Sample records for references acoustical society

  1. Proceedings of Acoustics 2012 -Fremantle 21-23 November 2012, Fremantle, Australia Australian Acoustical Society 1

    E-Print Network [OSTI]

    New South Wales, University of

    Proceedings of Acoustics 2012 - Fremantle 21-23 November 2012, Fremantle, Australia Australian consequently became the one of the dominant styles in Western and other musics. THE VOICE vs. OTHER MUSICAL string is excited by striking--an impulsive and therefore broad-band mechanism for energy input. In bowed

  2. Methods And Systems For Using Reference Images In Acoustic Image Processing

    DOE Patents [OSTI]

    Moore, Thomas L. (Livermore, CA); Barter, Robert Henry (Oakland, CA)

    2005-01-04T23:59:59.000Z

    A method and system of examining tissue are provided in which a field, including at least a portion of the tissue and one or more registration fiducials, is insonified. Scattered acoustic information, including both transmitted and reflected waves, is received from the field. A representation of the field, including both the tissue and the registration fiducials, is then derived from the received acoustic radiation.

  3. Acoustic testing and modeling: An advanced undergraduate laboratory Daniel A. Russella)

    E-Print Network [OSTI]

    Russell, Daniel A.

    -depth experience. However, while the vast majority of acoustics education takes place at the graduate level, undergraduate acoustics education has been a concern of members of the Acoustical Society of America courses in acoustics,2­4 and offers an academic minor in acous- tics for physics and engineering students

  4. Bulletin of the Seismological Society of America, 90, 6B, pp. S65S76, December 2000 The SCEC Southern California Reference Three-Dimensional Seismic

    E-Print Network [OSTI]

    Clayton, Robert W.

    Southern California Reference Three-Dimensional Seismic Velocity Model Version 2 by Harold Magistrale-dimensional (3D) seismic velocity model of southern California developed by the Southern California Earthquake mesh of seismic velocity and density values. This parameterization is convenient to store, transfer

  5. UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging

    E-Print Network [OSTI]

    Buckingham, Michael

    UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging using ambient noise ............................................................................................... xviii SECTION 1: INTRODUCTION Chapter 1: Acoustic Daylight......................................................................... 1 1.2 Acoustic Daylight

  6. Acoustic Heating Peter Ulmschneider

    E-Print Network [OSTI]

    Ulmschneider, Peter

    mechanisms. 1. The acoustic heating theory Only a few years after Edlen's (1941) discovery that the solar acoustic wave radiation- · b. field acoustic wave Figure 1. Panel a: Acoustic heating in late-type stars: effective temperature TeJ f, gravity g and mixing length parameter fr. Panel b: Acoustic heating in early

  7. Acoustic transducer

    DOE Patents [OSTI]

    Drumheller, D.S.

    1997-12-30T23:59:59.000Z

    An acoustic transducer is described comprising a one-piece hollow mandrel into the outer surface of which is formed a recess with sides perpendicular to the central axis of the mandrel and separated by a first distance and with a bottom parallel to the central axis and within which recess are a plurality of washer-shaped discs of a piezoelectric material and at least one disc of a temperature-compensating material with the discs being captured between the sides of the recess in a pre-stressed interference fit, typically at 2,000 psi of compressive stress. The transducer also includes a power supply and means to connect to a measurement device. The transducer is intended to be used for telemetry between a measurement device located downhole in an oil or gas well and the surface. The transducer is of an construction that is stronger with fewer joints that could leak fluids into the recess holding the piezoelectric elements than is found in previous acoustic transducers. 4 figs.

  8. Acoustic transducer

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    1997-01-01T23:59:59.000Z

    An acoustic transducer comprising a one-piece hollow mandrel into the outer surface of which is formed a recess with sides perpendicular to the central axis of the mandrel and separated by a first distance and with a bottom parallel to the central axis and within which recess are a plurality of washer-shaped discs of a piezoelectric material and at least one disc of a temperature-compensating material with the discs being captured between the sides of the recess in a pre-stressed interference fit, typically at 2000 psi of compressive stress. The transducer also includes a power supply and means to connect to a measurement device. The transducer is intended to be used for telemetry between a measurement device located downhole in an oil or gas well and the surface. The transducer is of an construction that is stronger with fewer joints that could leak fluids into the recess holding the piezoelectric elements than is found in previous acoustic transducers.

  9. Audio Engineering Society Convention Paper 7893

    E-Print Network [OSTI]

    Maher, Robert C.

    Service (NPS) for protection and monitoring is the natural acoustical environment, or natural soundscape, of each park. The natural soundscape refers to the intrinsic acoustical environment of an area within.maher@montana.edu ABSTRACT According to current U.S. National Park Service (NPS) management policies, the natural soundscape

  10. Acoustic transducer

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    2000-01-01T23:59:59.000Z

    An active acoustic transducer tool for use down-hole applications. The tool includes a single cylindrical mandrel including a shoulder defining the boundary of a narrowed portion over which is placed a sandwich-style piezoelectric tranducer assembly. The piezoelectric transducer assembly is prestressed by being placed in a thermal interference fit between the shoulder of the mandrel and the base of an anvil which is likewise positioned over the narrower portion of the mandrel. In the preferred embodiment, assembly of the tool is accomplished using a hydraulic jack to stretch the mandrel prior to emplacement of the cylindrical sandwich-style piezoelectric transducer assembly and anvil. After those elements are positioned and secured, the stretched mandrel is allowed to return substantially to its original (pre-stretch) dimensions with the result that the piezoelectric transducer elements are compressed between the anvil and the shoulder of the mandrel.

  11. Acoustic cryocooler

    DOE Patents [OSTI]

    Swift, Gregory W. (Santa Fe, NM); Martin, Richard A. (Los Alamos, NM); Radenbaugh, Ray (Louisville, CO)

    1990-01-01T23:59:59.000Z

    An acoustic cryocooler with no moving parts is formed from a thermoacoustic driver (TAD) driving a pulse tube refrigerator (PTR) through a standing wave tube. Thermoacoustic elements in the TAD are spaced apart a distance effective to accommodate the increased thermal penetration length arising from the relatively low TAD operating frequency in the range of 15-60 Hz. At these low operating frequencies, a long tube is required to support the standing wave. The tube may be coiled to reduce the overall length of the cryocooler. One or two PTR's are located on the standing wave tube adjacent antinodes in the standing wave to be driven by the standing wave pressure oscillations. It is predicted that a heat input of 1000 W at 1000 K will maintian a cooling load of 5 W at 80 K.

  12. COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO...

    Open Energy Info (EERE)

    THE COSO GEOTHERMAL FIELD, CA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE...

  13. Poroelastic references

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Christina Morency

    This file contains a list of relevant references on the Biot theory (forward and inverse approaches), the double-porosity and dual-permeability theory, and seismic wave propagation in fracture porous media, in RIS format, to approach seismic monitoring in a complex fractured porous medium such as Brady?s Geothermal Field.

  14. Poroelastic references

    SciTech Connect (OSTI)

    Christina Morency

    2014-12-12T23:59:59.000Z

    This file contains a list of relevant references on the Biot theory (forward and inverse approaches), the double-porosity and dual-permeability theory, and seismic wave propagation in fracture porous media, in RIS format, to approach seismic monitoring in a complex fractured porous medium such as Brady?s Geothermal Field.

  15. HOUSING AND SOCIETY, 37(2), 2010 HOUSING AND SOCIETY, 37(2), 2010

    E-Print Network [OSTI]

    Massachusetts at Lowell, University of

    HOUSING AND SOCIETY, 37(2), 2010 87 HOUSING AND SOCIETY, 37(2), 2010 Housing and Society Journal of the Housing Education and Research Association Refer to manuscript submission guidelines on the HERA Web site www.housingeducators.org © 2010 Housing Education and Research Association All rights reserved

  16. Reference Material

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection RadiationRecord-SettingHead ofReference-Documents Sign In

  17. Acoustic microscope surface inspection system and method

    DOE Patents [OSTI]

    Khuri-Yakub, B.T.; Parent, P.; Reinholdtsen, P.A.

    1991-02-26T23:59:59.000Z

    An acoustic microscope surface inspection system and method are described in which pulses of high frequency electrical energy are applied to a transducer which forms and focuses acoustic energy onto a selected location on the surface of an object and receives energy from the location and generates electrical pulses. The phase of the high frequency electrical signal pulses are stepped with respect to the phase of a reference signal at said location. An output signal is generated which is indicative of the surface of said selected location. The object is scanned to provide output signals representative of the surface at a plurality of surface locations. 7 figures.

  18. Reference Documents

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection RadiationRecord-SettingHead ofReference-Documents Sign In About |

  19. 1.5 References Batzle, M. and Wang, Z., 1992, Seismic properties of pore fluids: Geophysics, Vol.

    E-Print Network [OSTI]

    relations for natural-gas-water mixtures: in Drilling and Production Practices, 1944, American Petroleum, Relative sound velocities of sea salts at 25 oC: Journal of Acoustical Society of America, Vol. 61, p. 1492

  20. Optimization Journals, Sites, Societies

    E-Print Network [OSTI]

    Optimization Online Links. Optimization related societies. Mathematical Optimization Society · SIAM · INFORMS. Optimization related journals. Mathematical ...

  1. Official Traditions Manual of the Saskatoon Engineering Students' Society Inc

    E-Print Network [OSTI]

    Saskatchewan, University of

    or representatives of the Agriculture/Bioresource Engineering Students' Society, Chemical Engineering StudentsOfficial Traditions Manual of the Saskatoon Engineering Students' Society Inc Article I Definitions hereafter refer to "the Saskatoon Engineering Students' Society"; (c) "SESS" and "S.E.S.S." shall

  2. Acoustic resonance spectroscopy intrinsic seals

    SciTech Connect (OSTI)

    Olinger, C.T.; Burr, T.; Vnuk, D.R.

    1994-08-01T23:59:59.000Z

    We have begun to quantify the ability of acoustic resonance spectroscopy (ARS) to detect the removal and replacement of the lid of a simulated special nuclear materials drum. Conceptually, the acoustic spectrum of a container establishcs a baseline fingerprint, which we refer to as an intrinsic seal, for the container. Simply removing and replacing the lid changes some of the resonant frequencies because it is impossible to exactly duplicate all of the stress patterns between the lid and container. Preliminary qualitative results suggested that the ARS intrinsic seal could discriminate between cases where a lid has or has not been removed. The present work is directed at quantifying the utility of the ARS intrinsic seal technique, including the technique`s sensitivity to ``nuisance`` effects, such as temperature swings, movement of the container, and placement of the transducers. These early quantitative tests support the potential of the ARS intrinsic seal application, but also reveal a possible sensitivity to nuisance effects that could limit environments or conditions under which the technique is effective.

  3. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1983-08-16T23:59:59.000Z

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

  4. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1983-08-16T23:59:59.000Z

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium. 2 figs.

  5. Acoustic well cleaner

    DOE Patents [OSTI]

    Maki, Jr., Voldi E. (11904 Bell Ave., Austin, TX 78759-2415); Sharma, Mukul M. (Dept. of Petroleum Engr. Univ. of Texas, Austin, TX 78712)

    1997-01-21T23:59:59.000Z

    A method and apparatus are disclosed for cleaning the wellbore and the near wellbore region. A sonde is provided which is adapted to be lowered into a borehole and which includes a plurality of acoustic transducers arranged around the sonde. Electrical power provided by a cable is converted to acoustic energy. The high intensity acoustic energy directed to the borehole wall and into the near wellbore region, redissolves or resuspends the material which is reducing the permeability of the formation and/or restricting flow in the wellbore.

  6. Compact acoustic refrigerator

    DOE Patents [OSTI]

    Bennett, G.A.

    1992-11-24T23:59:59.000Z

    A compact acoustic refrigeration system actively cools components, e.g., electrical circuits, in a borehole environment. An acoustic engine includes first thermodynamic elements for generating a standing acoustic wave in a selected medium. An acoustic refrigerator includes second thermodynamic elements located in the standing wave for generating a relatively cold temperature at a first end of the second thermodynamic elements and a relatively hot temperature at a second end of the second thermodynamic elements. A resonator volume cooperates with the first and second thermodynamic elements to support the standing wave. To accommodate the high heat fluxes required for heat transfer to/from the first and second thermodynamic elements, first heat pipes transfer heat from the heat load to the second thermodynamic elements and second heat pipes transfer heat from first and second thermodynamic elements to the borehole environment. 18 figs.

