National Library of Energy BETA

Sample records for local terrain influences

  1. Resisting globalization- ATTAC in France: local discourses, global terrain 

    E-Print Network [OSTI]

    Leonard, Marie des Neiges

    2007-04-25

    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...

  2. Wind assessment in complex terrain with the numeric model Aiolos implementation of the influence of roughness changes and stability

    E-Print Network [OSTI]

    Heinemann, Detlev

    to the influence of roughness changes and the thermal stratification. Wind potential assessments of two sites of roughness changes on the terrain surface and thermal stratification of the at- mosphere are taken a neutral thermal stratification situation is assumed. But for a north eu- ropean situation a light stable

  3. Representing Terrain With Mathematical Operators

    E-Print Network [OSTI]

    Franklin, W. Randolph

    of the terrain's generation by digging channels in the surface. Given our current reliance on digital map data a series of parameters (including size and area of influence of the drill, as well as the density formation mimics physical phenomena associated with geological terrain formation (such as erosion, digging

  4. Urbanizing terrains

    E-Print Network [OSTI]

    Romanos, Christoforos

    2008-01-01

    Urban "sprawl"in the East Attica area of Athens has dramatically changed the former rural economy in a manner consistent with the urbanizing terrain's underlying properties: agricultural subdivisions, existing centres, ...

  5. Proprioceptive localization for a quadrupedal robot on known terrain Sachin Chitta, Paul Vernaza, Roman Geykhman and Daniel D. Lee

    E-Print Network [OSTI]

    Vernaza, Paul

    , Roman Geykhman and Daniel D. Lee GRASP Laboratory University of Pennsylvania Philadelphia, PA 19104. In another approach, the process of localization and choosing the right set of features is carried out

  6. Natural Influences of Forestson Local and Regional Air Quality

    E-Print Network [OSTI]

    Natural Influences of Forestson Local and Regional Air Quality Emissions and Air Resource smoke from w i l d f i r e and pre- scribed f i r e , emissions associated with concentrated rec- r e s e n t e d a t t h e Symposium on E f f e c t s of Air Effects of smoke on fauna a r e documented

  7. Influence of local capillary trapping on containment system effectiveness

    SciTech Connect (OSTI)

    Bryant, Steven

    2014-03-31

    Immobilization of CO2 injected into deep subsurface storage reservoirs is a critical component of risk assessment for geologic CO2 storage (GCS). Local capillary trapping (LCT) is a recently established mode of immobilization that arises when CO2 migrates due to buoyancy through heterogeneous storage reservoirs. This project sought to assess the amount and extent of LCT expected in storage formations under a range of injection conditions, and to confirm the persistence of LCT if the seal overlying the reservoir were to lose its integrity. Numerical simulation using commercial reservoir simulation software was conducted to assess the influence of injection. Laboratory experiments, modeling and numerical simulation were conducted to assess the effect of compromised seal integrity. Bench-scale (0.6 m by 0.6 m by 0.03 m) experiments with surrogate fluids provided the first empirical confirmation of the key concepts underlying LCT: accumulation of buoyant nonwetting phase at above residual saturations beneath capillary barriers in a variety of structures, which remains immobile under normal capillary pressure gradients. Immobilization of above-residual saturations is a critical distinction between LCT and the more familiar “residual saturation trapping.” To estimate the possible extent of LCT in a storage reservoir an algorithm was developed to identify all potential local traps, given the spatial distribution of capillary entry pressure in the reservoir. The algorithm assumes that the driving force for CO2 migration can be represented as a single value of “critical capillary entry pressure” Pc,entrycrit, such that cells with capillary entry pressure greater/less than Pc,entrycrit act as barriers/potential traps during CO2 migration. At intermediate values of Pc,entrycrit, the barrier regions become more laterally extensive in the reservoir, approaching a percolation threshold while non-barrier regions remain numerous. The maximum possible extent of LCT thus occurs at Pc,entrycrit near this threshold. Testing predictions of this simple algorithm against full-physics simulations of buoyancy-driven CO2 migration support the concept of critical capillary entry pressure. However, further research is needed to determine whether a single value of critical capillary entry pressure always applies and how that value can be determined a priori. Simulations of injection into high-resolution (cells 0.3 m on a side) 2D and 3D heterogeneous domains show two characteristic behaviors. At small gravity numbers (vertical flow velocity much less than horizontal flow velocity) the CO2 fills local traps as well as regions that would act as local barriers if CO2 were moving only due to buoyancy. When injection ceases, the CO2 migrates vertically to establish large saturations within local traps and residual saturation elsewhere. At large gravity numbers, the CO2 invades a smaller portion of the perforated interval. Within this smaller swept zone the local barriers are not invaded, but local traps are filled to large saturation during injection and remain during post-injection gravity-driven migration. The small gravity number behavior is expected in the region within 100 m of a vertical injection well at anticipated rates of injection for commercial GCS. Simulations of leakage scenarios (through-going region of large permeability imposed in overlying seal) indicate that LCT persists (i.e. CO2 remains held in a large fraction of the local iv traps) and the persistence is independent of injection rate during storage. Simulations of leakage for the limiting case of CO2 migrating vertically f

  8. GIS Fundamentals Lesson 10: Terrain Analysis Lesson 10: Terrain Analyses

    E-Print Network [OSTI]

    Butler, Christopher J.

    GIS Fundamentals Lesson 10: Terrain Analysis Lesson 10: Terrain Analyses What You'll Learn: Basic if needed. You should read chapter 11 in the GIS Fundamentals textbook before starting. Data are located processing, using the ArcGIS Hydrology tools. 1 #12;GIS Fundamentals Lesson 10: Terrain Analysis Project1

  9. Top-Down Influences on Local Networks: Basic Theory with Experimental Implications

    E-Print Network [OSTI]

    Srinivasan, Ramesh; Thorpe, Samuel; Nunez, Paul L

    2013-01-01

    lations and synchrony in top-down processing. Nat. Rev.functional coupling during top- down processing in a workingstate visual evoked potentials Top-down influences on local

  10. Terrainosaurus: realistic terrain synthesis using genetic algorithms 

    E-Print Network [OSTI]

    Saunders, Ryan L.

    2007-04-25

    a new, design-by-example method for synthesizing terrain height fields. In this approach, the user designs the layout of the terrain by sketching out simple regions using a CAD-style interface, and specifies the desired terrain characteristics...

  11. Cues to the sex ratio of the local population influence women's preferences for facial symmetry

    E-Print Network [OSTI]

    Little, Tony

    Cues to the sex ratio of the local population influence women's preferences for facial symmetry-00762 Keywords: attraction dominance fluctuating asymmetry mate preference sex ratio within-sex competition intensifies within-sex competition. In two experiments, we tested for analogous effects in humans

  12. All-terrain vehicle

    SciTech Connect (OSTI)

    Somerton-Rayner, M.

    1986-12-16

    This patent describes an all-terrain vehicle comprising: a chassis; four road wheel axles equally spaced along the chassis; suspension means mounting the axles on the chassis; wheels mounted adjacent both ends of each of the axles, the wheels on the foremost and the rearmost axles being steerably mounted; propulsion and driving means including a single internal combustion engine and gearbox, and first and second transfer boxes both coupled to be driven by the engine through the gearbox; the first transfer box driving the first and third axles and the second transfer box driving the second and fourth axles; means for driving in the alternative all four wheels and only the center two wheels; power-assisted steering gear means operatively connected to the steerably-mounted wheels of the foremost axle; and steering coupling means extending between the steerably-mounted wheels on the foremost and rearmost axles so dimensioned that upon steering of the front wheels, the rear wheels perform castoring constrained to a smaller turning angle and a lower rate of angular movement than the front wheels.

  13. Influence of nanoparticle-graphene separation on the localized surface plasmon resonances of metal nanoparticles

    E-Print Network [OSTI]

    Saadabad, Reza Masoudian; Shirdel-Havar, Amir Hushang; Havar, Majid Shirdel

    2015-01-01

    We develop a theory to model the interaction of graphene substrate with localized plasmon resonances in metallic nanoparticles. The influence of a graphene substrate on the surface plasmon resonances is described using an effective background permittivity that is derived from a pseudoparticle concept using the electrostatic method. For this purpose, the interaction of metal nanoparticle with graphene sheet is studied to obtain the optical spectrum of gold nanoparticles deposited on a graphene substrate. Then, we introduce a factor based on dipole approximation to predict the influence of the separation of nanoparticles and graphene on the spectral position of the localized plasmon resonance of the nanoparticles. We applied the theory for a 4 nm radius gold nanosphere placed near 1.5 nm graphene layer. It is shown that a blue shift is emerged in the position of plasmon resonance when the nanoparticle moves away from graphene.

  14. Cascading Power Outages Propagate Locally in an Influence Graph that is not the Actual Grid Topology

    E-Print Network [OSTI]

    Hines, Paul D H; Rezaei, Pooya

    2015-01-01

    In a cascading power transmission outage, component outages propagate non-locally; after one component outages, the next failure may be very distant, both topologically and geographically. As a result, simple models of topological contagion do not accurately represent the propagation of cascades in power systems. However, cascading power outages do follow patterns, some of which are useful in understanding and reducing blackout risk. This paper describes a method by which the data from many cascading failure simulations can be transformed into a graph-based model of influences that provides actionable information about the many ways that cascades propagate in a particular system. The resulting "influence graph" model is Markovian, since component outage probabilities depend only on the outages that occurred in the prior generation. To validate the model we compare the distribution of cascade sizes resulting from n-2 contingencies in a 2896 branch test case to cascade sizes in the influence graph. The two dist...

  15. Influence of local-field effects on the radiative lifetime of liquid suspensions of Nd:YAG

    E-Print Network [OSTI]

    Boyd, Robert W.

    Influence of local-field effects on the radiative lifetime of liquid suspensions of Nd Received July 24, 2006; revised September 29, 2006; accepted October 13, 2006; posted October 25, 2006 (Doc information regarding local-field effects, we fitted the ex- perimental data to three different local

  16. Minority influence on public organization change: Latinos and local education politics 

    E-Print Network [OSTI]

    Juenke, Eric

    2006-10-30

    of the majority. I show how representation in all three branches of government can lead to these changes, specifically in the local legislature and local bureaucracy. Secondly, I demonstrate the relationship between local legislative representation of Latino...

  17. The Influence of Local Winds on the Spatial Distribution of Air Pollutants in an Alpine Valley Acknowledgements

    E-Print Network [OSTI]

    Gohm, Alexander

    The Influence of Local Winds on the Spatial Distribution of Air Pollutants in an Alpine Valley January 2006: (a) time series of various meteorological and air-pollution parameters (see axes labels (ABL) of the Inn Valley, Austria, during episodes of high air pollution (Fig. 1a). A dataset

  18. Influence of local demography on asymptotic and transient dynamics of a yellow-bellied marmot metapopulation

    E-Print Network [OSTI]

    Armitage, Kenneth

    2009-01-01

    perspectives (Brito and Fernandez 2002; Ovaskainen and Hanski 2003; Figueira and Crowder 2006; Pellet et al. 2006). Most studies evaluating the relative importance of patches are based on models that do not explicitly consider local population dynamics... (Ovaskainen and Hanski 2003; Pellet et al. 2006). However, where data are available, ex­ plicit consideration of local dynamics can elucidate the demographic determinants of what constitutes an impor­ tant patch. Furthermore, dispersal of individuals...

  19. Creating Standards for Winter Terrain Parks

    E-Print Network [OSTI]

    to engineering frame motivated creation of a 501c(3) non-profit, United States Terrain Park Council Dedicated fatalities (31 male, 6 female) mostly young J. Shealy (2000) Snowboard injury rate doubled during 1990-2000 from 3.37 to 6.97 per 1000 skier days Deaths: 50 (2007-2008) 39 (2008-2009) Compiled by California Ski

  20. Influence of a local change of depth on the behavior of bouncing oil drops

    E-Print Network [OSTI]

    Carmigniani, Remi; Symon, Sean; McKeon, Beverley J

    2013-01-01

    The work of Couder \\textit{et al} (see also Bush \\textit{et al}) inspired consideration of the impact of a submerged obstacle, providing a local change of depth, on the behavior of oil drops in the bouncing regime. In the linked videos, we recreate some of their results for a drop bouncing on a uniform depth bath of the same liquid undergoing vertical oscillations just below the conditions for Faraday instability, and show a range of new behaviors associated with change of depth. This article accompanies a fluid dynamics video entered into the Gallery of Fluid Motion of the 66th Annual Meeting of the APS Division of Fluid Dynamics.

  1. Multiple Simultaneous Acoustic Source Localization in Urban Terrain

    E-Print Network [OSTI]

    Maróti, Miklós

    acoustic sources, eliminate multipath effects, tolerate multiple sensor failures while providing good civilian infrastructure (power and communication network), and robustness against node failures. Figure 1. depicts the acoustic events generated by a typical rifle shot. The muzzle blast produces a spherical wave

  2. Local Terrain Mapping for Obstacle Avoidance using Monocular Vision

    E-Print Network [OSTI]

    Langelaan, Jack W.

    a potential field obstacle avoidance routine are presented. Introduction Currently, many unmanned aerial Vehicles Specialist's Forum 1 #12;2 MARLOW AHS UNMANNED VEHICLES SPECIALIST'S FORUM all classes of unmanned unmanned rotorcraft through an unsurveyed envi- ronment consisting of forest and urban canyons. Optical

  3. Ductal Carcinoma in Situ-The Influence of the Radiotherapy Boost on Local Control

    SciTech Connect (OSTI)

    Wong, Philip [Division of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada); Lambert, Christine, E-mail: christine.lambert@muhc.mcgill.ca [Division of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada); Agnihotram, Ramanakumar V. [Division of Cancer Epidemiology, Department of Oncology, McGill University, Montreal, QC (Canada); David, Marc; Duclos, Marie; Freeman, Carolyn R. [Division of Radiation Oncology, McGill University Health Centre, Montreal, QC (Canada)

    2012-02-01

    Purpose: Local recurrence (LR) of ductal carcinoma in situ (DCIS) is reduced by whole-breast irradiation after breast-conserving surgery (BCS). However, the benefit of adding a radiotherapy boost to the surgical cavity for DCIS is unclear. We sought to determine the impact of the boost on LR in patients with DCIS treated at the McGill University Health Centre. Methods and Materials: A total of 220 consecutive cases of DCIS treated with BCS and radiotherapy between January 2000 and December 2006 were reviewed. Of the patients, 36% received a radiotherapy boost to the surgical cavity. Median follow-up was 46 months for the boost and no-boost groups. Kaplan-Meier survival analyses and Cox regression analyses were performed. Results: Compared with the no-boost group, patients in the boost group more frequently had positive and <0.1-cm margins (48% vs. 8%) (p < 0.0001) and more frequently were in higher-risk categories as defined by the Van Nuys Prognostic (VNP) index (p = 0.006). Despite being at higher risk for LR, none (0/79) of the patients who received a boost experienced LR, whereas 8 of 141 patients who did not receive a boost experienced an in-breast LR (log-rank p = 0.03). Univariate analysis of prognostic factors (age, tumor size, margin status, histological grade, necrosis, and VNP risk category) revealed only the presence of necrosis to significantly correlate with LR (log-rank p = 0.003). The whole-breast irradiation dose and fractionation schedule did not affect LR rate. Conclusions: Our results suggest that the use of a radiotherapy boost improves local control in DCIS and may outweigh the poor prognostic effect of necrosis.

  4. SHORT COMMUNICATION Dynamical analysis of winter terrain park jumps

    E-Print Network [OSTI]

    of this work is to show how a dynamical analysis can assess impact injury risks and inform safer terrain park frequently pose a hazard to patrons and may represent a significant liability risk to winter resorts. By performing a simple dynamic analysis of terrain park jumps, the relative risk to impact injuries for any

  5. Benthic Terrain Modeler: Interpreting the Bathymetric Environment Shaun Walbridge1

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    that they can be used on any digital elevation data. The inclusion of easily customizable terrain classification, aspect, and rugosity from an input bathymetric data set. Additionally, terrain classification scripts allow users the freedom to create their own zone and structure classifications and define

  6. Vibration-based Terrain Classification Using Support Vector Machines

    E-Print Network [OSTI]

    Zell, Andreas

    Vibration-based Terrain Classification Using Support Vector Machines Christian Weiss, Holger Fr a method for terrain classification based on vibration induced in the vehicle's body. An accelerometer mounted on the vehicle measures the vibration perpendicular to the ground surface. We experimentally

  7. Representation of Terrain Data Using a Mathematical "Drill" Operator

    E-Print Network [OSTI]

    Franklin, W. Randolph

    Representation of Terrain Data Using a Mathematical "Drill" Operator Christopher S. Stuetzle1 and W and Franklin (RPI) Autocarto 2012 17 Sep 2012 6 / 24 #12;The Drill Operator v Then cut along an ever deeper Creates hydrography. 1 How can we fit a drill to a terrain location (pixel) p? 2 How can we represent

  8. Title: Digital Terrain Model of Southern Ontario Data Creator /

    E-Print Network [OSTI]

    Title: Digital Terrain Model of Southern Ontario Data Creator / Copyright Owner: First Base/A Coverage Date(s): 2002 Updates: N/A Abstract: The Digital Terrain Model (DTM) of southern Ontario / UTM (17) Resolution: N/A Coordinates: N/A Index Map: N/A Keywords (Place): Ontario Keywords (Subject

  9. Digital terrain modeling with the Chebyshev polynomials

    E-Print Network [OSTI]

    Florinsky, I V

    2015-01-01

    Mathematical problems of digital terrain analysis include interpolation of digital elevation models (DEMs), DEM generalization and denoising, and computation of morphometric variables by calculation of partial derivatives of elevation. Traditionally, these procedures are based on numerical treatments of two-variable discrete functions of elevation. We developed a spectral analytical method and algorithm based on high-order orthogonal expansions using the Chebyshev polynomials of the first kind with the subsequent Fejer summation. The method and algorithm are intended for DEM analytical treatment, such as, DEM global approximation, denoising, and generalization as well as computation of morphometric variables by analytical calculation of partial derivatives. To test the method and algorithm, we used a DEM of the Northern Andes including 230,880 points (the elevation matrix 480 $\\times$ 481). DEMs were reconstructed with 480, 240, 120, 60, and 30 expansion coefficients. The first and second partial derivatives ...

  10. Park Profiler/Jump Analyzer Practical method for determining terrain park jump performance

    E-Print Network [OSTI]

    . Terrain Park jump safety as a rider/resort partnership II. USTPC criteria: Quantifying best practices in terrain park jump design III. "Park Profiler" - practical tool to measure TP jump IV. "Jump Analyzer of flying ... but, as Icarus leaned the hard way, there are risks. #12;Terrain Park Jump Safety Terrain park

  11. Terrain sensing and estimation for dynamic outdoor mobile robots

    E-Print Network [OSTI]

    Ward, Christopher Charles

    2007-01-01

    In many applications, mobile robots are required to travel on outdoor terrain at high speed. Compared to traditional low-speed, laboratory-based robots, outdoor scenarios pose increased perception and mobility challenges ...

  12. Flow over Heated Terrain. Part II: Generation of Convective Precipitation

    E-Print Network [OSTI]

    Tucker, Donna F.; Crook, N. Andrew

    2005-09-01

    Previous studies have shown that thunderstorms in the Rocky Mountain region have preferred areas in which to form. There has been some indication that these areas depend on the midtropospheric wind direction. A nonhydrostatic model with a terrain...

  13. Equilibrium-reduced density matrix formulation: Influence of noise, disorder, and temperature on localization in excitonic systems

    E-Print Network [OSTI]

    Moix, Jeremy M.

    An exact method to compute the entire equilibrium-reduced density matrix for systems characterized by a system-bath Hamiltonian is presented. The approach is based upon a stochastic unraveling of the influence functional ...

  14. The influence of local and imported factors on the design and construction of the Spanish missions in San Antonio, Texas 

    E-Print Network [OSTI]

    Crowley, Nancy E.

    2006-04-12

    and Mexico, as well as the traditions of local Native American groups of the period, and studies the effect of these cultures and San Antonio's environmental conditions on the resulting vernacular construction of the San Antonio missions. Each of the four...

  15. Geostatistical Mapping of Mountain Precipitation Incorporating Autosearched Effects of Terrain and Climatic Characteristics

    E-Print Network [OSTI]

    Texas at San Antonio, University of

    Geostatistical Mapping of Mountain Precipitation Incorporating Autosearched Effects of Terrain 2004, in final form 30 March 2005) ABSTRACT Hydrologic and ecologic studies in mountainous terrain mountain precipitation using only precipi- tation gauge data. The ASOADeK model considers both

  16. Parallel Implementation of a Vehicle-Tire-Terrain Interaction Model

    E-Print Network [OSTI]

    Negrut, Dan

    (VTTIM) · Three components o Vehicle o Tire o Terrain/Soil mechanics · Two interfaces o Vehicle support for ANCF `tire' 9 #12;Types of Soil Mechanics Models · Empirical Methods o WES numerics, Bekker of Tire Models · Rigid o Simple to implement in parallel o Only accurate if deformation of soil is much

  17. Towards a mathematics of terrain W. Randolph Franklin

    E-Print Network [OSTI]

    Franklin, W. Randolph

    explicitly, and · enforces global consistencies. Why? To put compression and other ops on a logical is derivative of elevation, but · that amplifies errors, and · lossy compression has errors, so · maybe we want the geology) to deep (simulating every molecule). · One solution: Scooping. Carve terrain from a block using

  18. The All Terrain Bio nano Gear for Space Radiation Detection System

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    The All Terrain Bio nano Gear for Space Radiation Detection System Ajay Ummat, Constantinos in real-time while an astronaut is in the mission. All Terrain Bio-nano (ATB) gear system is one the current or any other future space suits. The proposed All Terrain Bio nano (ATB) gear is one such concept

  19. Development of an Immersed Boundary Method to Resolve Complex Terrain in the Weather Research and Forecasting Model

    SciTech Connect (OSTI)

    Lunquist, K A; Chow, F K; Lundquist, J K; Mirocha, J D

    2007-09-04

    Flow and dispersion processes in urban areas are profoundly influenced by the presence of buildings which divert mean flow, affect surface heating and cooling, and alter the structure of turbulence in the lower atmosphere. Accurate prediction of velocity, temperature, and turbulent kinetic energy fields are necessary for determining the transport and dispersion of scalars. Correct predictions of scalar concentrations are vital in densely populated urban areas where they are used to aid in emergency response planning for accidental or intentional releases of hazardous substances. Traditionally, urban flow simulations have been performed by computational fluid dynamics (CFD) codes which can accommodate the geometric complexity inherent to urban landscapes. In these types of models the grid is aligned with the solid boundaries, and the boundary conditions are applied to the computational nodes coincident with the surface. If the CFD code uses a structured curvilinear mesh, then time-consuming manual manipulation is needed to ensure that the mesh conforms to the solid boundaries while minimizing skewness. If the CFD code uses an unstructured grid, then the solver cannot be optimized for the underlying data structure which takes an irregular form. Unstructured solvers are therefore often slower and more memory intensive than their structured counterparts. Additionally, urban-scale CFD models are often forced at lateral boundaries with idealized flow, neglecting dynamic forcing due to synoptic scale weather patterns. These CFD codes solve the incompressible Navier-Stokes equations and include limited options for representing atmospheric processes such as surface fluxes and moisture. Traditional CFD codes therefore posses several drawbacks, due to the expense of either creating the grid or solving the resulting algebraic system of equations, and due to the idealized boundary conditions and the lack of full atmospheric physics. Meso-scale atmospheric boundary layer simulations, on the other hand, are performed by numerical weather prediction (NWP) codes, which cannot handle the geometry of the urban landscape, but do provide a more complete representation of atmospheric physics. NWP codes typically use structured grids with terrain-following vertical coordinates, include a full suite of atmospheric physics parameterizations, and allow for dynamic synoptic scale lateral forcing through grid nesting. Terrain following grids are unsuitable for urban terrain, as steep terrain gradients cause extreme distortion of the computational cells. In this work, we introduce and develop an immersed boundary method (IBM) to allow the favorable properties of a numerical weather prediction code to be combined with the ability to handle complex terrain. IBM uses a non-conforming structured grid, and allows solid boundaries to pass through the computational cells. As the terrain passes through the mesh in an arbitrary manner, the main goal of the IBM is to apply the boundary condition on the interior of the domain as accurately as possible. With the implementation of the IBM, numerical weather prediction codes can be used to explicitly resolve urban terrain. Heterogeneous urban domains using the IBM can be nested into larger mesoscale domains using a terrain-following coordinate. The larger mesoscale domain provides lateral boundary conditions to the urban domain with the correct forcing, allowing seamless integration between mesoscale and urban scale models. Further discussion of the scope of this project is given by Lundquist et al. [2007]. The current paper describes the implementation of an IBM into the Weather Research and Forecasting (WRF) model, which is an open source numerical weather prediction code. The WRF model solves the non-hydrostatic compressible Navier-Stokes equations, and employs an isobaric terrain-following vertical coordinate. Many types of IB methods have been developed by researchers; a comprehensive review can be found in Mittal and Iaccarino [2005]. To the authors knowledge, this is the first IBM approach that is able to

  20. Atmospheric studies in complex terrain: a planning guide for future studies

    SciTech Connect (OSTI)

    Orgill, M.M.

    1981-02-01

    The objective of this study is to assist the US Department of Energy in Conducting its atmospheric studies in complex terrain (ASCOT0 by defining various complex terrain research systems and relating these options to specific landforms sites. This includes: (1) reviewing past meteorological and diffusion research on complex terrain; (2) relating specific terrain-induced airflow phenomena to specific landforms and time and space scales; (3) evaluating the technical difficulty of modeling and measuring terrain-induced airflow phenomena; and (4) avolving severdal research options and proposing candidate sites for continuing and expanding field and modeling work. To evolve research options using variable candidate sites, four areas were considered: site selection, terrain uniqueness and quantification, definition of research problems and research plans. 36 references, 111 figures, 20 tables.

  1. On-the-Fly Decompression and Rendering of Multiresolution Terrain

    SciTech Connect (OSTI)

    Lindstrom, P; Cohen, J D

    2009-04-02

    We present a streaming geometry compression codec for multiresolution, uniformly-gridded, triangular terrain patches that supports very fast decompression. Our method is based on linear prediction and residual coding for lossless compression of the full-resolution data. As simplified patches on coarser levels in the hierarchy already incur some data loss, we optionally allow further quantization for more lossy compression. The quantization levels are adaptive on a per-patch basis, while still permitting seamless, adaptive tessellations of the terrain. Our geometry compression on such a hierarchy achieves compression ratios of 3:1 to 12:1. Our scheme is not only suitable for fast decompression on the CPU, but also for parallel decoding on the GPU with peak throughput over 2 billion triangles per second. Each terrain patch is independently decompressed on the fly from a variable-rate bitstream by a GPU geometry program with no branches or conditionals. Thus we can store the geometry compressed on the GPU, reducing storage and bandwidth requirements throughout the system. In our rendering approach, only compressed bitstreams and the decoded height values in the view-dependent 'cut' are explicitly stored on the GPU. Normal vectors are computed in a streaming fashion, and remaining geometry and texture coordinates, as well as mesh connectivity, are shared and re-used for all patches. We demonstrate and evaluate our algorithms on a small prototype system in which all compressed geometry fits in the GPU memory and decompression occurs on the fly every rendering frame without any cache maintenance.

  2. FOREST-AIR FLUXES OF CARBON, WATER AND ENERGY OVER NON-FLAT TERRAIN

    E-Print Network [OSTI]

    Lee, Xuhui

    FOREST-AIR FLUXES OF CARBON, WATER AND ENERGY OVER NON-FLAT TERRAIN XUHUI LEE and XINZHANG HU-air exchange of carbon, water, and energy was conducted at a mid-latitude, mixed forest on non-flat terrain to address this question, we conducted a field experiment on energy and carbon exchanges in a mixed forest

  3. Title: Digital Terrain Model of Southern Ontario: City of Toronto Data Creator /

    E-Print Network [OSTI]

    Title: Digital Terrain Model of Southern Ontario: City of Toronto Data Creator / Copyright Owner Ontario is a topographic model of the earth's surface. The data files outline features such as: bridge: N/A Keywords (Place): Toronto, Ontario Keywords (Subject): Contours, Digital Terrain Models

  4. Stability of Passive Dynamic Walking on Uneven Terrain Katie Byl and Russ Tedrake

    E-Print Network [OSTI]

    Tedrake, Russ

    and MFPTs on uneven terrain. mh/m a (m) MFPT: std .5° MFPT: std 1.0° walker #1 2.0 .6 20 6 walker #2 0.3 .7 Institute of Technology email: katiebyl@mit.edu, russt@mit.edu, web: http terrain. Although deterministic definitions of stability do not apply, for sufficiently low levels

  5. A Realistic Framework for Delay-Tolerant Network Routing in Open Terrains with

    E-Print Network [OSTI]

    A Realistic Framework for Delay-Tolerant Network Routing in Open Terrains with Continuous Churn to classify routing protocols based on the difference in their behavior under churn. Keywords: Delay model churn in the network, by having these nodes enter the terrain as a Poisson process and exit

  6. Optimal Complete Terrain Coverage using an Unmanned Aerial Vehicle Anqi Xu, Chatavut Viriyasuthee, and Ioannis Rekleitis

    E-Print Network [OSTI]

    Dudek, Gregory

    Optimal Complete Terrain Coverage using an Unmanned Aerial Vehicle Anqi Xu, Chatavut Viriyasuthee an aerial vehicle. Ex- tensive experimental results in simulation validate the presented system, along. INTRODUCTION This paper presents a realization of an optimal terrain coverage algorithm for an Unmanned Aerial

  7. Local Adjustment of the Background Error Correlation for Surface Analyses over Complex Terrain

    E-Print Network [OSTI]

    Capecchi, Mario R.

    , FL Revision Submitted to: Weather and Forecasting August 23, 2004 1. Corresponding author address quantities are of great importance to weather forecasters. The need for analyses of meteorological surface variables (temperature, wind, etc.) over mountainous regions for applications such as forest fire

  8. Wind Regimes in Complex Terrain of the Great Valley of Eastern Tennessee

    SciTech Connect (OSTI)

    Birdwell, Kevin R [ORNL

    2011-05-01

    This research was designed to provide an understanding of physical wind mechanisms within the complex terrain of the Great Valley of Eastern Tennessee to assess the impacts of regional air flow with regard to synoptic and mesoscale weather changes, wind direction shifts, and air quality. Meteorological data from 2008 2009 were analyzed from 13 meteorological sites along with associated upper level data. Up to 15 ancillary sites were used for reference. Two-step complete linkage and K-means cluster analyses, synoptic weather studies, and ambient meteorological comparisons were performed to generate hourly wind classifications. These wind regimes revealed seasonal variations of underlying physical wind mechanisms (forced channeled, vertically coupled, pressure-driven, and thermally-driven winds). Synoptic and ambient meteorological analysis (mixing depth, pressure gradient, pressure gradient ratio, atmospheric and surface stability) suggested up to 93% accuracy for the clustered results. Probabilistic prediction schemes of wind flow and wind class change were developed through characterization of flow change data and wind class succession. Data analysis revealed that wind flow in the Great Valley was dominated by forced channeled winds (45 67%) and vertically coupled flow (22 38%). Down-valley pressure-driven and thermally-driven winds also played significant roles (0 17% and 2 20%, respectively), usually accompanied by convergent wind patterns (15 20%) and large wind direction shifts, especially in the Central/Upper Great Valley. The behavior of most wind regimes was associated with detectable pressure differences between the Lower and Upper Great Valley. Mixing depth and synoptic pressure gradients were significant contributors to wind pattern behavior. Up to 15 wind classes and 10 sub-classes were identified in the Central Great Valley with 67 joined classes for the Great Valley at-large. Two-thirds of Great Valley at-large flow was defined by 12 classes. Winds flowed on-axis only 40% of the time. The Great Smoky Mountains helped create down-valley pressure-driven winds, downslope mountain breezes, and divergent air flow. The Cumberland Mountains and Plateau were associated with wind speed reductions in the Central Great Valley, Emory Gap Flow, weak thermally-driven winds, and northwesterly down sloping. Ridge-and-valley terrain enhanced wind direction reversals, pressure-driven winds, as well as locally and regionally produced thermally-driven flow.

  9. Hazard avoidance for high-speed rough-terrain unmanned ground vehicles

    E-Print Network [OSTI]

    Spenko, Matthew J. (Matthew Julius), 1976-

    2005-01-01

    High-speed unmanned ground vehicles have important applications in rough-terrain. In these applications unexpected and dangerous situations can occur that require rapid hazard avoidance maneuvers. At high speeds, there is ...

  10. Modelling of wind turbine wakes in complex terrain using computational fluid dynamics 

    E-Print Network [OSTI]

    Makridis, Alexandros

    2012-06-25

    This thesis focuses on modelling of wind turbine wakes when they are affected by real complex terrain features, such as hills and forests, and also examines the effect of the rotational momentum imparted to the downstream ...

  11. Design methods for cost-effective teams of mobile robots in uncertain terrain

    E-Print Network [OSTI]

    Michaluk, Nathaniel

    2014-01-01

    Conducting planetary exploration missions with mobile robots is expensive, with costs ranging from hundreds of millions to billions of dollars. Developing reliable robots to work remotely on rough, uncertain terrain is ...

  12. Rough-terrain mobile robot planning and control with application to planetary exploration

    E-Print Network [OSTI]

    Iagnemma, Karl David

    2001-01-01

    Future planetary exploration missions will require mobile robots to perform difficult tasks in highly challenging terrain, with limited human supervision. Current motion planning and control algorithms are not well suited ...

  13. Mapping textures on 3d terrains: a hybrid cellular automata approach 

    E-Print Network [OSTI]

    Sinvhal, Swapnil

    2007-04-25

    It is a time consuming task to generate textures for large 3D terrain surfaces in computer games, flight simulations and computer animations. This work explores the use of cellular automata in the automatic generation of ...

  14. Guidance and control using model predictive control for low altitude real-time terrain following flight

    E-Print Network [OSTI]

    Lapp, Tiffany Rae, 1979-

    2004-01-01

    This thesis presents the design and implementation of a model predictive control based trajectory optimization method for Nap-of-the-Earth (NOE) flight. A NOE trajectory reference is generated over a subspace of the terrain. ...

  15. The design of a frame for an all terrain, lever propelled wheelchair

    E-Print Network [OSTI]

    Walton, John Michael

    2011-01-01

    This thesis outlines the process of designing a frame for the Leveraged Freedom Chair (LFC) Prime, an all-terrain levered powered wheelchair designed to improve the mobility of disabled individuals. This design allows for ...

