth: 1

  18. Systems integration for global sustainability

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    Liu et al. , Framing sustainability in a telecoupled world.teleconnections and sustainability. Proc. Natl. Acad. Sci.framework for analyzing sustainability of social-ecological

  19. Systems integration for global sustainability

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    and climate change affects energy demand such as heating andnexus and energy-food-water nexus. Rising demand for ethanol

  20. Introducing the Globally Harmonized System

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    explosion is an explosion caused by the rupture of a vessel containing a pressurized liquid above its to be protected from the possibility of a fire in the lab And remember that cooling are chemicals that can react with solvents to cause a fire. Examples of oxidizers are nitric acid

  1. Systems integration for global sustainability

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    Understanding carbon lock-in. Energy Policy 28, 817830 (J. Wang et al. , Chinas waterenergy nexus: Greenhouse-gascapture and storage, bio-energy with carbon capture and

  2. New Global Scratch File System

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337, 2011R - 445 CU - 2SCIENCE

  3. The NERSC Global File System

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's Lower MantleThe

  4. Beam position monitor

    DOE Patents [OSTI]

    Alkire, Randy W.; Rosenbaum, Gerold; Evans, Gwyndaf

    2003-07-22T23:59:59.000Z

    An apparatus for determining the position of an x-ray beam relative to a desired beam axis. Where the apparatus is positioned along the beam path so that a thin metal foil target intersects the x-ray beam generating fluorescent radiation. A PIN diode array is positioned so that a portion of the fluorescent radiation is intercepted by the array resulting in an a series of electrical signals from the PIN diodes making up the array. The signals are then analyzed and the position of the x-ray beam is determined relative to the desired beam path.

  5. The Department of Industrial and Systems Engineering (ISE) at RENSSELAER POLYTECHNIC INSTITUTE in Troy, NY invites applications for a tenure-track faculty position at the Assistant or

    E-Print Network [OSTI]

    Mitchell, John E.

    The Department of Industrial and Systems Engineering (ISE) at RENSSELAER POLYTECHNIC INSTITUTE in Industrial and Systems Engineering or a closely related field. The ISE department is in a period of growth undergraduate and graduate courses in both the Industrial Systems Engineering curriculum, develop and maintain

  6. INDOOR POSITIONING AN AD-HOC POSITIONING SYSTEM Rainer Mautz

    E-Print Network [OSTI]

    to enable continuous tracking of the location of devices in all environments. Highly accurate, reliable 3D computers, printers, or simple tags with wireless radio connections that are `intelligent' enough to be able

  7. Positioning and locking apparatus

    DOE Patents [OSTI]

    Hayward, M.L.; Harper, W.H.

    1985-06-19T23:59:59.000Z

    A positioning and locking apparatus including a fixture having a rotatable torque ring provided with a plurality of cam segments for automatically guiding a container into a desired location within the fixture. Rotation of the ring turns the container into a final position in pressure sealing relation against a hatch member.

  8. How strong is carbon cycle-climate feedback under global warming?

    E-Print Network [OSTI]

    Maryland at College Park, University of

    and physical climate system in a global warming scenario is studied using an Earth system model including

  9. average detecting global: Topics by E-print Network

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

    arises in imple- menting the most basic command of a debugging system Garg, Vijay 13 What Global Warming Looks Like The July 2010 global map of surface temperature anomalies...

  10. New Laboratory Complex Department of Global Ecology

    E-Print Network [OSTI]

    , and associated facilities to house its new Department of Global Ecology. The buildings, located on the campus1 New Laboratory Complex Department of Global Ecology Carnegie Institution of Washington Stanford Ecology will conduct basic research and training on large-scale interactions between ecological systems

  11. Complex Systems Spire of Excellence Approved Faculty Recruitments (FY 13 Recruitment/FY 14 Hire) Continuing Positions Submitted via Unit Staffing Proposals

    E-Print Network [OSTI]

    Hayden, Nancy J.

    /Power Systems/Smart Grid CSYS School of Engineering Asst Prof Mechanical Engineering/Smart Mechanical Sys/Sustainable Energy CSYS School of Engineering Asc/Full Prof Adaptive Systems CSYS School of Engineering Asst Prof Prof Behavioral Health NBH CEMS School of Engineering Asst/Asc Prof Electrical Engineering

  12. Sustainability Peer Educator Positions Position: Sustainability Peer Educator

    E-Print Network [OSTI]

    Boonstra, Rudy

    Sustainability Peer Educator Positions Position: Sustainability Peer Educator Available Positions 2013 April 2014 Position Summary: Working with the Sustainability Project Coordinator, this team of students will be responsible for enhancing and educating UTSC students, staff and faculty on sustainability

  13. Globalization of biopharmaceutical manufacturing

    E-Print Network [OSTI]

    Pande, Rachna

    2011-01-01T23:59:59.000Z

    The biomanufacturing industry is changing due to increasing globalization. However, it is changing differently from other high tech industries like software/ semiconductor/ automobiles. In this study we use global ...

  14. Global Environmental Course Title

    E-Print Network [OSTI]

    Takada, Shoji

    : Environmental discourses, Environment and development in Africa, Environmental conservation and Ainu people Department Global Environmental Studies Room Course Title Frontier of Sustainability Science Instructor Akihisa MORI, Global Environmental Studies Satoshi KONISHI, Institute of Advanced

  15. Nonsingular static global string

    E-Print Network [OSTI]

    A. A. Sen; N. Banerjee

    2000-04-12T23:59:59.000Z

    A new solution for the spacetime outside the core of a U(1) static global string has been presented which is nonsingular. This is the first example of a nonsingular spacetime around a static global string.}}

  16. Review: Globalization of Water

    E-Print Network [OSTI]

    Tennant, Matthew Aaron

    2009-01-01T23:59:59.000Z

    Review: Globalization of Water: Sharing the PlanetsAshok K. Globalization of Water: Sharing the Planets140) liters of virtual water (p. 15). This is one of the

  17. Cows Causing Global Warming

    E-Print Network [OSTI]

    Hacker, Randi

    2008-08-06T23:59:59.000Z

    Broadcast Transcript: Remember when President Reagan blamed trees for air pollution? Well now the Japanese are blaming cows for global warming. Apparently, the methane emissions from burping cows account for 5% of all global greenhouse gases. Simple...

  18. Position Summary Employee Details

    E-Print Network [OSTI]

    California at Davis, University of

    services for faculty and staff. Catalogue and compile assessment resource materials and results and make readily available to faculty and staff by contributing to an assessment resources website; provide STUDIES - 061003 Position: DIRECTOR OF ACADEMIC ASSESSMENT, STUDENT LEARNING ASSESSMENT HEERA

  19. Fluorescent optical position sensor

    DOE Patents [OSTI]

    Weiss, Jonathan D.

    2005-11-15T23:59:59.000Z

    A fluorescent optical position sensor and method of operation. A small excitation source side-pumps a localized region of fluorescence at an unknown position along a fluorescent waveguide. As the fluorescent light travels down the waveguide, the intensity of fluorescent light decreases due to absorption. By measuring with one (or two) photodetectors the attenuated intensity of fluorescent light emitted from one (or both) ends of the waveguide, the position of the excitation source relative to the waveguide can be determined by comparing the measured light intensity to a calibrated response curve or mathematical model. Alternatively, excitation light can be pumped into an end of the waveguide, which generates an exponentially-decaying continuous source of fluorescent light along the length of the waveguide. The position of a photodetector oriented to view the side of the waveguide can be uniquely determined by measuring the intensity of the fluorescent light emitted radially at that location.

  20. Managing Software Development for Global Health

    E-Print Network [OSTI]

    Anderson, Richard

    too much refrigeration. #12;Cold chain description · Storage of vaccines from national level to pointManaging Software Development for Global Health Richard Anderson #12;Outline · PATH · The Cold and was in serious trouble · Applying software industry best practices is leading to a positive outcome 3/10/2010 CSE

  1. HANDBOOK OF GLOBAL OPTIMIZATION Volume 2

    E-Print Network [OSTI]

    2001-12-06T23:59:59.000Z

    Deformation methods of global optimization in chemistry and phy- sics. 461 ... In engineering, economic and scientific studies, quantitative decisions are frequently ... in applied mathematical, physical, chemical, biological, environmental, ..... OR and computer science textbooks; hence, we will not repeat the ex- position here...

  2. Comparison of the Carbon System Parameters at the Global CO2 Survey Crossover Locations in the North and South Pacific Ocean, 1990-1996

    SciTech Connect (OSTI)

    Feely, Richard A [NOAA, Pacific Marine Environmental Laboratory (PMEL); Lamb, Marilyn F. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Greeley, Dana J. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Wanninkhof, Rik [NOAA, Atlantic Oceanographic and Meteorological Laboratory (AOML)

    1999-10-01T23:59:59.000Z

    As a collaborative program to measure global ocean carbon inventories and provide estimates of the anthropogenic carbon dioxide (C02) uptake by the oceans. the National Oceanic and Atmospheric Administration and the U.S. Department of Energy have sponsored the collection of ocean carbon measurements as part of the World Ocean Circulation Experiment and Ocean-Atmosphere Carbon Exchange Study cruises. The cruises discussed here occurred in the North and South Pacific from 1990 through 1996. The carbon parameters from these 30 crossover locations have been compared to ensure that a consistent global data set emerges from the survey cruises. !'he results indicate that for dissolved inorganic carbon. fugacity of C02 and pH. the a~:,rreements at most crossover locations are well within the design specifications for the global CO) survey: whereas. in the case of total alkaliniry. the agreement between crossover locations is not as close.

  3. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University April 2012 #12;HTP in Positive Characteristic Prologue Outline 1 Prologue 2 Fields of Positive Function Fields of Positive Characteristic 7 p-th Powers #12;HTP in Positive Characteristic Prologue

  4. Increased Climate Variability Is More Visible Than Global Warming: A General

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Increased Climate Variability Is More Visible Than Global Warming: A General System@utep.edu Abstract While global warming is a statistically confirmed long-term phenomenon, its most visible than the global warming itself. 1 Formulation of the Problem What is global warming. The term "global

  5. Combination of Indoor and Outdoor Positioning

    E-Print Network [OSTI]

    : integrity, anti-jam power, security, clocks! June 24-26, 2008 ETH Zurich number of satellites gain no direct line-of- sight: obstacles multipath limitations: Positioning Requirements Overview of Systems GNSS

  6. UC Irvine's Earth System Science Department has opportunities for postdocs and grad. students interested in global-scale cryospheric modeling. Our projects

    E-Print Network [OSTI]

    Zender, Charles

    interested in global-scale cryospheric modeling. Our projects (http://www.ess.uci.edu/~zender#ans and http://www.ess among the groups of Professors Charlie Zender (Aerosols, Radiation, http://www.ess.uci.edu/~zender), Jay Famiglietti (Hydrology, http://www.ess.uci.edu/~famiglietti), and Jim Randerson (Fire, C, H2O, http://www.ess

  7. IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. , NO. 1 GRIP: Global Routing via Integer Programming

    E-Print Network [OSTI]

    Davoodi, Azadeh

    assignment phase. Candidate routes spanning all the metal layers are generated using a linear programming: Global Routing via Integer Programming Tai-Hsuan Wu, Student Member, IEEE, Azadeh Davoodi, Member, IEEE programming. GRIP optimizes wirelength and via cost directly without going through a traditional layer

  8. The STAR Vertex Position Detector

    E-Print Network [OSTI]

    W. J. Llope; J. Zhou; T. Nussbaum; G. W. Hoffmann; K. Asselta; J. D. Brandenburg; J. Butterworth; T. Camarda; W. Christie; H. J. Crawford; X. Dong; J. Engelage; G. Eppley; F. Geurts; J. Hammond; E. Judd; D. L. McDonald; C. Perkins; L. Ruan; J. Scheblein; J. J. Schambach; R. Soja; K. Xin; C. Yang

    2014-03-26T23:59:59.000Z

    The 2x3 channel pseudo Vertex Position Detector (pVPD) in the STAR experiment at RHIC has been upgraded to a 2x19 channel detector in the same acceptance, called the Vertex Position Detector (VPD). This detector is fully integrated into the STAR trigger system and provides the primary input to the minimum-bias trigger in Au+Au collisions. The information from the detector is used both in the STAR Level-0 trigger and offline to measure the location of the primary collision vertex along the beam pipe and the event "start time" needed by other fast-timing detectors in STAR. The offline timing resolution of single detector channels in full-energy Au+Au collisions is ~100 ps, resulting in a start time resolution of a few tens of picoseconds and a resolution on the primary vertex location of ~1 cm.

