National Library of Energy BETA

Sample records for wave glider-based passive

  1. Passive tomography for elastic waves in solids

    E-Print Network [OSTI]

    Mikael Carmona; Olivier Michel; Jean-Louis Lacoume; Nathalie Sprynski; Barbara Nicolas

    2011-03-24

    In this paper we derive relations between the cross-correlation of ambient noises recorded at two different points and the Green's function of the elastic waves in a medium with viscous damping. The Green's function allows to estimate physical parameters such as speeds or distances. Furthermore, this work is extended by introducing the Green's correlation function proposed by J-L. Lacoume in [Lacoume07]. Some recent works proved the possible reconstruction of the Green's function for scalar waves from the cross-correlation function of ambient noise. In this work, we consider vector waves propagating in a three dimensional solid medium. Two approaches are developed. Firstly, we extend theoretical derivations proposed by Y. Colin de Verdi`ere in [ColinDeVerdiere09], relating cross-correlation of scalar waves to 1D Green's function using linear operator theory. The second approach recasts the three dimensional problem in the framework of Fourier theory. This allows to improve physical understanding of the underlying physical processes as outlined in [Lacoume07].

  2. Passive trapped modes in the water wave problem for a floating structure

    E-Print Network [OSTI]

    Passive trapped modes in the water wave problem for a floating structure C. J. Fitzgerald and P. Mc. These "passive trapped modes" are such that the net force on the structure exerted by the fluid oscillation to float freely. In the paper, methods are given for the construction of passive trapping structures

  3. Highly Integrated Millimeter-Wave Passive Components Using 3-D LTCC System-on-Package

    E-Print Network [OSTI]

    Tentzeris, Manos

    miniaturized easy-to-design passive circuits that can be used as critical building blocks for millimetre building blocks enabling a complete passive solution for compact, low cost wireless front-end modulesHighly Integrated Millimeter-Wave Passive Components Using 3-D LTCC System-on-Package (SOP

  4. Discreet passive explosive detection through 2-sided wave guided fluorescence

    SciTech Connect (OSTI)

    Harper, Ross James; la Grone, Marcus; Fisher, Mark

    2012-10-16

    The current invention provides a passive sampling device suitable for collecting and detecting the presence of target analytes. In particular, the passive sampling device is suitable for detecting nitro-aromatic compounds. The current invention further provides a passive sampling device reader suitable for determining the collection of target analytes. Additionally, the current invention provides methods for detecting target analytes using the passive sampling device and the passive sampling device reader.

  5. Passive and Active Acoustics Using an Autonomous Wave Glider

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    localization. These tests were performed using commercial off-the-shelf acoustic positioning hardware in, e-mail: bsb@hawaii.edu. wave glider is a wave-propelled unmanned surface vessel (USV to be an effective tool for understanding marine mammals and monitoring ship traffic (as well as a variety

  6. Passive Millimeter-Wave Ranging Using Discrete Lenses with Wave-Front Coding

    E-Print Network [OSTI]

    Popovic, Zoya

    of a receiving discrete lens with modulated amplitude and/or phase response. The result is a set of image pat on a relatively small (100-element) discrete lens antenna array with a cosinusoidal amplitude mask and half curve around 94 GHz. Waves in this fre- quency range penetrate through dust, fog and smoke

  7. PASSIVE WIRELESS SURFACE ACOUSTIC WAVE SENSORS FOR MONITORING SEQUESTRATION SITES CO2 EMISSION

    SciTech Connect (OSTI)

    Wang, Yizhong; Chyu, Minking; Wang, Qing-Ming

    2012-11-30

    University of Pittsburgh’s Transducer lab has teamed with the U.S. Department of Energy’s National Energy Technology Laboratory (DOE NETL) to conduct a comprehensive study to develop/evaluate low-cost, efficient CO2 measuring technologies for geological sequestration sites leakage monitoring. A passive wireless CO2 sensing system based on surface acoustic wave technology and carbon nanotube nanocomposite was developed. Surface acoustic wave device was studied to determine the optimum parameters. Delay line structure was adopted as basic sensor structure. CNT polymer nanocomposite was fabricated and tested under different temperature and strain condition for natural environment impact evaluation. Nanocomposite resistance increased for 5 times under pure strain, while the temperature dependence of resistance for CNT solely was -1375ppm/?. The overall effect of temperature on nanocomposite resistance was -1000ppm/?. The gas response of the nanocomposite was about 10% resistance increase under pure CO2. The sensor frequency change was around 300ppm for pure CO2. With paralyne packaging, the sensor frequency change from relative humidity of 0% to 100% at room temperature decreased from over 1000ppm to less than 100ppm. The lowest detection limit of the sensor is 1% gas concentration, with 36ppm frequency change. Wireless module was tested and showed over one foot transmission distance at preferred parallel orientation.

  8. CX-008012: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Wave Glider-Based Passive Acoustic Detection System CX(s) Applied: B3.6, B3.16, Date: 01/04/2012 Location(s): Washington Offices(s): Science, Pacific Northwest Site Office

  9. A Novel Wireless Passive Temperature Sensor Utilizing Microfluidic Principles in Millimeter-Wave

    E-Print Network [OSTI]

    Tentzeris, Manos

    A Novel Wireless Passive Temperature Sensor Utilizing Microfluidic Principles in Millimeter. INTRODUCTION A new miniaturized passive and wireless sensing tag is presented, which is based on microfluidic. Preliminary guidelines for a novel generation of wearable, implantable and conformal "smart house"/"smart skin

  10. Passive and active circuits in cmos technology for rf, microwave and millimeter wave applications 

    E-Print Network [OSTI]

    Chirala, Mohan Krishna

    2009-05-15

    The permeation of CMOS technology to radio frequencies and beyond has fuelled an urgent need for a diverse array of passive and active circuits that address the challenges of rapidly emerging wireless applications. While ...

  11. Beyond receiver functions: Passive source reverse time migration and inverse scattering of converted waves

    E-Print Network [OSTI]

    Shang, Xuefeng

    We present a wave equation prestack depth migration to image crust and mantle structures using multi-component earthquake data recorded at dense seismograph arrays. Transmitted P and S waves recorded on the surface are ...

  12. SiGe receiver front ends and flip-chip integrated wideband antennas for millimeter-wave passive imaging

    E-Print Network [OSTI]

    Powell, Johnna, 1980-

    2009-01-01

    SiGe wideband 77-GHz and 94-GHz front end receivers with integrated antennas for passive imaging have been designed and characterized. These front end systems exhibit wideband performance with the highest gain and lowest ...

  13. PASSIVE DETECTORS

    E-Print Network [OSTI]

    Thomas, R.H.

    2010-01-01

    Italy, September 1979 PASSIVE DETECTORS Ralph H. Thomasthereof. |ir>Bi f j I PASSIVE DETECTORS Course on AdvancesI shall interpret the term "passive" radiation detector as

  14. Wireless passive radiation sensor

    DOE Patents [OSTI]

    Pfeifer, Kent B; Rumpf, Arthur N; Yelton, William G; Limmer, Steven J

    2013-12-03

    A novel measurement technique is employed using surface acoustic wave (SAW) devices, passive RF, and radiation-sensitive films to provide a wireless passive radiation sensor that requires no batteries, outside wiring, or regular maintenance. The sensor is small (<1 cm.sup.2), physically robust, and will operate unattended for decades. In addition, the sensor can be insensitive to measurement position and read distance due to a novel self-referencing technique eliminating the need to measure absolute responses that are dependent on RF transmitter location and power.

  15. Aggressively Passive 

    E-Print Network [OSTI]

    Upadhyaya, K.

    2013-01-01

    Lagrangian (multi-phase) Steady Implicit/Explicit Unsteady flows Free surface & Cavitation, Segregated or Coupled solvers Passiver or Active Scalar t transpor Inviscid, laminar & turbulent flows (k-epsilon, Spalart-Allmaras) Combustion Moving reference...

  16. Passive Curvaton

    E-Print Network [OSTI]

    Chia-Min Lin

    2013-06-19

    We propose a class of curvaton models which we call passive curvaton. In this paper, two kinds of passive curvaton is considered. The first one is a pseudoscalar curvaton couples to a gauge field. Different from the inflaton case, the constraint from formation of primordial black holes (PBHs) is much weaker and large non-gaussianity (of the equiliteral type) can be produced. The second model is a dilaton-like scalar curvaton couples to a gauge field. We investigate the scale dependence of non-gaussianity in this model. In both models, the spectrum and non-Gaussianity are enhanced by the slow-roll parameter of the curvaton field. Other possible passive curvaton models are also mentioned.

  17. RADIATIVE AND PASSIVE COOLING

    E-Print Network [OSTI]

    Martin, M.

    2011-01-01

    Ext. 6782 Radiative and Passive Cooling Marlo Martin andof the Second Nation- al Passive Solar Conference (owned rights. ,I I RADIATIVE AND PASSIVE COOLING* LAIVRENCE

  18. Active and passive plasmonic devices

    E-Print Network [OSTI]

    Pourabdollah Nezhad, Maziar

    2007-01-01

    G. Mattiussi, and P. Berini, "Passive integrated opticsCALIFORNIA, SAN DIEGO Active and Passive Plasmonic Devices ADISSERTATION Active and Passive Plasmonic Devices by Maziar

  19. From Reflexive to Passive

    E-Print Network [OSTI]

    Sohn, Joong-Sun

    1998-01-01

    Previous approaches to the passive development from a reflexive marking focus on how the former is similar to the latter semantically and syntactically. I show that the passive evolution is better understood by looking at the internal procedures...

  20. [Fundamental studies of passivity and passivity breakdown

    SciTech Connect (OSTI)

    Macdonald, D.D.

    1993-07-01

    We developed and experimentally tested physical models for growth and breakdown of passive films on metal surfaces. These models are ``point defect models,`` in which the growth and breakdown are described in terms of movement of anion and cation vacancies. The work during the past 5 years resulted in: theory of growth and breakdown of passive films, theory of corrosion-resistant alloys, electronic structure of passive films, and estimation of damage functions for energy systems. Proposals are give for the five ongoing tasks. 10 figs.

  1. Passive solar space heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1980-01-01

    An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

  2. Passive magnetic bearing configurations

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    2011-01-25

    A journal bearing provides vertical and radial stability to a rotor of a passive magnetic bearing system when the rotor is not rotating and when it is rotating. In the passive magnetic bearing system, the rotor has a vertical axis of rotation. Without the journal bearing, the rotor is vertically and radially unstable when stationary, and is vertically stable and radially unstable when rotating.

  3. Passive solar construction handbook

    SciTech Connect (OSTI)

    Levy, E.; Evans, D.; Gardstein, C.

    1981-08-01

    Many of the basic elements of passive solar design are reviewed. The unique design constraints presented in passive homes are introduced and many of the salient issues influencing design decisions are described briefly. Passive solar construction is described for each passive system type: direct gain, thermal storage wall, attached sunspace, thermal storage roof, and convective loop. For each system type, important design and construction issues are discussed and case studies illustrating designed and built examples of the system type are presented. Construction details are given and construction and thermal performance information is given for the materials used in collector components, storage components, and control components. Included are glazing materials, framing systems, caulking and sealants, concrete masonry, concrete, brick, shading, reflectors, and insulators. The Load Collector Ratio method for estimating passive system performance is appended, and other analysis methods are briefly summarized. (LEW)

  4. Passive millimeter wave differential interference contrast polarimetry

    DOE Patents [OSTI]

    Bernacki, Bruce E; Kelly, James F; Sheen, David M; Tedeschi, Jonathan R; Hall, Thomas E; Hatchell, Brian K; Valdez, Patrick; McMakin, Douglas L

    2014-04-29

    Differential polarization imaging systems include an axicon configured to provide a displacement of ray bundles associated with different image patches. The displaced ray bundles are directed to antenna horns and orthomode transducers so as to provide outputs correspond to orthogonal linear states of polarization (SOPs). The outputs are directed to a differential radiometer so that Stokes parameter differences between image patches can be obtained. The ray bundle displacements can be selected to correspond to a mechanical spacing of antenna horns. In some examples, ray bundle displacement corresponds to a displacement less than the diffraction limit.

  5. Hood River Passive House

    SciTech Connect (OSTI)

    Hales, D.

    2013-03-01

    The Hood River Passive Project was developed by Root Design Build of Hood River Oregon using the Passive House Planning Package (PHPP) to meet all of the requirements for certification under the European Passive House standards. The Passive House design approach has been gaining momentum among residential designers for custom homes and BEopt modeling indicates that these designs may actually exceed the goal of the U.S. Department of Energy's (DOE) Building America program to reduce home energy use by 30%-50% (compared to 2009 energy codes for new homes). This report documents the short term test results of the Shift House and compares the results of PHPP and BEopt modeling of the project.

  6. Passive microfluidic interconnects

    E-Print Network [OSTI]

    Jonnalagadda, Aparna S

    2005-01-01

    Equipment and procedures were developed to test two passive microfluidic interconnect rings held together by the friction forces on the contact surfaces. The second design forms fluid seals by means of thin flared rings ...

  7. Passive research and practice

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    Passive-solar applications in buildings are described and examples are given to illustrate how research in the field has been approached. The major emphasis of the research has been on devising mathematical models to characterize heat flow within buildings, on the validation of these models by comparison with test results, and on the subsequent use of the models to investigate the influence of both various design parameters and the weather on system performance. Results from both test modules and monitored buildings are given. Simulation analysis, the development of simplified methods, and systems analysis are outlined. Passive-solar practice is described and the key elements that have led to successful passive-solar applications are discussed.

  8. Method of passivating semiconductor surfaces

    DOE Patents [OSTI]

    Wanlass, M.W.

    1990-06-19

    A method is described for passivating Group III-V or II-VI semiconductor compound surfaces. The method includes selecting a passivating material having a lattice constant substantially mismatched to the lattice constant of the semiconductor compound. The passivating material is then grown as an ultrathin layer of passivating material on the surface of the Group III-V or II-VI semiconductor compound. The passivating material is grown to a thickness sufficient to maintain a coherent interface between the ultrathin passivating material and the semiconductor compound. In addition, a device formed from such method is also disclosed.

  9. MODELING PASSIVE SOLAR BUILDINGS WITH HAND CALCULATIONS

    E-Print Network [OSTI]

    Goldstein, David B.

    2011-01-01

    Stromberg, and S.O. Woodall. "Passive Solar Buildings: ASome Analytic Models of Passive Solar Building Per­at the Third National Passive Solar Conference, San Jose,

  10. Passive Constructions in Kwak'wala

    E-Print Network [OSTI]

    Rosenblum, Daisy

    2013-01-01

    Publications, Oosterhout, NB. ) Passive Constructions in K !Bernard. 2007. “What is a Passive? ” Studies in Voice andClauses in Bella Coola: Passive vs. Inverse. Voice and

  11. Passive solar applications

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1985-01-01

    Passive solar applications in buildings are described. The major emphasis of the research has been on devising mathematical models to characterize heat flow within buildings, on the validation of these models by comparison with test results, and on the subsequent use of the models to investigate the influence of both various design parameters and the weather on system performance. Results from both test modules and monitored buildings are discussed. Simulation analysis, the development of simplified methods, and systems analysis are outlined. Passive solar potential in China is discussed.

  12. Passive solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1992-10-01

    Developments in passive solar buildings that took place from the early 1970`s through 1989 are described. Much of the work covered was federally sponsored during the period 1975 through 1986. About half the volume is devoted to quantitative methods for modeling, simulation, and design analysis of passive buildings; the other half summarizes the quantitative results of testing and monitoring of models and buildings. The following are covered: building solar gain modeling, simulation analysis, simplified methods, materials and components, analytical results for specific systems, test modules, building integration, performance monitoring and results, and design tools. (MHR)

  13. Passive solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D. )

    1992-01-01

    Developments in passive solar buildings that took place from the early 1970's through 1989 are described. Much of the work covered was federally sponsored during the period 1975 through 1986. About half the volume is devoted to quantitative methods for modeling, simulation, and design analysis of passive buildings; the other half summarizes the quantitative results of testing and monitoring of models and buildings. The following are covered: building solar gain modeling, simulation analysis, simplified methods, materials and components, analytical results for specific systems, test modules, building integration, performance monitoring and results, and design tools. (MHR)

  14. Hood River Passive House

    SciTech Connect (OSTI)

    Hales, D.

    2014-01-01

    The Hood River Passive Project was developed by Root Design Build of Hood River Oregon using the Passive House Planning Package (PHPP) to meet all of the requirements for certification under the European Passive House standards. The Passive House design approach has been gaining momentum among residential designers for custom homes and BEopt modeling indicates that these designs may actually exceed the goal of the U.S. Department of Energy's (DOE) Building America program to reduce home energy use by 30%-50% (compared to 2009 energy codes for new homes). This report documents the short term test results of the Shift House and compares the results of PHPP and BEopt modeling of the project. The design includes high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless mini-split heat pump. Cost analysis indicates that many of the measures implemented in this project did not meet the BA standard for cost neutrality. The ductless mini-split heat pump, lighting and advanced air leakage control were the most cost effective measures. The future challenge will be to value engineer the performance levels indicated here in modeling using production based practices at a significantly lower cost.

  15. Hood River Passive House

    SciTech Connect (OSTI)

    Hales, David

    2014-01-01

    The Hood River Passive Project was developed by Root Design Build of Hood River Oregon using the Passive House Planning Package (PHPP) to meet all of the requirements for certification under the European Passive House standards. The Passive House design approach has been gaining momentum among residential designers for custom homes and BEopt modeling indicates that these designs may actually exceed the goal of the U.S. Department of Energy's (DOE) Building America program to "reduce home energy use by 30%-50% (compared to 2009 energy codes for new homes). This report documents the short term test results of the Shift House and compares the results of PHPP and BEopt modeling of the project. The design includes high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless mini-split heat pump. Cost analysis indicates that many of the measures implemented in this project did not meet the BA standard for cost neutrality. The ductless mini-split heat pump, lighting and advanced air leakage control were the most cost effective measures. The future challenge will be to value engineer the performance levels indicated here in modeling using production based practices at a significantly lower cost.

  16. Acquisition of the Passive

    E-Print Network [OSTI]

    Hill, Francine

    1998-01-01

    This single-subject pilot study, modeled after de Villiers' 1973, investigates the subject's acquisition of the passive construction (i.e., 'The boy was hit by the girl', as opposed to The girl hit the boy'). The purposes was to determine...

  17. PRELIMINARY VALEN MODELING OF PASSIVE

    E-Print Network [OSTI]

    PRELIMINARY VALEN MODELING OF PASSIVE AND ACTIVE CONTROL OF RWM IN FIRE J. Bialek Columbia;VALEN Model of FIRE Passive & Active Stabilization 43210 -2 -1 0 1 2 z Z-vv Data from "dcon.FIRE.01" r z structure is computed w/o FIRE conducting wall. #12;VALEN Model of FIRE Passive Stabilization 1 0 0 1 0 - 1

  18. Chinese Passives: Transformational or Lexical?

    E-Print Network [OSTI]

    Zhang, Jiuwu; Wen, Xiaohong

    1989-01-01

    There are two types of passive constructions in Chinese. Type I is a syntactic passive since it is derived through a transformational rule. Type II is a lexical passive. It has certain properties in common with the predicate adjectives in Chinese...

  19. Passive Constructions in Kwak'wala

    E-Print Network [OSTI]

    Rosenblum, Daisy

    2013-01-01

    PRIMARY OBJECT passive: promoted SBJ is ‘house’ PRED SBJ O2my house’. Example (46), with SECONDARY OBJECT passive =&m

  20. Dispersion of Passive Tracers in the Surfzone

    E-Print Network [OSTI]

    Fedderson, Falk; Guza, Robert T.

    2007-01-01

    Dispersion of passive tracers in the surfzone Feddersen andThe dispersion of passive tracers, such as pollutants, in

  1. Passive Synthetic Aperture Radar Imaging of Ground Moving Targets

    E-Print Network [OSTI]

    Yazici, Birsen

    waves due to illuminating sources of opportunity such as commercial television, radio, and cell phone of opportunity such as radio, cell phone, and television transmission towers. The absence of active signal synthetic aperture radar. A passive radar imaging system uses small, mobile receivers that do not radiate

  2. Tracking and disturbance rejection for passive nonlinear systems Bayu Jayawardhana

    E-Print Network [OSTI]

    Sontag, Eduardo

    signals of frequency . If the reference and disturbance signals are periodic, then the internal modelTracking and disturbance rejection for passive nonlinear systems Bayu Jayawardhana Abstract tracking of constant reference signal and disturbance rejection of a finite superposition of sine waves

  3. Passivated niobium cavities

    DOE Patents [OSTI]

    Myneni, Ganapati Rao (Yorktown, VA); Hjorvarsson, Bjorgvin (Lagga Arby, SE); Ciovati, Gianluigi (Newport News, VA)

    2006-12-19

    A niobium cavity exhibiting high quality factors at high gradients is provided by treating a niobium cavity through a process comprising: 1) removing surface oxides by plasma etching or a similar process; 2) removing hydrogen or other gases absorbed in the bulk niobium by high temperature treatment of the cavity under ultra high vacuum to achieve hydrogen outgassing; and 3) assuring the long term chemical stability of the niobium cavity by applying a passivating layer of a superconducting material having a superconducting transition temperature higher than niobium thereby reducing losses from electron (cooper pair) scattering in the near surface region of the interior of the niobium cavity. According to a preferred embodiment, the passivating layer comprises niobium nitride (NbN) applied by reactive sputtering.

  4. Passive solar buildings research

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1992-12-31

    This chapter covers research advances in passive solar buildings research during the time span from 1982 through 1991. These advances fall within the following categories: (1) short-term energy monitoring, (2) heat transport by natural convection within buildings, and (3) design guidelines and design tools. In short-term energy monitoring, a simulation model of the building is calibrated, based on data taken in a 3-day test. The method accurately predicts performance over an extended period. Heat transport through doorways is characterized for complex situations that arise in passive solar buildings. Simple concepts and models adequately describe the energy transport in many situations of interest. In a new approach, design guidelines are automatically generated for any specific locality. Worksheets or an accompanying computer program allow the designer to quickly and accurately evaluate performance and investigate design alternatives. 29 refs., 19 figs., 2 tabs.

  5. Passive-solar construction handbook

    SciTech Connect (OSTI)

    Levy, E.; Evans, D.; Gardstein, C.

    1981-02-01

    Many of the basic elements of passive solar design are reviewed. Passive solar construction is covered according to system type, each system type discussion including a general discussion of the important design and construction issues which apply to the particular system and case studies illustrating designed and built examples of the system type. The three basic types of passive solar systems discussed are direct gain, thermal storage wall, and attached sunspace. Thermal performance and construction information is presented for typical materials used in passive solar collector components, storage components, and control components. Appended are an overview of analysis methods and a technique for estimating performance. (LEW)

  6. Fly ash carbon passivation

    DOE Patents [OSTI]

    La Count, Robert B; Baltrus, John P; Kern, Douglas G

    2013-05-14

    A thermal method to passivate the carbon and/or other components in fly ash significantly decreases adsorption. The passivated carbon remains in the fly ash. Heating the fly ash to about 500 and 800 degrees C. under inert gas conditions sharply decreases the amount of surfactant adsorbed by the fly ash recovered after thermal treatment despite the fact that the carbon content remains in the fly ash. Using oxygen and inert gas mixtures, the present invention shows that a thermal treatment to about 500 degrees C. also sharply decreases the surfactant adsorption of the recovered fly ash even though most of the carbon remains intact. Also, thermal treatment to about 800 degrees C. under these same oxidative conditions shows a sharp decrease in surfactant adsorption of the recovered fly ash due to the fact that the carbon has been removed. This experiment simulates the various "carbon burnout" methods and is not a claim in this method. The present invention provides a thermal method of deactivating high carbon fly ash toward adsorption of AEAs while retaining the fly ash carbon. The fly ash can be used, for example, as a partial Portland cement replacement in air-entrained concrete, in conductive and other concretes, and for other applications.

  7. CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and PassiveActive and Passive

    E-Print Network [OSTI]

    Gilbes, Fernando

    1 CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and PassiveActive and Passive Microwave RSMicrowave Hall Passive Remote SensingPassive Remote Sensing Passive remote sensing systems record electromagnetic infrared energy) from the surface of the E hEarth. #12;2 SSM/I Passive Microwave Radiometer Image of

  8. Temperature initiated passive cooling system

    DOE Patents [OSTI]

    Forsberg, C.W.

    1994-11-01

    A passive cooling system for cooling an enclosure only when the enclosure temperature exceeds a maximum standby temperature comprises a passive heat transfer loop containing heat transfer fluid having a particular thermodynamic critical point temperature just above the maximum standby temperature. An upper portion of the heat transfer loop is insulated to prevent two phase operation below the maximum standby temperature. 1 fig.

  9. Temperature initiated passive cooling system

    DOE Patents [OSTI]

    Forsberg, Charles W. (Oak Ridge, TN)

    1994-01-01

    A passive cooling system for cooling an enclosure only when the enclosure temperature exceeds a maximum standby temperature comprises a passive heat transfer loop containing heat transfer fluid having a particular thermodynamic critical point temperature just above the maximum standby temperature. An upper portion of the heat transfer loop is insulated to prevent two phase operation below the maximum standby temperature.

  10. MODELING PASSIVE SOLAR BUILDINGS WITH HAND CALCULATIONS

    E-Print Network [OSTI]

    Goldstein, David B.

    2011-01-01

    time of day for a passive solar house under four differentresponse function for a passive solar house would begin toB(w)/A(w). A good passive solar house w i l l have B/A large

  11. MODELING PASSIVE SOLAR BUILDINGS WITH HAND CALCULATIONS

    E-Print Network [OSTI]

    Goldstein, David B.

    2011-01-01

    of day for simple passive buildings with free-floating (and S.O. Woodall. "Passive Solar Buildings: A Compilation ofAnalytic Models of Passive Solar Building Per­ formance."

  12. Passive containment cooling system

    DOE Patents [OSTI]

    Billig, P.F.; Cooke, F.E.; Fitch, J.R.

    1994-01-25

    A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA. 1 figure.

  13. Passive containment cooling system

    DOE Patents [OSTI]

    Billig, Paul F. (San Jose, CA); Cooke, Franklin E. (San Jose, CA); Fitch, James R. (San Jose, CA)

    1994-01-01

    A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA.

  14. Passive magnetic bearing system

    DOE Patents [OSTI]

    Post, Richard F.

    2014-09-02

    An axial stabilizer for the rotor of a magnetic bearing provides external control of stiffness through switching in external inductances. External control also allows the stabilizer to become a part of a passive/active magnetic bearing system that requires no external source of power and no position sensor. Stabilizers for displacements transverse to the axis of rotation are provided that require only a single cylindrical Halbach array in its operation, and thus are especially suited for use in high rotation speed applications, such as flywheel energy storage systems. The elimination of the need of an inner cylindrical array solves the difficult mechanical problem of supplying support against centrifugal forces for the magnets of that array. Compensation is provided for the temperature variation of the strength of the magnetic fields of the permanent magnets in the levitating magnet arrays.

  15. Passive Solar Industries Council | Open Energy Information

    Open Energy Info (EERE)

    Passive Solar Industries Council Jump to: navigation, search Name: Passive Solar Industries Council Place: Ashland, OR Information About Partnership with NREL Partnership with NREL...

  16. A short note on passivity, complete passivity and virtual temperatures

    E-Print Network [OSTI]

    Paul Skrzypczyk; Ralph Silva; Nicolas Brunner

    2014-12-17

    We give a simple and intuitive proof that the only states which are completely passive, i.e. those states from which work cannot be extracted even with infinitely many copies, are Gibbs states at positive temperatures. The proof makes use of the idea of virtual temperatures, i.e. the association of temperatures to transitions. We show that (i) passive states are those where every transition is at a positive temperature, and (ii) completely passive states are those where every transition is at the same positive temperature.

  17. Three-dimensional passive seismic waveform imaging around the SAFOD site, California, using the generalized Radon transform

    E-Print Network [OSTI]

    van der Hilst, Robert D.

    We apply a three-dimensional (3D) generalized Radon transform (GRT) to scattered P-waves from 575 local earthquakes recorded at 68 temporary network stations for passive-source imaging of (near-vertical) structures close ...

  18. Passive hybrid sensing tag with flexible substrate saw device

    DOE Patents [OSTI]

    Skinner, Jack L.; Chu, Eric Y.; Ho, Harvey

    2012-12-25

    The integration of surface acoustic wave (SAW) filters, microfabricated transmission lines, and sensors onto polymer substrates in order to enable a passive wireless sensor platform is described herein. Incident microwave pulses on an integrated antenna are converted to an acoustic wave via a SAW filter and transmitted to an impedance based sensor, which for this work is a photodiode. Changes in the sensor state induce a corresponding change in the impedance of the sensor resulting in a reflectance profile. Data collected at a calibrated receiver is used to infer the state of the sensor. Based on this principal, light levels were passively and wirelessly demonstrated to be sensed at distances of up to about 12 feet.

  19. The most energetic passive states

    E-Print Network [OSTI]

    Martí Perarnau-Llobet; Karen V. Hovhannisyan; Marcus Huber; Paul Skrzypczyk; Jordi Tura; Antonio Acín

    2015-02-25

    Passive states are defined as those states that do not allow for work extraction in a cyclic (unitary) process. Within the set of passive states, thermal states are the most stable ones: they maximize the entropy for a given energy, and similarly they minimize the energy for a given entropy. In this article we find the passive states lying in the other extreme, i.e., those that maximize the energy for a given entropy, which we show also minimize the entropy when the energy is fixed. These extremal properties make these states useful to obtain fundamental bounds for the thermodynamics of finite dimensional quantum systems, which we show in several scenarios.

  20. Passive blast pressure sensor

    DOE Patents [OSTI]

    King, Michael J.; Sanchez, Roberto J.; Moss, William C.

    2013-03-19

    A passive blast pressure sensor for detecting blast overpressures of at least a predetermined minimum threshold pressure. The blast pressure sensor includes a piston-cylinder arrangement with one end of the piston having a detection surface exposed to a blast event monitored medium through one end of the cylinder and the other end of the piston having a striker surface positioned to impact a contact stress sensitive film that is positioned against a strike surface of a rigid body, such as a backing plate. The contact stress sensitive film is of a type which changes color in response to at least a predetermined minimum contact stress which is defined as a product of the predetermined minimum threshold pressure and an amplification factor of the piston. In this manner, a color change in the film arising from impact of the piston accelerated by a blast event provides visual indication that a blast overpressure encountered from the blast event was not less than the predetermined minimum threshold pressure.

  1. Passive, free-space laser gyroscope

    E-Print Network [OSTI]

    Korth, W Zach; Hall, Evan D; Arai, Koji; Gustafson, Eric K; Adhikari, Rana X

    2015-01-01

    Laser gyroscopes making use of the Sagnac effect have been used as highly accurate rotation sensors for many years. First used in aerospace and defense applications, these devices have more recently been used for precision seismology and in other research settings. In particular, mid-sized (~1 m-scale) laser gyros have been under development as tilt sensors to augment the adaptive active seismic isolation systems in terrestrial interferometric gravitational wave detectors. The most prevalent design is the "active" gyroscope, in which the optical ring cavity used to measure the Sagnac degeneracy breaking is itself a laser resonator. In this article, we describe another topology: a "passive" gyroscope, in which the sensing cavity is not itself a laser but is instead tracked using external laser beams. While subject to its own limitations, this design is free from the deleterious lock-in effects observed in active systems, and has the advantage that it can be constructed using commercially available components. ...