  16. L2-Gain Optimization for Robust Bipedal Walking on Unknown Terrain Hongkai Dai and Russ Tedrake

    E-Print Network [OSTI]

    Tedrake, Russ

    control analysis and design methodologies without additional machinery. We attempt to provide that machinery here. In particular, we quantify the robustness of the system to terrain perturbations by defining

  17. Ph.D. Showcase: Measuring Terrain Distances Through Extracted Channel Networks

    E-Print Network [OSTI]

    Franklin, W. Randolph

    of elevation data. This is a crucial step in better- ing the design and construction of levees and dams. (Fully An important characteristic of a terrain is the drainage, or channel, network, because hydraulic erosion

  18. Terrain Influences on Synoptic Storm Structure and Mesoscale Precipitation Distribution during IPEX IOP3

    E-Print Network [OSTI]

    Monteverdi, John

    , University of Utah, Salt Lake City, Utah W. James Steenburgh NOAA Cooperative Institute for Regional Prediction and Department of Meteorology, University of Utah, Salt Lake City, Utah Justin A. W. Cox NOAA

  19. Ultrawideband radar clutter measurements of forested terrain, 1991--1992

    SciTech Connect (OSTI)

    Sheen, D.M.; Severtsen, R.H.; Prince, J.M.; Davis, K.C.; Collins, H.D.

    1993-06-01

    The ultrawideband (UWB) radar clutter measurements project was conducted to provide radar clutter data for new ultrawideband radar systems which are currently under development. A particular goal of this project is to determine if conventional narrow band clutter data may be extrapolated to the UWB case. This report documents measurements conducted in 1991 and additional measurements conducted in 1992. The original project consisted of clutter measurements of forested terrain in the Olympic National Forest near Sequim, WA. The impulse radar system used a 30 kW peak impulse source with a 2 Gigasample/second digitizer to form a UHF (300--1000 MHz) ultrawideband impulse radar system. Additional measurements were conducted in parallel using a Systems Planning Corporation (SPC) step-chirp radar system. This system utilized pulse widths of 1330 nanoseconds over a bandwidth of 300--1000 MHz to obtain similar resolution to the impulse system. Due to the slow digitizer data throughput in the impulse radar system, data collection rates were significantly higher using the step-chirp system. Additional forest clutter measurements were undertaken in 1992 to increase the amount of data available, and especially to increase the amount of data from the impulse radar system.

  20. Quantum Locality?

    SciTech Connect (OSTI)

    Stapp, Henry

    2011-11-10

    Robert Griffiths has recently addressed, within the framework of a ‘consistent quantum theory’ (CQT) that he has developed, the issue of whether, as is often claimed, quantum mechanics entails a need for faster-than-light transfers of information over long distances. He argues, on the basis of his examination of certain arguments that claim to demonstrate the existence of such nonlocal influences, that such influences do not exist. However, his examination was restricted mainly to hidden-variable-based arguments that include in their premises some essentially classical-physics-type assumptions that are fundamentally incompatible with the precepts of quantum physics. One cannot logically prove properties of a system by attributing to the system properties alien to that system. Hence Griffiths’ rejection of hidden-variable-based proofs is logically warranted. Griffiths mentions the existence of a certain alternative proof that does not involve hidden variables, and that uses only macroscopically described observable properties. He notes that he had examined in his book proofs of this general kind, and concluded that they provide no evidence for nonlocal influences. But he did not examine the particular proof that he cites. An examination of that particular proof by the method specified by his ‘consistent quantum theory’ shows that the cited proof is valid within that restrictive framework. This necessary existence, within the ‘consistent’ framework, of long range essentially instantaneous influences refutes the claim made by Griffiths that his ‘consistent’ framework is superior to the orthodox quantum theory of von Neumann because it does not entail instantaneous influences. An added section responds to Griffiths’ reply, which cites a litany of ambiguities that seem to restrict, devastatingly, the scope of his CQT formalism, apparently to buttress his claim that my use of that formalism to validate the nonlocality theorem is flawed. But the vagaries that he cites do not upset the proof in question. It is show here in detail why the precise statement of this theorem justifies the specified application of CQT. It is also shown, in response to his challenge, why a putative proof of locality that he has proposed is not valid.

  1. Immersed Boundary Methods for High-Resolution Simulation of Atmospheric Boundary-Layer Flow Over Complex Terrain

    E-Print Network [OSTI]

    Chow, Fotini Katopodes

    models, such as the Weather Research and Forecasting (WRF) model, are in- creasingly used for high facilitates explicit resolution of complex terrain, even urban terrain, in the WRF mesoscale model. First gradient boundary conditions. Specified diurnal heating in a valley, producing anabatic winds, is used

  2. The Inverting Effect of Curvature in Winter Terrain Park Jump Takeoffs J. A. McNeil

    E-Print Network [OSTI]

    a significantly greater head/neck injury risk to resort patrons than normal skiing activities [1­4]. One intentionally, curvature in the takeoff can lead to involuntary inversion. In this work we lay out the basic a potential injury risk. A mitigating takeoff design criterion adopted by the US Terrain Park Council based

  3. Modelling the "Pop" in Winter Terrain Park Jumps J. A. McNeil

    E-Print Network [OSTI]

    at ski resorts have found that jumping generally poses a signif- icantly greater risk of spine and head found that jumping generally (whether in a terrain park or not) poses a significantly greater risk of the feature." The authors have since identified experimental errors in this work and an erratum has been

  4. SVMs for Vibration-based Terrain Classification Christian Weiss, Matthias Stark, and Andreas Zell

    E-Print Network [OSTI]

    Zell, Andreas

    SVMs for Vibration-based Terrain Classification Christian Weiss, Matthias Stark, and Andreas Zell mobile robot traverses different types of ground surfaces, different types of vibrations are induced in the body of the robot. These vibrations can be used to learn a discrimination between different surfaces

  5. Using Immersive 3D Terrain Models For Fusion Of UAV Surveillance Imagery

    E-Print Network [OSTI]

    Scerri, Paul

    Using Immersive 3D Terrain Models For Fusion Of UAV Surveillance Imagery Sean Owens , Katia Sycara and Paul Scerri Carnegie Mellon University, Pittsburgh, PA, 15213, USA Teams of small and micro UAVs a single operator to utilize data from several UAVs and interact with the data in a more natural and less

  6. Horizontal structures in granulite terrains: A record of mountain building or mountain collapse?

    E-Print Network [OSTI]

    Sandiford, Mike

    Horizontal structures in granulite terrains: A record of mountain building or mountain collapse horizontal structures occurred during the metamorphic culmination and was followed by isobaric cooling that no significant erosional denudation fol- lowed the development of the horizontal structures and thus precludes

  7. Approximating the Visible Region of a Point on a Terrain Boaz Ben-Moshe

    E-Print Network [OSTI]

    Ben-Moshe, Boaz

    enough; that is, whenever the difference between the sets of visible segments along the cross sections computes the (projections of the) visible por- tions of the cross section of T in this direc§ Abstract Given a terrain T and a point p on or above it, we wish to compute the region Rp that is visible

  8. Saving the soil: AgriLife units work to improve training terrain 

    E-Print Network [OSTI]

    Orth, Melanie

    2011-01-01

    Saving the soil AgriLife units work to improve training terrain Story by Melanie Orth txH2O | pg. 9 Heavy tanks and armored vehicles that have continually rolled over the 67,000-acre West Range at Fort Hood for the past 60 years have...

  9. An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains

    E-Print Network [OSTI]

    Hu, Hui

    1 An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex, 50011 An experimental study was conducted to investigate the interferences of wind turbines sited over conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case

  10. CO2 transport over complex terrain Jielun Sun a,*, Sean P. Burns a

    E-Print Network [OSTI]

    Stephens, Britton B.

    CO2 transport over complex terrain Jielun Sun a,*, Sean P. Burns a , Anthony C. Delany a , Steven P; accepted 15 February 2007 Abstract CO2 transport processes relevant for estimating net ecosystem exchange investigated during a pilot experiment. We found that cold, moist, and CO2- rich air was transported downslope

  11. Large Eddy Simulation of Stable Boundary Layer Turbulent Processes in Complex Terrain

    SciTech Connect (OSTI)

    Eric D. Skyllingstad

    2005-01-26

    Research was performed using a turbulence boundary layer model to study the behavior of cold, dense flows in regions of complex terrain. Results show that flows develop a balance between turbulent entrainment of warm ambient air and dense, cold air created by surface cooling. Flow depth and strength is a function of downslope distance, slope angle and angle changes, and the ambient air temperature.

  12. Autonomous Vision-based Landing and Terrain Mapping Using an MPC-controlled Unmanned Rotorcraft

    E-Print Network [OSTI]

    Sastry, S. Shankar

    determines the best trajectory to cover large areas of terrain or to perform closer inspection of potential by tracking the refer- ence trajectory as computed by a real-time MPC-based op- timization. This trajectory. of Aerospace Engineering, Ko- rea Advanced Institute of Science and Technology, Daejeon, South Korea: hcshim

  13. Evaluation of Single-Doppler Radar Wind Retrievals in Flat and Complex Terrain

    SciTech Connect (OSTI)

    Newsom, Rob K.; Berg, Larry K.; Pekour, Mikhail S.; Fast, Jerome D.; Xu, Qin; Zhang, Pengfei; Yang, Qing; Shaw, William J.; Flaherty, Julia E.

    2014-08-01

    The accuracy of winds derived from NEXRAD level II data is assessed by comparison with independent observations from 915 MHz radar wind profilers. The evaluation is carried out at two locations with very different terrain characteristics. One site is located in an area of complex terrain within the State Line Wind Energy Center in northeast Oregon. The other site is located in an area of flat terrain on the east-central Florida coast. The National Severe Storm Laboratory’s 2DVar algorithm is used to retrieve wind fields from the KPDT (Pendleton OR) and KMLB (Melbourne FL) NEXRAD radars. Comparisons between the 2DVar retrievals and the radar profilers were conducted over a period of about 6 months and at multiple height levels at each of the profiler sites. Wind speed correlations at most observation height levels fell in the range from 0.7 to 0.8, indicating that the retrieved winds followed temporal fluctuations in the profiler-observed winds reasonably well. The retrieved winds, however, consistently exhibited slow biases in the range of1 to 2 ms-1. Wind speed difference distributions were broad with standard deviations in the range from 3 to 4 ms-1. Results from the Florida site showed little change in the wind speed correlations and difference standard deviations with altitude between about 300 and 1400 m AGL. Over this same height range, results from the Oregon site showed a monotonic increase in the wind speed correlation and a monotonic decrease in the wind speed difference standard deviation with increasing altitude. The poorest overall agreement occurred at the lowest observable level (~300 m AGL) at the Oregon site, where the effects of the complex terrain were greatest.

  14. A case study of pipeline route selection and design through discontinuous permafrost terrain in northwestern Alberta

    SciTech Connect (OSTI)

    Wiechnik, C.; Boivin, R.; Henderson, J.; Bowman, M.

    1996-12-31

    As the natural gas pipeline system in Western Canada expands northward, it traverses the discontinuous permafrost zone. As the ground temperature of the frozen soil in this zone is just below freezing, it can be expected that within the design life of a pipeline the permafrost adjacent to it will melt due to the disturbance of the insulating cover by construction activities. Differential settlement at the thawing frozen/unfrozen soil interfaces gives rise to pipeline strain. Based on the calculated settlement and resulting strain level, a cost effective mechanical or civil design solution can be selected to mitigate the differential settlement problem. Since these design solutions can be costly, it is desirable to combine them with a pipeline route that traverses the least amount of discontinuous permafrost terrain while minimizing the overall length of the pipeline. This paper will detail the framework utilized to select the routing for a package of pipeline projects in northwestern Alberta. It is believed that the increased front end effort will result in lower operating costs and an overall reduced life-cycle cost. This basic design methodology can be applied to any project that traverses discontinuous permafrost terrain.

  15. The Local Interstellar Medium

    E-Print Network [OSTI]

    Redfield, S

    2006-01-01

    The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general interstellar phenomena in great detail and in three dimensions. In particular, high resolution optical and ultraviolet spectroscopy have proven to be powerful tools for addressing fundamental questions concerning the physical conditions and three-dimensional (3D) morphology of this local material. After reviewing our current understanding of the structure of gas in the solar neighborhood, I will discuss the influence that the LISM can have on stellar and planetary systems, including LISM dust deposition onto planetary atmospheres and the modulation of galactic cosmic rays through the astrosphere - the balancing interface between the outward pressure of the magnetized stellar wind and the inward pressure of the surrounding interstellar medium. On Earth, galactic cosmic rays may play a role as contributors to ozone layer chemistry, planetary electrical discharge frequency, biological mutation rates, and cl...

  16. Development of an Integrated Sensor System for Obstacle Detection and Terrain Evaluation for Application to Unmanned Ground

    E-Print Network [OSTI]

    Florida, University of

    Development of an Integrated Sensor System for Obstacle Detection and Terrain Evaluation field of view of 50 degrees and 38 degrees, respectively. Two sensor systems were utilized to evaluate., Wexford Pennsylvania ABSTRACT This paper describes the development and performance of a sensor system

  17. Bipedal Robotic Walking on Flat-Ground, Up-Slope and Rough Terrain with Human-Inspired Hybrid Zero Dynamics 

    E-Print Network [OSTI]

    Nadubettu Yadukumar, Shishir 1986-

    2012-12-10

    The thesis shows how to achieve bipedal robotic walking on flat-ground, up-slope and rough terrain by using Human-Inspired control. We begin by considering human walking data and find outputs (or virtual constraints) that, when calculated from...

  18. Monitoring high-mountain terrain deformation from repeated air-and spaceborne optical data: examples using digital

    E-Print Network [OSTI]

    Kääb, Andreas

    Monitoring high-mountain terrain deformation from repeated air- and spaceborne optical data 2002 Abstract High mountains represent one of the most dynamic environments on earth. Monitoring of F 60 m RMS of the ASTER DEM was found for rough high-mountain topography, and F 18 m RMS

  19. Innovative Gamma Ray Spectrometer Detection Systems for Conducting Scanning Surveys on Challenging Terrain - 13583

    SciTech Connect (OSTI)

    Palladino, Carl; Mason, Bryan; Engle, Matt; LeVangie, James [The Palladino Company, Inc., 720 Fillmore St., San Francisco, CA 94117 (United States)] [The Palladino Company, Inc., 720 Fillmore St., San Francisco, CA 94117 (United States); Dempsey, Gregg [United States Environmental Protection Agency, P.O. Box 98517, Las Vegas, NV 89193-8517 (United States)] [United States Environmental Protection Agency, P.O. Box 98517, Las Vegas, NV 89193-8517 (United States); Klemovich, Ron [HydroGeoLogic, Inc., 6340 Glenwood, Suite 200, Building No. 7, Overland Park, KS 66202 (United States)] [HydroGeoLogic, Inc., 6340 Glenwood, Suite 200, Building No. 7, Overland Park, KS 66202 (United States)

    2013-07-01

    The Santa Susana Field Laboratory located near Simi Valley, California was investigated to determine the nature and extent of gamma radiation anomalies. The primary objective was to conduct gamma scanning surveys over 100 percent of the approximately 1,906,000 square meters (471 acre) project site with the most sensitive detection system possible. The site had challenging topography that was not conducive to traditional gamma scanning detection systems. Terrain slope varied from horizontal to 48 degrees and the ground surface ranged from flat, grassy meadows to steep, rocky hillsides. In addition, the site was home to many protected endangered plant and animal species, and archaeologically significant sites that required minimal to no disturbance of the ground surface. Therefore, four innovative and unique gamma ray spectrometer detection systems were designed and constructed to successfully conduct gamma scanning surveys of approximately 1,076,000 square meters (266 acres) of the site. (authors)

  20. Shear Wave Velocity Structure of Southern African Crust: Evidence for Compositional Heterogeneity within Archaean and Proterozoic Terrains

    SciTech Connect (OSTI)

    Kgaswane, E M; Nyblade, A A; Julia, J; Dirks, P H H M; Durrheim, R J; Pasyanos, M E

    2008-11-11

    Crustal structure in southern Africa has been investigated by jointly inverting receiver functions and Rayleigh wave group velocities for 89 broadband seismic stations spanning much of the Precambrian shield of southern Africa. 1-D shear wave velocity profiles obtained from the inversion yield Moho depths that are similar to those reported in previous studies and show considerable variability in the shear wave velocity structure of the lower part of the crust between some terrains. For many of the Archaean and Proterozoic terrains in the shield, S velocities reach 4.0 km/s or higher over a substantial part of the lower crust. However, for most of the Kimberley terrain and adjacent parts of the Kheis Province and Witwatersrand terrain, as well as for the western part of the Tokwe terrain, mean shear wave velocities of {le} 3.9 km/s characterize the lower part of the crust along with slightly ({approx}5 km) thinner crust. These findings indicate that the lower crust across much of the shield has a predominantly mafic composition, except for the southwest portion of the Kaapvaal Craton and western portion of the Zimbabwe Craton, where the lower crust is intermediate-to-felsic in composition. The parts of the Kaapvaal Craton underlain by intermediate-to-felsic lower crust coincide with regions where Ventersdorp rocks have been preserved, and thus we suggest that the intermediate-to-felsic composition of the lower crust and the shallower Moho may have resulted from crustal melting during the Ventersdorp tectonomagmatic event at c. 2.7 Ga and concomitant crustal thinning caused by rifting.

  1. The Local Interstellar Medium

    E-Print Network [OSTI]

    Seth Redfield

    2006-01-06

    The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general interstellar phenomena in great detail and in three dimensions. In particular, high resolution optical and ultraviolet spectroscopy have proven to be powerful tools for addressing fundamental questions concerning the physical conditions and three-dimensional (3D) morphology of this local material. After reviewing our current understanding of the structure of gas in the solar neighborhood, I will discuss the influence that the LISM can have on stellar and planetary systems, including LISM dust deposition onto planetary atmospheres and the modulation of galactic cosmic rays through the astrosphere - the balancing interface between the outward pressure of the magnetized stellar wind and the inward pressure of the surrounding interstellar medium. On Earth, galactic cosmic rays may play a role as contributors to ozone layer chemistry, planetary electrical discharge frequency, biological mutation rates, and climate. Since the LISM shares the same volume as practically all known extrasolar planets, the prototypical debris disks systems, and nearby low-mass star-formation sites, it will be important to understand the structures of the LISM and how they may influence planetary atmospheres.

  2. Local Universities

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

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

  3. Local Information

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E CChinaC L S C OLocal Information Local

  4. Influence of physiography and vegetation on small mammals at the Naval Petroleum Reserves, California

    SciTech Connect (OSTI)

    Cypher, B.L.

    1995-02-13

    Influence of physiography and vegetation on small mammal abundance and species Composition was investigated at Naval Petroleum Reserve No. 1 in California to assess prey abundance for Federally endangered San Joaquin kit foxes (Vulpes macrotis mutica) and to assess the distribution of two Federal candidate species, San Joaquin antelope squirrels (Ammospermophilus nelsoni) and short-nosed kangaroo rats (Dinodomys nitratoides brevinasus). The specific objectives of this investigation were to determine whether small mammal abundance and community composition varied with north-south orientation, terrain, ground cover, and Cypher shrub density, and whether these factors influenced the distribution and abundance of San Joaquin antelope squirrels and short-nosed kangaroo rats.

  5. Approximating the Visible Region of a Point on a Terrain Boaz BenMoshe # Paz Carmi + Matthew J. Katz #

    E-Print Network [OSTI]

    Katz, Matthew "Matya"

    supporting ray shooting queries from p, due to Cole and Sharir [5], and its running time is O(n log 2 n. Katz # Abstract Given a terrain and a point p on or above it, we wish to compute the region R p that is visible from p. We present a generic radar­like algorithm for computing an approxima­ tion of R p

  6. Resources for Local Policymakers

    SciTech Connect (OSTI)

    SEE Action

    2012-06-01

    Provides a summary of State and Local Energy Efficiency Action Network (SEE Action) information resources available to local policymakers, organized by topic.

  7. Twenty-five Years of Sea Turtle Protection in Brazil: Evaluating Local Effects 

    E-Print Network [OSTI]

    Pegas, Fernanda V.

    2010-01-16

    interviews. Results indicate that conservation strategies implemented by TAMAR seem to influence local support for sea turtle conservation. Income and environmental education programs to the local children are cited as the main benefits sea turtle...

  8. Effects of Terrain Heights and Sizes on Island-Scale Circulations and Rainfall for the Island of Hawaii during HaRP

    E-Print Network [OSTI]

    Chen, Yi-Leng

    of Hawaii during HaRP YANG YANG AND YI-LENG CHEN Department of Meteorology, SOEST, University of Hawaii at Manoa, Honolulu, Hawaii (Manuscript received 9 August 2006, in final form 23 April 2007) ABSTRACT Islands in Hawaii have different sizes and terrain heights with notable differences in climate and weather

  9. Assessing Terrain Stability in a GIS using SINMAP Pack, R.T. Research Associate Professor, Tarboton, D.G., Associate Professor1

    E-Print Network [OSTI]

    Tarboton, David

    Assessing Terrain Stability in a GIS using SINMAP Pack, R.T. Research Associate Professor, Tarboton State University, Logan, UT 84322-5230 Presented at the 15th annual GIS conference, GIS 2001, February 19-22, Vancouver, British Columbia Abstract SINMAP (Stability Index MAPping) is an ArcView GIS

  10. Campus Environmental Factors Influencing Student Leadership Development and Civic Engagement 

    E-Print Network [OSTI]

    Boren, Laura

    2012-02-14

    community member and local community member was an environmental factor influencing participants’ commitment to civic engagement. Participants who were engaged in their personal cultural heritage articulated a deeper understanding of leadership and had a...

  11. INVESTIGATION OF A DYNAMIC POWER LINE RATING CONCEPT FOR IMPROVED WIND ENERGY INTEGRATION OVER COMPLEX TERRAIN

    SciTech Connect (OSTI)

    Jake P. Gentle; Kurt S Myers; Tyler B Phillips; Inanc Senocak; Phil Anderson

    2014-08-01

    Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of power line to be based on real-time conductor temperature dependent on local weather conditions. In current practice overhead power lines are generally given a conservative rating based on worst case weather conditions. Using historical weather data collected over a test bed area, we demonstrate there is often additional transmission capacity not being utilized with the current static rating practice. We investigate a new dynamic line rating methodology using computational fluid dynamics (CFD) to determine wind conditions along transmission lines at dense intervals. Simulated results are used to determine conductor temperature by calculating the transient thermal response of the conductor under variable environmental conditions. In calculating the conductor temperature, we use both a calculation with steady-state assumption and a transient calculation. Under low wind conditions, steady-state assumption predicts higher conductor temperatures that could lead to curtailments, whereas transient calculations produce conductor temperatures that are significantly lower, implying the availability of additional transmission capacity.

  12. Marine carbonate embayment system in an Eolian dune terrain, Permian Upper Minnelusa Formation, Rozet Area, Powder River Basin, Wyoming

    SciTech Connect (OSTI)

    Achauer, C.W.

    1987-05-01

    The eolian origin for Minnelusa sandstones has been stressed in numerous published articles. However, the dolomites that are interbedded with the eolian sandstones have received little attention. Isopach mapping of one of the dolomite units (Dolomite I) reflects a marine embayment system whose individual embayments range from 1/2 to 1 mi in width and trend primarily in a northwest direction. Consistently the embayment dolomites pinch out against the flanks of reworked, low relief, broad, eolian dune ridges. So far, 108 mi/sup 2/ of the Dolomite I marine embayment system have been mapped, but the overall extent of the system is undoubtedly much greater. Dolomite I is rarely cored, but cores from stratigraphically higher embayment dolomites in the upper Minnelusa show that these dolomites display the following, shoaling-upward sequence: (1) subtidal, sparingly fossiliferous dolomite; (2) intertidal, algal-laminated or brecciated or mud-cracked dolomite; and (3) very thin, supratidal, nodular anhydrite. The embayments, therefore, became the sites of marine sabkhas located between eolian dunes. Two main conclusions emerge from this study: (1) the juxtaposition of eolian sandstones and marine dolomites in a tectonically stable area suggests that eustatic sea level changes and a very arid climate were responsible for the marked environmental and lithologic changes observed in the upper Minnelusa, and (2) arid, coastal, evaporitic sabkhas bordered by eolian dunes are known from a number of modern and ancient cases, but marine carbonate embayments and associated evaporitic sabkhas that penetrate deeply into eolian sandstone terrains are rare.

  13. Evaluation of WRF predicted near hub-height winds and ramp events over a Pacific Northwest site with complex terrain

    SciTech Connect (OSTI)

    Yang, Qing; Berg, Larry K.; Pekour, Mikhail S.; Fast, Jerome D.; Newsom, Rob K.; Stoelinga, Mark; Finley, Cathy

    2013-08-16

    The WRF model version 3.3 is used to simulate near hub-height winds and power ramps utilizing three commonly used planetary boundary-layer (PBL) schemes: Mellor-Yamada-Janji? (MYJ), University of Washington (UW), and Yonsei University (YSU). The predicted winds have small mean biases compared with observations. Power ramps and step changes (changes within an hour) consistently show that the UW scheme performed better in predicting up ramps under stable conditions with higher prediction accuracy and capture rates. Both YSU and UW scheme show good performance predicting up- and down- ramps under unstable conditions with YSU being slightly better for ramp durations longer than an hour. MYJ is the most successful simulating down-ramps under stable conditions. The high wind speed and large shear associated with low-level jets are frequently associated with power ramps, and the biases in predicted low-level jet explain some of the shown differences in ramp predictions among different PBL schemes. Low-level jets were observed as low as ~200 m in altitude over the Columbia Basin Wind Energy Study (CBWES) site, located in an area of complex terrain. The shear, low-level peak wind speeds, as well as the height of maximum wind speed are not well predicted. Model simulations with 3 PBL schemes show the largest variability among them under stable conditions.

  14. Local Regression and Likelihood

    E-Print Network [OSTI]

    Masci, Frank

    Local Regression and Likelihood Clive Loader Springer #12;#12;#12;#12;#12;Preface This book, and the associated software, have grown out of the author's work in the field of local regression over the past- ods and in particular regression, for example at the level of Draper and Smith (1981). The theoretical

  15. Outer continental shelf development and the North Carolina coast: a guide for local planners

    SciTech Connect (OSTI)

    Brower, D.J.; McElyea, W.D.; Godschalk, D.R.; Lofaro, N.D.

    1981-08-01

    This guide supplies local governments in North Carolina's coastal region with information on (1) the facilities and activities associated with outer continental shelf (OCS) oil and gas development, (2) their impacts on coastal communities, and (3) how local governments can manage these impacts. Offshore activities and onshore facilities accompanying each stage of OCS development (leasing, exploration, field development, production, and shutdown) are described, including factors influencing facility siting, local economies, and local natural resources. The guide helps local governments apply this information by presenting ways in which they can influence the development process.

  16. Geography of local configurations

    E-Print Network [OSTI]

    David Coupier

    2010-10-12

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

  17. Local Public Finance

    E-Print Network [OSTI]

    Quigley, John M.

    2008-01-01

    1959. The Theory of Public Finance. New York: McGraw-Hill.T. 2003. School finance, spatial income segregation, and theJohn M. "local public finance." The New Palgrave Dictionary

  18. Local STAR Libraries

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC) ProximityCenterLeeincreasesLocal HighLocal

  19. Local Blog Get Listed

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Home· Local Blog· Get Listed· Popular Listings· More Directories· Advertise Here· Home » Arlington ... | directoryofarlingt... 1/9/2011http://www.directoryofarlington.com/blog/2011/01/ut ... | directoryofarlingt... 1/9/2011http://www.directoryofarlington.com/blog/2011/01/ut

  20. Lithium Local Pseudopotential Using

    E-Print Network [OSTI]

    Petta, Jason

    Lithium Local Pseudopotential Using DFT Sergio Orozco Student Advisor: Chen Huang Faculty Mentor Lithium LPS Test Lithium LPS #12;Density Functional Theory (DFT) Successful quantum mechanical approach (1979) #12;Building LPS for Lithium Create a LPS using NLPS density for Lithium Test LPS by comparing

  1. Supersymmetry and localization

    E-Print Network [OSTI]

    Albert Schwarz; Oleg Zaboronsky

    1995-11-15

    We study conditions under which an odd symmetry of the integrand leads to localization of the corresponding integral over a (super)manifold. We also show that in many cases these conditions guarantee exactness of the stationary phase approximation of such integrals.

  2. LEEDBuilding LocalGovernments

    E-Print Network [OSTI]

    Radcliffe, David

    their jurisdictions' green building programs. #12;1LEED Building Ordinances for Local Governments LEED Building are increasingly common. Most of these ordinances adopt the Leadership in Energy and Environmental Design (LEED) Green Rating System, promulgated by the U.S. Green Building Council (USGBC). The LEED rating system sets

  3. Local microwave background radiation

    E-Print Network [OSTI]

    Domingos Soares

    2014-11-13

    An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

  4. NEW DIRECTIONS IN LOCAL HISTORY

    E-Print Network [OSTI]

    Banaji,. Murad

    NEW DIRECTIONS IN LOCAL HISTORY SINCE HOSKINS Edited by Christopher Dyer, Andrew Hopper, Evelyn Lord and Nigel Tringham New Directions in Local History since Hoskins Local history in Britain can of the publication of his Local History in England which was designed to help people researching the history

  5. Medial Axis Local Planner: Local Planning for Medial Axis Roadmaps 

    E-Print Network [OSTI]

    Manavi, Kasra Mehron

    2012-07-16

    implemented this local planner and have tested it in 2D and 3D rigid body and 8D and 16D fixed base articulated linkage environments. We compare MALP with a straight-line local planner (SL), a typical local planer used in motion planning that interpolated...

  6. Bayesian locally weighted online learning 

    E-Print Network [OSTI]

    Edakunni, Narayanan U.

    2010-01-01

    Locally weighted regression is a non-parametric technique of regression that is capable of coping with non-stationarity of the input distribution. Online algorithms like Receptive FieldWeighted Regression and Locally ...

  7. Local Experts in Social Media 

    E-Print Network [OSTI]

    Bachani, Vandana

    2013-12-04

    The problem of finding topic experts on social networking sites has been a continued topic of research. This thesis addresses the problem of identifying local experts in social media systems like Twitter. Local experts are experts with a topical...

  8. Performing a local barrier operation

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

    2014-03-04

    Performing a local barrier operation with parallel tasks executing on a compute node including, for each task: retrieving a present value of a counter; calculating, in dependence upon the present value of the counter and a total number of tasks performing the local barrier operation, a base value, the base value representing the counter's value prior to any task joining the local barrier; calculating, in dependence upon the base value and the total number of tasks performing the local barrier operation, a target value of the counter, the target value representing the counter's value when all tasks have joined the local barrier; joining the local barrier, including atomically incrementing the value of the counter; and repetitively, until the present value of the counter is no less than the target value of the counter: retrieving the present value of the counter and determining whether the present value equals the target value.

  9. Performing a local barrier operation

    DOE Patents [OSTI]

    Archer, Charles J; Blocksome, Michael A; Ratterman, Joseph D; Smith, Brian E

    2014-03-04

    Performing a local barrier operation with parallel tasks executing on a compute node including, for each task: retrieving a present value of a counter; calculating, in dependence upon the present value of the counter and a total number of tasks performing the local barrier operation, a base value of the counter, the base value representing the counter's value prior to any task joining the local barrier; calculating, in dependence upon the base value and the total number of tasks performing the local barrier operation, a target value, the target value representing the counter's value when all tasks have joined the local barrier; joining the local barrier, including atomically incrementing the value of the counter; and repetitively, until the present value of the counter is no less than the target value of the counter: retrieving the present value of the counter and determining whether the present value equals the target value.

  10. Local Option- Clean Energy Financing

    Broader source: Energy.gov [DOE]

    Property-Assessed Clean Energy (PACE) financing effectively allows property owners to borrow money through their local government to pay for energy improvements. The amount borrowed is typically...

  11. Exploring the Localization of Transportation Planning: Essays on research and policy implications from shifting goals in transportation planning

    E-Print Network [OSTI]

    King, David Andrew

    2009-01-01

    Conroy. 2000. Are We Planning for Sustainable Development?Journal of the American Planning Association 66 (1):21-33.1994. The Influence of State Planning Mandates on Local Plan

  12. Airflow-terrain interactions through a mountain gap, with an example of eolian activity beneath an atmospheric hydraulic jump

    SciTech Connect (OSTI)

    Gaylord, D.R.; Dawson, P.J.

    1987-09-01

    The integration of atmospheric soundings from a fully instrumented aircraft with detailed sedimentary and geomorphic analyses of eolian features in the Ferris dune field of south-central Wyoming lends insight into the manner in which topography interacts with airflow to modify eolian activity. Topographically modified airflow results in zones of airflow deceleration, acceleration, and enhanced atmospheric turbulence, all of which influence the surface morphology and sedimentology. Extreme lateral confluence of prevailing airflow produces accelerated, unidirectional winds. These winds correlate with unusually continuous and elongate parabolic dunes that extend into a mountain gap (Windy Gap). Persistently heightened winds produced at the entrance to Windy Gap have resulted in a concentration of active sand dunes that lack slipfaces. Common development of a strongly amplified atmospheric wave analogous to a hydraulic jump in the gap contributes to the formation of a variety of eolian features that mantle the surface of Windy Gap and the Ferris dune field tail. Heightened, unidirectional winds in this zone promote grain-size segregation, the formation of elongated and aligned sand drifts, climbing and falling dunes, elongate scour streaks, and parabolic dunes that have low-angle (< 20/sup 0/) cross-stratification. Deflation of bedrock and loose sediment has been enhanced in the zone of maximum turbulence beneath the hydraulic jump.

  13. ANDERSON LOCALIZATION FOR TIME PERIODIC

    E-Print Network [OSTI]

    disorder, Anderson localization in Z d is stable un- der localized time-periodic perturbations by proving random Schrodinger operators at large disorder has been well known since the seminal work of Fr is approximated by the potential V . The equation governing the system is (1.5) i @ @t = (#1; + V ) on Z d #2

  14. Local Power in Quantum Mechanics

    E-Print Network [OSTI]

    Guillermo Albareda; Fabio Lorenzo Traversa; Xavier Oriols

    2015-11-12

    A general expression for the local power of a quantum system is derived. Defined as the time rate of change of the kinetic energy evaluated in a finite volume $\\Omega$ of the physical space, the local power exhibits contributions from both many-body classical and quantum correlations. Significantly, quantum correlations are manifested through the presence of non-local sources/sinks of power and through the action of local forces with no classical counterpart. The soundness of our results is proved along three limits of particular relevance: the closed-system limit ($\\Omega \\to \\infty$), the limit of non-interacting particles, and invoking classicality. Interestingly, we show that quantum fingerprints arise on the local power expression only when the volume $\\Omega$ is finite. Otherwise we recover a classical-like expression. This work could be of particular interest in the field of nanoelectronics, where the realization of a zero-power technology constitutes a long standing challenge.