  7. Compact acoustic refrigerator

    DOE Patents [OSTI]

    Bennett, Gloria A. (Los Alamos, NM)

    1992-01-01T23:59:59.000Z

    A compact acoustic refrigeration system actively cools components, e.g., electrical circuits (22), in a borehole environment. An acoustic engine (12, 14) includes first thermodynamic elements (12) for generating a standing acoustic wave in a selected medium. An acoustic refrigerator (16, 26, 28) includes second thermodynamic elements (16) located in the standing wave for generating a relatively cold temperature at a first end of the second thermodynamic elements (16) and a relatively hot temperature at a second end of the second thermodynamic elements (16). A resonator volume (18) cooperates with the first and second thermodynamic elements (12, 16) to support the standing wave. To accommodate the high heat fluxes required for heat transfer to/from the first and second thermodynamic elements (12, 16), first heat pipes (24, 26) transfer heat from the heat load (22) to the second thermodynamic elements (16) and second heat pipes (28, 32) transfer heat from first and second thermodynamic elements (12, 16) to the borehole environment.

  8. Spacetime transformation acoustics

    E-Print Network [OSTI]

    C. García-Meca; S. Carloni; C. Barceló; G. Jannes; J. Sánchez-Dehesa; A. Martínez

    2014-07-08T23:59:59.000Z

    A recently proposed analogue transformation method has allowed the extension of transformation acoustics to general spacetime transformations. We analyze here in detail the differences between this new analogue transformation acoustics (ATA) method and the standard one (STA). We show explicitly that STA is not suitable for transformations that mix space and time. ATA takes as starting point the acoustic equation for the velocity potential, instead of that for the pressure as in STA. This velocity-potential equation by itself already allows for some transformations mixing space and time, but not all of them. We explicitly obtain the entire set of transformations that do not leave its form invariant. It is in these cases that ATA shows its true potential, allowing for building a transformation acoustics method that enables the full range of spacetime transformations. We provide an example of an important transformation which cannot be achieved with STA. Using this transformation, we design and simulate an acoustic frequency converter via the ATA approach. Furthermore, in those cases in which one can apply both the STA and ATA approaches, we study the different transformational properties of the corresponding physical quantities.

  9. References to Astrophysics Papers

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

    of the Royal Astronomical Society, 2014, Volume 445, Issue 4, p.4435-4442, Three Einstein rings: explicit solution and numerical simulation Alatalo, K.; Appleton, P. N.;...

  10. Acoustic emission intrusion detector

    DOE Patents [OSTI]

    Carver, Donald W. (Knoxville, TN); Whittaker, Jerry W. (Knoxville, TN)

    1980-01-01T23:59:59.000Z

    An intrusion detector is provided for detecting a forcible entry into a secured structure while minimizing false alarms. The detector uses a piezoelectric crystal transducer to sense acoustic emissions. The transducer output is amplified by a selectable gain amplifier to control the sensitivity. The rectified output of the amplifier is applied to a Schmitt trigger circuit having a preselected threshold level to provide amplitude discrimination. Timing circuitry is provided which is activated by successive pulses from the Schmitt trigger which lie within a selected time frame for frequency discrimination. Detected signals having proper amplitude and frequency trigger an alarm within the first complete cycle time of a detected acoustical disturbance signal.

  11. REFERENCES, REGULATIONS, & U. S. CODE General References

    E-Print Network [OSTI]

    Decommissioning Management Plan Sites," Federal Register 57 FR 6136. February 20, 1992. "Order Establishing Criteria and Schedule for Decommissioning the Bloomberg Site." Federal Register Agency for Toxic Substances. American Nuclear Society (ANS). 1994. Mobile In Situ Gamma-Ray Spectroscopy System. Transactions

  12. Energy & Society Toolkit Appendices Toolkit Appendices

    E-Print Network [OSTI]

    Kammen, Daniel M.

    ton of coal 1,000,000,000 GJ = 1 exajoule = 1 quad Reference energy measure: watt (W) 70 gigawatts (GWEnergy & Society Toolkit Appendices 1 Toolkit Appendices #12;Energy & Society Toolkit Appendices 2 2.3. Volume 4 2.4. Mass 4 2.5. Pressure 4 2.6. Temperature 4 2.7. Force 4 2.8. Energy 4 2.9. Power 5

  13. Method and apparatus for detecting internal structures of bulk objects using acoustic imaging

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID); Telschow, Kenneth L. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    Apparatus for producing an acoustic image of an object according to the present invention may comprise an excitation source for vibrating the object to produce at least one acoustic wave therein. The acoustic wave results in the formation of at least one surface displacement on the surface of the object. A light source produces an optical object wavefront and an optical reference wavefront and directs the optical object wavefront toward the surface of the object to produce a modulated optical object wavefront. A modulator operatively associated with the optical reference wavefront modulates the optical reference wavefront in synchronization with the acoustic wave to produce a modulated optical reference wavefront. A sensing medium positioned to receive the modulated optical object wavefront and the modulated optical reference wavefront combines the modulated optical object and reference wavefronts to produce an image related to the surface displacement on the surface of the object. A detector detects the image related to the surface displacement produced by the sensing medium. A processing system operatively associated with the detector constructs an acoustic image of interior features of the object based on the phase and amplitude of the surface displacement on the surface of the object.

  14. Drift and ion acoustic wave driven vortices with superthermal electrons

    SciTech Connect (OSTI)

    Ali Shan, S. [Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad (Pakistan); National Centre For Physics (NCP), Shahdra Valley Road, QAU Campus, 44000 Islamabad (Pakistan); Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad (Pakistan); Haque, Q. [Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad (Pakistan); National Centre For Physics (NCP), Shahdra Valley Road, QAU Campus, 44000 Islamabad (Pakistan)

    2012-08-15T23:59:59.000Z

    Linear and nonlinear analysis of coupled drift and acoustic mode is presented in an inhomogeneous electron-ion plasma with {kappa}-distributed electrons. A linear dispersion relation is found which shows that the phase speed of both the drift wave and the ion acoustic wave decreases in the presence of superthermal electrons. Several limiting cases are also discussed. In the nonlinear regime, stationary solutions in the form of dipolar and monopolar vortices are obtained. It is shown that the condition for the boundedness of the solution implies that the speed of drift wave driven vortices reduces with increase in superthermality effect. Ignoring density inhomogeniety, it is investigated that the lower and upper limits on the speed of the ion acoustic driven vortices spread with the inclusion of high energy electrons. The importance of results with reference to space plasmas is also pointed out.

  15. Acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1988-01-01T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth3 s magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation . The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores.

  16. A versatile scanning acoustic platform

    E-Print Network [OSTI]

    N G Parker; P V Nelson; M J W Povey

    2010-02-01T23:59:59.000Z

    We present a versatile and highly configurable scanning acoustic platform. This platform, comprising of a high frequency transducer, bespoke positioning system and temperature-regulated sample unit, enables the acoustic probing of materials over a wide range of length scales and with minimal thermal aberration. In its bare form the platform acts as a reflection-mode acoustic microscope, while optical capabilities are readily incorporated to extend its abilities to the acousto-optic domain. Here we illustrate the capabilities of the platform through its incarnation as an acoustic microscope. Operating at 55 MHz we demonstrate acoustic imaging with a lateral resolution of 25 microns. We outline its construction, calibration and capabilities as an acoustic microscope, and discuss its wider applications.

  17. Truck acoustic data analyzer system

    DOE Patents [OSTI]

    Haynes, Howard D.; Akerman, Alfred; Ayers, Curtis W.

    2006-07-04T23:59:59.000Z

    A passive vehicle acoustic data analyzer system having at least one microphone disposed in the acoustic field of a moving vehicle and a computer in electronic communication the microphone(s). The computer detects and measures the frequency shift in the acoustic signature emitted by the vehicle as it approaches and passes the microphone(s). The acoustic signature of a truck driving by a microphone can provide enough information to estimate the truck speed in miles-per-hour (mph), engine speed in rotations-per-minute (RPM), turbocharger speed in RPM, and vehicle weight.

  18. Acoustic Character Of Hydraulic Fractures In Granite

    E-Print Network [OSTI]

    Paillet, Frederick I.

    1983-01-01T23:59:59.000Z

    Hydraulic fractures in homogeneous granitic rocks were logged with conventional acoustic-transit-time, acoustic-waveform, and acoustic-televiewer logging systems. Fractured intervals ranged in depth from 45 to 570m. and ...

  19. Three-Dimensional Nonlinear Acoustical Holography

    E-Print Network [OSTI]

    Niu, Yaying

    2013-05-06T23:59:59.000Z

    Nearfield Acoustical Holography (NAH) is an acoustic field visualization technique that can be used to reconstruct three-dimensional (3-D) acoustic fields by projecting two-dimensional (2-D) data measured on a hologram surface. However, linear NAH...

  20. Acoustic cavitation and its chemical consequences

    E-Print Network [OSTI]

    Suslick, Kenneth S.

    Acoustic cavitation and its chemical consequences By Kenneth S. Suslick, Yuri Didenko, Ming M. Fang Acoustic cavitation is responsible for both sonochemistry and sonoluminescence. Bubble collapse in liquids, sonochemistry and sonoluminescence derive principally from acoustic cavitation: the formation, growth

  1. acoustics: Topics by E-print Network

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

    by the Leningrad unknown authors 4 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  2. High frequency reference electrode

    DOE Patents [OSTI]

    Kronberg, J.W.

    1994-05-31T23:59:59.000Z

    A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes. 4 figs.

  3. Optical voltage reference

    DOE Patents [OSTI]

    Rankin, R.; Kotter, D.

    1994-04-26T23:59:59.000Z

    An optical voltage reference for providing an alternative to a battery source is described. The optical reference apparatus provides a temperature stable, high precision, isolated voltage reference through the use of optical isolation techniques to eliminate current and impedance coupling errors. Pulse rate frequency modulation is employed to eliminate errors in the optical transmission link while phase-lock feedback is employed to stabilize the frequency to voltage transfer function. 2 figures.

  4. The electron geodesic acoustic mode

    SciTech Connect (OSTI)

    Chakrabarti, N. [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700 064 (India); Guzdar, P. N. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States); Kaw, P. K. [Institute for Plasma Research Bhat, Gandhinagar 382428 (India)

    2012-09-15T23:59:59.000Z

    In this report, a novel new mode, named the electron geodesic acoustic mode, is presented. This mode can occur in toroidal plasmas like the conventional geodesic acoustic mode (GAM). The frequency of this new mode is much larger than that of the conventional GAM by a factor equal to the square root of the ion to electron mass ratio.

  5. Acoustic metafluids Andrew N. Norrisa

    E-Print Network [OSTI]

    Norris, Andrew

    of material that surrounds the object to be rendered acoustically "invisible." Stealth can also be achieved of material necessary to achieve stealth. We define these materials as acoustic metafluids, which as we are materials with anisotropic inertia and the elastic properties of what are known as pentamode materials

  6. Acoustic imaging microscope

    DOE Patents [OSTI]

    Deason, Vance A.; Telschow, Kenneth L.

    2006-10-17T23:59:59.000Z

    An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.

  7. Application Protocol Reference Architecture Application Protocol Reference Architecture

    E-Print Network [OSTI]

    van Sinderen, Marten

    Application Protocol Reference Architecture 165 Chapter 7 Application Protocol Reference Architecture This chapter proposes an alternative reference architecture for application protocols. The proposed reference architecture consists of the set of possible architectures for application protocols

  8. Opto-acoustic thrombolysis

    DOE Patents [OSTI]

    Celliers, Peter (Berkeley, CA); Da Silva, Luiz (Danville, CA); Glinsky, Michael (Livermore, CA); London, Richard (Orinda, CA); Maitland, Duncan (Livermore, CA); Matthews, Dennis (Moss Beach, CA); Fitch, Pat (Livermore, CA)

    2000-01-01T23:59:59.000Z

    This invention is a catheter-based device for generating an ultrasound excitation in biological tissue. Pulsed laser light is guided through an optical fiber to provide the energy for producing the acoustic vibrations. The optical energy is deposited in a water-based absorbing fluid, e.g. saline, thrombolytic agent, blood or thrombus, and generates an acoustic impulse in the fluid through thermoelastic and/or thermodynamic mechanisms. By pulsing the laser at a repetition rate (which may vary from 10 Hz to 100 kHz) an ultrasonic radiation field can be established locally in the medium. This method of producing ultrasonic vibrations can be used in vivo for the treatment of stroke-related conditions in humans, particularly for dissolving thrombus or treating vasospasm. The catheter can also incorporate thrombolytic drug treatments as an adjunct therapy and it can be operated in conjunction with ultrasonic detection equipment for imaging and feedback control and with optical sensors for characterization of thrombus type and consistency.