  2. Passive Infinite-Dimensional Descriptor Systems

    E-Print Network [OSTI]

    Reis, Timo

    Passive Infinite-Dimensional Descriptor Systems Timo Reis Birgit Jacob 1 Introduction We consider models [12]. In this work, the concept of input-output-passivity (io-passivity) is considered for systems of type (1). Io-passivity means that U = Y and that the real part of the Lebesgue inner product of input

  3. Passive advection in nonlinear medium Michael Chertkov

    E-Print Network [OSTI]

    Chertkov, Mikhael

    Passive advection in nonlinear medium Michael Chertkov Department of Physics, Princeton University, Princeton, New Jersey 08544 Received 23 September 1998; accepted 15 April 1999 Forced advection of passive on velocity, in com- parison with those of advection and nonlinearity, is called passive. The passiveness does

  4. Passive Evolution of Galaxy Clustering

    E-Print Network [OSTI]

    Hee-Jong Seo; Daniel J. Eisenstein; Idit Zehavi

    2007-12-11

    We present a numerical study of the evolution of galaxy clustering when galaxies flow passively from high redshift, respecting the continuity equation throughout. While passive flow is a special case of galaxy evolution, it allows a well-defined study of galaxy ancestry and serves as an interesting limit to be compared to non-passive cases. We use dissipationless N-body simulations, assign galaxies to massive halos at z=1 and z=2 using various HOD models, and trace these galaxy particles to lower redshift while conserving their number. We find that passive flow results in an asymptotic convergence at low redshift in the HOD and in galaxy clustering on scales above ~3Mpc/h for a wide range of initial HODs. As galaxies become less biased with respect to mass asymptotically with time, the HOD parameters evolve such that M1/Mm decreases while alpha converges toward unity, where Mm is the characteristic halo mass to host a central galaxy, M1 is the halo mass to host one satellite galaxy, and alpha is the power-law index in the halo-mass dependence of the average number of satellites per halo. The satellite populations converge toward the Poisson distribution at low redshift. The convergence is robust for different number densities and is enhanced when galaxies evolve from higher redshift. We compare our results with the observed LRG sample from Sloan Digital Sky Survey that has the same number density. We claim that if LRGs have experienced a strict passive flow, their should be close to a power law with an index of unity in halo mass. Discrepancies could be due to dry galaxy merging or new members arising between the initial and the final redshifts. The spatial distribution of passively flowing galaxies within halos appears on average more concentrated than the halo mass profile at low redshift. (abridged)

  5. An Update on Passive Correctors for the SSC Dipole Magnets

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    Report on the Fermilab Passive Superconductor Test", ICFAOne Meter Long Dipole Magnets Using Passive Superconductor",H. E. Fisk, "The Idea of Passive Superconductor correction",

  6. INSTRUCTIONS FOR OPERATING LBL PASSIVE ENVIRONMENTAL RADON NOMITOR (PERM)

    E-Print Network [OSTI]

    Boegel, M.L.

    2010-01-01

    LBL PASSIVE ENVIRONMENTAL RADON MONITOR (PERM) HASTH M. L.LBL PASSIVE ENVIRONMENTAL RADON MONITOR (PERM) M.L. Boegel,LBL PASSIVE ENVIRONMENTAL RADON MONITOR (PERM) CONTENTS:

  7. HUMAN CONFORT AND AUXILIARY CONTROL CONSIDERATIONS IN PASSIVE SOLAR STRUCTURES

    E-Print Network [OSTI]

    Place, Wayne

    2012-01-01

    area for the base passive building, the performance ofcon- temporary passive design, the building's pro- portions,Comfort in Passive Solar Heated Buildings." Los Alamos

  8. NATURAL CONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSIS AND RESULTS

    E-Print Network [OSTI]

    Gadgil, Ashok; Bauman, Fred; Kammerud, Ronald

    2008-01-01

    CONVECTION IN PASSIVE SOLAR BUILDINGS: ANALYSIS AND RESULTSCONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSISin a direct gain passive solar building; this is described

  9. Comparing New-Technology Passive Warming Versus Traditional Passive Warming Methods for Optimizing Perioperative Body Core Temperature

    E-Print Network [OSTI]

    Bender, M; Self, B; Schroeder, E; Giap, B

    2015-01-01

    BCG Medical provided the new-technology passive warmingpersonal copy Comparing New-Technology Passive Warmingreducing hypothermia. New-technology passive warming holds

  10. MEAN MONTHLY PERFORMANCE OF PASSIVE SOLAR HEATERS

    E-Print Network [OSTI]

    Place, W.

    2011-01-01

    PERFORMANCE OF PASSIVE SOLAR WATER HEATERS W. Place, M.PERFORMANCE OF PASSIVE SOLAR WATER HEATERS* We Place, M.The Performance of Solar Water Heaters with Natu)""al

  11. MEAN MONTHLY PERFORMANCE OF PASSIVE SOLAR HEATERS

    E-Print Network [OSTI]

    Place, W.

    2011-01-01

    I For the compact heater, the solar absorption rate equalsPERFORMANCE OF PASSIVE SOLAR WATER HEATERS W. Place, M.PERFORMANCE OF PASSIVE SOLAR WATER HEATERS* We Place, M.

  12. ReviewCapture Passive Active

    E-Print Network [OSTI]

    Mankoff, Jennifer

    wearable sensors such as a camera, audio recorder, GPS logger, accelerometer, passive infrared, light, and temperature sensors. Automatically suggest cues from lifelog data based on content and context analysis Memory Impairment evaluation results problem Episodic memory impairment is common for over 26 million

  13. How to Make Theoretically Passive Reduced-Order Models Passive in Practice

    E-Print Network [OSTI]

    California at Davis, University of

    1 How to Make Theoretically Passive Reduced-Order Models Passive in Practice Zhaojun Bai Peter- stable and non-passive models even when such outcomes are theoretically proven to be impossibleMPVL that, even in practice, is guaranteedto produce stable and passive models for all the circuits

  14. Tips: Passive Solar Heating and Cooling | Department of Energy

    Office of Environmental Management (EM)

    Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling July 27, 2014 - 4:18pm Addthis Tips: Passive Solar Heating and Cooling Using passive solar design to heat...

  15. PASSIVE FEEDFORWARD APPROACH TO BILATERAL TELEOPERATED MANIPULATORS

    E-Print Network [OSTI]

    Li, Perry Y.

    PASSIVE FEEDFORWARD APPROACH TO BILATERAL TELEOPERATED MANIPULATORS #3; Perry Y. Li + and Dongjun bilateral teleoperated manipulator system which ensures that the closed loop system is energetically passive, and that the coupling between the system and any strictly passive environment is stable. The control objective

  16. Passive Scalar Evolution in Peripheral Region

    E-Print Network [OSTI]

    Fominov, Yakov

    Passive Scalar Evolution in Peripheral Region V. V. Lebedev Landau Institute for Theoretical investigate the passive scalar (concentration of pollutants or temperature) evolution in the random (turbulent stages of the passive scalar homogenization (decay). There are some peculiarities of the decay related

  17. Imaging passive seismic data Brad Artman

    E-Print Network [OSTI]

    Imaging passive seismic data Brad Artman brad@sep.stanford.edu Submitted to Geophysics March 2005, CA 94305-2215 ABSTRACT Passive seismic imaging is the process of synthesizing the wealth to produce a subsurface image. For passively acquired data, migration is even more important than for active

  18. Cope's Rule & Passive versus Driven Trends

    E-Print Network [OSTI]

    Cope's Rule & Passive versus Driven Trends · Key concepts ­ Traditional explanations of Cope's Rule clade ­ Evolutionary trends can be either passive or driven (or some combination of both). · As a clade diversifies passively the mean increases while the minimum is unchanged. In a driven trend both the mean

  19. Activity-induced phase separation and self-assembly in mixtures of active and passive particles

    E-Print Network [OSTI]

    Joakim Stenhammar; Raphael Wittkowski; Davide Marenduzzo; Michael E. Cates

    2015-01-07

    We investigate the phase behavior and kinetics of a monodisperse mixture of active (\\textit{i.e.}, self-propelled) and passive isometric Brownian particles through Brownian dynamics simulations and theory. As in a purely active system, motility of the active component triggers phase separation into a dense and a dilute phase; in the dense phase we further find active-passive segregation, with "rafts" of passive particles in a "sea" of active particles. We find that phase separation from an initially disordered mixture can occur with as little as 15 percent of the particles being active. Finally, we show that a system prepared in a suitable fully segregated initial state reproducibly self-assembles an active "corona" which triggers crystallization of the passive core by initiating a compression wave. Our findings are relevant to the experimental pursuit of directed self-assembly using active particles.

  20. Passive solar design handbook. Volume III. Passive solar design analysis

    SciTech Connect (OSTI)

    Jones, R.W.; Balcomb, J.D.; Kosiewicz, C.E.; Lazarus, G.S.; McFarland, R.D.; Wray, W.O.

    1982-07-01

    Simple analytical methods concerning the design of passive solar heating systems are presented with an emphasis on the average annual heating energy consumption. Key terminology and methods are reviewed. The solar load ratio (SLR) is defined, and its relationship to analysis methods is reviewed. The annual calculation, or Load Collector Ratio (LCR) method, is outlined. Sensitivity data are discussed. Information is presented on balancing conservation and passive solar strategies in building design. Detailed analysis data are presented for direct gain and sunspace systems, and details of the systems are described. Key design parameters are discussed in terms of their impact on annual heating performance of the building. These are the sensitivity data. The SLR correlations for the respective system types are described. The monthly calculation, or SLR method, based on the SLR correlations, is reviewed. Performance data are given for 9 direct gain systems and 15 water wall and 42 Trombe wall systems. (LEW)

  1. Driven active and passive nematics

    E-Print Network [OSTI]

    Sumesh P. Thampi; Ramin Golestanian; Julia M. Yeomans

    2015-04-25

    We investigate similarities in the micro-structural dynamics between externally driven and actively driven nematics. Walls, lines of strong deformations in the director field, and topological defects are characteristic features of an active nematic. Similar structures form in driven passive nematics when there are inhomogeneities in imposed velocity gradients due to non-linear flow fields or geometrical constraints. Specifically, pressure driven flow of a tumbling passive nematic in an expanding-contracting channel produces walls and defects similar to those seen in active nematics. We also study the response of active nematics to external driving, confirming that imposed shear suppresses the hydrodynamic instabilities. We show that shear fields can lead to wall alignments and the localisation of active turbulence.

  2. 2011 Waves -1 STANDING WAVES

    E-Print Network [OSTI]

    Gustafsson, Torgny

    2011 Waves - 1 STANDING WAVES ON A STRING The objectives of the experiment are: · To show that standing waves can be set up on a string. · To determine the velocity of a standing wave. · To understand of waves. A #12;2011 Waves - 2 A standing wave is caused by superposing two similar (same frequency

  3. Passive solar in China: traditional and new

    SciTech Connect (OSTI)

    Balcomb, J.D.; Balcomb, S.A.

    1986-04-01

    The authors' observations of a tradition of passive solar architecture in northern China are described. Tendencies for modern buildings to depart from this tradition are noted. Major passive solar research programs are discussed and experimental buildings are illustrated. It is concluded that the Chinese could realize a major advantage by combining their strong tradition of passive solar architecture with modern insulation methods and improved glazing systems.

  4. Gap between active and passive solar heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1985-01-01

    The gap between active and passive solar could hardly be wider. The reasons for this are discussed and advantages to narrowing the gap are analyzed. Ten years of experience in both active and passive systems are reviewed, including costs, frequent problems, performance prediction, performance modeling, monitoring, and cooling concerns. Trends are analyzed, both for solar space heating and for service water heating. A tendency for the active and passive technologies to be converging is observed. Several recommendations for narrowing the gap are presented.

  5. Physics of passive solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01

    Primary emphasis in the paper is on methods of characterizing and analyzing passive solar buildings. Simplifying assumptions are described which make this analysis tractable without compromising significant accuracy or loss of insight into the basic physics of the situation. The overall nature of the mathematical simulation approach is described. Validation procedures based on data from test rooms and monitored buildings are outlined. Issues of thermal comfort are discussed. Simplified methods of analysis based on correlation procedures are reported and the nature of the economic conservation-solar optimization process is explored. Future trends are predicted.

  6. Rules of thumb for passive solar heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1980-01-01

    Rules of thumb are given for passive solar systems for: (1) sizing solar glazing for 219 cities, (2) sizing thermal storage mass, and (3) building orientation.

  7. Passive Microwave Systems (Rees Chapter 7)

    E-Print Network [OSTI]

    Sandwell, David T.

    Passive Microwave Systems (Rees Chapter 7) At wavelengths greater than about 2 cm and less than 10 radiation from the Earth dominates". Microwaves penetrate clouds and since the signal is from thermal emissions, passive microwave measurements can be made in all weather and in daytime or nighttime

  8. Passive ice freezing-releasing heat pipe

    DOE Patents [OSTI]

    Gorski, Anthony J. (Lemont, IL); Schertz, William W. (Batavia, IL)

    1982-01-01

    A heat pipe device has been developed which permits completely passive ice formation and periodic release of ice without requiring the ambient temperature to rise above the melting point of water. This passive design enables the maximum amount of cooling capacity to be stored in the tank.

  9. Roots, States, and Stative Passives David Embick

    E-Print Network [OSTI]

    Embick, David

    with Stative Passive formation; and (ii) whether building Target State meanings into (certain) RootsRoots, States, and Stative Passives David Embick University of Pennsylvania ***** Roots Workshop be part of a Root's meaning, by BT:R PLAN: Reexamine/reanalyze the generalizations that building Target

  10. Experimentally Determining Passivity Indices: Theory and Simulation

    E-Print Network [OSTI]

    Antsaklis, Panos

    at the University of Notre Dame ISIS-2013-002 Abstract The passivity index framework is an alternative method of characterizing energy dissipation in systems. As an analysis tool, it can be used to assess the level. Particularly, we consider testing passivity indices for vehicle systems with the adaptive cruise control (ACC

  11. Global longterm passive microwave satellitebased retrievals of vegetation optical depth

    E-Print Network [OSTI]

    Evans, Jason

    Global longterm passive microwave satellitebased retrievals of vegetation optical depth Yi Y. Liu,1 optical depth (VOD) retrievals from three satellitebased passive microwave instruments were merged longterm passive microwave satellitebased retrievals of vegetation optical depth, Geophys. Res. Lett., 38

  12. INCREMENTAL COOLING LOAD DETERMINATION FOR PASSIVE DIRECT GAIN HEATING SYSTEMS

    E-Print Network [OSTI]

    Sullivan, Paul W.

    2013-01-01

    an increment of 1 ft to a passive building in each of the 25Passive and Hybrid Division, of the Office of Solar Applica- tions for Buildings,building thermal dynamics including features of particular interest, such as passive

  13. Passive Solar Building Design Basics | Department of Energy

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

    The difference between a passive solar home and a conventional home is design. Passive solar homes and other buildings are designed to take advantage of the local climate. Passive...

  14. Passive States for Essential Observers

    E-Print Network [OSTI]

    Robert Strich

    2008-01-23

    The aim of this note is to present a unified approach to the results given in \\cite{bb99} and \\cite{bs04} which also covers examples of models not presented in these two papers (e.g. $d$-dimensional Minkowski space-time for $d\\geq 3$). Assuming that a state is passive for an observer travelling along certain (essential) worldlines, we show that this state is invariant under the isometry group, is a KMS-state for the observer at a temperature uniquely determined by the structure constants of the Lie algebra involved and fulfills (a variant of) the Reeh-Schlieder property. Also the modular objects associated to such a state and the observable algebra of an observer are computed and a version of weak locality is examined.

  15. Wave Motion

    E-Print Network [OSTI]

    M. Carcione, F. Cavallini, Simulation of waves in porn-viscoelastic rocks Saturated by immiscible ?uids. Numerical evidence ofa second slow wave,]. Comput.

  16. Vehicle Speed Estimation using Acoustic Wave Patterns Volkan Cevher, Member, IEEE, Rama Chellappa, Fellow, IEEE

    E-Print Network [OSTI]

    Cevher, Volkan

    1 Vehicle Speed Estimation using Acoustic Wave Patterns Volkan Cevher, Member, IEEE, Rama Chellappa length, and tire track length by jointly estimating its acoustic wave pattern with a single passive acoustic sensor that records the vehicle's drive-by noise. The acoustic wave pattern is determined using

  17. Comparing New-Technology Passive Warming Versus Traditional Passive Warming Methods for Optimizing Perioperative Body Core Temperature

    E-Print Network [OSTI]

    Bender, M; Self, B; Schroeder, E; Giap, B

    2015-01-01

    provided the new-technology passive warming devices (Opt-on the most effective passive warming method to improve theComparing New-Technology Passive Warming Versus Traditional

  18. Low Cost Manufacturable Microchannel Systems for Passive PEM...

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

    Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Low Cost Manufacturable Microchannel Systems for Passive PEM Water Management Part of a 100 million...

  19. Low-Cost Manufacturable Microchannel Systems for Passive PEM...

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

    Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management This presentation, which...

  20. Yahoo! Compute Coop Next Generation Passive Cooling Design for...

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

    Yahoo Compute Coop Next Generation Passive Cooling Design for Data Centers Yahoo Compute Coop Next Generation Passive Cooling Design for Data Centers yahoopassivecooling.pdf...

  1. Optimization of an Advanced Passive/Active Diesel Emission Control...

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

    an Advanced PassiveActive Diesel Emission Control System Optimization of an Advanced PassiveActive Diesel Emission Control System Evaluation of PM exhaust aftertreatment...

  2. Radiograph and passive data analysis using mixed variable optimization...

    Office of Scientific and Technical Information (OSTI)

    Patent: Radiograph and passive data analysis using mixed variable optimization Citation Details In-Document Search Title: Radiograph and passive data analysis using mixed variable...

  3. Integration of Full Tensor Gravity and ZTEM Passive Low Frequency...

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

    Full Tensor Gravity and ZTEM Passive Low Frequency EM Instruments for Simultaneous Data Acquisition Integration of Full Tensor Gravity and ZTEM Passive Low Frequency EM Instruments...

  4. Evaluation of Passive and Active Soot Filters for Removal of...

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

    Passive and Active Soot Filters for Removal of Particulate Emissions from Diesel Engines Evaluation of Passive and Active Soot Filters for Removal of Particulate Emissions from...

  5. A Revealing Look Inside Passive and Active DPF Regeneration:...

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

    A Revealing Look Inside Passive and Active DPF Regeneration: In-Situ Optical Analysis of Ash Formation and Transport A Revealing Look Inside Passive and Active DPF Regeneration:...

  6. Passive environmental temperature control system

    DOE Patents [OSTI]

    Corliss, John M. (Columbus, OH); Stickford, George H. (Columbus, OH)

    1981-01-01

    Passive environmental heating and cooling systems are described, which utilize heat pipes to transmit heat to or from a thermal reservoir. In a solar heating system, a heat pipe is utilized to carry heat from a solar heat absorber plate that receives sunlight, through a thermal insulation barrier, to a heat storage wall, with the outer end of the pipe which is in contact with the solar absorber being lower than the inner end. The inclining of the heat pipe assures that the portion of working fluid, such as Freon, which is in a liquid phase will fall by gravity to the outer end of the pipe, thereby assuring diode action that prevents the reverse transfer of heat from the reservoir to the outside on cool nights. In a cooling system, the outer end of the pipe which connects to a heat dissipator, is higher than the inner end that is coupled to a cold reservoir, to allow heat transfer only out of the reservoir to the heat dissipator, and not in the reverse direction.

  7. PASSIVE DETECTION OF VEHICLE LOADING

    SciTech Connect (OSTI)

    Garrett, A.

    2012-01-03

    The Digital Imaging and Remote Sensing Laboratory (DIRS) at the Rochester Institute of Technology, along with the Savannah River National Laboratory is investigating passive methods to quantify vehicle loading. The research described in this paper investigates multiple vehicle indicators including brake temperature, tire temperature, engine temperature, acceleration and deceleration rates, engine acoustics, suspension response, tire deformation and vibrational response. Our investigation into these variables includes building and implementing a sensing system for data collection as well as multiple full-scale vehicle tests. The sensing system includes; infrared video cameras, triaxial accelerometers, microphones, video cameras and thermocouples. The full scale testing includes both a medium size dump truck and a tractor-trailer truck on closed courses with loads spanning the full range of the vehicle's capacity. Statistical analysis of the collected data is used to determine the effectiveness of each of the indicators for characterizing the weight of a vehicle. The final sensing system will monitor multiple load indicators and combine the results to achieve a more accurate measurement than any of the indicators could provide alone.

  8. The Future of Passive Solar in Industry 

    E-Print Network [OSTI]

    Wulfinghoff, D. R.

    1985-01-01

    Passive solar is a family of techniques for the direct use of sunlight for illumination and heating. Industrial facilities have characteristics which particularly favor the use of these techniques. This paper examines ...

  9. Passive machine augmented composite for multifunctional properties 

    E-Print Network [OSTI]

    Kim, Jong Hyun

    2005-11-01

    This dissertation studies by experiment and numerical analysis an advanced composite material (Machine Augmented Composite or MAC) for enhancement of the passive damping while maintaining its stiffness. This MAC is composed of a pre-buckled wall...

  10. The Soil Moisture Active Passive (SMAP) Mission

    E-Print Network [OSTI]

    Entekhabi, Dara

    The Soil Moisture Active Passive (SMAP) mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council's Decadal Survey. SMAP will make global measurements of ...

  11. Guide to Passive Solar Home Design

    SciTech Connect (OSTI)

    2010-10-01

    Passive solar design incorporates features in your home and its natural surroundings that harness the sun's low rays in winter and deflect the sun's high rays in the summer.

  12. Energy savings obtainable through passive solar techniques

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1980-01-01

    A passive solar energy system is one in which the thermal energy flow is by natural means, that is by radiation, conduction, or natural convection. The purpose of the paper is to provide a survey of passive solar heating experience, especially in the US. Design approaches are reviewed and examples shown. Misconceptions are discussed. Advantages are listed. The Los Alamos program of performance simulation and evaluation is described and a simplified method of performance estimation is outlined.

  13. Semi-Passive Replication Xavier Defago Andre Schiper Nicole Sergent

    E-Print Network [OSTI]

    Défago, Xavier

    Semi-Passive Replication Xavier D´efago Andr´e Schiper Nicole Sergent D´epartement d This paper presents the semi-passive replication tech- nique ­ a variant of passive replication ­ that can on a primary. Passive replication is a popular replication technique since it can tolerate non

  14. Passive and Active Flow Control by Swimming Fishes and Mammals

    E-Print Network [OSTI]

    Lauder, George V.

    Passive and Active Flow Control by Swimming Fishes and Mammals F.E. Fish1 and G.V. Lauder2 1 the body and appendages both passively and actively. Passive mechanisms rely on structural hydrodynamics is related largely to flow control. Animals have been hypothesized to control flow both passively

  15. Passive Tracer Dispersion with Random or Periodic Source \\Lambda

    E-Print Network [OSTI]

    Passive Tracer Dispersion with Random or Periodic Source \\Lambda Jinqiao Duan Clemson University sources on the pattern formation and long­time behavior of concentration pro­ files of passive tracers Introduction The dispersion of passive tracers (or passive scalars) occur in various geo­ physical

  16. Passive Tracer Dispersion with Random or Periodic Source

    E-Print Network [OSTI]

    Passive Tracer Dispersion with Random or Periodic Source Jinqiao Duan Clemson University sources on the pattern formation and long-time behavior of concentration pro- #12;les of passive tracers #12;1 Introduction The dispersion of passive tracers (or passive scalars) occur in various geo

  17. Convective Cooling and Passive Stack Improvements in Motors (Presentation)

    SciTech Connect (OSTI)

    Bennion, K.

    2014-06-01

    This presentation discusses current research at NREL in convective cooling and passive stack improvements in motors.

  18. Active control of passive acoustic fields: Passive synthetic apertureDoppler beamforming with data from an autonomous

    E-Print Network [OSTI]

    Smith, Jerome A.

    Active control of passive acoustic fields: Passive synthetic apertureÕDoppler beamforming with data without the use of an active source under control by the receiver. In this passive case, the properties interest. Passive synthetic aperture sonar has no ana- log in the radar community. In contrast

  19. METHODOLOGY FOR PASSIVE ANALYSIS OF A UNIVERSITY INTERNET LINK / TALK 13 Methodology for Passive Analysis of a University

    E-Print Network [OSTI]

    California at San Diego, University of

    METHODOLOGY FOR PASSIVE ANALYSIS OF A UNIVERSITY INTERNET LINK / TALK 13 Methodology for Passive # Abstract--- Passive monitoring of Internet links can e#­ ciently provide valuable data on a wide variety and research questions using our passive measurement methodology. Keywords--- Network Performance Monitoring

  20. Discreet passive explosive detection through 2-sided waveguided fluorescence

    DOE Patents [OSTI]

    Harper, Ross James (Stillwater, OK); la Grone, Marcus (Cushing, OK); Fisher, Mark (Stillwater, OK)

    2011-10-18

    The current invention provides a passive sampling device suitable for collecting and detecting the presence of target analytes. In particular, the passive sampling device is suitable for detecting nitro-aromatic compounds. The current invention further provides a passive sampling device reader suitable for determining the collection of target analytes. Additionally, the current invention provides methods for detecting target analytes using the passive sampling device and the passive sampling device reader.

  1. Load attenuating passively adaptive wind turbine blade

    DOE Patents [OSTI]

    Veers, Paul S.; Lobitz, Donald W.

    2003-01-07

    A method and apparatus for improving wind turbine performance by alleviating loads and controlling the rotor. The invention employs the use of a passively adaptive blade that senses the wind velocity or rotational speed, and accordingly modifies its aerodynamic configuration. The invention exploits the load mitigation prospects of a blade that twists toward feather as it bends. The invention includes passively adaptive wind turbine rotors or blades with currently preferred power control features. The apparatus is a composite fiber horizontal axis wind-turbine blade, in which a substantial majority of fibers in the blade skin are inclined at angles of between 15 and 30 degrees to the axis of the blade, to produces passive adaptive aeroelastic tailoring (bend-twist coupling) to alleviate loading without unduly jeopardizing performance.

  2. Load attenuating passively adaptive wind turbine blade

    DOE Patents [OSTI]

    Veers, Paul S. (Albuquerque, NM); Lobitz, Donald W. (Albuquerque, NM)

    2003-01-01

    A method and apparatus for improving wind turbine performance by alleviating loads and controlling the rotor. The invention employs the use of a passively adaptive blade that senses the wind velocity or rotational speed, and accordingly modifies its aerodynamic configuration. The invention exploits the load mitigation prospects of a blade that twists toward feather as it bends. The invention includes passively adaptive wind turbine rotors or blades with currently preferred power control features. The apparatus is a composite fiber horizontal axis wind-turbine blade, in which a substantial majority of fibers in the blade skin are inclined at angles of between 15 and 30 degrees to the axis of the blade, to produces passive adaptive aeroelastic tailoring (bend-twist coupling) to alleviate loading without unduly jeopardizing performance.

  3. Passive infrared bullet detection and tracking

    DOE Patents [OSTI]

    Karr, Thomas J. (Alamo, CA)

    1997-01-01

    An apparatus and method for passively detecting a projectile such as, for example, a bullet using a passive infrared detector. A passive infrared detector is focused onto a region in which a projectile is expected to be located. Successive images of infrared radiation in the region are recorded. Background infrared radiation present in the region is suppressed such that second successive images of infrared radiation generated by the projectile as the projectile passes through the region are produced. A projectile path calculator determines the path and other aspects of the projectile by using the second successive images of infrared radiation generated by the projectile. The present invention, in certain embodiments, also determines the origin of the path of the projectile and takes a photograph of the area surrounding the origin and/or fires at least one projectile at the area surrounding the origin of the path of the projectile.

  4. Passive cooling system for a vehicle

    DOE Patents [OSTI]

    Hendricks, Terry Joseph; Thoensen, Thomas

    2005-11-15

    A passive cooling system for a vehicle (114) transfers heat from an overheated internal component, for example, an instrument panel (100), to an external portion (116) of the vehicle (114), for example, a side body panel (126). The passive cooling system includes one or more heat pipes (112) having an evaporator section (118) embedded in the overheated internal component and a condenser section (120) at the external portion (116) of the vehicle (114). The evaporator (118) and condenser (120) sections are in fluid communication. The passive cooling system may also include a thermally conductive film (140) for thermally connecting the evaporator sections (118) of the heat pipes (112) to each other and to the instrument panel (100).

  5. Passive Cooling System for a Vehicle

    DOE Patents [OSTI]

    Hendricks, T. J.; Thoensen, T.

    2005-11-15

    A passive cooling system for a vehicle (114) transfers heat from an overheated internal component, for example, an instrument panel (100), to an external portion (116) of the vehicle (114), for example, a side body panel (126). The passive cooling system includes one or more heat pipes (112) having an evaporator section (118) embedded in the overheated internal component and a condenser section (120) at the external portion (116) of the vehicle (114). The evaporator (118) and condenser (120) sections are in fluid communication. The passive cooling system may also include a thermally conductive film (140) for thermally connecting the evaporator sections (118) of the heat pipes (112) to each other and to the instrument panel (100).

  6. Passive absolute age and temperature history sensor

    SciTech Connect (OSTI)

    Robinson, Alex; Vianco, Paul T.

    2015-11-10

    A passive sensor for historic age and temperature sensing, including a first member formed of a first material, the first material being either a metal or a semiconductor material and a second member formed of a second material, the second material being either a metal or a semiconductor material. A surface of the second member is in contact with a surface of the first member such that, over time, the second material of the second member diffuses into the first material of the first member. The rate of diffusion for the second material to diffuse into the first material depends on a temperature of the passive sensor. One of the electrical conductance, the electrical capacitance, the electrical inductance, the optical transmission, the optical reflectance, or the crystalline structure of the passive sensor depends on the amount of the second material that has diffused into the first member.

  7. Site specific passive acoustic detection and densities of humpback whale calls off the coast of California /

    E-Print Network [OSTI]

    Helble, Tyler Adam

    2013-01-01

    61 3.2 Passive acoustic recording of transiting humpback100 Chapter 4 Calibrating passive acoustic monitoring: whaledensity estimates from passive acoustics . . . . . . .

  8. Active, but not passive cigarette smoking was inversely associated with mammographic density

    E-Print Network [OSTI]

    2010-01-01

    ORIGINAL PAPER Active, but not passive cigarette smoking wasAccumulating evidence on passive and active smoking andA (2002) Smoking (active and passive) and breast cancer:

  9. Passive stiffness of hindlimb muscles in anurans with distinct locomotor specializations

    E-Print Network [OSTI]

    Danos, N; Azizi, E

    2015-01-01

    as: Danos, N. , Azizi, E. , Passive stiffness of hindlimbEffects of stretching on passive muscle tension and responseLocomotor function shapes the passive mechanical properties

  10. Large scale passive force-displacement and dynamic earth pressure experiments and simulations

    E-Print Network [OSTI]

    Wilson, Patrick Richard

    2009-01-01

    for the calculation of passive pressure, active pressure andand Rollins, K. (2006). “Passive earth pressure mobilizationand Mokwa, R. (2001). “Passive earth pressures: theories and

  11. Measurements of Passive Correction of Magnetization Higher Multipoles in One Meter Long Dipoles

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    H. E. Fisk, the idea of passive presented at the Snowmasset al. , IEEE Fermilab Passive Transactions on MagneticsOO1812 MEASUREMENTS OF PASSIVE CORRECTION OF MAGNETIZATION

  12. Passive Superconductor: A Viable Method of Controlling Magnetization Multipoles in the SSC Dipole

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    superconductor is required for passive correction than wouldcoils. ) The case of passive superconductor to correct thecommunication on the use of a passive superconductor to

  13. Correction of Magnetization Sextupole and Decapole in a 5 Centimeter Bore SSC Dipole Using Passive Superconductor

    E-Print Network [OSTI]

    Green, M.A.