  15. Local Termination: theory and practice

    E-Print Network [OSTI]

    Endrullis, Joerg; Waldmann, Johannes

    2010-01-01

    The characterisation of termination using well-founded monotone algebras has been a milestone on the way to automated termination techniques, of which we have seen an extensive development over the past years. Both the semantic characterisation and most known termination methods are concerned with global termination, uniformly of all the terms of a term rewriting system (TRS). In this paper we consider local termination, of specific sets of terms within a given TRS. The principal goal of this paper is generalising the semantic characterisation of global termination to local termination. This is made possible by admitting the well-founded monotone algebras to be partial. We also extend our approach to local relative termination. The interest in local termination naturally arises in program verification, where one is probably interested only in sensible inputs, or just wants to characterise the set of inputs for which a program terminates. Local termination will be also be of interest when dealing with a specif...

  16. Termination Detection of Local Computations

    E-Print Network [OSTI]

    Godard, Emmanuel; Tel, Gerard

    2010-01-01

    Contrary to the sequential world, the processes involved in a distributed system do not necessarily know when a computation is globally finished. This paper investigates the problem of the detection of the termination of local computations. We define four types of termination detection: no detection, detection of the local termination, detection by a distributed observer, detection of the global termination. We give a complete characterisation (except in the local termination detection case where a partial one is given) for each of this termination detection and show that they define a strict hierarchy. These results emphasise the difference between computability of a distributed task and termination detection. Furthermore, these characterisations encompass all standard criteria that are usually formulated : topological restriction (tree, rings, or triangu- lated networks ...), topological knowledge (size, diameter ...), and local knowledge to distinguish nodes (identities, sense of direction). These re- sult...

  17. Non-Local Correlations and Interactive Games

    E-Print Network [OSTI]

    Preda, Daniel Ciprian

    2011-01-01

    non-local provers P NL such that the acceptance probabilitynon-local provers P i Q such that the acceptance probabilitythe same acceptance probability CHAPTER 4. GENERAL NON-LOCAL

  18. Geometric Urban Geo-Localization Mayank Bansal1,2

    E-Print Network [OSTI]

    Daniilidis, Kostas

    that the computed camera poses can be efficiently ranked by a simple skyline projection step using building edges- locating a street-level image using only the corners and roof-line edges of the buildings visible proven efficient and effective for geolocating in a mountain- ous terrain [1], their adaptation to urban

  19. State and local economic development tools : how does the range of state-level economic development tools available to a locality influence the way local resources are deployed?

    E-Print Network [OSTI]

    Piercy, Brett I. (Brett Ianthe)

    2010-01-01

    Patterns in Community Development Block Grant (CDBG) expenditures for economic development in selected states were analyzed to explore whether differences in economic development tools, policies and programs available at ...

  20. Localization via Automorphisms of the CARs. Local gauge invariance

    E-Print Network [OSTI]

    Hendrik Grundling; Karl-Hermann Neeb

    2010-01-07

    The classical matter fields are sections of a vector bundle E with base manifold M. The space L^2(E) of square integrable matter fields w.r.t. a locally Lebesgue measure on M, has an important module action of C_b^\\infty(M) on it. This module action defines restriction maps and encodes the local structure of the classical fields. For the quantum context, we show that this module action defines an automorphism group on the algebra A, of the canonical anticommutation relations on L^2(E), with which we can perform the analogous localization. That is, the net structure of the CAR, A, w.r.t. appropriate subsets of M can be obtained simply from the invariance algebras of appropriate subgroups. We also identify the quantum analogues of restriction maps. As a corollary, we prove a well-known "folk theorem," that the algebra A contains only trivial gauge invariant observables w.r.t. a local gauge group acting on E.

  1. algorithmic computation of local cohomology modules and the local

    E-Print Network [OSTI]

    Knowledge of local cohomology modules provides interesting in-. formation .... below). Most of the algorithmic ideas in this section appear already in .... mials of An, subject to m < m ... on which gi we pick amongst those whose initial term divides the initial ..... For purposes of reference we also list algorithms that compute the.

  2. Derived Hom-Tensor adjointness. Local duality.

    E-Print Network [OSTI]

    2009-02-22

    Feb 16, 2009 ... 1 Left-derived functors. Tensor and Tor. 2 Hom -Tensor adjunction. 3 Abstract local duality. 4 Concrete local duality. 5 Residues and duality for ...

  3. Local

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E CChinaC L S C O NLivingtearing mode

  4. Local

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E CChinaC L S C O NLivingtearing

  5. Local

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E CChinaC L S C O NLivingtearingparticle

  6. Furthering Your Local Governments' Energy Efficiency Goals: Getting Support from Local Leaders

    Broader source: Energy.gov [DOE]

    Power Point presentation from the Furthering your Local Governments Energy Efficiency Goals part 1 Getting Support From Local Leaders webcast.

  7. The soil microbiome influences grapevine-associated microbiota

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

    Zarraonaindia, Iratxe; Owens, Sarah M.; Weisenhorn, Pamela; West, Kristin; Hampton-Marcell, Jarrad; Lax, Simon; Bokulich, Nicholas A.; Mills, David A.; Martin, Gilles; Taghavi, Safiyh; et al

    2015-03-24

    Grapevine is a well-studied, economically relevant crop, whose associated bacteria could influence its organoleptic properties. In this study, the spatial and temporal dynamics of the bacterial communities associated with grapevine organs (leaves, flowers, grapes, and roots) and soils were characterized over two growing seasons to determine the influence of vine cultivar, edaphic parameters, vine developmental stage (dormancy, flowering, preharvest), and vineyard. Belowground bacterial communities differed significantly from those aboveground, and yet the communities associated with leaves, flowers, and grapes shared a greater proportion of taxa with soil communities than with each other, suggesting that soil may serve as a bacterialmore »reservoir. A subset of soil microorganisms, including root colonizers significantly enriched in plant growth-promoting bacteria and related functional genes, were selected by the grapevine. In addition to plant selective pressure, the structure of soil and root microbiota was significantly influenced by soil pH and C:N ratio, and changes in leaf- and grape-associated microbiota were correlated with soil carbon and showed interannual variation even at small spatial scales. Diazotrophic bacteria, e.g., Rhizobiaceae and Bradyrhizobium spp., were significantly more abundant in soil samples and root samples of specific vineyards. Vine-associated microbial assemblages were influenced by myriad factors that shape their composition and structure, but the majority of organ-associated taxa originated in the soil, and their distribution reflected the influence of highly localized biogeographic factors and vineyard management.« less

  8. Kampung Capacity Local Solutions for

    E-Print Network [OSTI]

    Kammen, Daniel M.

    utility customers. Using a hybrid energy resource optimization framework, we explore optimal configuration to come from a mixture of locally managed small-scale hydroelectricity, biogas generators and accompanying of the Baram River Basin in Sarawak as the basin next scheduled for mega hydroelectricity development

  9. On the local variation of the Hubble constant

    SciTech Connect (OSTI)

    Odderskov, Io; Hannestad, Steen [Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark); Haugbølle, Troels, E-mail: isho07@phys.au.dk, E-mail: sth@phys.au.dk, E-mail: troels.haugboelle@snm.ku.dk [Centre for Star and Planet Formation, Natural History Museum of Denmark and Niels Bohr Institute University of Copenhagen, DK-1350 Copenhagen (Denmark)

    2014-10-01

    We have carefully studied how local measurements of the Hubble constant, H{sub 0}, can be influenced by a variety of different parameters related to survey depth, size, and fraction of the sky observed, as well as observer position in space. Our study is based on N-body simulations of structure in the standard ?CDM model and our conclusion is that the expected variance in measurements of H{sub 0} is far too small to explain the current discrepancy between the low value of H{sub 0} inferred from measurements of the cosmic microwave background (CMB) by the Planck collaboration and the value measured directly in the local universe by use of Type Ia supernovae. This conclusion is very robust and does not change with different assumptions about effective sky coverage and depth of the survey or observer position in space.

  10. Yield Enhancement of Digital Microfluidics-Based Biochips Using Space Redundancy and Local Reconfiguration*

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    Yield Enhancement of Digital Microfluidics-Based Biochips Using Space Redundancy and Local to avoid faulty elements. Digital microfluidics- based biochips are also amenable to redundancy-based yield. As microfluidics-based biochips become more complex, manufacturing yield will have significant influence

  11. Local algorithms for graph partitioning and finding dense subgraphs

    E-Print Network [OSTI]

    Andersen, Reid

    2007-01-01

    ed local partitioning algorithm . . . . . . . . . . . .7 A Local Algorithm for Finding DenseComparison of local partitioning algorithms . . . . . . . .

  12. Quasi-local energy for cosmological models

    E-Print Network [OSTI]

    Chiang-Mei Chen; Jian-Liang Liu; James M. Nester

    2007-05-15

    First we briefly review our covariant Hamiltonian approach to quasi-local energy, noting that the Hamiltonian-boundary-term quasi-local energy expressions depend on the chosen boundary conditions and reference configuration. Then we present the quasi-local energy values resulting from the formalism applied to homogeneous Bianchi cosmologies. Finally we consider the quasi-local energies of the FRW cosmologies. Our results do not agree with certain widely accepted quasi-local criteria.

  13. New Terrain for Rural Politics

    E-Print Network [OSTI]

    Fox, Jonathan A

    1992-01-01

    sobrevivir en Santa Maria. Democracia social en un sindicato5. Maruja Barrig, "Democracia Emergente y Movimiento dein Movimientos Sociales y Democracia: Lafundacidnde un nuevo

  14. The Local Dimension of Energy

    E-Print Network [OSTI]

    Kelly, Scott

    2011-01-31

     emissions  from  local  authority  owned  infrastructure  (excluding social housing energy consumption).    10 More  importantly,  additional  energy  savings  can  be  made  from  the  more  than  3.6  million homes in the UK classified as “social rented...  regional development agendas. In contrast, the USA has a  somewhat centralised political administration where power for the most part of the 20th  5 As measured by energy intensity in 2006 (gross inland consumption (GDP) / kg of oil equivalent) source: IEA...

  15. Atmospheric Environment 41 (2007) 59946004 Local and regional anthropogenic influence on

    E-Print Network [OSTI]

    Zheng, Mei

    2007-01-01

    correlative characteristics for zinc when Hong Kong sites are paired with Shenzhen (average r ¼ 0 of bromide point to sources located within the Pearl River Delta, but the specific location is yet

  16. Synoptic and local influences on boundary layer processes, with an application to California wind power

    E-Print Network [OSTI]

    Mansbach, David K

    2010-01-01

    means fall in greater windpower classes than does Palmcontrast, would only fall in windpower classes 1, 3, 2, and

  17. Synoptic and local influences on boundary layer processes, with an application to California wind power

    E-Print Network [OSTI]

    Mansbach, David K

    2010-01-01

    maps showing locations of wind power conversion facilities,of US winds and wind power at 80 m derived fromEvaluation of global wind power. Journal of Geo- physical

  18. Local Environmental Pollution Strongly Influences Culturable Bacterial Aerosols at an Urban Aquatic Superfund Site

    E-Print Network [OSTI]

    Uriarte, Maria

    or aquatic environments contaminated with sewage, hydrocarbons, heavy metals, and other industrial waste communities containing contaminated soil and water. INTRODUCTION In 1978, Bovallius and colleagues observed aerosol fallout rate and surface water bacterial concentrations were at least an order of magnitude

  19. Synoptic and local influences on boundary layer processes, with an application to California wind power

    E-Print Network [OSTI]

    Mansbach, David K

    2010-01-01

    stations, and other ob- servation and buoy sites used in thePrograms of the National Data Buoy Center. Bulletin of theand Winant, C. , 1995: Buoy observations of the atmosphere

  20. Synoptic and local influences on boundary layer processes, with an application to California wind power

    E-Print Network [OSTI]

    Mansbach, David K.

    2010-01-01

    3.4.2 Wind roses . . . . . . . .Figure 5.5: Downscaled wind speed changes and componentin?uences on California’s wind energy resource. Part 1:

  1. The potential for trickle up : how local actors' experiments influence national forest policy planning

    E-Print Network [OSTI]

    Blockhus, Jill M

    2006-01-01

    The loss of forests in Vietnam encouraged central government policy makers to consider new ways to manage forest resources. A major forest policy shift -- moving away from state-led management -- began in earnest in pilot ...

  2. Magnesium and titanium: "The odd couple" Local order and the influence of stress on the

    E-Print Network [OSTI]

    Dam, Bernard

    . . . . . . . . . . . . . . . . . . . . . . 9 1.2.2 A short history of switchable mirrors . . . . . . . . . . . 9 1.3 Solar collectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.2 Mg-Ti-H thin films for smart solar collectors . . . . . . . . . . . 20 2.2.1 Introduction

  3. Influence of network topology on cooperative problem-solving systems

    E-Print Network [OSTI]

    Fontanari, José F

    2015-01-01

    The idea of a collective intelligence behind the complex natural structures built by organisms suggests that the organization of social networks is selected so as to optimize problem-solving competence at the group-level. Here we study the influence of the social network topology on the performance of a group of agents whose task is to locate the global maxima of NK fitness landscapes. Agents cooperate by broadcasting messages informing on their fitness and use this information to imitate the fittest agent in their influence networks. In the case those messages convey accurate information on the proximity of the solution (i.e., for smooth fitness landscapes) we find that high connectivity as well as centralization boost the group performance. For rugged landscapes, however, these characteristics are beneficial for small groups only. For large groups, it is advantageous to slow down the information transmission through the network to avoid local maximum traps. Long-range links and modularity have marginal effe...

  4. The influence of changes in water content on the electrical resistivity of a natural unsaturated loess

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 The influence of changes in water content on the electrical resistivity of a natural unsaturated relationship between the water content and the electrical resistivity of soils. In this work, a new electrical resistivity probe was developed to monitor the change in local water content in the triaxial apparatus

  5. Weather and herbivores influence fertility in the endangered fern Botrychium multifidum (S.G. Gmel.) Rupr

    E-Print Network [OSTI]

    Shefferson, Richard P.

    Weather and herbivores influence fertility in the endangered fern Botrychium multifidum (S.G. Gmel Fluctuations in local weather conditions and other stochastic processes are important factors affecting species-008-9501-3 #12;Weather conditions are important sources of environmental stochasticity and have been shown

  6. Local Representation in the Context of Decentralization: Mayors, Citizens, and Local Governance in Latin America 

    E-Print Network [OSTI]

    Shockley, Bethany L

    2014-06-06

    aspects of local representation: government responsiveness and procedural inclusiveness. I examine local representation in the context of decentralization because local officials and citizens interact according to the set of decentralization policies...

  7. How Waste Management Can Be Influenced By Transport Packagings

    SciTech Connect (OSTI)

    Roland, V.

    2002-02-28

    With major D&D projects ongoing or being planned, and also with the daily management of radwaste from nuclear facilities, the potential role of transport packagings has often been overlooked: here will one rely essentially on drums, there several local waste processing units are built, elsewhere decommissioned facilities are cut in small bits to fit into small containers by far less efficient. The present paper proposes to illustrate how integrating a transport system from the start may influence operational choices of waste management.

  8. Improving locality with dynamic memory allocation 

    E-Print Network [OSTI]

    Jula, Alin Narcis

    2009-05-15

    . Hint Limitations . . . . . . . . . . . . . . . . . . 36 B. Allocators . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 1. TP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 a. Allocation & Deallocation . . . . . . . . . . . . . 41 b.... Pitfalls . . . . . . . . . . . . . . . . . . . . . . . . 62 4. Summary of TP, Defero and Medius . . . . . . . . . . 63 C. Design Challenges for Locality Improving Allocators . . . . 65 1. Speed Competes with Fragmentation . . . . . . . . . . 66 2. Locality...

  9. Sensor network localization based on natural phenomena

    E-Print Network [OSTI]

    Kim, Daniel Sang

    2006-01-01

    Autonomous localization is crucial for many sensor network applications. The goal of this thesis is to develop a distributed localization algorithm for the PLUG indoor sensor network by analyzing sound and light sensory ...

  10. Local Option- Solar Sales Tax Exemption

    Broader source: Energy.gov [DOE]

    The exemption does not apply to solar pool heating or other recreational applications. The laws also permit local governments (municipalities and counties) to grant an exemption from local sales...

  11. Origin of radiative recombination and manifestations of localization effects in GaAs/GaNAs core/shell nanowires

    SciTech Connect (OSTI)

    Chen, S. L.; Filippov, S.; Chen, W. M.; Buyanova, I. A.; Ishikawa, Fumitaro

    2014-12-22

    Radiative carrier recombination processes in GaAs/GaNAs core/shell nanowires grown by molecular beam epitaxy on a Si substrate are systematically investigated by employing micro-photoluminescence (?-PL) and ?-PL excitation (?-PLE) measurements complemented by time-resolved PL spectroscopy. At low temperatures, alloy disorder is found to cause localization of photo-excited carriers leading to predominance of optical transitions from localized excitons (LE). Some of the local fluctuations in N composition are suggested to lead to strongly localized three-dimensional confining potential equivalent to that for quantum dots, based on the observation of sharp and discrete PL lines within the LE contour. The localization effects are found to have minor influence on PL spectra at room temperature due to thermal activation of the localized excitons to extended states. Under these conditions, photo-excited carrier lifetime is found to be governed by non-radiative recombination via surface states which is somewhat suppressed upon N incorporation.

  12. "Furthering Your Local Governments' Energy Efficiency Goals-- Part 1- Getting Support From Local Leaders "

    Broader source: Energy.gov [DOE]

    DOE’s technical assistance program webcast on furthering your local government’s energy efficiency goals. This is part one, gaining support from local leaders.

  13. Hugh Rudnick California Crisis Influences

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    Hugh Rudnick California Crisis Influences Further Reforms in Latin America The electric energy in 1994, and the Central American countries in 1997. Brazil also joined the group, and Venezuela, Mexico, education and health, creating competitive energy mar- kets to incorporate the private sector was seen

  14. NOvA Experiment - The Local Community

    ScienceCinema (OSTI)

    Deb Wieber

    2010-01-08

    Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

  15. Spotlight on Rutland County, Vermont: How Local Ties Lead to...

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

    Rutland County, Vermont: How Local Ties Lead to Local Wins Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins Spotlight on Rutland County, Vermont: How Local...

  16. Data-centric Transformations for Locality Enhancement

    E-Print Network [OSTI]

    Pingali, Keshav K.

    -centric transformations for locality enhancement. We present experimental results on the SGI Octane compar- ingData-centric Transformations for Locality Enhancement Induprakas Kodukula Keshav Pingali September community has developed locality-enhancing program transformations such as loop permutation and tiling

  17. Exploiting Locality of Churn for FIB Aggregation

    E-Print Network [OSTI]

    Schmid, Stefan

    Exploiting Locality of Churn for FIB Aggregation Nadi Sarrar Marcin Bienkowski Stefan Schmid Steve of London TU Berlin Technical Report: 2012-12 ISSN: 1436-9915 #12;Exploiting Locality of Churn for FIB effectively exploit the locality of FIB churn to keep low the number of updates to the aggregated FIB, as most

  18. Local Constructive Set Theory and Inductive Definitions

    E-Print Network [OSTI]

    Aczel, Peter

    Local Constructive Set Theory and Inductive Definitions Peter Aczel 1 Introduction Local Constructive Set Theory (LCST) is intended to be a local version of con- structive set theory (CST principles, is also acceptable in topos mathematics, the mathematics that can be carried out in an arbi

  19. California's Transition To Local Renewable Energy

    E-Print Network [OSTI]

    Kammen, Daniel M.

    California's Transition To Local Renewable Energy: 12,000 Megawatts By 2020 A Report on the Governor's Conference on Local Renewable Energy June 7, 2012 #12;This report was made possible. #12;California's Transition To Local Renewable Energy: 12,000 Megawatts By 2020 A Report

  20. environmental health The Local Board of Health

    E-Print Network [OSTI]

    environmental health The Local Board of Health Environmental Health Primer Second Edition #12;The Local Board of Health Environmental Health Primer Second Edition Author Carrie Hribar, MA Project Director ­ Public Health Policy National Association of Local Boards of Health Editor Mark Schultz, MEd

  1. Perturbative treatment of inter-site couplings in the local description of open quantum networks

    E-Print Network [OSTI]

    A. S. Trushechkin; I. V. Volovich

    2015-09-18

    The problem of construction of a quantum master equation for a system of sites weakly coupled to each other and to one or more reservoirs (open quantum network) is considered. Microscopic derivation of a quantum master equation requires a diagonalization of the Hamiltonian of the network, which can be a difficult task. When the inter-site couplings are weak, the local approach, which neglects the influence of the inter-site couplings on the system-reservoir couplings, is often used. Recently, some doubts were cast to the consistency of the local approach. We develop a systematic perturbation expansion to derive corrections to the local approach and establish its range of validity. Using this extension of the local approach, we derive an expression for the heat flux for a particular model and show that it does not violate the second law of thermodynamics.

  2. Localization of quantum Bernoulli noises

    SciTech Connect (OSTI)

    Wang, Caishi; Zhang, Jihong [School of Mathematics and Statistics, Northwest Normal University, Lanzhou, Gansu 730070 (China)] [School of Mathematics and Statistics, Northwest Normal University, Lanzhou, Gansu 730070 (China)

    2013-10-15

    The family (?{sub k},?{sub k}{sup *}){sub k?0} of annihilation and creation operators acting on square integrable functionals of a Bernoulli process Z= (Z{sub k}){sub k?0} can be interpreted as quantum Bernoulli noises. In this note we consider the operator family (?{sub k},?{sub k}{sup *}){sub k?0}, where ?{sub k}=?{sub k}E{sub k} with E{sub k} being the conditional expectation (operator) given ?-field ?(Z{sub j}; 0 ?j?k). We show that ?{sub k} (resp. ?{sub k}{sup *}) is essentially a kind of localization of the annihilation operator ?{sub k} (resp. creation operator ?{sub k}{sup *}). We examine properties of the family (?{sub k},?{sub k}{sup *}){sub k?0} and prove, among other things, that ?{sub k} and ?{sub k}{sup *} satisfy a local canonical anti-communication relation and (?{sub k}{sup *}){sub k?0} forms a mutually orthogonal operator sequence although each ?{sub k} is not a projection operator. We find that the operator series ?{sub k=0}{sup ?}?{sub k}{sup *}X?{sub k} converges in the strong operator topology for each bounded operator X acting on square integrable functionals of Z. In particular we get an explicit sum of the operator series ?{sub k=0}{sup ?}?{sub k}{sup *}?{sub k}. A useful norm estimate on ?{sub k=0}{sup ?}?{sub k}{sup *}X?{sub k} is also obtained. Finally we show applications of our main results to quantum dynamical semigroups and quantum probability.

  3. Dynamic Representations and Escaping Local Optima: Improving Genetic Algorithms and Local Search

    E-Print Network [OSTI]

    Whitley, Darrell

    'escape' local optima by accepting non- improving moves. Another possibility is to dynamically changeDynamic Representations and Escaping Local Optima: Improving Genetic Algorithms and Local Search University Fort Collins, CO 80523 e-mail: {laura,watsonj,whitley}@cs.colostate.edu Abstract Local search

  4. Spatial Risk Measures and their Local Specification: The Locally Law-Invariant Case

    E-Print Network [OSTI]

    Föllmer, Hans

    the position acceptable from the point of view of a supervising agency. Typically, such a local risk assessmentSpatial Risk Measures and their Local Specification: The Locally Law- Invariant Case by Hans F in Statistical Mechanics, we discuss the local specification of a global risk measure in terms of conditional

  5. Electron localization of anions probed by nitrile vibrations

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

    Mani, Tomoyasu; Grills, David C.; Newton, Marshall D.; Miller, John R.

    2015-08-02

    Localization and delocalization of electrons is a key concept in chemistry, and is one of the important factors determining the efficiency of electron transport through organic conjugated molecules, which have potential to act as “molecular wires”. This, in turn, substantially influences the efficiencies of organic solar cells and other molecular electronic devices. It is also necessary to understand the electronic energy landscape and the dynamics of electrons through molecular chain that govern their transport capabilities in one-dimensional conjugated chains so that we can better define the design principles of conjugated molecules for their applications. We show that nitrile ?(C?N) vibrationsmore »respond to the degree of electron localization in nitrile-substituted organic anions by utilizing time-resolved infrared (TRIR) detection combined with pulse radiolysis. Measurements of a series of aryl nitrile anions allow us to construct a semi-empirical calibration curve between the changes in the ?(C?N) IR shifts and the changes in the electronic charges from the neutral to the anion states in the nitriles; more electron localization in the nitrile anion results in larger IR shifts. Furthermore, the IR linewidth in anions can report a structural change accompanying changes in the electronic density distribution. Probing the shift of the nitrile ?(C?N) IR vibrational bands enables us to determine how the electron is localized in anions of nitrile-functionalized oligofluorenes, considered as organic mixed-valence compounds. We estimate the diabatic electron transfer distance, electronic coupling strengths, and energy barriers in these organic mixed-valence compounds. The analysis reveals a dynamic picture, showing that the electron is moving back and forth within the oligomers with a small activation energy of ? kBT, likely controlled by the movement of dihedral angles between monomer units. Thus, implications for the electron transport capability in "molecular wires" are discussed.« less

  6. Tarski's influence on computer science

    E-Print Network [OSTI]

    Solomon Feferman

    2006-09-27

    The influence of Alfred Tarski on computer science was indirect but significant in a number of directions and was in certain respects fundamental. Here surveyed is the work of Tarski on the decision procedure for algebra and geometry, the method of elimination of quantifiers, the semantics of formal languages, modeltheoretic preservation theorems, and algebraic logic; various connections of each with computer science are taken up.

  7. Weatherization assistance for low-income households: An evaluation of local program performance

    SciTech Connect (OSTI)

    Schweitzer, M.; Rayner, S.; Wolfe, A.K.; Mason, T.W.; Ragins, B.R.; Cartor, R.A.

    1987-08-01

    The US Department of Energy's Weatherization Assistance Program (WAP) funds local agencies to provide weatherization services to low-income households. This report describes the most salient features of this program, examines relationships between organization and program outcomes, and presents recommendations for the program's further development. Data were collected by written surveys administered to local weatherization agencies, a telephone survey of 38 states and eight DOE support offices, and site visits to selected local agencies. Locally controlled factors found to be significantly related to program performance include the amount of the weatherization director's time spent on program administration, the use of established client selection criteria, the frequency of evaluation of local goal attainment, and the type of weatherization crews used. Factors controlled at the state or federal levels that influence program performance include delays in state reimbursements of local agency expenditures and local flexibility in the choice of weatherization measures. Data-gathering difficulties experienced during this project indicate a need for possible improvements in goal-setting and record-keeping procedures.

  8. Atmos. Chem. Phys., 6, 12491265, 2006 www.atmos-chem-phys.net/6/1249/2006/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    . This work is licensed under a Creative Commons License. Atmospheric Chemistry and Physics Distinct wind convergence patterns in the Mexico City basin due to the interaction of the gap winds with the synoptic flow B influenced by local winds. The combination of high terrain with weak synop- tic forcing leads to weak

  9. Local Varying-Alpha Theories

    E-Print Network [OSTI]

    John D. Barrow; Joao Magueijo

    2015-01-30

    In a recent paper we demonstrated how the simplest model for varying alpha may be interpreted as the effect of a dielectric material, generalized to be consistent with Lorentz invariance. Unlike normal dielectrics, such a medium cannot change the speed of light, and its dynamics obey a Klein-Gordon equation. This work immediately suggests an extension of the standard theory, even if we require compliance with Lorentz invariance. Instead of a wave equation, the dynamics may satisfy a local algebraic relation involving the permittivity and the properties of the electromagnetic field, in analogy with more conventional dielectric (but still preserving Lorentz invariance). We develop the formalism for such theories and investigate some phenomenological implications. The problem of the divergence of the classical self-energy can be solved, or at least softened, in this framework. Some interesting new cosmological solutions for the very early universe are found, including the possibility of a bounce, inflation and expansion with a loitering phase, all of which are induced by early variations in alpha.

  10. State and Local Code Implementation: Southwest Region - 2014...

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

    and Local Code Implementation: Southeast Region - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review State and Local Code...

  11. 2, 605637, 2005 Influence of solar

    E-Print Network [OSTI]

    Boyer, Edmond

    HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al Sciences Discussions Influence of solar activity on hydrological processes J. P´erez-Peraza 1 , A. Leyva;HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al

  12. Journal influence factors6 Massimo Franceschet

    E-Print Network [OSTI]

    Franceschet, Massimo

    Journal influence factors6 Massimo Franceschet Department of Mathematics and Computer Science of journal influence, namely 2- year impact factor, 5-year impact factor, eigenfactor and article influence. These indicators have been recently added by Thomson Reuters to the Journal Citation Reports, in both science

  13. Anderson localization and Brewster anomalies in photonic disordered quasiperiodic lattices

    SciTech Connect (OSTI)

    Reyes-Gomez, E.; Bruno-Alfonso, A.; Cavalcanti, S. B.; Oliveira, L. E.

    2011-09-15

    A comprehensive study of the properties of light propagation through one-dimensional photonic disordered quasiperiodic superlattices, composed of alternating layers with random thicknesses of air and a dispersive metamaterial, is theoretically performed. The superlattices consist of the successive stacking of N quasiperiodic Fibonacci or Thue-Morse heterostructures. The width of the slabs in the photonic superlattice may randomly fluctuate around its mean value, which introduces a structural disorder into the system. It is assumed that the left-handed layers have a Drude-type dispersive response for both the dielectric permittivity and magnetic permeability, and Maxwell's equations are solved for oblique incidence by using the transfer-matrix formalism. The influence of both quasiperiodicity and structural disorder on the localization length and Brewster anomalies are thoroughly discussed.

  14. Local Energy Velocity of Classical Fields

    E-Print Network [OSTI]

    I. V. Drozdov; A. A. Stahlhofen

    2007-04-19

    It is proposed to apply a recently developed concept of local wave velocities to the dynamical field characteristics, especially for the canonical field energy density. It is shown that local energy velocities can be derived from the lagrangian directly. The local velocities of zero- and first- order for energy propagation has been obtained for special cases of scalar and vector fields. Some important special cases of these results are discussed.

  15. Fully localized two-dimensional embedded solitons

    SciTech Connect (OSTI)

    Yang Jianke [Department of Mathematics and Statistics, University of Vermont, Burlington, Vermont 05401 (United States)

    2010-11-15

    We report the prediction of fully localized two-dimensional embedded solitons. These solitons are obtained in a quasi-one-dimensional waveguide array which is periodic along one spatial direction and localized along the orthogonal direction. Under appropriate nonlinearity, these solitons are found to exist inside the Bloch bands (continuous spectrum) of the waveguide and thus are embedded solitons. These embedded solitons are fully localized along both spatial directions. In addition, they are fully stable under perturbations.

  16. Model Wind Ordinance for Local Governments

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2006, Pennsylvania developed a model local ordinance for wind energy facilities through a collaborative effort involving several state departments and stakeholder groups. The purpose of the...

  17. ARITHMETIC QUANTUM CHAOS ON LOCALLY SYMMETRIC SPACES

    E-Print Network [OSTI]

    Silberman, Lior

    ARITHMETIC QUANTUM CHAOS ON LOCALLY SYMMETRIC SPACES LIOR SILBERMAN A DISSERTATION PRESENTED Lindenstrauss on the arithmetic quantum chaos problem on hyperbolic surfaces. We have also benefited from

  18. Communication vs. Performance in Source Localization

    E-Print Network [OSTI]

    Bandari, Roja; Pottie, Gregory

    2007-01-01

    localization. Cost of Wireless Communication Energy can be aConsiderable energy is used in wireless communication In aamount of energy is consumed through wireless communication.

  19. LECTURES ON LOCAL COHOMOLOGY AND DUALITY Contents ...

    E-Print Network [OSTI]

    2007-12-28

    Introduction. This is an expanded version of a series of lectures given during the Local. Cohomology workshop at CIMAT, Guanajuoto, Mexico, Nov. 29–Dec. 3,.

  20. Localized Induction Equation for Stretched Vortex Filament

    E-Print Network [OSTI]

    Kimiaki Konno; Hiroshi Kakuhata

    2006-03-02

    We study numerically the motion of the stretched vortex filaments by using the localized induction equation with the stretch and that without the stretch.

  1. Derived Hom-Tensor adjointness. Local duality.

    E-Print Network [OSTI]

    2009-02-07

    Lectures on Grothendieck Duality. II: Derived Hom-Tensor adjointness. Local duality. Joseph Lipman. February 16, 2009. Contents. 1 Left-derived functors.

  2. LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D-MODULES

    E-Print Network [OSTI]

    Bloch, Spencer

    LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D. Local Fourier transforms, analogous to the `-adic local Fourier transforms [14], are constructed infinitesimal rigidity condition is satisfied. As in [12], the argument uses local Fourier transforms

  3. LOCAL ORGANIC FOOD: THE SOCIAL IMPLICATIONS OF

    E-Print Network [OSTI]

    Bateman, Ian J.

    Sustainable production and consumption has risen up the political agenda over the last ten years, to becomeLOCAL ORGANIC FOOD: THE SOCIAL IMPLICATIONS OF SUSTAINABLE CONSUMPTION By Gill Seyfang CSERGE Working Paper EDM 04-09 #12;Local Organic Food: The Social Implications of Sustainable Consumption By Gill

  4. Localization of Classical Waves I: Acoustic Waves.

    E-Print Network [OSTI]

    Localization of Classical Waves I: Acoustic Waves. Alexander Figotin \\Lambda Department, 1997 Abstract We consider classical acoustic waves in a medium described by a position dependent mass the existence of localized waves, i.e., finite energy solutions of the acoustic equations with the property

  5. Biomass for energy and materials Local technologies -

    E-Print Network [OSTI]

    - holds Industry Agricult. Pretreatment of biomass and waste CO2 Gasification Combustion MicrobialBiomass for energy and materials Local technologies - in a global perspective Erik Steen Jensen Bioenergy and biomass Biosystems Department Risø National Laboratory Denmark #12;Biomass - a local resource

  6. Localization of fremions in rotating electromagnetic fields

    E-Print Network [OSTI]

    B. V. Gisin

    2015-06-15

    Parameters of localization are defined in the lab and rotating frame for solutions of the Dirac equation in the field of a traveling circularly polarized electromagnetic wave and constant magnetic field. The radius of localization is of the order of the electromagnetic wavelength and lesser.