  9. Acoustic sensors using microstructures tunable with energy other than acoustic energy

    DOE Patents [OSTI]

    Datskos, Panagiotis G.

    2003-11-25T23:59:59.000Z

    A sensor for detecting acoustic energy includes a microstructure tuned to a predetermined acoustic frequency and a device for detecting movement of the microstructure. A display device is operatively linked to the movement detecting device. When acoustic energy strikes the acoustic sensor, acoustic energy having a predetermined frequency moves the microstructure, where the movement is detected by the movement detecting device.

  10. Electromagnetic acoustic transducer

    DOE Patents [OSTI]

    Alers, George A. (Albuquerque, NM); Burns, Jr., Leigh R. (Albuquerque, NM); MacLauchlan, Daniel T. (Sandia Park, NM)

    1988-01-01T23:59:59.000Z

    A noncontact ultrasonic transducer for studying the acoustic properties of a metal workpiece includes a generally planar magnetizing coil positioned above the surface of the workpiece, and a generally planar eddy current coil between the magnetizing coil and the workpiece. When a large current is passed through the magnetizing coil, a large magnetic field is applied to the near-surface regions of the workpiece. The eddy current coil can then be operated as a transmitter by passing an alternating current therethrough to excite ultrasonic waves in the surface of the workpiece, or operated as a passive receiver to sense ultrasonic waves in the surface by measuring the output signal. The geometries of the two coils can be varied widely to be effective for different types of ultrasonic waves. The coils are preferably packaged in a housing which does not interfere with their operation, but protects them from a variety of adverse environmental conditions.

  11. Value of Information References

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Morency, Christina

    This file contains a list of relevant references on value of information (VOI) in RIS format. VOI provides a quantitative analysis to evaluate the outcome of the combined technologies (seismology, hydrology, geodesy) used to monitor Brady's Geothermal Field.

  12. Value of Information References

    SciTech Connect (OSTI)

    Morency, Christina

    2014-12-12T23:59:59.000Z

    This file contains a list of relevant references on value of information (VOI) in RIS format. VOI provides a quantitative analysis to evaluate the outcome of the combined technologies (seismology, hydrology, geodesy) used to monitor Brady's Geothermal Field.

  13. Precision displacement reference system

    DOE Patents [OSTI]

    Bieg, Lothar F. (Albuquerque, NM); Dubois, Robert R. (Albuquerque, NM); Strother, Jerry D. (Edgewood, NM)

    2000-02-22T23:59:59.000Z

    A precision displacement reference system is described, which enables real time accountability over the applied displacement feedback system to precision machine tools, positioning mechanisms, motion devices, and related operations. As independent measurements of tool location is taken by a displacement feedback system, a rotating reference disk compares feedback counts with performed motion. These measurements are compared to characterize and analyze real time mechanical and control performance during operation.

  14. Membrane reference electrode

    DOE Patents [OSTI]

    Redey, L.; Bloom, I.D.

    1988-01-21T23:59:59.000Z

    A reference electrode utilizes a small thin, flat membrane of a highly conductive glass placed on a small diameter insulator tube having a reference material inside in contact with an internal voltage lead. When the sensor is placed in a non-aqueous ionic electrolytic solution, the concentration difference across the glass membrane generates a low voltage signal in precise relationship to the concentration of the species to be measured, with high spatial resolution. 2 figs.

  15. Acoustically Enhanced Boiling Heat Transfer

    E-Print Network [OSTI]

    Z. W. Douglas; M. K. Smith; A. Glezer

    2008-01-07T23:59:59.000Z

    An acoustic field is used to increase the critical heat flux (CHF) of a flat-boiling-heat-transfer surface. The increase is a result of the acoustic effects on the vapor bubbles. Experiments are performed to explore the effects of an acoustic field on vapor bubbles in the vicinity of a rigid-heated wall. Work includes the construction of a novel heater used to produce a single vapor bubble of a prescribed size and at a prescribed location on a flatboiling surface for better study of an individual vapor bubble's reaction to the acoustic field. Work also includes application of the results from the single-bubble heater to a calibrated-copper heater used for quantifying the improvements in CHF.

  16. Acoustic Characterization of Mesoscale Objects

    SciTech Connect (OSTI)

    Chinn, D; Huber, R; Chambers, D; Cole, G; Balogun, O; Spicer, J; Murray, T

    2007-03-13T23:59:59.000Z

    This report describes the science and engineering performed to provide state-of-the-art acoustic capabilities for nondestructively characterizing mesoscale (millimeter-sized) objects--allowing micrometer resolution over the objects entire volume. Materials and structures used in mesoscale objects necessitate the use of (1) GHz acoustic frequencies and (2) non-contacting laser generation and detection of acoustic waves. This effort demonstrated that acoustic methods at gigahertz frequencies have the necessary penetration depth and spatial resolution to effectively detect density discontinuities, gaps, and delaminations. A prototype laser-based ultrasonic system was designed and built. The system uses a micro-chip laser for excitation of broadband ultrasonic waves with frequency components reaching 1.0 GHz, and a path-stabilized Michelson interferometer for detection. The proof-of-concept for mesoscale characterization is demonstrated by imaging a micro-fabricated etched pattern in a 70 {micro}m thick silicon wafer.

  17. Acoustic techniques in nuclear safeguards

    SciTech Connect (OSTI)

    Olinger, C.T.; Sinha, D.N.

    1995-07-01T23:59:59.000Z

    Acoustic techniques can be employed to address many questions relevant to current nuclear technology needs. These include establishing and monitoring intrinsic tags and seals, locating holdup in areas where conventional radiation-based measurements have limited capability, process monitoring, monitoring containers for corrosion or changes in pressure, and facility design verification. These acoustics applications are in their infancy with respect to safeguards and nuclear material management, but proof-of-principle has been demonstrated in many of the areas listed.

  18. Reflective echo tomographic imaging using acoustic beams

    DOE Patents [OSTI]

    Kisner, Roger; Santos-Villalobos, Hector J

    2014-11-25T23:59:59.000Z

    An inspection system includes a plurality of acoustic beamformers, where each of the plurality of acoustic beamformers including a plurality of acoustic transmitter elements. The system also includes at least one controller configured for causing each of the plurality of acoustic beamformers to generate an acoustic beam directed to a point in a volume of interest during a first time. Based on a reflected wave intensity detected at a plurality of acoustic receiver elements, an image of the volume of interest can be generated.

  19. Multifunctional reference electrode

    DOE Patents [OSTI]

    Redey, L.; Vissers, D.R.

    1981-12-30T23:59:59.000Z

    A multifunctional, low mass reference electrode of a nickel tube, thermocouple means inside the nickel tube electrically insulated therefrom for measuring the temperature thereof, a housing surrounding the nickel tube, an electrolyte having a fixed sulfide ion activity between the housing and the outer surface of the nickel tube forming the nickel/nickel sulfide/sulfide half-cell are described. An ion diffusion barrier is associated with the housing in contact with the electrolyte. Also disclosed is a cell using the reference electrode to measure characteristics of a working electrode.

  20. Aluminum reference electrode

    DOE Patents [OSTI]

    Sadoway, D.R.

    1988-08-16T23:59:59.000Z

    A stable reference electrode is described for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na[sub 3]AlF[sub 6], wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution. 1 fig.

  1. Aluminum reference electrode

    DOE Patents [OSTI]

    Sadoway, Donald R. (Belmont, MA)

    1988-01-01T23:59:59.000Z

    A stable reference electrode for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na.sub.3 AlF.sub.6, wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution.

  2. Multifunctional reference electrode

    DOE Patents [OSTI]

    Redey, Laszlo (Lisle, IL); Vissers, Donald R. (Naperville, IL)

    1983-01-01T23:59:59.000Z

    A multifunctional, low mass reference electrode of a nickel tube, thermocouple means inside the nickel tube electrically insulated therefrom for measuring the temperature thereof, a housing surrounding the nickel tube, an electrolyte having a fixed sulfide ion activity between the housing and the outer surface of the nickel tube forming the nickel/nickel sulfide/sulfide half-cell. An ion diffusion barrier is associated with the housing in contact with the electrolyte. Also disclosed is a cell using the reference electrode to measure characteristics of a working electrode.

  3. Evaluation of the acoustical performance and behaviour of a hybrid truck in urban use

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    engine truck, hybrid truck under hybrid use, hybrid truck under electrical use). Noise emission laws of the noise emission of the hybrid and the reference engine trucks over a wide range of real drivingEvaluation of the acoustical performance and behaviour of a hybrid truck in urban use M.-A. Pallas

  4. "Busy Terminal Problem" and Implications for MAC Protocols in Underwater Acoustic Networks

    E-Print Network [OSTI]

    Zhou, Shengli

    "Busy Terminal Problem" and Implications for MAC Protocols in Underwater Acoustic Networks Yibo Zhu that the exposed terminal problem can be easily handled and system performance is improved. However, in practical, the modem cannot transmit packets when it is busy. This problem is referred to as the "busy terminal problem

  5. Grant Reference Lead / Sole

    E-Print Network [OSTI]

    Rank Overall Score Grant Reference Lead / Sole Grant Grant Holder Research Organisation Project of Birmingham Controls on Soil Carbon Export revealed by Novel Tracers on multiple timescales (SCENT) Standard Grant DEC12 8 8 NE/K011871/1 N Melanie Leng NERC British Geological Survey A 500,000-year environmental

  6. HAZARDOUS WASTE MANAGEMENT REFERENCE

    E-Print Network [OSTI]

    Faraon, Andrei

    Principal Investigators 7 Laboratory Personnel 8 EH&S Personnel 8 HAZARDOUS WASTE ACCUMULATION AREAS 9 Satellite Accumulation Area 9 Waste Accumulation Facility 10 HAZARDOUS WASTE CONTAINER MANAGEMENT LabelingHAZARDOUS WASTE MANAGEMENT REFERENCE GUIDE Prepared by Environment, Health and Safety Office

  7. CONCRETE PAVEMENT Reference Manual

    E-Print Network [OSTI]

    CONCRETE PAVEMENT Reference Manual Prepared for Federal Highway Administration Office of Pavement by National Concrete Pavement Technology Center at Iowa State University 2711 South Loop Drive, Suite 4700 No. 3. Recipient's Catalog No. 4. Title and Subtitle 5. Report Date February 2008 Concrete Pavement

  8. MSL ENTERANCE REFERENCE AREA

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    MSL ENTERANCE LOBBY ELEV STAIRS SSL-019 REFERENCE AREA SSL-021 GROUP STUDY SSL-018 STUDY ROOM SSL-029 SSL-020 COPY ROOM SSL-022 GROUP STUDY SSL-026 STACKS SSL-023 GROUP STUDY SSL-024 GROUP STUDY SSL TBL-014 TBL-014A STAIRS SSL-007 GIS/ WORKROOM SSL-011 SSL-008 SSL-009 SSL-010 SSL-014 SSL-017 STAIRS

  9. Cisco Reference Configurations for

    E-Print Network [OSTI]

    Chaudhuri, Surajit

    ............................................................................................. 10 EMC VNX5500 Storage Layout.0 with EMC VNX5500 Series Storage Systems White Paper November 2012 © 2012 Cisco and/or its affiliates. AllCisco Reference Configurations for Microsoft SQL Server 2012 Fast Track Data Warehouse 4.0 with EMC

  10. Acoustic signal estimation using multiple blind observations

    E-Print Network [OSTI]

    Lee, Joonsung

    2006-01-01T23:59:59.000Z

    This thesis proposes two algorithms for recovering an acoustic signal from multiple blind measurements made by sensors (microphones) over an acoustic channel. Unlike other algorithms that use a posteriori probabilistic ...