    2011-01-01

    The Idea of Passive Superconductor Correction," presented aton the Fermilab Passive Superconductor Test," ICFA Workshop,methods of passive superconductor correction will reduce

  14. A CLASSIFICATION SCHEME FOR THE COMMON PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS

    E-Print Network [OSTI]

    Holtz, Michael J.

    2011-01-01

    INTRODUCTION A passive building design attempts, within eco-and features of the building, the passive system componentsenergy. Passive cooling also uses elements of the building

  15. Wave represents displacement Wave represents pressure Source -Sound Waves

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    is wavelength Number of crests passing a point in 1 second is frequency Wave represents pressure Target - Radio. The Sound Waves simulation becomes the source of an analogical mapping to Radio Waves. Concepts Radio Waves 1 - Sound Waves references water waves 2 - Water is analogy for Sound Waves 3 - Radio

  16. Heterojunction solar cell with passivated emitter surface

    DOE Patents [OSTI]

    Olson, Jerry M. (Lakewood, CO); Kurtz, Sarah R. (Golden, CO)

    1994-01-01

    A high-efficiency heterojunction solar cell wherein a thin emitter layer (preferably Ga.sub.0.52 In.sub.0.48 P) forms a heterojunction with a GaAs absorber layer. A passivating window layer of defined composition is disposed over the emitter layer. The conversion efficiency of the solar cell is at least 25.7%. The solar cell preferably includes a passivating layer between the substrate and the absorber layer. An anti-reflection coating is preferably disposed over the window layer.

  17. Heterojunction solar cell with passivated emitter surface

    DOE Patents [OSTI]

    Olson, J.M.; Kurtz, S.R.

    1994-05-31

    A high-efficiency heterojunction solar cell is described wherein a thin emitter layer (preferably Ga[sub 0.52]In[sub 0.48]P) forms a heterojunction with a GaAs absorber layer. A passivating window layer of defined composition is disposed over the emitter layer. The conversion efficiency of the solar cell is at least 25.7%. The solar cell preferably includes a passivating layer between the substrate and the absorber layer. An anti-reflection coating is preferably disposed over the window layer. 1 fig.

  18. Passive solar design handbook. Volume two of two volumes: passive solar design analysis

    SciTech Connect (OSTI)

    Balcomb, J.D.; Barley, D.; McFarland, R.; Perry, J. Jr.; Wray, W.; Noll, S.

    1980-01-01

    A manual for the design and performance evaluation and analysis of passive solar heating systems is presented. Two passive solar building types are analyzed: direct gain and thermal storage walls. Rules of thumb for the schematic design phase and simplified procedures for the design development phase are described. Analysis methods for the construction documents phase are given. The design procedure for fan-forced rock beds for hybrid systems is presented. Economic analysis methods for passive solar buildings are described. Tables of monthly average solar radiation, temperature, and degree-days for various locations in the US and southern Canada are included. (WHK)

  19. Passive background correction method for spatially resolved detection

    DOE Patents [OSTI]

    Schmitt, Randal L. (Tijeras, NM); Hargis, Jr., Philip J. (Albuquerque, NM)

    2011-05-10

    A method for passive background correction during spatially or angularly resolved detection of emission that is based on the simultaneous acquisition of both the passive background spectrum and the spectrum of the target of interest.

  20. Passive Ammonia SCR for Lean Burn SIDI Engines | Department of...

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

    Ammonia SCR for Lean Burn SIDI Engines Passive Ammonia SCR for Lean Burn SIDI Engines Passive NH3 SCR has been demonstrated as a high efficiency and low cost alternative lean NOx...

  1. Integration of a "Passive Water Recovery" MEA into a Portable...

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

    Integration of a "Passive Water Recovery" MEA into a Portable DMFC Power Supply Integration of a "Passive Water Recovery" MEA into a Portable DMFC Power Supply Download slides from...

  2. Passive Reduced Order Modeling of Multiport Interconnects via Semidefinite Programming

    E-Print Network [OSTI]

    Mahmood, Zohaib

    In this paper we present a passive reduced order modeling algorithm for linear multiport interconnect structures. The proposed technique uses rational fitting via semidefinite programming to identify a passive transfer ...

  3. Active and passive coping strategies in chronic pain patients 

    E-Print Network [OSTI]

    Snow-Turek, Andrea Lynn

    1994-01-01

    This study assessed the validity of an active/passive conceptualization of coping in a sample of chronic pain patients (N = 84). The validity of active and passive coping dimensions was supported. The Coping Strategies ...

  4. Prediction techniques for passive systems' probability of failure

    E-Print Network [OSTI]

    Cavalieri d'Oro, Edoardo

    2007-01-01

    This work fits into the wider framework of the on-going debate centered on Passive System reliability. Its aim is to provide insights into the design of a dependable method to evaluate the reliability of Passive Systems. ...

  5. Defeating Passive Eavesdropping with Quantum Illumination

    E-Print Network [OSTI]

    Jeffrey H. Shapiro

    2009-04-28

    Quantum illumination permits Alice and Bob to communicate at 50 Mbit/s over 50 km of low-loss fiber with error probability less than 10^(-6) while the optimum passive eavesdropper's error probability must exceed 0.28.

  6. Passive safety injection system using borated water

    DOE Patents [OSTI]

    Conway, Lawrence E. (Allegheny, PA); Schulz, Terry L. (Westmoreland, PA)

    1993-01-01

    A passive safety injection system relies on differences in water density to induce natural circulatory flow patterns which help maintain prescribed concentrations of boric acid in borated water, and prevents boron from accumulating in the reactor vessel and possibly preventing heat transfer.

  7. Photodetectors with passive thermal radiation control

    DOE Patents [OSTI]

    Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); Dodson, Brian W. (Albuquerque, NM)

    2001-10-02

    A new class of photodetectors which include means for passive shielding against undesired thermal radiation is disclosed. Such devices can substitute in applications currently requiring cooled optical sensors, such as IR detection and imaging. This description is included for purposes of searching, and is not intended to limit or otherwise influence the interpretation of the present invention.

  8. Design tools for passive solar applications

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1986-04-01

    Examples of passive solar design tools are given, categorized as either evaluation tools or guidance tools. A trend toward microcomputer-based tools is noted; however, these are usually developed for use by engineers rather than architects. The need for more instructive tools targeted specifically to designers is emphasized.

  9. Evaluation of passive solar retrofit options

    SciTech Connect (OSTI)

    Ben-David, S.; Kirchemen, C.; Martin, S.; Noll, S.; Roach, F.

    1980-01-01

    An evaluation framework has been developed which allows for the assessment of the role of passive solar retrofit in the nationwide reduction of conventional fuel use. Three types of analysis are proposed within this framework: the physical/technical capability of the present housing stock to incorporate passive solar retrofit; the economic feasibility of the application of retrofit designs; and the actual market potential or acceptance of these alternative retrofit options. Each type of analysis has specific data requirements and a series of evaluation procedures to help establish estimates of the potential for passive solar retrofit in the present housing stock. The data requirements with their respective sources and evaluation procedures for the first two types of analysis-physical/technical setting and economic feasibility, are examined. A distinction is drawn between community specific case studies and more generalized national assessments. Information derived from these three types of analysis, whether case specific or national in scope, can then be used in an evaluation of potential economic impacts. The establishment of regional economic benefits and costs werve as a measure of the merit or attractiveness of the implementation of a passive solar retrofit program.

  10. Submerged passively-safe power plant

    SciTech Connect (OSTI)

    Herring, J.S.

    1991-12-31

    The invention as presented consists of a submerged passively-safe power station including a pressurized water reactor capable of generating at least 600 MW of electricity, encased in a double hull vessel, and provides fresh water by using the spent thermal energy in a multistage flash desalination process.

  11. Plasticity in Passive Cell Mechanics D. Ambrosia

    E-Print Network [OSTI]

    Ambrosi, Davide

    Plasticity in Passive Cell Mechanics D. Ambrosia , P. Ciarlettab,c a MOX-Dipartimento di Matematica'Alembert, UMR 7190, Universit´e Pierre et Marie Curie - Paris 6 4 place Jusseu, Case 162, 75005 Paris, France c mechanics, plastic hardening 2000 MSC: 74C20, 92C05 1. Introduction The mechanical characterization

  12. Demonstrating Passivity and Dissipativity using Computational Methods

    E-Print Network [OSTI]

    Antsaklis, Panos

    is captured by an energy storage function. The rate energy is supplied by the environment can be specified by an energy supply rate. This supply rate can be chosen to capture system properties including passivity and L a particular energy supply rate, and then finding an energy storage function. Finding an energy storage

  13. Submerged passively-safe power plant

    DOE Patents [OSTI]

    Herring, J.S.

    1993-09-21

    The invention as presented consists of a submerged passively-safe power station including a pressurized water reactor capable of generating at least 600 MW of electricity, encased in a double hull vessel, and provides fresh water by using the spent thermal energy in a multistage flash desalination process. 8 figures.

  14. Submerged passively-safe power plant

    DOE Patents [OSTI]

    Herring, J. Stephen (Idaho Falls, ID)

    1993-01-01

    The invention as presented consists of a submerged passively-safe power station including a pressurized water reactor capable of generating at least 600 MW of electricity, encased in a double hull vessel, and provides fresh water by using the spent thermal energy in a multistage flash desalination process.

  15. Passive in Danish, English, and German Stefan Muller

    E-Print Network [OSTI]

    Passive in Danish, English, and German Stefan M¨uller Freie Universit¨at Berlin Bjarne �rsnes Freie://csli-publications.stanford.edu/HPSG/2013 M¨uller, Stefan, & �rsnes, Bjarne. (2013). Passive in Danish, English, and Ger- man. In Stefan M in the passive in Danish, English, and German can be accounted for. The three languages differ along

  16. GREAVES & FIGLIOZZI 1 COMMERCIAL VEHICLE TOUR DATA COLLECTION USING PASSIVE

    E-Print Network [OSTI]

    Bertini, Robert L.

    GREAVES & FIGLIOZZI 1 COMMERCIAL VEHICLE TOUR DATA COLLECTION USING PASSIVE GPS TECHNOLOGY: ISSUES information on commercial vehicle tours within an urban setting. The paper focuses on passive GPS methods of passive GPS technology in urban freight modelling and planning. Despite processing challenges, GPS

  17. PASSIVE BEHAVIOR BY THE SPOTTED DOLPHIN, STENELLA ATTENUATA, IN

    E-Print Network [OSTI]

    PASSIVE BEHAVIOR BY THE SPOTTED DOLPHIN, STENELLA ATTENUATA, IN TUNA PURSE SEINE NETS The purse and then recognized for its contribution to incidental mortality in 1975 is termed here "passive" behavior were recorded after each ofthe 25 net sets in which the rescue raft was used. The underwater passive

  18. Guaranteed Passive Balancing Transformations for Model Order Reduction

    E-Print Network [OSTI]

    Reif, Rafael

    Guaranteed Passive Balancing Transformations for Model Order Reduction Joel Phillips Cadence stable and efficient generation of the models, and preser- vation of system properties such as passivity. Algorithms such as PRIMA generate guaranteed-passive models, for systems with special internal structure

  19. Passive imaging and detection in cluttered media Josselin Garnier

    E-Print Network [OSTI]

    Garnier, Josselin

    Passive imaging and detection in cluttered media Josselin Garnier Laboratoire de Probabilit´es et passive sensor imaging with ambient noise sources by suitably migrating the cross correlations to subsequent eruptions. Cross correlations of noisy signals recorded by a passive sensor array can also

  20. Considering Passive Joints in Cooperative Manipulation as Functional Redundancy

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    Considering Passive Joints in Cooperative Manipulation as Functional Redundancy P°al Johan From. Further, it is shown how this can be used to represent the freedom of passive joints. The main developed can be used to show how the introduction of passive joints at the end of a kinematic chain gives

  1. THEORY OF PASSIVE MAGNETIC FIELD TRANSPORT OF PETROVAY

    E-Print Network [OSTI]

    Petrovay, Kristóf

    THEORY OF PASSIVE MAGNETIC FIELD TRANSPORT KRIST ' OF PETROVAY E¨otv¨os University, Department by the kinematics of the turbulence (i.e. it is ``passive''), and it can be described by a one­fluid model like mean to the dynamo layer must be thoroughly understood. This paper reviews the theory of passive magnetic field

  2. Dynamics of Passive Scalars and Probe Particles in Driven

    E-Print Network [OSTI]

    Dynamics of Passive Scalars and Probe Particles in Driven Diffusive Systems Sakuntala Chatterjee my parents #12;Contents Synopsis i 1 Introduction 1 1.1 Passive Scalar Advection . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Probe Particles in a Driven Diffusive Medium . . . . . . . . . . . 9 2 Dynamics of Passive

  3. PASSIVE TIMESTAMPING IN THE BOUNDED STORAGE MODEL SUBMISSION VERSION

    E-Print Network [OSTI]

    Ta-Shma, Amnon

    PASSIVE TIMESTAMPING IN THE BOUNDED STORAGE MODEL SUBMISSION VERSION Abstract. A timestamping scheme is passive if a stamper can stamp a document without com­ municating with any other player. The only communication done is at validation time. Passive timestamping has many advantages

  4. Exploiting Passive Dynamics with Variable Stiffness Actuation in Robot Brachiation

    E-Print Network [OSTI]

    Vijayakumar, Sethu

    Exploiting Passive Dynamics with Variable Stiffness Actuation in Robot Brachiation Jun Nakanishi.nakanishi@ed.ac.uk, sethu.vijayakumar@ed.ac.uk Abstract--This paper explores a passive control strategy with variable present our passive control strategy considering a pendulum with variable stiffness actuation. Then, we

  5. Passive Decomposition of Multiple Mechanical Systems under Coordination Requirements

    E-Print Network [OSTI]

    Lee, Dongjun

    Passive Decomposition of Multiple Mechanical Systems under Coordination Requirements Dongjun Lee interacting with environments and/or humans under coordination requirements. The key innovation is the passive coordination and energetic passivity of the closed- loop system. It decomposes the system dynamics into shape

  6. Vacuum Waves

    E-Print Network [OSTI]

    Paul S. Wesson

    2012-12-11

    As an example of the unification of gravitation and particle physics, an exact solution of the five-dimensional field equations is studied which describes waves in the classical Einstein vacuum. While the solution is essentially 5D in nature, the waves exist in ordinary 3D space, and may provide a way to test for an extra dimension.

  7. A CLASSIFICATION SCHEME FOR THE COMMON PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS

    E-Print Network [OSTI]

    Holtz, Michael J.

    2011-01-01

    Common Passive and Hybrid Heating Cooling Systems Michael].THE COMMON PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS

  8. A Novel Passive Millimeter Imager for Broad-Area Search - Final Report on Project PL09-NPMI-PD07 (PNNL-55180)

    SciTech Connect (OSTI)

    Tedeschi, Jonathan R.; Bernacki, Bruce E.; Kelly, James F.; Sheen, David M.; Harris, Robert V.; Hall, Thomas E.; Hatchell, Brian K.; Knopik, Clint D.; Lechelt, Wayne M.; McMakin, Douglas L.; Mendoza, Albert; Severtsen, Ronald H.; Valdez, Patrick LJ

    2011-12-31

    This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of a pixel. The purpose of the imager is to pinpoint suspicious locations for cuing subsequent higher-resolution imaging. The technical basis for the approach is to exploit thermal and polarization anomalies that distinguish man-made features from natural features.

  9. Evaluation of Alternate Stainless Steel Surface Passivation Methods

    SciTech Connect (OSTI)

    Clark, Elliot A.

    2005-05-31

    Stainless steel containers were assembled from parts passivated by four commercial vendors using three passivation methods. The performance of these containers in storing hydrogen isotope mixtures was evaluated by monitoring the composition of initially 50% H{sub 2} 50% D{sub 2} gas with time using mass spectroscopy. Commercial passivation by electropolishing appears to result in surfaces that do not catalyze hydrogen isotope exchange. This method of surface passivation shows promise for tritium service, and should be studied further and considered for use. On the other hand, nitric acid passivation and citric acid passivation may not result in surfaces that do not catalyze the isotope exchange reaction H{sub 2} + D{sub 2} {yields} 2HD. These methods should not be considered to replace the proprietary passivation processes of the two current vendors used at the Savannah River Site Tritium Facility.

  10. Passive heat transfer means for nuclear reactors

    DOE Patents [OSTI]

    Burelbach, James P. (Glen Ellyn, IL)

    1984-01-01

    An improved passive cooling arrangement is disclosed for maintaining adjacent or related components of a nuclear reactor within specified temperature differences. Specifically, heat pipes are operatively interposed between the components, with the vaporizing section of the heat pipe proximate the hot component operable to cool it and the primary condensing section of the heat pipe proximate the other and cooler component operable to heat it. Each heat pipe further has a secondary condensing section that is located outwardly beyond the reactor confinement and in a secondary heat sink, such as air ambient the containment, that is cooler than the other reactor component. Means such as shrouding normally isolated the secondary condensing section from effective heat transfer with the heat sink, but a sensor responds to overheat conditions of the reactor to open the shrouding, which thereby increases the cooling capacity of the heat pipe. By having many such heat pipes, an emergency passive cooling system is defined that is operative without electrical power.

  11. Passively damped vibration welding system and method

    DOE Patents [OSTI]

    Tan, Chin-An; Kang, Bongsu; Cai, Wayne W.; Wu, Tao

    2013-04-02

    A vibration welding system includes a controller, welding horn, an anvil, and a passive damping mechanism (PDM). The controller generates an input signal having a calibrated frequency. The horn vibrates in a desirable first direction at the calibrated frequency in response to the input signal to form a weld in a work piece. The PDM is positioned with respect to the system, and substantially damps or attenuates vibration in an undesirable second direction. A method includes connecting the PDM having calibrated properties and a natural frequency to an anvil of an ultrasonic welding system. Then, an input signal is generated using a weld controller. The method includes vibrating a welding horn in a desirable direction in response to the input signal, and passively damping vibration in an undesirable direction using the PDM.

  12. Germanium detector passivated with hydrogenated amorphous germanium

    DOE Patents [OSTI]

    Hansen, William L. (Walnut Creek, CA); Haller, Eugene E. (Berkeley, CA)

    1986-01-01

    Passivation of predominantly crystalline semiconductor devices (12) is provided for by a surface coating (21) of sputtered hydrogenated amorphous semiconductor material. Passivation of a radiation detector germanium diode, for example, is realized by sputtering a coating (21) of amorphous germanium onto the etched and quenched diode surface (11) in a low pressure atmosphere of hydrogen and argon. Unlike prior germanium diode semiconductor devices (12), which must be maintained in vacuum at cryogenic temperatures to avoid deterioration, a diode processed in the described manner may be stored in air at room temperature or otherwise exposed to a variety of environmental conditions. The coating (21) compensates for pre-existing undesirable surface states as well as protecting the semiconductor device (12) against future impregnation with impurities.

  13. Passively cooled direct drive wind turbine

    DOE Patents [OSTI]

    Costin, Daniel P. (Chelsea, VT)

    2008-03-18

    A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.

  14. Experimental study of internal wave generation by convection in water

    E-Print Network [OSTI]

    Bars, Michael Le; Perrard, Stéphane; Ribeiro, Adolfo; Rodet, Laetitia; Aurnou, Jonathan M; Gal, Patrice Le

    2015-01-01

    We experimentally investigate the dynamics of water cooled from below at 0^oC and heated from above. Taking advantage of the unusual property that water's density maximum is at about 4^oC, this set-up allows us to simulate in the laboratory a turbulent convective layer adjacent to a stably stratified layer, which is representative of atmospheric and stellar conditions. High precision temperature and velocity measurements are described, with a special focus on the convectively excited internal waves propagating in the stratified zone. Most of the convective energy is at low frequency, and corresponding waves are localized to the vicinity of the interface. However, we show that some energy radiates far from the interface, carried by shorter horizontal wavelength, higher frequency waves. Our data suggest that the internal wave field is passively excited by the convective fluctuations, and the wave propagation is correctly described by the dissipative linear wave theory.

  15. Passive solar progress: a simplified guide to the 3rd national passive solar conference

    SciTech Connect (OSTI)

    Miller, H.; Howell, Y.; Richards, D.

    1980-10-01

    Some of the concepts and practices that have come to be known as passive solar heating and cooling are introduced, and a current picture of the field is presented. Much of the material presented is derived from papers given at the 3rd National Passive Solar Conference held in San Jose, California in January 1979 and sponsored by the US Department of Energy. Extracts and data from these papers have been integrated in the text with explanatory and descriptive material. In this way, it is attempted to present technical information in an introductory context. Topics include design considerations, passive and hybrid systems and applications, sizing methods and performance prediction, and implementation issues. A glossary is included. (WHK)

  16. Active micromixer using surface acoustic wave streaming

    DOE Patents [OSTI]

    Branch; Darren W. (Albuquerque, NM), Meyer; Grant D. (Ithaca, NY), Craighead; Harold G. (Ithaca, NY)

    2011-05-17

    An active micromixer uses a surface acoustic wave, preferably a Rayleigh wave, propagating on a piezoelectric substrate to induce acoustic streaming in a fluid in a microfluidic channel. The surface acoustic wave can be generated by applying an RF excitation signal to at least one interdigital transducer on the piezoelectric substrate. The active micromixer can rapidly mix quiescent fluids or laminar streams in low Reynolds number flows. The active micromixer has no moving parts (other than the SAW transducer) and is, therefore, more reliable, less damaging to sensitive fluids, and less susceptible to fouling and channel clogging than other types of active and passive micromixers. The active micromixer is adaptable to a wide range of geometries, can be easily fabricated, and can be integrated in a microfluidic system, reducing dead volume. Finally, the active micromixer has on-demand on/off mixing capability and can be operated at low power.

  17. Wave Propagation in Multiferroic Materials

    E-Print Network [OSTI]

    Keller, Scott Macklin

    2013-01-01

    130 SAW Waves . . . . . . . . . . . . . .QuasiStatic MEE Waves . . . . . . . . . . . . . . . . . . .General MEE Wave Solution . . . . . . . . . . . .

  18. Passive scalar transport in peripheral regions of random flows

    E-Print Network [OSTI]

    A. Chernykh; V. Lebedev

    2011-03-17

    We investigate statistical properties of the passive scalar near boundaries (walls) in random (turbulent) flows assuming weakness of its diffusion. Then at advanced stages of the passive scalar mixing its unmixed residue is concentrated in a narrow diffusive layer near the wall and its transport to bulk goes through the peripheral region (laminar sublayer). We conducted Lagrangian numerical simulations of the process for different space dimensions $d$ and revealed structures responsible for the transport that are passive scalar tongues pulled from the diffusive boundary layer to bulk. We investigated statistical properties of the passive scalar and of the passive scalar integrated along the wall. Moments of both objects demonstrate scaling behavior outside the diffusive boundary layer. We propose an analytical scheme for explanation scaling of the passive scalar, the obtained exponents agree reasonably with numerics in 3d.

  19. Internal wave instability: Wave-wave versus wave-induced mean flow interactions

    E-Print Network [OSTI]

    Sutherland, Bruce

    Internal wave instability: Wave-wave versus wave-induced mean flow interactions B. R. Sutherland fluid, vertically propagating internal gravity waves of moderately large amplitude can become unstable, energy from primary waves is transferred, for example, to waves with half frequency. Self

  20. 2090 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 43, NO. 9, SEPTEMBER 2008 A Millimeter-Wave Circuit Technique

    E-Print Network [OSTI]

    Razavi, Behzad

    offset. A divide-by-two circuit based on the idea and incorporating a sampling mixer achieves a maximum, millimeter-wave amplifiers, millimeter-wave oscillators, passive mixers. I. INTRODUCTION THE growing interest of is 62% greater than the reso- nance frequency of second-order tanks, a critical advantage

  1. Passives and Verb Agreement in Kiowa-Tanoan

    E-Print Network [OSTI]

    Watkins, Laurel J.

    1982-01-01

    PASSIVES AND VERBAGREEMEN~IN KIOWA-TANOAN l Laurel J. Watkins Colorado College 1. Passive constructions have been reported in three of the four subgroups of Kiowa-Tanoan: Tewa (Arizona Tewa only, Kroskrity 1979), Towa (Jemez, Hale 1972), and Tiwa... (Isleta, Allen and Frantz 1978, Allen and Gardiner 1981; Picuris, Zaharlick 1980). These analyses are typic ally based on three diagnostic features: 1) intransitive or special passive verb agreement prefixes, 2) morphologically marked agent nomi nals...

  2. Passive containment cooling water distribution device

    DOE Patents [OSTI]

    Conway, Lawrence E. (Hookstown, PA); Fanto, Susan V. (Plum Borough, PA)

    1994-01-01

    A passive containment cooling system for a nuclear reactor containment vessel. Disclosed is a cooling water distribution system for introducing cooling water by gravity uniformly over the outer surface of a steel containment vessel using a series of radial guide elements and cascading weir boxes to collect and then distribute the cooling water into a series of distribution areas through a plurality of cascading weirs. The cooling water is then uniformly distributed over the curved surface by a plurality of weir notches in the face plate of the weir box.

  3. Passive solar concepts for multistory buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1982-01-01

    Multistory buildings long in the east-west direction and short in the north-south direction offer good opportunity for passive solar application. If each unit within the building is designed so that the Solar Savings Fraction is the same, each will respond to the weather the same way and no unit-to-unit heat distribution is needed. A numerical example for Denver is given indicating excellent thermal performance and a several-day thermal response time. Solutions involving distribution of heat from unit to unit are also discussed as well as top-floor and south-wall variations.

  4. Passive solar concepts for multistory buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1982-01-01

    Multistory buildings long in the east-west direction and short in the north-south direction offer good opportunity for passive solar application. If each unit within the building is designed so that the solar Savings Fraction is the same, each will respond to the weather the same way and no unit-to-unit heat distribution is needed. A numerical example for Denver is given indicating excellent thermal performance and a several-day thermal response time. Solutions involving distribution of heat from unit to unit are also discussed as well as top-floor and south-wall variations.

  5. Passivation-free solid state battery

    DOE Patents [OSTI]

    Abraham, Kuzhikalail M. (Needham, MA); Peramunage, Dharmasena (Norwood, MA)

    1998-01-01

    This invention pertains to passivation-free solid-state rechargeable batteries composed of Li.sub.4 Ti.sub.5 O.sub.12 anode, a solid polymer electrolyte and a high voltage cathode. The solid polymer electrolyte comprises a polymer host, such as polyacrylonitrile, poly(vinyl chloride), poly(vinyl sulfone), and poly(vinylidene fluoride), plasticized by a solution of a Li salt in an organic solvent. The high voltage cathode includes LiMn.sub.2 O.sub.4, LiCoO.sub.2, LiNiO.sub.2 and LiV.sub.2 O.sub.5 and their derivatives.

  6. Passive injection control for microfluidic systems

    DOE Patents [OSTI]

    Paul, Phillip H.; Arnold, Don W.; Neyer, David W.

    2004-12-21

    Apparatus for eliminating siphoning, "dead" regions, and fluid concentration gradients in microscale analytical devices. In its most basic embodiment, the present invention affords passive injection control for both electric field-driven and pressure-driven systems by providing additional fluid flow channels or auxiliary channels disposed on either side of a sample separation column. The auxiliary channels are sized such that volumetric fluid flow rate through these channels, while sufficient to move the sample away from the sample injection region in a timely fashion, is less than that through the sample separation channel or chromatograph.

  7. Passive Solar Building Design and Solar Thermal Space Heating Webinar

    Broader source: Energy.gov [DOE]

    Webinar of National Renewable Energy Laboratory (NREL) Senior Engineer Andy Walker's presentation about passive solar building design and solar thermal space heating technologies and applications.

  8. Development of a Thermoacoustic Model for Evaluating Passive Damping Strategies

    E-Print Network [OSTI]

    Rehman, Syed; Eldredge, Jeff D.

    2005-01-01

    The calculation of thermoacoustic oscillations. J. Sound008 "Development of a Thermoacoustic Model for EvaluatingDevelopment of a Thermoacoustic Model for Evaluating Passive

  9. Effects of passivation on synthesis, structure and composition...

    Office of Scientific and Technical Information (OSTI)

    on synthesis, structure and composition of molybdenum carbide supported platinum water-gas shift catalysts Citation Details In-Document Search Title: Effects of passivation...

  10. The Sandia MEMS Passive Shock Sensor : FY08 failure analysis...

    Office of Scientific and Technical Information (OSTI)

    analysis activities. Citation Details In-Document Search Title: The Sandia MEMS Passive Shock Sensor : FY08 failure analysis activities. No abstract prepared. Authors:...

  11. Passive Catalytic Approach to Low Temperature NOx Emission Abatement...

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

    Catalytic Approach to Low Temperature NOx Emission Abatement Passive Catalytic Approach to Low Temperature NOx Emission Abatement Numerically evaluated and optimized proposed...

  12. Building America Whole-House Solutions for Existing Homes: Passive...

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

    Building America Whole-House Solutions for Existing Homes: Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet) Building America Whole-House Solutions for Existing...

  13. Passive injection: A strategy for mitigating reservoir pressurization...

    Office of Scientific and Technical Information (OSTI)

    Passive injection: A strategy for mitigating reservoir pressurization, induced seismicity and brine migration in geologic CO2 storage Citation Details In-Document Search Title:...

  14. Passive Catalytic Approach to Low Temperature NOx Emission Abatement

    Broader source: Energy.gov [DOE]

    Numerically evaluated and optimized proposed state-of-the-art passive catalytic technology designed to reduce NOx released during vehicle cold start portion of the FTP-75 cycle

  15. Design and control of a passively stabilized multimodal hopping robot

    E-Print Network [OSTI]

    Pantel, Erica

    2010-01-01

    Stabilized Multimodal Hopping Robot A Thesis submitted inStabilized Multimodal Hopping Robot by Erica Pantel Masterfor a multimodal hopping robot. The robot harnesses passive

  16. Using Passive Solar Design to Save Money and Energy | Department...

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

    thermal system (top of roof) supplies both domestic hot water and a secondary radiant floor heating system. | Photo courtesy of Jim Schmid Photography. Passive Solar Home...

  17. Building America Whole-House Solutions for Existing Homes: Passive...

    Energy Savers [EERE]

    clients to determine acceptable comfort levels for occupants in these cost-optimized, energy-efficient houses. Passive Room-to-Room Air Transfer - Fresno, California More...

  18. Shallow Water Waves and Solitary Waves

    E-Print Network [OSTI]

    Hereman, Willy

    2013-01-01

    Encyclopedic article covering shallow water wave models used in oceanography and atmospheric science. Sections: Definition of the Subject; Introduction and Historical Perspective; Completely Integrable Shallow Water Wave Equations; Shallow Water Wave Equations of Geophysical Fluid Dynamics; Computation of Solitary Wave Solutions; Numerical Methods; Water Wave Experiments and Observations; Future Directions, and Bibliography.

  19. SOME ANALYTIC MODELS OF PASSIVE SOLAR BUILDING PERFORMANCE: A THEORETICAL APPROACH TO THE DESIGN OF ENERGY-CONSERVING BUILDINGS

    E-Print Network [OSTI]

    Goldstein, David Baird

    2011-01-01

    during construction. many passive houses have performed muchif it occurred, the optimwll passive house would likely havephotographs of a passive solar house at First Village in

  20. Utility of passive photography to objectively audit built environment features of active transport journeys: an observational study

    E-Print Network [OSTI]

    2013-01-01

    Foster C: Ethics of using Passive Automated Digital Image-Open Access Utility of passive photography to objectivelyfeatures captured using passive photog- raphy that may be

  1. RECIPROCAL PASSIVE MODE-LOCKING OF A RHODAMINE 6G DYE LASER AND THE Ar+ PUMP LASER

    E-Print Network [OSTI]

    Yasa, Zafer A.