  7. DAMAGE LOCALIZATION USING LOAD VECTORS Dionisio Bernal

    E-Print Network [OSTI]

    Bernal, Dionisio

    DAMAGE LOCALIZATION USING LOAD VECTORS Dionisio Bernal Associate Professor Department of Civil: A technique to localize damage in structures that can be treated as linear in the pre and post-damage state is presented. Central to the approach is the computation of a set of vectors, designated as Damage Locating

  8. Structural Damage Detection and Localization Using NETSHM

    E-Print Network [OSTI]

    Gnawali, Omprakash

    Structural Damage Detection and Localization Using NETSHM Krishna Chintalapudi, Jeongyeup Paek and localize damage in large civil structures. Structural engineers often implement and test SHM algorithms the intricacies of wireless networking, or the details of sensor data acquisition. We have implemented a damage

  9. Local Export Spillovers in France Pamina Koenig

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Local Export Spillovers in France Pamina Koenig Florian Mayneris Sandra Poncet§ Abstract This paper investigates the presence of local export spillovers on both the extensive (the decision to start exporting) and the intensive (the export volume) margins of trade, using data on French individual export flows, at the product

  10. Book Reviews Local Constraints vs. Economy

    E-Print Network [OSTI]

    Book Reviews Local Constraints vs. Economy David E. Johnson and Shalom Lappin (IBM Thomas J. Watson, the authors summarize the Chomsky 1995 version of global economy in Chapter 2. In Chapter 3, they discuss two versions of local economy, that proposed by Collins (1997) and the one developed by Yang (1997

  11. Contributed Paper Biodiversity Conservation in Local Planning

    E-Print Network [OSTI]

    Miller, James R.

    , urbanization, Washington Conservaci´on de la Biodiversidad en la Planificaci´on Local Resumen: Las pol biodiversidad en los Estados Unidos. Muchos planificadores y cient´ificos de la conservaci´on han hecho un´on de la biodiversidad a escalas locales. Pero, se conoce poco sobre la generalidad de estas pr

  12. Range-Free Localization Radu Stoleru1

    E-Print Network [OSTI]

    Stankovic, John A.

    in wireless sensor networks (WSN). WSN are formed by large numbers of densely deployed nodes enabled is the process of determining the coordinates of the sensor nodes in the WSN. Target localization is the process problem in WSN. Node localization is a complicated and important problem for wireless sensor networks (WSN

  13. Climate Change Adaptation for Local Government

    E-Print Network [OSTI]

    Pedersen, Tom

    Climate Change Adaptation for Local Government A Resource Guide June 2011 Jenny Fraser, Adaptation Specialist, Climate Action Secretariat, BC Ministry of Environment & Matthew Strand, Researcher, Adaptation to Climate Change Team, Simon Fraser University #12;Page 1 of 26 Climate Change Adaptation for Local

  14. Global-local Structural Optimization Using Response Surfaces of Local Optimization Margins

    E-Print Network [OSTI]

    Neumaier, Arnold

    1 Global-local Structural Optimization Using Response Surfaces of Local Optimization Margins Boyang optimization problems. First, a large number of component optimizations for maximization of margins are performed. Response surface approximations (RSA) for maximum margins of component optimization

  15. Localities and their natural gas : stories of problem diffusion, state preemption, and local government capacity

    E-Print Network [OSTI]

    Agatstein, Jessica C

    2013-01-01

    The rapid rise of oil and gas production in the United States poses a new set of policy challenges for local governments. Striving to balance the goals of encouraging economic growth and mitigating its side effects, local ...

  16. Furthering Your Local Governments' Energy Efficiency Goals-- Part 1- Getting Support From Local Leaders

    Broader source: Energy.gov [DOE]

    An overview of some of the best practices for gaining support for energy efficiency projects from your local leaders , key data points and other items of interest that local leaders might look for when approached about supporting energy efficiency projects..

  17. Transverse Anderson localization of light near Dirac points of photonic nanostructures

    E-Print Network [OSTI]

    Deng, Hanying; Malomed, Boris A; Panoiu, Nicolae C; Ye, Fangwei

    2015-01-01

    We perform a comparative study of the Anderson localization of light beams in disordered layered photonic nanostructures that, in the limit of periodic layer distribution, possess either a Dirac point or a Bragg gap in the spectrum of the wavevectors. In particular, we demonstrate that the localization length of the Anderson modes increases when the width of the Bragg gap decreases, such that in the vanishingly small bandgap limit, namely when a Dirac point is formed, even extremely high levels of disorders are unable to localize the optical modes located near the Dirac point. A comparative analysis of the key features of the propagation of Anderson modes formed in the Bragg gap or near the Dirac point is also presented. Our findings could provide valuable guidelines in assessing the influence of structural disorder on the functionality of a broad array of optical nanodevices.

  18. Bladder Preservation for Localized Muscle-Invasive Bladder Cancer: The Survival Impact of Local Utilization Rates of Definitive Radiotherapy

    SciTech Connect (OSTI)

    Kozak, Kevin R.; Hamidi, Maryam [Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin (United States); Manning, Matthew [Division of Radiation Oncology, Moses Cone Regional Cancer Center, Greensboro, North Carolina (United States); Moody, John S., E-mail: john.moody@mosescone.com [Division of Radiation Oncology, Moses Cone Regional Cancer Center, Greensboro, North Carolina (United States)

    2012-06-01

    Purpose: This study examines the management and outcomes of muscle-invasive bladder cancer in the United States. Methods and Materials: Patients with muscle-invasive bladder cancer diagnosed between 1988 and 2006 were identified in the Surveillance, Epidemiology, and End Results (SEER) database. Patients were classified according to three mutually exclusive treatment categories based on the primary initial treatment: no local management, radiotherapy, or surgery. Overall survival was assessed with Kaplan-Meier analysis and Cox models based on multiple factors including treatment utilization patterns. Results: The study population consisted of 26,851 patients. Age, sex, race, tumor grade, histology, and geographic location were associated with differences in treatment (all p < 0.01). Patients receiving definitive radiotherapy tended to be older and have less differentiated tumors than patients undergoing surgery (RT, median age 78 years old and 90.6% grade 3/4 tumors; surgery, median age 71 years old and 77.1% grade 3/4 tumors). No large shifts in treatment were seen over time, with most patients managed with surgical resection (86.3% for overall study population). Significant survival differences were observed according to initial treatment: median survival, 14 months with no definitive local treatment; 17 months with radiotherapy; and 43 months for surgery. On multivariate analysis, differences in local utilization rates of definitive radiotherapy did not demonstrate a significant effect on overall survival (hazard ratio, 1.002; 95% confidence interval, 0.999-1.005). Conclusions: Multiple factors influence the initial treatment strategy for muscle-invasive bladder cancer, but definitive radiotherapy continues to be used infrequently. Although patients who undergo surgery fare better, a multivariable model that accounted for patient and tumor characteristics found no survival detriment to the utilization of definitive radiotherapy. These results support continued research into bladder preservation strategies and suggest that definitive radiotherapy represents a viable initial treatment strategy for those who wish to attempt to preserve their native bladder.

  19. The influence of land-use composition on fecal contamination of riverine source water in southern British Columbia

    E-Print Network [OSTI]

    Mazumder, Asit

    The influence of land-use composition on fecal contamination of riverine source water in southern to become contaminated with pathogens is related to the production and transport of fecal waste from within the local catchment area. Identifying specific relationships between land-use types and fecal contamination

  20. Deconfinement to quark matter in neutron stars - The influence of strong magnetic fields

    SciTech Connect (OSTI)

    Dexheimer, V.; Negreiros, R.; Schramm, S.; Hempel, M.

    2013-03-25

    We use an extended version of the hadronic SU(3) non-linear realization of the sigma model that also includes quarks to study hybrid stars. Within this approach, the degrees of freedom change naturally as the temperature/density increases. Different prescriptions of charge neutrality, local and global, are tested and the influence of strong magnetic fields and the anomalous magnetic moment on the particle population is discussed.

  1. The Influence of Non-state Actors on International Environmental Policy 

    E-Print Network [OSTI]

    Hay, Zowie Natasha

    2012-02-14

    . 1994, Auer 2000), and yet the consequences of these actions can spill across the boundaries of the nation-state. Conversely, international environmental policy is formed at the global level, but often requires implementation at the local level... by which this influence may operate. In addition, the majority of this work is restricted to case studies of US environmental policy, making it difficult to draw conclusions about the importance of ENGOs outside of this specific political context. 14...

  2. Local Option- County Energy District Authority

    Broader source: Energy.gov [DOE]

    Oklahoma enacted S.B. 102, effective November 2011, to make PACE loans junior and inferior to other liens. This law should allow local governments to adopt PACE programs that are within the accep...

  3. Essays on Banking and Local Credit Markets

    E-Print Network [OSTI]

    Nguyen, Hoai-Luu

    2015-01-01

    This thesis consists of three chapters on banking and local credit markets. The first chapter studies the relationship between bank-specific capital and credit access in a new setting: bank branch closings in markets where ...

  4. A Library for Locally Weighted Projection Regression 

    E-Print Network [OSTI]

    Klanke, Stefan; Vijayakumar, Sethu; Schaal, Stefan

    2008-01-01

    In this paper we introduce an improved implementation of locally weighted projection regression (LWPR), a supervised learning algorithm that is capable of handling high-dimensional input data. As the key features, our ...

  5. Agenda: State, Local and Tribal Issues

    Broader source: Energy.gov [DOE]

    Many of the primary authorities and governance structures that exist for states, localities and tribes related to electricity infrastructure have been in place for decades. What can be learned from...

  6. Developmental Plasticity Links Local Adaptation and Evolutionary

    E-Print Network [OSTI]

    Badyaev, Alex

    Developmental Plasticity Links Local Adaptation and Evolutionary Diversification in Foraging, University of Arizona, Tucson, Arizona Developmental plasticity is thought to reconcile the constraining role morphology into adulthood, providing an opportunity to directly examine the links between plasticity of bone

  7. Local Option- Property Assessed Clean Energy Financing

    Broader source: Energy.gov [DOE]

    Property-Assessed Clean Energy (PACE) financing effectively allows property owners to borrow money from the local government to pay for energy improvements. The amount borrowed is typically repai...

  8. Cooperative localization for autonomous underwater vehicles

    E-Print Network [OSTI]

    Bahr, Alexander

    2009-01-01

    Self-localization of an underwater vehicle is particularly challenging due to the absence of Global Positioning System (GPS) reception or features at known positions that could otherwise have been used for position ...

  9. Local community extraction in directed networks

    E-Print Network [OSTI]

    Ning, Xuemei; Zhang, Shihua

    2015-01-01

    Network is a simple but powerful representation of real-world complex systems. Network community analysis has become an invaluable tool to explore and reveal the internal organization of nodes. However, only a few methods were directly designed for community-detection in directed networks. In this article, we introduce the concept of local community structure in directed networks and provide a generic criterion to describe a local community with two properties. We further propose a stochastic optimization algorithm to rapidly detect a local community, which allows for uncovering the directional modular characteristics in directed networks. Numerical results show that the proposed method can resolve detailed local communities with directional information and provide more structural characteristics of directed networks than previous methods.

  10. Interferometric hydrofracture microseism localization using neighboring fracture

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    2011-05-19

    Hydraulic fracturing is the process of injecting high-pressure fluids into a reservoir to induce fractures and thus improve reservoir productivity. Microseismic event localization is used to locate created fractures. ...

  11. Locally-smeared operator product expansions

    SciTech Connect (OSTI)

    Monahan, Christopher; Orginos, Kostantinos

    2014-12-01

    We propose a "locally-smeared Operator Product Expansion" (sOPE) to decompose non-local operators in terms of a basis of locally-smeared operators. The sOPE formally connects nonperturbative matrix elements of smeared degrees of freedom, determined numerically using the gradient flow, to non-local operators in the continuum. The nonperturbative matrix elements do not suffer from power-divergent mixing on the lattice, provided the smearing scale is kept fixed in the continuum limit. The presence of this smearing scale prevents a simple connection to the standard operator product expansion and therefore requires the construction of a two-scale formalism. We demonstrate the feasibility of our approach using the example of real scalar field theory.

  12. Emerging local warming signals in observational data

    E-Print Network [OSTI]

    Mahlstein, Irina

    The global average temperature of the Earth has increased, but year-to-year variability in local climates impedes the identification of clear changes in observations and human experience. For a signal to become obvious in ...

  13. Force localization in contracting cell layers

    E-Print Network [OSTI]

    Carina M. Edwards; Ulrich S. Schwarz

    2012-01-13

    Epithelial cell layers on soft elastic substrates or pillar arrays are commonly used as model systems for investigating the role of force in tissue growth, maintenance and repair. Here we show analytically that the experimentally observed localization of traction forces to the periphery of the cell layers does not necessarily imply increased local cell activity, but follows naturally from the elastic problem of a finite-sized contractile layer coupled to an elastic foundation. For homogeneous contractility, the force localization is determined by one dimensionless parameter interpolating between linear and exponential force profiles for the extreme cases of very soft and very stiff substrates, respectively. If contractility is sufficiently increased at the periphery, outward directed displacements can occur at intermediate positions, although the edge itself still retracts. We also show that anisotropic extracellular stiffness leads to force localization in the stiffer direction, as observed experimentally.

  14. Interferometric hydrofracture microseism localization using neighboring fracture

    E-Print Network [OSTI]

    Poliannikov, Oleg V.

    Hydraulic fracturing is the process of injecting high-pressure fluids into a reservoir to induce fractures and thus improve reservoir productivity. Microseismic event localization is used to locate created fractures. ...

  15. Local Option- Rural Renewable Energy Development Zones

    Office of Energy Efficiency and Renewable Energy (EERE)

    Commercial renewable energy property in these zones are eligible for a 3 to 5 year local property tax exemption. Eligible property includes either wind, geothermal, solar, biomass, or other uncon...

  16. Internet Exchanges: Enabling Local Online Communities

    E-Print Network [OSTI]

    Mitchell, Keith

    Interconnect Principles Internet Exchange History Internet Exchange Models Internet Exchange Security Setting, Foundry #12;Internet Exchanges History #12;A decade+ of Internet Exchanges The London Internet ExchangeInternet Exchanges: Enabling Local Online Communities Keith Mitchell Chair, United Kingdom Network

  17. Anderson localization of partially incoherent light

    SciTech Connect (OSTI)

    Capeta, D.; Radic, J.; Buljan, H.; Szameit, A.; Segev, M.

    2011-07-15

    We study Anderson localization and propagation of partially spatially incoherent wavepackets in linear disordered potentials, motivated by the insight that interference phenomena resulting from multiple scattering are affected by the coherence of the waves. We find that localization is delayed by incoherence: the more incoherent the waves are, the longer they diffusively spread while propagating in the medium. However, if all the eigenmodes of the system are exponentially localized (as in one- and two-dimensional disordered systems), any partially incoherent wavepacket eventually exhibits localization with exponentially decaying tails, after sufficiently long propagation distances. Interestingly, we find that the asymptotic behavior of the incoherent beam is similar to that of a single instantaneous coherent realization of the beam.

  18. EERE's State & Local Energy Data Tool

    ScienceCinema (OSTI)

    Shambarger, Erick; DeCesaro, Jennifer

    2014-06-26

    EERE's State and Local Energy Data (SLED) Tool provides basic energy market information that can help state and local governments plan and implement clean energy projects, including electricity generation; fuel sources and costs; applicable policies, regulations, and financial incentives; and renewable energy resource potential. Watch this video to learn more about the tool and hear testimonials from real users about the benefits of using this tool.

  19. Entanglement quantification by local unitary operations

    SciTech Connect (OSTI)

    Monras, A.; Giampaolo, S. M.; Gualdi, G.; Illuminati, F.; Adesso, G.; Davies, G. B.

    2011-07-15

    Invariance under local unitary operations is a fundamental property that must be obeyed by every proper measure of quantum entanglement. However, this is not the only aspect of entanglement theory where local unitary operations play a relevant role. In the present work we show that the application of suitable local unitary operations defines a family of bipartite entanglement monotones, collectively referred to as ''mirror entanglement.'' They are constructed by first considering the (squared) Hilbert-Schmidt distance of the state from the set of states obtained by applying to it a given local unitary operator. To the action of each different local unitary operator there corresponds a different distance. We then minimize these distances over the sets of local unitary operations with different spectra, obtaining an entire family of different entanglement monotones. We show that these mirror-entanglement monotones are organized in a hierarchical structure, and we establish the conditions that need to be imposed on the spectrum of a local unitary operator for the associated mirror entanglement to be faithful, i.e., to vanish in and only in separable pure states. We analyze in detail the properties of one particularly relevant member of the family, the ''stellar mirror entanglement'' associated with the traceless local unitary operations with nondegenerate spectra and equispaced eigenvalues in the complex plane. This particular measure generalizes the original analysis of S. M. Giampaolo and F. Illuminati [Phys. Rev. A 76, 042301 (2007)], valid for qubits and qutrits. We prove that the stellar entanglement is a faithful bipartite entanglement monotone in any dimension and that it is bounded from below by a function proportional to the linear entropy and from above by the linear entropy itself, coinciding with it in two- and three-dimensional spaces.

  20. Targeting Illegal Immigration: Local Ordinate Action 

    E-Print Network [OSTI]

    Gunn, Emily; Moffitt, Jessica; Montemayor, Victoria; Riedel, Sarah; Smith, Bart; Weizel, Daniel

    2008-01-01

    to prevent unauthorized immigration. However, from 1990 to 2005, estimates of the unauthorized alien population in the United States have risen from 3.5 million to 11.5 million people, a 325 percent increase. A small number of localities have taken action... to unauthorized aliens, while others passed legislation targeting day labor centers, loitering, and government services. Consistent with findings made in other studies,1 at the time of our study we found that only approximately 100 localities have...

  1. EERE's State & Local Energy Data Tool

    SciTech Connect (OSTI)

    Shambarger, Erick; DeCesaro, Jennifer

    2014-06-23

    EERE's State and Local Energy Data (SLED) Tool provides basic energy market information that can help state and local governments plan and implement clean energy projects, including electricity generation; fuel sources and costs; applicable policies, regulations, and financial incentives; and renewable energy resource potential. Watch this video to learn more about the tool and hear testimonials from real users about the benefits of using this tool.

  2. p-ADIC ARAKELOV THEORY: LOCAL THEORY

    E-Print Network [OSTI]

    " on the completions above p. In this part of the paper we only deal with the local theory, i.e., above p. This really, on a complete curve over a p-adic #12;eld. The goal of the local theory is to describe an extension of this pairing, by giving a Green function G(P; Q) with certain desirable properties, in such a way that (1.1) DX

  3. States and Local Communities | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center HomeVehicle ReplacementStates and Local Communities States and Local

  4. Influence network in Chinese stock market

    E-Print Network [OSTI]

    Gao, Ya-Chun; Cai, Shi-Min

    2015-01-01

    In a stock market, the price fluctuations are interactive, that is, one listed company can influence others. In this paper, we seek to study the influence relationships among listed companies by constructing a directed network on the basis of Chinese stock market. This influence network shows distinct topological properties, particularly, a few large companies that can lead the tendency of stock market are recognized. Furthermore, by analyzing the subnetworks of listed companies distributed in several significant economic sectors, it is found that the influence relationships are totally different from one economic sector to another, of which three types of connectivity as well as hub-like listed companies are identified. In addition, the rankings of listed companies obtained from the centrality metrics of influence network are compared with that according to the assets, which gives inspiration to uncover and understand the importance of listed companies in the stock market. These empirical results are meaning...

  5. Landscape influences on headwater streams on Fort Stewart, Georgia, USA

    SciTech Connect (OSTI)

    Jager, Yetta [ORNL; Bevelhimer, Mark S [ORNL; al., et. [Various Institutes

    2011-01-01

    Military landscapes represent a mixture of undisturbed natural ecosystems, developed areas, and lands that support different types and intensities of military training. Research to understand water-quality influences of military landscapes usually involves intensive sampling in a few watersheds. In this study, we developed a survey design of accessible headwater watersheds intended to improve our ability to distinguish land water relationships in general, and training influences, in particular, on Fort Stewart, GA. We sampled and analyzed water from watershed outlets. We successfully developed correlative models for total suspended solids (TSS), total nitrogen (TN), organic carbon (OC), and organic nitrogen (ON), which dominated in this blackwater ecosystem. TSS tended to be greater in samples after rainfall and during the growing season, and models that included %Wetland suggested a build-and-flush relationship. We also detected a positive association between TSS and tank-training, which suggests a need to intercept sediment-laden runoff from training areas. Models for OC showed a negative association with %Grassland. TN and ON both showed negative associations with %Grassland, %Wetland, and %Forest. Unexpected positive associations were observed between OC and equipmenttraining activity and between ON and %Bare ground ? Roads. Future studies that combine our survey-based approach with more intensive monitoring of the timing and intensity of training would be needed to better understand the mechanisms for these empirical relationships involving military training. Looking beyond local effects on Fort Stewart streams, we explore questions about how exports of OC and nitrogen from coastal military installations ultimately influence estuaries downstream.

  6. Coherent and incoherent contributions to the carrier-envelope phase control of wave packet localization in quantum double wells

    SciTech Connect (OSTI)

    Hader, K.; Engel, V., E-mail: voen@phys-chemie.uni-wuerzburg.de [Institut für Physikalische und Theoretische Chemie, Emil-Fischer-Str. 42, Universität Würzburg, 97074 Würzburg (Germany)

    2014-05-14

    We study laser excitation processes in a double well potential. The possibility to influence localization via the carrier-envelope phase (CEP) of a laser pulse is investigated for various situations which differ in the nature of the initial state prior to the laser interactions. In more detail, the CEP-dependence of asymmetries in the case where initially the system is described by localized wave packets, eigenstates, or incoherent mixtures are calculated and interpreted within time-dependent perturbation theory. It is investigated which contributions to the asymmetry exist and how they can be modified to reveal a more or less pronounced CEP-effect.

  7. Relative localization of point particle interactions

    E-Print Network [OSTI]

    José Ricardo Oliveira

    2011-10-25

    We review the main concepts of the recently introduced principle of relative locality and investigate some aspects of classical interactions between point particles from this new perspective. We start with a physical motivation and basic mathematical description of relative locality and review the treatment of a system of classical point particles in this framework. We then examine one of the unsolved problems of this picture, the apparent ambiguities in the definition of momentum constraints caused by a non-commutative and/or non-associative momentum addition rule. The gamma ray burst experiment is used as an illustration. Finally, we use the formalism of relative locality to reinterpret the well-known multiple point particle system coupled to 2+1 Einstein gravity, analyzing the geometry of its phase space and once again referring to the gamma ray burst problem as an example.

  8. Secure positioning and non-local correlations

    E-Print Network [OSTI]

    Muhammad Nadeem

    2015-03-31

    Recently, the problem of secure position-verification has been extensively analyzed in a formal notion where distant verifiers send encrypted challenge along with the decryption information to the prover. However, currently it is known that all the existing position-verification scheme are insecure and secure positioning is impossible. We propose here a different notion for position-verification where distant verifiers determine the actions of the prover through non-local correlations generated by local measurements at the provers site. The proposed scheme guarantees secure positioning even if the verifiers do not have any pre-shared data with the prover, position is the only credential of the prover. Our proposed scheme is secure in general and evades known quantum attacks based on instantaneous non-local computations in particular. The scheme enables verifiers to identify dishonest provers with very high probability , where n is the number of entangled pairs used.

  9. Local magnitudes of small contained explosions.

    SciTech Connect (OSTI)

    Chael, Eric Paul

    2009-12-01

    The relationship between explosive yield and seismic magnitude has been extensively studied for underground nuclear tests larger than about 1 kt. For monitoring smaller tests over local ranges (within 200 km), we need to know whether the available formulas can be extrapolated to much lower yields. Here, we review published information on amplitude decay with distance, and on the seismic magnitudes of industrial blasts and refraction explosions in the western U. S. Next we measure the magnitudes of some similar shots in the northeast. We find that local magnitudes ML of small, contained explosions are reasonably consistent with the magnitude-yield formulas developed for nuclear tests. These results are useful for estimating the detection performance of proposed local seismic networks.

  10. Does chaos assist localization or delocalization?

    SciTech Connect (OSTI)

    Tan, Jintao; Luo, Yunrong; Hai, Wenhua, E-mail: whhai2005@aliyun.com [Department of Physics and Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha 410081 (China); Lu, Gengbiao [Department of Physics and Electronic Science, Changsha University of Science and Technology, Changsha 410004 (China)

    2014-12-01

    We aim at a long-standing contradiction between chaos-assisted tunneling and chaos-related localization study quantum transport of a single particle held in an amplitude-modulated and tilted optical lattice. We find some near-resonant regions crossing chaotic and regular regions in the parameter space, and demonstrate that chaos can heighten velocity of delocalization in the chaos-resonance overlapping regions, while chaos may aid localization in the other chaotic regions. The degree of localization enhances with increasing the distance between parameter points and near-resonant regions. The results could be useful for experimentally manipulating chaos-assisted transport of single particles in optical or solid-state lattices.

  11. An eigensystem approach to Anderson localization

    E-Print Network [OSTI]

    Alexander Elgart; Abel Klein

    2015-09-28

    We introduce a new approach for proving localization (pure point spectrum with exponentially decaying eigenfunctions, dynamical localization) for the Anderson model at high disorder. In contrast to the usual strategy, we do not study finite volume Green's functions. Instead, we perform a multiscale analysis based on finite volume eigensystems (eigenvalues and eigenfunctions). Information about eigensystems at a given scale is used to derive information about eigensystems at larger scales. This eigensystem multiscale analysis treats all energies of the finite volume operator at the same time, establishing level spacing and localization of eigenfunctions in a fixed box with high probability. A new feature is the labeling of the eigenvalues and eigenfunctions by the sites of the box.

  12. Holographic Trace Anomaly and Local Renormalization Group

    E-Print Network [OSTI]

    Rajagopal, Srivatsan; Zhu, Yechao

    2015-01-01

    The Hamilton-Jacobi method in holography has produced important results both at a renormalization group (RG) fixed point and away from it. In this paper we use the Hamilton-Jacobi method to compute the holographic trace anomaly for four- and six-dimensional boundary conformal field theories (CFTs), assuming higher-derivative gravity and interactions of scalar fields in the bulk. The scalar field contributions to the anomaly appear in CFTs with exactly marginal operators. Moving away from the fixed point, we show that the Hamilton-Jacobi formalism provides a deep connection between the holographic and the local RG. We derive the local RG equation holographically, and verify explicitly that it satisfies Weyl consistency conditions stemming from the commutativity of Weyl scalings. We also consider massive scalar fields in the bulk corresponding to boundary relevant operators, and comment on their effects to the local RG equation.

  13. Holographic Trace Anomaly and Local Renormalization Group

    E-Print Network [OSTI]

    Srivatsan Rajagopal; Andreas Stergiou; Yechao Zhu

    2015-08-19

    The Hamilton-Jacobi method in holography has produced important results both at a renormalization group (RG) fixed point and away from it. In this paper we use the Hamilton-Jacobi method to compute the holographic trace anomaly for four- and six-dimensional boundary conformal field theories (CFTs), assuming higher-derivative gravity and interactions of scalar fields in the bulk. The scalar field contributions to the anomaly appear in CFTs with exactly marginal operators. Moving away from the fixed point, we show that the Hamilton-Jacobi formalism provides a deep connection between the holographic and the local RG. We derive the local RG equation holographically, and verify explicitly that it satisfies Weyl consistency conditions stemming from the commutativity of Weyl scalings. We also consider massive scalar fields in the bulk corresponding to boundary relevant operators, and comment on their effects to the local RG equation.

  14. Local Groups Online: Political Learning and Participation

    E-Print Network [OSTI]

    Carroll, John M.

    Classification Keywords: H.5.3 Group and Organization interfaces, Collaborative computing 1. Introduction Human (Blau, 1977; Rogers, 1995). These commonalities may be as primary as family, kin and friends influencing policy through advocacy. At the group level of analysis, many groups combine instrumental

  15. Stabilization of the Vertical Mode in Tokamaks by Localized Nonaxisymm...

    Office of Scientific and Technical Information (OSTI)

    Mode in Tokamaks by Localized Nonaxisymmetric Fields Vertical instability of a tokamak plasma can be controlled by nonaxisymmetric magnetic fields localized near the plasma...

  16. Spatial localization of resistive drift wave structure in tokamak...

    Office of Scientific and Technical Information (OSTI)

    Spatial localization of resistive drift wave structure in tokamak edge plasmas with an embedded magnetic island Citation Details In-Document Search Title: Spatial localization of...

  17. Automating approximate Bayesian computation by local linear regression

    E-Print Network [OSTI]

    Thornton, Kevin R

    2009-01-01

    computation by local linear regression Kevin R Thorntonof ABC based on using a linear regression to approximate theimplements the local linear-regression approach to ABC. The

  18. Cellu-WHAT?-sic: Communicating the Biofuels Message to Local...

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

    Cellu-WHAT?-sic: Communicating the Biofuels Message to Local Stakeholders Cellu-WHAT?-sic: Communicating the Biofuels Message to Local Stakeholders Breakout Session 3D-Building...

  19. State and Local Energy Assurance Planning | Department of Energy

    Energy Savers [EERE]

    and local governments on energy assurance issues. The office develops products and tools to inform and educate State and local officials to support their energy emergency...

  20. How Much Do Local Regulations Matter? Exploring the Impact of...

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

    Regulations Matter? Exploring the Impact of Permitting and Local Regulatory Processes on PV Prices in the United States How Much Do Local Regulations Matter? Exploring the Impact...

  1. Measuring Up: How to Track and Evaluate Local Sustainability Projects

    Office of Energy Efficiency and Renewable Energy (EERE)

    Join this EPA Local Climate and Energy webinar to learn how to measure and evaluate the results of local climate, energy, and sustainability projects.

  2. Phonon localization drives nanoregions in a relaxor ferroelectric...

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

    localization drives nanoregions in a relaxor ferroelectric April 11, 2014 This inelastic neutron scattering spectrum shows the localizing modes (LMs) between the transverse optic...

  3. Obama Administration Announces Additional $13,969,700 for Local...

    Office of Environmental Management (EM)

    Additional 13,969,700 for Local Energy Efficiency Improvements in Alaska Obama Administration Announces Additional 13,969,700 for Local Energy Efficiency Improvements in Alaska...

  4. Energy Department Awards $5 Million to Spur Local Clean Energy...

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

    Awards 5 Million to Spur Local Clean Energy Development, Energy Savings Energy Department Awards 5 Million to Spur Local Clean Energy Development, Energy Savings October 14, 2014...

  5. Energy Department Announces $13 Million to Strengthen Local Solar...

    Office of Environmental Management (EM)

    3 Million to Strengthen Local Solar Markets and Spur Solar Deployment Across the United States Energy Department Announces 13 Million to Strengthen Local Solar Markets and Spur...

  6. Local Soot Loading Distribution in Cordierite Diesel Particulate...

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

    Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

  7. Treatment of Locally Advanced Adenoid Cystic Carcinoma of the...

    Office of Scientific and Technical Information (OSTI)

    Treatment of Locally Advanced Adenoid Cystic Carcinoma of the Trachea With Neutron Radiotherapy Citation Details In-Document Search Title: Treatment of Locally Advanced Adenoid...

  8. Solar Powering Your Community: A Guide for Local Governments...

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

    A Guide for Local Governments (Book), Energy Efficiency & Renewable Energy (EERE) Solar Powering Your Community: A Guide for Local Governments (Book), Energy Efficiency &...

  9. Locally Advanced Prostate Cancer: Three-Dimensional Magnetic...

    Office of Scientific and Technical Information (OSTI)

    Locally Advanced Prostate Cancer: Three-Dimensional Magnetic Resonance Spectroscopy to Monitor Prostate Response to Therapy Citation Details In-Document Search Title: Locally...

  10. Obama Administration Announces Additional $11,072,300 for Local...

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

    1,072,300 for Local Energy Efficiency Improvements in Delaware Obama Administration Announces Additional 11,072,300 for Local Energy Efficiency Improvements in Delaware March 26,...

  11. Local Incentive-Based Policy for Vegetable-Agroforestry: alocally...

    Open Energy Info (EERE)

    Local Incentive-Based Policy for Vegetable-Agroforestry: a locally-appropriate adaptation and mitigation action (LAAMA) to climate change Jump to: navigation, search Tool Summary...

  12. State and Local Code Implementation: South-central Region - 2014...

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

    2014 BTO Peer Review State and Local Code Implementation: Northeast Region - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review...

  13. State and Local Code Implementation: Southwest Region - 2014...

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

    and Local Code Implementation: Southeast Region - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review Green Codes and...

  14. How Much Do Local Regulations Matter? Exploring the Impact of...

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

    Matter? Exploring the Impact of Permitting and Local Regulatory Processes on PV Prices in the United States How Much Do Local Regulations Matter? Exploring the Impact of...

  15. One size fits all? An assessment tool for solid waste management at local and national levels

    SciTech Connect (OSTI)

    Broitman, Dani; Ayalon, Ofira; Kan, Iddo

    2012-10-15

    Highlights: Black-Right-Pointing-Pointer Waste management schemes are generally implemented at national or regional level. Black-Right-Pointing-Pointer Local conditions characteristics and constraints are often neglected. Black-Right-Pointing-Pointer We developed an economic model able to compare multi-level waste management options. Black-Right-Pointing-Pointer A detailed test case with real economic data and a best-fit scenario is described. Black-Right-Pointing-Pointer Most efficient schemes combine clear National directives with local level flexibility. - Abstract: As environmental awareness rises, integrated solid waste management (WM) schemes are increasingly being implemented all over the world. The different WM schemes usually address issues such as landfilling restrictions (mainly due to methane emissions and competing land use), packaging directives and compulsory recycling goals. These schemes are, in general, designed at a national or regional level, whereas local conditions and constraints are sometimes neglected. When national WM top-down policies, in addition to setting goals, also dictate the methods by which they are to be achieved, local authorities lose their freedom to optimize their operational WM schemes according to their specific characteristics. There are a myriad of implementation options at the local level, and by carrying out a bottom-up approach the overall national WM system will be optimal on economic and environmental scales. This paper presents a model for optimizing waste strategies at a local level and evaluates this effect at a national level. This is achieved by using a waste assessment model which enables us to compare both the economic viability of several WM options at the local (single municipal authority) level, and aggregated results for regional or national levels. A test case based on various WM approaches in Israel (several implementations of mixed and separated waste) shows that local characteristics significantly influence WM costs, and therefore the optimal scheme is one under which each local authority is able to implement its best-fitting mechanism, given that national guidelines are kept. The main result is that strict national/regional WM policies may be less efficient, unless some type of local flexibility is implemented. Our model is designed both for top-down and bottom-up assessment, and can be easily adapted for a wide range of WM option comparisons at different levels.

  16. Local content of bipartite qubit correlations

    SciTech Connect (OSTI)

    Branciard, Cyril; Gisin, Nicolas [Group of Applied Physics, University of Geneva, 1211 Geneva (Switzerland); Scarani, Valerio [Centre for Quantum Technologies and Department of Physics, National University of Singapore, 117543 Singapore (Singapore)

    2010-02-15

    One of the last open problems concerning two qubits in a pure state is to find the exact local content of their correlation, in the sense of Elitzur, Popescu, and Rohrlich (EPR2) [A. C. Elitzur, S. Popescu, and D. Rohrlich, Phys. Lett. A162, 25 (1992)]. We propose an EPR2 decomposition that allows us to prove, for a wide range of states |{psi}({theta})>=cos{theta}|00>+sin{theta}|11>, that their local content is p{sub L}({theta})=cos2{theta}. We also share reflections on how to possibly extend this result to all two-qubit pure states.