  9. Design Editorial Globalization and Internationalism

    E-Print Network [OSTI]

    Papalambros, Panos

    ; especially, the development of an increasingly integrated global economy marked especially by free tradeJournal of Mechanical Design Editorial Globalization and Internationalism There has always been and Strabo, but to Friedman's empirical observations of globalization. According to Wikipedia, "globalization

  10. Crankshaft position sensing with combined starter alternator

    DOE Patents [OSTI]

    Brandenburg, Larry Raymond (Plymouth, MI); Miller, John Michael (Saline, MI)

    2000-06-13T23:59:59.000Z

    A crankshaft position sensing apparatus for use with an engine (16) having a combined starter/alternator assembly (18). The crankshaft position sensing apparatus includes a tone ring (38) with a sensor (36) and bandpass filter (46), having a cylinder identification input from a camshaft sensor (48), and a gain limiter (54). The sensing apparatus mounts near the rotor (30) of the combined starter/alternator assembly (18). The filtered crankshaft position signal can then be input into a vehicle system controller (58) and an inner loop controller (60). The starter/alternator assembly (18) in combination with an internal combustion engine is particularly useful for a hybrid electric vehicle system.

  11. Global warming and Arctic climate. Raymond S. Bradley

    E-Print Network [OSTI]

    Mountziaris, T. J.

    Global warming and Arctic climate. Raymond S. Bradley Climate System Research Center University of Massachusetts Amherst #12;How have global temperatures changed & why? 1. Average instrumental records from around the world; express all as anomalies from 1961-90 average #12;#12;Overall trend is upward ("global

  12. Diagnosis of the Marine Low Cloud Simulation in the NCAR Community Earth System Model (CESM) and the NCEP Global Forecast System (GFS)-Modular Ocean Model v4 (MOM4) coupled model

    SciTech Connect (OSTI)

    Xiao, Heng; Mechoso, C. R.; Sun, Rui; Han, J.; Pan, H. L.; Park, S.; Hannay, Cecile; Bretherton, Christopher S.; Teixeira, J.

    2014-07-25T23:59:59.000Z

    We present a diagnostic analysis of the marine low cloud climatology simulated by two state-of-the-art coupled atmosphere-ocean models: the NCAR Community Earth System Model (CESM) and the NCEP Global Forecasting System (GFS). In both models, the shallow convection and boundary layer turbulence parameterizations have been recently updated: both models now use a mass-flux scheme for the parameterization of shallow convection, and a turbulence parameterization capable of handling Stratocumulus (Sc)-topped Planetary Boundary Layers (PBLs). For shallow convection, both models employ a convective trigger function based on the concept of convective inhibition and both include explicit convective overshooting/penetrative entrainment formulation. For Sc-topped PBL, both models treat explicitly turbulence mixing and cloud-top entrainment driven by cloud-top radiative cooling. Our focus is on the climatological transition from Sc to shallow Cumulus (Cu)-topped PBL in the subtropical eastern oceans. We show that in the CESM the coastal Sc-topped PBLs in the subtropical Eastern Pacific are well-simulated but the climatological transition from Sc to shallow Cu is too abrupt and happens too close to the coast. By contrast, in the GFS coupled simulation the coastal Sc amount and PBL depth are severely underestimated while the transition from Sc to shallow Cu is delayed and offshore Sc cover is too extensive in the subtropical Eastern Pacific. We discuss the possible connections between such differences in the simulations and differences in the parameterizations of shallow convection and boundary layer turbulence in the two models.

  13. Review of HRP Positions

    SciTech Connect (OSTI)

    Center for Reliability Studies

    2007-01-01T23:59:59.000Z

    The Department of Energy (DOE) Human Reliability Program (HRP), published as 10 CFR Part 712, is currently being reviewed and revised to address concerns identified during its implementation. Although these ''page changes'' primarily incorporate clarification of terms and language, the following discussion relates to broadening the definition of positions that require HRP certification that is found in {section}712.10.

  14. Position Summary Employee Details

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    and/or colleges. Positions Supervised: N/A Essential Responsibilities: 40% PROPOSALS Review proposals-recipient. Interpret sponsor guidelines, policies and regulations and ensure proper retention and timely disposition the Office of Sponsored Programs. Assist with special projects as assigned. Physical Demands: W

  15. Position Summary Employee Details

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    . Positions Supervised: N/A Essential Responsibilities: 40% Proposals: Review proposals and related documents-recipient. Interpret sponsor guidelines, policies and regulations and ensure proper retention and timely disposition the Office of Sponsored Programs. Assist with special projects as assigned. Physical Demands: Work

  16. INTERNATIONAL RELATIONS &INTERNATIONAL RELATIONS &INTERNATIONAL RELATIONS & THE GLOBAL ECONOMYTHE GLOBAL ECONOMYTHE GLOBAL ECONOMY

    E-Print Network [OSTI]

    Krylov, Anna I.

    GLOBAL ECONOMYTHE GLOBAL ECONOMY This major offers students rigorous interdisciplinary training 331: The Global Economy 2030 -- Examination of key ideas from economics, demography and technology. Guest lecturers illuminate possible conditions of the global economy in 2030. IR 454: International

  17. Quantifying the role of fire in the Earth system - Part 2: Impact on the net carbon balance of global terrestrial ecosystems for the 20th century

    SciTech Connect (OSTI)

    Li, Fang; Bond-Lamberty, Benjamin; Levis, Samuel

    2014-03-07T23:59:59.000Z

    Fire is the primary terrestrial ecosystem disturbance agent on a global scale. It affects carbon balance of global terrestrial ecosystems by emitting carbon to atmosphere directly and immediately from biomass burning (i.e., fire direct effect), and by changing net ecosystem productivity and land-use carbon loss in post-fire regions due to biomass burning and fire-induced vegetation mortality (i.e., fire indirect effect). Here, we provide the first quantitative assessment about the impact of fire on the net carbon balance of global terrestrial ecosystems for the 20th century, and investigate the roles of fire direct and indirect effects. This study is done by quantifying the difference between the 20th century fire-on and fire-off simulations with NCAR community land model CLM4.5 as the model platform. Results show that fire decreases net carbon gain of the global terrestrial ecosystems by 1.0 Pg C yr-1 average across the 20th century, as a results of fire direct effect (1.9 Pg C yr-1) partly offset by indirect effect (-0.9 Pg C yr-1). Fire generally decreases the average carbon gains of terrestrial ecosystems in post-fire regions, which are significant over tropical savannas and part of forests in North America and the east of Asia. The general decrease of carbon gains in post-fire regions is because fire direct and indirect effects have similar spatial patterns and the former (to decrease carbon gain) is generally stronger. Moreover, the effect of fire on net carbon balance significantly declines prior to ~1970 with trend of 8 Tg C yr-1 due to increasing fire indirect effect and increases afterward with trend of 18 Tg C yr-1 due to increasing fire direct effect.

  18. Diffraction encoded position measuring apparatus

    DOE Patents [OSTI]

    Tansey, R.J.

    1991-09-24T23:59:59.000Z

    When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection. 3 figures.

  19. Setting a Global Standard for Sustainable Irrigated Catchments

    E-Print Network [OSTI]

    Khan, Shahbaz

    Land and Water has won global recognition for innovative sustainable irrigation systems research Irrigation Systems research team, based in Griffith, will play a part in the ranking and accreditation as globally. CSIRO's Sustainable Irrigation Systems research team is helping farming communities translate

  20. Expected Technological Innovation to Drive Global Market for...

    Open Energy Info (EERE)

    Innovation to Drive Global Market for Microturbine Systems Home > Groups > Increase Natural Gas Energy Efficiency John55364's picture Submitted by John55364(95) Contributor...

  1. Abraham Calls on Global Community to Aggressively Address Nuclear...

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

    harmful materials, not just for cargo entering the U.S., but cargo moving through the international trading system. The Russian Government Must Increase Its Global Leadership...

  2. analyzing global oil: Topics by E-print Network

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

    ... 4 1.5 Fracking: USA oil & gas revolutionSYLLABUS version:13may14a The USA & the Global Oil System...

  3. Global health response more accurate with automated influenza...

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

    will design the automated high-throughput extraction and screening system for a prototype Global Bio Lab-a compact, modular laboratory that can reliably process thousands of...

  4. Optimization Online - A genetic algorithm for a global optimization ...

    E-Print Network [OSTI]

    Daniela di Serafino

    2008-11-05T23:59:59.000Z

    Nov 5, 2008 ... A genetic algorithm for a global optimization problem arising in the ... emitted by coalescing binary systems of compact objects (neutron stars...

  5. awarded global energy: Topics by E-print Network

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

    energy system model Optimisation Minimises the total cost under 14 Diet, Energy, and Global Warming CiteSeer Summary: ABSTRACT: The energy consumption of animal- and...

  6. Engineering the global ecosystem

    E-Print Network [OSTI]

    Stringfellow, William T.; Jain, Ravi

    2010-01-01T23:59:59.000Z

    of humans deliberately engineering agricultural landscapes.010-0302-8 EDITORIAL Engineering the global ecosystemtale about human explorers engineering the ecosystem of Mars

  7. University of Vermont Sustainability Studies and Global Environmental Equity

    E-Print Network [OSTI]

    Hayden, Nancy J.

    , conservation psychology, environmental literature and art. Applicants for all three positions may come fromUniversity of Vermont Sustainability Studies and Global Environmental Equity Faculty positions The Rubenstein School of Environment and Natural Resources and Environmental Program of the University of Vermont

  8. NERSC File Systems

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

    Systems NERSC File Systems Overview NERSC file systems can be divided into two categories: local and global. Local file systems are only accessible on a single platform, providing...

  9. Position Summary Employee Details

    E-Print Network [OSTI]

    California at Davis, University of

    , watering, pruning, planting, maintenance of signage, irrigation systems and other infrastructure irrigation systems; maintain, adjust, and repair heads; recommend improvements to irrigation programming means of control. Apply mulch, alter irrigation, spray herbicide, hoe, or mow as necessary. -Provide

  10. australia position statement: Topics by E-print Network

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

    Darko 7 A. Statement of Position APHL PositionPolicy Statement CiteSeer Summary: Laboratory System Improvement Program (L-SIP), which will help fulfill the data requirements...

  11. Testing for the Possible Influence of Unknown Climate Forcings upon Global Temperature Increases from 1950-2000

    SciTech Connect (OSTI)

    Anderson, Bruce T.; Knight, Jeff R.; Ringer, Mark A.; Yoon, Jin-Ho; Cherchi, Annalisa

    2012-10-15T23:59:59.000Z

    Global-scale variations in the climate system over the last half of the twentieth century, including long-term increases in global-mean near-surface temperatures, are consistent with concurrent human-induced emissions of radiatively active gases and aerosols. However, such consistency does not preclude the possible influence of other forcing agents, including internal modes of climate variability or unaccounted for aerosol effects. To test whether other unknown forcing agents may have contributed to multidecadal increases in global-mean near-surface temperatures from 1950 to 2000, data pertaining to observed changes in global-scale sea surface temperatures and observed changes in radiatively active atmospheric constituents are incorporated into numerical global climate models. Results indicate that the radiative forcing needed to produce the observed long-term trends in sea surface temperaturesand global-mean near-surface temperaturesis provided predominantly by known changes in greenhouse gases and aerosols. Further, results indicate that less than 10% of the long-term historical increase in global-mean near-surface temperatures over the last half of the twentieth century could have been the result of internal climate variability. In addition, they indicate that less than 25%of the total radiative forcing needed to produce the observed long-term trend in global-mean near-surface temperatures could have been provided by changes in net radiative forcing from unknown sources (either positive or negative). These results, which are derived from simple energy balance requirements, emphasize the important role humans have played in modifying the global climate over the last half of the twentieth century.