    2013-01-01

    Letters RECIPROCAL PASSIVE MODE+LOCKING OF A RHODAMINE 6GCalifornia. RECIPROCAL PASSIVE MODE-LOCKING OF A RHODAMINEOctober 1980 RECIPROCAL PASSIVE MODE-LOCKING OF A RHODAMINE

  2. SOME ANALYTIC MODELS OF PASSIVE SOLAR BUILDING PERFORMANCE: A THEORETICAL APPROACH TO THE DESIGN OF ENERGY-CONSERVING BUILDINGS

    E-Print Network [OSTI]

    Goldstein, David Baird

    2011-01-01

    widespread application of passive solar designs. To design a°F). OVERALL SUMMARY Passive solar design is one of severalfor a typical passive solar design, rendering this solution

  3. Population based exposure assessment methodology for carbon monoxide: Development of a Carbon Monoxide Passive Sampler and Occupational Dosimeter

    E-Print Network [OSTI]

    Apte, Michael G.

    2010-01-01

    Passive Colorimetric Dosimeter Tubes for Carbon Monoxide."Passive Colorimetric Dosimeter Tubes for Ammonia, CarbonPassive Badges, and Dosimeter Tubes." In: Air Sampling

  4. Wave variability and wave spectra for wind generated gravity waves 

    E-Print Network [OSTI]

    Bretschneider, Charles L.

    1959-01-01

    A series of experiments of forces on a fixed vertical truncated column due to Stokes 5th order like waves were done in a wave tank. An effort was made to generate the waves as close as possible to theoretical Stokes 5th order waves. A systematic...

  5. Kinematic Decoupling in Mechanisms and Application to a Passive Hand

    E-Print Network [OSTI]

    Hayward, Vincent

    Kinematic Decoupling in Mechanisms and Application to a Passive Hand Controller Design Vincent, 1992 Observations regarding the kinematics of mechanisms are applied to the synthesis of a passive hand In this article we apply observations regarding the kinematic properties of mechanisms to the design of a simple

  6. PASSIVE CONTROL OF FLUID POWERED HUMAN POWER AMPLIFIERS

    E-Print Network [OSTI]

    Li, Perry Y.

    PASSIVE CONTROL OF FLUID POWERED HUMAN POWER AMPLIFIERS Perry Y. Li and Venkat Durbha Center is proposed for the control of fluid powered human power amplifiers. Human power amplifiers are mechanical human power amplifier interacts with the human opeartor and other environments passively

  7. A notion of passivity for hybrid systems Milos Zefran

    E-Print Network [OSTI]

    Sontag, Eduardo

    on linear circuit the- ory was used for stability analysis in [7]. The most general stability results of hap- tic displays interacting with linear [5] and passive [6] en- vironments. Passivity analysis based Introduction In this paper we are primarily concerned with the stability analysis of systems that involve

  8. Liquid metal cooled nuclear reactors with passive cooling system

    DOE Patents [OSTI]

    Hunsbedt, Anstein (Los Gatos, CA); Fanning, Alan W. (San Jose, CA)

    1991-01-01

    A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of cooling medium flow circuits which cooperate to remove and carry heat away from the fuel core upon loss of the normal cooling flow circuit to areas external thereto.

  9. Passive ice freezing-releasing heat pipe. [Patent application

    DOE Patents [OSTI]

    Gorski, A.J.; Schertz, W.W.

    1980-09-29

    A heat pipe device has been developed which permits completely passive ice formation and periodic release of ice without requiring the ambient temperature to rise above the melting point of water. This passive design enables the maximum amount of cooling capacity to be stored in the tank.

  10. Exploring the Cloud from Passive Measurements: the Amazon AWS Case

    E-Print Network [OSTI]

    Exploring the Cloud from Passive Measurements: the Amazon AWS Case Ignacio Bermudez, Stefano provider that offers computing, storage, and content delivery platforms. Leveraging passive measurements are represented by companies aiming at offering their services without carrying on costs and risks of building

  11. Modular Quantum Memories Using Passive Linear Optics and Coherent Feedback

    E-Print Network [OSTI]

    Modular Quantum Memories Using Passive Linear Optics and Coherent Feedback Hendra I. Nurdin photon pulsed optical field has a conceptually simple modular realization using only passive linear optics and coherent feedback. We exploit the idea that two decaying optical cavities can be coupled

  12. OBJECT TOPICALIZATION, PASSIVE, AND INFORMATION STRUCTURE IN JAPANESE

    E-Print Network [OSTI]

    OBJECT TOPICALIZATION, PASSIVE, AND INFORMATION STRUCTURE IN JAPANESE Tomoko Watanabe Research Centre for English and Applied Linguistics University of Cambridge Keynes House, Trumpington Street properties with the passive: foregrounding of the patient and de-topicalization of the agent. This fact makes

  13. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    Plan for Passive Solar Heating and Cooling builds upon theto design, build, finance, and market passive solar systems.a build- ing•s thermal energy requirements, • Passive solar

  14. Energy and air quality implications of passive stack ventilation in residential buildings

    E-Print Network [OSTI]

    Mortensen, Dorthe Kragsig

    2011-01-01

    scaling the passive stack diameter with house size (floora single-story house ventilated by a passive stack with andTable 1: Passive stack diameters scaling with house size

  15. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    and Light Commercial Passive Solar Costs and Energy ImpactsLight Commercial Passive Solar Costs and Energy Impacts l~iledge of performance and costs of passive solar heating and

  16. DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House by Hammer...

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

    Pumpkin Ridge Passive House by Hammer and Hand DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House by Hammer and Hand DOE Tour of Zero Floorplans: Pumpkin Ridge Passive House...

  17. Optimal Passive Dynamics for Torque/Force Control Kevin Kemper, Devin Koepl and Jonathan Hurst

    E-Print Network [OSTI]

    Hurst, Jonathan

    Optimal Passive Dynamics for Torque/Force Control Kevin Kemper, Devin Koepl and Jonathan Hurst software control strategy. Discussions about the passive dynamics are often imprecise, lacking's passive dynamics (stiffness, damping, motor inertia and torque limits) and the resulting performance

  18. THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING

    E-Print Network [OSTI]

    Andersson, Brandt

    2011-01-01

    CA. October 22-26. 1979 THE PASSIVE SOLAR DESIGN PROCESS FORin preparation for the passive driving force -- solar gain.University of California. THE PASSIVE SOLAR DESIGN PROCESS

  19. The passive mechanical properties and protein composition of skeletal muscle change with Botulinum neurotoxin A treatment

    E-Print Network [OSTI]

    Thacker, Bryan Edward

    2008-01-01

    Pollack GH. (1997) Basis of passive tension and stiffness inHL, Irving TC. (1995) Passive tension in cardiac muscle:VI, Pollack GH. (1994) Passive and active tension in single

  20. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    the rate of new passive buildings construction indicates atools and marketable passive building designs has beenheat pipes to passive buildings. II.K.3 (H,C) Inves gate use

  1. THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING

    E-Print Network [OSTI]

    Andersson, Brandt

    2011-01-01

    More and more passive solar buildings will be built in theroles for passive solar in small commercial buildings, in aPASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING

  2. A CLASSIFICATION SCHEME FOR THE COMMON PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS

    E-Print Network [OSTI]

    Holtz, Michael J.

    2011-01-01

    Passive and Hybrid Heating Cooling Systems Michael]. Holtz,PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS Michael J.of passive and hybrid space heating and cooling systems are

  3. Development of thermal performance criteria for residential passive solar buildings

    SciTech Connect (OSTI)

    Sabatiuk, P.A.; Cassel, D.E.; McCabe, M.; Scarbrough, C.

    1980-01-01

    In support of the development of thermal performance criteria for residential passive solar buildings, thermal design characteristics and anticipated performance for 266 projects in the HUD Passive Residential Design Competition and the HUD Cycle 5 Demonstration Program were analyzed. These passive residences are located in all regions of the United States requiring space heating, and they represent a variety of passive solar system types including direct gain, indirect gain, and solarium (isolated gain) systems. The results of this statistical analysis are being used to develop proposed minimum acceptable levels of thermal performance for passive solar buildings for the residential performance criteria. A number of performance measures were examined, including net solar contribution, solar fraction, and auxiliary energy use. These and other design and climate-related parameters were statistically correlated using the DATAPLOT computer program and standard statistical analysis techniques.

  4. Passive magnetic bearing for a horizontal shaft

    DOE Patents [OSTI]

    Post, Richard F.

    2003-12-02

    A passive magnetic bearing is composed of a levitation element and a restorative element. The levitation element is composed of a pair of stationary arcuate ferromagnetic segments located within an annular radial-field magnet array. The magnet array is attached to the inner circumference of a hollow shaft end. An attractive force between the arcuate segments and the magnet array acts vertically to levitate the shaft, and also in a horizontal transverse direction to center the shaft. The restorative element is comprised of an annular Halbach array of magnets and a stationary annular circuit array located within the Halbach array. The Halbach array is attached to the inner circumference of the hollow shaft end. A repulsive force between the Halbach array and the circuit array increases inversely to the radial space between them, and thus acts to restore the shaft to its equilibrium axis of rotation when it is displaced therefrom.

  5. Energy Signatures: A passive solar design tool

    SciTech Connect (OSTI)

    Balcomb, J.D.; Lekov, A.B.

    1987-12-01

    Energy signatures is a new technique for aiding a designer in selecting and sizing passive solar elements in a building. Hourly heat flux profiles for each candidate design element are determined. These profiles are then matched to the hourly energy requirement of the space accounting for weather conditions, internal heat profiles of the space, and the mass characteristics of the building. Simulation analysis techniques are used to determine the energy signatures and the building load profile, and to check the final result. Least-squares techniques are used to determine the optimum mix of strategies. Examples are given to illustrate development of the method up to the present time. In addition, future directions and possibilities are outlined. 5 refs., 28 figs., 3 tabs.

  6. System identification for passive linear quantum systems

    E-Print Network [OSTI]

    Madalin Guta; Naoki Yamamoto

    2014-08-27

    System identification is a key enabling component for the implementation of quantum technologies, including quantum control. In this paper, we consider the class of passive linear input-output systems, and investigate several basic questions: (1) which parameters can be identified? (2) Given sufficient input-output data, how do we reconstruct system parameters? (3) How can we optimize the estimation precision by preparing appropriate input states and performing measurements on the output? We show that minimal systems can be identified up to a unitary transformation on the modes, and systems satisfying a Hamiltonian connectivity condition called "infecting" are completely identifiable. We propose a frequency domain design based on a Fisher information criterion, for optimizing the estimation precision for coherent input state. As a consequence of the unitarity of the transfer function, we show that the Heisenberg limit with respect to the input energy can be achieved using non-classical input states.

  7. 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

  8. Coda wave interferometry 1 Coda wave interferometry

    E-Print Network [OSTI]

    Snieder, Roel

    Coda wave interferometry 1 Coda wave interferometry An interferometer is an instrument that is sensitive to the interference of two or more waves (optical or acoustic). For example, an optical interferometer uses two interfering light beams to measure small length changes. Coda wave interferometry

  9. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    has been involved in funding solar energy research andwhich could impact funding of passive solar projects. E.excluded from funding, very few passive solar projects have

  10. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    IV. E. 2 Hold passive solar design competitions, the primarysolar heating. Passive solar design concepts and climacticor applied to pas- sive solar design. A major effort should

  11. Energy and air quality implications of passive stack ventilation in residential buildings

    E-Print Network [OSTI]

    Mortensen, Dorthe Kragsig

    2011-01-01

    of passive stack ventilation in residential buildings Dortheof passive stack ventilation in residential buildings Dorthepassive stack ventilation systems. They have been used for centuries to ventilate buildings

  12. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    build, finance, and market passive solar systems. Thepassive solar research, development, market field testing,passive solar research, development, market field testing,

  13. SOME ANALYTIC MODELS OF PASSIVE SOLAR BUILDING PERFORMANCE: A THEORETICAL APPROACH TO THE DESIGN OF ENERGY-CONSERVING BUILDINGS

    E-Print Network [OSTI]

    Goldstein, David Baird

    2011-01-01

    during construction. many passive houses have performed muchif it occurred, the optimwll passive house would likely have

  14. Indirect passive cooling system for liquid metal cooled nuclear reactors

    DOE Patents [OSTI]

    Hunsbedt, Anstein (Los Gatos, CA); Boardman, Charles E. (Saratoga, CA)

    1990-01-01

    A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of partitions surrounding the reactor vessel in spaced apart relation forming intermediate areas for circulating heat transferring fluid which remove and carry away heat from the reactor vessel. The passive cooling system includes a closed primary fluid circuit through the partitions surrounding the reactor vessel and a partially adjoining secondary open fluid circuit for carrying transferred heat out into the atmosphere.

  15. Passive cooling safety system for liquid metal cooled nuclear reactors

    DOE Patents [OSTI]

    Hunsbedt, Anstein (Los Gatos, CA); Boardman, Charles E. (Saratoga, CA); Hui, Marvin M. (Sunnyvale, CA); Berglund, Robert C. (Saratoga, CA)

    1991-01-01

    A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of partitions surrounding the reactor vessel in spaced apart relation forming intermediate areas for circulating heat transferring fluid which remove and carry away heat from the reactor vessel. The passive cooling system includes a closed primary fluid circuit through the partitions surrounding the reactor vessel and a partially adjoining secondary open fluid circuit for carrying transferred heat out into the atmosphere.

  16. The Sandia MEMS passive shock sensor : FY07 maturation activities.

    SciTech Connect (OSTI)

    Houston, Jack E.; Blecke, Jill; Mitchell, John Anthony; Wittwer, Jonathan W.; Crowson, Douglas A.; Clemens, Rebecca C.; Walraven, Jeremy Allen; Epp, David S.; Baker, Michael Sean

    2008-08-01

    This report describes activities conducted in FY07 to mature the MEMS passive shock sensor. The first chapter of the report provides motivation and background on activities that are described in detail in later chapters. The second chapter discusses concepts that are important for integrating the MEMS passive shock sensor into a system. Following these two introductory chapters, the report details modeling and design efforts, packaging, failure analysis and testing and validation. At the end of FY07, the MEMS passive shock sensor was at TRL 4.

  17. Passive solar systems performance under conditions in Bulgaria

    SciTech Connect (OSTI)

    Lekov, A.B.; Balcomb, J.D.

    1989-12-01

    This paper presents energy performance of 12 passive solar systems for three climatically different zones of Bulgaria. The results are compared with a base-case residential house that has a design typical for these areas. The different passive solar systems are compared on the basis of the percentage of solar savings and the yield, which is the annual net benefit of adding the passive solar system. The analyses are provided based on monthly meteorological data, and the method used for calculations is the Solar Load Ratio. Recommendations for Bulgarian conditions are given. 5 refs., 4 figs., 1 tab.

  18. Passive tire pressure sensor and method

    DOE Patents [OSTI]

    Pfeifer, Kent Bryant; Williams, Robert Leslie; Waldschmidt, Robert Lee; Morgan, Catherine Hook

    2006-08-29

    A surface acoustic wave device includes a micro-machined pressure transducer for monitoring tire pressure. The device is configured having a micro-machined cavity that is sealed with a flexible conductive membrane. When an external tire pressure equivalent to the cavity pressure is detected, the membrane makes contact with ridges on the backside of the surface acoustic wave device. The ridges are electrically connected to conductive fingers of the device. When the detected pressure is correct, selected fingers on the device will be grounded producing patterned acoustic reflections to an impulse RF signal. When the external tire pressure is less than the cavity reference pressure, a reduced reflected signal to the receiver results. The sensor may further be constructed so as to identify itself by a unique reflected identification pulse series.

  19. Passive tire pressure sensor and method

    DOE Patents [OSTI]

    Pfeifer, Kent Bryant (Los Lunas, NM); Williams, Robert Leslie (Albuquerque, NM); Waldschmidt, Robert Lee (Calgary, CA); Morgan, Catherine Hook (Ann Arbor, MI)

    2007-09-04

    A surface acoustic wave device includes a micro-machined pressure transducer for monitoring tire pressure. The device is configured having a micro-machined cavity that is sealed with a flexible conductive membrane. When an external tire pressure equivalent to the cavity pressure is detected, the membrane makes contact with ridges on the backside of the surface acoustic wave device. The ridges are electrically connected to conductive fingers of the device. When the detected pressure is correct, selected fingers on the device will be grounded producing patterned acoustic reflections to an impulse RF signal. When the external tire pressure is less than the cavity reference pressure, a reduced reflected signal to the receiver results. The sensor may further be constructed so as to identify itself by a unique reflected identification pulse series.

  20. Enhanced Attenuation Technologies: Passive Soil Vapor Extraction

    SciTech Connect (OSTI)

    Vangelas, K.; Looney, B.; Kamath, R.; Adamson, D.; Newell, C.

    2010-03-15

    Passive soil vapor extraction (PSVE) is an enhanced attenuation (EA) approach that removes volatile contaminants from soil. The extraction is driven by natural pressure gradients between the subsurface and atmosphere (Barometric Pumping), or by renewable sources of energy such as wind or solar power (Assisted PSVE). The technology is applicable for remediating sites with low levels of contamination and for transitioning sites from active source technologies such as active soil vapor extraction (ASVE) to natural attenuation. PSVE systems are simple to design and operate and are more cost effective than active systems in many scenarios. Thus, PSVE is often appropriate as an interim-remedial or polishing strategy. Over the past decade, PSVE has been demonstrated in the U.S. and in Europe. These demonstrations provide practical information to assist in selecting, designing and implementing the technology. These demonstrations indicate that the technology can be effective in achieving remedial objectives in a timely fashion. The keys to success include: (1) Application at sites where the residual source quantities, and associated fluxes to groundwater, are relatively low; (2) Selection of the appropriate passive energy source - barometric pumping in cases with a deep vadose zone and barrier (e.g., clay) layers that separate the subsurface from the atmosphere and renewable energy assisted PSVE in other settings and where higher flow rates are required. (3) Provision of sufficient access to the contaminated vadose zones through the spacing and number of extraction wells. This PSVE technology report provides a summary of the relevant technical background, real-world case study performance, key design and cost considerations, and a scenario-based cost evaluation. The key design and cost considerations are organized into a flowchart that dovetails with the Enhanced Attenuation: Chlorinated Organics Guidance of the Interstate Technology and Regulatory Council (ITRC). The PSVE flowchart provides a structured process to determine if the technology is, or is not, reasonable and defensible for a particular site. The central basis for that decision is the expected performance of PSVE under the site specific conditions. Will PSVE have sufficient mass removal rates to reduce the release, or flux, of contamination into the underlying groundwater so that the site can meet it overall remedial objectives? The summary technical information, case study experiences, and structured decision process provided in this 'user guide' should assist environmental decision-makers, regulators, and engineers in selecting and successfully implementing PSVE at appropriate sites.

  1. 1852 OPTICS LETTERS / Vol. 23, No. 23 / December 1, 1998 Quantum noise in a continuous-wave laser-diode-pumped

    E-Print Network [OSTI]

    Byer, Robert L.

    .3280. High-power, low-noise lasers are required for laser interferometric gravitational-wave detection1 of optical amplification and the potential need for power-noise reduction by use of passive mode filtering with a premode cleaner9 after the power amplifier. Laser interferometric gravitational-wave detectors typically

  2. Recent progress in investigating optical rogue waves This content has been downloaded from IOPscience. Please scroll down to see the full text.

    E-Print Network [OSTI]

    Turitsyn, Sergei K.

    ] that have inspired their study. This subject has been rapidly expanding since 2007, with many published cavities [22, 23], pulsed operation of passively mode-locked lasers [24­28] and wave propagation of theories for optical rogue wave formation have been advanced for different experimental conditions

  3. A Compositional Framework for Passive Linear Networks

    E-Print Network [OSTI]

    John C. Baez; Brendan Fong

    2015-07-24

    Passive linear networks are used in a wide variety of engineering applications, but the best studied are electrical circuits made of resistors, inductors and capacitors. We describe a category where a morphism is a circuit of this sort with marked input and output terminals. In this category, composition describes the process of attaching the outputs of one circuit to the inputs of another. We construct a functor, dubbed the "black box functor", that takes a circuit, forgets its internal structure, and remembers only its external behavior. Two circuits have the same external behavior if and only if they impose same relation between currents and potentials at their terminals. The space of these currents and potentials naturally has the structure of a symplectic vector space, and the relation imposed by a circuit is a Lagrangian linear relation. Thus, the black box functor goes from our category of circuits to the category of symplectic vector spaces and Lagrangian linear relations. We prove that this functor is a symmetric monoidal dagger functor between dagger compact categories. We assume the reader has some familiarity with category theory, but none with circuit theory or symplectic linear algebra.

  4. Investigating Gait Recognition in the Short-Wave Infrared (SWIR) Spectrum: Dataset and Challenges

    E-Print Network [OSTI]

    Ross, Arun Abraham

    Investigating Gait Recognition in the Short-Wave Infrared (SWIR) Spectrum: Dataset and Challenges that can confound recognition accuracy. In the context of automated human gait recognition, evaluation has literature has explored recognition in the passive thermal band. The advent of sophisticated sensors has

  5. Development of the Passive Cooling Technique in China 

    E-Print Network [OSTI]

    Zhou, J.; Wu, J.; Zhang, G.; Xu, Y.

    2006-01-01

    With more and more energy and environmental issues, the energy-saving and sustainable development of buildings is of utmost concern to the building industry. Passive cooling techniques can optimally utilize natural resources in order to reduce...

  6. The NASA Soil Moisture Active Passive (SMAP) mission: Overview

    E-Print Network [OSTI]

    O'Neill, Peggy

    The Soil Moisture Active Passive (SMAP) mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council's Decadal Survey. Its mission design consists of L-band ...

  7. A Semi-Passive Containment Cooling System Conceptual Design

    E-Print Network [OSTI]

    Liu, H.

    The objective of this project was to investigate a passive containment cooling system (PCCS) for the double concrete containment of the Korean Next Generation Reactor (KNGR). Two conceptual PCCS designs: the thermosyphon ...

  8. TRANSPARENT HEAT MIRRORS FOR PASSIVE SOLAR HEATING APPLICATIONS

    E-Print Network [OSTI]

    Selkowitz, S.

    2011-01-01

    surfaces in a passive solar-heated building is to maximizeBuildings and Community Systems. -i- TRANSPARENT HEATING MIRRORS FOR PASSIVEpassive solar systems. Architecturally, a window is a very complex building

  9. Developing a comprehensive software environment for passive solar design

    E-Print Network [OSTI]

    Lotz, Steven E

    1985-01-01

    This thesis is a journal which describes the thoughts and decisions leading up to the final design of a comprehensive software environment for passive solar design. The main purpose of this writing is to convey why a ...

  10. State of the art in passive solar heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01

    The state of the art is outlined according to four major categories: passive solar practice, evaluation, design air, and products and materials. Needed future research activities and joint industry/government activities are listed. (MHR)

  11. Applications of passive control to electromechanical Carles Batlle

    E-Print Network [OSTI]

    Batlle, Carles

    Applications of passive control to electromechanical systems Carles Batlle Technical University 2 2 Electromechanical energy conversion 2 2.1 Electric capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Port hamiltonian system modelling 8 3.1 General electromechanical systems

  12. Conservation of Severely Damaged Paper Using Passivation Polymers 

    E-Print Network [OSTI]

    Eilert, Eloise

    2012-10-19

    This work examined the use of passivation polymers in the conservation of severely damaged paper. It specifically investigated the use of this functional polymer treatment to address the issues of damage to paper caused ...

  13. Two earth sheltered passive solar residences with photovoltaic electricity

    SciTech Connect (OSTI)

    Strong, S.J.; Osten, R.J. Jr.

    1980-01-01

    The design and construction of two earth sheltered passive solar residence with photovoltaic electricity are described. The sizing and design of the P.V. system as well as the module fabrication and array integration are also discussed.

  14. Passive electromagnetic damping device for motion control of building structures

    E-Print Network [OSTI]

    Palomera-Arias, Rogelio, 1972-

    2005-01-01

    The research presented in this thesis develops a new device for the passive control of motion in building structures: an electromagnetic damper. The electromagnetic damper is a self-excited device that provides a reaction ...

  15. Solar air-conditioning-active, hybrid and passive

    SciTech Connect (OSTI)

    Yellott, J. I.

    1981-04-01

    After a discussion of summer air conditioning requirements in the United States, active, hybrid, and passive cooling systems are defined. Active processes and systems include absorption, Rankine cycle, and a small variety of miscellaneous systems. The hybrid solar cooling and dehumidification technology of desiccation is covered as well as evaporative cooling. The passive solar cooling processes covered include convective, radiative and evaporative cooling. Federal and state involvement in solar cooling is then discussed. (LEW)

  16. The development and field testing of a passive mercury dosimeter 

    E-Print Network [OSTI]

    Zahray, Robert Karl

    1982-01-01

    THE DEVELOPMENT AND FIELD TESTING OF A PASSIVE MERCURY DOSIMETER A Thesis by ROBERT KARL ZAHRAY Submitted to t. he Graduate College of Texas AddS University in partial fulfillment of the requirements for the degree o' f MASTER OF SCIENCE... December 1982 Major Subject: Industrial Hygiene THE DEVELOPMENT AND FIELD TESTING OF A PASSIVE MERCURY DOSIMETER A Thesis by ROBERT KARL ZAHRAY Approved as to style and content by: R. J. mon (Chairman of . Committee) J. Su (Member K. Irgolic...

  17. Development of a passive soil gas flux sampler 

    E-Print Network [OSTI]

    McQuown, Brian C

    1991-01-01

    was also identical to the laboratory procedure except for the insulated housing. The stainless steel canister was left in place between sampling events without the flow system. Experimental Procedure ? Land Treatment Unit. Passive samplers were also...DEVELOPMENT OF A PASSIVE SOIL GAS FLUX SAMPLER A Thesis by BRIAN C. McQUOWN Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1991...

  18. Passive solar in the United States: 1976-1986

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1986-01-01

    A decade of experience in passive solar development in the United States is reviewed. The evolution of the program through its peak in 1980 to the present is described. Methods of performance prediction and evaluation are discussed including analysis methods, design tools, test modules, and monitored buildings. Results of the monitoring show excellent performance, generally in agreement with the analysis. Passive practice is analyzed and problems are discussed. The current research program is described and potential savings are estimated.

  19. Wave Energy Basics

    Broader source: Energy.gov [DOE]

    Wave energy technologies extract energy directly from surface waves or from pressure fluctuations below the surface. Renewable energy analysts believe there is enough energy in ocean waves to provide up to 2 terawatts of electricity.

  20. Wave Control Introduction

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    focussing: in crossing seas due to coastal or submarine convergences. Moreover, (rogue) wave energy devices maker to create the highest rogue wave? geometry and dynamo in a new rogue wave energy device? maximum

  1. A passive transmitter for quantum key distribution with coherent light

    E-Print Network [OSTI]

    Marcos Curty; Marc Jofre; Valerio Pruneri; Morgan W. Mitchell

    2011-08-03

    Signal state preparation in quantum key distribution schemes can be realized using either an active or a passive source. Passive sources might be valuable in some scenarios; for instance, in those experimental setups operating at high transmission rates, since no externally driven element is required. Typical passive transmitters involve parametric down-conversion. More recently, it has been shown that phase-randomized coherent pulses also allow passive generation of decoy states and Bennett-Brassard 1984 (BB84) polarization signals, though the combination of both setups in a single passive source is cumbersome. In this paper, we present a complete passive transmitter that prepares decoy-state BB84 signals using coherent light. Our method employs sum-frequency generation together with linear optical components and classical photodetectors. In the asymptotic limit of an infinite long experiment, the resulting secret key rate (per pulse) is comparable to the one delivered by an active decoy-state BB84 setup with an infinite number of decoy settings.

  2. Passive wireless sensing tags NASA inflatable structures.

    SciTech Connect (OSTI)

    Brocato, Robert Wesley

    2006-03-01

    This report gives a description of several types of wireless, unpowered remote sensors. Surface acoustic wave (SAW) devices were coupled with conventional sensors to create entirely new types of sensors. These sensors report physically measurable data in the same manner as the conventional sensors, but they do it remotely and without any local power source. The sensors are measured remotely using a radar-like interrogation device, and the sensors and their related communication electronics draw all of the power needed for communicating from the radar pulse. The report covers only a description of prototype sensors and not of the manufacturing requirements of these devices.

  3. Geometrical vs wave optics under gravitational waves

    E-Print Network [OSTI]

    Raymond Angélil; Prasenjit Saha

    2015-05-20

    We present some new derivations of the effect of a plane gravitational wave on a light ray. A simple interpretation of the results is that a gravitational wave causes a phase modulation of electromagnetic waves. We arrive at this picture from two contrasting directions, namely null geodesics and Maxwell's equations, or, geometric and wave optics. Under geometric optics, we express the geodesic equations in Hamiltonian form and solve perturbatively for the effect of gravitational waves. We find that the well-known time-delay formula for light generalizes trivially to massive particles. We also recover, by way of a Hamilton-Jacobi equation, the phase modulation obtained under wave optics. Turning then to wave optics - rather than solving Maxwell's equations directly for the fields, as in most previous approaches - we derive a perturbed wave equation (perturbed by the gravitational wave) for the electromagnetic four-potential. From this wave equation it follows that the four-potential and the electric and magnetic fields all experience the same phase modulation. Applying such a phase modulation to a superposition of plane waves corresponding to a Gaussian wave packet leads to time delays.

  4. in Integrated Passive Component Technology, R. Ulrich and L. Schaper editors, Wiley-IEEE Press, 2003. 13. The Economics of Embedded Passives

    E-Print Network [OSTI]

    Sandborn, Peter

    1 in Integrated Passive Component Technology, R. Ulrich and L. Schaper editors, Wiley-IEEE Press, 2003. 13. The Economics of Embedded Passives Peter A. Sandborn CALCE Electronic Products and Systems, testing, marketing, sustainment, and end-of-life of the product. The decision to convert discrete passives

  5. Passive-matrix-driven field-sequential-color displays Abstract --Passive-matrix-driven field-sequential-color (FSC) displays were successfully fabricated.

    E-Print Network [OSTI]

    Passive-matrix-driven field-sequential-color displays Y. W. Li L. Tan H. S. Kwok Abstract -- Passive-matrix-driven field-sequential-color (FSC) displays were successfully fabricated. It makes use of the display. Keywords -- Passive matrix, field-sequential color. 1 Introduction Field-sequential-color (FSC

  6. Big Flippin' Wave Science

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Verdes, Campus Point, Coal Oil Point (Sands) Waves propagate perpendicular to isobaths (lines of constant

  7. Water Waves Roger Grimshaw

    E-Print Network [OSTI]

    Water Waves Roger Grimshaw May 7, 2003 Abstract A short review of the theory of weakly nonlinear water waves, prepared for the forthcoming Encyclopedia of Nonlinear Science 1 Introduction Water waves nonlinear waves. Throughout the theory is based on the traditional assumptions that water is inviscid

  8. Passive solar design handbooks: Vol III: passive solar design analysis and supplement

    SciTech Connect (OSTI)

    Balcomb, J.D.; Jones, R.W.; Kosciewicz, C.E.; Lazarus, G.S.; McFarland, R.D.; Wray, W.O.