  17. Localized quantum walks as secured quantum memory

    E-Print Network [OSTI]

    C. M. Chandrashekar; Th. Busch

    2015-04-21

    We show that a quantum walk process can be used to construct and secure quantum memory. More precisely, we show that a localized quantum walk with temporal disorder can be engineered to store the information of a single, unknown qubit on a compact position space and faithfully recover it on demand. Since the localization occurss with a finite spread in position space, the stored information of the qubit will be naturally secured from the simple eavesdropper. Our protocol can be adopted to any quantum system for which experimental control over quantum walk dynamics can be achieved.

  18. Graphene Nanoribbon in Sharply Localized Magnetic Fields

    E-Print Network [OSTI]

    Abdulaziz D. Alhaidari; Hocine Bahlouli; Abderrahim El Mouhafid; Ahmed Jellal

    2013-03-20

    We study the effect of a sharply localized magnetic field on the electron transport in a strip (ribbon) of graphene sheet, which allows to give results for the transmission and reflection probability through magnetic barriers. The magnetic field is taken as a single and double delta type localized functions, which are treated later as the zero width limit of gaussian fields. For both field configurations, we evaluate analytically and numerically their transmission and reflection coefficients. The possibility of spacial confinement due to the inhomogeneous field configuration is also investigated.

  19. How paper folds: bending with local constraints

    E-Print Network [OSTI]

    Jemal Guven; Martin Michael Mueller

    2007-12-06

    A variational framework is introduced to describe how a surface bends when it is subject to local constraints on its geometry. This framework is applied to describe the patterns of a folded sheet of paper. The unstretchability of paper implies a constraint on the surface metric; bending is penalized by an energy quadratic in mean curvature. The local Lagrange multipliers enforcing the constraint are identified with a conserved tangential stress that couples to the extrinsic curvature of the sheet. The framework is illustrated by examining the deformation of a flat sheet into a generalized cone.

  20. On Locality in Distributed Storage Systems

    E-Print Network [OSTI]

    Rawat, Ankit Singh

    2012-01-01

    This paper studies the design of codes for distributed storage systems (DSS) that enable local repair in the event of node failure. This paper presents locally repairable codes based on low degree multivariate polynomials. Its code construction mechanism extends work on Noisy Interpolating Set by Dvir et al. \\cite{dvir2011}. The paper presents two classes of codes that allow node repair to be performed by contacting 2 and 3 surviving nodes respectively. It further shows that both classes are good in terms of their rate and minimum distance, and allow their rate to be bartered for greater flexibility in the repair process.

  1. Cellular Automata with Symmetric Local Rules

    E-Print Network [OSTI]

    Vladimir V. Kornyak

    2006-09-18

    The cellular automata with local permutation invariance are considered. We show that in the two-state case the set of such automata coincides with the generalized Game of Life family. We count the number of equivalence classes of the rules under consideration with respect to permutations of states. This reduced number of rules can be efficiently generated in many practical cases by our C program. Since a cellular automaton is a combination of a local rule and a lattice, we consider also maximally symmetric two-dimensional lattices. In addition, we present the results of compatibility analysis of several rules from the Life family.

  2. An emerging architecture of local experimentalist governance in China : a study of local innovations in Baoding, 1992-2012

    E-Print Network [OSTI]

    Shin, Kyoung Mun

    2014-01-01

    What are the conditions under which local actors are more likely to carry out policy innovations that produce environmental or social benefits in local China? Previous studies on "Chinese experimentalism" suggest that local ...

  3. Influence strategies for systems of systems

    E-Print Network [OSTI]

    Shah, Nirav Bharat, 1979-

    2013-01-01

    Distributed decision making has been identified as a source of managerial complexity for leaders of systems of systems (SoS). A new framework, AIR (Anticipation-Influence-Reaction), is proposed to capture the feedback ...

  4. Influence of Motion Cueing on Helicopter Stabilization

    E-Print Network [OSTI]

    Influence of Motion Cueing on Helicopter Stabilization Daniel R. Berger, Cengiz Terzibas, and Heinrich H. Bülthoff Max Planck Institute for Biological Cybernetics, Tübingen, Germany Helicopters vestibular and somatosensory cues. To test this hypothesis, we measured helicopter hovering performance

  5. Lake thermal structure influences macroinvertebrate predation on

    E-Print Network [OSTI]

    Arnott, Shelley

    . KEYWORDS: thermal stratification; climate warming; Chaoborus; notonectid; Boreal Shield; mesocosm INTRODUCTION Climate change is expected to alter the timing, strength and depth of thermal stratificationLake thermal structure influences macroinvertebrate predation on crustacean zooplankton SHANNON A

  6. Microbially influenced corrosion in sour environments

    E-Print Network [OSTI]

    Li, Kwan (Kwan Hon)

    2014-01-01

    Microbially influenced corrosion (MIC) is a costly and poorly understood source of corrosion that plagues many modern industrial processes such as oil extraction and transportation. Throughout the years, many possible ...

  7. Energy availabilities for state and local development: 1975 data volume

    SciTech Connect (OSTI)

    Mills, J.B.; Rice, P.L.; Vogt, D.P.

    1980-01-01

    The supply, demand, and net imports of seven fuel types of four final consuming sectors for Bureau of Economic Analysis Areas (BEAs), states, census regions, and the nation in 1975 are presented. The data are formatted to present regional energy availability from primary extraction as well as from regional transformation processes. Extensive tables depict energy balances between availability and use for each specific fuel. In keeping with the Metric Conversion Act of 1975, this volume is reported in joules rather than in Btu's. The objective of this series is to provide a consistent base of historic and projected energy information within a standard format. Such a framework should aid regional policymakers in their consideration of regional-growth issues that may be influenced by the regional energy system. For analysis of specific regions, however, this basic data should be supplemented by additional information which only the local policy analyst can bring to bear in his assessment of the energy conditions that characterize his region.

  8. Proton Hexality in Local Grand Unification

    E-Print Network [OSTI]

    Stefan Forste; Hans Peter Nilles; Saul Ramos-Sanchez; Patrick K. S. Vaudrevange

    2010-09-03

    Proton hexality is a discrete symmetry that avoids the problem of too fast proton decay in the supersymmetric extension of the standard model. Unfortunately it is inconsistent with conventional grand unification. We show that proton hexality can be incorporated in the scheme of "Local Grand Unification" discussed in the framework of model building in (heterotic) string theory.

  9. May 21, 2014 Local Agency Traffic

    E-Print Network [OSTI]

    Minnesota, University of

    Field Evaluation Traffic Data Collection Processes Study Is there better EQUIPMENT for collecting low Improvements Field Evaluation Traffic Data Collection Processes Study Is there better EQUIPMENT for collecting;Project Overview 2013-2014Local Agency Data Collection 5 · Tested traffic sensors in a low

  10. Federal, State, and Local Water Quality Control

    E-Print Network [OSTI]

    Radcliffe, David

    Federal, State, and Local Water Quality Control An Assessment of the Current Laws Affecting 303(d), a TMDL is required to be implemented for any water body in which technology-based controls and non-point sources of pollution. In many situations, this method of water quality control is important

  11. Nanodiamond Collective Electron States and their Localization

    E-Print Network [OSTI]

    Ivan A. Denisov; Andrey A. Zimin; Leslie A. Bursill; Peter I. Belobrov

    2013-07-24

    The existence and localization of collective electron states for nanodiamond particles were studied both by solving a one-particle one-dimensional Schr\\"odinger equation in the Kronig-Penney potential and by ab initio computations of ground state wavefunctions of diamondoids C78H64, C123H100 and C211H140 at the DFT R-B3LYP/6-31G(d,p) level of theory. Three distinct classes of collective electron states have been found: collective bonding orbitals resembling the morphology of 3D-modulated particle in a box solutions; surface-localized non-bonding conductive Tamm states and subsurface-localized bonding states for non-uniformly compressed nanodiamond. Quantum-mechanical analysis shows that collective unpaired electrons are intrinsic to nanodiamond. Their subsurface localization is described in terms of surface compression arising from a self-consistency condition of the electron-nuclear wavefunction. Intrinsic spin existence is supposed to result from the collective and spread nature of subsurface orbitals, allowing spin-density fluctuation effects to become significant on this length scale. Suggested model allows to explain free spins of nanodiamond exhibited in experiments.

  12. Nanodiamond Collective Electron States and its Localization

    E-Print Network [OSTI]

    Denisov, Ivan A; Bursill, Leslie A; Belobrov, Peter I

    2013-01-01

    Existence and localization of collective electron states in nanodiamond particles were studied both by solving one-particle one-dimensional Schr\\"odinger equation in Kronig-Penney potential and by ab initio computations of ground state wavefunctions of diamondoids C78H64, C123H100 and C211H140 at the DFT R-B3LYP/6-31G(d,p) level of theory. Three distinct classes of collective electron states have been found: bonding orbitals resembling morphology of 3D-modulated particle in a box solutions; surface-localized non-bonding conductive Tamm states and subsurface-localized bonding states for non-uniformly compressed nanodiamond. Quantum-mechanical analysis shows that collective spin states are intrinsic to nanodiamond. Their subsurface localization is described in terms of surface compression arising form self-consistency condition of electron-nuclear wavefunction. Intrinsic spin existence is supposed to result from collective nature of spread subsurface orbitals, allowing spin-density fluctuation effect to become ...

  13. UNIVERSALITIES: FROM ANDERSON LOCALIZATION TO QUANTUM CHAOS

    E-Print Network [OSTI]

    Simons, Ben

    COURSE 1 UNIVERSALITIES: FROM ANDERSON LOCALIZATION TO QUANTUM CHAOS BORIS L. ALTSHULER AND B. D, and Quantum Chaos 73 8.1. Quantum Billiards 74 8.2. Numerics 75 8.3. Hard and Soft Chaos 77 8.4. Periodic

  14. p-ADIC ARAKELOV THEORY: LOCAL THEORY

    E-Print Network [OSTI]

    involving "Coleman analysis" on the completions above p. In this part of the paper we only deal. The goal of the local theory is to describe an exten* *sion of this pairing, by giving a Green function G (1.1) niPi, mjQj = nimjG(Pi, Qj) To isolate a canonical as possible Green

  15. CLIMATE CHANGE ADAPTATIONS FOR LOCAL WATER MANAGEMENT

    E-Print Network [OSTI]

    CLIMATE CHANGE ADAPTATIONS FOR LOCAL WATER MANAGEMENT IN THE SAN FRANCISCO BAY AREA water managers can adapt by changing water supply portfolios and operations. An engineering economic A White Paper from the California Energy Commission's California Climate Change Center JULY 2012 CEC

  16. Dynamical Localization in the Paul Trap

    E-Print Network [OSTI]

    M. El Ghafar; P. Torma; V. Savichev; E. Mayr; A. Zeiler; W. P. Schleich

    1996-12-18

    We show that quantum localization occurs in the center-of-mass motion of an ion stored in a Paul trap and interacting with a standing laser field. The present experimental state of the art makes the observation of this phenomenon feasible.

  17. Dynamical Localization in the Paul Trap

    E-Print Network [OSTI]

    Ghafar, M E; Savichev, V; Mayr, E; Zeiler, A; Schleich, W P

    1997-01-01

    We show that quantum localization occurs in the center-of-mass motion of an ion stored in a Paul trap and interacting with a standing laser field. The present experimental state of the art makes the observation of this phenomenon feasible.

  18. HYDROGEN LOCAL VIBRATIONAL MODES IN COMPOUND SEMICONDUCTORS

    E-Print Network [OSTI]

    McCluskey, Matthew

    HYDROGEN LOCAL VIBRATIONAL MODES IN COMPOUND SEMICONDUCTORS M.D. MCCLUSKEY* University) spectroscopy of hydrogen and deuterium in GaP, AlSb, ZnSe, and GaN has provided important information about the structures of dopant- hydrogen complexes and their interaction with the host lattice. In GaN:Mg, for example

  19. Global and local properties of asynchronous circuits

    E-Print Network [OSTI]

    Global and local properties of asynchronous circuits optimized for energy efficiency Paul I. P optimized for E \\Theta t n , the relationship between energy consumption and com­ putation delay energy consumption a major concern in VLSI design. As a consequence, energy efficiency is becoming

  20. Improvements of the local bosonic algorithm

    E-Print Network [OSTI]

    B. Jegerlehner

    1996-12-15

    We report on several improvements of the local bosonic algorithm proposed by M. Luescher. We find that preconditioning and over-relaxation works very well. A detailed comparison between the bosonic and the Kramers-algorithms shows comparable performance for the physical situation examined.

  1. Conductive atomic force microscopy study of local electronic transport in ZnTe thin films

    SciTech Connect (OSTI)

    Kshirsagar, Sachin D.; Krishna, M. Ghanashyam; Tewari, Surya P.

    2013-02-05

    ZnTe thin films obtained by the electron beam evaporation technique were subjected to thermal annealing at 500 Degree-Sign C for 2 hours. The as deposited films were amorphous but transformed to the crystalline state under influence of the thermal treatment. There is increase in optical absorption due to the heat treatment caused by increase in free carrier concentration. Conductive atomic force microscopy shows the presence of electronic inhomogeneities in the films. This is attributed to local compositional variations in the films. I-V analysis in these systems indicates formation of Schottky junction at the metal semiconductor (M-S) interface.

  2. Local gravitational physics of the Hubble expansion

    E-Print Network [OSTI]

    Sergei Kopeikin

    2015-01-21

    We study physical consequences of the Hubble expansion of FLRW manifold on measurement of space, time and light propagation in the local inertial frame. We analyse the solar system radar ranging and Doppler tracking experiments, and time synchronization. FLRW manifold is covered by global coordinates (t,y^i), where t is the cosmic time coinciding with the proper time of the Hubble observers. We introduce local inertial coordinates x^a=(x^0,x^i) in the vicinity of a world line of a Hubble observer with the help of a special conformal transformation. The local inertial metric is Minkowski flat and is materialized by the congruence of time-like geodesics of static observers being at rest with respect to the local spatial coordinates x^i. We consider geodesic motion of test particles and notice that the local coordinate time x^0=x^0(t) taken as a parameter along the world line of particle, is a function of the Hubble's observer time t. This function changes smoothly from x^0=t for a particle at rest (observer's clock), to x^0=t+1/2 Ht^2 for photons, where H is the Hubble constant. Thus, motion of a test particle is non-uniform when its world line is parametrized by time t. NASA JPL Orbit Determination Program presumes that motion of light (after the Shapiro delay is excluded) is uniform with respect to the time t but it does not comply with the non-uniform motion of light on cosmological manifold. For this reason, the motion of light in the solar system analysed with the Orbit Determination Program appears as having a systematic blue shift of frequency, of radio waves circulating in the Earth-spacecraft radio link. The magnitude of the anomalous blue shift of frequency is proportional to the Hubble constant H that may open an access to the measurement of this fundamental cosmological parameter in the solar system radiowave experiments.

  3. Influence of Mechanical Properties Relevant to Standoff Deflection...

    Office of Scientific and Technical Information (OSTI)

    Influence of Mechanical Properties Relevant to Standoff Deflection of Hazardous Asteroids Citation Details In-Document Search Title: Influence of Mechanical Properties Relevant to...

  4. Influence of Topological Spin Fluctuations on Charge Transport

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

    Influence of Topological Spin Fluctuations on Charge Transport Influence of Topological Spin Fluctuations on Charge Transport Print Wednesday, 27 April 2005 00:00 Layered...

  5. The influence of molecular orientation on organic bulk heterojunction...

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

    The influence of molecular orientation on organic bulk heterojunction solar cells The influence of molecular orientation on organic bulk heterojunction solar cells Print Monday, 28...

  6. Complex systems influence melting of Greenland ice sheet

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

    Complex systems influence melting of Greenland ice sheet Complex systems influence melting of Greenland ice sheet International research team's field work shows that, well, things...

  7. LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR SPENCER BLOCH AND H

    E-Print Network [OSTI]

    Bloch, Spencer

    LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D-MODULES SPENCER BLOCH AND H #19; EL #18; ENE ESNAULT To Armand Borel, in memoriam Abstract. Local Fourier transforms, analogous to the `-adic local Fourier if a certain in#12;nitesimal rigidity condition is satis#12;ed. As in [12], the argument uses local Fourier

  8. Local Regression with Meaningful Parameters Rafael A. Irizarry

    E-Print Network [OSTI]

    Irizarry, Rafael A.

    Local Regression with Meaningful Parameters Rafael A. Irizarry Abstract Local regression or loess squares. In this paper we will present a version of local regression that fits more general parametric, and financial data are included. KEY WORDS: Local Regression, Harmonic Model, Meaningful Parameters, Sound

  9. THE GENERALIZED RIEMANN INTEGRAL ON LOCALLY COMPACT SPACES

    E-Print Network [OSTI]

    Edalat, Abbas

    THE GENERALIZED RIEMANN INTEGRAL ON LOCALLY COMPACT SPACES Abbas Edalat Sara Negri Department on the theory of the generalized Riemann integral to the setting of bounded or locally nite measures on locally is the given locally nite measure. The generalized Riemann integral is de ned for bounded functions

  10. Fast/Fair Mobile Localization in Infrastructure Wireless Sensor Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Fast/Fair Mobile Localization in Infrastructure Wireless Sensor Networks Kiran Yedavalli, Bhaskar and Technology Center, Palo Alto, CA, USA We introduce the problem of fast and fair localization of mobile units and fairness of localization and investigate a heuristic algorithm for fast and fair localization. Simulation

  11. Local computation of angular velocity in rotational visual motion

    E-Print Network [OSTI]

    Grzywacz, Norberto

    Local computation of angular velocity in rotational visual motion Jose´ F. Barraza and Norberto M discrimination of angular velocity is local. Local discrimination of angular velocity requires an accurate of rotation result in a predictable systematic error when one is estimating local angular velocity. Our

  12. SOFTWARE LOCALIZATION: NOTES ON TECHNOLOGY AND CULTURE Kenneth Keniston

    E-Print Network [OSTI]

    Keniston, Kenneth

    SOFTWARE LOCALIZATION: NOTES ON TECHNOLOGY AND CULTURE Kenneth Keniston Kenneth Keniston is Andrew localization is to be understood. Introduction "Cultural localization" is the process whereby software written localized software is indistinguishable from software written by a member of that culture." Cultural

  13. Local rollback for fault-tolerance in parallel computing systems

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Yorktown Heights, NY); Chen, Dong (Yorktown Heights, NY); Gara, Alan (Yorktown Heights, NY); Giampapa, Mark E. (Yorktown Heights, NY); Heidelberger, Philip (Yorktown Heights, NY); Ohmacht, Martin (Yorktown Heights, NY); Steinmacher-Burow, Burkhard (Boeblingen, DE); Sugavanam, Krishnan (Yorktown Heights, NY)

    2012-01-24

    A control logic device performs a local rollback in a parallel super computing system. The super computing system includes at least one cache memory device. The control logic device determines a local rollback interval. The control logic device runs at least one instruction in the local rollback interval. The control logic device evaluates whether an unrecoverable condition occurs while running the at least one instruction during the local rollback interval. The control logic device checks whether an error occurs during the local rollback. The control logic device restarts the local rollback interval if the error occurs and the unrecoverable condition does not occur during the local rollback interval.

  14. Climatic influences on hillslope soil transport efficiency

    E-Print Network [OSTI]

    Schurr, Naomi D. (Naomi Danika)

    2014-01-01

    The soil transport coefficient D represents the relationship between local topographical gradient and soil flux in the landscape evolution model. This work presents new estimates of the soil transport coefficient D at 9 ...

  15. Dark energy domination in the local flow of giant galaxies

    E-Print Network [OSTI]

    Chernin, A D; Karachentsev, I D

    2015-01-01

    A dozen most luminous galaxies at distances up to 10 Mpc from the Local Group are moving away from the group forming the local expansion flow of giants. We use recent Hubble Space Telescope data on the local giants and their numerous fainter companions to study the dynamical structure and evolutionary trends of the flow. It is demonstrated that the dynamics of the flow is dominated by local dark energy. Keywords: Galaxies, groups and clusters of galaxies; local flows of galaxies; dark energy.

  16. Local Response to Global Climate Change: The Role of Local Development Plans in Climate Change Management 

    E-Print Network [OSTI]

    Grover, Himanshu

    2011-10-21

    change management issues in local policy making have remained a research rhetoric and have not yet translated into planning action. This gap between planning research and practice is probably due to lack of evidence based research on this issue...

  17. Higher rank stable pairs and virtual localization

    E-Print Network [OSTI]

    Artan Sheshmani

    2015-02-08

    We introduce a higher rank analog of the Pandharipande-Thomas theory of stable pairs on a Calabi-Yau threefold $X$. More precisely, we develop a moduli theory for frozen triples given by the data $O^r(-n)\\rightarrow F$ where $F$ is a sheaf of pure dimension 1. The moduli space of such objects does not naturally determine an enumerative theory: that is, it does not naturally possess a perfect symmetric obstruction theory. Instead, we build a zero-dimensional virtual fundamental class by hand, by truncating a deformation-obstruction theory coming from the moduli of objects in the derived category of $X$. This yields the first deformation-theoretic construction of a higher-rank enumerative theory for Calabi-Yau threefolds. We calculate this enumerative theory for local $\\mathbb{P}^1$ using the Graber-Pandharipande virtual localization technique.

  18. Measurement theory in local quantum physics

    E-Print Network [OSTI]

    Kazuya Okamura; Masanao Ozawa

    2015-04-24

    In this paper, we aim at establishing measurement theory in local quantum physics. For this purpose, we discuss a representation theory of completely positive (CP) instruments. We introduce a condition called the normal extension property (NEP) and establish a one-to-one correspondence between CP instruments with NEP and statistical equivalence classes of measuring processes. We further explore a class of CP instruments having measuring processes approximately by the notion of injectivity of von Neumann algebras. The existence problem of a family of a posteriori states is discussed and it is shown that NEP is equivalent to the existence of a strongly measurable family of a posteriori states for every normal state. Moreover, two examples of CP instruments without NEP are given. To conclude the paper, local measurements in algebraic quantum field theory are developed.

  19. Quantum Loops in Non-Local Gravity

    E-Print Network [OSTI]

    Talaganis, Spyridon

    2015-01-01

    In this proceedings, I will consider quantum aspects of a non-local, infinite-derivative scalar field theory - a ${\\it toy \\, model}$ depiction of a covariant infinite-derivative, non-local extension of Einstein's general relativity which has previously been shown to be free from ghosts around the Minkowski background. The graviton propagator in this theory gets an exponential suppression making it ${\\it asymptotically \\, free}$, thus providing strong prospects of resolving various classical and quantum divergences. In particular, I will find that at $1$-loop, the $2$-point function is still divergent, but once this amplitude is renormalized by adding appropriate counter terms, the ultraviolet (UV) behavior of all other $1$-loop diagrams as well as the $2$-loop, $2$-point function remains well under control. I will go on to discuss how one may be able to generalize our computations and arguments to arbitrary loops.

  20. MUSIC for localization of thunderstorm cells

    SciTech Connect (OSTI)

    Mosher, J.C.; Lewis, P.S.; Rynne, T.M.

    1993-12-31

    Lightning represents an event detectable optically, electrically, and acoustically, and several systems are already in place to monitor such activity. Unfortunately, such detection of lightning can occur too late, since operations need to be protected in advance of the first lightning strike. Additionally, the bolt itself can traverse several kilometers before striking the ground, leaving a large region of uncertainty as to the center of the storm and its possible strike regions. NASA Kennedy Space Center has in place an array of electric field mills that monitor the (effectively) DC electric field. Prior to the first lightning strike, the surface electric fields rise as the storm generator within a thundercloud begins charging. Extending methods we developed for an analogous source localization problem in mangnetoencephalography, we present Cramer-Rao lower bounds and MUSIC scans for fitting a point-charge source model to the electric field mill data. Such techniques can allow for the identification and localization of charge centers in cloud structures.

  1. Efficient Local Unfolding with Ancestor Stacks

    E-Print Network [OSTI]

    Puebla, G; Hermenegildo, M

    2009-01-01

    The most successful unfolding rules used nowadays in the partial evaluation of logic programs are based on well quasi orders (wqo) applied over (covering) ancestors, i.e., a subsequence of the atoms selected during a derivation. Ancestor (sub)sequences are used to increase the specialization power of unfolding while still guaranteeing termination and also to reduce the number of atoms for which the wqo has to be checked. Unfortunately, maintaining the structure of the ancestor relation during unfolding introduces significant overhead. We propose an efficient, practical local unfolding rule based on the notion of covering ancestors which can be used in combination with a wqo and allows a stack-based implementation without losing any opportunities for specialization. Using our technique, certain non-leftmost unfoldings are allowed as long as local unfolding is performed, i.e., we cover depth-first strategies.

  2. Localized Surface Plasmons in Vibrating Graphene Nanodisks

    E-Print Network [OSTI]

    Wang, Weihua; Mortensen, N Asger; Christensen, Johan

    2015-01-01

    Localized surface plasmons are confined collective oscillations of electrons in metallic nanoparticles. When driven by light, the optical response is dictated by geometrical parameters and the dielectric environment and plasmons are therefore extremely important for sensing applications. Plasmons in graphene disks have the additional benefit to be highly tunable via electrical stimulation. Mechanical vibrations create structural deformations in ways where the excitation of localized surface plasmons can be strongly modulated. We show that the spectral shift in such a scenario is determined by a complex interplay between the symmetry and shape of the modal vibrations and the plasmonic mode pattern. Tuning confined modes of light in graphene via acoustic excitations, paves new avenues in shaping the sensitivity of plasmonic detectors, and in the enhancement of the interaction with optical emitters, such as molecules, for future nanophotonic devices.

  3. Local structure of Liquid-Vapour Interfaces

    E-Print Network [OSTI]

    Maia Godonoga; Alex Malins; Jens Eggers; C. Patrick Royall

    2011-02-15

    The structure of a simple liquid may be characterised in terms of ground state clusters of small numbers of atoms of that same liquid. Here we use this sensitive structural probe to consider the effect of a liquid-vapour interface upon the liquid structure. At higher temperatures (above around half the critical temperature) we find that the predominant effect of the interface is to reduce the local density, which significantly suppresses the local cluster populations. At lower temperatures, however, pronounced interfacial layering is found. This appears to be connected with significant orientational ordering of clusters based on 3- and 5-membered rings, with the rings aligning perpendicular and parallel to the interface respectively. At all temperatures, we find that the population of five-fold symmetric structures is suppressed, rather than enhanced, close to the interface.

  4. Localization of intermediate-term earthquake prediction

    SciTech Connect (OSTI)

    Kossobokov, V.G.; Keilis-Borok, V.I. (International Inst. of Earthquake Prediction Theory and Mathematical Geophysics, Moscow (USSR)); Smith, S.W. (Univ. of Washington, Seattle (USA))

    1990-11-10

    Relative seismic quiescence within a region which has already been diagnosed as having entered a Time of Increased Probability (TIP) for the occurrence of a strong earthquake can be used to refine the locality in which the earthquake may be expected to occur. A simple algorithm with parameters fitted from the data in Northern California preceding the 1980 magnitude 7.0 earthquake offshore from Eureka depicts relative quiescence within the region of a TIP. The procedure was tested, without readaptation of parameter, on 17 other strong earthquake occurrences in North America, Japan, and Eurasia, most of which were in regions for which a TIP had been previously diagnosed. The localizing algorithm successfully outlined a region within which the subsequent earthquake occurred for 16 of these 17 strong earthquakes. The area of prediction in each case was reduced significantly, ranging between 7% and 25% of the total area covered by the TIP.

  5. Local wellposedness of Chern-Simons-Schrödinger

    E-Print Network [OSTI]

    Baoping Liu; Paul Smith; Daniel Tataru

    2012-12-06

    In this article we consider the initial value problem for the Chern-Simons-Schrodinger model in two space dimensions. This is a covariant NLS type problem which is L^2 critical. For this equation we introduce a so-called heat gauge, and prove that, with respect to this gauge, the problem is locally well-posed for initial data which is small in H^s, s > 0.

  6. Segmented Nanowires Displaying Locally Controllable Properties

    Energy Innovation Portal (Marketing Summaries) [EERE]

    2011-04-22

    The electrical, chemical, mechanical, and optical properties of nanostructures depend on their physical dimensions and chemical compositions. Current methods of forming nanowires rely on knowing the average values for these parameters. As a result, there is poor control over local properties of the nanowires, which may vary from spot to spot in an uncontrolled fashion. By using knowledge of the size-dependent phase diagram, the inventors have developed methods of controlling the properties...

  7. Local semicircle law for random regular graphs

    E-Print Network [OSTI]

    Roland Bauerschmidt; Antti Knowles; Horng-Tzer Yau

    2015-05-26

    We consider random $d$-regular graphs on $N$ vertices, with degree $d$ at least $(\\log N)^4$. We prove that the Green's function of the adjacency matrix and the Stieltjes transform of its empirical spectral measure are well approximated by Wigner's semicircle law, down to the optimal scale given by the typical eigenvalue spacing (up to a logarithmic correction). Aside from well-known consequences for the local eigenvalue distribution, this result implies the complete delocalization of all eigenvectors.

  8. Ultrashort pulse propagation and the Anderson localization

    E-Print Network [OSTI]

    Silvia Gentilini; Andrea Fratalocchi; Luca Angelani; Giancarlo Ruocco; Claudio Conti

    2008-10-09

    We investigate the dynamics of a 10 fs light pulse propagating in a random medium by the direct solution of the 3D Maxwell equations. Our approach employs molecular dynamics to generate a distribution of spherical scatterers and a parallel finite-difference time-domain code for the vectorial wave propagation. We calculate the disorder-averaged energy velocity and the decay time of the transmitted pulse Versus the localization length for an increasing refractive index.

  9. Stability of local quantum dissipative systems

    E-Print Network [OSTI]

    Cubitt, Toby S.; Lucia, Angelo; Michalakis, Spyridon; Perez-Garcia, David

    2015-04-07

    in the engineered Liouvillian itself. Once again, stability against local perturbations – this time for many-body Liouvillians rather than Hamiltonians – is of crucial importance. Indeed, in [53] the authors consider depolarizing noise acting on top of a dissipative... the canonical basis for Hx. Scalar product in Hx will be denoted by ??|??, and rank-one linear maps by |????|. For each finite subset ? ? ? , the associated Hilbert space is given by H? = ? x?? Hx, (1) and the algebra of observables supported on ? is defined...

  10. Complexity Classification of Local Hamiltonian Problems

    E-Print Network [OSTI]

    Cubitt, Toby; Montanaro, Ashley

    2015-06-02

    constraint satisfaction problems. Index Terms—Hamiltonian complexity; QMA-completeness. I. INTRODUCTION Constraint satisfaction problems (CSPs) are ubiquitous in computer science and have been intensively studied since the early days of complexity theory. A... Complexity classification of local Hamiltonian problems Toby Cubitt Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge, UK. tsc25@cam.ac.uk Ashley Montanaro Department of Computer Science, University...

  11. A comparison of remote vs. local influence of El Nin~o on the coastal circulation of the northeast Pacific

    E-Print Network [OSTI]

    -stress curl and the resulting oceanic pressure fields. Closer to shore, the near-coastal wind stress a a Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, P.O. Box 357941 model spans an area from Baja California through the Bering Sea, from the coast to $2000-km offshore

  12. Does quantum mechanics require non-locality?

    E-Print Network [OSTI]

    Ghenadie N. Mardari

    2014-10-29

    Non-commutative properties of single quanta must violate the limit of Bell's theorem, but not the boundary of Tsirelson's theorem. This is a consequence of three basic principles: superposition (every quantum is in many states at the same time), correspondence (only the net state of interference is real), and uncertainty (conjugate variables have inversely proportional spectra). The two conditions have only been verified with entangled pairs of quanta. It is not possible to perform incompatible measurements on the same entity. Hence, the principles of quantum mechanics cannot be verified directly. At least one of them could be wrong. Though, as shown by EPR, this can only be true if non-locality is at work. In light of the latest developments in quantum theory, even that assumption is insufficient. Non-local effects are either unable to cross Bell's limit, or forced to violate Tsirelson's bound. New layers of hidden variables are required to maintain belief in action-at-a-distance, but the three principles cannot be rejected in any case. Therefore, quantum mechanics is immune to this challenge. The hypothesis of non-locality is superfluous.

  13. Local Energy Landscape in a Simple Liquid

    E-Print Network [OSTI]

    Takuya Iwashita; Takeshi Egami

    2014-10-31

    It is difficult to relate the properties of liquids and glasses directly to their structure because of complexity in the structure which defies precise definition. The potential energy landscape (PEL) approach is a very insightful way to conceptualize the structure-property relationship in liquids and glasses, particularly on the effect of temperature and history. However, because of the highly multi-dimensional nature of the PEL it is hard to determine, or even visualize, the actual details of the energy landscape. In this article we introduce a modified concept of the local energy landscape (LEL) which is limited in phase space, and demonstrate its usefulness using molecular dynamics simulation on a simple liquid at high temperatures. The local energy landscape is given as a function of the local coordination number, the number of the nearest neighbor atoms. The excitations in the LEL corresponds to the so-called beta-relaxation process. The LEL offers a simple but useful starting point to discuss complex phenomena in liquids and glasses.

  14. Relativistic three-partite non-locality

    E-Print Network [OSTI]

    Montakhab, A

    2015-01-01

    Bell-like inequalities have been used in order to distinguish non-local quantum pure states by various authors. The behavior of such inequalities under Lorentz transformation has been a source of debate and controversies in the past. In this paper, we consider the two most commonly studied three-particle pure states, that of W and GHZ states which exhibit distinctly different type of entanglement. We discuss the various types of three-particle inequalities used in previous studies and point to their corresponding shortcomings and strengths. Our main result is that if one uses Svetlichny's inequality as the main measure of non-locality and uses the same angles in the rest frame ($S$) as well as the moving frame ($S^{\\prime}$), then maximally violated inequality in $S$ will decrease in the moving frame, and will eventually lead to lack of non-locality ( i.e. satisfaction of inequality) in the $v \\rightarrow c$ limit. This is shown for both GHZ and W states and in two different configurations which are commonly ...