  11. Acoustic data transmission through a drill string

    DOE Patents [OSTI]

    Drumheller, D.S.

    1988-04-21T23:59:59.000Z

    Acoustical signals are transmitted through a drill string by canceling upward moving acoustical noise and by preconditioning the data in recognition of the comb filter impedance characteristics of the drill string. 5 figs.

  12. Acoustical Communications for Wireless Downhole Telemetry Systems

    E-Print Network [OSTI]

    Farraj, Abdallah

    2012-08-22T23:59:59.000Z

    This dissertation investigates the use of advanced acoustical communication techniques for wireless downhole telemetry systems. Using acoustic waves for downhole telemetry systems is investigated in order to replace the wired communication systems...

  13. Particle analysis in an acoustic cytometer

    DOE Patents [OSTI]

    Kaduchak, Gregory; Ward, Michael D

    2012-09-18T23:59:59.000Z

    The present invention is a method and apparatus for acoustically manipulating one or more particles. Acoustically manipulated particles may be separated by size. The particles may be flowed in a flow stream and acoustic radiation pressure, which may be radial, may be applied to the flow stream. This application of acoustic radiation pressure may separate the particles. In one embodiment, the particles may be separated by size, and as a further example, the larger particles may be transported to a central axis.

  14. Prototype acoustic resonance spectroscopy monitor

    SciTech Connect (OSTI)

    Sinha, D.N.; Olinger, C.T.

    1996-03-01T23:59:59.000Z

    This report reports on work performed for the International Atomic Energy Agency (IAEA) through the Program Office for Technical Assistance (POTAS). In this work, we investigate possible applications of nondestructive acoustics measurements to facilitate IAEA safeguards at bulk processing facilities. Two different acoustic techniques for verifying the internal structure of a processing tank were investigated. During this effort we also examined two acoustic techniques for assessing the fill level within a processing tank. The fill-level measurements could be made highly portable and have an added safeguards advantage that they can also detect stratification of fill material. This later application may be particularly useful in confirming the absence of stratification in plutonium processing tanks before accountability samples are withdrawn.

  15. OSH technical reference manual

    SciTech Connect (OSTI)

    Not Available

    1993-11-01T23:59:59.000Z

    In an evaluation of the Department of Energy (DOE) Occupational Safety and Health programs for government-owned contractor-operated (GOCO) activities, the Department of Labor`s Occupational Safety and Health Administration (OSHA) recommended a technical information exchange program. The intent was to share written safety and health programs, plans, training manuals, and materials within the entire DOE community. The OSH Technical Reference (OTR) helps support the secretary`s response to the OSHA finding by providing a one-stop resource and referral for technical information that relates to safe operations and practice. It also serves as a technical information exchange tool to reference DOE-wide materials pertinent to specific safety topics and, with some modification, as a training aid. The OTR bridges the gap between general safety documents and very specific requirements documents. It is tailored to the DOE community and incorporates DOE field experience.

  16. Multi-reflective acoustic wave device

    DOE Patents [OSTI]

    Andle, Jeffrey C.

    2006-02-21T23:59:59.000Z

    An acoustic wave device, which utilizes multiple localized reflections of acoustic wave for achieving an infinite impulse response while maintaining high tolerance for dampening effects, is disclosed. The device utilized a plurality of electromechanically significant electrodes disposed on most of the active surface. A plurality of sensors utilizing the disclosed acoustic wave mode device are also described.

  17. Gas sensing with acoustic devices

    SciTech Connect (OSTI)

    Martin, S.J.; Frye, G.C. [Sandia National Labs., Albuquerque, NM (United States); Spates, J.J. [Ktech Corp., Albuquerque, NM (United States); Butler, M.A. [Sandia National Labs., Albuquerque, NM (United States)

    1996-12-31T23:59:59.000Z

    A survey is made of acoustic devices that are suitable as gas and vapor sensors. This survey focuses on attributes such as operating frequency, mass sensitivity, quality factor (Q), and their ability to be fabricated on a semiconductor substrate to allow integration with electronic circuitry. The treatment of the device surface with chemically-sensitive films to detect species of interest is discussed. Strategies for improving discrimination are described, including sensor arrays and species concentration and separation schemes. The advantages and disadvantages of integrating sensors with microelectronics are considered, along with the effect on sensitivity of scaling acoustic gas sensors to smaller size.

  18. Reference Undulator Measurement Results

    SciTech Connect (OSTI)

    Wolf, Zachary; Levashov, Yurii; /SLAC; ,

    2011-08-18T23:59:59.000Z

    The LCLS reference undulator has been measured 22 times during the course of undulator tuning. These measurements provide estimates of various statistical errors. This note gives a summary of the reference undulator measurements and it provides estimates of the undulator tuning errors. We measured the reference undulator many times during the tuning of the LCLS undulators. These data sets give estimates of the random errors in the tuned undulators. The measured trajectories in the reference undulator are stable and straight to within {+-}2 {micro}m. Changes in the phase errors are less than {+-}2 deg between data sets. The phase advance in the cell varies by less than {+-}2 deg between data sets. The rms variation between data sets of the first integral of B{sub x} is 9.98 {micro}Tm, and the rms variation of the second integral of B{sub x} is 17.4 {micro}Tm{sup 2}. The rms variation of the first integral of B{sub y} is 6.65 {micro}Tm, and the rms variation of the second integral of B{sub y} is 12.3 {micro}Tm{sup 2}. The rms variation of the x-position of the fiducialized beam axis is 35 {micro}m in the final production run This corresponds to an rms uncertainty in the K value of {Delta}K/K = 2.7 x 10{sup -5}. The rms variation of the y-position of the fiducialized beam axis is 4 {micro}m in the final production run.

  19. STEP Intern Reference Check Sheet

    Broader source: Energy.gov [DOE]

    STEP Intern Reference Check Sheet, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  20. Culture against Society

    E-Print Network [OSTI]

    Hanson, F. Allan

    2005-07-01T23:59:59.000Z

    Culture and Society CULTURE AGAINST SOCIETY F. Allan Hanson Culture has turned sour. Originally a constructive force, it has now become disruptive to contemporary society. Such a claim may sound heretical, because in social scientific circles.... "Anthropology and Multiculturalism: What is Anthropology That Multiculturalists Should be Mindful of It?" Cultural Anthropology, 8:411-429. F. Allan Hanson is a professor of anthropology at the University of Kansas. His primary interests are social theory...

  1. LLNL`s acoustic spectrometer

    SciTech Connect (OSTI)

    Baker, J.

    1997-03-17T23:59:59.000Z

    This paper describes the development of a frequency sensitive acoustic transducer that operates in the 10 Hz to 10 kHz regime. This device uses modem silicon microfabrication techniques to form mechanical tines that resonate at specified frequencies. This high-sensitivity device is intended for low-power battery powered applications.

  2. Constitution of the Interactive Arts and Technology Student Union of the Simon Fraser Student Society

    E-Print Network [OSTI]

    Constitution of the Interactive Arts and Technology Student Union of the Simon Fraser Student Society May 12, 2010 Article 1 ­ Name The name of the Union shall be the "Interactive Arts and Technology of Interactive Arts and Technology, the University, the Simon Fraser Student Society (hereinafter referred

  3. Optomechanical reference accelerometer

    E-Print Network [OSTI]

    Gerberding, Oliver; Melcher, John; Pratt, Jon; Taylor, Jacob

    2015-01-01T23:59:59.000Z

    We present an optomechanical accelerometer with high dynamic range, high bandwidth and read-out noise levels below 8 {\\mu}g/$\\sqrt{\\mathrm{Hz}}$. The straightforward assembly and low cost of our device make it a prime candidate for on-site reference calibrations and autonomous navigation. We present experimental data taken with a vacuum sealed, portable prototype and deduce the achieved bias stability and scale factor accuracy. Additionally, we present a comprehensive model of the device physics that we use to analyze the fundamental noise sources and accuracy limitations of such devices.

  4. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469Appendix E4 Reference

  5. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469Appendix E4 Reference4

  6. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469Appendix E4 Reference46

  7. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469Appendix E44 Reference

  8. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor2 Reference

  9. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor2 Reference4

  10. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor2 Reference46

  11. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor2 Reference464

  12. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor24 Reference

  13. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor24 Reference6

  14. Appendix A: Reference case

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal Stocks at CommercialDecade Year-0 Year-1 Year-2CubiccurrentFor24 Reference68

  15. REFERENCES Baines, W. D.

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronicCurvesSpeedingScientificof ScientificQ LA-UR- " "REFERENCES

  16. References to Astrophysics Papers

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Scienceand Requirements Recently Approved JustificationBio-Inspired SolarReferences to

  17. Nonlinear dust acoustic waves and shocks

    SciTech Connect (OSTI)

    Merlino, R. L.; Heinrich, J. R.; Hyun, S.-H.; Meyer, J. K. [Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)

    2012-05-15T23:59:59.000Z

    We describe experiments on (1) nonlinear dust acoustic waves and (2) dust acoustic shocks performed in a direct current (DC) glow discharge dusty plasma. First, we describe experiments showing nonlinear dust acoustic waves characterized by waveforms of the dust density that are typically sharper in the wave crests and flatter in the wave troughs (compared to sinusoidal waves), indicating the development of wave harmonics. We discuss this behavior in terms of a second-order fluid theory for dust acoustic waves. Second, experimental observations of the propagation and steepening of large-amplitude dust acoustic waves into dust acoustic shock waves are presented. The observed shock wave evolution is compared with numerical calculations based on the Riemann solution of the fully nonlinear fluid equations for dust acoustic waves.

  18. Method and apparatus for generating acoustic energy

    DOE Patents [OSTI]

    Guerrero, Hector N. (Evans, GA)

    2002-01-01T23:59:59.000Z

    A method and apparatus for generating and emitting amplified coherent acoustic energy. A cylindrical transducer is mounted within a housing, the transducer having an acoustically open end and an acoustically closed end. The interior of the transducer is filled with an active medium which may include scattering nuclei. Excitation of the transducer produces radially directed acoustic energy in the active medium, which is converted by the dimensions of the transducer, the acoustically closed end thereof, and the scattering nuclei, to amplified coherent acoustic energy directed longitudinally within the transducer. The energy is emitted through the acoustically open end of the transducer. The emitted energy can be used for, among other things, effecting a chemical reaction or removing scale from the interior walls of containment vessels.

  19. Antares Reference Telescope System

    SciTech Connect (OSTI)

    Viswanathan, V.K.; Kaprelian, E.; Swann, T.; Parker, J.; Wolfe, P.; Woodfin, G.; Knight, D.

    1983-01-01T23:59:59.000Z

    Antares is a 24-beam, 40-TW carbon-dioxide laser-fusion system currently nearing completion at the Los Alamos National Laboratory. The 24 beams will be focused onto a tiny target (typically 300 to 1000 ..mu..m in diameter) located approximately at the center of a 7.3-m-diameter by 9.3-m-long vacuum (10/sup -6/ torr) chamber. The design goal is to position the targets to within 10 ..mu..m of a selected nominal position, which may be anywhere within a fixed spherical region 1 cm in diameter. The Antares Reference Telescope System is intended to help achieve this goal for alignment and viewing of the various targets used in the laser system. The Antares Reference Telescope System consists of two similar electro-optical systems positioned in a near orthogonal manner in the target chamber area of the laser. Each of these consists of four subsystems: (1) a fixed 9X optical imaging subsystem which produces an image of the target at the vidicon; (2) a reticle projection subsystem which superimposes an image of the reticle pattern at the vidicon; (3) an adjustable front-lighting subsystem which illuminates the target; and (4) an adjustable back-lighting subsystem which also can be used to illuminate the target. The various optical, mechanical, and vidicon design considerations and trade-offs are discussed. The final system chosen (which is being built) and its current status are described in detail.