    1983-01-01

    This book applies the Los Alamos Solar Load Ratio (SLR) method to the design of passive solar heating systems, with an emphasis on the average annual heating energy consumption. Recommendations are given on minimizing heating energy consumption by appropriate choices of conservation level and solar system parameters. Analytical methods and supporting tables are presented which enable simple, fast estimates of the heating energy consumption as part of the design process. Topics considered include SLR correlations, the load collector ratio (LCR) method, sensitivity data, cooling considerations, conservation formulas, design procedure, life-cycle costs, high-mass direct gain buildings, low-mass sun-tempered buildings, sunspaces, off-reference night insulation, correlation equations, and mixed systems.

  9. Passive millimeter-wave retrieval of global precipitation utilizing satellites and a numerical weather prediction model

    E-Print Network [OSTI]

    Surussavadee, Chinnawat

    2007-01-01

    This thesis develops and validates the MM5/TBSCAT/F([lambda]) model, composed of a mesoscale numerical weather prediction (NWP) model (MM5), a two-stream radiative transfer model (TBSCAT), and electromagnetic models for ...

  10. Novel MicroceramicStructuresfor the Design of Monolithic Millimeter-WavePassiveFront-End Componetrts

    E-Print Network [OSTI]

    Sarabandi, Kamal

    . Thermoplastic CNC Machining and assembly blends ceramic powders into thermoplastic resins that Dm be finely

  11. Cooperative Self-Propulsion of Active and Passive Rotors

    E-Print Network [OSTI]

    Yaouen Fily; Aparna Baskaran; M. Cristina Marchetti

    2011-10-26

    Using minimal models for low Reynolds number passive and active rotors in a fluid, we characterize the hydrodynamic interactions among rotors and the resulting dynamics of a pair of interacting rotors. This allows us to treat in a common framework passive or externally driven rotors, such as magnetic colloids driven by a rotating magnetic field, and active or internally driven rotors, such as sperm cells confined at boundaries. The hydrodynamic interaction of passive rotors is known to contain an azimuthal component \\sim 1/r^2 to dipolar order that can yield the recently discovered "cooperative self-propulsion" of a pair of rotors of opposite vorticity. While this interaction is identically zero for active rotors as a consequence of torque balance, we show that a \\sim 1/r^4 azimuthal component of the interaction arises in active systems to octupolar order. Cooperative self-propulsion, although weaker, can therefore also occur for pairs of active rotors.

  12. the wave model A traveling wave is an organized disturbance

    E-Print Network [OSTI]

    Winokur, Michael

    1 waves the wave model A traveling wave is an organized disturbance propagating at a well-defined wave speed v. · In transverse waves the particles of the medium move perpendicular to the direction of wave propagation. · In longitudinal waves the particles of the medium move parallel to the direction

  13. Cigarette, cigar and pipe smoking, passive smoke exposure, and risk of pancreatic cancer: a population-based study in the San Francisco Bay Area

    E-Print Network [OSTI]

    Tranah, Gregory J; Holly, Elizabeth A; Wang, Furong; Bracci, Paige M

    2011-01-01

    cigarette smoking, household passive smoke exposure, and theb 1.0 (Ref. ) Passive exposure to household and workplaceIn this study, passive exposure to household and workplace

  14. Passive magnetic bearing element with minimal power losses

    DOE Patents [OSTI]

    Post, R.F.

    1998-12-08

    Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in US Patent No. 5,495,221 entitled ``Dynamically Stable Magnetic Suspension/Bearing System.`` The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity. 8 figs.

  15. Passive magnetic bearing element with minimal power losses

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    1998-01-01

    Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elements disclosed in U.S. Patent No. 5,495,221 entitled "Dynamically Stable Magnetic Suspension/Bearing System." The improvements relate to increasing the magnitude of the force derivative, while at the same time reducing the power dissipated during the normal operation of the bearing system, to provide a passive bearing system that has virtually no losses under equilibrium conditions, that is, when the supported system is not subject to any accelerations except those of gravity.

  16. The development of a passive dosimeter for chlorine gas 

    E-Print Network [OSTI]

    Montier, Earl Woodson

    1981-01-01

    I'HE DEVELOPMENT OF A PASSIVE DOSIMETER FOR CHLORINE GAS A Thesis EARL WOODSON MONTIER, JR. Submitt* d to the Graduate College of Texas A&M Cniversity in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 198... Major Subject: Industrial Hygiene THE DEVELOPNENT CF A PASSIVE DOSII'%TER FOR CHLORINE GAS A Tbesis EARL %GODSON NONTIER JR. Appcoved as to style and content by: Chainman Co ttee ad of Depart ent 7 g Herbe' i'iembe December 981 ABSTRA CT...

  17. The development of a passive dosimeter for airborne aniline vapors 

    E-Print Network [OSTI]

    Campbell, James Evan

    1977-01-01

    and Gunnison applied the laws of passive diffusion in 3 the development of a quantitative personal monitoring device for SO and stated that this principle should be applicable to other gases and vapors in the industrial as well as the community environment... The purpose of this investigation was to determine the most effective tube length of a passive diffusion dosimeter for aniline, similar to that developed by Palmes for SO 3 In order to calibrate any air sampling device a reliable and known concentration...

  18. Relativistic Quaternionic Wave Equation II

    E-Print Network [OSTI]

    Schwartz, Charles

    2007-01-01

    Relativistic quaternionic wave equation. II J. Math. Phys.Relativistic quaternionic wave equation. II Charles Schwartzcomponent quaternionic wave equation recently introduced. A

  19. GEOMETRIC DESIGN OF A PASSIVE MECHANICAL KNEE FOR LOWER EXTREMITY WEARABLE DEVICES BASED ON ANTHROPOMORPHIC FOOT TASK GEOMETRY SCALING

    E-Print Network [OSTI]

    Ghosh, S; Robson, N; McCarthy, JM

    2015-01-01

    2004. “On the modeling of passive motion of the human kneeGEOMETRIC DESIGN OF A PASSIVE MECHANICAL KNEE FOR LOWERsynthesis of a planar passive four-bar linkage that can be

  20. Identity of Passive Film Formed on Aluminum in Li-ion Battery Electrolytes with LiPF6

    E-Print Network [OSTI]

    Zhang, Xueyuan; Devine, T.M.

    2008-01-01

    Influence Formation of AlF 3 Passive Film on Aluminum in Li-Identity of Passive Film Formed on Aluminum in Li-ionEngineering Abstract The passive film that forms on aluminum

  1. SOME ANALYTIC MODELS OF PASSIVE SOLAR BUILDING PERFORMANCE: A THEORETICAL APPROACH TO THE DESIGN OF ENERGY-CONSERVING BUILDINGS

    E-Print Network [OSTI]

    Goldstein, David Baird

    2011-01-01

    performance of 5 passive buildings. 3a. See Ref. 3a and thewell-performing passive building requires the use of anwork for unmanaged passive buildings; that is, buildings

  2. Rogue Wave Modes for the Long Wave-Short Wave Resonance Kwok Wing CHOW*(1)

    E-Print Network [OSTI]

    1 Rogue Wave Modes for the Long Wave-Short Wave Resonance Model Kwok Wing CHOW*(1) , Hiu Ning CHAN.45.Yv; 47.35.Fg ABSTRACT The long wave-short wave resonance model arises physically when the phase velocity of a long wave matches the group velocity of a short wave. It is a system of nonlinear evolution

  3. Rogue Wave Modes for the Long WaveShort Wave Resonance Model Kwok Wing CHOW

    E-Print Network [OSTI]

    Rogue Wave Modes for the Long Wave­Short Wave Resonance Model Kwok Wing CHOW 1Ã , Hiu Ning CHAN 1 online June 11, 2013) The long wave­short wave resonance model arises physically when the phase velocity of a long wave matches the group velocity of a short wave. It is a system of nonlinear evolution equations

  4. Rogue Wave Modes for the Long Wave-Short Wave Resonance Kwok Wing CHOW*(1)

    E-Print Network [OSTI]

    of a long wave matches the group velocity of a short wave. Significant interactions and energy transfer can1 Rogue Wave Modes for the Long Wave-Short Wave Resonance Model Kwok Wing CHOW*(1) , Hiu Ning CHAN.45.Yv; 47.35.Fg ABSTRACT The long wave-short wave resonance model arises physically when the phase

  5. Prototype Passive Solar Buildings in Louisiana - A Hot-Humid Climate 

    E-Print Network [OSTI]

    Shih, J. C.

    1986-01-01

    This paper on prototype passive solar buildings in Louisiana presents state of the art passive solar design. According to U.S. Department of Energy report, the annual energy consumption for a single family detached dwelling ...

  6. Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI...

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

    Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Lean-burn SIDI...

  7. THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING

    E-Print Network [OSTI]

    Andersson, Brandt

    2011-01-01

    22-26. 1979 THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALLof California. THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALLadvantages of pas- sive solar design for a small cornmercial

  8. AEROSPACE TECHNOLOGY REVIEW FOR LBL WINDOW/PASSIVE SOLAR PROGRAM FINAL REPORT

    E-Print Network [OSTI]

    Viswanathan, R.

    2011-01-01

    Section 4) A. PASSIVE SOLAR DESIGN B. HEA T PIPES C. INSU LAreviews). D-15 A. PASSIVE SOLAR DESIGN J D, Balcomb, J. Cois valuable for pas- sive solar designs of buried or bermed

  9. Optimal self assembly of modular manipulators with active and passive modules

    E-Print Network [OSTI]

    Yun, Seung-kook

    2009-01-01

    In this thesis, we describe algorithms to build self-assembling robot systems composed of active modular robots and passive bars. The robotic module is the Shady3D robot and the passive component is a rigid bar with embedded ...

  10. The accuracy of three passive dosimeters as compared to charcoal tubes 

    E-Print Network [OSTI]

    Junco, Lynnea Goodley

    1995-01-01

    Passive monitors have become increasingly popular for monitoring airborne contaminants because they are lightweight, inexpensive, and easy to use. A passive or diffusive sampler is a device which is capable of taking samples of gas or vapor...

  11. Effect of passivation on stress relaxation in electroplated copper films

    E-Print Network [OSTI]

    Huang, Rui

    Effect of passivation on stress relaxation in electroplated copper films Dongwen Gan and Paul S. Ho of interfacial mass transport by measuring stress relaxation in electroplated Cu films with four different cap examined.3,4 In particular, Hu et al.3 demonstrated a significant improvement in the EM lifetime by coating

  12. AEROSOL ABSORPTION IN CLOUDY SCENES USING PASSIVE SATELLITE INSTRUMENTS

    E-Print Network [OSTI]

    Graaf, Martin de

    AEROSOL ABSORPTION IN CLOUDY SCENES USING PASSIVE SATELLITE INSTRUMENTS M. de Graaf, L.G. Tilstra information has become available from active space-based sensors and some dedicated field campaigns on aerosol-absorption, is the Absorbing Aerosol Index (AAI), which can indicate absorbing aerosols overlying clouds. The AAI is available

  13. Performance Benefits in Passive Vehicle Suspensions Employing Inerters1

    E-Print Network [OSTI]

    Cambridge, University of

    element in networks has the disadvantage that electrical circuits with ungrounded capacitors do not have different measures in a quarter-car model is demonstrated here in comparison with a conventional passive suspension strut. A study of a full-car model is also undertaken where performance improvements are also

  14. GLOBAL AEROSOL EFFECT RETRIEVAL FROM PASSIVE HYPERSPECTRAL MEASUREMENTS

    E-Print Network [OSTI]

    Graaf, Martin de

    that can be detected using UV reflectance measurements. Since the aerosol extinction optical thickness any instrument, or a combination of instruments, that measures UV, visible and SWIR reflectancesGLOBAL AEROSOL EFFECT RETRIEVAL FROM PASSIVE HYPERSPECTRAL MEASUREMENTS M. de Graaf1,2 , L. G

  15. Hood River Passive House, Hood River, Oregon (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01

    The Hood River Passive Project was developed by Root Design Build of Hood River Oregon using the Passive House Planning Package (PHPP) to meet all of the requirements for certification under the European Passive House standards. The Passive House design approach has been gaining momentum among residential designers for custom homes and BEopt modeling indicates that these designs may actually exceed the goal of the U.S. Department of Energy's (DOE) Building America program to "reduce home energy use by 30%-50%" (compared to 2009 energy codes for new homes). This report documents the short term test results of the Shift House and compares the results of PHPP and BEopt modeling of the project. The design includes high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless mini-split heat pump. Cost analysis indicates that many of the measures implemented in this project did not meet the BA standard for cost neutrality. The ductless mini-split heat pump, lighting and advanced air leakage control were the most cost effective measures. The future challenge will be to value engineer the performance levels indicated here in modeling using production based practices at a significantly lower cost.

  16. Passivhus Norden 2008 1st Nordic passive house conference

    E-Print Network [OSTI]

    Hansen, René Rydhof

    :00 Jørn Stene CO2 Heat Pump System for Space Heating and Hot Water Heating in Low-Energy Houses-Efficiency Heat Pump Water Heater System for Apartment Buildings of Passive House Standard...........57 SESSION 3, Bengt Perers, Björn Karlsson Performance of a multifunctional PV/T hybrid solar window

  17. Passive cooling system for nuclear reactor containment structure

    DOE Patents [OSTI]

    Gou, Perng-Fei (Saratoga, CA); Wade, Gentry E. (Saratoga, CA)

    1989-01-01

    A passive cooling system for the contaminant structure of a nuclear reactor plant providing protection against overpressure within the containment attributable to inadvertent leakage or rupture of the system components. The cooling system utilizes natural convection for transferring heat imbalances and enables the discharge of irradiation free thermal energy to the atmosphere for heat disposal from the system.

  18. Natural circulating passive cooling system for nuclear reactor containment structure

    DOE Patents [OSTI]

    Gou, Perng-Fei (Saratoga, CA); Wade, Gentry E. (Saratoga, CA)

    1990-01-01

    A passive cooling system for the contaminant structure of a nuclear reactor plant providing protection against overpressure within the containment attributable to inadvertent leakage or rupture of the system components. The cooling system utilizes natural convection for transferring heat imbalances and enables the discharge of irradiation free thermal energy to the atmosphere for heat disposal from the system.

  19. Entirely passive heat pipe apparatus capable of operating against gravity

    DOE Patents [OSTI]

    Koenig, Daniel R. (Santa Fe, NM)

    1982-01-01

    The disclosure is directed to an entirely passive heat pipe apparatus capable of operating against gravity for vertical distances in the order of 3 to 7 meters and more. A return conduit into which an inert gas is introduced is used to lower the specific density of the working fluid so that it may be returned a greater vertical distance from condenser to evaporator.

  20. Gaussian state interferometry with passive and active elements

    E-Print Network [OSTI]

    Carlo Sparaciari; Stefano Olivares; Matteo G. A. Paris

    2015-10-28

    We address precision of optical interferometers fed by Gaussian states and involving passive and/or active elements, such as beam splitters, photodetectors and optical parametric amplifiers. We first address the ultimate bounds to precision by discussing the behaviour of the quantum Fisher information. We then consider photodetection at the output and calculate the sensitivity of the interferometers taking into account the non unit quantum efficiency of the detectors. Our results show that in the ideal case of photon number detectors with unit quantum efficiency the best configuration is the symmetric one, namely, passive (active) interferometer with passive (active) detection stage: in this case one may achieve Heisenberg scaling of sensitivity by suitably optimizing over Gaussian states at the input. On the other hand, in the realistic case of detectors with non unit quantum efficiency, the performances of passive scheme are unavoidably degraded, whereas detectors involving optical parametric amplifiers allow to fully compensate the presence of loss in the detection stage, thus restoring the Heisenberg scaling.

  1. Ultra-Low Power Time Synchronization Using Passive Radio Receivers

    E-Print Network [OSTI]

    Amir, Yair

    Ultra-Low Power Time Synchronization Using Passive Radio Receivers Yin Chen Qiang Wang Marcus Chang. In this pa- per, we present an inexpensive and ultra-low power ( of elapsed seconds. The universal time sig- nal receiver combines an off-the-shelf radio chip with an ultra-low

  2. PASSIVE ACOUSTIC SENSOR NETWORK LOCALIZATION; APPLICATION TO STRUCTURE GEOMETRY MONITORING

    E-Print Network [OSTI]

    Boyer, Edmond

    work in passive identification was conducted in structural health monitoring [6], acoustic [17] and seismology [2]. In structural health monitoring, applications were released to deter- mine structural and discussed. Experimental 7th European Workshop on Structural Health Monitoring July 8-11, 2014. La Cité

  3. Optimization of a Fully-Passive Flapping-Airfoil Turbine

    E-Print Network [OSTI]

    Optimization of a Fully-Passive Flapping-Airfoil Turbine Mémoire Jean-Christophe Veilleux Maîtrise. De telles oscillations pourraient ^etre utilis´ees afin de d´evelopper un nouveau type de turbine Reynolds de 500 000, ce type de turbine est optimis´e et amplement ´etudi´e afin de d´evelopper une

  4. Passive-Solar-Heating Analysis: a new ASHRAE manual

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    The forthcoming ASHRAE book, Passive Solar Heating Analysis, is described. ASHRAE approval procedures are discussed. An overview of the contents is given. The development of the solar load ratio correlations is described, and the applicability of the analysis method is discussed.

  5. Thermal performance of an earth-sheltered passive solar residence

    SciTech Connect (OSTI)

    LaVigne, A.B. (Puget Sound Power and Light Co., Bellevue, WA); Schuldt, M.A.

    1981-01-01

    Results are presented of the measured thermal performance of a direct gain, passive solar residence in the Pacific Northwest. The east, west, and north exterior walls of the house are bermed to within 12 inches (30 cm) of the ceiling; sliding interior insulated panels cover the double glazed, south facing windows when appropriate. The cost of the house construction was kept modest.

  6. Automated Target Recognition Using Passive Radar and Coordinated Flight Models

    E-Print Network [OSTI]

    Lanterman, Aaron

    of altitude and range. The Numerical Electromagnetic Code (NEC2) computes the antenna gain pattern, so Georgia Institute of Technology, Atlanta, GA 30332, USA ABSTRACT Rather than emitting pulses, passive system is in the transmitter, whereas designers of "hitchhiking" or "parasitic" radars have high

  7. Simple procedure for schematic design of passive solar buildings

    SciTech Connect (OSTI)

    Wray, W.O.; Kosiewicz, C.E.

    1984-01-01

    A simple procedure for use during the schematic phase of passive solar building design is presented in this article. The procedure is quantitative and accurate enough to insure that designs based on the provided starting point values of the primary building parameters will be cost effective.

  8. Passive Neutron Detection in Ports for Homeland Security Applications 

    E-Print Network [OSTI]

    Pedicini, Eowyn E

    2013-05-07

    for the detection of SNM being carried on small, personal watercraft. Previous work examined the possibility of using active neutron detectors to induce fission in SNM and detect the response. This thesis examines the possibility of detecting SNM using passive 3He...

  9. Risk-informed design changes for a passive cooling system

    E-Print Network [OSTI]

    Patalano, Giovanbattista

    2007-01-01

    The failure probability of a passive decay heat removal system after a LOCA is evaluated as part of a risk-informed design process for a helium-cooled fast reactor. The system was modeled using RELAP5-3D. The epistemic ...

  10. Calculating failure probabilities of passive systems during transients

    E-Print Network [OSTI]

    Mackay, Francisco J

    2007-01-01

    A time-dependent reliability evaluation of a two-loop passive Decay Heat Removal (DHR) system was performed as part of the iterative design process for a helium-cooled fast reactor. The system was modeled using RELAP5-3D. ...

  11. Internal Wave Interferometry

    E-Print Network [OSTI]

    Mathur, Manikandan S.

    Internal waves are a ubiquitous and significant means of momentum and energy transport in the oceans, atmosphere, and astrophysical bodies. Here, we show that internal wave propagation in nonuniform density stratifications, ...

  12. New wave generation

    E-Print Network [OSTI]

    Mercier, Matthieu J.

    We present the results of a combined experimental and numerical study of the generation of internal waves using the novel internal wave generator design of Gostiaux et al. (Exp. Fluids, vol. 42, 2007, pp. 123–130). This ...

  13. THE PASSIVE SOLAR DESIGN PROCESS FOR A SMALL OFFICE/LABORATORY BUILDING

    E-Print Network [OSTI]

    Andersson, Brandt

    2011-01-01

    and underground thermal storage), the passive solar redesignCollec- tion, storage, and distribution of solar energy in

  14. Gravitational Waves on Conductors

    E-Print Network [OSTI]

    A. Lewis Licht

    2004-03-12

    We consider a gravitational wave of arbitrary frequency incident on a normal or a super-conductor. The gravitationally induced fields inside the conductor are derived. The outward propagating EM waves are calculated for a low frequency wave on a small sphere and for a high frequency wave incident on a large disk. We estimate for both targets the GW to EM conversion efficiencies and also the magnitude of the superconductor's phase perturbation.

  15. Bragg grating rogue wave

    E-Print Network [OSTI]

    Degasperis, Antonio; Aceves, Alejandro B

    2015-01-01

    We derive the rogue wave solution of the classical massive Thirring model, that describes nonlinear optical pulse propagation in Bragg gratings. Combining electromagnetically induced transparency with Bragg scattering four-wave mixing, may lead to extreme waves at extremely low powers.

  16. Wave Particles Cem Yuksel

    E-Print Network [OSTI]

    Keyser, John

    Wave Particles Cem Yuksel Computer Science Texas A&M University Donald H. House Visualization captured from our real-time simulation system (approximately 100,000 wave particles) Abstract We present a new method for the real-time simulation of fluid sur- face waves and their interactions with floating

  17. Internal wave instability: Wave-wave versus wave-induced mean flow interactions

    E-Print Network [OSTI]

    Sutherland, Bruce

    , known as parametric sub- harmonic instability, results generally when a disturbance of one frequency imparts energy to disturbances of half that frequency.13,14 Generally, a plane periodic internal wave, energy from primary waves is transferred, for example, to waves with half frequency. Self

  18. KinSpace: Passive Obstacle Detection via Kinect Chris Greenwood1

    E-Print Network [OSTI]

    Stankovic, John A.

    to household objects left in open spaces. We present KinSpace, a passive obstacle detection system for the homeKinSpace: Passive Obstacle Detection via Kinect Chris Greenwood1 , Shahriar Nirjon1 , JohnSpace: Passive Obstacle Detection via Kinect This gives clear motivation for the development of a system

  19. Journal of Power Sources 160 (2006) 10581064 Passive direct formic acid microfabricated fuel cells

    E-Print Network [OSTI]

    Kenis, Paul J. A.

    2006-01-01

    Journal of Power Sources 160 (2006) 1058­1064 Passive direct formic acid microfabricated fuel cells on microscale silicon-based direct formic acid fuel cells (Si-DFAFCs) in which the fuel and the oxidant are supplied to the electrodes in a passive manner. Passive delivery of fuel and oxidant eliminates the need

  20. Bio-implantable passive on-chip RF-MEMS strain sensing resonators for orthopaedic applications

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Bio-implantable passive on-chip RF-MEMS strain sensing resonators for orthopaedic applications. Micromech. Microeng. 18 (2008) 115017 (9pp) doi:10.1088/0960-1317/18/11/115017 Bio-implantable passive on designed novel, bio-implantable, passive, on-chip, RF-MEMS strain sensors that rely on the resonance

  1. Active and Passive Learning in Agent-based Financial Markets Blake LeBaron

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Active and Passive Learning in Agent-based Financial Markets Blake LeBaron International Business of learning which are present in most agent-based financial markets. First, passive learning refers to a form active and passive learning dynamics. I will define and argue that both these forms of learning

  2. Analysis of passive scalar advection in parallel shear flows: Sorting of modes at intermediate time scales

    E-Print Network [OSTI]

    Camassa, Roberto

    Analysis of passive scalar advection in parallel shear flows: Sorting of modes at intermediate time; published online 4 November 2010 The time evolution of a passive scalar advected by parallel shear flows. INTRODUCTION The advection-diffusion of a passive scalar is a pivotal problem in mathematical physics

  3. Scalable, Server-Passive, User-Anonymous Timed Release Public Key Encryption from Bilinear Pairing

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Scalable, Server-Passive, User-Anonymous Timed Release Public Key Encryption from Bilinear Pairing- able, server-passive and user-anonymous timed release public-key encryption scheme which allows precise in our scheme is completely passive -- no interaction between it and the sender or receiver is needed

  4. Passive Cryptanalysis of the UnConditionally Secure Authentication Protocol for RFID

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Passive Cryptanalysis of the UnConditionally Secure Authentication Protocol for RFID Systems(observing) about 90 runs of the protocol. Finding a nonce enables a passive attacker to recover all five secret. Key words: : RFID, Authentication Protocol, Passive Attack 1 Introduction As of today, RFID (Radio

  5. Dispersion of passive tracers in closed basins: Beyond the diffusion coefficient

    E-Print Network [OSTI]

    Cencini, Massimo

    Dispersion of passive tracers in closed basins: Beyond the diffusion coefficient V. Artale ENEA, 00185 Roma, Italy Received 25 April 1997; accepted 10 July 1997 We investigate the spreading of passive of diffusion and transport of passive tracers in a given velocity field has both theoretical and prac- tical

  6. Combining Passive Haptics with Redirected Walking luv@cs.unc.edu

    E-Print Network [OSTI]

    Pollefeys, Marc

    Combining Passive Haptics with Redirected Walking Luv Kohli luv@cs.unc.edu Eric Burns burns of haptic feedback and constraints imposed by limited tracker space. Passive haptic feedback has been used introduce a method by which they can be combined to address both problems simultaneously. Key words: passive

  7. Understanding Passive and Active Service Discovery (Extended) ISI-TR-642, May 30, 2007

    E-Print Network [OSTI]

    Heidemann, John

    Understanding Passive and Active Service Discovery (Extended) ISI-TR-642, May 30, 2007 Genevieve and passive monitoring. Active probing finds all ser- vices currently on the network, except services administrative boundaries. Passive monitoring is typically much slower and can find transient services

  8. Active and passive fields face to face Antonio Celani1,5

    E-Print Network [OSTI]

    Cencini, Massimo

    Active and passive fields face to face Antonio Celani1,5 , Massimo Cencini2 , Andrea Mazzino3 of active and passive scalar fields transported by the same turbulent flow are investigated. Four examples is akin to that of its co- evolving passive counterpart. The two other cases indicate that this similarity

  9. Passive scalar evolution in peripheral regions V. V. Lebedev1,2

    E-Print Network [OSTI]

    Lebedev, Vladimir

    Passive scalar evolution in peripheral regions V. V. Lebedev1,2 and K. S. Turitsyn1 1 Landau the evolution of a passive scalar concentration of pollutants or temperature in a chaotic turbulent flow. A universal asymptotic behavior of the passive scalar decay homogenization related to peripheral regions near

  10. The passive and active nature of ocean heat uptake in idealized climate change experiments

    E-Print Network [OSTI]

    Vallis, Geoff

    The passive and active nature of ocean heat uptake in idealized climate change experiments Peng Xie redistribu- tion than by the nearly passive uptake of temperature due to changes in the surface boundary to treating temperature as a passive tracer, leads to significant quantitative errors notably at high

  11. PASSIVE SENSOR IMAGING USING CROSS CORRELATIONS OF NOISY SIGNALS IN A SCATTERING MEDIUM

    E-Print Network [OSTI]

    Garnier, Josselin

    PASSIVE SENSOR IMAGING USING CROSS CORRELATIONS OF NOISY SIGNALS IN A SCATTERING MEDIUM JOSSELIN's function between two passive sensors can be estimated from the cross correlation of recorded signal source region. We extend this analysis to passive sensor imaging of reflectors with different ambient

  12. DETECTING PASSIVE EAVESDROPPERS IN THE MIMO WIRETAP CHANNEL Amitav Mukherjee and A. Lee Swindlehurst

    E-Print Network [OSTI]

    Swindlehurst, A. Lee

    DETECTING PASSIVE EAVESDROPPERS IN THE MIMO WIRETAP CHANNEL Amitav Mukherjee and A. Lee.mukherjee;swindle}@uci.edu ABSTRACT The MIMO wiretap channel comprises a passive eavesdropper that attempts to intercept antennas. In a dynamic network, it is imperative that the presence of a passive eavesdropper be determined

  13. On the Security of Non-Linear HB (NLHB) Protocol Against Passive Attack

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    On the Security of Non-Linear HB (NLHB) Protocol Against Passive Attack Mohammad Reza Sohizadeh against passive attacks, Madhavan et al. presented Non-Linear HB(NLHB) pro- tocol. In contrast to HB, NLHB relies on the complexity of decoding a class of non-linear codes to render the passive attacks proposed

  14. Passive spatial and temporal integration of excitatory synaptic inputs in cerebellar Purkinje cells of young rats

    E-Print Network [OSTI]

    Passive spatial and temporal integration of excitatory synaptic inputs in cerebellar Purkinje cells linearly independent of the spatial and temporal separation of inputs. Summation of inputs in a passive. Keywords: Dendritic integration; Parallel fiber; Excitation; Timing; Synchrony; Rat Based on a passive

  15. Passive margins getting squeezed in the mantle convection vice Philippe Yamato,1

    E-Print Network [OSTI]

    Becker, Thorsten W.

    Passive margins getting squeezed in the mantle convection vice Philippe Yamato,1 Laurent Husson,1 2013. [1] Passive margins often exhibit uplift, exhumation, and tectonic inversion. We speculate passive margins. In order to address this issue, we design a 2-D viscous numerical model wherein

  16. Passive scalar in a large-scale velocity field I. Kolokolov

    E-Print Network [OSTI]

    Lebedev, Vladimir

    Passive scalar in a large-scale velocity field I. Kolokolov Budker Institute of Nuclear Physics advection of a passive scalar (t,r) by an incompressible large-scale turbulent flow. In the framework of and for the passive scalar difference (r1) (r2) for separations r1 r2 lying in the convective interval are found

  17. Modeling of passive microwave responses in convective situations using output from mesoscale models

    E-Print Network [OSTI]

    Chaboureau, Jean-Pierre

    Modeling of passive microwave responses in convective situations using output from mesoscale models 2003; revised 27 January 2004; accepted 5 February 2004; published 30 March 2004. [1] Passive microwave, which essentially sense cloud tops. Therefore passive microwave observations are a very promising tool

  18. Almost Periodic Passive Tracer Dispersion \\Lambda Hongjun Gao 1 , Jinqiao Duan 2 and Xinchu Fu 3

    E-Print Network [OSTI]

    Almost Periodic Passive Tracer Dispersion \\Lambda Hongjun Gao 1 , Jinqiao Duan 2 and Xinchu Fu 3 1 the impact of external sources on the pat­ tern formation of concentration profiles of passive tracers Science Foundation Grant DMS­ 9704345 and the UK EPSRC Grant GR/M36335. 1 #12; Key words: Passive tracer

  19. Passive tracer patchiness and particle trajectory stability in incompressible two-dimensional flows

    E-Print Network [OSTI]

    Olascoaga, Maria Josefina

    Passive tracer patchiness and particle trajectory stability in incompressible two-dimensional flows in Geophysics (2003) 1:1­8 Nonlinear Processes in Geophysics c European Geophysical Society 2003 Passive tracer." This leads to patchiness in the evolution of passive tracer distribu- tions. Also, it is argued

  20. Context Passive gathering of information Experiments Integrated behavioral dvfs method Hydrasim Measuring and Characterizing HPC applications

    E-Print Network [OSTI]

    Lefèvre, Laurent

    Context Passive gathering of information Experiments Integrated behavioral dvfs method Hydrasim applications and CPU/GPU simulation #12;Context Passive gathering of information Experiments Integrated behavioral dvfs method Hydrasim Plan 1 Context 2 Passive gathering of information 3 Experiments 4 Integrated

  1. Active and Passive Filter Synthesis using BOGDAN M. WILAMOWSKI and RAMRAJ GOTTIPARTHY

    E-Print Network [OSTI]

    Wilamowski, Bogdan Maciej

    Active and Passive Filter Synthesis using MATLAB* BOGDAN M. WILAMOWSKI and RAMRAJ GOTTIPARTHY of elements. The second method uses passive ladder prototypes and practical VLSI implementation needs a series are designed in two ways: active filter (cascade type) and passive filter (ladder type). Traditional design

  2. From Passive to Covert Security at Low Cost Ivan Damgard, Martin Geisler, and Jesper Buus Nielsen

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    From Passive to Covert Security at Low Cost Ivan Damg°ard, Martin Geisler, and Jesper Buus Nielsen to compile a passively secure protocol for honest majority into one that is secure against covert attacks categorized as being either semi-honest (passive) or malicious (ac- tive). A semi-honest adversary will only

  3. Model for passive mode locking in semiconductor lasers Andrei G. Vladimirov*

    E-Print Network [OSTI]

    Vladimirov, Andrei G.