  15. Local asymptotic normality in quantum statistics

    E-Print Network [OSTI]

    Madalin Guta; Anna Jencova

    2007-05-24

    The theory of local asymptotic normality for quantum statistical experiments is developed in the spirit of the classical result from mathematical statistics due to Le Cam. Roughly speaking, local asymptotic normality means that the family varphi_{\\theta_{0}+ u/\\sqrt{n}}^{n} consisting of joint states of n identically prepared quantum systems approaches in a statistical sense a family of Gaussian state phi_{u} of an algebra of canonical commutation relations. The convergence holds for all "local parameters" u\\in R^{m} such that theta=theta_{0}+ u/sqrt{n} parametrizes a neighborhood of a fixed point theta_{0}\\in Theta\\subset R^{m}. In order to prove the result we define weak and strong convergence of quantum statistical experiments which extend to the asymptotic framework the notion of quantum sufficiency introduces by Petz. Along the way we introduce the concept of canonical state of a statistical experiment, and investigate the relation between the two notions of convergence. For reader's convenience and completeness we review the relevant results of the classical as well as the quantum theory.

  16. Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model

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

    Zhang, Le; Luo, Feng; Xu, Ruina; Jiang, Peixue; Liu, Huihai

    2014-12-31

    The heat transfer and fluid transport of supercritical CO2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity of volumetricmore »heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.« less

  17. UPSTREAM AND DOWNSTREAM INFLUENCE ON STBLI UNSTEADINESS Upstream and Downstream Influence on the Unsteadiness

    E-Print Network [OSTI]

    Martín, Pino

    UPSTREAM AND DOWNSTREAM INFLUENCE ON STBLI UNSTEADINESS 1 Upstream and Downstream Influence the upstream flow and downstream flow with the shock motions. In Section 6, we characterize the separa between the incoming flow and the shock motions, as well as the downstream flow and the shock unsteadiness

  18. Influence of confinement on polymer-electrolyte relaxational dynamics.

    SciTech Connect (OSTI)

    Zanotti, J.-M.; Smith, L. J.; Price, D. L.; Saboungi, M.-L.; Intense Pulsed Neutron Source; Lab. Leon Brillouin (CEA-CRNS); Clark Univ.; CRMHT (CNRS); CRMD (CNRS)

    2004-01-01

    Conception and industrial production of viable high specific energy/power batteries is a central issue for the development of non-polluting vehicles. In terms of stored energy and safety, solid-state devices using polymer electrolytes are highly desirable. One of the most studied systems is PEO (polyethylene oxide) complexed by Li salts. Polymer segmental motions and ionic conductivity are closely related. Bulk PEO is actually a biphasic system where an amorphous and a crystalline state (Tm 335 K) coexist. To improve ionic conduction in those systems requires a significant increase of the amorphous phase fraction where lithium conduction is known to mainly take place. Confinement strongly affects properties of condensed matter and in particular the collective phenomena inducing crystallization. Confinement of the polymer matrix is therefore a possible alternative route to the unpractical use of high temperature. Results of a quasi-elastic incoherent neutron scattering study of the influence of confinement on polyethylene oxide (PEO) and (PEO)8Li+[(CF3SO2)2N]- (or (POE)8LiTFSI) dynamics are presented. The nano-confining media is Vycor, a silica based hydrophilic porous glass (characteristic size of the 3D pore network 50 {angstrom}). As expected, the presence of Li salt slows down the bulk polymer dynamics. The confinement also affects dramatically the apparent mean-square displacement of the polymer. Local relaxational PEO dynamics is described KWW model. We also present an alternate model and show how the detailed polymer dynamics (correlation times and local geometry of the motions) can be described without the use of such stretched exponentials so as to access a rheology-related meaningful physical quantity: the monomeric friction coefficient.

  19. Harmonic influence in large-scale networks Daron Acemoglu

    E-Print Network [OSTI]

    Como, Giacomo

    Harmonic influence in large-scale networks Daron Acemoglu , Giacomo Como , Fabio Fagnani , and Asuman Ozdaglar§ 1. INTRODUCTION Harmonic influence has been recently introduced as a measure = 0 and xs1 = 1, respectively, the harmonic influence vector x measures the relative influence of s1

  20. Preoperative irradiation, lymphadenectomy, and 125iodine implantation for patients with localized carcinoma of the prostate

    SciTech Connect (OSTI)

    DeLaney, T.F.; Shipley, W.U.; O'Leary, M.P.; Biggs, P.J.; Prout, G.R. Jr.

    1986-10-01

    Fifty-four patients with clinically and surgically localized prostatic carcinoma were treated with low-dose preoperative irradiation (1050 cGy), pelvic lymphadenectomy, and interstitial /sup 125/Iodine implantation. The follow-up range is 2 to 9 years with a median follow-up of 5 years. Overall local tumor control is 92%. Actuarial 5-year survival is 86% and the actuarial disease-free survival at 5 years is 73%. Patients with poorly differentiated tumors have a significantly worse actuarial survival (62%) at 5 years than patients with well (95%) or moderately well differentiated tumors (93%), p = 0.04. Disease-free survival at 5 years was influenced by grade: well (100%), moderate (60%), and poor (48%), p = 0.03. Multivariate regression analysis indicates that only the degree of differentiation (p = 0.05) significantly impacts on survival. Both degree of differentiation (p = 0.04) and nodal status (p = 0.03) significantly influence disease-free survival. Potency has been maintained in 71% of patients potent at the time of implantation. Late reactions have been acceptable to date: bladder outlet obstruction (13%), mild proctitis (13%), cystourethritis (6%), incontinence (2%), and prostatic calculi (2%).

  1. The Influence of Chemi-ionization and Recombination Processes on Spectral Line Shapes in Stellar Atmospheres

    E-Print Network [OSTI]

    Mihajlov, Anatolij A; Sreckovic, Vladimir A; Dimitrijevic, Milan S

    2011-01-01

    In this work, the chemi-ionization processes in atom- Rydberg atom collisions, as well as the corresponding chemi-recombination processes are considered as factors of influence on the atom exited-state populations in weakly ionized layers of stellar atmospheres. The presented results are related to the photospheres of the Sun and some M red dwarfs as well as weakly ionized layers of DB white dwarfs atmospheres. It has been found that the mentioned chemi ionization/recombination processes dominate over the relevant concurrent electron-atom and electron-ion ionization and recombination process in all parts of considered stellar atmospheres. The obtained results demonstrate the fact that the considered chemi ionization/recombination processes must have a very significant influence on the optical properties of the stellar atmospheres. Thus, it is shown that these processes and their importance for non-local thermodynamic equilibrium (non-LTE) modeling of the solar atmospheres should be investigated further.

  2. Foreign Ownership, Control, or Influence Program

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

    1993-06-14

    To establish the policies, responsibilities, and authorities for implementing the Department of Energy (DOE) Foreign Ownership, Control, or Influence (FOCI) program, which is designed to obtain information that indicates whether DOE offerors/bidders or contractors/subcontractors are owned, controlled, or influenced by foreign individuals, governments, or organizations, and whether that foreign involvement may pose an undue risk to the common defense and security. This directive does not cancel another directive. Canceled by DOE O 470.1 of 9-28-1995.

  3. The Influence of Running on Patellar Water Content and Bone Marrow Edema in Females with and without Patellofemoral , H. H. Hu2

    E-Print Network [OSTI]

    Southern California, University of

    The Influence of Running on Patellar Water Content and Bone Marrow Edema in Females marrow water content changes in individuals with and without PFP. To accomplish this goal, we used the water content of the images measured. Equation 2 was used to estimate the water volume of local BME. Eq

  4. Supporting information of "Insights on organic aerosol aging and the influence of coal combustion at a regional receptor site of central eastern

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    #12;4 Excluding local influences During the campaign, coal combustion and biomass burning plumes were combustion events amounting to 40 hours in total were selected and shown in Fig.S2. Biomass burning as an indicator for biomass burning emissions (de Gouw et al., 2003;Yuan et al., 2010). Two biomass burning events

  5. THE LOCAL LEO COLD CLOUD AND NEW LIMITS ON A LOCAL HOT BUBBLE

    SciTech Connect (OSTI)

    Peek, J. E. G.; Heiles, Carl; Peek, Kathryn M. G.; Meyer, David M.; Lauroesch, J. T.

    2011-07-10

    We present a multi-wavelength study of the local Leo cold cloud (LLCC), a very nearby, very cold cloud in the interstellar medium (ISM). Through stellar absorption studies we find that the LLCC is between 11.3 pc and 24.3 pc away, making it the closest known cold neutral medium cloud and well within the boundaries of the local cavity. Observations of the cloud in the 21 cm H I line reveal that the LLCC is very cold, with temperatures ranging from 15 K to 30 K, and is best fit with a model composed of two colliding components. The cloud has associated 100 {mu}m thermal dust emission, pointing to a somewhat low dust-to-gas ratio of 48 x10{sup -22} MJy sr{sup -1} cm{sup 2}. We find that the LLCC is too far away to be generated by the collision among the nearby complex of local interstellar clouds but that the small relative velocities indicate that the LLCC is somehow related to these clouds. We use the LLCC to conduct a shadowing experiment in 1/4 keV X-rays, allowing us to differentiate between different possible origins for the observed soft X-ray background (SXRB). We find that a local hot bubble model alone cannot account for the low-latitude SXRB, but that isotropic emission from solar wind charge exchange (SWCX) does reproduce our data. In a combined local hot bubble and SWCX scenario, we rule out emission from a local hot bubble with an 1/4 keV emissivity greater than 1.1 Snowdens pc{sup -1} at 3{sigma}, four times lower than previous estimates. This result dramatically changes our perspective on our local ISM.

  6. Numerical investigation on operation mode influenced by external frequency in atmospheric pressure barrier discharge

    SciTech Connect (OSTI)

    Wang Qi [Dalian Institute of Semiconductor Technology, School of Electronics Science and Technology, Dalian University of Technology, Dalian 116023 (China); Sun Jizhong; Wang Dezhen [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China)

    2011-10-15

    The influence of external driving frequency on the discharge mode in the dielectric barrier discharge was investigated with a two-dimensional, self-consistent fluid model. The simulation results show that the helium discharge exhibits three operation modes: Townsend, homogeneous glow, and local glow discharges from the lower frequency (1 kHz) to the higher frequency (100 kHz) under discharge parameters specified in this work. The discharge operates in a Townsend mode when the driving frequency varies from 1 to about 7 kHz; while it exhibits homogenous glow characteristics in an approximate range from 7 to 65 kHz; when the external frequency exceeds 65 kHz, it turns into a local glow discharge. The effects of external driving frequency on the discharge mode were revealed and the physical reasons were discussed.

  7. Local distinguishability with preservation of entanglement

    E-Print Network [OSTI]

    Scott M. Cohen

    2007-06-25

    I consider deterministic distinguishability of a set of orthogonal, bipartite states when only a single copy is available and the parties are restricted to local operations and classical communication, but with the additional requirement that entanglement must be preserved in the process. Several general theorems aimed at characterizing sets of states with which the parties can succeed in such a task are proven. These include (1) a maximum for the number of states when the Schmidt rank of every outcome must be at least a given minimum; (2) an upper bound (equal to the dimension of Hilbert space if entanglement need not be preserved) for the sum over Schmidt ranks of the initial states when only one-way classical communication is allowed; and (3) separately, a necessary and a sufficient condition on the states such that their original Schmidt ranks can always be preserved. It is shown that our bound on the sum of Schmidt ranks can be exceeded if two-way communication is permitted, and this includes the case that entanglement need not be preserved, so that this sum can exceed the dimension of Hilbert space. Such questions, concerning how the various results are effected by the resources used by the parties are addressed for each theorem. This subject is closely related to the problem of locally purifying an entangled state from a mixed state, which is of direct relevance to teleportation and dense coding using a mixed-state resource. In an appendix, I give an extremely simple and transparent proof of "non-locality without entanglement", a phenomenon originally discussed by Bennett and co-workers several years ago.

  8. Pattern classification of terrain during amputee walking

    E-Print Network [OSTI]

    Farrell, Matthew Todd

    2013-01-01

    In this thesis I study the role of extrinsic (sensors placed on the body) versus intrinsic sensing (instruments placed on an artificial limb) and determine a robust set of sensors from physical and reliability constraints ...

  9. Production Decline Analysis Using Influence Functions

    SciTech Connect (OSTI)

    Zais, Elliot J.

    1980-12-16

    We previously reported (Zais, 1979) that Arps's exponential equation works quite well on geothermal production data. The hyperbolic equation should probably not be used. In this paper we show the progress made i n using influence functions t o describe reservoir production behavior.

  10. Kiwifruitsize influences softening rate during storage

    E-Print Network [OSTI]

    Crisosto, Carlos H.

    Kiwifruitsize influences softening rate during storage Carlos H. Crisosto o David Garner D Katia)at 32*F for 16 weeks. Un- der both storage conditions,large fruit had a slower rate of softening than fruit size and the rate of softening under air and CA conditions will help cold storage managerssafely

  11. Turkey's Quest for Influence in International Governance

    E-Print Network [OSTI]

    Robeson, Scott M.

    Turkey's Quest for Influence in International Governance Professor Kemal Kirici Director of the Center on the United States and Europe's Turkey Project, Brookings Institution csme@indiana.edu www.iub.edu/~csme In the Arab world, Turkey is now seen as a source of chaos in the region and often

  12. Solar influences on Climate PROFESSOR JOANNA HAIGH

    E-Print Network [OSTI]

    Solar influences on Climate PROFESSOR JOANNA HAIGH Executive summary THE SUN PROVIDES THE ENERGY THAT DRIVES THE EARTH'S CLIMATE system. Variations in the composition and intensity of incident solar and additional to those from man-made climate change. In the current epoch, solar variation impacts on regional

  13. IMPROVING CHANGE MANAGEMENT: HOW COMMUNICATION NATURE INFLUENCES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    IMPROVING CHANGE MANAGEMENT: HOW COMMUNICATION NATURE INFLUENCES RESISTANCE TO CHANGE Paula Matos perform in time,practitioners may enhance guidelines to effective change communication management. It is requiring constant development of management science to deal with change processes. Impact and frequency

  14. INTRODUCTION Atmospheric aerosol particles influence the Earth's

    E-Print Network [OSTI]

    Wunderle, Stefan

    , scattering, and absorbing solar electromagnetic radiation and by modifying cloud properties due to their roleINTRODUCTION Atmospheric aerosol particles influence the Earth's radiation budget by reflecting to maximum cover a region once in the daytime. In contrary, up-to-date geostationary instruments like

  15. Factors Influencing Succession: Lessons from Large, Infrequent

    E-Print Network [OSTI]

    Turner, Monica G.

    intense disturbances of large and small extent. Key words: disturbance frequency; disturbance intensityFactors Influencing Succession: Lessons from Large, Infrequent Natural Disturbances Monica G ABSTRACT Disturbance events vary in intensity, size, and fre- quency, but few opportunities exist to study

  16. Chemical Composition of Anthropogenically Influenced Groundwater

    E-Print Network [OSTI]

    Vallino, Joseph J.

    Chemical Composition of Anthropogenically Influenced Groundwater Jacqueline Gordon Brandeis of Biology 1 #12;ABSTRACT I examined the oxygen and nitrogen components of groundwater. I looked at groundwater from a pristine site, a human impacted site, and Title V treated wastewater. All of the water

  17. Statistical density modification using local pattern matching

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    2003-10-01

    Statistical density modification can make use of local patterns of density found in protein structures to improve crystallographic phases. A method for improving crystallographic phases is presented that is based on the preferential occurrence of certain local patterns of electron density in macromolecular electron-density maps. The method focuses on the relationship between the value of electron density at a point in the map and the pattern of density surrounding this point. Patterns of density that can be superimposed by rotation about the central point are considered equivalent. Standard templates are created from experimental or model electron-density maps by clustering and averaging local patterns of electron density. The clustering is based on correlation coefficients after rotation to maximize the correlation. Experimental or model maps are also used to create histograms relating the value of electron density at the central point to the correlation coefficient of the density surrounding this point with each member of the set of standard patterns. These histograms are then used to estimate the electron density at each point in a new experimental electron-density map using the pattern of electron density at points surrounding that point and the correlation coefficient of this density to each of the set of standard templates, again after rotation to maximize the correlation. The method is strengthened by excluding any information from the point in question from both the templates and the local pattern of density in the calculation. A function based on the origin of the Patterson function is used to remove information about the electron density at the point in question from nearby electron density. This allows an estimation of the electron density at each point in a map, using only information from other points in the process. The resulting estimates of electron density are shown to have errors that are nearly independent of the errors in the original map using model data and templates calculated at a resolution of 2.6 Å. Owing to this independence of errors, information from the new map can be combined in a simple fashion with information from the original map to create an improved map. An iterative phase-improvement process using this approach and other applications of the image-reconstruction method are described and applied to experimental data at resolutions ranging from 2.4 to 2.8 Å.

  18. Star Formation in the Local Milky Way

    E-Print Network [OSTI]

    Lada, Charles J

    2015-01-01

    Studies of molecular clouds and young stars near the sun have provided invaluable insights into the process of star formation. Indeed, much of our physical understanding of this topic has been derived from such studies. Perhaps the two most fundamental problems confronting star formation research today are: 1) determining the origin of stellar mass and 2) deciphering the nature of the physical processes that control the star formation rate in molecular gas. As I will briefly outline here, observations and studies of local star forming regions are making particularly significant contributions toward the solution of both these important problems.

  19. Optimizing local protocols implementing nonlocal quantum gates

    E-Print Network [OSTI]

    Scott M. Cohen

    2010-02-02

    We present a method of optimizing recently designed protocols for implementing an arbitrary nonlocal unitary gate acting on a bipartite system. These protocols use only local operations and classical communication with the assistance of entanglement, and are deterministic while also being "one-shot", in that they use only one copy of an entangled resource state. The optimization is in the sense of minimizing the amount of entanglement used, and it is often the case that less entanglement is needed than with an alternative protocol using two-way teleportation.

  20. Localized Domains of Disoriented Chiral Condensates

    E-Print Network [OSTI]

    B. K. Nandi; T. K. Nayak; B. Mohanty; D. P. Mahapatra; Y. P. Viyogi

    1999-03-12

    A new method to search for localized domains of disoriented chiral condensates (DCC) has been proposed by utilising the (eta-phi) phase space distributions of charged particles and photons. Using the discrete wavelet transformation (DWT) analysis technique, it has been found that the presence of DCC domains broadens the distribution of wavelet coefficients in comparison to that of normal events. Strength contours have been derived from the differences in rms deviations of these distributions by taking into account the size of DCC domains and the probability of DCC production in ultra-relativistic heavy ion collisions. This technique can be suitably adopted to experiments measuring multiplicities of charged particles and photons.

  1. Localization on the Landscape and Eternal Inflation

    E-Print Network [OSTI]

    Laura Mersini-Houghton; Malcolm J. Perry

    2014-04-22

    We investigate the validity of the assertion that eternal inflation populates the landscape of string theory. We verify that bubble solutions do not satisfy the Klein Gordon equation for the landscape potential. Solutions to the landscape potential within the formalism of quantum cosmology are Anderson localized wavefunctions. Those are inconsistent with inflating bubble solutions. The physical reasons behind the failure of a relation between eternal inflation and the landscape are rooted in quantum phenomena such as interference between wavefunction concentrated around the various vacua in the landscape.

  2. Local Rebate Program | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon: EnergyLloyd, New York: EnergyLoan Program Jump to:Local

  3. Washington, D.C. - Local Information | NREL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0Photos and Videos VideosDepartment- Local Information

  4. Think Spring, Think Local... | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyThe U.S.Laclede GasEfficiency MaineAutoSecurity |thePresent dayEating locally grown

  5. Local High School Students Tour 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC) ProximityCenterLeeincreasesLocal High School

  6. Local Information - Radiation Effects Facility / Cyclotron Institute /

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC) ProximityCenterLeeincreasesLocal High

  7. The Local Board of Health Environmental Health Primer

    E-Print Network [OSTI]

    Tools: EnvironmentalPolicy,Law,andAdministration.InThe Local Board of Health Environmental H Working to strengthen.). Management Tools: Environmental Policy, Law, and Administration Factsheet #12;The Local Board of Health Environmental Health Primer environmental health Background

  8. An implantable device for localized drug delivery and sensing

    E-Print Network [OSTI]

    Daniel, Karen D

    2009-01-01

    There are many potential clinical applications for localized drug delivery and sensing systems, such as cancer, vaccinations, pain management, and hormone therapy. Localized drug delivery systems reduce the amount of drug ...

  9. Local Promise for Climate Mitigation: An Empirical Assessment

    E-Print Network [OSTI]

    Feiock, Richard C.; Outka, Uma

    2012-01-01

    This interdisciplinary work contributes empirical grounding to the growing literature in law and public policy on local governments and climate mitigation. Much of the recent scholarship presents an optimistic view of the potential in local climate...

  10. INSTANTANEOUS DAMAGE IDENTIFICATION AND LOCALIZATION THROUGH SPARSE LASER ULTRASONIC SCANNING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INSTANTANEOUS DAMAGE IDENTIFICATION AND LOCALIZATION THROUGH SPARSE LASER ULTRASONIC SCANNING This study proposes an instantaneous damage identification and localization technique through sparse laser ultrasonic signals are obtained, a damage index (DI) representing the violation of the linear reciprocity

  11. Welcoming the Outsider: Local Construction of the Law towards Immigrants

    E-Print Network [OSTI]

    Williams, Linda M.

    2013-08-31

    This dissertation examines the local construction of law on the street regarding immigrants. Local agencies play a key role in immigration enforcement and in providing services to immigrants. They are increasingly the face ...

  12. Optimal Path Generation for Monocular Simultaneous Localization and Mapping 

    E-Print Network [OSTI]

    Roorda, Timothy Isaac

    2014-09-01

    Monocular Simultaneous Localization and Mapping (MonoSLAM), a derivative of Simultaneous Localization and Mapping (SLAM), is a navigation method for autonomous vehicles that uses only an inertial measurement unit and a camera to map the environment...

  13. Climate change and trans-local solidarities Paul Routledge

    E-Print Network [OSTI]

    Guo, Zaoyang

    Climate change and trans-local solidarities Paul Routledge Paul.Routledge@ges.gla.ac.uk This project will consider local responses and adaptations to climate change across a range of different sites

  14. U.S. Environmental Protection Agency State and Local Climate...

    Open Energy Info (EERE)

    U.S. Environmental Protection Agency State and Local Climate and Energy Program Jump to: navigation, search Name U.S. Environmental Protection Agency State and Local Climate and...

  15. Localization with witnesses Arun Saha and Mart Molle

    E-Print Network [OSTI]

    Molle, Mart

    Localization with witnesses Arun Saha and Mart Molle Department of Computer Science and Engineering University of California, Riverside Riverside, CA, 92521, USA saha, mart¡ @cs.ucr.edu Abstract Localization

  16. Nonlocal and quasi-local field theories

    E-Print Network [OSTI]

    E. T. Tomboulis

    2015-07-03

    We investigate nonlocal field theories, a subject that has attracted some renewed interest in connection with nonlocal gravity models. We study, in particular, scalar theories of interacting delocalized fields, the delocalization being specified by nonlocal integral kernels. We distinguish between strictly nonlocal and quasi-local (compact support) kernels and impose conditions on them to insure UV finiteness and unitarity of amplitudes. We study the classical initial value problem for the partial integro-differential equations of motion in detail. We give rigorous proofs of the existence but accompanying loss of uniqueness of solutions due to the presence of future, as well as past, "delays," a manifestation of acausality. In the quantum theory we derive a generalization of the Bogoliubov causality condition equation for amplitudes, which explicitly exhibits the corrections due to nonlocality. One finds that, remarkably, for quasi-local kernels all acausal effects are confined within the compact support regions. We briefly discuss the extension to other types of fields and prospects of such theories.

  17. Localization length of nearly periodic layered metamaterials

    E-Print Network [OSTI]

    del Barco, O

    2015-01-01

    We have analyzed numerically the localization length of light $\\xi$ for nearly periodic arrangements of homogeneous stacks (formed exclusively by right-handed materials) and mixed stacks (with alternating right and left-handed metamaterials). Layers with index of refraction $n_1$ and thickness $L_1$ alternate with layers of index of refraction $n_2$ and thickness $L_2$. Positional disorder has been considered by shifting randomly the positions of the layer boundaries with respect to periodic values. For homogeneous stacks, we have shown that the localization length is modulated by the corresponding bands and that $\\xi$ is enhanced at the center of each allowed band. In the limit of long-wavelengths $\\lambda$, the parabolic behavior previously found in purely disordered systems is recovered, whereas for $\\lambda \\ll L_1 + L_2$ a saturation is reached. In the case of nearly periodic mixed stacks with the condition $|n_1 L_1|=|n_2 L_2|$, instead of bands there is a periodic arrangement of Lorenztian resonances, ...

  18. Star Formation Histories in the Local Group

    E-Print Network [OSTI]

    Thomas M. Brown

    2004-07-09

    Deep color magnitude diagrams extending to the main sequence provide the most direct measure of the detailed star formation history in a stellar population. With large investments of observing time, HST can obtain such data for populations out to 1 Mpc, but its field of view is extremely small in comparison to the size of Local Group galaxies. This limitation severely constrains our understanding of galaxy formation. For example, the largest galaxy in the Local Group, Andromeda, offers an ideal laboratory for studying the formation of large spiral galaxies, but the galaxy shows substructure on a variety of scales, presumably due to its violent merger history. Within its remaining lifetime, HST can only sample a few sight-lines through this complex galaxy. In contrast, a wide field imager could provide a map of Andromeda's halo, outer disk, and tidal streams, revealing the spatially-dependent star formation history in each structure. The same data would enable many secondary studies, such as the age variation in Andromeda's globular cluster system, gigantic samples of variable stars, and microlensing tracers of the galaxy's dark matter distribution.

  19. Plasma Turbulence in the Local Bubble

    E-Print Network [OSTI]

    Steven R. Spangler

    2008-06-05

    Turbulence in the Local Bubble could play an important role in the thermodynamics of the gas that is there. The best astronomical technique for measuring turbulence in astrophysical plasmas is radio scintillation. Measurements of the level of scattering to the nearby pulsar B0950+08 by Philips and Clegg in 1992 showed a markedly lower value for the line-of-sight averaged turbulent intensity parameter $$ than is observed for other pulsars, consistent with radio wave propagation through a highly rarefied plasma. In this paper, we discuss the observational progress that has been made since that time. At present, there are four pulsars (B0950+08, B1133+16, J0437-4715, and B0809+74) whose lines of sight seem to lie mainly within the local bubble. The mean densities and line of sight components of the interstellar magnetic field along these lines of sight are smaller than nominal values for pulsars, but not by as much expected. Three of the four pulsars also have measurements of interstellar scintillation. The value of the parameter $$ is smaller than normal for two of them, but is completely nominal for the third. This inconclusive status of affairs could be improved by measurements and analysis of ``arcs'' in ``secondary spectra'' of pulsars.

  20. Incoherent Control of Locally Controllable Quantum Systems

    E-Print Network [OSTI]

    Daoyi Dong; Chenbin Zhang; Herschel Rabitz; Alexander Pechen; Tzyh-Jong Tarn

    2008-10-21

    An incoherent control scheme for state control of locally controllable quantum systems is proposed. This scheme includes three steps: (1) amplitude amplification of the initial state by a suitable unitary transformation, (2) projective measurement on the amplified state, and (3) final optimization by a unitary controlled transformation. The first step increases the amplitudes of some desired eigenstates and the corresponding probability of observing these eigenstates, the second step projects, with high probability, the amplified state into a desired eigenstate, and the last step steers this eigenstate into the target state. Within this scheme, two control algorithms are presented for two classes of quantum systems. As an example, the incoherent control scheme is applied to the control of a hydrogen atom by an external field. The results support the suggestion that projective measurements can serve as an effective control and local controllability information can be used to design control laws for quantum systems. Thus, this scheme establishes a subtle connection between control design and controllability analysis of quantum systems and provides an effective engineering approach for controlling quantum systems with partial controllability information.

  1. TWO LOCAL VOLUME DWARF GALAXIES DISCOVERED IN 21 cm EMISSION: PISCES A AND B

    SciTech Connect (OSTI)

    Tollerud, Erik J.; Geha, Marla C.; Grcevich, Jana; Putman, Mary E.; Stern, Daniel E-mail: marla.geha@yale.edu E-mail: mputman@astro.columbia.edu

    2015-01-01

    We report the discovery of two dwarf galaxies, Pisces A and B, from a blind 21 cm H I search. These were the only two galaxies found via optical imaging and spectroscopy of 22 H I clouds identified in the GALFA-H I survey as dwarf galaxy candidates. They have properties consistent with being in the Local Volume (<10 Mpc), and one has resolved stellar populations such that it may be on the outer edge of the Local Group (?1 Mpc from M31). While the distance uncertainty makes interpretation ambiguous, these may be among the faintest star-forming galaxies known. Additionally, rough estimates comparing these galaxies to ?CDM dark matter simulations suggest consistency in number density, implying that the dark matter halos likely to host these galaxies are primarily H I-rich. The galaxies may thus be indicative of a large population of dwarfs at the limit of detectability that are comparable to the faint satellites of the Local Group. Because they are outside the influence of a large dark matter halo to alter their evolution, these galaxies can provide critical anchors to dwarf galaxy formation models.

  2. Integral Closures of Ideals in Completions of Regular Local Domains

    E-Print Network [OSTI]

    Integral Closures of Ideals in Completions. of Regular Local Domains. WILLIAM HEINZER, Department of Mathematics, Purdue University,. West Lafayette, IN ...

  3. Multi-Scale Jacobi Method for Anderson Localization

    E-Print Network [OSTI]

    John Z. Imbrie

    2014-07-03

    A new KAM-style proof of Anderson localization is obtained. A sequence of local rotations is defined, such that off-diagonal matrix elements of the Hamiltonian are driven rapidly to zero. This leads to the first proof via multi-scale analysis of exponential decay of the eigenfunction correlator (this implies strong dynamical localization). The method has been used in recent work on many-body localization [arXiv:1403.7837].

  4. An Integrated Assessment of the Influences of Upland Thermal-Erosional Features on Landscape Structure and Function in the Foothills of the Brooks Range, Alaska

    E-Print Network [OSTI]

    Crosby, Benjamin T.

    The Rubenstein School of Environment and Natural Resources, University of Vermont, USA B.T. Crosby, K. Krieger in foothill and mountain terrain are less well known than similar dynamics on coastal plains and peat plateaus

  5. A KNOWLEDGE-BASED APPROACH TO PROTEIN LOCAL STRUCTURE PREDICTION*

    E-Print Network [OSTI]

    Wong, Limsoon

    prediction method that assigns a measure called the local match rate to each position of an amino acid its amino acid sequence. Local structure prediction helps improve the per- formance of both profile@iis.sinica.edu.tw 1 #12;structures, predicting protein local structures from amino acid sequences is much more

  6. Postgraduate Studentship MA in English Local History and Family History

    E-Print Network [OSTI]

    Banaji,. Murad

    Postgraduate Studentship MA in English Local History and Family History The Thaxted Society (www.thaxted.co.uk) would like to sponsor a student to undertake the MA degree in English Local History and Family History in the Centre for English Local History at the University of Leicester. The student will undertake the usual

  7. Realization of some local unitary operations by graph switching

    E-Print Network [OSTI]

    Supriyo Dutta; Bibhas Adhikari; Subhashish Banerjee

    2015-02-27

    In this work we implement a graph theoretical realization of local unitary transformations, implemented by single qubit Pauli gates, by adapting techniques of graph switching. This leads to the concept of local unitary equivalent graphs. We illustrate our method by a few, well known, local unitary transformations implemented by single qubit Pauli and Hadamard gates.

  8. The Local Board of Health Environmental Health Primer

    E-Print Network [OSTI]

    The Local Board of Health Environmental Health Primer Air Quality Factsheet environmental health. · Indoorairqualityatspecializedplaces,suchasschoolsorindoorpools,shouldbe monitoredaswell. Board of Health ActionsProtectionAgency.IndoorAirQuality.Availableatwww.epa.gov/iaq/ · NationalAssociationofLocalBoardsofHealth.(2011).AirQuality.InThe Local Board of Health Environmental Health

  9. Fast Computation of Local Correlation Coefficients on Graphics Processing Units

    E-Print Network [OSTI]

    Pitsianis, Nikos P.

    Fast Computation of Local Correlation Coefficients on Graphics Processing Units Georgios and architectural means, for fast calcula- tion of local correlation coefficients, which is a basic image the use of multi-dimensional fast Fourier transforms, without losing or sacrificing local and non

  10. Image Authentication and Tampering Localization using Distributed Source Coding

    E-Print Network [OSTI]

    Girod, Bernd

    Image Authentication and Tampering Localization using Distributed Source Coding Yao-Chung Lin the legitimate diversity of encoded images from tampering. An authentication decoder was supplied with a Slepian the decoder to localize tampering in an image already deemed to be inauthentic. The localization decoder

  11. Energy-Efficient Localized Routing in Random Multihop Wireless Networks

    E-Print Network [OSTI]

    Wang, Yu

    Energy-Efficient Localized Routing in Random Multihop Wireless Networks Yu Wang, Senior Member the energy efficiency of routes in multihop wireless networks. Among them, several geographical localized Localized Energy-Aware Restricted Neighborhood routing (LEARN), which can guarantee the energy efficiency

  12. Efficient Verification of the PCI Local Bus using Boolean Satisfiability

    E-Print Network [OSTI]

    Aloul, Fadi

    IWLS'00 Page 1 Efficient Verification of the PCI Local Bus using Boolean Satisfiability Fadi A is to study the application of Boolean Satisfiability to the verification of the PCI Local Bus. The novel such as achieving high speed testing. To demonstrate how our method works, we have modeled the PCI Local Bus

  13. A PDF method applied to local wind simulation Mireille Bossy

    E-Print Network [OSTI]

    Baehr, Christophe

    the wind forecasting at small scales. Joint work with · F. Bernardin, J.F. Jabir, A. Rousseau (INRIA) · PA PDF method applied to local wind simulation Mireille Bossy Equipe TOSCA Journ´ee M for local wind simulation Marsh 16 2007 1 / 47 #12;Local wind forecasting Project supported by the French

  14. Local Government Innovation: A Policy Analysis of Stormwater Credit and

    E-Print Network [OSTI]

    Local Government Innovation: A Policy Analysis of Stormwater Credit and Incentive Program of Thesis: Local Government Innovation: A Policy Analysis of Stormwater Credit and Incentive Program stormwater infrastructure on private lands. Using a case study approach and interviews with local government

  15. CONSTRUCTIVE AND LOCAL SEARCH HEURISTIC TECHNIQUES FOR FPGA PLACEMENT

    E-Print Network [OSTI]

    Areibi, Shawki M

    CONSTRUCTIVE AND LOCAL SEARCH HEURISTIC TECHNIQUES FOR FPGA PLACEMENT Xiaojun Bao and Shawki Areibi that significantly reduce the amount of computa- tion time required to achieve acceptable-quality placements algorithm is an enhancement of local search and is implemented as a Simple Local Search (SLS) and Immediate

  16. Vertical Protection Levels for a Local Airport Monitor for WAAS

    E-Print Network [OSTI]

    Stanford University

    they provide acceptable availability, even for a VAL of 10 m. INTRODUCTION The Local Airport Monitor (LAMVertical Protection Levels for a Local Airport Monitor for WAAS Jason Rife, Sam Pullen, Todd Walter development costs for the Local Area Augmentation System (LAAS) have motivated the investigation

  17. A Dichotomy for Local Small-Bias Generators Benny Applebaum

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    by the discovery that, under widely accepted cryptographic assumptions, local functions can achieve rich formsA Dichotomy for Local Small-Bias Generators Benny Applebaum Andrej Bogdanov Alon Rosen September 17 measure of pseudorandomness for local functions with large stretch. We do so by demonstrating

  18. Final Independent External Peer Review Report Manhattan, Kansas, Local Protection

    E-Print Network [OSTI]

    US Army Corps of Engineers

    and the local project sponsor (City of Manhattan, Kansas) have conducted a feasibility study of the existing local protection project, which serves a highly developed area around downtown Manhattan, Kansas Rivers. The City of Manhattan, Kansas owns and operates the Manhattan, Kansas local protection project

  19. LOCALIZED PRECIPITATION, LAKE-EFFECT STORMS, AND EROSION ON MARS.

    E-Print Network [OSTI]

    LOCALIZED PRECIPITATION, LAKE-EFFECT STORMS, AND EROSION ON MARS. Edwin. S. Kite*, Earth], this hypothesis has never been modeled. We report numerical tests of localized precipitation using MRAMS ephemeral lakes. For a given vapor injection rate or lake surface temperature, localized precipitation

  20. The influence of cracks in rotating shafts

    E-Print Network [OSTI]

    Sinou, Jean-Jacques

    2008-01-01

    In this paper, the influence of transverse cracks in a rotating shaft is analysed. The paper addresses the two distinct issues of the changes in modal properties and the influence of crack breathing on dynamic response during operation. Moreover, the evolution of the orbit of a cracked rotor near half of the first resonance frequency is investigated. The results provide a possible basis for an on-line monitoring system. In order to conduct this study, the dynamic response of a rotor with a breathing crack is evaluated by using the alternate frequency/time domain approach. It is shown that this method evaluates the nonlinear behaviour of the rotor system rapidly and efficiently by modelling the breathing crack with a truncated Fourier series. The dynamic response obtained by applying this method is compared with that evaluated through numerical integration. The resulting orbit during transient operation is presented and some distinguishing features of a cracked rotor are examined.