  12. Photon beam position monitor

    DOE Patents [OSTI]

    Kuzay, T.M.; Shu, D.

    1995-02-07T23:59:59.000Z

    A photon beam position monitor is disclosed for use in the front end of a beamline of a high heat flux and high energy photon source such as a synchrotron radiation storage ring detects and measures the position and, when a pair of such monitors are used in tandem, the slope of a photon beam emanating from an insertion device such as a wiggler or an undulator inserted in the straight sections of the ring. The photon beam position monitor includes a plurality of spaced blades for precisely locating the photon beam, with each blade comprised of chemical vapor deposition (CVD) diamond with an outer metal coating of a photon sensitive metal such as tungsten, molybdenum, etc., which combination emits electrons when a high energy photon beam is incident upon the blade. Two such monitors are contemplated for use in the front end of the beamline, with the two monitors having vertically and horizontally offset detector blades to avoid blade ''shadowing''. Provision is made for aligning the detector blades with the photon beam and limiting detector blade temperature during operation. 18 figs.

  13. MARVELS-1: A FACE-ON DOUBLE-LINED BINARY STAR MASQUERADING AS A RESONANT PLANETARY SYSTEM AND CONSIDERATION OF RARE FALSE POSITIVES IN RADIAL VELOCITY PLANET SEARCHES

    SciTech Connect (OSTI)

    Wright, Jason T.; Roy, Arpita; Mahadevan, Suvrath; Wang, Sharon X.; Fleming, Scott W. [Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802 (United States); Ford, Eric B.; Payne, Matt; Lee, Brian L.; Ge, Jian [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611-2055 (United States); Wang, Ji [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Crepp, Justin R. [Department of Physics, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, IN 46556-5670 (United States); Gaudi, B. Scott; Eastman, Jason [Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States); Pepper, Joshua; Cargile, Phillip; Stassun, Keivan G. [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Ghezzi, Luan [Observatorio Nacional, Rua General Jose Cristino, 77, Rio de Janeiro, RJ 20921-400 (Brazil); Gonzalez-Hernandez, Jonay I. [Instituto de Astrofisica de Canarias (IAC), E-38200 La Laguna, Tenerife (Spain); Wisniewski, John [HL Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W Brooks St, Norman, OK 73019 (United States); Dutra-Ferreira, Leticia, E-mail: jtwright@astro.psu.edu [Laboratorio Interinstitucional de e-Astronomia (LIneA), Rua General Jose Cristino 77, Rio de Janeiro, RJ 20921-400 (Brazil); and others

    2013-06-20T23:59:59.000Z

    We have analyzed new and previously published radial velocity (RV) observations of MARVELS-1, known to have an ostensibly substellar companion in a {approx}6 day orbit. We find significant ({approx}100 m s{sup -1}) residuals to the best-fit model for the companion, and these residuals are naievely consistent with an interior giant planet with a P = 1.965 days in a nearly perfect 3:1 period commensurability (|P{sub b} /P{sub c} - 3| < 10{sup -4}). We have performed several tests for the reality of such a companion, including a dynamical analysis, a search for photometric variability, and a hunt for contaminating stellar spectra. We find many reasons to be critical of a planetary interpretation, including the fact that most of the three-body dynamical solutions are unstable. We find no evidence for transits, and no evidence of stellar photometric variability. We have discovered two apparent companions to MARVELS-1 with adaptive optics imaging at Keck; both are M dwarfs, one is likely bound, and the other is likely a foreground object. We explore false-alarm scenarios inspired by various curiosities in the data. Ultimately, a line profile and bisector analysis lead us to conclude that the {approx}100 m s{sup -1} residuals are an artifact of spectral contamination from a stellar companion contributing {approx}15%-30% of the optical light in the system. We conclude that origin of this contamination is the previously detected RV companion to MARVELS-1, which is not, as previously reported, a brown dwarf, but in fact a G dwarf in a face-on orbit.

  14. Faculty Positions -Computer Science Rensselaer Polytechnic Institute

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    professor in the area of "cyber risk," including but not limited to information/data security, privacy, accountability, trust, and forensics for computers, networks and cyber-physical systems. Applicants and distributed systems. Applicants for these positions must have a doctoral degree (or foreign degree equivalent

  15. Positive Lyapunov exponent by a random perturbation

    E-Print Network [OSTI]

    Zeng Lian; Mikko Stenlund

    2010-12-20T23:59:59.000Z

    We study the effect of a random perturbation on a one-parameter family of dynamical systems whose behavior in the absence of perturbation is ill understood. We provide conditions under which the perturbed system is ergodic and admits a positive Lyapunov exponent, with an explicit lower bound, for a large and controlled set of parameter values.

  16. Conditions for positioning of nucleosomes on DNA

    E-Print Network [OSTI]

    Michael Sheinman; Ho-Ryun Chung

    2015-04-29T23:59:59.000Z

    Positioning of nucleosomes along eukaryotic genomes plays an important role in their organization and regulation. There are many different factors affecting the location of nucleosomes. Some can be viewed as preferential binding of a single nucleosome to different locations along the DNA and some as interactions between neighboring nucleosomes. In this study we analyzed how well nucleosomes are positioned along the DNA as a function of strength of the preferential binding, correlation length of the binding energy landscape, interactions between neighboring nucleosomes and others relevant system properties. We analyze different scenarios: designed energy landscapes and generically disordered ones and derive conditions for good positioning. Using analytic and numerical approaches we find that, even if the binding preferences are very weak, synergistic interplay between the interactions and the binding preferences is essential for a good positioning of nucleosomes, especially on correlated energy landscapes. Analyzing empirical energy landscape, we discuss relevance of our theoretical results to positioning of nucleosomes on DNA \\emph{in vivo.}

  17. Global Wind Power Conference September 18-21, 2006, Adelaide, Australia Design and Operation of Power Systems with Large Amounts of Wind Power, first

    E-Print Network [OSTI]

    of Power Systems with Large Amounts of Wind Power, first results of IEA collaboration Hannele Holttinen1.holttinen@vtt.fi Abstract: An international forum for exchange of knowledge of power system impacts of wind power has been Systems with Large Amounts of Wind Power"will analyse existing case studies from different power systems

  18. global warming's six americas

    E-Print Network [OSTI]

    Haller, Gary L.

    Energy Sources 17 Subsidies for Fossil Fuel and Renewable Energy Industries 18 Support for a Carbon Tax and Costs of Reducing Fossil Fuel Use and Global Warming 8 The Alarmed 9 The Concerned 10 The Cautious 11 the spring and fall of 2012. Perceived Benefits and Costs of Reducing Fossil Fuel Use and Global Warming

  19. Global Change Sustainability

    E-Print Network [OSTI]

    Tipple, Brett

    Global Change and Sustainability Center The GCSC is an inclusionary and interdisciplinary hub that promotes, coordinates, and conducts local to global environmental- and sustainability-related research to complex environmental and sustainability issues and challenges. 2012 Annual Report #12;1GCSC 2012 ANNUAL

  20. Global Development Our Responsibility

    E-Print Network [OSTI]

    of expertise cover urgent global issues such as food production, energy supply, climate change, biodiversity e ort to address urgent global issues particularly a ecting developing countries e.g. climate change of Communication, 2012 · Project Leader: Karin Nilsson · Graphic Design: Viktor Wrange & Michael Kvick Cover Photo

  1. CHILLING CONSIDERATIONS GLOBAL WARMING

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    (millionsofsquarekilometers) 30 20 10 MELTING OF GREENLAND ICE CAP Satellite determination of maximum extent of glacial melt Complete melt of the Greenland ice sheet would raise the level of the global ocean 23 feet. ASAN Steffen IS INCREASING Global carbon dioxide concentration over the last thousand years Polar ice cores #12;Mann et al

  2. Implementation of global energy sustainability

    SciTech Connect (OSTI)

    Grob, G.R. [CMDC, Zurich (Switzerland)

    1998-02-01T23:59:59.000Z

    The term energy sustainability emerged from the UN Conference on Environment and Development in Rio 1992, when Agenda 21 was formulated and the Global Energy Charter proclaimed. Emission reductions, total energy costing, improved energy efficiency, and sustainable energy systems are the four fundamental principles of the charter. These principles can be implemented in the proposed financial, legal, technical, and education framework. Much has been done in many countries toward the implementation of the Global Energy Charter, but progress has not been fast enough to ease the disastrous effects of the too many ill-conceived energy systems on the environment, climate, and health. Global warming is accelerating, and pollution is worsening, especially in developing countries with their hunger for energy to meet the needs of economic development. Asian cities are now beating all pollution records, and greenhouse gases are visibly changing the climate with rising sea levels, retracting glaciers, and record weather disasters. This article presents why and how energy investments and research money have to be rechanneled into sustainable energy, rather than into the business-as-usual of depleting, unsustainable energy concepts exceeding one trillion dollars per year. This largest of all investment sectors needs much more attention.

  3. Find your winning position in the MRO game

    E-Print Network [OSTI]

    Keep them flying Find your winning position in the MRO game Aerospace and Defense IBM Institute currently holds an inventory of about US$44 billion and supports an active global fleet of nearly 17 percent of their total expenditures. (Fuel and labor are other big expenses.) 6 Airlines spend an average

  4. A general framework for complete positivity

    E-Print Network [OSTI]

    Jason M. Dominy; Alireza Shabani; Daniel A. Lidar

    2015-03-18T23:59:59.000Z

    Complete positivity of quantum dynamics is often viewed as a litmus test for physicality, yet it is well known that correlated initial states need not give rise to completely positive evolutions. This observation spurred numerous investigations over the past two decades attempting to identify necessary and sufficient conditions for complete positivity. Here we describe a complete and consistent mathematical framework for the discussion and analysis of complete positivity for correlated initial states of open quantum systems. This formalism is built upon a few simple axioms and is sufficiently general to contain all prior methodologies going back to Pechakas, PRL (1994). The key observation is that initial system-bath states with the same reduced state on the system must evolve under all admissible unitary operators to system-bath states with the same reduced state on the system, in order to ensure that the induced dynamical maps on the system are well-defined. Once this consistency condition is imposed, related concepts like the assignment map and the dynamical maps are uniquely defined. In general, the dynamical maps may not be applied to arbitrary system states, but only to those in an appropriately defined physical domain. We show that the constrained nature of the problem gives rise to not one but three inequivalent types of complete positivity. Using this framework we elucidate the limitations of recent attempts to provide conditions for complete positivity using quantum discord and the quantum data-processing inequality. The problem remains open, and may require fresh perspectives and new mathematical tools. The formalism presented herein may be one step in that direction.

  5. Global biosurveillance: enabling science and technology. Workshop background and motivation: international scientific engagement for global security

    SciTech Connect (OSTI)

    Cui, Helen H [Los Alamos National Laboratory

    2011-01-18T23:59:59.000Z

    Through discussion the conference aims to: (1) Identify core components of a comprehensive global biosurveillance capability; (2) Determine the scientific and technical bases to support such a program; (3) Explore the improvement in biosurveillance to enhance regional and global disease outbreak prediction; (4) Recommend an engagement approach to establishing an effective international community and regional or global network; (5) Propose implementation strategies and the measures of effectiveness; and (6) Identify the challenges that must be overcome in the next 3-5 years in order to establish an initial global biosurveillance capability that will have significant positive impact on BioNP as well as public health and/or agriculture. There is also a look back at the First Biothreat Nonproliferation Conference from December 2007. Whereas the first conference was an opportunity for problem solving to enhance and identify new paradigms for biothreat nonproliferation, this conference is moving towards integrated comprehensive global biosurveillance. Main reasons for global biosurveillance are: (1) Rapid assessment of unusual disease outbreak; (2) Early warning of emerging, re-emerging and engineered biothreat enabling reduced morbidity and mortality; (3) Enhanced crop and livestock management; (4) Increase understanding of host-pathogen interactions and epidemiology; (5) Enhanced international transparency for infectious disease research supporting BWC goals; and (6) Greater sharing of technology and knowledge to improve global health.