  20. Coal data: A reference

    SciTech Connect (OSTI)

    Not Available

    1995-02-01T23:59:59.000Z

    This report, Coal Data: A Reference, summarizes basic information on the mining and use of coal, an important source of energy in the US. This report is written for a general audience. The goal is to cover basic material and strike a reasonable compromise between overly generalized statements and detailed analyses. The section ``Supplemental Figures and Tables`` contains statistics, graphs, maps, and other illustrations that show trends, patterns, geographic locations, and similar coal-related information. The section ``Coal Terminology and Related Information`` provides additional information about terms mentioned in the text and introduces some new terms. The last edition of Coal Data: A Reference was published in 1991. The present edition contains updated data as well as expanded reviews and additional information. Added to the text are discussions of coal quality, coal prices, unions, and strikes. The appendix has been expanded to provide statistics on a variety of additional topics, such as: trends in coal production and royalties from Federal and Indian coal leases, hours worked and earnings for coal mine employment, railroad coal shipments and revenues, waterborne coal traffic, coal export loading terminals, utility coal combustion byproducts, and trace elements in coal. The information in this report has been gleaned mainly from the sources in the bibliography. The reader interested in going beyond the scope of this report should consult these sources. The statistics are largely from reports published by the Energy Information Administration.

  1. CH 6 REFERENCES.DOC 6-1 6 References

    E-Print Network [OSTI]

    REFERENCES.DOC Allan, S., A. R. Buckley, and J. E. Meacham. 2001. Atlas of Oregon. Second Edition. William J

  2. Nuclear Science References Database

    E-Print Network [OSTI]

    B. Pritychenko; E. B?ták; B. Singh; J. Totans

    2014-07-08T23:59:59.000Z

    The Nuclear Science References (NSR) database together with its associated Web interface, is the world's only comprehensive source of easily accessible low- and intermediate-energy nuclear physics bibliographic information for more than 210,000 articles since the beginning of nuclear science. The weekly-updated NSR database provides essential support for nuclear data evaluation, compilation and research activities. The principles of the database and Web application development and maintenance are described. Examples of nuclear structure, reaction and decay applications are specifically included. The complete NSR database is freely available at the websites of the National Nuclear Data Center http://www.nndc.bnl.gov/nsr and the International Atomic Energy Agency http://www-nds.iaea.org/nsr.

  3. Long life reference electrode

    DOE Patents [OSTI]

    Yonco, R.M.; Nagy, Z.

    1987-07-30T23:59:59.000Z

    An external, reference electrode is provided for long term use with a high temperature, high pressure system. The electrode is arranged in a vertical, electrically insulative tube with an upper portion serving as an electrolyte reservoir and a lower portion in electrolytic communication with the system to be monitored. The lower end portion includes a flow restriction such as a porous plug to limit the electrolyte release into the system. A piston equalized to the system pressure is fitted into the upper portion of the tube to impart a small incremental pressure to the electrolyte. The piston is selected of suitable size and weight to cause only a slight flow of electrolyte through the porous plug into the high pressure system. This prevents contamination of the electrolyte but is of such small flow rate that operating intervals of a month or more can be achieved. 2 figs.

  4. Landscapes as references for design

    E-Print Network [OSTI]

    Batchelor, James P

    1981-01-01T23:59:59.000Z

    This is a study of the ways in which the forms in landscapes - natural terrain adapted and inhabited - can serve as references in architectural design. As references for design, landscapes provide a richness of responses ...

  5. Budget Reconciliation Procedures Reference Guide

    E-Print Network [OSTI]

    Shull, Kenneth R.

    Budget Reconciliation Procedures Reference Guide eDev Course Number FMS723 Subject Area Budget Northwestern University #12;Reference Guide Budget Reconciliation Table of Contents Helpful Contacts....................................................................................... 14 723QuickRefGuidev1.4 2 of 14 #12;Reference Guide Budget Reconciliation Helpful Contacts Below

  6. Acoustic techniques for localizing holdup

    SciTech Connect (OSTI)

    Vnuk, D.

    1996-09-01T23:59:59.000Z

    Material that does not come out of a process as product or waste is called holdup. When this is fissile material, its location and quantity must be determined to improve safeguards and security as well as safety at the facility. The most common method for detecting and measuring holdup is with radiation based techniques. When using them, one must consider equipment geometry, geometry of holdup, and effects of background radiation when converting the radiation measurement into a fissile material quantity. We are developing complementary techniques that use tiny acoustic transducers, which are unaffected by background radiation, to improve holdup measurements by aiding in determining the above conversion factors for holdup measurements. Thus far, we have applied three techniques, Acoustic Interferometry, Pulse Echo, and bending Wave Propagation, of which the latter appears most effective. This paper will describe each of these techniques and show how they may ultimately reduce costs and personnel radiation exposure while increasing confidence I and accuracy of holdup measurements.

  7. Cylindrical acoustic levitator/concentrator

    DOE Patents [OSTI]

    Kaduchak, Gregory (Los Alamos, NM); Sinha, Dipen N. (Los Alamos, NM)

    2002-01-01T23:59:59.000Z

    A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that of the interior cavity of the cylinder. When the resonance frequency of the interior cylindrical cavity is matched to the breathing mode resonance of the cylindrical piezoelectric transducer, the acoustic efficiency for establishing a standing wave pattern in the cavity is high. The cylinder does not require accurate alignment of a resonant cavity. Water droplets having diameters greater than 1 mm have been levitated against the force of gravity using; less than 1 W of input electrical power. Concentration of aerosol particles in air is also demonstrated.

  8. Acoustic horizons in nuclear fluids

    E-Print Network [OSTI]

    Niladri Sarkar; Abhik Basu; Jayanta K. Bhattacharjee; Arnab K. Ray

    2014-04-13T23:59:59.000Z

    We consider a hydrodynamic description of the spherically symmetric outward flow of nuclear matter, accommodating dispersion in it as a very weak effect. About the resulting stationary conditions in the flow, we apply an Eulerian scheme to derive a fully nonlinear equation of a time-dependent radial perturbation. In its linearized limit, with no dispersion, this equation implies the static acoustic horizon of an analogue gravity model. We, however, show that time-dependent nonlinear effects destabilize the static horizon. We also model the perturbation as a high-frequency travelling wave, and perform a {\\it WKB} analysis, in which the effect of weak dispersion is studied iteratively. We show that even arbitrarily small values of dispersion make the horizon fully opaque to any acoustic disturbance propagating against the bulk flow, with the amplitude and the energy flux of the radial perturbation undergoing a discontinuity at the horizon, and decaying exponentially just outside it.

  9. american nuclear society: Topics by E-print Network

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

    american nuclear society First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 References R-3 ANS 1986....

  10. Acoustic resonance spectroscopy for safeguards

    SciTech Connect (OSTI)

    Olinger, C.T. [Los Alamos National Lab., NM (United States)

    1994-12-31T23:59:59.000Z

    Acoustic resonance spectroscopy (ARS) nonintrusively assesses changes in a sealed item, such as a special nuclear material (SNM) container. The acoustic spectrum of a container is a function of its geometry, material of construction, and occupied volume and a function of the parameters of the contents, such as acoustic velocity, viscosity, and composition. Measuring the spectrum establishes a fingerprint for that item. Monitoring for changes in the fingerprint can be used to detect intrinsic changes in the contents or tampering. Spectra are obtained by inducing vibrations in a container at a given frequency with one transducer and detecting the vibrational response at that frequency with a second transducer. The excitation and detection frequency is then incremented until the desired frequency range is sampled. If desired, the signature can then be reduced to a series of resonant peaks, which facilitates the comparison of spectra for many applications. Required measurement time is typically 10 to 40 s, depending on the measurement range and resolution. Useful attributes of ARS are that spectra respond to various parameters differently, only a few seconds are required to perform an ARS measurement, and measurements can be performed without disturbing the container or its contents. Analysis for these applications of ARS is based on comparison of spectra from the same item taken at different times, so anomalies can be detected without any modeling of the system. However, some theoretical modeling can aid in interpreting spectra.

  11. Acoustic resonance phase locked photoacoustic spectrometer

    DOE Patents [OSTI]

    Pilgrim, Jeffrey S.; Bomse, David S.; Silver, Joel A.

    2003-08-19T23:59:59.000Z

    A photoacoustic spectroscopy method and apparatus for maintaining an acoustic source frequency on a sample cell resonance frequency comprising: providing an acoustic source to the sample cell to generate a photoacoustic signal, the acoustic source having a source frequency; continuously measuring detection phase of the photoacoustic signal with respect to source frequency or a harmonic thereof; and employing the measured detection phase to provide magnitude and direction for correcting the source frequency to the resonance frequency.

  12. Acoustic resonance frequency locked photoacoustic spectrometer

    DOE Patents [OSTI]

    Pilgrim, Jeffrey S.; Bomse, David S.; Silver, Joel A.

    2003-09-09T23:59:59.000Z

    A photoacoustic spectroscopy method and apparatus for maintaining an acoustic source frequency on a sample cell resonance frequency comprising: providing an acoustic source to the sample cell, the acoustic source having a source frequency; repeatedly and continuously sweeping the source frequency across the resonance frequency at a sweep rate; and employing an odd-harmonic of the source frequency sweep rate to maintain the source frequency sweep centered on the resonance frequency.

  13. COSY INFINITY reference manual

    SciTech Connect (OSTI)

    Berz, M.

    1990-07-01T23:59:59.000Z

    This is a reference manual for the arbitrary order particle optics and beam dynamics code COSY INFINITY. It is current as of June 28, 1990. COSY INFINITY is a code to study and design particle optical systems, including beamlines, spectrometers, and particle accelerators. At its core it is using differential algebraic (DA) methods, which allow a very systematic and simple calculation of high order effects. At the same time, it allows the computation of dependences on system parameters, which is often interesting in its own right and can also be used for fitting. COSY INFINITY has a full structured object oriented language environment. This provides a simple interface for the casual user. At the same time, it offers the demanding user a very flexible and powerful tool for the study and design of systems, and more generally, the utilization of DA methods. The power and generality of the environment is perhaps best demonstrated by the fact that the physics routines of COSY INFINITY are written in its own input language and are very compact. The approach also considerably facilitates the implementation of new features because they are incorporated with the same commands that are used for design and study. 26 refs.

  14. Sensor Characteristics Reference Guide

    SciTech Connect (OSTI)

    Cree, Johnathan V.; Dansu, A.; Fuhr, P.; Lanzisera, Steven M.; McIntyre, T.; Muehleisen, Ralph T.; Starke, M.; Banerjee, Pranab; Kuruganti, T.; Castello, C.

    2013-04-01T23:59:59.000Z

    The Buildings Technologies Office (BTO), within the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE), is initiating a new program in Sensor and Controls. The vision of this program is: • Buildings operating automatically and continuously at peak energy efficiency over their lifetimes and interoperating effectively with the electric power grid. • Buildings that are self-configuring, self-commissioning, self-learning, self-diagnosing, self-healing, and self-transacting to enable continuous peak performance. • Lower overall building operating costs and higher asset valuation. The overarching goal is to capture 30% energy savings by enhanced management of energy consuming assets and systems through development of cost-effective sensors and controls. One step in achieving this vision is the publication of this Sensor Characteristics Reference Guide. The purpose of the guide is to inform building owners and operators of the current status, capabilities, and limitations of sensor technologies. It is hoped that this guide will aid in the design and procurement process and result in successful implementation of building sensor and control systems. DOE will also use this guide to identify research priorities, develop future specifications for potential market adoption, and provide market clarity through unbiased information

  15. BA War & Society Module Information

    E-Print Network [OSTI]

    Harman, Neal.A.

    BA War & Society Module Information 2014-2015 www.swansea.ac.uk/artsandhumanities Arts Studies BA War & Society BA War & Society The scope and scale of the BA (Hons) War and Society degree Theories of War 1 (compulsory) HUA102 War and Warfare in the Modern World (compulsory) HIH118 World History

  16. Wind Turbine Acoustic Noise A white paper

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Wind Turbine Acoustic Noise A white paper Prepared by the Renewable Energy Research Laboratory...................................................................... 8 Sound from Wind Turbines .............................................................................................. 10 Sources of Wind Turbine Sound

  17. Acoustics of finite-aperture vortex beams

    E-Print Network [OSTI]

    Mitri, F G

    2014-01-01T23:59:59.000Z

    A method based on the Rayleigh-Sommerfeld surface integral is provided, which makes it feasible to rigorously model, evaluate and compute the acoustic scattering and other mechanical effects of finite-aperture vortex beams such as the acoustic radiation force and torque on a viscoelastic sphere in various applications in acoustic tweezers and microfluidics, particle entrapment, manipulation and rotation. Partial-wave series expansions are derived for the incident field of acoustic spiraling (vortex) beams, comprising high-order Bessel and Bessel-Gauss beams.