    Model for passive mode locking in semiconductor lasers Andrei G. Vladimirov* Weierstrass Institute 11 May 2005; published 12 September 2005 We derive and study a model describing passive mode locking.65.Pc INTRODUCTION Passive mode locking ML is a powerful method to gen- erate high-quality short pulses

  4. Passive Tele-operation of Pneumatic Powered Robotic Rescue Crawler Proc. of 6th

    E-Print Network [OSTI]

    Li, Perry Y.

    Passive Tele-operation of Pneumatic Powered Robotic Rescue Crawler ________________________________________________________________________________________________________________________ Proc. of 6th FPNI-PhD Symp. West Lafayette 2010, pp. 451-466 451 PASSIVE TELE-OPERATION OF PNEUMATIC, a passive bilateral tele-operation of a pneumatic powered robotic crawler is presented. The crawler

  5. Passive tracer reconstruction as a least-squares problem with a semi-Lagrangian constraint

    E-Print Network [OSTI]

    deYoung, Brad

    Passive tracer reconstruction as a least-squares problem with a semi-Lagrangian constraint-dimensional, nonstationary, passive tracer field in the ocean with open boundaries and a known velocity field. The observations, spatial smoothing terms and passive tracer conservation equation were included as weak

  6. Active and passive social support in families of greylag geese (Anser anser)

    E-Print Network [OSTI]

    Richner, Heinz

    Active and passive social support in families of greylag geese (Anser anser) Isabella B.R. Scheiber ally in agonistic encounters, and (ii) `passive social support' in which the mere presence of a social to study support by social allies. We investigated the effects of active and passive social support in ten

  7. Passive film-induced stress and mechanical properties of a-Ti in methanol solution

    E-Print Network [OSTI]

    Volinsky, Alex A.

    Passive film-induced stress and mechanical properties of a-Ti in methanol solution Zhi Qin 2013 Accepted 7 October 2013 Available online 14 October 2013 Keywords: A. Titanium C. Passive films C. Stress corrosion C. Effects of strain C. Interfaces a b s t r a c t Passive films play an important role

  8. Three-dimensional scapulothoracic motion during active and passive arm elevation

    E-Print Network [OSTI]

    Karduna, Andrew

    Three-dimensional scapulothoracic motion during active and passive arm elevation D. David Ebaugh a (active versus passive arm elevation) on three-dimensional scapulothoracic motion. Methods. Twenty during active and passive arm elevation. Muscle activity was recorded from surface electrodes over

  9. LITHOSPHERE | | www.gsapubs.org Formation of passive-roof duplexes in the Colombian

    E-Print Network [OSTI]

    Bookhagen, Bodo

    with a passive-roof duplex on its hinterland side if surface mass transport is combined with efficient sedimentLITHOSPHERE | | www.gsapubs.org Formation of passive-roof duplexes in the Colombian Subandes­SANTA BARBARA, 1832 ELLISON HALL, SANTA BARBARA, CALIFORNIA 93106-4060, USA ABSTRACT Passive-roof duplexes

  10. Performance Assessment of the Wave Dragon Wave Energy Converter

    E-Print Network [OSTI]

    Hansen, René Rydhof

    Performance Assessment of the Wave Dragon Wave Energy Converter Based on the EquiMar Methodology S of the wave energy sector, device developers are called to provide reliable estimates on power performanceMar, Nissum Bredning, Hanstholm, North Sea, Ekofisk, Wave-to-wire, Wave energy. I. INTRODUCTION The wave

  11. Coastal Wave Generation and Wave Breaking over Terrain: Two Problems in Mesoscale Wave Dynamics 

    E-Print Network [OSTI]

    Qian, Tingting

    2010-07-14

    Two problems in mesoscale wave dynamics are addressed: (i) wave-turbulence interaction in a breaking mountain wave and (ii) gravity wave generation associated with coastal heating gradients. The mean and turbulent structures in a breaking mountain...

  12. Passive and Active Sensing Technologies for Structural Health Monitoring /

    E-Print Network [OSTI]

    Do, Richard

    2014-01-01

    variability on structural health monitoring,” Philos. Trans.Sensing Methods in Structural Health Monitoring for Aircraftof guided wave structural health monitoring systems,” Smart

  13. Effect of Hydrogen Passivation on the Electronic Structure of Ionic Semiconductor Nanostructures

    SciTech Connect (OSTI)

    Deng, H. X.; Li, S. S.; Li, J. B.; Wei, S. H.

    2012-05-15

    In theoretical studies of thin film and nanostructured semiconductors, pseudohydrogen (PH) is widely used to passivate the surface dangling bonds. Based on these calculations, it is often believed that nanostructured semiconductors, due to quantum confinement, have a larger band gap than their bulk counterparts. Using first-principles band structure theory calculation and comparing systematically the differences between PH-passivated and real-hydrogen-passivated (RH-passivated) semiconductor surfaces and nanocrystals, we show that, unlike PH passivation that always increases the band gap with respect to the bulk value, RH passivation of the nanostructured semiconductors can either increase or decrease the band gap, depending on the ionicity of the nanocompounds. The differences between PH and RH passivations decreases when the covalency of the semiconductor increases and can be explained using a band coupling model. This observation greatly increases the tunability of nanostructured semiconductor properties, especially for wide-gap ionic semiconductors.

  14. Cycloidal Wave Energy Converter

    SciTech Connect (OSTI)

    Stefan G. Siegel, Ph.D.

    2012-11-30

    This program allowed further advancing the development of a novel type of wave energy converter, a Cycloidal Wave Energy Converter or CycWEC. A CycWEC consists of one or more hydrofoils rotating around a central shaft, and operates fully submerged beneath the water surface. It operates under feedback control sensing the incoming waves, and converts wave power to shaft power directly without any intermediate power take off system. Previous research consisting of numerical simulations and two dimensional small 1:300 scale wave flume experiments had indicated wave cancellation efficiencies beyond 95%. The present work was centered on construction and testing of a 1:10 scale model and conducting two testing campaigns in a three dimensional wave basin. These experiments allowed for the first time for direct measurement of electrical power generated as well as the interaction of the CycWEC in a three dimensional environment. The Atargis team successfully conducted two testing campaigns at the Texas A&M Offshore Technology Research Center and was able to demonstrate electricity generation. In addition, three dimensional wave diffraction results show the ability to achieve wave focusing, thus increasing the amount of wave power that can be extracted beyond what was expected from earlier two dimensional investigations. Numerical results showed wave cancellation efficiencies for irregular waves to be on par with results for regular waves over a wide range of wave lengths. Using the results from previous simulations and experiments a full scale prototype was designed and its performance in a North Atlantic wave climate of average 30kW/m of wave crest was estimated. A full scale WEC with a blade span of 150m will deliver a design power of 5MW at an estimated levelized cost of energy (LCOE) in the range of 10-17 US cents per kWh. Based on the new results achieved in the 1:10 scale experiments these estimates appear conservative and the likely performance at full scale will exceed this initial performance estimates. In advancing the Technology Readiness Level (TRL) of this type of wave energy converter from 3 to 4, we find the CycWEC to exceed our initial estimates in terms of hydrodynamic performance. Once fully developed and optimized, it has the potential to not just outperform all other WEC technologies, but to also deliver power at a lower LCOE than competing conventional renewables like wind and solar. Given the large wave power resource both domestically and internationally, this technology has the potential to lead to a large improvement in our ability to produce clean electricity at affordable cost.

  15. Solution-processed amorphous silicon surface passivation layers

    SciTech Connect (OSTI)

    Mews, Mathias Sontheimer, Tobias; Korte, Lars; Rech, Bernd; Mader, Christoph; Traut, Stephan; Wunnicke, Odo

    2014-09-22

    Amorphous silicon thin films, fabricated by thermal conversion of neopentasilane, were used to passivate crystalline silicon surfaces. The conversion is investigated using X-ray and constant-final-state-yield photoelectron spectroscopy, and minority charge carrier lifetime spectroscopy. Liquid processed amorphous silicon exhibits high Urbach energies from 90 to 120?meV and 200?meV lower optical band gaps than material prepared by plasma enhanced chemical vapor deposition. Applying a hydrogen plasma treatment, a minority charge carrier lifetime of 1.37?ms at an injection level of 10{sup 15}/cm{sup 3} enabling an implied open circuit voltage of 724?mV was achieved, demonstrating excellent silicon surface passivation.

  16. Comprehensive figures of merit for passive and active plasmonic circuits

    E-Print Network [OSTI]

    Krasavin, Alexey V

    2015-01-01

    In this article a comprehensive figures of merit for both passive and active plasmonic circuit components are introduced, benchmarking their performance for the realisation of high-bandwidth optical data communication in electronic chips. For the first time the figure of merit for passive plasmonic interconnects has been derived in terms of ultimate global characteristics of the plasmonic circuitry, particularly bandwidth and power consumption densities. Then, these parameters were linked to the local waveguide characteristics, such as mode propagation length, bending radius, etc. The figure has been applied to provide a comprehensive comparison to the main types of the plasmonics waveguides and can serve as an excellent benchmark for future designs. Completing the development of broadband optical on-chip data communication, we developed an all-inclusive figure of merit for active photonic- or plasmonic-based electro-optic modulators, establishing the communication between electronic and photonic chip domains...

  17. Nonequilibrium Glass Transition in Mixtures of Active-Passive Particles

    E-Print Network [OSTI]

    Huai Ding; Mengkai Feng; Huijun Jiang; Zhonghuai Hou

    2015-06-09

    We develop a mode coupling theory(MCT) to study the nonequilibrium glass transition behavior of a mono-disperse mixture of active-passive hard-sphere particles. The MCT equations clearly demonstrate that the glass transition is shifted to higher values of total volume fraction when doping a passive system with active particles. Interestingly, we find that the glass transition point may show a non-monotonic dependence on the effective diffusivity of the active component, indicating a nontrivial type of activity induced reentrance behavior. Analysis based on the nonergodic parameters suggest that the glassy state at small activity is due to the caging effect, while that at high activity could result from activity induced dynamic clustering.

  18. Phase segregation of passive advective particles in an active medium

    E-Print Network [OSTI]

    Amit Das; Anirban Polley; Madan Rao

    2015-06-23

    Localized contractile configurations or asters spontaneously appear and disappear as emergent structures in the collective stochastic dynamics of active polar actomyosin filaments. Passive parti- cles which (un)bind to the active filaments get advected into the asters, forming transient clusters. We study the phase segregation of such passive advective scalars in a medium of dynamic asters, as a function of the aster density and the ratio of the rates of aster remodeling to particle diffusion. The dynamics of coarsening shows strong violation of Porod behaviour, suggesting diffuse interfaces. The phase segregated steady state shows strongly fluctuations characterized by multiscaling and in- termittency. We expect these unique nonequilibrium features to manifest in the actin-dependent molecular clustering at the cell surface.

  19. Passive heat-transfer means for nuclear reactors. [LMFBR

    DOE Patents [OSTI]

    Burelbach, J.P.

    1982-06-10

    An improved passive cooling arrangement is disclosed for maintaining adjacent or related components of a nuclear reactor within specified temperature differences. Specifically, heat pipes are operatively interposed between the components, with the vaporizing section of the heat pipe proximate the hot component operable to cool it and the primary condensing section of the heat pipe proximate the other and cooler component operable to heat it. Each heat pipe further has a secondary condensing section that is located outwardly beyond the reactor confinement and in a secondary heat sink, such as air ambient the containment, that is cooler than the other reactor component. By having many such heat pipes, an emergency passive cooling system is defined that is operative without electrical power.

  20. Nonequilibrium Glass Transition in Mixtures of Active-Passive Particles

    E-Print Network [OSTI]

    Ding, Huai; Jiang, Huijun; Hou, Zhonghuai

    2015-01-01

    We develop a mode coupling theory(MCT) to study the nonequilibrium glass transition behavior of a mono-disperse mixture of active-passive hard-sphere particles. The MCT equations clearly demonstrate that the glass transition is shifted to higher values of total volume fraction when doping a passive system with active particles. Interestingly, we find that the glass transition point may show a non-monotonic dependence on the effective diffusivity of the active component, indicating a nontrivial type of activity induced reentrance behavior. Analysis based on the nonergodic parameters suggest that the glassy state at small activity is due to the caging effect, while that at high activity could result from activity induced dynamic clustering.

  1. Passive Tamper Indicating Enclosures Incorporating Embedded Optical Fibre

    SciTech Connect (OSTI)

    Wynn, Paul; White, Helen; Allen, Keir; Simmons, Kevin L.; Sliva, Paul; Benz, Jacob M.; Tanner, Jennifer E.

    2011-08-14

    AWE and PNNL are engaged in a technical collaboration investigating techniques to enhance continuity of knowledge over Accountable Items within a verified nuclear weapons dismantlement process. Tamper Indicating Enclosures (TIE) will likely be deployed as part of a chain of custody regime to indicate an unauthorised attempt to access an Accountable Item. This paper looks at the use of passive TIEs incorporating embedded optical fibre; concepts relating to deployment, tamper indication and unique identification will be discussed.

  2. Evaluating the performance of passive-solar-heated buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    Methods of evaluating the thermal performance of passive-solar buildings are reviewed. Instrumentation and data logging requirements are outlined. Various methodologies that have been used to develop an energy balance for the building and various performance measures are discussed. Methods for quantifying comfort are described. Subsystem and other special-purpose monitoring are briefly reviewed. Summary results are given for 38 buildings that have been monitored.

  3. Heat storage and distribution inside passive-solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-05-01

    Passive solar buildings are investigated from the viewpoint of the storage of solar heat in materials of the building: walls, floors, ceilings, and furniture. The effects of the location, material, thickness, and orientation of each internal building surface are investigated. The concept of diurnal heat capacity is introduced and a method of using this parameter to estimate clear-day temperature swings is developed. Convective coupling to remote rooms within a building is discussed. Design guidelines are given.

  4. Tips: Passive Solar Heating and Cooling | 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 CenterFinancialInvestingRenewableTeach and Learn5 BudgetHistoryPassive

  5. Advances in passive neutron instruments for safeguards use

    SciTech Connect (OSTI)

    Menlove, H.O.; Krick, M.S.; Langner, D.G.; Miller, M.C.; Stewart, J.E.

    1994-02-01

    Passive neutron and other nondestructive assay techniques have been used extensively by the International Atomic Energy Agency to verify plutonium metal, powder, mixed oxide, pellets, rods, assemblies, scrap, and liquids. Normally, the coincidence counting rate is used to measure the {sup 240}Pu-effective mass and gamma-ray spectrometry or mass spectrometry is used to verify the plutonium isotopic ratios. During the past few years, the passive neutron detectors have been installed in plants and operated in the unattended/continuous mode. These radiation data with time continuity have made it possible to use the totals counting rate to monitor the movement of nuclear material. Monte Carlo computer codes have been used to optimize the detector designs for specific applications. The inventory sample counter (INVS-III) has been designed to have a higher efficiency (43%) and a larger uniform counting volume than the original INVS. Data analyses techniques have been developed, including the ``known alpha`` and ``known multiplication`` methods that depend on the sample. For scrap and other impure or poorly characterized samples, we have developed multiplicity counting, initially implemented in the plutonium scrap multiplicity counter. For large waste containers such as 200-L drums, we have developed the add-a-source technique to give accurate corrections for the waste-matrix materials. This paper summarizes recent developments in the design and application of passive neutron assay systems.

  6. Prognostics Health Management for Advanced Small Modular Reactor Passive Components

    SciTech Connect (OSTI)

    Meyer, Ryan M.; Ramuhalli, Pradeep; Coble, Jamie B.; Mitchell, Mark R.; Wootan, David W.; Hirt, Evelyn H.; Berglin, Eric J.; Bond, Leonard J.; Henager, Charles H.

    2013-10-18

    In the United States, sustainable nuclear power to promote energy security is a key national energy priority. Advanced small modular reactors (AdvSMR), which are based on modularization of advanced reactor concepts using non-light-water reactor (LWR) coolants such as liquid metal, helium, or liquid salt may provide a longer-term alternative to more conventional LWR-based concepts. The economics of AdvSMRs will be impacted by the reduced economy-of-scale savings when compared to traditional LWRs and the controllable day-to-day costs of AdvSMRs are expected to be dominated by operations and maintenance costs. Therefore, achieving the full benefits of AdvSMR deployment requires a new paradigm for plant design and management. In this context, prognostic health management of passive components in AdvSMRs can play a key role in enabling the economic deployment of AdvSMRs. In this paper, the background of AdvSMRs is discussed from which requirements for PHM systems are derived. The particle filter technique is proposed as a prognostics framework for AdvSMR passive components and the suitability of the particle filter technique is illustrated by using it to forecast thermal creep degradation using a physics-of-failure model and based on a combination of types of measurements conceived for passive AdvSMR components.

  7. Passive and low energy research and development: a global view

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1984-01-01

    Passive and low energy applications in buildings have become a topic of worldwide interest within the last few years. It has now been demonstrated very clearly that indoor comfort can be maintained with an expenditure of only 10 to 20% of the energy often required by modern buildings. This is accomplished through a combination of conservation measures to minimize the load, passive use of solar energy for heating, natural cooling, and daylighting. The major research emphasis has been on devising mathematical models to characterize heat flow within buildings, on the validation of these models by comparison with test results, and on the subsequent use of the models to investigate the influence of both design parameters and weather on system performance. Design guidelines have been developed, and simplified methods of analysis have been promulgated. Performance has been monitored in test modules, test buildings, and many residential and commercial buildings. The results both confirm good performance and establish the accuracy of model predictions. A significant change in the research picture has been seen in the last 4 years; whereas the major effort was originally in the United States, research is now being conducted in many countries throughout the world as many people have realized that passive and low energy methods are appropriate in virtually every climate and are well suited to economic, convenient, and reliable building construction and operation.

  8. Passive solar heated energy conserving biosphere home. Final report

    SciTech Connect (OSTI)

    Piekarski, R.

    1985-01-01

    ''Warm Gold'' is an original design of a passive solar heated energy conserving biosphere home. It has been owner-built with financial help from the US Department of Energy through its Appropriate Technology Small Grants Program of 1980. The home incorporates the six major components of passive solar design: appropriate geometry and orientation, glazing, light levels and reflective surfaces, ventilation, thermal storage, and insulation. Warm Gold is an earth-sheltered home with earth cover on the roof as well as on the two opaque north leg walls. It is of durable and efficient masonry construction which included stone masonry with on-site materials and cement block and ready mix concrete. Excavation, backfill, and drainage were necessary aspects of earth sheltered construction together with the all-important Bentonite waterproofing system. Warm Gold is a house which meets all the national building code standards of HUD. The home has two bedrooms, one bathroom, living room, dining room-kitchen, greenhouse, and utility annex, all of which are incorporated with the earth-sheltered, passive solar systems to be a comfortable, energy-efficient living environment.

  9. Passive film formation on 316L stainless steel

    SciTech Connect (OSTI)

    Lee, S.; Pitt, C.H.; Wadsworth, M.E.

    1981-10-01

    The polarization behavior of 316L stainless steel has been studied in deaerated sodium sulfate solutions of various pH values. Potentiodynamic, potentiostatic and galvanostatic methods were used for a kinetic study of the formation and growth of passive films. For the film composition analysis, Auger Electron Spectroscopy (AES) and ESCA techniques were also employed. Anodic polarization curves show that current increases as pH decreases and temperature increases. The activation energy for the reaction in the active region was determined to be 10.8 Kcal/mole. From potentiostatic experiments, three stages for passive film formation were observed: the initial active-passive transition, the logarithmic growth of the film and the parabolic growth of the film. The logarithmic relation is expressed and the parabolic relation written. The depth profile concentration of elements in the film by AES showed chromium enrichment at the surface except for the specimen treated at 0.9V (SCE), where iron was the dominant element in the film. The relative amount of Fe/sup 2 +/ and Fe/sup 3 +/ on the film surface analyzed by ESCA was not different for specimens anodized at 0.18V and 0.58V.

  10. CMR Shuffler System: Passive Mode Calibration and Certification Report

    SciTech Connect (OSTI)

    Frame, Katherine C. [Los Alamos National Laboratory; Gomez, Cipriano D. [Retired CMR-OPS: OPERATIONS; Salazar, William R. [Los Alamos National Laboratory; Mayo, Douglas R. [Los Alamos National Laboratory; Vigil, Georgiana M. [Los Alamos National Laboratory; Crooks, William J. [Los Alamos National Laboratory; Stange, Sy [Los Alamos National Laboratory

    2012-07-20

    Los Alamos National Laboratory has a number of spherical confinement vessels (CVs) remaining from tests involving nuclear materials. These vessels have an inner diameter of 6 feet with 1 to 2 inch thick steel walls. The goal of the Confinement Vessel Disposition (CVD) project is to remove debris and reduce contamination inside the vessels. As debris is removed from the vessels, material will be placed in waste drums. Far-field gamma ray assay will be used to determine when a drum is nearing a {sup 239}Pu equivalent mass of less than 200 g. The drum will then be assayed using a waste drum shuffler operated in passive mode using a neutron coincidence counting method for accountability. This report focuses on the testing and calibration of the CMR waste drum shuffler in passive mode operation. Initial testing was performed to confirm previously accepted measurement parameters. The system was then calibrated using a set of weapons grade Pu (WGPu, {sup 239}Pu > 93%) oxide standards placed inside a 55 gallon drum. The calibration data ranges from Pu mass of 0.5 g to 188.9 g. The CMR waste drum shuffler has been tested and calibrated in passive mode in preparation for safeguards accountability measurements of waste drums containing material removed from CVs for the CVD project.

  11. Passive Active Multi-Junction 3, 7 GHZ launcher for Tore-Supra Long Pulse Experiments. Manufacturing Process and Tests

    SciTech Connect (OSTI)

    Guilhem, D.; Achard, J.; Bertrand, B.; Bej, Z.; Bibet, Ph.; Brun, C.; Chantant, M.; Delmas, E.; Delpech, L.; Doceul, Y.; Ekedahl, A.; Goletto, C.; Goniche, M.; Hatchressian, J. C.; Hillairet, J.; Houry, M.; Joubert, P.; Lipa, M.; Madeleine, S.; Martinez, A.

    2009-11-26

    The design and the fabrication of a new Lower Hybrid (LH) actively cooled antenna based on the passive active concept is a part of the CIMES project (Components for the Injection of Mater and Energy in Steady-state). The major objectives of Tore-Supra program is to achieve 1000 s pulses with this LH launcher, by coupling routinely >3 MW of LH wave at 3.7 GHz to the plasma with a parallel index n{sub ||} = 1.7 {sup {+-}}{sup 0.2}. The launcher is on its way to achieve its validation tests--low power Radio Frequency (RF) measurements, vacuum and hydraulic leak tests--and will be installed and commissioned on plasma during the fall of 2009.

  12. Semi-Passive Replication in the Presence of Byzantine Faults HariGovind V. Ramasamy Adnan Agbaria William H. Sanders

    E-Print Network [OSTI]

    Sanders, William H.

    Semi-Passive Replication in the Presence of Byzantine Faults HariGovind V. Ramasamy Adnan Agbaria {ramasamy, adnan, whs}@crhc.uiuc.edu Abstract Semi-passive replication is a variant of passive replication that does not rely on a group membership service. D´efago et al. [4] defined the semi-passive replication

  13. 978-1-4244-1674-5/08 /$25.00 2008 IEEE CIS 2008 Propagation Modeling of Passive Worms

    E-Print Network [OSTI]

    Tokarchuk, Laurissa

    978-1-4244-1674-5/08 /$25.00 ©2008 IEEE CIS 2008 Propagation Modeling of Passive Worms in P2P with the study of active worm propagation, passive worm propagation has been less highlighted. Passive worms propagate slowly in Internet, but P2P system can be a potential vehicle to fast the propagation of passive

  14. 238 IEEE ELECTRON DEVICE LETTERS, VOL. 25, NO. 5, MAY 2004 Polyimide Passivated AlGaNGaN HFETs With

    E-Print Network [OSTI]

    Shen, Shyh-Chiang

    238 IEEE ELECTRON DEVICE LETTERS, VOL. 25, NO. 5, MAY 2004 Polyimide Passivated AlGaN­GaN HFETs, degrading RF performance. A passivation scheme utilizing a polyimide film as the passivating layer. This data suggests that polyimide can be an effective passivation film for reducing surface states. Index

  15. MHD waves in sunspots

    E-Print Network [OSTI]

    Sych, Robert

    2015-01-01

    The review addresses the spatial frequency morphology of sources of sunspot oscillations and waves, including their localization, size, oscillation periods, height localization with the mechanism of cut-off frequency that forms the observed emission variability. Dynamic of sunspot wave processes, provides the information about the structure of wave fronts and their time variations, investigates the oscillation frequency transformation depending on the wave energy is shown. The initializing solar flares caused by trigger agents like magnetoacoustic waves, accelerated particle beams, and shocks are discussed. Special attention is paid to the relation between the flare reconnection periodic initialization and the dynamics of sunspot slow magnetoacoustic waves. A short review of theoretical models of sunspot oscillations is provided.

  16. Use of DRACS to Enhance HTGRs Passive Safety and Economy

    SciTech Connect (OSTI)

    Haihua Zhao; Hongbin Zhang; Ling Zou

    2011-06-01

    This paper discusses the use of DRACS to Enhance HTGRs Passive Safety and Economy. One of the important requirements for Gen. IV High Temperature Gas Cooled Reactors (HTGR) is passive safety. Currently all the HTGR designs use Reactor Vessel Auxiliary Cooling System (RVACS) for passive decay heat removal. [1] The decay heat first is transferred to core barrel by conduction and radiation, and then to reactor vessel by thermal radiation and convection; finally the decay heat is transferred to natural circulated air or water systems. RVACS can be characterized as a surface based decay heat removal system. Similar concepts have been widely used in sodium cooled fast reactor (SFR) designs, advanced light water reactors like AP1000. The RVACS is especially suitable for smaller power reactors since small systems have relatively larger surface area. RVACS tends to be less expensive. However, it limits the largest achievable power level for modular HTGRs due to the mismatch between the reactor power (proportional to volume) and decay heat removal capability (proportional to surface). When the relative decay heat removal capability is reduced, the peak fuel temperature increases, even close to the design limit. Annual designs with internal reflector can mitigate this effect therefore further increase the power. Another way to increase power is to increase power density. However, it is also limited by the decay heat removal capability. Besides safety, HTGRs also need to be economical in order to compete with other reactor designs. The limit of decay heat removal capability set by using RVACS has affected the economy of HTGRs. Forsberg [2] pointed out other disadvantages of using RVACS such as conflicting functional requirements for the reactor vessel and scaling distortion for integral effect test of the system performance. A potential alternative solution is to use a volume based passive decay removal system, call Direct Reactor Auxiliary Cooling Systems (DRACS), to remove or mitigate the limitation on decay heat removal capability. DRACS has been widely used in SFR designs and in liquid salt cooled high temperature reactors. The containment cooling system in BWR is another example of volume based decay removal systems. DRACS composes of natural circulation loops with two sets of heat exchangers, one in reactor side and another is in environment side. DRACS has the benefits of increasing the power as needed (scalability) and modularity. This paper introduces the concept of using DRACS to enhance HTGRs passive safety and economy.

  17. Logarithmic violation of scaling in strongly anisotropic turbulent transfer of a passive vector field

    E-Print Network [OSTI]

    N. V. Antonov; N. M. Gulitskiy

    2015-01-21

    Inertial-range asymptotic behavior of a vector (e.g., magnetic) field, passively advected by a strongly anisotropic turbulent flow, is studied by means of the field theoretic renormalization group and the operator product expansion. The advecting velocity field is Gaussian, not correlated in time, with the pair correlation function of the form $\\propto \\delta(t-t') / k_{\\bot}^{d-1+\\xi}$, where $k_{\\bot}=|{\\bf k}_{\\bot}|$ and ${\\bf k}_{\\bot}$ is the component of the wave vector, perpendicular to the distinguished direction (`direction of the flow') -- the $d$-dimensional generalization of the ensemble introduced by Avellaneda and Majda [{\\it Commun. Math. Phys.} {\\bf 131}: 381 (1990)]. The stochastic advection-diffusion equation for the transverse (divergence-free) vector field includes, as special cases, the kinematic dynamo model for magnetohydrodynamic turbulence and the linearized Navier--Stokes equation. In contrast to the well known isotropic Kraichnan's model, where various correlation functions exhibit anomalous scaling behavior with infinite sets of anomalous exponents, here the dependence on the integral turbulence scale $L$ has a logarithmic behavior: instead of power-like corrections to ordinary scaling, determined by naive (canonical) dimensions, the anomalies manifest themselves as polynomials of logarithms of $L$. The key point is that the matrices of scaling dimensions of the relevant families of composite operators appear nilpotent and cannot be diagonalized. The detailed proof of this fact is given for correlation functions of arbitrary order.

  18. Dust-Acoustic Waves: Visible Sound Waves Robert L. Merlino

    E-Print Network [OSTI]

    Merlino, Robert L.