  6. MODIS Collection 5 global land cover: Algorithm refinements and characterization of new datasets

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    information is required to parameterize land surface processes in regional-to-global scale Earth system models

  7. Impact of mesophyll diffusion on estimated global land CO2 fertilization

    E-Print Network [OSTI]

    Hoffman, Forrest M.

    by Earth system models. Without this correction, the CFE for global GPP is underestimated by 0.05 Pg

  8. Global aspects of radiation memory

    E-Print Network [OSTI]

    J. Winicour

    2014-10-11T23:59:59.000Z

    Gravitational radiation has a memory effect represented by a net change in the relative positions of test particles. Both the linear and nonlinear sources proposed for this radiation memory are of the "electric" type, or E mode, as characterized by the even parity of the polarization pattern. Although "magnetic" type, or B mode, radiation memory is mathematically possible, no physically realistic source has been identified. There is an electromagnetic counterpart to radiation memory in which the velocity of charged particles obtain a net "kick". Again, the physically realistic sources of electromagnetic radiation memory that have been identified are of the electric type. In this paper, a global null cone description of the electromagnetic field is applied to establish the non-existence of B mode radiation memory and the non-existence of E mode radiation memory due to a bound charge distribution.

  9. Global warming, bad weather, insurance losses and the global economy

    SciTech Connect (OSTI)

    Low, N.C. [UOB Life Assurance Ltd., Singapore (Singapore); Shen, S. [Global Warming International Center, Woodridge, IL (United States)

    1996-09-01T23:59:59.000Z

    Global warming causes extremely bad weather in the near term. The impact on the insurance industry is described. Why global warming in the near term causes very bad weather is explained. The continuing trend of very bad weather and the future impact on the insurance industry is explored. How very bad weather can affect the global financial market is explained. Taking a historical view of the development of the modern economy, the authors describe in the near term the impact of global warming on the global economy. The long term impact of global warming on the global economy and the human race is explored. Opportunities presented by global warming are described.

  10. Analysis of a laser projection system

    E-Print Network [OSTI]

    Vangala, Prabhakar Srinivas

    1990-01-01T23:59:59.000Z

    in the various transforination parameters on the final beam location and data, indicating the results. Gatvanometers YO t aser Laser Or Global Coordinate System XO rilrr ors ZO Reflected Laser Beam SD PSD Internal Ply X Tool Or Fixture Y Coordinate... (D) ddt. 1 ? dtt, dy detr dd 1 d 0 0 0 1 Z2 Y2 Fixture Position 2 X2 ; ixture Position 1 X1 [T2 l YO Zi i aser Coordinate System ZO Figure T. Differential Transformation The Translational and Rotational errors can then be calculated...

  11. China's Global Oil Strategy

    E-Print Network [OSTI]

    Thomas, Bryan G

    2009-01-01T23:59:59.000Z

    21, 2008. Ying, Wang. China, Venezuela firms to co-developoilfields. China Daily (27 August 2005) http://David and Bi Jianhai. Chinas Global Hunt for Energy.

  12. Global Cool Cities Alliance

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) is currently supporting the Global Cool Cities Alliance (GCCA), a non-profit organization that works with cities, regions, and national governments to speed the...

  13. China's Global Oil Strategy

    E-Print Network [OSTI]

    Thomas, Bryan G

    2009-01-01T23:59:59.000Z

    nations began to seek out oil reserves around the world. 3on the limited global oil reserves and spiking prices. Manyto the largest proven oil reserves, making up 61 percent of

  14. Global warming elucidated

    SciTech Connect (OSTI)

    Shen, S. [Global Warming International Center, Woodridge, IL (United States)

    1995-03-01T23:59:59.000Z

    The meaning of global warming and its relevance to everyday life is explained. Simple thermodynamics is used to predict an oscillatory nature of the change in climate due to global warming. Global warming causes extreme events and bad weather in the near term. In the long term it may cause the earth to transition to another equilibrium state through many oscillation in climatic patterns. The magnitudes of these oscillations could easily exceed the difference between the end points. The author further explains why many no longer fully understands the nature and magnitudes of common phenomena such as storms and wind speeds because of these oscillations, and the absorptive properties of clouds. The author links the increase in duration of the El Nino to global warming, and further predicts public health risks as the earth transitions to another equilibrium state in its young history.

  15. Global climatic catastrophes

    SciTech Connect (OSTI)

    Budyko, M.I.; Golitsyn, G.S.; Izrael, A

    1988-01-01T23:59:59.000Z

    This work inquires into global climatic catastrophes of the past, presenting data not easily available outside of the Socialist Countries, and applies these results to the study of future climatic developments, especially as they threaten in case of Nuclear Warfare - Nuclear Winter. The authors discuss probable after effects from the Soviet point of view on the basis of research, stressing the need to avoid all conflict which might lead to the next and final Global Climatic Catastrophy.

  16. Conditions for positioning of nucleosomes on DNA

    E-Print Network [OSTI]

    Sheinman, Michael

    2015-01-01T23:59:59.000Z

    Positioning of nucleosomes along eukaryotic genomes plays an important role in their organization and regulation. There are many different factors affecting the location of nucleosomes. Some can be viewed as preferential binding of a single nucleosome to different locations along the DNA and some as interactions between neighboring nucleosomes. In this study we analyzed how well nucleosomes are positioned along the DNA as a function of strength of the preferential binding, correlation length of the binding energy landscape, interactions between neighboring nucleosomes and others relevant system properties. We analyze different scenarios: designed energy landscapes and generically disordered ones and derive conditions for good positioning. Using analytic and numerical approaches we find that, even if the binding preferences are very weak, synergistic interplay between the interactions and the binding preferences is essential for a good positioning of nucleosomes, especially on correlated energy landscapes. Ana...

  17. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University October 2007 #12;HTP in Positive Characteristic Table of Contents 1 A Brief History of Diophantine Diophantine Sets, Definitions and Models HTP over a Field vs. HTP over a Subring 3 A Brief History of HTP over

  18. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University November 2007 #12;HTP in Positive Characteristic Table of Contents 1 A Brief History are Done Diophantine Sets, Definitions and Models HTP over a Field vs. HTP over a Subring 3 A Brief History

  19. Joining GE Global Research Thermal Systems | GE Global Research

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

    Alps. With more than 16 years working as an aerospace engineer in the development of gas turbine jet engines, I had GE on my radar screen right from the beginning when I was...

  20. Position Summary Employee Details

    E-Print Network [OSTI]

    California at Davis, University of

    . Learn new methodologies that extend business analysis best practices and processes. Physical Demands for researching (using campus policies, best practices, stakeholder and sponsor group interviews, MyInfoVault team current business analysis best practices. Participate in trouble-shooting system issues, determine cause

  1. Franklin File Systems

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

    Files systems Files systems NERSC's global home and project file systems are available on Franklin. Additionally, Franklin has over 400 TB of locally attached high-performance...

  2. Positional Roots in Kaqchikel Maya

    E-Print Network [OSTI]

    Tummons, Emily Jane

    2010-09-30T23:59:59.000Z

    This work is the first in-depth investigation of the class of positional words in Kaqchikel (Mayan). Based on original fieldwork, I first establish the existence of a special class of positional roots in Kaqchikel. I show ...

  3. Faculty Positions Heat Transfer and

    E-Print Network [OSTI]

    Faculty Positions Heat Transfer and Thermal/Energy Sciences Naval Postgraduate School Monterey-track faculty position at the assistant professor level in the areas of Heat Transfer and Thermal/Fluid Sciences

  4. The Leo Archipelago: A System of Earth-Rings for Communications, Mass-Transport to Space, Solar Power, and Control of Global Warming

    E-Print Network [OSTI]

    Andrew Meulenberg; Karthik Balaji

    2010-09-21T23:59:59.000Z

    A multi-purpose low-earth-orbit system of rings circling the earth - the "LEO ARCHIPELAGO" - is proposed as a means of solving or bypassing many major problems hindering man's quest to get into space. A fiber-optic ring about the earth would be an initial testing and developmental stage for the ring systems, while providing cash-flow through a LEO-based, high-band-width, world-wide communication system. A Low-Earth-Orbit-based space-elevator system, "Sling-on-a-Ring," is proposed as the crucial developmental stage of the LEO Archipelago. Being a LEO-based heavy-mass lifter, rather than earth- or GEO-based, it is much less massive and therefore less costly than other proposed space-elevators. With the advent of lower-cost, higher-mass transport to orbit, the options for further space development (e.g., communications, space solar power, radiation dampers, sun shades, and permanent LEO habitation) are greatly expanded. This paper provides an update of the Sling-on-a-Ring concept in terms of new materials, potential applications, and trade-offs associated with an earlier model. The impact of Colossal Carbon Tubes, CCT, a material with high tensile strength, extremely-low density, and other favorable properties and new technologies (e.g., solar-powered lasers, power beaming to near-space and earth, and thermal-control systems) on the development of associated LEO-Ring systems (e.g., "Solar-Shade Rings" and "Power Rings") is also explored. The material's effect on the timeline for the system development indicates the feasibility of near-term implementation of the system (possibly within the decade). The Sling-on-a-Ring can provide a less-expensive, environment-friendly, mode of access to space. This would pave the way (via eventual operation at >1000 tonnes per day by 2050) for large scale development of space-based technologies.

  5. GLOBAL LEADERSHIP PROGRAM MISSION STATEMENT

    E-Print Network [OSTI]

    Saidak, Filip

    GLOBAL LEADERSHIP PROGRAM MISSION STATEMENT The Global Leadership Program at UNCG will afford. Leadership, citizenship and cross-cultural understanding have taken on new meanings and have become essential for the successful citizen of the new globalized world. The Global Leadership Program (GLP) is open to all domestic

  6. Original article Predicted global warming

    E-Print Network [OSTI]

    Boyer, Edmond

    Original article Predicted global warming and Douglas-fir chilling requirements DD McCreary1 DP to predicted global warming. Douglas-fir / chilling / global warming / bud burst / reforestation Résumé offer evidence that mean global warming of 3-4 °C could occur within the next century, particularly

  7. POSITION ANNOUNCEMENT TEXAS TECH UNIVERSITY LIBRARIES

    E-Print Network [OSTI]

    Rock, Chris

    management systems; knowledge and ability of how to interpret a problem and turn it into a technological Management and Services) Research and Development Team, this tenure-track Library faculty position engages in highly innovative and sustainable digital library stewardship, to include preservation and curation

  8. Stanford Center for Position, Navigation & Time

    E-Print Network [OSTI]

    Straight, Aaron

    contributing exciting, novel new technologies, and together can play a leading role in this technology to rejuvenate the GLONASS system · Japan is also active with QZSS. #12;6 Outline A. Navigation & time technology;2 Stanford Center for Position Navigation and Time · The implementation of GPS in 1973 began this technology

  9. Position and velocity estimation through acceleration measurements

    E-Print Network [OSTI]

    Boyer, Edmond

    from inertial sensors inherently causes errors to grow with time, commonly known as integration drift/position estimation based on inertial sensors requires some addi- tional source of information providing navigation systems (INS) aiding sensors are applied. An INS consists of a triad of orthogonal ac

  10. Date August 12, 2014 Invites applications for the following position (s)

    E-Print Network [OSTI]

    .U.P.E. Local 3338 Temporary Positions LIBRARY ASSISTANT, GRADE 3 LIBRARY SYSTEMS DIVISION POSITION NUMBER description and classification on request. Please note: There are up to 8 part-time positions available

  11. Faculty Position in Ultra High Precision Robotics & Manufacturing

    E-Print Network [OSTI]

    Candea, George

    , manipulation and metrology systems targeting additive manufacturing; New kinematics, quasi-perfect guidings, actuators, transmission systems, sensors and methods targeting ultra-high precision additive manufacturingFaculty Position in Ultra High Precision Robotics & Manufacturing at the Ecole Polytechnique

  12. Globalizing the oil field; U. S. stronghold seen slipping

    SciTech Connect (OSTI)

    Ellis, P.A. (Booz, Allen and Hamilton Inc., Dallas, TX (US)); Deffarges, E.H. (Booz, Allen and Hamilton Inc., San Francisco, CA (US))

    1989-12-01T23:59:59.000Z

    This article assesses the current importance of North American reserves in a global context, recent technological trends that tend to erode the leadership that U.S. majors traditionally have enjoyed in this area and the new role played by national oil companies as full-fledged competitors to oil majors, even outside their territorial waters. A few strategic steps are outlined to aid U.S. major oil companies to these global forces meet the challenges created by and to strengthen their position in the global oil business.