  18. Acoustic resonance for nonmetallic mine detection

    SciTech Connect (OSTI)

    Kercel, S.W.

    1998-04-01T23:59:59.000Z

    The feasibility of acoustic resonance for detection of plastic mines was investigated by researchers at the Oak Ridge National Laboratory`s Instrumentation and Controls Division under an internally funded program. The data reported in this paper suggest that acoustic resonance is not a practical method for mine detection. Representative small plastic anti-personnel mines were tested, and were found to not exhibit detectable acoustic resonances. Also, non-metal objects known to have strong acoustic resonances were tested with a variety of excitation techniques, and no practical non-contact method of exciting a consistently detectable resonance in a buried object was discovered. Some of the experimental data developed in this work may be useful to other researchers seeking a method to detect buried plastic mines. A number of excitation methods and their pitfalls are discussed. Excitation methods that were investigated include swept acoustic, chopped acoustic, wavelet acoustic, and mechanical shaking. Under very contrived conditions, a weak response that could be attributed to acoustic resonance was observed, but it does not appear to be practical as a mine detection feature. Transfer properties of soil were investigated. Impulse responses of several representative plastic mines were investigated. Acoustic leakage coupling, and its implications as a disruptive mechanism were investigated.

  19. Platforms and Methods for Acoustic Detection and Monitoring of Key

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    #12;Platforms and Methods for Acoustic Detection and Monitoring of Key Ecosystem Properties Nils Olav Handegard #12;· Introduction · Platforms carrying acoustics · Methods · Applications ­ What we have done · Applications ­ What we would like to do #12;· Introduction · Platforms carrying acoustics

  20. acoustic impedance: Topics by E-print Network

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

    Nassir Navab 6 ACOUSTIC IMPEDANCE INVERSION FOR STATIC AND DYNAMIC CHARACTERIZATION OF A CO2 EOR PROJECT, Fossil Fuels Websites Summary: ACOUSTIC IMPEDANCE INVERSION FOR STATIC...

  1. acoustic impedance inversion: Topics by E-print Network

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

    Topic Index 1 ACOUSTIC IMPEDANCE INVERSION FOR STATIC AND DYNAMIC CHARACTERIZATION OF A CO2 EOR PROJECT, Fossil Fuels Websites Summary: ACOUSTIC IMPEDANCE INVERSION FOR STATIC...

  2. acoustic wave resonator: Topics by E-print Network

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

    Helmholtz resonators Physics Websites Summary: Numerical modeling of nonlinear acoustic waves in a tube connected with Helmholtz resonators Bruno Acoustic wave propagation in a...

  3. acoustic wave resonators: Topics by E-print Network

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

    Helmholtz resonators Physics Websites Summary: Numerical modeling of nonlinear acoustic waves in a tube connected with Helmholtz resonators Bruno Acoustic wave propagation in a...

  4. acoustic band gaps: Topics by E-print Network

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

    type of phononic crystals manufactured Institute of Physics. DOI: 10.10631.2167794 The propagation of acoustic waves in periodic composite Deymier, Pierre 2 Acoustic band gap...

  5. amplitude acoustic wave: Topics by E-print Network

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

    same.29 Keywords: Nonlinear standing wave; Closed acoustic Heller, Barbara 4 Long-range propagation of finite-amplitude acoustic waves in an ocean waveguide Geosciences Websites...

  6. alternative proposal acoustic: Topics by E-print Network

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

    in theory. However, two critical Zhou, Shengli 80 ACOUSTIC STUDY OF THE UD GAMESA WIND TURBINE PROJECT Environmental Sciences and Ecology Websites Summary: ACOUSTIC STUDY OF THE...

  7. acoustic noise reduction: Topics by E-print Network

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

    acoustic receivers of vessels using spectral subtraction Physics Websites Summary: , cavitation etc. created by the propellers generate immense acoustic noise in the vicinity...

  8. acoustic background noise: Topics by E-print Network

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

    or remove acoustic background noise uses setups Paris-Sud XI, Universit de 3 Wind Turbine Acoustic Noise A white paper Renewable Energy Websites Summary: Wind Turbine...

  9. acoustic desorption liad: Topics by E-print Network

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

    coverage... Juwono, Tjipto 2013-01-01 18 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  10. acoustic neurinomas early: Topics by E-print Network

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

    by the Leningrad unknown authors 10 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  11. acoustic equipment: Topics by E-print Network

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

    was to be Music 302 Maher, Robert C. 13 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  12. acoustic monitoring: Topics by E-print Network

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

    Acoustic methods have impediments as well, of course, most notably 26 Acoustic daylight imaging via spectral factorization: Helioseismology and reservoir monitoring: The...

  13. assisted acoustic focusing: Topics by E-print Network

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

    and solved. A. G. Ramm 2008-05-16 28 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  14. acoustic microscopy risswachstumsstudien: Topics by E-print Network

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

    Zhang; Rong-Gen Cai 2004-11-18 8 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  15. acoustic insulation: Topics by E-print Network

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

    Teo, Chi Yan Jeffrey 2011-01-01 17 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  16. acoustic passive localization: Topics by E-print Network

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

    inter-sensor propagation Boyer, Edmond 2 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  17. acoustic chemometrics monitoring: Topics by E-print Network

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

    Acoustic methods have impediments as well, of course, most notably 27 Acoustic daylight imaging via spectral factorization: Helioseismology and reservoir monitoring: The...

  18. acoustic neurinoma presenting: Topics by E-print Network

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

    testable. Visser, M 1999-01-01 18 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  19. acoustic howling suppression: Topics by E-print Network

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

    by the Leningrad unknown authors 15 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  20. acoustics ultrasonic imaging: Topics by E-print Network

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

    Junjie Gong; Fangfang Shi; Yijing Ke 2 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  1. acoustic chemometric monitoring: Topics by E-print Network

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

    Acoustic methods have impediments as well, of course, most notably 27 Acoustic daylight imaging via spectral factorization: Helioseismology and reservoir monitoring: The...

  2. acoustic noise: Topics by E-print Network

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

    of anisotropy in oceanic ambient noise fields and its relevance to Acoustic Daylight imaging CiteSeer Summary: Acoustic Daylight is a new technique for creating pictorial...

  3. acoustic 4f imaging: Topics by E-print Network

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

    24 25 Next Page Last Page Topic Index 1 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  4. acoustic neuroma mimicking: Topics by E-print Network

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

    botnet owners have Stojmenovic, Ivan 12 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  5. acoustic 3-d imaging: Topics by E-print Network

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

    landmarks or com- plete Delson, Eric 20 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  6. acoustic microscopy: Topics by E-print Network

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

    Zhang; Rong-Gen Cai 2004-11-18 8 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  7. acoustic neuroma surgery: Topics by E-print Network

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

    by the Leningrad unknown authors 8 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  8. acoustic trauma evokes: Topics by E-print Network

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

    Course Requirements Lockery, Shawn 18 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  9. airborne acoustical noise: Topics by E-print Network

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

    of anisotropy in oceanic ambient noise fields and its relevance to Acoustic Daylight imaging CiteSeer Summary: Acoustic Daylight is a new technique for creating pictorial...

  10. acoustic overstimulation modifies: Topics by E-print Network

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

    synthesizer can Johnson, Michael T. 13 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  11. acoustic neuroma treatment: Topics by E-print Network

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

    by the Leningrad unknown authors 10 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  12. acoustic neuroma resection: Topics by E-print Network

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

    by the Leningrad unknown authors 6 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  13. acoustic nmr: Topics by E-print Network

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

    Isaac; Steffen, Matthias 2004-01-01 9 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  14. acoustic neurinoma removal: Topics by E-print Network

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

    by the Leningrad unknown authors 4 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  15. acoustic wave based: Topics by E-print Network

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

    acoustic dispersion over SAW wavelengths down to 200 nm, meaning the SAW propagation ... Siemens, Mark 44 Excitation of kinetic geodesic acoustic modes by drift waves in...

  16. acoustic wave sensors: Topics by E-print Network

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

    acoustic wave devices can be used as wireless sensor elements (SAW transponders Zachmann, Gabriel 30 Underwater Acoustic Sensor Networks: Research Challenges CiteSeer...

  17. acoustic wave sensor: Topics by E-print Network

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

    acoustic wave devices can be used as wireless sensor elements (SAW transponders Zachmann, Gabriel 30 Underwater Acoustic Sensor Networks: Research Challenges CiteSeer...

  18. acoustical testing laboratory: Topics by E-print Network

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

    Computational Acoustics, Vol. 9, No. 3 (2001) 1215-1225 c IMACS AIRBORNE ACOUSTICS October 1999 Revised 16 April 2000 A recently developed theoretical model of the airborne...

  19. acoustics ultrasound device: Topics by E-print Network

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

    at low frequencies (5-35MHz Gizeli, Electra 6 Ultrasound acoustic emission in water-stressed plants of Picea abies Karst. Physics Websites Summary: Ultrasound acoustic...

  20. Optical probe with reference fiber

    DOE Patents [OSTI]

    Da Silva, Luiz B. (Danville, CA); Chase, Charles L. (Dublin, CA)

    2006-03-14T23:59:59.000Z

    A system for characterizing tissue includes the steps of generating an emission signal, generating a reference signal, directing the emission signal to and from the tissue, directing the reference signal in a predetermined manner relative to the emission signal, and using the reference signal to compensate the emission signal. In one embodiment compensation is provided for fluctuations in light delivery to the tip of the probe due to cable motion.

  1. FAQS Reference Guide- Chemical Processing

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the February 2010 edition of DOE-STD-1176-2010, Chemical Processing Functional Area Qualification Standard.

  2. FAQS Reference Guide – Emergency Management

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the January 2004 edition of DOE-STD-1177-2004, Emergency Management Functional Area Qualification Standard.

  3. FAQS Reference Guide – Industrial Hygiene

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the November 2007 edition of DOE-STD-1138-2007, Industrial Hygiene Functional Area Qualification Standard.

  4. FAQS Reference Guide – Construction Management

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the March 2004 edition of DOE-STD-1180-2004, Construction Management Functional Area Qualification Standard.

  5. FAQS Reference Guide – Environmental Compliance

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the June 2011 edition of DOE-STD-1156-2011, Environmental Compliance Functional Area Qualification Standard.

  6. Ris Energy Report 6 References Reference list for Chapter 3

    E-Print Network [OSTI]

    Risø Energy Report 6 References Reference list for Chapter 3 1. European Commission. (2007). Communication from the Commis- sion to the European Council and the European Parliament ­ An energy policy of the Brussels European Council 8/9 March 2007. Brussels. (7224/1/07 Rev. 1). 3. Danish Energy authority. (2007

  7. Characterization of acoustically forced swirl flame dynamics

    E-Print Network [OSTI]

    Lieuwen, Timothy C.

    of the flame to acoustic excitation is required. This study presents an analysis of phase-locked OH PLIF images of acoustically excited swirl flames, to identify the key controlling physical processes and qualitatively discuss, and whose relative significance depends upon forcing frequency, amplitude of excitation, and flame

  8. Cooperative Multihop Communication for Underwater Acoustic Networks

    E-Print Network [OSTI]

    Zhou, Shengli

    Cooperative Multihop Communication for Underwater Acoustic Networks Cecilia Carbonelli and Urbashi propagation 1. INTRODUCTION Underwater sensor networks will find applications in data collection, pollution acoustic (UWA) channels differ from those in other media, such as radio channels, due to the high temporal

  9. Acoustically enhanced heat exchange and drying apparatus

    DOE Patents [OSTI]

    Bramlette, T.T.; Keller, J.O.

    1987-07-10T23:59:59.000Z

    A heat transfer drying apparatus includes an acoustically augmented heat transfer chamber for receiving material to be dried. The chamber includes a first heat transfer gas inlet, a second heat transfer gas inlet, a material inlet, and a gas outlet which also serves as a dried material and gas outlet. A non-pulsing first heat transfer gas source provides a first drying gas to the acoustically augmented heat transfer chamber through the first heat transfer gas inlet. A valveless, continuous second heat transfer gas source provides a second drying gas to the acoustically augmented heat transfer chamber through the second heat transfer gas inlet. The second drying gas also generates acoustic waves which bring about acoustical coupling with the gases in the acoustically augmented heat transfer chamber. The second drying gas itself oscillates at an acoustic frequency of approximately 180 Hz due to fluid mechanical motion in the gas. The oscillations of the second heat transfer gas coupled to the first heat transfer gas in the acoustically augmented heat transfer chamber enhance heat and mass transfer by convection within the chamber. 3 figs.