  1. The influence of cracks in rotating shafts

    E-Print Network [OSTI]

    Jean-Jacques Sinou; A. W. Lees

    2008-01-19

    In this paper, the influence of transverse cracks in a rotating shaft is analysed. The paper addresses the two distinct issues of the changes in modal properties and the influence of crack breathing on dynamic response during operation. Moreover, the evolution of the orbit of a cracked rotor near half of the first resonance frequency is investigated. The results provide a possible basis for an on-line monitoring system. In order to conduct this study, the dynamic response of a rotor with a breathing crack is evaluated by using the alternate frequency/time domain approach. It is shown that this method evaluates the nonlinear behaviour of the rotor system rapidly and efficiently by modelling the breathing crack with a truncated Fourier series. The dynamic response obtained by applying this method is compared with that evaluated through numerical integration. The resulting orbit during transient operation is presented and some distinguishing features of a cracked rotor are examined.

  2. The local Poisson hypothesis for solar flares

    E-Print Network [OSTI]

    M. S. Wheatland

    2001-07-09

    The question of whether flares occur as a Poisson process has important consequences for flare physics. Recently Lepreti et al. presented evidence for local departure from Poisson statistics in the Geostationary Operational Environmental Satellite (GOES) X-ray flare catalog. Here it is argued that this effect arises from a selection effect inherent in the soft X-ray observations; namely that the slow decay of enhanced flux following a large flare makes detection of subsequent flares less likely. It is also shown that the power-law tail of the GOES waiting-time distribution varies with the solar cycle. This counts against any intrinsic significance to the appearance of a power law, or to the value of its index.

  3. Native Americans and state and local governments

    SciTech Connect (OSTI)

    Rusco, E.R.

    1991-10-01

    Native Americans` concerns arising from the possibility of establishment of a nuclear repository for high level wastes at Yucca Mountain fall principally into two main categories. First, the strongest objection to the repository comes from traditional Western Shoshones. Their objections are based on a claim that the Western Shoshones still own Yucca Mountain and also on the assertion that putting high level nuclear wastes into the ground is a violation of their religious views regarding nature. Second, there are several reservations around the Yucca Mountain site that might be affected in various ways by building of the repository. There is a question about how many such reservations there are, which can only be decided when more information is available. This report discusses two questions: the bearing of the continued vigorous assertion by traditionalist Western Shoshones of their land claim; and the extent to which Nevada state and local governments are able to understand and represent Indian viewpoints about Yucca Mountain.

  4. Local momentum space and the vector field

    E-Print Network [OSTI]

    David J. Toms

    2014-08-04

    The local momentum space expansion for the real vector field is considered. Using Riemann normal coordinates we obtain an expansion of the Feynman Green function up and including terms that are quadratic in the curvature. The results are valid for a non-minimal operator such as that arising from a general Feynman type gauge fixing condition. The result is used to derive the first three terms in the asymptotic expansion for the coincidence limit of the heat kernel without taking the trace, thus obtaining the untraced heat kernel coefficients. The spacetime dimension is kept general before specializing to four dimensions for comparison with previously known results. As a further application we re-examine the anomalous trace of the stress-energy-momentum tensor for the Maxwell field and comment on the gauge dependence.

  5. Segmented nanowires displaying locally controllable properties

    DOE Patents [OSTI]

    Sutter, Eli Anguelova; Sutter, Peter Werner

    2013-03-05

    Vapor-liquid-solid growth of nanowires is tailored to achieve complex one-dimensional material geometries using phase diagrams determined for nanoscale materials. Segmented one-dimensional nanowires having constant composition display locally variable electronic band structures that are determined by the diameter of the nanowires. The unique electrical and optical properties of the segmented nanowires are exploited to form electronic and optoelectronic devices. Using gold-germanium as a model system, in situ transmission electron microscopy establishes, for nanometer-sized Au--Ge alloy drops at the tips of Ge nanowires (NWs), the parts of the phase diagram that determine their temperature-dependent equilibrium composition. The nanoscale phase diagram is then used to determine the exchange of material between the NW and the drop. The phase diagram for the nanoscale drop deviates significantly from that of the bulk alloy.

  6. Understanding water's anomalies with locally favored structures

    E-Print Network [OSTI]

    Russo, John

    2013-01-01

    Water is a complex structured liquid of hydrogen-bonded molecules that displays a surprising array of unusual properties, also known as water anomalies, the most famous being the density maximum at about $4^\\circ$C. The origin of these anomalies is still a matter of debate, and so far a quantitative description of water's phase behavior starting from the molecular arrangements is still missing. Here we provide a simple physical description from microscopic data obtained through computer simulations. We introduce a novel structural order parameter, which quantifies the degree of translational order of the second shell, and show that this parameter alone, which measures the amount of locally favored structures, accurately characterizes the state of water. A two-state modeling of these microscopic structures is used to describe the behavior of liquid water over a wide region of the phase diagram, correctly identifying the density and compressibility anomalies, and being compatible with the existence of a second ...

  7. Strong quantum scarring by local impurities

    E-Print Network [OSTI]

    Perttu J. J. Luukko; Byron Drury; Anna Klales; Lev Kaplan; Eric J. Heller; Esa Räsänen

    2015-12-07

    We discover and characterize strong quantum scars, or eigenstates resembling classical periodic orbits, in two-dimensional quantum wells perturbed by local impurities. These scars are not explained by ordinary scar theory, which would require the existence of short, moderately unstable periodic orbits in the perturbed system. Instead, they are supported by classical resonances in the unperturbed system and the resulting quantum near-degeneracy. Even in the case of a large number of randomly scattered impurities, the scars prefer distinct orientations that extremize the overlap with the impurities. We demonstrate that these preferred orientations can be used for highly efficient transport of quantum wave packets across the perturbed potential landscape. Assisted by the scars, wave-packet recurrences are significantly stronger than in the unperturbed system. Together with the controllability of the preferred orientations, this property may be very useful for quantum transport applications.

  8. Evaluating Environmental Influences Oxidation Kinetics by a

    E-Print Network [OSTI]

    Sparks, Donald L.

    -Oxide S A N J A I J . P A R I K H , * , B R A N D O N J . L A F F E R T Y , T E R R Y G . M E A D E , A N D D O N A L D L . S P A R K S Department of Land, Air and Water Resources, The University strategies for remediation of As-contaminated waters. In this study, the influence of goethite (R

  9. A Localization Method for the Internet of Things

    E-Print Network [OSTI]

    Chen, Zhikui; Huang, Tao; Bu, Fanyu; Wang, Haozhe

    2012-01-01

    Many localization algorithms and systems have been developed by means of wireless sensor networks for both indoor and outdoor environments. To achieve higher localization accuracy, extra hardware equipments are utilized by most of the existing localization solutions, which increase the cost and considerably limit the location-based applications. The Internet of Things (IOT) integrates many technologies, such as Internet, Zigbee, Bluetooth, infrared, WiFi, GPRS, 3G, etc, which can enable different ways to obtain the location information of various objects. Location-based service is a primary service of the IOT, while localization accuracy is a key issue. In this paper, a higher accuracy localization scheme is proposed which can effectively satisfy diverse requirements for many indoor and outdoor location services. The proposed scheme composes of two phases: 1) partition phase, in which the target region is split into small grids; 2) localization refinement phase, in which a higher accuracy of localization can ...

  10. Flooding countries and destroying dams

    E-Print Network [OSTI]

    Utrecht, Universiteit

    : lifting vertices and lowering vertices. For the former we show that all local minima in a terrain with n such as automatic drainage analysis, to do some kind of preprocessing of the terrain to remove these spurious sinks

  11. Influence of Mild Hybridization on Performance and emission in...

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

    Influence of Mild Hybridization on Performance and emission in a 4-Cylinder, In-Line Common Rail Diesel Engine Influence of Mild Hybridization on Performance and emission in a...

  12. Photo Gallery: Argonne OutLoud: "Invisible Influence: A Bacterial...

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

    Photo Gallery: Argonne OutLoud: "Invisible Influence: A Bacterial Guide to Your Health" Argonne OutLoud Invisible Influence: A Bacterial Guide to Your Health 1 of 10 Argonne...

  13. Model reduction of systems with localized nonlinearities.

    SciTech Connect (OSTI)

    Segalman, Daniel Joseph

    2006-03-01

    An LDRD funded approach to development of reduced order models for systems with local nonlinearities is presented. This method is particularly useful for problems of structural dynamics, but has potential application in other fields. The key elements of this approach are (1) employment of eigen modes of a reference linear system, (2) incorporation of basis functions with an appropriate discontinuity at the location of the nonlinearity. Galerkin solution using the above combination of basis functions appears to capture the dynamics of the system with a small basis set. For problems involving small amplitude dynamics, the addition of discontinuous (joint) modes appears to capture the nonlinear mechanics correctly while preserving the modal form of the predictions. For problems involving large amplitude dynamics of realistic joint models (macro-slip), the use of appropriate joint modes along with sufficient basis eigen modes to capture the frequencies of the system greatly enhances convergence, though the modal nature the result is lost. Also observed is that when joint modes are used in conjunction with a small number of elastic eigen modes in problems of macro-slip of realistic joint models, the resulting predictions are very similar to those of the full solution when seen through a low pass filter. This has significance both in terms of greatly reducing the number of degrees of freedom of the problem and in terms of facilitating the use of much larger time steps.

  14. Local gauge theory and coarse graining

    E-Print Network [OSTI]

    Jose A. Zapata

    2012-03-11

    Within the discrete gauge theory which is the basis of spin foam models, the problem of macroscopically faithful coarse graining is studied. Macroscopic data is identified; it contains the holonomy evaluation along a discrete set of loops and the homotopy classes of certain maps. When two configurations share this data they are related by a local deformation. The interpretation is that such configurations differ by "microscopic details". In many cases the homotopy type of the relevant maps is trivial for every connection; two important cases in which the homotopy data is composed by a set of integer numbers are: (i) a two dimensional base manifold and structure group U(1), (ii) a four dimensional base manifold and structure group SU(2). These cases are relevant for spin foam models of two dimensional gravity and four dimensional gravity respectively. This result suggests that if spin foam models for two-dimensional and four-dimensional gravity are modified to include all the relevant macroscopic degrees of freedom -the complete collection of macroscopic variables necessary to ensure faithful coarse graining-, then they could provide appropriate effective theories at a given scale.

  15. Implantable apparatus for localized heating of tissue

    DOE Patents [OSTI]

    Doss, J.D.

    1985-05-20

    With the object of repetitively treating deep-seated, inoperable tumors by hyperthermia as well as locally heating other internal tissue masses repetitively, a receiving antenna, transmission line and electrode arrangement are implanted completely within the patient's body, with the receiving antenna just under the surface of the skin and with the electrode arrangement being located so as to most effectively heat the tissue to be treated. An external, transmitting antenna, driven by an external radio-frequency energy source, is closely coupled to the implanted receiving antenna so that the energy coupled across the air-skin interface provides electromagnetic energy suitable for heating the tissue in the vicinity of the implanted electrodes. The resulting increase in tissue temperature may be estimated by an indirect measurement of the decrease in tissue resistivity in the heat region. This change in resistivity appears as a change in the loading of the receiving antenna which can be measured by either determining the change in the phase relationship between the voltage and the current appearing on the transmitting antenna or by measuring the change in the magnitude of the impedance thereof. Optionally, multiple electrode arrays may be activated or inactivated by the application of magnetic fields to operate implanted magnetic reed swtiches. 5 figs.

  16. Implantable apparatus for localized heating of tissue

    DOE Patents [OSTI]

    Doss, James D. (Los Alamos, NM)

    1987-01-01

    With the object of repetitively treating deep-seated, inoperable tumors by hyperthermia as well as locally heating other internal tissue masses repetitively, a receiving antenna, transmission line, and electrode arrangment are implanted completely within the patient's body, with the receiving antenna just under the surface of the skin and with the electrode arrangement being located so as to most effectively heat the tissue to be treated. An external, transmitting antenna, driven by an external radio-frequency energy source, is closely coupled to the implanted receiving antenna so that the energy coupled across the air-skin interface provides electromagnetic energy suitable for heating the tissue in the vicinity of the implanted electrodes. The resulting increase in tissue temperature may be estimated by an indirect measurement of the decrease in tissue resistivity in the heated region. This change in resistivity appears as a change in the loading of the receiving antenna which can be measured by either determining the change in the phase relationship between the voltage and the current appearing on the transmitting antenna or by measuring the change in the magnitude of the impedance thereof. Optionally, multiple electrode arrays may be activated or inactivated by the application of magnetic fields to operate implanted magnetic reed switches.

  17. Understanding shape entropy through local dense packing

    E-Print Network [OSTI]

    Greg van Anders; Daphne Klotsa; N. Khalid Ahmed; Michael Engel; Sharon C. Glotzer

    2014-10-28

    Entropy drives the phase behavior of colloids ranging from dense suspensions of hard spheres or rods to dilute suspensions of hard spheres and depletants. Entropic ordering of anisotropic shapes into complex crystals, liquid crystals, and even quasicrystals has been demonstrated recently in computer simulations and experiments. The ordering of shapes appears to arise from the emergence of directional entropic forces (DEFs) that align neighboring particles, but these forces have been neither rigorously defined nor quantified in generic systems. Here, we show quantitatively that shape drives the phase behavior of systems of anisotropic particles upon crowding through DEFs. We define DEFs in generic systems, and compute them for several hard particle systems. We show that they are on the order of a few kT at the onset of ordering, placing DEFs on par with traditional depletion, van der Waals, and other intrinsic interactions. In experimental systems with these other interactions, we provide direct quantitative evidence that entropic effects of shape also contribute to self-assembly. We use DEFs to draw a distinction between self-assembly and packing behavior. We show that the mechanism that generates directional entropic forces is the maximization of entropy by optimizing local particle packing. We show that this mechanism occurs in a wide class of systems, and we treat, in a unified way, the entropy-driven phase behavior of arbitrary shapes incorporating the well-known works of Kirkwood, Onsager, and Asakura and Oosawa.

  18. Dual mode stereotactic localization method and application

    DOE Patents [OSTI]

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

    2002-01-01

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

  19. Quantum reading under a local energy constraint

    E-Print Network [OSTI]

    Gaetana Spedalieri; Cosmo Lupo; Stefano Mancini; Samuel L. Braunstein; Stefano Pirandola

    2015-09-03

    Nonclassical states of light play a central role in many quantum information protocols. Their quantum features have been exploited to improve the readout of information from digital memories, modelled as arrays of microscopic beam splitters [S. Pirandola, Phys. Rev. Lett. 106, 090504 (2011)]. In this model of quantum reading, a nonclassical source of light with Einstein-Podolski-Rosen correlations has been proven to retrieve more information than any classical source. In particular, the quantum-classical comparison has been performed under a global energy constraint, i.e., by fixing the mean total number of photons irradiated over each memory cell. In this paper we provide an alternative analysis which is based on a local energy constraint, meaning that we fix the mean number of photons per signal mode irradiated over the memory cell. Under this assumption, we investigate the critical number of signal modes after which a nonclassical source of light is able to beat any classical source irradiating the same number of signals.

  20. Edge-localized-modes in tokamaks

    SciTech Connect (OSTI)

    Leonard, A. W.

    2014-09-15

    Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM instability grows explosively, rapidly transporting energy and particles onto open field lines and material surfaces. Though ELMs provide additional particle and impurity transport through the H-mode transport barrier, enabling steady operation, the resulting heat flux transients to plasma facing surfaces project to large amplitude in future low collisionality burning plasma tokamaks. Measurements of the ELM heat flux deposition onto material surfaces in the divertor and main chamber indicate significant broadening compared to inter-ELM heat flux, with a timescale for energy deposition that is consistent with sonic ion flow and numerical simulation. Comprehensive ELM simulation is highlighting the important physics processes of ELM transport including parallel transport due to magnetic reconnection and turbulence resulting from collapse of the H-mode transport barrier. Encouraging prospects for ELM control and/or suppression in future tokamaks include intrinsic modes of ELM free operation, ELM triggering with frequent small pellet injection and the application of 3D magnetic fields.

  1. The local potential approximation in quantum gravity

    E-Print Network [OSTI]

    Dario Benedetti; Francesco Caravelli

    2012-10-09

    Within the context of the functional renormalization group flow of gravity, we suggest that a generic f(R) ansatz (i.e. not truncated to any specific form, polynomial or not) for the effective action plays a role analogous to the local potential approximation (LPA) in scalar field theory. In the same spirit of the LPA, we derive and study an ordinary differential equation for f(R) to be satisfied by a fixed point of the renormalization group flow. As a first step in trying to assess the existence of global solutions (i.e. true fixed point) for such equation, we investigate here the properties of its solutions by a comparison of various series expansions and numerical integrations. In particular, we study the analyticity conditions required because of the presence of fixed singularities in the equation, and we develop an expansion of the solutions for large R up to order N=29. Studying the convergence of the fixed points of the truncated solutions with respect to N, we find a characteristic pattern for the location of the fixed points in the complex plane, with one point stemming out for its stability. Finally, we establish that if a non-Gaussian fixed point exists within the full f(R) approximation, it corresponds to an R^2 theory.

  2. Local Group surveys for Planetary Nebulae

    E-Print Network [OSTI]

    Laura Magrini

    2006-05-09

    The Local Group (LG) represents the best environment to study in detail the PN population in a large number of morphological types of galaxies. The closeness of the LG galaxies allows to investigate the faintest side of the PN luminosity function and to detect PNe also in the less luminous galaxies, the dwarf galaxies, where a small number of them is expected. A review of the results of the most recent imaging surveys in the LG is presented. Some applications of the surveys for PNe to the study of the star formation history of the host galaxies are analyzed. In addition, these new observational data are an invaluable resource for follow-up spectroscopy to derive the chemical properties of not only PNe, but also other important emission-line sources like HII regions. These are fundamental tools for the discussion of the chemical evolution of the host galaxies, mapping the history of their chemical enrichment at different epochs. The latest results on this subject are presented.

  3. Localized precipitation and runoff on Mars

    E-Print Network [OSTI]

    Kite, Edwin S; Rafkin, Scot; Manga, Michael; Dietrich, William E

    2010-01-01

    We use the Mars Regional Atmospheric Modeling System (MRAMS) to simulate lake storms on Mars, finding that intense localized precipitation will occur for lake size >=10^3 km^2. Mars has a low-density atmosphere, so deep convection can be triggered by small amounts of latent heat release. In our reference simulation, the buoyant plume lifts vapor above condensation level, forming a 20km-high optically-thick cloud. Ice grains grow to 200 microns radius and fall near (or in) the lake at mean rates up to 1.5 mm/hr water equivalent (maximum rates up to 6 mm/hr water equivalent). Because atmospheric temperatures outside the surface layer are always well below 273K, supersaturation and condensation begin at low altitudes above lakes on Mars. In contrast to Earth lake-effect storms, lake storms on Mars involve continuous precipitation, and their vertical velocities and plume heights exceed those of tropical thunderstorms on Earth. Convection does not reach above the planetary boundary layer for lakes O(10^2) mbar. In...

  4. Local environment of Mn in Mn delta-doped Si layers

    SciTech Connect (OSTI)

    Xiao, Q.F.; Kahwaji, S.; Monchesky, T.L.; Gordon, R.A.; Crozier, E.D.

    2009-11-09

    Dilute magnetic semiconductors combine both magnetic ordering and semiconducting behaviour, leading to potential spintronic applications. Silicon containing dilute Mn impurities is a potential dilute magnetic semiconductor. We have grown Mn delta-doped films by deposition of 0.7 of a monolayer of Mn on Si(001) by molecular beam epitaxy and capping the film with Si. The magnetic properties are likely sensitive to the distribution of Mn on substitutional or interstitial sites and the formation of metallic precipitates. We have used polarization-dependent XAFS to examine the local structure. We compare to a thicker MnSi film grown on Si(111) and also examine the influence of lead on the manganese environment when used as a surfactant in the growth process.

  5. Impact of intrinsic localized modes of atomic motion on materials properties

    SciTech Connect (OSTI)

    Manley, M E

    2010-01-20

    Recent neutron and x-ray scattering measurements show intrinsic localized modes (ILMs) in metallic uranium and ionic sodium iodide. Here, the role ILMs play in the behavior of these materials is examined. With the thermal activation of ILMs, thermal expansion is enhanced, made more anisotropic, and, at a microscopic level, becomes inhomogeneous. Interstitial diffusion, ionic conductivity, the annealing rate of radiation damage, and void growth are all influenced by ILMs. The lattice thermal conductivity is suppressed above the ILM activation temperature while no impact is observed in the electrical conductivity. This complement of transport properties suggests that ILMs could improve thermoelectric performance. Ramifications also include thermal ratcheting, a transition from brittle to ductile fracture, and possibly a phase transformation in uranium.

  6. Influence of Manufacturing Processes and Microstructures on the Performance and Manufacturability of Advanced High Strength Steels

    SciTech Connect (OSTI)

    Choi, Kyoo Sil; Liu, Wenning N.; Sun, Xin; Khaleel, Mohammad A.

    2009-10-01

    Advanced high strength steels (AHSS) are performance-based steel grades and their global material properties can be achieved with various steel chemistries and manufacturing processes, leading to various microstructures. In this paper, we investigate the influence of supplier variation and resulting microstructure difference on the overall mechanical properties as well as local formability behaviors of advanced high strength steels (AHSS). For this purpose, we first examined the basic material properties and the transformation kinetics of TRansformation Induced Plasticity (TRIP) 800 steels from three different suppliers under different testing temperatures. The experimental results show that there is a significant supplier (i.e., manufacturing process) dependency of the TRIP 800 steel mechanical and microstructure properties. Next, we examined the local formability of two commercial Dual Phase (DP) 980 steels during stamping process. The two commercial DP 980 steels also exhibit noticeably different formability during stamping process in the sense that one of them shows severe tendency for shear fracture. Microstructure-based finite element analyses are carried out next to simulate the localized deformation process with the two DP 980 microstructures, and the results suggest that the possible reason for the difference in formability lies in the morphology of the hard martensite phase in the DP microstructure.

  7. Probing Spin-Relaxation Anisotropy in 1D InSb Wires by Weak Anti-Localization

    SciTech Connect (OSTI)

    Jayathilaka, P. A. R. D.; Cairns, S.; Keay, J.; Murphy, S. Q.; Gaspe, C. K.; Mishima, T. D.; Santos, M. B. [Homer L. Dodge Department of Physics and Astronomy, Center for Semiconductor Physics in Nanostructures (C-SPIN), University of Oklahoma, Norman, OK (United States)

    2011-12-26

    Arrays of quasi-one-dimensional wires were fabricated in symmetrically doped AlInSb/InSb heterostructures to investigate the dimensional suppression of electron spin relaxation. Using weak localization analysis, it was discovered that the spin relaxation length in 300nm wide wires was enhanced by 40% relative to the two-dimensional value. Moreover, wires aligned along the <100> direction showed spin relaxation lengths {approx}30% longer than for wires aligned along <110>. This anisotropy is consistent with the additional influence of the cubic Dresselhaus interaction along the <110> direction which is predicted to be unaffected by dimensional confinement.

  8. Effect of local filtering on Freezing Phenomena of Quantum Correlation

    E-Print Network [OSTI]

    Sumana Karmakar; Ajoy Sen; Amit Bhar; Debasis Sarkar

    2015-04-20

    General quantum correlations measures like quantum discord, one norm geometric quantum discord, exhibit freezing, sudden change, double sudden change behavior in their decay rates under different noisy channels. Therefore, one may attempt to investigate how the freezing behavior and other dynamical features are affected under application of local quantum operations. In this work, we demonstrate the effect of local filtering on the dynamical evolution of quantum correlations. We have found that using local filtering one may remove freezing depending upon the filtering parameter.

  9. A Linear Circuit Model For Social Influence Analysis

    E-Print Network [OSTI]

    Xiang, Biao; Liu, Qi; Xiong, Hui

    2012-01-01

    Understanding the behaviors of information propagation is essential for the effective exploitation of social influence in social networks. However, few existing influence models are both tractable and efficient for describing the information propagation process and quantitatively measuring social influence. To this end, in this paper, we develop a linear social influence model, named Circuit due to its close relation to the circuit network. Based on the predefined four axioms of social influence, we first demonstrate that our model can efficiently measure the influence strength between any pair of nodes. Along this line, an upper bound of the node(s)' influence is identified for potential use, e.g., reducing the search space. Furthermore, we provide the physical implication of the Circuit model and also a deep analysis of its relationships with the existing methods, such as PageRank. Then, we propose that the Circuit model provides a natural solution to the problems of computing each single node's authority a...

  10. Spurring Local Economic Development with Clean Energy Investments

    Broader source: Energy.gov [DOE]

    This presentation, given through the DOE's Technical Assitance Program (TAP), provides information on Spurring Local Economic Development with Clean Energy Investments.

  11. Modeling fluid flow in deformation bands with stabilized localization...

    Office of Scientific and Technical Information (OSTI)

    Modeling fluid flow in deformation bands with stabilized localization mixed finite elements. Citation Details In-Document Search Title: Modeling fluid flow in deformation bands...

  12. A Characterization Theorem for Local Operators in Factorizing Scattering Models

    E-Print Network [OSTI]

    Daniela Cadamuro

    2012-11-15

    In quantum field theory, the rigorous construction of local observables in the presence of nontrivial interaction is a crucial problem. In a class of integrable quantum field theories, a very abstract existence proof has recently been given by Lechner. We give an explicit characterization of these local observables in terms of the properties of the coefficient functions in an expansion by interacting creators and annihilators. Some results on the operator domains of these local observables are given. Using these, we constructed explicit examples of local observables in the quantum Ising model.

  13. SEE Action Series: Local Strategies for Whole-Building Energy...

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

    TAP Webinar eere.energy.gov The Parker Ranch installation in Hawaii DOE Technical Assistance Program SEE Action Series: Local Strategies for Whole-Building Energy Savings Molly...

  14. Local Leaders: Prepare for an Energy Emergency | Department of...

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

    Identify local energy providers-These may include the ownersoperators of power plants, electric transmission and distribution lines, natural gas, crude oil, and petroleum...

  15. The Local Board of Health Environmental Health Primer

    E-Print Network [OSTI]

    The Local Board of Health Environmental Health Primer Risk Assessment Factsheet environmental health Background · Localpublichealthprotectionrequiresidentifyingandprioritizingneedsthroughrisk.Environmentalandhealthdepartmentofficialsshould developcommunity-specificcriteriaforconductingtheriskmanagementphaseof hazardandriskreduction. Board of Health

  16. Wind Turbine Manufacturers in the U. S.: Locations and Local...

    Wind Powering America (EERE)

    Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Wind Turbine Manufacturers in the U.S.: Locations and Local Impacts WINDPOWER 2010 Conference...

  17. Retro-Commissioning for State and Local Governments

    SciTech Connect (OSTI)

    Existing Commercial Buildings Working Group

    2012-05-23

    Describes how state and local governments can lead by example by retro-commissioning their own buildings and adopting retro-commissioning policies for the private sector.

  18. Energy Benchmarking, Rating, and Disclosure for Local Governments

    SciTech Connect (OSTI)

    Existing Commercial Buildings Working Group

    2012-05-23

    Provides information on how access to energy use data can help local governments create policies for benchmarking and disclosing building energy performance for public and private sector buildings.

  19. Recovery Act: Local Energy Assurance Planning Initiatives | Department...

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

    will help ensure local governments can recover and restore power quickly following any energy supply disruptions. PRESS RELEASES February 19, 2010 Secretary Chu Announces Over...

  20. Federal, State, and Local Coordination | Department of Energy

    Energy Savers [EERE]

    Agency (EPA), DOD's Combatant Commanders (COCOMs), Housing and Urban Development (HUD), Nuclear Regulatory Commission (NRC), USAID, and others. StateLocalTribal...

  1. Local Scouts Train with Hanford Safety Experts - 52 Boy Scouts...

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

    Squeeze, Sweep, or PASS, fire extinguishing technique at the Volpentest HAMMER Training & Education Center in Richland. Hanford workers volunteered to educate local Boy Scouts...

  2. Skeletal muscle biomechanics drives intramuscular transport of locally delivered drugs

    E-Print Network [OSTI]

    Wu, Peter I-Kung

    2007-01-01

    Introduction: Effective local drug delivery to contractile tissues such as skeletal muscle requires a thorough understanding of the impact of mechanical loads on intramuscular pharmacokinetics. Current preparations for ...

  3. Local FIRST robotics teams dominate regionals, advance to world...

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

    2011 2010 News Home | ORNL | News | Features | 2013 SHARE News Feature Local FIRST robotics teams dominate regionals, advance to world championship UT-Battelle continues third...

  4. Why Cogeneration? 24MW of local renewable energy

    E-Print Network [OSTI]

    Why Cogeneration? · 24MW of local renewable energy · Reduced emissions and cleaner air · Retain 300 Wood Chips Sawdust Pulp Paper Emissions Production #12;Port Townsend Paper - Cogeneration Biomass

  5. ENERGY INVESTMENT PARTNERSHIPS: HOW STATE AND LOCAL GOVERNMENTS...

    Energy Savers [EERE]

    AND LOCAL GOVERNMENTS ARE ENGAGING PRIVATE CAPITAL TO DRIVE CLEAN ENERGY INVESTMENTS Energy Investment Partnerships-sometimes referred to as Green Banks--are newly emerging...

  6. Colorado/Transmission/Local Regulations | Open Energy Information

    Open Energy Info (EERE)

    law, Colorado counties and municipalities are given broad authority to plan for and regulate the use of land within their jurisdictions.1 State statutes give local governments...

  7. Overview of the State and Local Energy Efficiency Action Network

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

    Overview of the State and Local Energy Efficiency Action Network Johanna Zetterberg Coordinator, SEE Action Network US Department of Energy Achieving the Potential * EE remains one...

  8. Locality Aware Dynamic Load Management for Massively Multiplayer Games

    E-Print Network [OSTI]

    Amza, Cristiana

    Locality Aware Dynamic Load Management for Massively Multiplayer Games Jin Chen Department with a dynamic load management algorithm enables us to better handle transient crowding by adaptively dispersing

  9. THE LEX-PLUS-POWER INEQUALITY FOR LOCAL COHOMOLOGY ...

    E-Print Network [OSTI]

    2013-03-11

    We prove an inequality between Hilbert functions of local cohomology modules supported in the homogeneous maximal ideal of standard graded algebras over

  10. Local Option - Contractual Assessments for Renewable Energy and...

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

    locally State Illinois Program Type PACE Financing Summary Note: In 2010, the Federal Housing Finance Agency (FHFA), which has authority over mortgage underwriters Fannie Mae and...

  11. Local Option - Clean Energy Loan Program | Department of Energy

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

    locally State Maryland Program Type PACE Financing Summary Note: In 2010, the Federal Housing Finance Agency (FHFA), which has authority over mortgage underwriters Fannie Mae and...

  12. Local Option - Improvement Districts for Energy Efficiency and...

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

    locally State Colorado Program Type PACE Financing Summary Note: In 2010, the Federal Housing Finance Agency (FHFA), which has authority over mortgage underwriters Fannie Mae and...

  13. State and Local Code Implementation: Northeast Region - 2014...

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

    South-central Region - 2014 BTO Peer Review Building Energy Codes Program - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review...

  14. State and Local Code Implementation: State Energy Officials ...

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

    State Energy Officials - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review Presenter: Chris Wagner, National Association of...

  15. Local Uniqueness for the Fixed Energy Fixed Angle Inverse Problem ...

    E-Print Network [OSTI]

    Abstract. We prove local uniqueness for the inverse problem in obstacle scattering at a fixed energy and fixed incident angle. We consider the inverse problem of ...

  16. Solar Powering Your Community: A Guide for Local Governments (Book)

    SciTech Connect (OSTI)

    2011-01-01

    DOE designed this guide—Solar Powering Your Community: A Guide for Local Governments—to assist local government officials and stakeholders in designing and implementing strategic local solar plans. The 2011 edition contains the most recent lessons and successes from the 25 Solar America Cities and other communities promoting solar energy. Because DOE recognizes that there is no one path to solar market development, this guide introduces a range of policy and program options that can help a community build a local solar infrastructure.

  17. Concentration Independent Modulation of Local Micromechanics in a Fibrin Gel

    E-Print Network [OSTI]

    2011-01-01

    Sun SX, Wirtz D (2008) Mapping local matrix remodeling induced by a migrating tumor cell using three-dimensional multiple-particle tracking.