  13. Global ice sheet modeling

    SciTech Connect (OSTI)

    Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

    1994-05-01T23:59:59.000Z

    The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

  14. Micro-position sensor using faraday effect

    DOE Patents [OSTI]

    McElfresh, Michael (Livermore, CA); Lucas, Matthew (Pittsburgh, PA); Silveira, Joseph P. (Tracy, CA); Groves, Scott E. (Brentwood, CA)

    2007-02-27T23:59:59.000Z

    A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted through the magneto-optic material. The magnet is independently movable relative to the magneto-optic material so as to rotate the plane of polarization of the polarized light as a function of the relative position of the magnet. In this manner, the position of the magnet relative to the magneto-optic material may be determined from the rotated polarized light. The sensing system also includes a light source, such as a laser or LED, for producing polarized light, and an optical fiber which is connected to the light source and to the magneto-optic material at a sensing end of the optical fiber. Processing electronics, such as a polarimeter, are also provided for determining the Faraday rotation of the plane of polarization of the back-reflected polarized light to determine the position of the magnet relative to the sensing end of the optical fiber.

  15. Global Scale Impacts

    E-Print Network [OSTI]

    Asphaug, Erik; Jutzi, Martin

    2015-01-01T23:59:59.000Z

    Global scale impacts modify the physical or thermal state of a substantial fraction of a target asteroid. Specific effects include accretion, family formation, reshaping, mixing and layering, shock and frictional heating, fragmentation, material compaction, dilatation, stripping of mantle and crust, and seismic degradation. Deciphering the complicated record of global scale impacts, in asteroids and meteorites, will lead us to understand the original planet-forming process and its resultant populations, and their evolution in time as collisions became faster and fewer. We provide a brief overview of these ideas, and an introduction to models.

  16. INTERNATIONAL RELATIONSINTERNATIONAL RELATIONSINTERNATIONAL RELATIONS (GLOBAL BUSINESS)(GLOBAL BUSINESS)(GLOBAL BUSINESS)

    E-Print Network [OSTI]

    Krylov, Anna I.

    INTERNATIONAL RELATIONSINTERNATIONAL RELATIONSINTERNATIONAL RELATIONS (GLOBAL BUSINESS)(GLOBAL BUSINESS)(GLOBAL BUSINESS) Future leaders in business, government, and law need to understand how global, and internship opportunities, it is an ideal major for those interested in entering the realms of business

  17. Global Compact for Higher Education Institutions

    E-Print Network [OSTI]

    Global Compact for Higher Education Institutions Communicating on Progress for Universit Laval Guide to the United Nations Global Compact for Higher Education Institutions: Implementing the Global to the United Nations Global Compact for Higher Education Institutions: Implementing the Global Compact

  18. Mobile Geographic Information Systems (GIS) for Humanitarian Demining

    E-Print Network [OSTI]

    Dunbar, Matthew D.

    2010-04-27T23:59:59.000Z

    on the Windows Mobile operating system that provides mapping functionality via a customized applet running inside the ESRI mobile GIS software ArcPad. The central hardware component running the Survey Tool is a touch-screen pocket PC, the Hewlett Packard i.... Horizontal accuracy statistics calculated from Socket Global Positioning System (GPS) data and the percentage of the actual data distribution within that distance. All statistics in the bottom half of the table are derived from root mean square (RMS...

  19. GLOBAL TAXONOMY INITIATIVE

    E-Print Network [OSTI]

    Grant, Taran

    #12;THE GLOBAL TAXONOMY INITIATIVE: Using Systematic Inventories to Meet Country and Regional Needs International #12;Table of Contents Introduction 1 I. Using Inventories to Build Capacity and Advance the GTI 2 for systematic inventories. A major component of the workshop addressed how systematic inventories can serve

  20. Global Vision Study Abroad

    E-Print Network [OSTI]

    Saskatchewan, University of

    Finding a Global Vision Study Abroad Students Visit South Africa Philosophy in the Community arts sculpture of South Africa's late pop diva Brenda Fassie. More on Page 4 #12;At every post energy and passion for his work. At the same time, I would also like to express my sincere gratitude

  1. WORKPLACE GUIDES GLOBAL WORKING

    E-Print Network [OSTI]

    Roelleke, Thomas

    of Stonewall good practice publications profiles some of the employers paving the way for gay staff to work do arise. This guide provides clear, practical tips on how gay employees can access internationalWORKPLACE GUIDES GLOBAL WORKING Supporting lesbian, gay and bisexual staff on overseas assignments

  2. Global Health Seminar Series

    E-Print Network [OSTI]

    Klein, Ophir

    Bay Area Global Health Seminar Series Monday, January 27, 2014 2:30pm 4:00pm (Reception to follow at the Center for Health Policy and the Woods Institute for the Environment. He studies how economic, political, and natural environments affect population health in developing countries using a mix of experimental

  3. Global Climate & Catastrophic Risk

    E-Print Network [OSTI]

    de Lijser, Peter

    Global Climate & Catastrophic Risk Forum 2012 A Joint Program with LA RIMS Education Day Rethinking Catastrophic Risk in Risk Management: Earthquake-Related Challenges Featuring: Keynote Speaker Dr. Frank Beuthin, Willis Group Holdings Plc. Yohei Miyamoto, Aon Risk Solutions Curtis deVera, Marsh

  4. Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson*

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    Rendering the Electromechanical Valve Actuator Globally Asymptotically Stable Katherine S. Peterson to render the electromechanical valve actuator (EVA) globally asymptotically stable (GAS). Elec model. Here, we demonstrate and prove that our controller renders the system GAS without any assumption

  5. Positivity of continuous piecewise polynomials

    E-Print Network [OSTI]

    Plaumann, Daniel

    2010-01-01T23:59:59.000Z

    Real algebraic geometry provides certificates for the positivity of polynomials on semi-algebraic sets by expressing them as a suitable combination of sums of squares and the defining inequalitites. We show how Schm\\"udgen's theorem for strictly positive polynomials on compact sets can be applied in the case of strictly positive piecewise polynomials on a simplicial complex. In the 1-dimensional case, we improve this result to cover all non-negative piecewise polynomials.

  6. Preemptive scheduling with position costs

    E-Print Network [OSTI]

    In most scheduling models presented in the literature [3, 10], the cost for ... Preemptive scheduling in order to minimize the total position costs also stems.

  7. Is Arnold diffusion relevant to global diffusion?

    E-Print Network [OSTI]

    Seiichiro Honjo; Kunihiko Kaneko

    2003-07-27T23:59:59.000Z

    Global diffusion of Hamiltonian dynamical systems is investigated by using a coupled standard maps. Arnold web is visualized in the frequency space, using local rotation numbers, while Arnold diffusion and resonance overlaps are distinguished by the residence time distributions at resonance layers. Global diffusion in the phase space is shown to be accelerated by diffusion across overlapped resonances generated by the coupling term, rather than Arnold diffusion along the lower-order resonances. The former plays roles of hubs for transport in the phase space, and accelerate the diffusion.

  8. Analytic torsion, vortices and positive Ricci curvature

    E-Print Network [OSTI]

    Berman, Robert J

    2010-01-01T23:59:59.000Z

    We characterize the global maximizers of a certain non-local functional defined on the space of all positively curved metrics on an ample line bundle L over a Kahler manifold X. This functional is an adjoint version, introduced by Berndtsson, of Donaldson's L-functional and generalizes the Ding-Tian functional whose critical points are Kahler-Einstein metrics of positive Ricci curvature. Applications to (1) analytic torsions on Fano manifolds (2) Chern-Simons-Higgs vortices on tori and (3) Kahler geometry are given. In particular, proofs of conjectures of (1) Gillet-Soul\\'e and Fang (concerning the regularized determinant of Dolbeault Laplacians on the two-sphere) (2) Tarantello and (3) Aubin (concerning Moser-Trudinger type inequalities) in these three settings are obtained. New proofs of some results in Kahler geometry are also obtained, including a lower bound on Mabuchi's K-energy and the uniqueness result for Kahler-Einstein metrics on Fano manifolds of Bando-Mabuchi. This paper is a substantially extend...

  9. POSITION DESCRIPTION 2012 TRANSFER MENTOR

    E-Print Network [OSTI]

    POSITION DESCRIPTION 2012 TRANSFER MENTOR TRANSFER MENTOR AS A STAFF MEMBER Thank you for your interest in the Transfer Mentor position with Orientation and Transition Programs' (OTP) Transfer Mentoring Program. The Transfer Mentor (TM) is a member of the Orientation and Transition Programs' staff

  10. Electric Vehicles Global Climate Change

    E-Print Network [OSTI]

    Sbester, Andrs

    Hot Topics Electric Vehicles Global Climate Change Green Building Hydraulic Fracturing Nuclear to global warming. The UKgovernment has just announced it is investing $1 billion in their development Green Living Industry Regulation Remediation Research and Technology Sustainability Waste Water Products

  11. Global and Regional Solutions Directorate

    E-Print Network [OSTI]

    Homes, Christopher C.

    at Pacific NW National Lab (PNNL) Founding Director Joint Global Change Research Institute (PNNL/UMd) ALD (PNNL) Environmental and Health Sciences Directorate; Emerging Technologies Chief Scientist Atmospheric Radiation Measurement Program Director PNNL Global Studies Program Other (PNNL): Center

  12. Global Warming and Caspian Sea Level Fluctuations

    E-Print Network [OSTI]

    Ardakanian, Reza

    2013-01-01T23:59:59.000Z

    Coastal regions have a high social, economical and environmental importance. Due to this importance the sea level fluctuations can have many bad consequences. In this research the correlation between the increasing trend of temperature in coastal stations due to Global Warming and the Caspian Sea level has been established. The Caspian Sea level data has been received from the Jason-1 satellite. It was resulted that the monthly correlation between the temperature and sea level is high and also positive and almost the same for all the stations. But the yearly correlation was negative. It means that the sea level has decreased by the increase in temperature.

  13. HIERARCHICAL STRUCTURE OF MAGNETOHYDRODYNAMIC TURBULENCE IN POSITION-POSITION-VELOCITY SPACE

    SciTech Connect (OSTI)

    Burkhart, Blakesley; Lazarian, A. [Astronomy Department, University of Wisconsin, Madison, 475 N. Charter St., WI 53711 (United States); Goodman, Alyssa [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-78, Cambridge, MA 02138 (United States); Rosolowsky, Erik [University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna BC V1V 1V7 (Canada)

    2013-06-20T23:59:59.000Z

    Magnetohydrodynamic turbulence is able to create hierarchical structures in the interstellar medium (ISM) that are correlated on a wide range of scales via the energy cascade. We use hierarchical tree diagrams known as dendrograms to characterize structures in synthetic position-position-velocity (PPV) emission cubes of isothermal magnetohydrodynamic turbulence. We show that the structures and degree of hierarchy observed in PPV space are related to the presence of self-gravity and the global sonic and Alfvenic Mach numbers. Simulations with higher Alfvenic Mach number, self-gravity and supersonic flows display enhanced hierarchical structure. We observe a strong dependency on the sonic and Alfvenic Mach numbers and self-gravity when we apply the statistical moments (i.e., mean, variance, skewness, kurtosis) to the leaf and node distribution of the dendrogram. Simulations with self-gravity, larger magnetic field and higher sonic Mach number have dendrogram distributions with higher statistical moments. Application of the dendrogram to three-dimensional density cubes, also known as position-position-position (PPP) cubes, reveals that the dominant emission contours in PPP and PPV are related for supersonic gas but not for subsonic. We also explore the effects of smoothing, thermal broadening, and velocity resolution on the dendrograms in order to make our study more applicable to observational data. These results all point to hierarchical tree diagrams as being a promising additional tool for studying ISM turbulence and star forming regions for obtaining information on the degree of self-gravity, the Mach numbers and the complicated relationship between PPV and PPP data.