  10. Thermoacoustic Stirling Engine --An acoustic amplifier

    E-Print Network [OSTI]

    Lee, Dongwon

    Thermoacoustic Stirling Engine -- An acoustic amplifier: ambient heat exchanger (water) stacked kW sound hot diesel exhaust hot diesel exhaust 34" 24" Thermoacoustic Stirling Engine -- An acoustic@lanl.gov 505-667-7545 A lighter, smaller, faster, cheaper version of free-piston Stirling 500W Lightweight

  11. Appendix E References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    NEPA Reading Room SEIS for the Production of Tritium in a Commercial Light Water Reactor Reference Documents Appendix E References Appendix E References Crosswalk of...

  12. Piezoelectric materials used in underwater acoustic transducers

    SciTech Connect (OSTI)

    Li, Huidong; Deng, Zhiqun; Carlson, Thomas J.

    2012-07-07T23:59:59.000Z

    Piezoelectric materials have been used in underwater acoustic transducers for nearly a century. In this paper, we reviewed four different types of piezoelectric materials: piezoelectric ceramics, single crystals, composites, and polymers, which are widely used in underwater acoustic transducers nowadays. Piezoelectric ceramics are the most dominant material type and are used as a single-phase material or one of the end members in composites. Piezoelectric single crystals offer outstanding electromechanical response but are limited by their manufacturing cost. Piezoelectric polymers provide excellent acoustic impedance matching and transducer fabrication flexibility although their piezoelectric properties are not as good as ceramics and single crystals. Composites combined the merits of ceramics and polymers and are receiving increased attention. The typical structure and electromechanical properties of each type of materials are introduced and discussed with respect to underwater acoustic transducer applications. Their advantages and disadvantages are summarized. Some of the critical design considerations when developing underwater acoustic transducers with these materials are also touched upon.

  13. Microfabricated bulk wave acoustic bandgap device

    DOE Patents [OSTI]

    Olsson, Roy H.; El-Kady, Ihab F.; McCormick, Frederick; Fleming, James G.; Fleming leg, Carol

    2010-06-08T23:59:59.000Z

    A microfabricated bulk wave acoustic bandgap device comprises a periodic two-dimensional array of scatterers embedded within the matrix material membrane, wherein the scatterer material has a density and/or elastic constant that is different than the matrix material and wherein the periodicity of the array causes destructive interference of the acoustic wave within an acoustic bandgap. The membrane can be suspended above a substrate by an air or vacuum gap to provide acoustic isolation from the substrate. The device can be fabricated using microelectromechanical systems (MEMS) technologies. Such microfabricated bulk wave phononic bandgap devices are useful for acoustic isolation in the ultrasonic, VHF, or UHF regime (i.e., frequencies of order 1 MHz to 10 GHz and higher, and lattice constants of order 100 .mu.m or less).

  14. Microfabricated bulk wave acoustic bandgap device

    DOE Patents [OSTI]

    Olsson, Roy H. (Albuquerque, NM); El-Kady, Ihab F. (Albuquerque, NM); McCormick, Frederick (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); Fleming, legal representative, Carol (Albuquerque, NM)

    2010-11-23T23:59:59.000Z

    A microfabricated bulk wave acoustic bandgap device comprises a periodic two-dimensional array of scatterers embedded within the matrix material membrane, wherein the scatterer material has a density and/or elastic constant that is different than the matrix material and wherein the periodicity of the array causes destructive interference of the acoustic wave within an acoustic bandgap. The membrane can be suspended above a substrate by an air or vacuum gap to provide acoustic isolation from the substrate. The device can be fabricated using microelectromechanical systems (MEMS) technologies. Such microfabricated bulk wave phononic bandgap devices are useful for acoustic isolation in the ultrasonic, VHF, or UHF regime (i.e., frequencies of order 1 MHz to 10 GHz and higher, and lattice constants of order 100 .mu.m or less).

  15. POET with C++ Reference Manual

    E-Print Network [OSTI]

    Buhr, Peter Allan

    POET with #22;C++ Reference Manual University of Waterloo David Taylor and Peter A. Buhr c #3; 1996 July 23, 2006 #3; Permission is granted to make copies for personal or educational use #12; 2 POET Reference Manual Contents 1 Introduction 3 2 Before Starting POET 3 3 Accessing POET 3 4 User Interface 3 5

  16. NIST Cloud Computing Reference Architecture

    E-Print Network [OSTI]

    Perkins, Richard A.

    NIST Cloud Computing Reference Architecture Recommendations of the National Institute of Standards Publication 500-292 #12;i NIST Special Publication 500-292 NIST Cloud Computing Reference Architecture, John Messina, Lee Badger and Dawn Leaf Information Techonology Laboratory Cloud Computing Program

  17. REFERENCE CHECK QUESTIONS Candidate Name:_____________________ Date of Reference:_____________

    E-Print Network [OSTI]

    Provancher, William

    are the candidate's most significant strengths? Any areas for improvement? If you were in a position to hire:_____________ Reference Name:_____________________ Company:____________________ Conducted by:_______________________ Phone (name) handle conflict? How about pressure? Stress? Describe the candidate's productivity, commitment

  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 with their announcement that: "We find that a new type of sound wave, namely, the dust-acoustic waves, can appear" [1 and experimental work on dust acoustic waves is given. The basic physics of the dust acoustic wave and some

  19. 15 Acoustic Daylight Imaging in the Michael J. Buckingham

    E-Print Network [OSTI]

    Buckingham, Michael

    15 Acoustic Daylight Imaging in the Ocean Michael J. Buckingham Scripps Institution of Oceanography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418 15.4 Acoustic daylight images . . . . . . . . . . . . . . . . . . . . . . . . 420 15.5 Concluding. Sensors and Imaging ISBN 0­12­379771­3/$30.00 #12;416 15 Acoustic Daylight Imaging in the Ocean Acoustic

  20. Correlation time of ocean ambient noise intensity in San Diego Bay and target recognition in acoustic daylight images

    E-Print Network [OSTI]

    Wadsworth, Adam J.

    2010-01-01T23:59:59.000Z

    Intensity Data Chapter 3 Acoustic Daylight Image TargetC. L. Epifanio. Acoustic Daylight: Passive Acoustic ImagingRecognition in Acoustic Daylight Images A Thesis submitted

  1. Science and Society Colloquium

    ScienceCinema (OSTI)

    None

    2011-04-25T23:59:59.000Z

    Mr. Randi will give an update of his lecture to the American Physical Society on the occasion of his award of the 1989 Forum Prize. The citation said: "for his unique defense of Science and the scientific method in many disciplines, including physics, against pseudoscience, frauds and charlatans. His use of scientific techniques has contributed to refuting suspicious and fraudulent claims of paranormal results. He has contributed significantly to public understanding of important issues where science and society interact". He is a professional magician and author of many books. He worked with John Maddox, the Editor of Nature to investigate the claims of "water with memory".

  2. Speaker verification system using acoustic data and non-acoustic data

    DOE Patents [OSTI]

    Gable, Todd J. (Walnut Creek, CA); Ng, Lawrence C. (Danville, CA); Holzrichter, John F. (Berkeley, CA); Burnett, Greg C. (Livermore, CA)

    2006-03-21T23:59:59.000Z

    A method and system for speech characterization. One embodiment includes a method for speaker verification which includes collecting data from a speaker, wherein the data comprises acoustic data and non-acoustic data. The data is used to generate a template that includes a first set of "template" parameters. The method further includes receiving a real-time identity claim from a claimant, and using acoustic data and non-acoustic data from the identity claim to generate a second set of parameters. The method further includes comparing the first set of parameters to the set of parameters to determine whether the claimant is the speaker. The first set of parameters and the second set of parameters include at least one purely non-acoustic parameter, including a non-acoustic glottal shape parameter derived from averaging multiple glottal cycle waveforms.

  3. Writing magnetic patterns with surface acoustic waves

    SciTech Connect (OSTI)

    Li, Weiyang; Buford, Benjamin; Jander, Albrecht; Dhagat, Pallavi, E-mail: dhagat@eecs.oregonstate.edu [School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331 (United States)

    2014-05-07T23:59:59.000Z

    A novel patterning technique that creates magnetization patterns in a continuous magnetostrictive film with surface acoustic waves is demonstrated. Patterns of 10??m wide stripes of alternating magnetization and a 3??m dot of reversed magnetization are written using standing and focusing acoustic waves, respectively. The magnetization pattern is size-tunable, erasable, and rewritable by changing the magnetic field and acoustic power. This versatility, along with its solid-state implementation (no moving parts) and electronic control, renders it as a promising technique for application in magnetic recording, magnonic signal processing, magnetic particle manipulation, and spatial magneto-optical modulation.

  4. Acoustically enhanced heat exchange and drying apparatus

    DOE Patents [OSTI]

    Bramlette, T. Tazwell (Livermore, CA); Keller, Jay O. (Oakland, CA)

    1989-01-01T23:59:59.000Z

    A heat transfer apparatus includes a first chamber having a first heat transfer gas inlet, a second heat transfer gas inlet, and an outlet. A first heat transfer gas source provides a first gas flow to the first chamber through the first heat transfer gas inlet. A second gas flow through a second chamber connected to the side of the first chamber, generates acoustic waves which bring about acoustical coupling of the first and second gases in the acoustically augmented first chamber. The first chamber may also include a material inlet for receiving material to be dried, in which case the gas outlet serves as a dried material and gas outlet.

  5. Copper vapor laser acoustic thermometry system

    DOE Patents [OSTI]

    Galkowski, Joseph J. (Livermore, CA)

    1987-01-01T23:59:59.000Z

    A copper vapor laser (CVL) acoustic thermometry system is disclosed. The invention couples an acoustic pulse a predetermined distance into a laser tube by means of a transducer and an alumina rod such that an echo pulse is returned along the alumina rod to the point of entry. The time differential between the point of entry of the acoustic pulse into the laser tube and the exit of the echo pulse is related to the temperature at the predetermined distance within the laser tube. This information is processed and can provide an accurate indication of the average temperature within the laser tube.

  6. Copyright by SIAM. Unauthorized reproduction of this article is prohibited. SIAM J. IMAGING SCIENCES c 2011 Society for Industrial and Applied Mathematics

    E-Print Network [OSTI]

    Qian, Jianliang

    in the United States. The mortality rate from breast cancer has declined in recent years due to progress in both the acoustic source that gives information about the rate of absorption at each point in the body, thus. The American Cancer Society reports that breast cancer is the second overall leading cause of death among women

  7. FAQS Reference Guide – Occupational Safety

    Broader source: Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the July 2011 version of DOE-STD-1160-2011, Occupational Safety Functional Area Qualification Standard.

  8. Safeguards and Security Program References

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

    2005-08-26T23:59:59.000Z

    The manual establishes definitions for terms related to the Department of Energy Safeguards and Security (S&S) Program and includes lists of references and acronyms/abbreviations applicable to S&S Program directives. Cancels the Safeguards and Security Glossary of Terms, dated 12-18-95. Current Safeguards and Security Program References can also be found at Safeguards and Security Policy Information Resource (http://pir.pnl.gov/)

  9. Kirkwood Society 1 The Kirkwood Society

    E-Print Network [OSTI]

    Indiana University

    with current graduate students from Greece, Venezuela, and China, remind us daily of how astronomy has become: Simulations Of The Solar Nebula The term "Solar Nebula" refers to the hypothetical disk of gas and dust around most of the Solar System mass outside the Sun, remains a critical yet largely unresolved problem

  10. Surface acoustic wave dust deposition monitor

    DOE Patents [OSTI]

    Fasching, G.E.; Smith, N.S. Jr.