    Dust-Acoustic Waves: Visible Sound Waves Robert L. Merlino Department of Physics and Astronomy and experimental work on dust acoustic waves is given. The basic physics of the dust acoustic wave and some findings and outstanding problems are also presented. Keywords: dusty plasmas, dust acoustic waves PACS: 52

  19. Wave momentum flux parameter: a descriptor for nearshore waves

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Wave momentum flux parameter: a descriptor for nearshore waves Steven A. Hughes* US Army Engineer Available online 7 October 2004 Abstract A new parameter representing the maximum depth-integrated wave momentum flux occurring over a wave length is proposed for characterizing the wave contribution

  20. Structure-borne sound Flexural wave (bending wave)

    E-Print Network [OSTI]

    Berlin,Technische Universität

    1 Structure-borne sound · Flexural wave (bending wave) »One dimensional (beam) +(/x)dx +(/x)dx = (/x) (/x)dx=(2/x2)dx Mz +(Mz/x)dx Mz vy Fy Fy +(Fy/x)dx Structure-borne sound · Bending wave ­ flexural wave #12;2 Structure-borne sound · Two obliquely propagating waves + - + + - + - Structure

  1. REAL-TIME WATER WAVES WITH WAVE PARTICLES

    E-Print Network [OSTI]

    Keyser, John

    REAL-TIME WATER WAVES WITH WAVE PARTICLES A Dissertation by Cem Yuksel Submitted to the Office of DOCTOR OF PHILOSOPHY August 2010 Major Subject: Computer Science #12;REAL-TIME WATER WAVES WITH WAVE, Valerie E. Taylor August 2010 Major Subject: Computer Science #12;iii ABSTRACT Real-time Water Waves

  2. GN Wave theory and TEBEM for Wave-Body Interaction

    E-Print Network [OSTI]

    GN Wave theory and TEBEM for Wave-Body Interaction Dr. BinBin Zhao and Professor Wenyang Duan of simulating irregular nonlinear water wave interaction with arbitrary floating bodies, the Green-Naghdi wave corners. The results show that the high-level GN theory can predict wave transformation over uneven seabed

  3. Electromagnetic prompt response in an elastic wave cavity

    E-Print Network [OSTI]

    A. M. Martínez-Argüello; M. Martínez-Mares; M. Cobián-Suárez; G. Báez; R. A. Méndez-Sánchez

    2015-02-11

    A rapid, or prompt response, of an electromagnetic nature, is found in an elastic wave scattering experiment. The experiment is performed with torsional elastic waves in a quasi-one-dimensional cavity with one port, formed by a notch grooved at a certain distance from the free end of a beam. The stationary patterns are diminished using a passive vibration isolation system at the other end of the beam. The measurement of the resonances is performed with non-contact electromagnetic-acoustic transducers outside the cavity. In the Argand plane, each resonance describes a circle over a base impedance curve which comes from the electromagnetic components of the equipment. A model, based on a variation of Poisson's kernel is developed. Excellent agreement between theory and experiment is obtained.

  4. Trimodal steady water waves

    E-Print Network [OSTI]

    Mats Ehrnström; Erik Wahlén

    2013-10-31

    We construct three-dimensional families of small-amplitude gravity-driven rotational steady water waves on finite depth. The solutions contain counter-currents and multiple crests in each minimal period. Each such wave generically is a combination of three different Fourier modes, giving rise to a rich and complex variety of wave patterns. The bifurcation argument is based on a blow-up technique, taking advantage of three parameters associated with the vorticity distribution, the strength of the background stream, and the period of the wave.

  5. Directed Relativistic Blast Wave

    E-Print Network [OSTI]

    Andrei Gruzinov

    2007-04-23

    A spherically symmetrical ultra-relativistic blast wave is not an attractor of a generic asymmetric explosion. Spherical symmetry is reached only by the time the blast wave slows down to non-relativistic velocities, when the Sedov-Taylor-von Neumann attractor solution sets in. We show however, that a directed relativistic explosion, with the explosion momentum close to the explosion energy, produces a blast wave with a universal intermediate asymptotic -- a selfsimilar directed ultra-relativistic blast wave. This universality might be of interest for the astrophysics of gamma-ray burst afterglows.

  6. Wave Energy challenges and possibilities

    E-Print Network [OSTI]

    © Wave Energy ­ challenges and possibilities By: Per Resen Steenstrup www.WaveStarEnergy.com Risø-R-1608(EN) 161 #12;© Wave energy is an old story.... The first wave energy patent is 200 years old. Over the last 100 years more than 200 new wave energy devices have been developped and more than 1.000 patents

  7. Wave Energy Resource Analysis for Use in Wave Energy Conversion 

    E-Print Network [OSTI]

    Pastor, J.; Liu, Y.; Dou, Y.

    2014-01-01

    In order to predict the response of wave energy converters an accurate representation of the wave climate resource is crucial. This paper gives an overview of wave resource modeling techniques as well as detailing a methodology for estimating...

  8. Wave-Corpuscle Mechanics for Electric Charges

    E-Print Network [OSTI]

    Babin, Anatoli; Figotin, Alexander

    2010-01-01

    superposition in nonlinear wave dynamics. Rev. Math. Phys.6. Babin, A. , Figotin, A. : Wave-corpuscle mechanics forV. , Fortunato, D. : Solitary waves in the nonlinear wave

  9. Microstructural Design for Stress Wave Energy Management /

    E-Print Network [OSTI]

    Tehranian, Aref

    2013-01-01

    Nasser, S. , 2010. Stress-wave energy management throughNemat-Nasser, Stress-wave energy management through materialconstitute pressure wave energy and/or shear wave energy.

  10. Harmonic generation of gravitational wave induced Alfven waves

    E-Print Network [OSTI]

    Mats Forsberg; Gert Brodin

    2007-11-26

    Here we consider the nonlinear evolution of Alfven waves that have been excited by gravitational waves from merging binary pulsars. We derive a wave equation for strongly nonlinear and dispersive Alfven waves. Due to the weak dispersion of the Alfven waves, significant wave steepening can occur, which in turn implies strong harmonic generation. We find that the harmonic generation is saturated due to dispersive effects, and use this to estimate the resulting spectrum. Finally we discuss the possibility of observing the above process.

  11. Electromagnetic Wave Dynamics in

    E-Print Network [OSTI]

    Kaiser, Robin

    Mesoscopic Electromagnetic Wave Dynamics in Ultracold Atomic Gases Robin Kaiser and Mark D. Havey Mesoscopic Electromagnetic Wave Dynamics in Ultracold Atomic Gases #12;39 E xperimental developments permit in the transport proper- ties of electromagnetic radiation in strongly scattering random media. Even in weakly

  12. CATCHING THE FOURTH WAVE

    E-Print Network [OSTI]

    Bieber, Michael

    CATCHING THE FOURTH WAVE YOU MAY HAVE RIDDEN THEM YOURSELF -- the swells that develop farther out beyond Toffler, the fourth wave -- biologi- cal intelligence and medical technology -- is on the horizon second and fourth nationally in terms of cities that receive the most research funds from the National

  13. Developing de Broglie Wave

    E-Print Network [OSTI]

    J X Zheng-Johansson; P-I Johansson

    2006-08-27

    The electromagnetic component waves, comprising together with their generating oscillatory massless charge a material particle, will be Doppler shifted when the charge hence particle is in motion, with a velocity $v$, as a mere mechanical consequence of the source motion. We illustrate here that two such component waves generated in opposite directions and propagating at speed $c$ between walls in a one-dimensional box, superpose into a traveling beat wave of wavelength ${\\mit\\Lambda}_d$$=(\\frac{v}{c}){\\mit\\Lambda}$ and phase velocity $c^2/v+v$ which resembles directly L. de Broglie's hypothetic phase wave. This phase wave in terms of transporting the particle mass at the speed $v$ and angular frequency ${\\mit\\Omega}_d=2\\pi v /{\\mit\\Lambda}_d$, with ${\\mit\\Lambda}_d$ and ${\\mit\\Omega}_d$ obeying the de Broglie relations, represents a de Broglie wave. The standing-wave function of the de Broglie (phase) wave and its variables for particle dynamics in small geometries are equivalent to the eigen-state solutions to Schr\\"odinger equation of an identical system.

  14. Rayleigh WaveInternal Wave Coupling and Internal Wave Generation Above a Model Jet Stream

    E-Print Network [OSTI]

    Sutherland, Bruce

    Rayleigh Wave­Internal Wave Coupling and Internal Wave Generation Above a Model Jet Stream B. R to the study of unstable jet flows and applications of this work for internal wave generation by dynamic remains poorly understood. Most investigations of shear­generation of inter­ nal waves in the atmosphere

  15. Rayleigh Wave-Internal Wave Coupling and Internal Wave Generation Above a Model Jet Stream

    E-Print Network [OSTI]

    Sutherland, Bruce

    Rayleigh Wave-Internal Wave Coupling and Internal Wave Generation Above a Model Jet Stream B. R to the study of unstable jet flows and applications of this work for internal wave generation by dynamic remains poorly understood. Most investigations of shear-generation of inter- nal waves in the atmosphere

  16. An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave groups

    E-Print Network [OSTI]

    Kirby, James T.

    An unsteady wave driver for narrowbanded waves: modeling nearshore circulation driven by wave Abstract In this paper, we derive an unsteady refraction­diffraction model for narrowbanded water waves for use in computing coupled wave­current motion in the nearshore. The end result is a variable

  17. Recirculation in multiple wave conversions

    E-Print Network [OSTI]

    Brizard, A.J.

    2008-01-01

    model lies with the simple wave energy conservation law itthe recirculation of wave energy introduces interference e?particles, the tertiary-wave energy may be negative and thus

  18. Center for Wave Phenomena Wave Phenomena

    E-Print Network [OSTI]

    Snieder, Roel

    research and education program in seismic exploration, monitoring and wave propagation. The main focus into a life of scientific discovery." Kurang Mehta, Ph.D. Class of 2007 Shell Exploration and Production Phil of CWP is on seismic modeling, imaging and inversion methods, as well as on improving the accuracy

  19. Element and system design for active and passive vibration isolation

    E-Print Network [OSTI]

    Zuo, Lei, 1974-

    2005-01-01

    This thesis focusses on broadband vibration isolation, with an emphasis on control of absolute payload motion for ultra-precision instruments such as the MIT/Caltech Laser-Interferometric Gravitational Wave Observatory ...

  20. Passive cooling system for top entry liquid metal cooled nuclear reactors

    DOE Patents [OSTI]

    Boardman, Charles E. (Saratoga, CA); Hunsbedt, Anstein (Los Gatos, CA); Hui, Marvin M. (Cupertino, CA)

    1992-01-01

    A liquid metal cooled nuclear fission reactor plant having a top entry loop joined satellite assembly with a passive auxiliary safety cooling system for removing residual heat resulting from fuel decay during shutdown, or heat produced during a mishap. This satellite type reactor plant is enhanced by a backup or secondary passive safety cooling system which augments the primary passive auxiliary cooling system when in operation, and replaces the primary cooling system when rendered inoperative.

  1. Passive cooling system for liquid metal cooled nuclear reactors with backup coolant flow path

    DOE Patents [OSTI]

    Hunsbedt, Anstein (Los Gatos, CA); Boardman, Charles E. (Saratoga, CA)

    1993-01-01

    A liquid metal cooled nuclear fission reactor plant having a passive auxiliary safety cooling system for removing residual heat resulting from fuel decay during reactor shutdown, or heat produced during a mishap. This reactor plant is enhanced by a backup or secondary passive safety cooling system which augments the primary passive auxiliary cooling system when in operation, and replaces the primary system when rendered inoperable.

  2. Double dielectric passivation layer on InAs 

    E-Print Network [OSTI]

    Egley, James Lee

    1985-01-01

    quality and the dielectric layer of an InAs sample with an anodic oxide/SiOz passivation layer. KOH was the electrolyte used for anodization and the SiOz was deposited by RF sputtering. The equipment that was built for testing of the samples at 77K... is briefly described. The processing steps required for the fabrication of a MOSFET and a mobility measurement device utilizing an anodic oxide/SisNq dielectric layer are explained. The anodic oxides grown here are shown to be semiconductors. Methods...

  3. Erbium-based magnetic refrigerant (regenerator) for passive cryocooler

    DOE Patents [OSTI]

    Gschneidner, Jr., Karl A. (Ames, IA); Pecharsky, Vitalij K. (Ames, IA)

    1996-07-23

    A two stage Gifford-McMahon cryocooler having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from the group consisting of Er.sub.6 Ni.sub.2 Sn, Er.sub.6 Ni.sub.2 Pb, Er.sub.6 Ni.sub.2 (Sn.sub.0.75 Ga.sub.0.25), and Er.sub.9 Ni.sub.3 Sn comprising a mixture of Er.sub.3 Ni and Er.sub.6 Ni.sub.2 Sn in the microstructure.

  4. Large Spin Entangled Current from a Passive Device

    E-Print Network [OSTI]

    Avinash Kolli; Simon C. Benjamin; Jose Garcia Coello; Sougato Bose; Brendon W. Lovett

    2008-08-25

    We show that a large entangled current can be produced from a very simple passive device: a cluster of three resonant quantum dots, tunnel coupled to one input lead and two output leads. The device can function in a `clean' mode, when almost all emitted electrons are paired in Bell states, or a `dirty' mode with a far higher emission rate but a significant portion of non-entangled electrons. Subsequent charge detection can enhance performance by identifying the pairs that are most likely to be entangled. The device is robust to specific choice of system parameters and therefore lends itself to immediate experimental demonstration. Applications include quantum repeaters and unconditionally secure interfaces.

  5. Passive $\\mathcal{PT}$-symmetric couplers without complex optical potentials

    E-Print Network [OSTI]

    Lee, Yi-Chan; Chuang, You-Lin; Hsieh, Min-Hsiu; Lee, Ray-Kuang

    2015-01-01

    In addition to the implementation of parity-time ($\\mathcal{PT}$)-symmetric optical systems by carefully and actively controlling the gain and loss, we show that a $2\\times 2$ $\\mathcal{PT}$-symmetric Hamiltonian has a unitarily equivalent representation without complex optical potentials in the resulting optical coupler. Through the Naimark dilation in operator algebra, passive $\\mathcal{PT}$-symmetric couplers can thus be implemented with a refractive index of real values and asymmetric coupling coefficients. This opens up the possibility to implement general $\\mathcal{PT}$-symmetric systems with state-of-the-art asymmetric slab waveguides, dissimilar optical fibers, or cavities with chiral mirrors.

  6. Passive states optimize the output of bosonic Gaussian quantum channels

    E-Print Network [OSTI]

    Giacomo De Palma; Dario Trevisan; Vittorio Giovannetti

    2015-11-01

    An ordering between the quantum states emerging from a single mode gauge-covariant bosonic Gaussian channel is proven. Specifically, we show that within the set of input density matrices with the same given spectrum, the element passive with respect to the Fock basis (i.e. diagonal with decreasing eigenvalues) produces an output which majorizes all the other outputs emerging from the same set. When applied to pure input states, our finding includes as a special case the result of A. Mari, et al., Nat. Comm. 5, 3826 (2014) which implies that the output associated to the vacuum majorizes the others.

  7. Passive Exposure to Mobile Phones: Enhancement of Intensity by Reflection

    E-Print Network [OSTI]

    Tsuyoshi Hondou; Takenori Ueda; Yasuhiro Sakata; Nobuto Tanigawa; Tetsu Suzuki; Taizo Kobayashi; Kensuke Ikeda

    2007-03-12

    In a recent Letter [J. Phys. Soc. Jpn. 71, 432 (2002)], we reported a preliminary calculation and concluded that public exposure to mobile phones can be enhanced by microwave reflection in public spaces. In this paper, we confirm the significance of microwave reflection reported in our previous Letter by experimental and numerical studies. Furthermore, we show that "hot spots" often emerge in reflective areas, where the local exposure level is much higher than average. Such places include elevators, and we discuss other possible environments including trains, buses, cars, and airplanes. Our results indicate the risk of "passive exposure" to microwaves.

  8. Natural air motion and stratification in passive buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.; Jones, G.F.; Yamaguchi, Kenjiro

    1984-01-01

    Natural convection is a major mechanism for heat distribution in many passive solar buildings, especially those with sunspaces. To better understand this mechanism, observations of air velocities and temperatures have been made in 13 different houses that encompass a wide variety of one- and two-story geometries. This paper extends previous reports. Results from one house are described in detail, and some generalizations are drawn from the large additional mass of data taken. A simple mathematical model is presented that describes the general nature of airflow and energy flow through an aperture.

  9. Heat storage and distribution inside passive-solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    Passive-solar buildings are investigated from the viewpoint of the storage of solar heat in materials of the building: walls, floors, ceilings, and furniture. The effects of the location, material, thickness, and orientation of each internal building surface are investigated. The concept of diurnal heat capacity is introduced and a method of using this parameter to estimate clear-day temperature swings is developed. Convective coupling to remote rooms within a building is discussed, including both convection through single doorways and convective loops that may exist involving a sunspace. Design guidelines are given.

  10. Erbium-based magnetic refrigerant (regenerator) for passive cryocooler

    DOE Patents [OSTI]

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

    1996-07-23

    A two stage Gifford-McMahon cryocooler is disclosed having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from the group consisting of Er{sub 6}Ni{sub 2}Sn, Er{sub 6}Ni{sub 2}Pb, Er{sub 6}Ni{sub 2}(Sn{sub 0.75}Ga{sub 0.25}), and Er{sub 9}Ni{sub 3}Sn comprising a mixture of Er{sub 3}Ni and Er{sub 6}Ni{sub 2}Sn in the microstructure. 14 figs.

  11. Analysis of passive dosimeter samples by thermal desorption 

    E-Print Network [OSTI]

    Schultz, Sherryl Anne

    1981-01-01

    described in this paper, the passive dosimeter was de- sorbed with carbon disulfide and thermal desorpt1on had only been reported for the analysis of sorbent tubes. The proposed technique avoided the problems associated with both the toxic, flammable... carbon d1sulfide and the battery-operated pumps used for the analysis of sorbent tubes. This research project was designed to assess the technical feasibility of the thermal desorption of passi ve dosimeters; not to optimize cond1t1ons, nor to survey...

  12. Category:Passive Seismic Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR Jump to: navigation,GroundNear InfraredOpenEI JumpPassive

  13. Passive Corrosion Sensor Development. (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfateSciTech ConnectSpeeding access to(Conference)Connect Passivation Effects in Copper

  14. Passive Vector Geoacoustic Inversion in Coastal Areas Using a sequential

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfateSciTech ConnectSpeeding access to(Conference)Connect Passivation Effects in

  15. Passive Vector Geoacoustic Inversion in Coastal Areas Using a sequential

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfateSciTech ConnectSpeeding access to(Conference)Connect Passivation Effects inUnscented

  16. Passive injection: A strategy for mitigating reservoir pressurization,

    Office of Scientific and Technical Information (OSTI)

    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 NaturalDukeWakefieldSulfateSciTech ConnectSpeeding access to(Conference)Connect Passivation Effects

  17. Passive Solar Building Design Basics | 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 CenterFinancialInvesting inServices »About Us »Parking and GaragePassive

  18. The passive mechanical properties and protein composition of skeletal muscle change with Botulinum neurotoxin A treatment

    E-Print Network [OSTI]

    Thacker, Bryan Edward

    2008-01-01

    Friden J. (2003) Inferior mechanical properties of spasticgeometry effects on the mechanical properties of secondarySAN DIEGO The Passive Mechanical Properties and Protein

  19. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    Definitions Space Heating Space Cooling Hot Water . .in Passive Solar Heating and Cooling Section C: Program GoalSpace Heating Space Cooling Section G: Task Classifications

  20. The Sandia MEMS Passive Shock Sensor : FY08 testing for functionality...

    Office of Scientific and Technical Information (OSTI)

    and technology readiness. Citation Details In-Document Search Title: The Sandia MEMS Passive Shock Sensor : FY08 testing for functionality, model validation, and technology...

  1. A CLASSIFICATION SCHEME FOR THE COMMON PASSIVE AND HYBRID HEATING AND COOLING SYSTEMS

    E-Print Network [OSTI]

    Holtz, Michael J.

    2011-01-01

    AND HYBRID HEATING AND COOLING SYSTEMS Michael J. Holtzmost common passive cooling systems and a representativepassive space heating and cooling systems. It is based upon

  2. Performance Evaluation for a Modular, Scalable Passive Cooling System in Data Centers

    E-Print Network [OSTI]

    Xu, TengFang

    2009-01-01

    by the passive modular cooling system; and P hydraulic isthe ventilation and cooling systems being less than optimal.modular and scalable cooling systems aim at significantly

  3. Sustainable Energy Resources for Consumers Webinar on Building Design & Passive Solar Transcript

    Broader source: Energy.gov [DOE]

    Video recording transcript of a Webinar on Nov. 16, 2010 about residential passive solar building design and solar thermal heating applications

  4. Performance Evaluation for a Modular, Scalable Passive Cooling System in Data Centers

    E-Print Network [OSTI]

    Xu, TengFang

    2009-01-01

    3. Modius OpenData ® Data Center infrastructure Manager,Passive Cooling System in Data Centers Final Report To TheDATA CENTERS

  5. DEVELOPMENT OF RADIO FREQUENCY INTERFERENCE DETECTION ALGORITHMS FOR PASSIVE MICROWAVE REMOTE SENSING

    E-Print Network [OSTI]

    Ruf, Christopher

    DEVELOPMENT OF RADIO FREQUENCY INTERFERENCE DETECTION ALGORITHMS FOR PASSIVE MICROWAVE REMOTE Gross for pretty much building almost everything that this thesis is based on and Darren Mc

  6. Large scale passive force-displacement and dynamic earth pressure experiments and simulations

    E-Print Network [OSTI]

    Wilson, Patrick Richard

    2009-01-01

    Choudhury, D. , and Nimbalkar, S. (2005). “Seismic passive? values (from Choudhury and Nimbalkar Figure 5.3: ReloadingKumar 2001, Choudhury and Nimbalkar 2005, Rao and Choudhury

  7. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    passive and hybrid space heating systems. Space Cooling Aand hybrid solar heating and cooling systems. Experimentspassive, and hybrid systems for heating, cooling, and

  8. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    lending officials, and code officials, Stimulate the passiveIII.B.3 Assistant to code officials: Prepare and distributeand their elements to code officials. • Provide guidelines

  9. THE RELATIONSHIP BETWEEN CRYSTALLOGRAPHIC ORIENTATION AND THE PASSIVITY AND BREAKDOWN OF BERYLLIUM

    E-Print Network [OSTI]

    THE RELATIONSHIP BETWEEN CRYSTALLOGRAPHIC ORIENTATION AND THE PASSIVITY AND BREAKDOWN OF BERYLLIUM corrosion for S200D beryllium (Be) was found to decrease logarithmically with increasing chloride

  10. DRAFT INTERIM REPORT: NATIONAL PROGRAM PLAN FOR PASSIVE AND HYBRID SOLAR HEATING AND COOLING

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

    the immediate and potential applications of the solar energyutilities potential of passive finance solar system andthe potentials of dehumidifiers, heat pumps, and solar

  11. Diagonalization of pp-waves

    E-Print Network [OSTI]

    B. V. Ivanov

    1997-05-21

    A coordinate transformation is found which diagonalizes the axisymmetric pp-waves. Its effect upon concrete solutions, including impulsive and shock waves, is discussed.

  12. Wave-wave interactions in solar type III radio bursts

    SciTech Connect (OSTI)

    Thejappa, G.; MacDowall, R. J.

    2014-02-11

    The high time resolution observations from the STEREO/WAVES experiment show that in type III radio bursts, the Langmuir waves often occur as localized magnetic field aligned coherent wave packets with durations of a few ms and with peak intensities well exceeding the strong turbulence thresholds. Some of these wave packets show spectral signatures of beam-resonant Langmuir waves, down- and up-shifted sidebands, and ion sound waves, with frequencies, wave numbers, and tricoherences satisfying the resonance conditions of the oscillating two stream instability (four wave interaction). The spectra of a few of these wave packets also contain peaks at f{sub pe}, 2f{sub pe} and 3 f{sub pe} (f{sub pe} is the electron plasma frequency), with frequencies, wave numbers and bicoherences (computed using the wavelet based bispectral analysis techniques) satisfying the resonance conditions of three wave interactions: (1) excitation of second harmonic electromagnetic waves as a result of coalescence of two oppositely propagating Langmuir waves, and (2) excitation of third harmonic electromagnetic waves as a result of coalescence of Langmuir waves with second harmonic electromagnetic waves. The implication of these findings is that the strong turbulence processes play major roles in beam stabilization as well as conversion of Langmuir waves into escaping radiation in type III radio bursts.

  13. Remotely Interrogated Passive Polarizing Dosimeter (RIPPeD).

    SciTech Connect (OSTI)

    Kemme, Shanalyn A.; Buller, Daniel L.; Dirk, Shawn M.; Boye, Robert R.; Samora, Sally; Washburn, Cody M.; Wheeler, David Roger

    2008-09-01

    Conductive polymers have become an extremely useful class of materials for many optical applications. We have developed an electrochemical growth method for depositing highly conductive ({approx}100 S/cm) polypyrrole. Additionally, we have adapted advanced fabrication methods for use with the polypyrrole resulting in gratings with submicron features. This conductive polymer micro-wire grid provides an optical polarizer with unique properties. When the polymer is exposed to ionizing radiation, its conductivity is affected and the polarization properties of the device, specifically the extinction ratio, change in a corresponding manner. This change in polarization properties can be determined by optically interrogating the device, possibly from a remote location. The result is a passive radiation-sensitive sensor with very low optical visibility. The ability to interrogate the device from a safe standoff distance provides a device useful in potentially dangerous environments. Also, the passive nature of the device make it applicable in applications where external power is not available. We will review the polymer deposition, fabrication methods and device design and modeling. The characterization of the polymer's sensitivity to ionizing radiation and optical testing of infrared polarizers before and after irradiation will also be presented. These experimental results will highlight the usefulness of the conductive infrared polarizer to many security and monitoring applications.

  14. Shallow Water Waves and Solitary Waves Willy Hereman

    E-Print Network [OSTI]

    Hereman, Willy A.M.

    . Water Wave Experiments and Observations VII. Future Directions VIII. Bibliography Glossary Deep water A surface wave is said to be in deep water if its wavelength is much shorter than the local water depthShallow Water Waves and Solitary Waves Willy Hereman Department of Mathematical and Computer

  15. Long wave expansions for water waves over random topography

    E-Print Network [OSTI]

    Craig, Walter

    Long wave expansions for water waves over random topography Anne de Bouard1 , Walter Craig2 interacting with the random bottom. We show that the resulting influence of the random topography is expressed numbers: 76B15, 35Q53, 76M50, 60F17 Keywords :Water waves, random topography, long wave asymptotics #12

  16. On Generating Gravity Waves with Matter and Electromagnetic Waves

    E-Print Network [OSTI]

    C. Barrabes; P. A. Hogan

    2008-04-05

    If a homogeneous plane light-like shell collides head-on with a homogeneous plane electromagnetic shock wave having a step-function profile then no backscattered gravitational waves are produced. We demonstrate, by explicit calculation, that if the matter is accompanied by a homogeneous plane electromagnetic shock wave with a step-function profile then backscattered gravitational waves appear after the collision.

  17. Evolution of Rogue Waves in Interacting Wave Systems

    E-Print Network [OSTI]

    A. Grönlund; B. Eliasson; M. Marklund

    2009-04-03

    Large amplitude water waves on deep water has long been known in the sea faring community, and the cause of great concern for, e.g., oil platform constructions. The concept of such freak waves is nowadays, thanks to satellite and radar measurements, well established within the scientific community. There are a number of important models and approaches for the theoretical description of such waves. By analyzing the scaling behavior of freak wave formation in a model of two interacting waves, described by two coupled nonlinear Schroedinger equations, we show that there are two different dynamical scaling behaviors above and below a critical angle theta_c of the direction of the interacting waves below theta_c all wave systems evolve and display statistics similar to a wave system of non-interacting waves. The results equally apply to other systems described by the nonlinear Schroedinger equations, and should be of interest when designing optical wave guides.

  18. LABORATORY VII: WAVE OPTICS

    E-Print Network [OSTI]

    Minnesota, University of

    LABORATORY VII: WAVE OPTICS Lab VII - 1 In this lab, you will solve problems in ways that take-like behavior. These conditions may be less familiar to you than the conditions for which geometrical optics

  19. Traveling-wave photodetector

    DOE Patents [OSTI]

    Hietala, Vincent M. (Placitas, NM); Vawter, Gregory A. (Albuquerque, NM)

    1993-01-01

    The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size.

  20. Surface wave interferometry 

    E-Print Network [OSTI]

    Halliday, David Fraser

    2009-01-01

    This thesis concerns the application of seismic interferometry to surface waves. Seismic interferometry is the process by which the wavefield between two recording locations is estimated, resulting in new recordings at ...

  1. Relativistic quaternionic wave equation

    E-Print Network [OSTI]

    Schwartz, C

    2006-01-01

    Schrodinger ?time dependent? equation, ? 1 and ? 2 , then?TCP?. The current conservation equation ?3.2? is still truefor this extended wave equation ?8.1?, however, Eq. ?6.7?

  2. Traveling-wave photodetector

    DOE Patents [OSTI]

    Hietala, V.M.; Vawter, G.A.

    1993-12-14

    The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size. 4 figures.

  3. Wave Propagation in Multiferroic Materials

    E-Print Network [OSTI]

    Keller, Scott Macklin

    2013-01-01

    Waves in Magnetoelectric Materials . . . Need forApplication of Multiferroic Materials to Receive AntennaMaterials . . . . . . . . . . . . . . . . . . . . . . . . .

  4. MODULAR AND FULL SIZE SIMPLIFIED BOILING WATER REACTOR DESIGN WITH FULLY PASSIVE SAFETY SYSTEMS

    SciTech Connect (OSTI)

    M. Ishii; S. T. Revankar; T. Downar; Y. Xu, H. J. Yoon; D. Tinkler; U. S. Rohatgi

    2003-06-16

    OAK B204 The overall goal of this three-year research project was to develop a new scientific design of a compact modular 200 MWe and a full size 1200 MWe simplified boiling water reactors (SBWR). Specific objectives of this research were: (1) to perform scientific designs of the core neutronics and core thermal-hydraulics for a small capacity and full size simplified boiling water reactor, (2) to develop a passive safety system design, (3) improve and validate safety analysis code, (4) demonstrate experimentally and analytically all design functions of the safety systems for the design basis accidents (DBA) and (5) to develop the final scientific design of both SBWR systems, 200 MWe (SBWR-200) and 1200 MWe (SBWR-1200). The SBWR combines the advantages of design simplicity and completely passive safety systems. These advantages fit well within the objectives of NERI and the Department of Energy's focus on the development of Generation III and IV nuclear power. The 3-year research program was structured around seven tasks. Task 1 was to perform the preliminary thermal-hydraulic design. Task 2 was to perform the core neutronic design analysis. Task 3 was to perform a detailed scaling study and obtain corresponding PUMA conditions from an integral test. Task 4 was to perform integral tests and code evaluation for the DBA. Task 5 was to perform a safety analysis for the DBA. Task 6 was to perform a BWR stability analysis. Task 7 was to perform a final scientific design of the compact modular SBWR-200 and the full size SBWR-1200. A no cost extension for the third year was requested and the request was granted and all the project tasks were completed by April 2003. The design activities in tasks 1, 2, and 3 were completed as planned. The existing thermal-hydraulic information, core physics, and fuel lattice information was collected on the existing design of the simplified boiling water reactor. The thermal-hydraulic design were developed. Based on a detailed integral system scaling analysis, design parameters were obtained and designs of the compact modular 200 MWe SBWR and the full size 1200 MWe SBWR were developed. These reactors are provided with passive safety systems. A new passive vacuum breaker check valve was designed to replace the mechanical vacuum beaker check valve. The new vacuum breaker check valve was based on a hydrostatic head, and was fail safe. The performance of this new valve was evaluated both by the thermal-hydraulic code RELAP5 and by the experiments in a scaled SBWR facility, PUMA. In the core neutronic design a core depletion model was implemented to PARCS code. A lattice design for the SBWR fuel assemblies was performed. Design improvements were made to the neutronics/thermal-hydraulics models of SBWR-200 and SBWR-1200, and design analyses of these reactors were performed. The design base accident analysis and evaluation of all the passive safety systems were completed as scheduled in tasks 4 and 5. Initial conditions for the small break loss of coolant accidents (LOCA) and large break LOCA using REALP5 code were obtained. Small and large break LOCA tests were performed and the data was analyzed. An anticipated transient with scram was simulated using the RELAP5 code for SBWR-200. The transient considered was an accidental closure of the main steam isolation valve (MSIV), which was considered to be the most significant transient. The evaluation of the RELAP5 code against experimental data for SBWR-1200 was completed. In task 6, the instability analysis for the three SBWR designs (SBWR-1200, SBWR-600 and SBWR-200) were simulated for start-up transients and the results were similar. Neither the geysering instability, nor the loop type instability was predicted by RAMONA-4B in the startup simulation following the recommended procedure by GE. The density wave oscillation was not observed at all because the power level used in the simulation was not high enough. A study was made of the potential instabilities by imposing an unrealistically high power ramp in a short time period, as suggested by GE. RAMON

  5. Monolayer Passivation of Ge(100) Surface via Nitridation and Oxidation Joon Sung Leea,b

    E-Print Network [OSTI]

    Kummel, Andrew C.