  14. 2, 921942, 2002 Global ozone

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 2, 921942, 2002 Global ozone forecasting H. J. Eskes et al. Title Page Abstract Introduction Geophysical Society 2002 Atmospheric Chemistry and Physics Discussions Global ozone forecasting based on ERS-2 July 2002 Correspondence to: H. J. Eskes (eskes@knmi.nl) 921 #12;ACPD 2, 921942, 2002 Global ozone

  15. Globalization, Labor, Transformation of Work

    E-Print Network [OSTI]

    in an Increasingly Global Economy Edited by Jonathan H. Westover THE ORGANISATION #12;First published in Australia in an increasingly global economy Jonathan H. Westover (editor) Bibliography. 978 1 86335 660 2 (pbk.) 978 1 86335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Economic Globalization and Caribbean Economies, Syed H. Akhter, Paul Pounder

  16. GLOBAL WARMING THE GREENHOUSE EFFECT

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz GREENHOUSE EFFECT #12;GLOBAL ENERGY BALANCE Global and annual average energy fluxes in watts per square meter about it.But nobody does anything about it. Mark Twain Mark Twain Now with the greenhouse effect, we

  17. Global Warming: Connecting the Dots

    E-Print Network [OSTI]

    Hansen, James E.

    Global Warming: Connecting the Dots from Causes to Solutions* Jim Hansen 26 February 2007 National://www.columbia.edu/~jeh1/worldwatch_nov2006.pdf) 5. Communicating dangers and opportunities in global warming, Amer-16, 2006. (http://pubs.giss.nasa.gov/docs/2006/2006_Hansen.pdf) 8. Global warming: Connecting the dots from

  18. 4, 10591092, 2007 Global warming

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BGD 4, 1059­1092, 2007 Global warming potential of agro-ecosystems S. Lehuger et al. Title Page Predicting the global warming potential of agro-ecosystems S. Lehuger, B. Gabrielle, E. Larmanou, P. Laville Correspondence to: S. Lehuger (simon.lehuger@grignon.inra.fr) 1059 #12;BGD 4, 1059­1092, 2007 Global warming

  19. A system for catheter tracking using magnetic resonance

    E-Print Network [OSTI]

    Rosas Trigueros Jorge Luis

    2002-01-01T23:59:59.000Z

    of the VI's. 35 36 3. 3 Peak detection. 38 3. 4 Sketch of the positioning system for vertical movement. . . 39 3. 5 Positioning system for vertical movement. 3. 6 Sketch of fiducial coil design. 40 42 4. 1 Cod-liver capsule tracking 1. 4. 2 Cod.... 69 70 72 LIST OF TABLES TABLE I Comparison between catheter tracking technologies. . . Page 11 II List of possible orientations from the read values. . 23 III VI's used by CATS . . 33 IV Global variables used by CATS. . 33 CHAPTER I...

  20. Visualizing Global Inequality on the Web

    E-Print Network [OSTI]

    Meyers, Ian; Lodha, S K; Crow, Ben D; Fulfrost, Brian

    2008-01-01T23:59:59.000Z

    on Mapping Global Inequality, University of California,Visualizing Global Inequality on the Web Ian Myers 1 ,for mapping global inequality by (i) creating a simple user

  1. Heat Waves, Global Warming, and Mitigation

    E-Print Network [OSTI]

    Carlson, Ann E.

    2008-01-01T23:59:59.000Z

    Heat Waves, Global Warming, and Mitigation Ann E. Carlson*2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 175 stroke2001). 2008]HEAT WAVES, GLOBAL WARMING, AND MITIGATION 177

  2. Global Warming, endogenous risk and irreversibility

    E-Print Network [OSTI]

    Fisher, Anthony C.; Narain, Urvashi

    2002-01-01T23:59:59.000Z

    The economics of global warming, Institute for InternationalEconomic Models of Global Warming, Cambridge, Mass. MITstochastic losses from global warming, Risk Analysis 16(2):

  3. POSITION DESCRIPTION ASSISTANT DIRECTOR FOR BUSINESS SERVICES Position Summary

    E-Print Network [OSTI]

    Acton, Scott

    annually), financial reporting and human resource management. Conducts financial analysis and assists resource activities. Set clear staff expectations and provide direction using SMART goals and LEAD, enrollment data, operating and capital budgets, and 10 year financial projections, this position

  4. The Future of Global Water Stress: An Integrated Assessment

    E-Print Network [OSTI]

    Schlosser, C. Adam

    We assess the ability of global water systems, resolved at 282 large river basins or Assessment Sub Regions (ASRs), to the meet water requirements over the coming decades under integrated projections of socioeconomic growth ...

  5. Financial distortions and the distribution of global volatility

    E-Print Network [OSTI]

    Eden, Maya Rachel

    2011-01-01T23:59:59.000Z

    In this thesis, I study the interactions between various aspects of the financial system and macroeconomic volatility in a globally integrated environment. In Chapter 1, I illustrate that an efficient allocation of liquidity ...

  6. IT Services in the Global Economy: The Case of Mexico

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    includes General Motors, General Electric, Delphi and manyIn 2003 Softtek purchased General Electric Company?s GlobalDirect TV, Epicor, General Electric, HP, IBM, Junot Systems,

  7. The Position of the Sun

    E-Print Network [OSTI]

    Horn, Berthold K.P.

    The appearance of a surface depends dramatically on how it is illuminated. In order to interpret properly satellite and aerial imagery, it is necessary to know the position of the sun in the sky. This is particularly ...

  8. Virtual Compass: Relative Positioning To Sense Mobile Social Interactions

    E-Print Network [OSTI]

    Hunt, Galen

    Virtual Compass: Relative Positioning To Sense Mobile Social Interactions Nilanjan Banerjee in availability and ac- curacy. Virtual Compass is a peer-based relative positioning system that relies solely movement. We have im- plemented Virtual Compass on mobile phones and laptops, and we eval- uate it using

  9. POSITIVE ENERGY QUANTIZATION OF LINEAR DYNAMICS JAN DEREZINSKI

    E-Print Network [OSTI]

    Boyer, Edmond

    POSITIVE ENERGY QUANTIZATION OF LINEAR DYNAMICS JAN DEREZINSKI DEPARTMENT OF MATHEMATICAL METHODS IN PHYSICS, WARSAW UNIVERSITY, HO ZA 74, 00-682 WARSZAWA, POLAND, CHRISTIAN GERARD DEPARTEMENT DE MATH the positive energy quantiza- tion of linear classical systems is described. It is separated into 3 stages

  10. The Global Energy Challenge

    ScienceCinema (OSTI)

    George Crabtree

    2010-01-08T23:59:59.000Z

    The expected doubling of global energy demand by 2050 challenges our traditional patterns of energy production, distribution and use. The continued use of fossil fuels raises concerns about supply, security, environment and climate. New routes are needed for the efficient conversion of energy from chemical fuel, sunlight, and heat to electricity or hydrogen as an energy carrier and finally to end uses like transportation, lighting, and heating. Opportunities for efficient new energy conversion routes based on nanoscale materials will be presented, with emphasis on the sustainable energy technologies they enable.

  11. Global Threat Reduction Initiative

    Office of Environmental Management (EM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked Questions for DOE FY 2011Talley,GENIIFY14 BudgetHollettGive UsDepartment ofGlobal

  12. Computer modeling of the global warming effect

    SciTech Connect (OSTI)

    Washington, W.M. [National Center for Atmospheric Research, Boulder, CO (United States)

    1993-12-31T23:59:59.000Z

    The state of knowledge of global warming will be presented and two aspects examined: observational evidence and a review of the state of computer modeling of climate change due to anthropogenic increases in greenhouse gases. Observational evidence, indeed, shows global warming, but it is difficult to prove that the changes are unequivocally due to the greenhouse-gas effect. Although observational measurements of global warming are subject to ``correction,`` researchers are showing consistent patterns in their interpretation of the data. Since the 1960s, climate scientists have been making their computer models of the climate system more realistic. Models started as atmospheric models and, through the addition of oceans, surface hydrology, and sea-ice components, they then became climate-system models. Because of computer limitations and the limited understanding of the degree of interaction of the various components, present models require substantial simplification. Nevertheless, in their present state of development climate models can reproduce most of the observed large-scale features of the real system, such as wind, temperature, precipitation, ocean current, and sea-ice distribution. The use of supercomputers to advance the spatial resolution and realism of earth-system models will also be discussed.

  13. Ethics in collaborative global health researchhealth research

    E-Print Network [OSTI]

    Oxford, University of

    in developing countries ­Global health inequalities­Global health inequalities ­Disproportionate burden

  14. S ~ C ~and Tlymmics of the Global Economy:Network sls sf International

    E-Print Network [OSTI]

    White, Douglas R.

    S ~ C ~and Tlymmics of the Global Economy:Network sls sf International Trade 1961980* DAV][DA. m issuesin international political economy.Theworld-systemapproach suggests that the structure of the global of the world economic system and to identify the roles that particular counfries play in the global division

  15. Climate changes mirror global warming predictions BY THOMAS CROWLEY Guest columnist

    E-Print Network [OSTI]

    Climate changes mirror global warming predictions BY THOMAS CROWLEY Guest columnist The Herald" and must reflect, at least in part, the climate system response to the increase in global warming. What if we wanted to prevent global warming. This is just doomsday speaking of the same type that he

  16. analysis turn positive: Topics by E-print Network

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

    position data was installed in the PS Booster. In this note the measurement system as well as the specific measurement conditions at the PS Booster are discussed. The theory on...

  17. A Remark on the Strict Positivity of the Entropy Production

    E-Print Network [OSTI]

    Walter H. Aschbacher; Herbert Spohn

    2005-07-05T23:59:59.000Z

    We establish an algebraic criterion which ensures the strict positivity of the entropy production in quantum models consisting of a small system coupled to thermal reservoirs at different temperatures.

  18. Ph.D. Positions in "ICT for Sustainable Energy Management"

    E-Print Network [OSTI]

    Teschner, Matthias

    -edge applications for energy efficiency. We are developing and evaluating distributed systems for monitoring of complex systems Background in energy management and power systems is considered a plus Interest Ph.D. Positions in "ICT for Sustainable Energy Management" Key words: distributed information

  19. Position sensor for linear synchronous motors employing halbach arrays

    DOE Patents [OSTI]

    Post, Richard Freeman

    2014-12-23T23:59:59.000Z

    A position sensor suitable for use in linear synchronous motor (LSM) drive systems employing Halbach arrays to create their magnetic fields is described. The system has several advantages over previously employed ones, especially in its simplicity and its freedom from being affected by weather conditions, accumulated dirt, or electrical interference from the LSM system itself.

  20. Global Studies Course List Fall 2010 (2111) COURSE LIST

    E-Print Network [OSTI]

    Jiang, Huiqiang

    2111-01-01T23:59:59.000Z

    ...........................................................................5 2. Global Economy and Global Governance .................................................9 3 from one of six Global Concentrations (Sustainable Development; Global Economy and Global GovernanceGlobal Studies Course List Fall 2010 (2111) Page 1 COURSE LIST Fall 2010 (2111) Global Studies

  1. UTILIZATION OF MODERNIZED GLOBAL NAVIGATION SATELLITE SYSTEMS

    E-Print Network [OSTI]

    Stanford University

    navigational aids owned by the Federal Aviation Administration (FAA) involve large costs which scale. A major role played by ground equipment in traditional aviation is that of providing assistance standpoint for aviation precision approaches. This dissertation investigates the use of a Multiple Hypothesis

  2. Sustainability. Systems integration for global sustainability.

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    of climate change, air pollution, and energy securityThese challenges include air pollution, biodiver- sity loss,with climate change and air pollution policies (the air-

  3. Sustainability. Systems integration for global sustainability.

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    climate change, energy shortages, and water scarcity) (15,species invasion, and water shortages and pollution. Theyhelped mitigate water shortages in water-poor countries (

  4. GEO Secretariat Global Earth Observing System of

    E-Print Network [OSTI]

    2009-11 Work Plan Objective: to improve the management and protection of terrestrial, coastal Survey #12; GEO Secretariat Trees are so much more sensible than people, steadier and more enduring and Epidemiology 3. Energy Management 4. Climate Variability & Change 5. Water Management 6. Weather Forecasting 7

  5. Advanced Propulsion Systems | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP Related LinksATHENAAdministrative80-AAAdvanced ModelingCFM LEAP

  6. Global Wind Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG Contracting Jump to:Echo,GEF Jump to:

  7. Robotic Intelligent System | GE Global Research

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection TechnicalResonantNovember 15 to

  8. Global Home File System at NERSC

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental AssessmentsGeoffrey(SC) GettingGit Git Prerequisites

  9. Global Scratch File System at NERSC

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental AssessmentsGeoffrey(SC) GettingGit Git PrerequisitesMaterialScratch

  10. Date December 6, 2011 Invites applications for the following position (s)

    E-Print Network [OSTI]

    C.U.P.E. Local 3338 - Temporary Position LIBRARY ASSISTANT, GRADE 3 LIBRARY SYSTEMS DIVISION with position title and classification. Performs other related duties consistent with position title and classification. Please Note: There are up to 8 part-time positions available working up to 24 hours bi

  11. Date December 4, 2014 Invites applications for the following position (s)

    E-Print Network [OSTI]

    or data entry with a high degree of accuracy. Some knowledge of Library LC Classification system C.U.P.E. Local 3338 Temporary Positions LIBRARY ASSISTANT, GRADE 3 LIBRARY LOANS DIVISION POSITION.) POSITION OUTLINE: This position is responsible for circulating library materials, responding to patron

  12. Selected papers for global `95 concerning plutonium

    SciTech Connect (OSTI)

    Sutcliffe, W.G. [ed.