  18. The Cryptographic Hardness of Random Local Functions Benny Applebaum

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Inversion 2 3.1 Failure of "Myopic" Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 of Local Low-Bias Generators . . . . . . . . . . . . . . . . . . . . 17 4.3 Distinguishing vs

  19. New Energy Department Team Established to Help Local Authorities...

    Energy Savers [EERE]

    need assistance from state and local officials in restoring power or securing supplies of gasoline following Hurricane Sandy. Station owners or operators can now call the...

  20. Hydrogen local vibrational modes in semiconductors

    SciTech Connect (OSTI)

    McCluskey, M D

    1997-06-01

    Following, a review of experimental techniques, theory, and previous work, the results of local vibrational mode (LVM) spectroscopy on hydrogen-related complexes in several different semiconductors are discussed. Hydrogen is introduced either by annealing in a hydrogen ambient. exposure to a hydrogen plasma, or during growth. The hydrogen passivates donors and acceptors in semiconductors, forming neutral complexes. When deuterium is substituted for hydrogen. the frequency of the LVM decreases by approximately the square root of two. By varying the temperature and pressure of the samples, the microscopic structures of hydrogen-related complexes are determined. For group II acceptor-hydrogen complexes in GaAs, InP, and GaP, hydrogen binds to the host anion in a bond-centered orientation, along the [111] direction, adjacent to the acceptor. The temperature dependent shift of the LVMs are proportional to the lattice thermal energy U(T), a consequence of anharmonic coupling between the LVM and acoustical phonons. In the wide band gap semiconductor ZnSe, epilayers grown by metalorganic chemical vapor phase epitaxy (MOCVD) and doped with As form As-H complexes. The hydrogen assumes a bond-centered orientation, adjacent to a host Zn. In AlSb, the DX centers Se and Te are passivated by hydrogen. The second, third, and fourth harmonics of the wag modes are observed. Although the Se-D complex has only one stretch mode, the Se-H stretch mode splits into three peaks. The anomalous splitting is explained by a new interaction between the stretch LVM and multi-phonon modes of the lattice. As the temperature or pressure is varied, and anti-crossing is observed between LVM and phonon modes.

  1. Landscape Engineering: removing local traps in the chopped random basis optimization

    E-Print Network [OSTI]

    Niklas Rach; Matthias M. Müller; Tommaso Calarco; Simone Montangero

    2015-06-15

    In quantum optimal control theory the success of an optimization algorithm is highly influenced by how the figure of merit to be optimized behaves as a function of the control field, i.e. by the control landscape. Constraints on the control field introduce local minima in the landscape --traps-- which might prevent an efficient solution of the optimal control problem. The Chopped Random Basis (CRAB) optimal control algorithm is constructed to improve the optimization efficiency by introducing an expansion of the control field onto a truncated basis, that is, it works with a limited control field bandwidth. We study the influence of traps on the success probability of CRAB and extend the original algorithm to engineer the landscape in order to eliminate the traps; we demonstrate that this development exploits the advantages of both (unconstrained) gradient algorithms and of truncated basis methods. Finally, we characterize the behavior of the extended CRAB under additional constraints and show that for reasonable constraints the convergence properties are still maintained.

  2. Variation of Solar Attenuation with Height in CAPLTER The atmosphere over rural and urbanized areas differs in many ways in relation to terrain influences and human-induced variations (e.g., heat, humidity, wind, and pollution). The sun's energy penetrate

    E-Print Network [OSTI]

    Hall, Sharon J.

    on amounts of solar energy that are accumulated at any given time. These controls range from extraterrestrial of variability cascade into plant productivity, solar energy technology, and urban climate processes, in generalVariation of Solar Attenuation with Height in CAPLTER Abstract The atmosphere over rural

  3. Local implementations of non-local quantum gates in linear entangled channel

    E-Print Network [OSTI]

    Debashis Saha; Sanket Nandan; Prasanta K. Panigrahi

    2014-08-03

    In this paper, we demonstrate n-party controlled unitary gate implementations locally on arbitrary remote state through linear entangled channel where control parties share entanglement with the adjacent control parties and only one of them shares entanglement with the target party. In such a network, we describe the protocol of simultaneous implementation of controlled-Hermitian gate starting from three party scenario. We also explicate the implementation of three party controlled-Unitary gate, a generalized form of To?oli gate and subsequently generalize the protocol for n-party using minimal cost.

  4. Development of flexible, free-standing, thin films for additive manufacturing and localized energy generation

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

    Clark, Billy; McCollum, Jena; Pantoya, Michelle L.; Heaps, Ronald J.; Daniels, Michael A.

    2015-08-01

    Film energetics are becoming increasingly popular because a variety of technologies are driving a need for localized energy generation in a stable, safe and flexible form. Aluminum (Al) and molybdenum trioxide (MoO?) composites were mixed into a silicon binder and extruded using a blade casting technique to form flexible free-standing films ideal for localized energy generation. Since this material can be extruded onto a surface it is well suited to additive manufacturing applications. This study examines the influence of 0-35% by mass potassium perchlorate (KClO?) additive on the combustion behavior of these energetic films. Without KClO? the film exhibits thermalmore »instabilities that produce unsteady energy propagation upon reaction. All films were cast at a thickness of 1 mm with constant volume percent solids to ensure consistent rheological properties. The films were ignited and flame propagation was measured. The results show that as the mass percent KClO? increased, the flame speed increased and peaked at 0.43 cm/s and 30 wt% KClO?. Thermochemical equilibrium simulations show that the heat of combustion increases with increasing KClO? concentration up to a maximum at 20 wt% when the heat of combustion plateaus, indicating that the increased chemical energy liberated by the additional KClO? promotes stable energy propagation. Differential scanning calorimeter and thermogravimetric analysis show that the silicone binder participates as a fuel and reacts with KClO? adding energy to the reaction and promoting propagation.« less

  5. Fracture initiation by local brittle zones in weldments of quenched and tempered structural alloy steel plate

    SciTech Connect (OSTI)

    Kenney, K.L.; Reuter, W.G.; Reemsnyder, H.S.; Matlock, D.K.

    1997-12-31

    The heat-affected zone (HAZ) embrittlement of an API 2Y Grade 50T quenched and tempered offshore structural steel plate, welded by the submerged-arc process at a heat input of 4.5 kJ/mm, was investigated from the viewpoint of identifying the local brittle zone (LBZ) microstructure and the metallurgical factors associated with its formation. Microstructural and fractographic analysis showed the LBZ microstructure to be dual phase martensite-austenite (M-A) constituent. The formation of M-A constituent was found to be related to microstructural banding of the hot-rolled base plate. When the banded base plate was welded, M-A constituent formed only within the band microstructure which penetrated the intercritically-reheated coarse-grain HAZ (IRCGHAZ). The chemistry of the band microstructure in conjunction with the thermal cycle of the IRCGHAZ provided the critical conditions for the formation of M-A constituent in the API 2Y Grade 50T steel investigated. The influence of local brittle zones (i.e., M-A constituent) on the HAZ fracture toughness was evaluated by means of Crack-Tip Opening Displacement (CTOD) tests. These tests showed the steel to suffer embrittlement when the fatigue precrack sampled an intercritically-reheated coarse-grain HAZ which contained M-A constituent, confirming that M-A constituent is the major microstructural factor controlling the HAZ toughness of this particular steel.

  6. Development of flexible, free-standing, thin films for additive manufacturing and localized energy generation

    SciTech Connect (OSTI)

    Clark, Billy; McCollum, Jena; Pantoya, Michelle L.; Heaps, Ronald J.; Daniels, Michael A.

    2015-08-01

    Film energetics are becoming increasingly popular because a variety of technologies are driving a need for localized energy generation in a stable, safe and flexible form. Aluminum (Al) and molybdenum trioxide (MoO?) composites were mixed into a silicon binder and extruded using a blade casting technique to form flexible free-standing films ideal for localized energy generation. Since this material can be extruded onto a surface it is well suited to additive manufacturing applications. This study examines the influence of 0-35% by mass potassium perchlorate (KClO?) additive on the combustion behavior of these energetic films. Without KClO? the film exhibits thermal instabilities that produce unsteady energy propagation upon reaction. All films were cast at a thickness of 1 mm with constant volume percent solids to ensure consistent rheological properties. The films were ignited and flame propagation was measured. The results show that as the mass percent KClO? increased, the flame speed increased and peaked at 0.43 cm/s and 30 wt% KClO?. Thermochemical equilibrium simulations show that the heat of combustion increases with increasing KClO? concentration up to a maximum at 20 wt% when the heat of combustion plateaus, indicating that the increased chemical energy liberated by the additional KClO? promotes stable energy propagation. Differential scanning calorimeter and thermogravimetric analysis show that the silicone binder participates as a fuel and reacts with KClO? adding energy to the reaction and promoting propagation.

  7. Quantum non-locality and information security Muhammad Nadeem

    E-Print Network [OSTI]

    1 Quantum non-locality and information security Muhammad Nadeem Department of Basic Sciences-locality, as discussed here, is sufficient to achieve unconditional information security without requiring advanced, integrity, authenticity and availability of information to legitimate users. These information security

  8. Local Harmonic Estimation in Musical Sound Rafael A. IRIZARRY

    E-Print Network [OSTI]

    Irizarry, Rafael A.

    Local Harmonic Estimation in Musical Sound Signals Rafael A. IRIZARRY Statistical modeling so a local harmonic model that tracks changes in pitch and in the amplitudes of the harmonics is fit estimates of the harmonic signal and of the noise signal. Different musical composition applications may

  9. Determination of the Acceptable Room Temperature Range for Local Cooling 

    E-Print Network [OSTI]

    Zhang, Y.; Zhao, R.

    2006-01-01

    exposed to local cooling airflow, where temperatures were 22, 25 and 28°C. Thirty randomly-selected male subjects, dressed in shorts, were exposed to each condition for 30 minutes. Data were collected on their local thermal sensations of each body part...

  10. Local Deformations of Polymers with Nonplanar Rigid Main-Chain

    E-Print Network [OSTI]

    Dinner, Aaron

    Local Deformations of Polymers with Nonplanar Rigid Main-Chain Internal Coordinates AARON R. DINNER: A procedure for local deformation of a polymer by concerted rotation of several main-chain dihedral angles has of an RNA hairpin loop in which the main chain (C3 --C4 ) bonds that are constrained by the sugar rings

  11. THE RATIONAL COHOMOLOGY OF A p-LOCAL COMPACT GROUP

    E-Print Network [OSTI]

    Oliver, Bob

    . Classifying space, p-completion, p-local compact group* *s, fusion. C. Broto is partially supported THE RATIONAL COHOMOLOGY OF A p-LOCAL COMPACT GROUP* *aces of compact Lie groups and p-compact groups, and generalises the earlier concept* * of p

  12. Localized temperature stability of low temperature cofired ceramics

    SciTech Connect (OSTI)

    Dai, Steven Xunhu

    2013-11-26

    The present invention is directed to low temperature cofired ceramic modules having localized temperature stability by incorporating temperature coefficient of resonant frequency compensating materials locally into a multilayer LTCC module. Chemical interactions can be minimized and physical compatibility between the compensating materials and the host LTCC dielectrics can be achieved. The invention enables embedded resonators with nearly temperature-independent resonance frequency.

  13. RESEARCH ARTICLE Topography-mediated controls on local vegetation

    E-Print Network [OSTI]

    Teskey, Robert O.

    RESEARCH ARTICLE Topography-mediated controls on local vegetation phenology estimated from MODIS patterns of phenology in humid temperate forest as a function of topography. Moderate-resolution imaging spectro- radiometer (MODIS) vegetation indices are used to derive local patterns of topography

  14. The Local Board of Health Environmental Health Primer

    E-Print Network [OSTI]

    The Local Board of Health Environmental Health Primer Epidemiology Factsheet environmental health,case-control,andcohortstudiesandare designedtotesthypothesesregardingthefactorsthatcauseadisease. Board of Health Actions · EncourageenvironmentalhealthpersonneltobecomefamiliarwiththesystemsDefenseScorecards.Availableatwww.scorecard.org · Friis,R.(2007).EnvironmentalEpidemiology.InEssentials of Environmental Health. · NationalAssociationofLocalBoardsofHealth

  15. INTEGRATING LOCAL AND GLOBAL ROUTING ON SCALE-FREE NETWORKS

    E-Print Network [OSTI]

    ±cient. The transport e±ciency can be improved by using some local information, such as the geographical locationINTEGRATING LOCAL AND GLOBAL ROUTING ON SCALE-FREE NETWORKS CUN-LAI PU* School of Information Department of Physics, Northeastern University Boston MA 02115, USA Center for Cancer Systems Biology Dana

  16. DAMAGE LOCALIZATION IN PLATES USING DLVs Dionisio Bernal1

    E-Print Network [OSTI]

    Bernal, Dionisio

    DAMAGE LOCALIZATION IN PLATES USING DLVs Dionisio Bernal1 and Ariel Levy2 Department of Civil Associate Professor, 2 Graduate Student ABSTRACT The performance of a technique to localize damage based on the computation of load vectors that create stress fields that bypass the damaged region is investigated

  17. Designing Truthful Spectrum Double Auctions with Local Markets

    E-Print Network [OSTI]

    Li, Baochun

    Designing Truthful Spectrum Double Auctions with Local Markets Wei Wang, Student Member, IEEE, Ben pieces in the market. We design a spectrum double auction that incorporates such locality in spectrum markets, while keeping the auction economically robust and computationally efficient. Our designs

  18. Improving Cost Calculations for Global Constraints in Local Search

    E-Print Network [OSTI]

    Rossi, Francesca

    Improving Cost Calculations for Global Constraints in Local Search Markus Bohlin Swedish Institute- straint satisfaction is based on local minimization of a cost function, which is usually the number equivalent to a set of basic constraints but still contributes as little to the cost as a single basic

  19. A Theory of Locally Low Dimensional Light Transport Dhruv Mahajan

    E-Print Network [OSTI]

    Columbia University

    A Theory of Locally Low Dimensional Light Transport Dhruv Mahajan Columbia University Ira: Complex lighting effects like soft shadows require transport matrices that have a very high rank by using our framework to adaptively subdivide the image into local patches. The adaptive subdivision

  20. Pond Management 1 Gilchrist 4-H Partners with Local 1

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    Pond Management 1 Gilchrist 4-H Partners with Local 1 SWAT Clubs Optimizing Peanut Harvest 2 On My Faculty 7 Resignation 7 OCTOBER 2010 Table of Contents Pond Management 1 Gilchrist 4-H Partners with Local and Waterways Management Reeling Em' In!! 7 New Faculty 7 Resignation 7 Pond Management In Northeast Florida

  1. Multi-robot Simultaneous Localization and Mapping using Particle Filters

    E-Print Network [OSTI]

    Del Moral , Pierre

    Multi-robot Simultaneous Localization and Mapping using Particle Filters Andrew Howard NASA Jet Propulsion Laboratory Pasadena, California 91109, U.S.A. Email: abhoward@robotics.jpl.nasa.gov Abstract-- This paper describes an on-line algorithm for multi- robot simultaneous localization and mapping (SLAM). We

  2. Topical Locality in the Web Brian D. Davison

    E-Print Network [OSTI]

    Davison, Brian D.

    University of New Jersey New Brunswick, NJ 08903 USA davison@cs.rutgers.edu Abstract Most web pages topical locality mirrors spatial locality of pages on the Web. In partic- ular, we find pages. These results show the foundations necessary for the success of many web systems, including

  3. Topical Locality in the Web Brian D. Davison

    E-Print Network [OSTI]

    Davison, Brian D.

    University of New Jersey New Brunswick, NJ 08903 USA davison@cs.rutgers.edu Abstract Most web pages topical locality mirrors spatial locality of pages on the Web. In partic­ ular, we find pages. These results show the foundations necessary for the success of many web systems, including

  4. Organizing and Strategizing a Local/Regional Solar Effort

    Broader source: Energy.gov [DOE]

    This webinar, "Organizing and Strategizing A Local/Regional Solar Effort," was originally presented on June 14, 2013 as part of the DOE SunShot Initiative's Solar Action Webinar Series. This includes presentations by a number of the program's grant partners, including three cities and one corporate partner, to provide participants' perspectives and present their local solar strategies.

  5. Adhesivity is not enough: Local Church-Rosser revisited

    E-Print Network [OSTI]

    Baldan, Paolo

    Adhesivity is not enough: Local Church-Rosser revisited Paolo Baldan1 , Fabio Gadducci2 , and Pawel Abstract. Adhesive categories provide an abstract setting for the double- pushout approach to rewriting, including the local Church-Rosser theorem, can be proven in adhesive categories, provided that one restricts

  6. Feasibility Grids for Localization and Mapping in Crowded Urban Scenes

    E-Print Network [OSTI]

    Wang, Chieh-Chih "Bob"

    the feasibility grids in localization yields performance improvements over the occupancy grids, particularlyFeasibility Grids for Localization and Mapping in Crowded Urban Scenes Shao-Wen Yang and Chieh is typically dynamic. We propose the feasibility grids to facilitate the representation of both the static

  7. Local Monitoring and Maintenance for Operational Wireless Sensor

    E-Print Network [OSTI]

    Wu, Jie

    Local Monitoring and Maintenance for Operational Wireless Sensor Networks Md Zakirul Alam Bhuiyan@gmail.com; csgjwang@gmail.com #12;Local Monitoring and Maintenance for Operational Wireless Sensor Networks 16 Monitoring and Maintenance for Operational Wireless Sensor Networks 16/7/2013 IEEE ISPA-13, Melbourne

  8. Local Lyapunov Functions for periodic and finite-time ODEs

    E-Print Network [OSTI]

    Hafstein, Sigurður Freyr

    Local Lyapunov Functions for periodic and finite-time ODEs Peter Giesl and Sigurdur Hafstein Abstract Lyapunov functions for general systems are difficult to construct. How- ever, for autonomous Lyapunov function by solving a matrix equa- tion. Consequently, the same function is a local Lyapunov

  9. Local and Global Casimir Energies for a Semitransparent Cylindrical Shell

    E-Print Network [OSTI]

    Milton, Kim

    Local and Global Casimir Energies for a Semitransparent Cylindrical Shell In´es Cavero-Pel´aez and Kimball A. Milton Oklahoma Center for High-Energy Physics and Homer L. Dodge Department of Physics University, Waco, TX 76798 (Dated: September 5, 2006) Abstract The local Casimir energy density

  10. Business Plans Classification with Locally Pruned Lazy Learning Models

    E-Print Network [OSTI]

    Verleysen, Michel

    1 Business Plans Classification with Locally Pruned Lazy Learning Models Antti Sorjamaa1 , Amaury linéaire par morceaux connue sous le nom de Locally Pruned Lazy Learning Model. Mots clefs : Lazy Learning, Classification, Leave-one-Out, Elagage. Abstract : A business plan is a document presenting in a concise form

  11. Localization of Rayleigh waves B. Garber and M. Cahay

    E-Print Network [OSTI]

    Cahay, Marc

    's localization theory to successfully interpret the backscattering spectra of seismic waves recorded in sonicLocalization of Rayleigh waves B. Garber and M. Cahay Department of Electrical and Computer seismic shear and pressure waves, and geologi­ cal information in the coda of seismic shot records, should

  12. Prepared under the: Local Government GIS Demonstration Grant

    E-Print Network [OSTI]

    Ghelli, Giorgio

    Prepared under the: Local Government GIS Demonstration Grant Supported by: Local Government Records. Carmelle J. Côté Ms. Christina Finneran GIS Resource Group, Inc. Mr. Graham Hayes, President Mr. Thomas: (518) 473-4941 #12;GIS DEVELOPMENT GUIDE Volume 1 Table of Contents MANAGER'S OVERVIEW Introduction

  13. Introduction Result Bibliography Accepted Elasticity in Local Arithmetic

    E-Print Network [OSTI]

    Ponomarenko, Vadim

    Introduction Result Bibliography Accepted Elasticity in Local Arithmetic Congruence Monoids Vadim, 2014 http://www-rohan.sdsu.edu/~vadim/ accepted-talk.pdf #12;Introduction Result Bibliography Shameless one property, in the one class not yet understood, called "local". gcd(a, b) = p i.e. a = p, b = pn

  14. THE LOCAL INTERSTELLAR ULTRAVIOLET RADIATION FIELD Richard Conn Henry1

    E-Print Network [OSTI]

    THE LOCAL INTERSTELLAR ULTRAVIOLET RADIATION FIELD Richard Conn Henry1 Center for Astrophysical 21218; henry@jhu.edu Received 2001 July 20; accepted 2002 January 16 ABSTRACT I have used the Hipparcos of the interstellar extinction, to create a model of the expected intensity and spectral dis- tribution of the local

  15. A Stronger Bell Argument for Quantum Non-Locality

    E-Print Network [OSTI]

    Paul M. Näger

    2015-07-27

    It is widely accepted that the violation of Bell inequalities excludes local theories of the quantum realm. This paper presents a stronger Bell argument which even forbids certain non-local theories. Among these excluded non-local theories are those whose only non-local connection is a probabilistic (or functional) dependence between the space-like separated measurement outcomes of EPR/B experiments (a subset of outcome dependent theories). In this way, the new argument shows that the result of the received Bell argument, which requires just any kind of non-locality, is inappropriately weak. Positively, the remaining non-local theories, which can violate Bell inequalities (among them quantum theory), are characterized by the fact that at least one of the measurement outcomes in some sense probabilistically depends both on its local as well as on its distant measurement setting (probabilistic Bell contextuality). Whether an additional dependence between the outcomes holds, is irrelevant for the question whether a certain theory can violate Bell inequalities. This new concept of quantum non-locality is considerably tighter and more informative than the one following from the standard Bell argument. We prove that (given usual background assumptions) the result of the stronger Bell argument presented here is the strongest possible consequence from the violation of Bell inequalities on a qualitative probabilistic level.

  16. Localized and Delocalized Wave Functions for Butadiene Frank Rioux

    E-Print Network [OSTI]

    Rioux, Frank

    Localized and Delocalized Wave Functions for Butadiene Frank Rioux The generation of localized by modeling the -electrons of 1,3-butadiene as particles in a one-dimensional box (PIB). Solving Schrodinger of butadiene between carbons 1 and 2, and carbons 3 and 4 with the Lewis structure shown below

  17. Case histories of external microbiologically influenced corrosion

    SciTech Connect (OSTI)

    Pikas, J.L.

    1997-05-01

    External microbiologically influenced corrosion (MIC) is a serious dilemma in the pipeline industry. Even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbondment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, degree of cathodic protection, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbondment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory testing results, and field findings will be presented.

  18. Quantifying Sentiment and Influence in Blogspaces

    SciTech Connect (OSTI)

    Hui, Peter SY; Gregory, Michelle L.

    2010-07-25

    The weblog, or blog, has become a popular form of social media, through which authors can write posts, which can in turn generate feedback in the form of user comments. When considered in totality, a collection of blogs can thus be viewed as a sort of informal collection of mass sentiment and opinion. An obvious topic of interest might be to mine this collection to obtain some gauge of public sentiment over the wide variety of topics contained therein. However, the sheer size of the so-called blogosphere, combined with the fact that the subjects of posts can vary over a practically limitless number of topics poses some serious challenges when any meaningful analysis is attempted. Namely, the fact that largely anyone with access to the Internet can author their own blog, raises the serious issue of credibility— should some blogs be considered to be more influential than others, and consequently, when gauging sentiment with respect to a topic, should some blogs be weighted more heavily than others? In addition, as new posts and comments can be made on almost a constant basis, any blog analysis algorithm must be able to handle such updates efficiently. In this paper, we give a formalization of the blog model. We give formal methods of quantifying sentiment and influence with respect to a hierarchy of topics, with the specific aim of facilitating the computation of a per-topic, influence-weighted sentiment measure. Finally, as efficiency is a specific endgoal, we give upper bounds on the time required to update these values with new posts, showing that our analysis and algorithms are scalable.

  19. Incorporating psychological influences in probabilistic cost analysis

    SciTech Connect (OSTI)

    Kujawski, Edouard; Alvaro, Mariana; Edwards, William

    2004-01-08

    Today's typical probabilistic cost analysis assumes an ''ideal'' project that is devoid of the human and organizational considerations that heavily influence the success and cost of real-world projects. In the real world ''Money Allocated Is Money Spent'' (MAIMS principle); cost underruns are rarely available to protect against cost overruns while task overruns are passed on to the total project cost. Realistic cost estimates therefore require a modified probabilistic cost analysis that simultaneously models the cost management strategy including budget allocation. Psychological influences such as overconfidence in assessing uncertainties and dependencies among cost elements and risks are other important considerations that are generally not addressed. It should then be no surprise that actual project costs often exceed the initial estimates and are delivered late and/or with a reduced scope. This paper presents a practical probabilistic cost analysis model that incorporates recent findings in human behavior and judgment under uncertainty, dependencies among cost elements, the MAIMS principle, and project management practices. Uncertain cost elements are elicited from experts using the direct fractile assessment method and fitted with three-parameter Weibull distributions. The full correlation matrix is specified in terms of two parameters that characterize correlations among cost elements in the same and in different subsystems. The analysis is readily implemented using standard Monte Carlo simulation tools such as {at}Risk and Crystal Ball{reg_sign}. The analysis of a representative design and engineering project substantiates that today's typical probabilistic cost analysis is likely to severely underestimate project cost for probability of success values of importance to contractors and procuring activities. The proposed approach provides a framework for developing a viable cost management strategy for allocating baseline budgets and contingencies. Given the scope and magnitude of the cost-overrun problem, the benefits are likely to be significant.

  20. Local implementation of nonlocal operations of block forms

    E-Print Network [OSTI]

    Ning Bo Zhao; An Min Wang

    2008-03-27

    We investigate the local implementation of nonlocal operations with the block matrix form, and propose a protocol for any diagonal or offdiagonal block operation. This method can be directly generalized to the two-party multiqubit case and the multiparty case. Especially, in the multiparty cases, any diagonal block operation can be locally implemented using the same resources as the multiparty control-U operation discussed in Ref. [Eisert et al., Phys. Rev. A 62, 052317(2000)]. Although in the bipartite case, this kind of operations can be transformed to control-U operation using local operations, these transformations are impossible in the multiparty cases. We also compare the local implementation of nonlocal block operations with the remote implementation of local operations, and point out a relation between them.

  1. Internet Kiosks in Rural India: What Influences Success?#

    E-Print Network [OSTI]

    Kendall, Jake; Singh, Nirvikar

    2007-01-01

    Bank of India (2006), Handbook of Statistics on IndianIndia: What Influences Success? Table 6: Village/Kiosk Variables Summary Statistics

  2. Influence of Topological Spin Fluctuations on Charge Transport

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

    Influence of Topological Spin Fluctuations on Charge Transport Print Layered transition metal oxides are the focus of intense research efforts because they might clarify the...

  3. On Wealth and Wrongdoing: How Social Class Influences Unethical Behavior

    E-Print Network [OSTI]

    Piff, Paul Kayhan

    2012-01-01

    R. (2011). Facing social class: How societal rank influencesKeltner, D. (2011). Social class as culture: The convergenceBerkeley, Social class, chaos, and the construction of

  4. ORIGINAL ARTICLE Potential for anthropogenic disturbances to influence

    E-Print Network [OSTI]

    Hutchings, Jeffrey A.

    ORIGINAL ARTICLE Potential for anthropogenic disturbances to influence evolutionary change that resulted from hydropower dam construction, some juveniles now migrate as yearlings, but more interestingly

  5. Influences of Exciton Diffusion and Exciton-Exciton Annihilation...

    Office of Scientific and Technical Information (OSTI)

    Influences of Exciton Diffusion and Exciton-Exciton Annihilation on Photon Emission Statistics of Carbon Nanotubes Citation Details In-Document Search This content will become...

  6. Factors influencing photocurrent generation in organic bulk heterojunc...

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

    Factors influencing photocurrent generation in organic bulk heterojunction solar cells: interfacial energetics and blend microstructure April 29, 2009 at 3pm36-428 Jenny Nelson...

  7. Submarine Groundwater and Its Influence on Beach Pollution

    E-Print Network [OSTI]

    Boehm, Alexandria; Payton, Adina

    2007-01-01

    Submarine Groundwater and Its Influence on Beach Pollutioncounts are linked to groundwater flowing a few feet beneaththe sand. Groundwater discharging to the coast may be as

  8. Influence of Kaluza Scalar on the Raychaudhuri Equation

    E-Print Network [OSTI]

    R. Parthasarathy

    2013-11-01

    It is shown that the influence of Kaluza scalar is to induce expansion in the Raychaudhuri equation for two representative solutions of the Kaluza theory.

  9. FY08 LDRD Final Report LOCAL: Locality-Optimizing Caching Algorithms and Layouts

    SciTech Connect (OSTI)

    Lindstrom, P

    2009-02-27

    This project investigated layout and compression techniques for large, unstructured simulation data to reduce bandwidth requirements and latency in simulation I/O and subsequent post-processing, e.g. data analysis and visualization. The main goal was to eliminate the data-transfer bottleneck - for example, from disk to memory and from central processing unit to graphics processing unit - through coherent data access and by trading underutilized compute power for effective bandwidth and storage. This was accomplished by (1) designing algorithms that both enforce and exploit compactness and locality in unstructured data, and (2) adapting offline computations to a novel stream processing framework that supports pipelining and low-latency sequential access to compressed data. This report summarizes the techniques developed and results achieved, and includes references to publications that elaborate on the technical details of these methods.

  10. On the Shoulders of Giants: Incremental Influence Maximization in Evolving Social Networks

    E-Print Network [OSTI]

    Liu, Xiaodong; Li, Shanshan; Zhang, Jingying; Shao, Lisong; Huang, Chenlin; Xiao, Liquan

    2015-01-01

    Identifying the most influential individuals can provide invaluable help in developing and deploying effective viral marketing strategies. Previous studies mainly focus on designing efficient algorithms or heuristics to find top-K influential nodes on a given static social network. While, as a matter of fact, real-world social networks keep evolving over time and a recalculation upon the changed network inevitably leads to a long running time, significantly affecting the efficiency. In this paper, we observe from real-world traces that the evolution of social network follows the preferential attachment rule and the influential nodes are mainly selected from high-degree nodes. Such observations shed light on the design of IncInf, an incremental approach that can efficiently locate the top-K influential individuals in evolving social networks based on previous information instead of calculation from scratch. In particular, IncInf quantitatively analyzes the influence spread changes of nodes by localizing the im...

  11. Localization without recurrence and pseudo-Bloch oscillations in optics

    E-Print Network [OSTI]

    Longhi, Stefano

    2015-01-01

    Dynamical localization, i.e. the absence of secular spreading of a quantum or classical wave packet, is usually associated to Hamiltonians with purely point spectrum, i.e. with a normalizable and complete set of eigenstates, which show quasi-periodic dynamics (recurrence). Here we show rather counter-intuitively that dynamical localization can be observed in Hamiltonians with absolutely continuous spectrum, where recurrence effects are forbidden. An optical realization of such an Hamiltonian is proposed based on beam propagation in a self-imaging optical resonator with a phase grating. Localization without recurrence in this system is explained in terms of pseudo-Bloch optical oscillations.

  12. Influence of Ibuprofen on Phospholipid Membranes

    E-Print Network [OSTI]

    Jaksch, Sebastian; Koutsioubas, Alexandros; Mattauch, Stefan; Holderer, Olaf; Ivanova, Oxana; Frielinghaus, Henrich; Hertrich, Samira; Nickel, Bert

    2014-01-01

    Basic understanding of biological membranes is of paramount importance as these membranes comprise the very building blocks of life itself. Cells depend in their function on a range of properties of the membrane, which are important for the stability and function of the cell, information and nutrient transport, waste disposal and finally the admission of drugs into the cell and also the deflection of bacteria and viruses. We have investigated the influence of ibuprofen on the structure and dynamics of L-alpha-phosphatidylcholine (SoyPC) membranes by means of grazing incidence small-angle neutron scattering (GISANS), neutron reflectometry and grazing incidence neutron spin echo spectroscopy (GINSES). From the results of these experiments we were able to determine that ibuprofen induces a two-step structuring behavior in the SoyPC films, where the structure evolves from the purely lamellar phase for pure SoyPC over a superposition of two hexagonal phases to a purely hexago- nal phase at high concentrations. Add...

  13. RESEARCH PAPER Interaction of edge influence from multiple edges: examples

    E-Print Network [OSTI]

    Macdonald, Ellen

    ) in harvested forest landscapes could impair, or possibly enhance, their effectiveness. When multiple edges of cutblocks (harvested areas) and water bodies were entered into the models to predict edge influence) positive interaction, observed edge influence is greater than from either edge alone; (3) negative

  14. Factors influencing digital technology use in early childhood education

    E-Print Network [OSTI]

    Shahriar, Selim

    Factors influencing digital technology use in early childhood education Courtney K. Blackwell extrinsic and intrinsic factors that influence early childhood educators' digital technology use. Survey data from 1234 early childhood educators indicate that attitudes toward the value of technology to aid

  15. Normative self-definitional minority influence: when innovation is valued 

    E-Print Network [OSTI]

    Babcock, Denette Rae

    1998-01-01

    The goal of this study was to test a prediction of the normative self-definitional model of social influence: when a non-n of 1 innovation 's salient and se] f-relevant to person, a minority is more likely to attain influence compared to when a norm...

  16. AVERAGE INFLUENCE OF THRESHOLD BOOLEAN FUNCTIONS AND HETEROGENEOUS KAUFFMAN NETWORKS

    E-Print Network [OSTI]

    Matache, Dora

    was to build upon previous research about other types of func- tions and their influence by developing a model it to model the influence and find the critical values for combinations of different types of Boolean recent research has focused on finding phase transitions for homogeneous network ensembles with just one

  17. A Bayesian Approach to Empirical Local Linearization For Robotics 

    E-Print Network [OSTI]

    Ting, Jo-Anne; D'Souza, Aaron; Vijayakumar, Sethu; Schaal, Stefan

    2008-01-01

    Local linearizations are ubiquitous in the control of robotic systems. Analytical methods, if available, can be used to obtain the linearization, but in complex robotics systems where the dynamics and kinematics are ...

  18. Local Option - Renewable Energy Financing District/Solar Energy...

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

    your local government to find out if it has established a PACE financing program.) Renewable Energy Financing District Act New Mexico enacted S.B. 647 in 2009, which...

  19. The Evolution of Local Governance: A New Democracy

    E-Print Network [OSTI]

    Nalbandian, John

    1987-06-01

    Increasingly, I hear local government managers talk disparagingly and with frustration about the councilmembers they work for. I also observe elected officials thrusting managers into the policy lime-light – either in response to council ineptness...

  20. Local Dimensionality Reduction for Non-Parametric Regression 

    E-Print Network [OSTI]

    Hoffmann, Heiko; Schaal, Stefan; Vijayakumar, Sethu

    2009-01-01

    Locally-weighted regression is a computationally-efficient technique for non-linear regression. However, for high-dimensional data, this technique becomes numerically brittle and computationally too expensive if many ...