    Monolayer Passivation of Ge(100) Surface via Nitridation and Oxidation Joon Sung Leea,b , Sarah R passivation of Ge(100) surface via formation of Ge-N and Ge-O surface species was studied using scanning cyclotron resonance (ECR) plasma source formed an ordered Ge-N structure on a Ge(100) surface at 500o C. DFT

  6. PASSIVITY BASED NONLINEAR CONTROL OF HYDRAULIC ACTUATORS BASED ON AN EULER-LAGRANGE FORMULATION

    E-Print Network [OSTI]

    Li, Perry Y.

    for this energy function. A passiv- ity property for the actuator is exhibited in which the hydraulic supply rate- work for the mechanical-pressure dynamics in a hydraulic actua- #12;tor based upon physical energyPASSIVITY BASED NONLINEAR CONTROL OF HYDRAULIC ACTUATORS BASED ON AN EULER-LAGRANGE FORMULATION

  7. A Nonlinear Spring Model of Hydraulic Actuator for Passive Controller Design in Bilateral Tele-operation

    E-Print Network [OSTI]

    Li, Perry Y.

    this model, an energy based controller for passive bilateral tele-operation of hydraulic actuator is designedA Nonlinear Spring Model of Hydraulic Actuator for Passive Controller Design in Bilateral Tele of hydraulic medium are used to develop a nonlinear spring-like model for a hydraulic actuator. Using

  8. American Institute of Aeronautics and Astronautics A Passive Microscale Solar Sail

    E-Print Network [OSTI]

    Peck, Mason A.

    .0175. This architecture can provide passive solar sail formations and various passive methods of changing orbital energy propulsion techniques and missions. Dust's unique behavior motivates the present study of the orbital the promise of propellantless spacecraft designs which approach these length scales. He envisions smart

  9. Passivity based compressor surge control using a close-coupled valve

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    Passivity based compressor surge control using a close-coupled valve Jan Tommy Gravdahl and Olav-coupled valve. The analysis shows that the system has certain passivity properties which leads to a simple controller for the close- coupled valve. 1 Introduction If the ow through a compressor is throttled

  10. Passivity Index for Switched System Technical Report of the ISIS Group

    E-Print Network [OSTI]

    Antsaklis, Panos

    Passivity Index for Switched System Design Technical Report of the ISIS Group at the University of Notre Dame ISIS-09-002 May, 2009 Michael J. McCourt and Panos J. Antsaklis Department of Electrical.J. McCourt and P.J. Antsaklis, "Passivity Index for Switched System Design," ISIS Technical Report

  11. Characterization of Polymer-Coated Glass as a Passive Air Sampler for

    E-Print Network [OSTI]

    Gobas, Frank

    Characterization of Polymer-Coated Glass as a Passive Air Sampler for Persistent Organic Pollutants or POGs as passive air samplers was investigated during an uptake experiment in an indoor environment construction materials and/ or are contained in common household products. Examples include brominated flame

  12. Technical note Barriers and opportunities for passive removal of indoor ozone

    E-Print Network [OSTI]

    Siegel, Jeffrey

    Technical note Barriers and opportunities for passive removal of indoor ozone Elliott T. Gall presents a Monte Carlo simulation to assess passive removal materials (PRMs) that remove ozone of homes in Houston, Texas, were taken from the literature and combined with back- ground ozone removal

  13. Passive Viscoelastic Constrained Layer Damping Application for a Small Aircraft Landing Gear System

    E-Print Network [OSTI]

    Kochersberger, Kevin

    Passive Viscoelastic Constrained Layer Damping Application for a Small Aircraft Landing Gear System. Ferris 9/30/2008 Blacksburg, VA Keywords: Viscoelastic, Damping, Loss Factor, Landing Gear, Aircraft #12;Passive Viscoelastic Constrained Layer Damping Application for a Small Aircraft Landing Gear System

  14. Chemical passivity of III-VI bilayer terminated Si,,111... Jonathan A. Adamsa

    E-Print Network [OSTI]

    Olmstead, Marjorie

    Chemical passivity of III-VI bilayer terminated Si,,111... Jonathan A. Adamsa and Aaron A online 17 October 2005 The chemical stability of Si 111 , terminated with bilayer AlSe and GaSe, upon electronic and atomic structure do not imply similar chemical passivity. While Si 111 :GaSe is largely

  15. Application-Specific Economic Analysis of Integral Passives in Printed Circuit Boards

    E-Print Network [OSTI]

    Sandborn, Peter

    Application-Specific Economic Analysis of Integral Passives in Printed Circuit Boards Bevin Etienne to integral passives that are embedded within a printed circuit board. In this study we assume that integral of ownership model is used to determine the impact of throughput changes associated with fabricating integral

  16. Method for passive cooling liquid metal cooled nuclear reactors, and system thereof

    DOE Patents [OSTI]

    Hunsbedt, Anstein (Los Gatos, CA); Busboom, Herbert J. (San Jose, CA)

    1991-01-01

    A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of partitions surrounding the reactor vessel in spaced apart relation forming intermediate areas for circulating heat transferring fluid which remove and carry away heat from the reactor vessel.

  17. A NEW PASSIVE CONTROLLER FOR A HYDRAULIC HUMAN POWER AMPLIFIER Perry Y. Li

    E-Print Network [OSTI]

    Li, Perry Y.

    A NEW PASSIVE CONTROLLER FOR A HYDRAULIC HUMAN POWER AMPLIFIER Perry Y. Li Department of Mechanical A new, intrinsically passive controller for hydraulic human power amplifier is presented. The hydraulic human power am- plifier is a tool that amplifies (or attenuates) the force that the hu- man exerts on it

  18. PASSIVE BILATERAL TELE-OPERATION AND HUMAN POWER AMPLIFICATION WITH PNEUMATIC ACTUATORS

    E-Print Network [OSTI]

    Li, Perry Y.

    PASSIVE BILATERAL TELE-OPERATION AND HUMAN POWER AMPLIFICATION WITH PNEUMATIC ACTUATORS Venkat the human power input. From sys- tems theory [1], it is known that closed loop interaction between a passive Durbha Center for Compact and Efficient Fluid Power Department of Mechanical Engineering University

  19. Hydrogen passivation and activation of oxygen complexes in silicon S. N. Rashkeev,a)

    E-Print Network [OSTI]

    Pantelides, Sokrates T.

    Hydrogen passivation and activation of oxygen complexes in silicon S. N. Rashkeev,a) M. Di Ventra-principles calculations in terms of which we describe the role of hydrogen in passivating or activating oxygen complexes activity of the cluster. Furthermore, the addition of a hydrogen atom in the core structure of thermal

  20. Hydrogen effects on stainless steel passive film fracture studied by nanoindentation , L.J. Qiao a,

    E-Print Network [OSTI]

    Volinsky, Alex A.

    Letter Hydrogen effects on stainless steel passive film fracture studied by nanoindentation Y. Yao. Hydrogen absorption a b s t r a c t Hydrogen effects on the fracture stress of passive film formed on 316L stainless steel were studied by nanoindentation. Hydrogen accumulated primarily on the sample surface

  1. Microfluidic passive samplers for in situ collection of live aquatic protists

    E-Print Network [OSTI]

    Shor, Leslie McCabe

    Microfluidic passive samplers for in situ collection of live aquatic protists Grant M. Bouchillon of microfluidic passive samplers for the collection of live protists from natural aquatic habitats. Microfluidic microfluidic observation galleries. In field experiments, live protists and other microorganisms were collected

  2. A Wireless Passive RCS-based Temperature Sensor using Liquid Metal and Microfluidics Technologies

    E-Print Network [OSTI]

    Tentzeris, Manos

    A Wireless Passive RCS-based Temperature Sensor using Liquid Metal and Microfluidics Technologies@laas.fr Abstract-- A novel wireless and passive temperature sensor that utilizes microfluidic and liquid metal-circuiting of their gap through the temperature-expansion of liquid metal inside a bridging microfluidic channel

  3. Author's personal copy Modeling of a passive DMFC operating with neat methanol

    E-Print Network [OSTI]

    Zhao, Tianshou

    Author's personal copy Modeling of a passive DMFC operating with neat methanol W.W. Yang, T.S. Zhao 2011 Keywords: Fuel cells Direct methanol fuel cells Neat methanol Mass transport Model a b s t r a c t A mathematical model is developed to simulate the fundamental transport phenomena in a passive direct methanol

  4. Some Results In Passive-Dynamic Walking Mariano Garcia Andy Ruina

    E-Print Network [OSTI]

    Ruina, Andy L.

    Some Results In Passive-Dynamic Walking Mariano Garcia Andy Ruina Michael Coleman Anindya it as a natural motion of a simple uncontrolled and unpowered dynamical system, or a passive-dynamic system walking is based on an uncontrolled mechanical process by designing, building, and studying uncontrolled

  5. Oxygen-Reducing Biocathodes Operating with Passive Oxygen Transfer in Microbial Fuel Cells

    E-Print Network [OSTI]

    Oxygen-Reducing Biocathodes Operating with Passive Oxygen Transfer in Microbial Fuel Cells Xue Xia.R. China Department of Civil and Environmental Engineering, Penn State University, 231Q Sackett Building of the catholyte. To avoid the need for aeration, the ability of biocathodes to function with passive oxygen

  6. Particle Filter-based Trajectory Estimation with Passive UHF RFID Fingerprints in Unknown Environments

    E-Print Network [OSTI]

    Zell, Andreas

    Particle Filter-based Trajectory Estimation with Passive UHF RFID Fingerprints in Unknown approach to esti- mating the trajectory of a robot by means of inexpensive passive RFID tags and odometry), where map building and estimating the trajectory of the robot are performed concur- rently. A crucial

  7. Evaluating fluid semantics for passive stochastic process algebra cooperation Richard A. Haydena

    E-Print Network [OSTI]

    Imperial College, London

    Evaluating fluid semantics for passive stochastic process algebra cooperation Richard A. Haydena , Jeremy T. Bradleya aDept. of Computing, Imperial College London, Huxley Building, 180 Queen's Gate massive performance models. Passive cooper- ation is a popular cooperation mechanism frequently used

  8. Achievable Push-Manipulation for Complex Passive Mobile Objects using Past Experience

    E-Print Network [OSTI]

    Veloso, Manuela M.

    Achievable Push-Manipulation for Complex Passive Mobile Objects using Past Experience Tekin Meriçli and object trajecto- ries as building blocks to generate achievable and collision- free push plans.ifaamas.org). All rights reserved. Figure 1: Realistically simulated passive mobile ob- jects on freely

  9. A Hovering Flapping-Wing Microrobot with Altitude Control and Passive Upright Stability

    E-Print Network [OSTI]

    Wood, Robert

    A Hovering Flapping-Wing Microrobot with Altitude Control and Passive Upright Stability Z. E. Teoh forces [2]. Despite these challenges, various groups have reported success in building small scale aerial that enabled liftoff was an underactuated, passive mechanism that regulated the angle of attack of the wings [7

  10. Gravity changes and passive SO2 degassing at the Masaya caldera complex, Nicaragua

    E-Print Network [OSTI]

    Williams-Jones, Glyn

    Gravity changes and passive SO2 degassing at the Masaya caldera complex, Nicaragua Glyn Williams-gravity; passive degassing; persistent activity; convection 1. Introduction Located in western Nicaragua, Masaya. The main edi¢ce-building activity 0377-0273 / 03 / $ ^ see front matter ß 2003 Elsevier Science B.V. All

  11. Nonlinear Muscles, Passive Viscoelasticity and Body Taper Conspire To Create Neuromechanical Phase Lags

    E-Print Network [OSTI]

    Holmes, Philip

    Nonlinear Muscles, Passive Viscoelasticity and Body Taper Conspire To Create Neuromechanical Phase a model of anguilliform (eel-like) swimming in slender fishes. Building on a continuum mechanical to a combination of passive viscoelastic and geometric properties of the body and active muscle properties

  12. High-efficiency photonic crystal microlaser integrated with a passive waveguide

    E-Print Network [OSTI]

    Baba, Toshihiko

    High-efficiency photonic crystal microlaser integrated with a passive waveguide Hideki Watanabe), Japan Science and Technology (JST) Agency, Sanbancho Building 5, Sanbancho, Tiyodaku, Tokyo 102 passive waveguide was fabricated by a MOCVD butt-joint regrowth process. The boundary between the active

  13. Effect of white water chemistry on corrosion passivation behavior of 304L stainless steel

    E-Print Network [OSTI]

    Das, Suman

    Effect of white water chemistry on corrosion passivation behavior of 304L stainless steel What, while sulfate has an inhibiting effect on pitting corrosion. Stainless steels rely on passive films are closely related to repassivation properties of the stainless steel. Crack tip in Stress Corrosion Cracking

  14. Passive strain distribution in the interosseous ligament of the forearm: Implications for injury reconstruction

    E-Print Network [OSTI]

    Gabriel, M. T.; Pfaeffle, H. J.; Stabile, Kenneth J.; Tomaino, M. M.; Fischer, Kenneth J.

    2004-03-01

    . The objective of this study was to quantify the passive strain distribution of the IOL of the forearm with passive rotation of the forearm throughout the range of motion. Methods: The 3-dimensional motions of the radius with respect to the ulna were measured...

  15. Passive sampling methods to determine household and personal care product use

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Passive sampling methods to determine household and personal care product use DEBORAH H. BENNETTa, cleaning products, passive sampling, SUPERB, longitudinal. Introduction Personal care and household care products, such as cleaning products and pesticides, are frequently used in most house- holds although

  16. Sidewall passivation for InGaN/GaN nanopillar light emitting diodes

    SciTech Connect (OSTI)

    Choi, Won Hyuck; Abraham, Michael; Yu, Shih-Ying [Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); You, Guanjun; Liu, Jie; Wang, Li; Xu, Jian, E-mail: jianxu@engr.psu.edu [Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); Mohney, Suzanne E., E-mail: mohney@ems.psu.edu [Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)

    2014-07-07

    We studied the effect of sidewall passivation on InGaN/GaN multiquantum well-based nanopillar light emitting diode (LED) performance. In this research, the effects of varying etch rate, KOH treatment, and sulfur passivation were studied for reducing nanopillar sidewall damage and improving device efficiency. Nanopillars prepared under optimal etching conditions showed higher photoluminescence intensity compared with starting planar epilayers. Furthermore, nanopillar LEDs with and without sulfur passivation were compared through electrical and optical characterization. Suppressed leakage current under reverse bias and four times higher electroluminescence (EL) intensity were observed for passivated nanopillar LEDs compared with unpassivated nanopillar LEDs. The suppressed leakage current and EL intensity enhancement reflect the reduction of non-radiative recombination at the nanopillar sidewalls. In addition, the effect of sulfur passivation was found to be very stable, and further insight into its mechanism was gained through transmission electron microscopy.

  17. Passive regeneration of catalyst coated knitted fiber diesel particulate traps

    SciTech Connect (OSTI)

    Mayer, A.; Emig, G.; Gmehling, B.; Popovska, N.; Hoelemann, K.; Buck, A.

    1996-09-01

    Knitted fiber particulate traps facilitate deep-bed structures. These have excellent filtration properties, particularly for ultra-fine particulates. They are also suitable as substrate for catalytic processes. The two characteristics are: high total surface area of the filaments, and good mass transfer. These are prerequisites for intense catalytic activity. The deposited soot is uniformly distributed. Therefore, temperature peaks are avoided during regeneration. The tested coatings lower the regeneration temperature by about 200 C to burn-off temperatures below 350 C. Further improvements seem attainable. Thus, a purely passive regeneration appears feasible for most applications. The system is autonomous and cost effective. However, in extreme low load situations, e.g. city bus services, the necessary exhaust temperatures are not attained. Hence, burners or electrical heating is necessary for trap regeneration. Nevertheless, catalytic coating is attractive for substantially reducing the regeneration energy requirements.

  18. Four-feedplate operation of ZT-40 with passive crowbars

    SciTech Connect (OSTI)

    Baker, D.A.; Buchenauer, C.J.; Burkhardt, L.C.

    1982-01-01

    This report summarizes the measurements made on the ZT-40 reversed-field pinch during the start-up on October 5, 1979, until May 1980, when the power crowbar circuitry became operational. The material contained herein pertains to the operation of ZT-40 with four current feedpoints, passive crowbars, and a nonconducting, high-purity alumina liner. The plasma properties are given for reversed-field pinches obtained either by aided or self-reversal and for nonreversed-field (stabilized) pinches. It is demonstrated that ZT-40 was capable of being ohmically heated to approx. 100 eV electron temperatures during the approx. 0.1 ms rise to peak current. Operation is obtained in which the fluctuations during start-up are observed to decrease later in the discharge, producing quiet periods of approx. 0.1 ms.

  19. Passive Spectroscopic Diagnostics for Magnetically-confined Fusion Plasmas

    SciTech Connect (OSTI)

    Stratton, B. C.; Biter, M.; Hill, K. W.; Hillis, D. L.; Hogan, J. T.

    2007-07-18

    Spectroscopy of radiation emitted by impurities and hydrogen isotopes plays an important role in the study of magnetically-confined fusion plasmas, both in determining the effects of impurities on plasma behavior and in measurements of plasma parameters such as electron and ion temperatures and densities, particle transport, and particle influx rates. This paper reviews spectroscopic diagnostics of plasma radiation that are excited by collisional processes in the plasma, which are termed 'passive' spectroscopic diagnostics to distinguish them from 'active' spectroscopic diagnostics involving injected particle and laser beams. A brief overview of the ionization balance in hot plasmas and the relevant line and continuum radiation excitation mechanisms is given. Instrumentation in the soft X-ray, vacuum ultraviolet, ultraviolet, visible, and near-infrared regions of the spectrum is described and examples of measurements are given. Paths for further development of these measurements and issues for their implementation in a burning plasma environment are discussed.

  20. Progress in passive solar energy systems. Volume 8. Part 1

    SciTech Connect (OSTI)

    Hayes, J.; Andrejko, D.A.

    1983-01-01

    This book presents the papers given at a conference sponsored by the US DOE, the Solar Energy Research Institute, SolarVision, Inc., and the Southern California Solar Energy Society. The topics considered at the conference included sizing solar energy systems for agricultural applications, a farm scale ethanol production plant, the EEC wind energy RandD program, the passive solar performance assessment of an earth-sheltered house, the ARCO 1 MW photovoltaic power plant, the performance of a dendritic web photovoltaic module, second generation point focused concentrators, linear fresnel lens concentrating photovoltaic collectors, photovoltaic conversion efficiency, amorphous silicon thin film solar cells, a photovoltaic system for a shopping center, photovoltaic power generation for the utility industry, spectral solar radiation, and the analysis of insolation data.

  1. Coarse-grained description of a passive scalar

    E-Print Network [OSTI]

    Antonio Celani; Marco Martins Afonso; Andrea Mazzino

    2006-02-27

    The issue of the parameterization of small-scale dynamics is addressed in the context of passive-scalar turbulence. The basic idea of our strategy is to identify dynamical equations for the coarse-grained scalar dynamics starting from closed equations for two-point statistical indicators. With the aim of performing a fully-analytical study, the Kraichnan advection model is considered. The white-in-time character of the latter model indeed leads to closed equations for the equal-time scalar correlation functions. The classical closure problem however still arises if a standard filtering procedure is applied to those equations in the spirit of the large-eddy-simulation strategy. We show both how to perform exact closures and how to identify the corresponding coarse-grained scalar evolution.

  2. Apparatus and process for passivating an SRF cavity

    DOE Patents [OSTI]

    Myneni, Ganapati Rao; Wallace, John P

    2014-12-02

    An apparatus and process for the production of a niobium cavity exhibiting high quality factors at high gradients is provided. The apparatus comprises a first chamber positioned within a second chamber, an RF generator and vacuum pumping systems. The process comprises placing the niobium cavity in a first chamber of the apparatus; thermally treating the cavity by high temperature in the first chamber while maintaining high vacuum in the first and second chambers; and applying a passivating thin film layer to a surface of the cavity in the presence of a gaseous mixture and an RF field. Further a niobium cavity exhibiting high quality factors at high gradients produced by the method of the invention is provided.

  3. System and method for floating-substrate passive voltage contrast

    DOE Patents [OSTI]

    Jenkins, Mark W. (Albuquerque, NM); Cole, Jr., Edward I. (Albuquerque, NM); Tangyunyong, Paiboon (Albuquerque, NM); Soden, Jerry M. (Placitas, NM); Walraven, Jeremy A. (Albuquerque, NM); Pimentel, Alejandro A. (Albuquerque, NM)

    2009-04-28

    A passive voltage contrast (PVC) system and method are disclosed for analyzing ICs to locate defects and failure mechanisms. During analysis a device side of a semiconductor die containing the IC is maintained in an electrically-floating condition without any ground electrical connection while a charged particle beam is scanned over the device side. Secondary particle emission from the device side of the IC is detected to form an image of device features, including electrical vias connected to transistor gates or to other structures in the IC. A difference in image contrast allows the defects or failure mechanisms be pinpointed. Varying the scan rate can, in some instances, produce an image reversal to facilitate precisely locating the defects or failure mechanisms in the IC. The system and method are useful for failure analysis of ICs formed on substrates (e.g. bulk semiconductor substrates and SOI substrates) and other types of structures.

  4. NATURAL CONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSIS AND RESULTS

    SciTech Connect (OSTI)

    Gadgil, A.; Bauman, F.; Kammerud, R.

    1981-04-01

    Computer programs have been developed to numerically simulate natural convection in two- and three-dimensional room geometries. The programs have been validated using published data from the literature, results from a full-scale experiment performed at the Massachusetts Institute of Technology, and results from a small-scale experiment performed at LBL. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single zone in a direct-gain passive solar building. It is found that the convective heat transfer coefficients between the air and the enclosure surfaces can be substantially different from the values assumed in the standard building energy analysis methods, and can exhibit significant variations across a given surface. This study implies that the building heating loads calculated by standard building energy analysis methods may have substantial errors as a result of their use of common assumptions regarding the convection processes which occur in an enclosure.

  5. Segmented saddle-shaped passive stabilization conductors for toroidal plasmas

    DOE Patents [OSTI]

    Leuer, J.A.

    1990-05-01

    A large toroidal vacuum chamber for plasma generation and confinement is lined with a toroidal blanket for shielding using modules segmented in the toroidal direction. To provide passive stabilization in the same manner as a conductive vacuum chamber wall, saddle-shaped conductor loops are provided on blanket modules centered on a midplane of the toroidal chamber with horizontal conductive bars above and below the midplane, and vertical conductive legs on opposite sides of each module to provide return current paths between the upper and lower horizontal conductive bars. The close proximity of the vertical legs provided on adjacent modules without making physical contact cancel the electromagnetic field of adjacent vertical legs. The conductive bars spaced equally above and below the midplane simulate toroidal conductive loops or hoops that are continuous, for vertical stabilization of the plasma even though they are actually segmented. 5 figs.

  6. Segmented saddle-shaped passive stabilization conductors for toroidal plasmas

    DOE Patents [OSTI]

    Leuer, James A. (Encinitas, CA)

    1990-05-01

    A large toroidal vacuum chamber for plasma generation and confinement is lined with a toroidal blanket for shielding using modules segmented in the toroidal direction. To provide passive stabilization in the same manner as a conductive vacuum chamber wall, saddle-shaped conductor loops are provided on blanket modules centered on a midplane of the toroidal chamber with horizontal conductive bars above and below the midplane, and vertical conductive legs on opposite sides of each module to provide return current paths between the upper and lower horizontal conductive bars. The close proximity of the vertical legs provided on adjacent modules without making physical contact cancel the electromagnetic field of adjacent vertical legs. The conductive bars spaced equally above and below the midplane simulate toroidal conductive loops or hoops that are continuous, for vertical stabilization of the plasma even though they are actually segmented.

  7. A low-frequency passive seismic array experiment over an onshore oil field in Abu Dhabi, United Arab Emirates

    E-Print Network [OSTI]

    Ali, Mohammed

    A low-frequency passive seismic array experiment over an onshore oil field in Abu Dhabi, United-frequency passive seismic experiment using an array of 49 3C broadband seismometers was conducted over an onshore

  8. Passive decoy state quantum key distribution with practical light sources

    E-Print Network [OSTI]

    Marcos Curty; Xiongfeng Ma; Bing Qi; Tobias Moroder

    2009-11-14

    Decoy states have been proven to be a very useful method for significantly enhancing the performance of quantum key distribution systems with practical light sources. While active modulation of the intensity of the laser pulses is an effective way of preparing decoy states in principle, in practice passive preparation might be desirable in some scenarios. Typical passive schemes involve parametric down-conversion. More recently, it has been shown that phase randomized weak coherent pulses (WCP) can also be used for the same purpose [M. Curty {\\it et al.}, Opt. Lett. {\\bf 34}, 3238 (2009).] This proposal requires only linear optics together with a simple threshold photon detector, which shows the practical feasibility of the method. Most importantly, the resulting secret key rate is comparable to the one delivered by an active decoy state setup with an infinite number of decoy settings. In this paper we extend these results, now showing specifically the analysis for other practical scenarios with different light sources and photo-detectors. In particular, we consider sources emitting thermal states, phase randomized WCP, and strong coherent light in combination with several types of photo-detectors, like, for instance, threshold photon detectors, photon number resolving detectors, and classical photo-detectors. Our analysis includes as well the effect that detection inefficiencies and noise in the form of dark counts shown by current threshold detectors might have on the final secret ket rate. Moreover, we provide estimations on the effects that statistical fluctuations due to a finite data size can have in practical implementations.

  9. Standard test method for nondestructive assay of plutonium in scrap and waste by passive neutron coincidence counting

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    2010-01-01

    Standard test method for nondestructive assay of plutonium in scrap and waste by passive neutron coincidence counting

  10. Spectral Domain Passive remote sensing systems measure the

    E-Print Network [OSTI]

    Frank, Thomas D.

    Archive Read This Article on the Nature of Light #12;Our energy source, the sun, radiates electromagnetic are equally and repetitively spaced in time Our energy source, the sun, radiates electromagnetic energy. EM energy. EM radiation refers to all energy that radiates in accordance with basic wave theory: 1. Energy

  11. Gravitational-wave Detection With Matter-wave Interferometers Based On Standing Light Waves

    E-Print Network [OSTI]

    Dongfeng Gao; Peng Ju; Baocheng Zhang; Mingsheng Zhan

    2011-03-25

    We study the possibility of detecting gravitational-waves with matter-wave interferometers, where atom beams are split, deflected and recombined totally by standing light waves. Our calculation shows that the phase shift is dominated by terms proportional to the time derivative of the gravitational wave amplitude. Taking into account future improvements on current technologies, it is promising to build a matter-wave interferometer detector with desired sensitivity.

  12. A motivational interviewing intervention to PREvent PAssive Smoke Exposure (PREPASE) in children with a high risk of asthma: design of a randomised controlled trial

    E-Print Network [OSTI]

    2013-01-01

    reduce passive smoke exposure in low-income households withHousehold nicotine levels are measured (at baseline and 12 months after baseline) by placing a passive

  13. Explosive plane-wave lens

    DOE Patents [OSTI]

    Marsh, S.P.

    1988-03-08

    An explosive plane-wave air lens which enables a spherical wave form to be converted to a planar wave without the need to specially machine or shape explosive materials is described. A disc-shaped impactor having a greater thickness at its center than around its periphery is used to convert the spherical wave into a plane wave. When the wave reaches the impactor, the center of the impactor moves first because the spherical wave reaches the center of the impactor first. The wave strikes the impactor later in time as one moves radially along the impactor. Because the impactor is thinner as one moves radially outward, the velocity of the impactor is greater at the periphery than at the center. An acceptor explosive is positioned so that the impactor strikes the acceptor simultaneously. Consequently, a plane detonation wave is propagated through the acceptor explosive. 4 figs.

  14. Explosive plane-wave lens

    DOE Patents [OSTI]

    Marsh, S.P.

    1987-03-12

    An explosive plane-wave air lens which enables a spherical wave form to be converted to a planar wave without the need to specially machine or shape explosive materials is described. A disc-shaped impactor having a greater thickness at its center than around its periphery is used to convert the spherical wave into a plane wave. When the wave reaches the impactor, the center of the impactor moves first because the spherical wave reaches the center of the impactor first. The wave strikes the impactor later in time as one moves radially along the impactor. Because the impactor is thinner as one moves radially outward, the velocity of the impactor is greater at the periphery than at the center. An acceptor explosive is positioned so that the impactor strikes the acceptor simultaneously. Consequently, a plane detonation wave is propagated through the acceptor explosive. 3 figs., 3 tabs.

  15. Passive tracers in a general circulation model of the Southern Ocean I. G. Stevens, D. P. Stevens

    E-Print Network [OSTI]

    Stevens, David

    Passive tracers in a general circulation model of the Southern Ocean I. G. Stevens, D. P. Stevens: 22 January 1999 / Accepted: 12 February 1999 Abstract. Passive tracers are used in an o-line version and provide information on the inter-ocean exchange of water masses. The use of passive tracers allows

  16. TECTONICS, VOL. 20, NO. 6, PAGES 1021-1039,DECEMBER 2001 Dynamic modeling of the transition from passive to

    E-Print Network [OSTI]

    Podladchikov, Yuri

    passive to active rifting, application to the Pannonian basin Ritske S. Huismansl Institute of Earth of the feedback relation between passive far-field-induced extension and active Raleigh Taylor instable upwelling of the astheno- sphere. We show that active mantle upwelling following a phase of passive extension are viable

  17. Revisiting Hot Passive Replication Ruben de Juan-Marin, Hendrik Decker and Francesc D. Mu~noz-Escoi

    E-Print Network [OSTI]

    Muñoz, Francesc

    Revisiting Hot Passive Replication Rub´en de Juan-Mar´in, Hendrik Decker and Francesc D. Mu Valencia, Spain {rjuan, hendrik, fmunyoz}@iti.upv.es Abstract Passive replication has been extensively of communication synchrony. Therefore, we propose a new, detailed classification of hot passive replication

  18. ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 24, NO. 2, 2007, 118 Probability Distribution Function of a Forced Passive

    E-Print Network [OSTI]

    Hu, Yongyun

    of a Forced Passive Tracer in the Lower Stratosphere HU Yongyun ( ) Department of Atmospheric Sciences, School The probability distribution function (PDF) of a passive tracer, forced by a "mean gradient", is stud- ied. First the PDFs of such an externally forced passive tracer. Then, we carry out numerical simulations

  19. Modeling RF Passive Circuits using Coupled Lines and Scalable Models Sidharth Dalmia, Sung Hwan Min and Madhavan Swaminathan

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    the building blocks for other passive structures such as spiral inductors, transformers and capacitors [1Modeling RF Passive Circuits using Coupled Lines and Scalable Models Sidharth Dalmia, Sung Hwan Min.swaminathan@ee.gatech.edu Abstract Coupled line sections are critical structures in distributed RF and microwave passive circuits

  20. ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR CELLS

    E-Print Network [OSTI]

    ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR- contacted rear being either passivated by atomic-layer- deposited Al2O3 or by stacks consisting-Si passivation to thermal processes. ATOMIC-LAYER-DEPOSITED Al2O3 Recently, it was shown that thin films