    1996-06-14T23:59:59.000Z

    This report contains selected papers from the Global `95 Conference ``Evaluation of Emerging Nuclear Fuel Cycle Systems,`` held in Versailles, Sept. 11-14, 1995. The 11 papers in Part I are from ``Benefits and Risks of Reprocessing`` sessions. The 7 papers in Part II are some of the more interesting poster papers that relate to the use of Pu for power generation. Finally, the 3 papers are on the topic of management and disposition of Pu from retired nuclear weapons.

  13. Article mounting and position adjustment stage

    DOE Patents [OSTI]

    Cutburth, Ronald W. (Tracy, CA); Silva, Leonard L. (Livermore, CA)

    1988-01-01T23:59:59.000Z

    An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole.

  14. Article mounting and position adjustment stage

    DOE Patents [OSTI]

    Cutburth, R.W.; Silva, L.L.

    1988-05-10T23:59:59.000Z

    An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole. 6 figs.

  15. COMPARING TARGET POSITION WITH PRESENT POSITION: NEURAL VECTORS

    E-Print Network [OSTI]

    Grossberg, Stephen

    in a head co- ordinate map. The calibration of intermodality movement signals, the attentional selection of a target position for an intentional movement, and the encoding of sequencesof predictive saccades can all then make use of the movement parameters that were learned in the visually reactive mode. We will argue

  16. Microsoft PowerPoint - 6_Rowe-Future Challenges for Global Fuel...

    National Nuclear Security Administration (NNSA)

    International Atomic Energy Agency (IAEA), Nuclear Fuel Cycle Information System (NFCIS) web site IAEA Safeguards Begins Here 4 Future Challenges for Global Fuel Cycle Material...

  17. Multi-position photovoltaic assembly

    DOE Patents [OSTI]

    Dinwoodie, Thomas L. (Piedmont, CA)

    2003-03-18T23:59:59.000Z

    The invention is directed to a PV assembly, for use on a support surface, comprising a base, a PV module, a multi-position module support assembly, securing the module to the base at shipping and inclined-use angles, a deflector, a multi-position deflector support securing the deflector to the base at deflector shipping and deflector inclined-use angles, the module and deflector having opposed edges defining a gap therebetween. The invention permits transport of the PV assemblies in a relatively compact form, thus lowering shipping costs, while facilitating installation of the PV assemblies with the PV module at the proper inclination.

  18. Low noise optical position sensor

    DOE Patents [OSTI]

    Spear, J.D.

    1999-03-09T23:59:59.000Z

    A novel optical position sensor is described that uses two component photodiodes electrically connected in parallel, with opposing polarities. A lens provides optical gain and restricts the acceptance angle of the detector. The response of the device to displacements of an optical spot is similar to that of a conventional bi-cell type position sensitive detector. However, the component photodiode design enables simpler electronic amplification with inherently less electrical noise than the bi-cell. Measurements by the sensor of the pointing noise of a focused helium-neon laser as a function of frequency demonstrate high sensitivity and suitability for optical probe beam deflection experiments. 14 figs.

  19. Low noise optical position sensor

    DOE Patents [OSTI]

    Spear, Jonathan David (Berkeley, CA)

    1999-01-01T23:59:59.000Z

    A novel optical position sensor is described that uses two component photodiodes electrically connected in parallel, with opposing polarities. A lens provides optical gain and restricts the acceptance angle of the detector. The response of the device to displacements of an optical spot is similar to that of a conventional bi-cell type position sensitive detector. However, the component photodiode design enables simpler electronic amplification with inherently less electrical noise than the bi-cell. Measurements by the sensor of the pointing noise of a focused helium-neon laser as a function of frequency demonstrate high sensitivity and suitability for optical probe beam deflection experiments.

  20. No hair theorems for positive ?

    E-Print Network [OSTI]

    Sourav Bhattacharya; Amitabha Lahiri

    2007-11-19T23:59:59.000Z

    We extend all known black hole no-hair theorems to space-times endowed with a positive cosmological constant $\\Lambda.$ Specifically, we prove that static spherical black holes with $\\Lambda>0$ cannot support scalar fields in convex potentials and Proca-massive vector fields in the region between black hole and cosmic horizons. We also demonstrate the existence of at least one type of quantum hair, and of exactly one charged solution for the Abelian Higgs model. Our method of proof can be applied to investigate other types of quantum or topological hair on black holes in the presence of a positive $\\Lambda.$

  1. Environmental Regulation, Globalization, and Innovation

    E-Print Network [OSTI]

    Ashford, Nicholas

    2009-01-01T23:59:59.000Z

    This essay explores the complex relationship between environmental regulation, innovation, and sustainable development within the context of an increasingly globalizing economy. It will be argued that industrial policy, ...

  2. Machine Learning for Global Optimization

    E-Print Network [OSTI]

    schoen,,,

    Noname manuscript No. (will be inserted by the editor). Machine Learning for Global Optimization. A. Cassioli?. D. Di Lorenzo. ?. M. Locatelli. ??. F. Schoen.

  3. Global Optimization via Slack Variables

    E-Print Network [OSTI]

    Isaac Siwale

    2015-03-05T23:59:59.000Z

    London. England e-mail: ike_siwale@hotmail.com. Abstract. This paper presents a method for finding global optima to constrained nonlinear programs via slack...

  4. GLOBAL MONITORING OF URANIUM HEXIFLORIDE CYLINDERS NEXT STEPS IN DEVELOPMENT OF AN ACTION PLAN

    SciTech Connect (OSTI)

    Hanks, D.

    2010-06-09T23:59:59.000Z

    Over 40 industrial facilities world-wide use standardized uranium hexafluoride (UF{sub 6}) cylinders for transport, storage and in-process receiving in support of uranium conversion, enrichment and fuel fabrication processes. UF{sub 6} is processed and stored in the cylinders, with over 50,000 tU of UF{sub 6} transported each year in these International Organization for Standardization (ISO) qualified containers. Although each cylinder is manufactured to an ISO standard that calls for a nameplate with the manufacturer's identification number (ID) and the owner's serial number engraved on it, these can be quite small and difficult to read. Recognizing that each facility seems to use a different ID, a cylinder can have several different numbers recorded on it by means of metal plates, sticky labels, paint or even marker pen as it travels among facilities around the world. The idea of monitoring movements of UF{sub 6} cylinders throughout the global uranium fuel cycle has become a significant issue among industrial and safeguarding stakeholders. Global monitoring would provide the locations, movements, and uses of cylinders in commercial nuclear transport around the world, improving the efficiency of industrial operations while increasing the assurance that growing nuclear commerce does not result in the loss or misuse of cylinders. It should be noted that a unique ID (UID) attached to a cylinder in a verifiable manner is necessary for safeguarding needs and ensuring positive ID, but not sufficient for an effective global monitoring system. Modern technologies for tracking and inventory control can pair the UID with sensors and secure data storage for content information and complete continuity of knowledge over the cylinder. This paper will describe how the next steps in development of an action plan for employing a global UF{sub 6} cylinder monitoring network could be cultivated using four primary UID functions - identification, tracking, controlling, and accounting.

  5. CLIMATE CHANGE GLOBAL ECONOMY How to decarbonise the global economy

    E-Print Network [OSTI]

    CLIMATE CHANGE · GLOBAL ECONOMY How to decarbonise the global economy Today's report on deep efforts of independent experts from 15 countries to find national pathways to making economies based-zero emissions sometime in the second half of this century. This deep cut should occur in a growing world economy

  6. Faculty Positions Department of Physics

    E-Print Network [OSTI]

    Rock, Chris

    Faculty Positions Department of Physics Texas Tech University The Department of Physics at Texas condensed matter materials physics. Successful candidates at the senior level will be expected to transfer an existing successful research program to Texas Tech and instruct physics courses at all levels offered

  7. Information Updates: Position/Title

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Information Updates: Name: Position/Title: Business Mailing Address: Home Mailing Address: Phone of nurse involvement and patient education. She is an active nurse leader that brings thoughtful discussion be a chapter update for upcoming future events and plans for the future. Don't miss this exciting update! Beta

  8. International Potato Center POSITION ANNOUNCEMENT

    E-Print Network [OSTI]

    in 7 other African countries. CIP is launching a new going-to-scale project building on our successful research work on nutritious orange-fleshed sweetpotato in sub-Saharan Africa. We are looking for energetic reach farmers and consumers with new and innovative approaches and partnerships. The Position

  9. Global nuclear material monitoring

    SciTech Connect (OSTI)

    Howell, J.A.; Monlove, H.O.; Goulding, C.A.; Martinez, B.J.; Coulter, C.A.

    1997-08-01T23:59:59.000Z

    This is the final report of a one-year Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project provided a detailed systems design for advanced integrated facility monitoring and identified the components and enabling technologies required to facilitate the development of the monitoring system of the future.

  10. An Integrated Assessment Framework for Uncertainty Studies in Global and Regional Climate Change: The IGSM-CAM

    E-Print Network [OSTI]

    Monier, Erwan

    2012-06-18T23:59:59.000Z

    This paper describes an integrated assessment framework for uncertainty studies in global and regional climate change. In this framework, the Massachusetts Institute of Technology (MIT) Integrated Global System Model (IGSM), ...

  11. Global Calibration Claudio Albanese 1

    E-Print Network [OSTI]

    Albanese, Claudio

    Global Calibration Claudio Albanese 1 September 13, 2009 Abstract Current technology advances calibration strategies. Although the industry is largely based on local calibration, we argue that global calibration is nowadays emerging as technically feasible and represents a useful complement to existing method

  12. GLOBAL WARMING THE GREENHOUSE EFFECT

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    GLOBAL WARMING THE GREENHOUSE EFFECT AND YOUR FAMILY'S CONTRIBUTION TO IT Stephen E. Schwartz September 22, 2004 http://www.ecd.bnl.gov/steve/schwartz.html #12;#12;THE GREENHOUSE EFFECT #12;GLOBAL does anything about it. Mark Twain Mark Twain Now with the greenhouse effect, we ARE doing something

  13. GLOBAL IMPACT FROM THE HEART

    E-Print Network [OSTI]

    Mller, Jens-Dominik

    GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;#12;CHANCELLOR'S WELCOME 4 VICE: INNOVATIVE AND WORLD-CLASS 18 CONTACT 26 CONTENTS 3GLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND #12;Queen THE HEART OF NORTHERN IRELANDGLOBAL IMPACT FROM THE HEART OF NORTHERN IRELAND CHANCELLOR'S WELCOME

  14. Defining a changing world: the discourse of globalization

    E-Print Network [OSTI]

    Teubner, Gillian

    2004-09-30T23:59:59.000Z

    The globalization debate????????????.?? 20 The history of the world system?????????..?? 27 II CRITIQUES OF POPULAR BOOKS ON GLOBALIZATION....... 30 Friedman?s The Lexus and the Olive Tree??????.?. 34 Hardt and Negri?s Empire?????????????... 62... disciplinary discourses (see Robertson and Khondker, 1998). Economists debate the extent to which we now inhabit a perfect mobility of goods, labor and capital ? a condition created by deregulation, financial liberalization and the continued advancement...

  15. Bioinformatician position available Integrative Genomics of Ageing Group, University of Liverpool

    E-Print Network [OSTI]

    Bioinformatician position available Integrative Genomics of Ageing Group, University of Liverpool A bioinformatician position is available in the Integrative Genomics of Ageing Group at the University of Liverpool) systems biology, functional genomics, network analysis, and genome evolution. Applicants should have

  16. Global versus Nuclear Starbursts

    E-Print Network [OSTI]

    Francoise Combes

    2001-06-24T23:59:59.000Z

    The strongest starbursts are observed towards galaxy nuclei, or circumnuclear regions. However in interacting galaxies, star formation is also triggered in overlap regions far from nuclei, in spiral arms and sometimes in tidal tails. What is the relative importance of these starbursts? What kind of starformation is dominating, as a function of redshift? These different starbursts occur in different dynamical conditions (global and local): gravitational instabilities, density waves, radial flows, shear, cloud collisions, density accumulations, and they have been investigated with the help of numerical simulations. Gravitational instabilities are necessary to initiate star formation, but they are not sufficient; galactic disks are self-regulated through these instabilities to have their Toomre Q parameter of the order of 1, and thus this criterium is in practice unable to predict the onset of intense star formation. Super star clusters are a characteristic SF mode in starbursts, and might be due to the rapid formation of large gas complexes. Star formation can propagate radially inwards, due to gravity torques and gas inflow, but also outwards, due to superwinds, and energy outflows: both expanding or collapsing waves are observed in circumnuclear regions. Mergers are more efficient in forming stars at high redshift, because of larger gas content, and shorter dynamical times. The relation between nuclear starbursts and nuclear activity is based on the same fueling mechanisms, but also on reciprocal triggering and regulations.

  17. Winter 2015 Positive Parenting Group

    E-Print Network [OSTI]

    Winter 2015 Positive Parenting Group This is an eight-week parent group series starting Monday, January 12, 2015 Future parent group sessions to be held: January 26 (no group 19th ) February 2, 9 and 23 (no group 16th ) and March 2, 9 and 16 6:00 p.m. to 8:00 p.m. Room 145 of the Clinical Services

  18. Bell Nursery USA, LLC Internship Position Description

    E-Print Network [OSTI]

    Bell Nursery USA, LLC Internship Position Description Internship Program Goal as a grower. Grower/Internship position : It is our goal at Bell to provide a rewarding and educational experience to the student/intern. The internship position

  19. Engineering the global ecosystem

    E-Print Network [OSTI]

    Stringfellow, William T.; Jain, Ravi

    2010-01-01T23:59:59.000Z

    Manage- ment Plan Schemel LE, Sommer TR, Muller-Solger AB,ts to engineered systems (Sommer et al. 2001; Schemel et al.or agricultural productivity (Sommer et al. 2001; Schemel et

  20. NERSC Seeks New Director - Job Position Posted

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

    Seeks New Director - Job Position Posted NERSC Seeks New Director - Job Position Posted February 19, 2012 by Francesca Verdier (0 Comments) Current NERSC Director Kathy Yelick was...

  1. Temperature-associated increases in the global soil respiration record

    SciTech Connect (OSTI)

    Bond-Lamberty, Benjamin; Thomson, Allison M.

    2010-03-25T23:59:59.000Z

    Soil respiration (RS), the flux of CO2 from the soil surface to the atmosphere, comprises the second-largest terrestrial carbon flux, but its dynamics are incompletely understood, and the global flux remains poorly constrained. Ecosystem warming experiments, modelling analyses, and biokinetics all suggest that RS should change with climate. This has been difficult to confirm observationally because of the high spatial variability of RS, inaccessibility of the soil medium, and inability of remote sensing instruments to measure large-scale RS fluxes. Given these constraints, is it possible to discern climate-driven changes in regional or global RS fluxes in the extant four-decade record of RS chamber measurements? Here we use a database of worldwide RS observations, matched with high-resolution historical climate data, to show a previously unknown temporal trend in the RS record after accounting for mean annual climate, leaf area, nitrogen deposition, and changes in CO2 measurement technique. Air temperature anomaly (deviation from the 1961-1990 mean) is significantly and positively correlated with changes in RS fluxes; both temperature and precipitation anomalies exert effects in specific biomes. We estimate that the current (2008) annual global RS flux is 9812 Pg and has increased 0.1 Pg yr-1 over the last 20 years, implying a global RS temperature response (Q10) of 1.5. An increasing global RS flux does not necessarily constitute a positive feedback loop to the atmosphere; nonetheless, the available data are consistent with an acceleration of the terrestrial carbon cycle in response to global climate change.

  2. Resisting globalization- ATTAC in France: local discourses, global terrain

    E-Print Network [OSTI]

    Leonard, Marie des Neiges

    2007-04-25T23:59:59.000Z

    The debate over the "globalization" process has been influenced by the emergence of social movements who deplore this process. This research focuses on the French social movement ATTAC (Action for a Tobin Tax for the Aid of Citizens...

  3. Specific Examples of Global Activities Environmental assessment in Azerbaijan

    E-Print Network [OSTI]

    , global warming, and global entrepreneurship. Discovery Park works syner- gistically with the Office competitiveness, global energy security, global warming, and global entrepreneurship. Discovery Park worksSpecific Examples of Global Activities · Environmental assessment in Azerbaijan · Study abroad

  4. Global Security, Medical Isotopes, and Nuclear Science

    SciTech Connect (OSTI)

    Ahle, L E

    2007-09-17T23:59:59.000Z

    Over the past century basic nuclear science research has led to the use of radioactive isotopes into a wide variety of applications that touch our lives everyday. Some are obvious, such as isotopes for medical diagnostics and treatment. Others are less so, such as National/Global security issues. And some we take for granted, like the small amount of 241Am that is in every smoke detector. At the beginning of this century, we are in a position where the prevalence and importance of some applications of nuclear science are pushing the basic nuclear science community for improved models and nuclear data. Yet, at the same time, the push by the basic nuclear science community to study nuclei that are farther and farther away from stability also offer new opportunities for many applications. This talk will look at several global security applications of nuclear science, summarizing current R&D and need for improved nuclear data It will also look at how applications of nuclear science, such as to medicine, will benefit from the push for more and more powerful radioactive ion beam facilities.

  5. The China-in-Global Energy Model

    E-Print Network [OSTI]

    Qi, T.

    The China-in-Global Energy Model (C-GEM) is a global Computable General Equilibrium (CGE) model that captures the interaction of production, consumption and trade among multiple global regions and sectors including five ...

  6. The Private Regulation of Global Corporate Conduct

    E-Print Network [OSTI]

    Vogel, David

    2006-01-01T23:59:59.000Z

    is a major goal of the UN Global Compact as well as severalindustry codes. The UN Global Compact has more than 2,300exploit. For the UN, the Global Compact provides a vehicle

  7. Brussels, 07.10.2003 Position paper: Europe should lead the fight against global warming

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Europe's reliance on fossil fuels and, even sooner, its dependence on nuclear power. The necessary energy emissions reduction in 2020 as critical steps towards a complete withdrawal from fossil fuel in 2050 and social costs, in particular by the realisation of road pricing, connected with the possibility of cross-subsidies

  8. Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead

    E-Print Network [OSTI]

    Boonstra, Rudy

    Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

  9. Fluorescent fluid interface position sensor

    DOE Patents [OSTI]

    Weiss, Jonathan D.

    2004-02-17T23:59:59.000Z

    A new fluid interface position sensor has been developed, which is capable of optically determining the location of an interface between an upper fluid and a lower fluid, the upper fluid having a larger refractive index than a lower fluid. The sensor functions by measurement, of fluorescence excited by an optical pump beam which is confined within a fluorescent waveguide where that waveguide is in optical contact with the lower fluid, but escapes from the fluorescent waveguide where that waveguide is in optical contact with the upper fluid.

  10. Positive Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska: EnergyPiratiniEdwards,Posey County, Indiana: EnergyPositive Energy

  11. MIT Joint Program on the Science and Policy of Global Change

    E-Print Network [OSTI]

    MIT Joint Program on the Science and Policy of Global Change The EU's Emissions Trading Scheme on recycled paper #12;1 The EU's Emissions Trading Scheme: A Prototype Global System? Denny Ellerman* Abstract The European Union's Emission Trading Scheme (EU ETS) is the world's first multinational cap- and-trade system

  12. The Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic Significance of Global Inequality By Jeffrey D. Sachs

    E-Print Network [OSTI]

    27 The Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic Significance of Global InequalityThe Strategic

  13. 560 Communications of the Association for Information Systems (Volume 11, 2003)560-646 Global Diffusion of the Internet I India: Is the Elephant Learning to Dance? By P. Wolcott and S. E.

    E-Print Network [OSTI]

    Bieber, Michael

    levels of poverty, bloated bureaucracies, and protectionist policies. He envisioned the new India in place. Keywords: India, global diffusion of the Internet, telecommunications policy, Internet service Diffusion of the Internet ­ I India: Is the Elephant Learning to Dance? By P. Wolcott and S. E. Goodman

  14. Barton, M.D. and Johnson, D.A., 2004, Footprints of Fe-oxide(-Cu-Au) systems. SEG 2004: Predictive Mineral Discovery Under Cover. Centre for Global Metallogeny, Spec. Pub. 33, The University of Western Australia, 112-116.

    E-Print Network [OSTI]

    Barton, Mark D.

    Mineral Discovery Under Cover. Centre for Global Metallogeny, Spec. Pub. 33, The University of Western for Mineral Resources, Department of Geosciences University of Arizona, Tucson, AZ 85721-0077 USA barton@geo.arizona.edu Recognizing footprints of Fe-oxide(-Cu-Au) ("IOCG") mineralization depends on the perspective

  15. Global Environment Facility Evaluation Office

    E-Print Network [OSTI]

    Pfaff, Alex

    Global Environment Facility Evaluation Office PROTECTED AREAS AND AVOIDED DEFORESTATION #12;Protected Areas and Avoided Deforestation: An Econometric Evaluation - i - TABLE OF CONTENTS 1................................................................................4 3.3 ESTIMATED EFFECTS OF PROTECTED AREAS ON DEFORESTATION

  16. Global optimization in reduced space

    E-Print Network [OSTI]

    Wechsung, Achim

    2014-01-01T23:59:59.000Z

    Optimization is a key activity in any engineering discipline. Global optimization methods, in particular, strive to solve nonconvex problems, which often arise in chemical engineering, and deterministic algorithms such as ...

  17. 20 LI B E R A L ED U C A T I O N SP R I N G 2008 HOW MUCH will global temperatures rise over

    E-Print Network [OSTI]

    Bralower, Timothy J.

    ecosystems? Will global warming cause hurricanes more powerful than Andrew and Katrina? What triggers, and the realization that issues such as global warming require action on the part of individuals as well, the literal collapse of eco- systems, and of course, global warming--to name the obvious. Global warming

  18. The Department of Management Science and Information Systems of Rutgers Business School Newark and New Brunswick invites applications for a tenure-track position at the Assistant Professor rank to

    E-Print Network [OSTI]

    Lin, Xiaodong

    The Department of Management Science and Information Systems of Rutgers Business School Newark to start in September 2012. The department offers undergraduate programs in Management Science, Information Technology programs and it coordinates the tracks in Management Science and Information Technology

  19. NERSC Calculations Provide Independent Confirmation of Global...

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

    Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9,...

  20. Ultra-precision positioning assembly

    DOE Patents [OSTI]

    Montesanti, Richard C. (San Francisco, CA); Locke, Stanley F. (Livermore, CA); Thompson, Samuel L. (Pleasanton, CA)

    2002-01-01T23:59:59.000Z

    An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may be raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.