    1988-02-12T23:59:59.000Z

    A system is disclosed for using the attenuation of surface acoustic waves to monitor real time dust deposition rates on surfaces. The system includes a signal generator, a tone-burst generator/amplifier connected to a transmitting transducer for converting electrical signals into acoustic waves. These waves are transmitted through a path defining means adjacent to a layer of dust and then, in turn, transmitted to a receiving transducer for changing the attenuated acoustic wave to electrical signals. The signals representing the attenuated acoustic waves may be amplified and used in a means for analyzing the output signals to produce an output indicative of the dust deposition rates and/or values of dust in the layer. 8 figs.

  11. REFERENCES

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010In addition to 1 |D I S P U T Edelivery205.1B

  12. Tunable damper for an acoustic wave guide

    DOE Patents [OSTI]

    Rogers, S.C.

    1982-10-21T23:59:59.000Z

    A damper for tunably damping acoustic waves in an ultrasonic waveguide is provided which may be used in a hostile environment such as a nuclear reactor. The area of the waveguide, which may be a selected size metal rod in which acoustic waves are to be damped, is wrapped, or surrounded, by a mass of stainless steel wool. The wool wrapped portion is then sandwiched between tuning plates, which may also be stainless steel, by means of clamping screws which may be adjusted to change the clamping force of the sandwiched assembly along the waveguide section. The plates are preformed along their length in a sinusoidally bent pattern with a period approximately equal to the acoustic wavelength which is to be damped. The bent pattern of the opposing plates are in phase along their length relative to their sinusoidal patterns so that as the clamping screws are tightened a bending stress is applied to the waveguide at 180/sup 0/ intervals along the damping section to oppose the acoustic wave motions in the waveguide and provide good coupling of the wool to the guide. The damper is tuned by selectively tightening the clamping screws while monitoring the amplitude of the acoustic waves launched in the waveguide. It may be selectively tuned to damp particular acoustic wave modes (torsional or extensional, for example) and/or frequencies while allowing others to pass unattenuated.

  13. Apparatus for separating particles utilizing engineered acoustic contrast capture particles

    DOE Patents [OSTI]

    Kaduchak, Gregory; Ward, Michael D

    2014-10-21T23:59:59.000Z

    An apparatus for separating particles from a medium includes a capillary defining a flow path therein that is in fluid communication with a medium source. The medium source includes engineered acoustic contrast capture particle having a predetermined acoustic contrast. The apparatus includes a vibration generator that is operable to produce at least one acoustic field within the flow path. The acoustic field produces a force potential minima for positive acoustic contrast particles and a force potential minima for negative acoustic contrast particles in the flow path and drives the engineered acoustic contrast capture particles to either the force potential minima for positive acoustic contrast particles or the force potential minima for negative acoustic contrast particles.

  14. Apparatus for separating particles utilizing engineered acoustic contrast capture particles

    DOE Patents [OSTI]

    Kaduchak, Gregory (Los Alamos, NM); Ward, Michael D. (Los Alamos, NM)

    2011-12-27T23:59:59.000Z

    An apparatus for separating particles from a medium includes a capillary defining a flow path therein that is in fluid communication with a medium source. The medium source includes engineered acoustic contrast capture particle having a predetermined acoustic contrast. The apparatus includes a vibration generator that is operable to produce at least one acoustic field within the flow path. The acoustic field produces a force potential minima for positive acoustic contrast particles and a force potential minima for negative acoustic contrast particles in the flow path and drives the engineered acoustic contrast capture particles to either the force potential minima for positive acoustic contrast particles or the force potential minima for negative acoustic contrast particles.

  15. L.L.Thompson: Finite element methods for acoustics, Preprint: J.Acoust.Soc.Am. A review of finite element methods for time-harmonic acoustics

    E-Print Network [OSTI]

    Thompson, Lonny L.

    L.L.Thompson: Finite element methods for acoustics, Preprint: J.Acoust.Soc.Am. A review of finite element methods for time-harmonic acoustics Lonny L. Thompson Department of Mechanical Engineering, Clemson University Clemson, South Carolina, 29634-0921, USA Email: lonny.thompson@ces.clemson.edu (Dated

  16. Synthesis of anisotropic swirling surface acoustic waves by inverse filter, towards integrated generators of acoustical vortices

    E-Print Network [OSTI]

    Riaud, Antoine; Charron, Eric; Bussonnière, Adrien; Matar, Olivier Bou

    2015-01-01T23:59:59.000Z

    From radio-electronics signal analysis to biological samples actuation, surface acoustic waves (SAW) are involved in a multitude of modern devices. Despite this versatility, SAW transducers developed up to date only authorize the synthesis of the most simple standing or progressive waves such as plane and focused waves. In particular, acoustical integrated sources able to generate acoustical vortices (the analogue of optical vortices) are missing. In this work, we propose a flexible tool based on inverse filter technique and arrays of SAW transducers enabling the synthesis of prescribed complex wave patterns at the surface of anisotropic media. The potential of this setup is illustrated by the synthesis of a 2D analog of 3D acoustical vortices, namely "swirling surface acoustic waves". Similarly to their 3D counterpart, they appear as concentric structures of bright rings with a phase singularity in their center resulting in a central dark spot. Swirling SAW can be useful in fragile sensors whose neighborhood...

  17. Method and apparatus of spectro-acoustically enhanced ultrasonic detection for diagnostics

    DOE Patents [OSTI]

    Vo-Dinh, Tuan (Knoxville, TN); Norton, Stephen J. (Raleigh, NC)

    2001-01-01T23:59:59.000Z

    An apparatus for detecting a discontinuity in a material includes a source of electromagnetic radiation has a wavelength and an intensity sufficient to induce an enhancement in contrast between a manifestation of an acoustic property in the material and of the acoustic property in the discontinuity, as compared to when the material is not irradiated by the electromagnetic radiation. An acoustic emitter directs acoustic waves to the discontinuity in the material. The acoustic waves have a sensitivity to the acoustic property. An acoustic receiver receives the acoustic waves generated by the acoustic emitter after the acoustic waves have interacted with the material and the discontinuity. The acoustic receiver also generates a signal representative of the acoustic waves received by the acoustic receiver. A processor, in communication with the acoustic receiver and responsive to the signal generated by the acoustic receiver, is programmed to generate informational output about the discontinuity based on the signal generated by the acoustic receiver.

  18. Micromachined Optical and Acoustic Waveguide Systems for Advance Sensing and Imaging Applications

    E-Print Network [OSTI]

    Chang, Cheng-Chung

    2014-07-08T23:59:59.000Z

    it possible to utilize single-crystalline silicon as a structural material for acoustic wave propagation. It enables the development of high-performance integrated acoustic circuits and allows direct acoustic signal processing and control. The acoustic...

  19. Micromachined Optical and Acoustic Waveguide Systems for Advance Sensing and Imaging Applications 

    E-Print Network [OSTI]

    Chang, Cheng-Chung

    2014-07-08T23:59:59.000Z

    it possible to utilize single-crystalline silicon as a structural material for acoustic wave propagation. It enables the development of high-performance integrated acoustic circuits and allows direct acoustic signal processing and control. The acoustic...

  20. C++ References Kenneth I. Joy

    E-Print Network [OSTI]

    California at Davis, University of

    . It enabled me to see how to use the language to accomplish what I wanted to do. ffl Scott Meyer's Book gave plate'' member functions came very close to the ``complete class'' paradigm, that I developed from Meyer that I attempt to utilize. #12; C++ References Page 2 of 3 Lippman, Stanley B., C++ Primer, 2nd Edition

  1. This journal is The Royal Society of Chemistry [year] [journal], [year], [vol], 0000 | 1 Droplet mobility on lubricant-impregnated surfaces

    E-Print Network [OSTI]

    , the surrounding gas, and the liquid that needs to be shed ­ referred hereafter for simplicity as oil, airThis journal is © The Royal Society of Chemistry [year] [journal], [year], [vol], 00­00 | 1 Droplet

  2. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1989-01-01T23:59:59.000Z

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

  3. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, W.B. III.

    1989-02-14T23:59:59.000Z

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

  4. Laser and acoustic lens for lithotripsy

    DOE Patents [OSTI]

    Visuri, Steven R. (Livermore, CA); Makarewicz, Anthony J. (San Ramon, CA); London, Richard A. (Orinda, CA); Benett, William J. (Livermore, CA); Krulevitch, Peter (Pleasanton, CA); Da Silva, Luiz B. (Pleasanton, CA)

    2002-01-01T23:59:59.000Z

    An acoustic focusing device whose acoustic waves are generated by laser radiation through an optical fiber. The acoustic energy is capable of efficient destruction of renal and biliary calculi and deliverable to the site of the calculi via an endoscopic procedure. The device includes a transducer tip attached to the distal end of an optical fiber through which laser energy is directed. The transducer tip encapsulates an exogenous absorbing dye. Under proper irradiation conditions (high absorbed energy density, short pulse duration) a stress wave is produced via thermoelastic expansion of the absorber for the destruction of the calculi. The transducer tip can be configured into an acoustic lens such that the transmitted acoustic wave is shaped or focused. Also, compressive stress waves can be reflected off a high density/low density interface to invert the compressive wave into a tensile stress wave, and tensile stresses may be more effective in some instances in disrupting material as most materials are weaker in tension than compression. Estimations indicate that stress amplitudes provided by this device can be magnified more than 100 times, greatly improving the efficiency of optical energy for targeted material destruction.

  5. ACOUSTIC WAVE TRAPPING IN ONE-DIMENSIONAL AXISYMMETRIC ARRAYS

    E-Print Network [OSTI]

    . Introduction Acoustic resonances are readily observed in axial flow compressors and this has led to many that both the acoustic and the water-wave channel problems reduced to the determination of the eigenvalues

  6. Acoustic modes in combustors with complex impedances and multidimensional active

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Acoustic modes in combustors with complex impedances and multidimensional active flames F. Nicoud-acoustic modes in combustors. In the case of a non-isothermal reacting medium, the wave equation for the pressure

  7. Acoustic clouds: standing sound waves around a black hole analogue

    E-Print Network [OSTI]

    Carolina L. Benone; Luis C. B. Crispino; Carlos Herdeiro; Eugen Radu

    2015-01-28T23:59:59.000Z

    Under certain conditions sound waves in fluids experience an acoustic horizon with analogue properties to those of a black hole event horizon. In particular, a draining bathtub-like model can give rise to a rotating acoustic horizon and hence a rotating black hole (acoustic) analogue. We show that sound waves, when enclosed in a cylindrical cavity, can form stationary waves around such rotating acoustic black holes. These acoustic perturbations display similar properties to the scalar clouds that have been studied around Kerr and Kerr-Newman black holes; thus they are dubbed acoustic clouds. We make the comparison between scalar clouds around Kerr black holes and acoustic clouds around the draining bathtub explicit by studying also the properties of scalar clouds around Kerr black holes enclosed in a cavity. Acoustic clouds suggest the possibility of testing, experimentally, the existence and properties of black hole clouds, using analog models.

  8. Acoustic clouds: standing sound waves around a black hole analogue

    E-Print Network [OSTI]

    Benone, Carolina L; Herdeiro, Carlos; Radu, Eugen

    2014-01-01T23:59:59.000Z

    Under certain conditions sound waves in fluids experience an acoustic horizon with analogue properties to those of a black hole event horizon. In particular, a draining bathtub-like model can give rise to a rotating acoustic horizon and hence a rotating black hole (acoustic) analogue. We show that sound waves, when enclosed in a cylindrical cavity, can form stationary waves around such rotating acoustic black holes. These acoustic perturbations display similar properties to the scalar clouds that have been studied around Kerr and Kerr-Newman black holes; thus they are dubbed acoustic clouds. We make the comparison between scalar clouds around Kerr black holes and acoustic clouds around the draining bathtub explicit by studying also the properties of scalar clouds around Kerr black holes enclosed in a cavity. Acoustic clouds suggest the possibility of testing, experimentally, the existence and properties of black hole clouds, using analog models.

  9. Acoustic characteristics of bay bottom sediments in Lavaca Bay, TX

    E-Print Network [OSTI]

    Patch, Mary Catherine

    2005-08-29T23:59:59.000Z

    acoustic return of the bay bottom, and 2) strong, shallow reflectors??surface strong, mounds, buried strong, andburied multiples, which describe strong acoustic returns in the upper 5 m of stratigraphy. Within the lower package, four categories were...

  10. acoustic wave equation: Topics by E-print Network

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

    media Josselin Garnier in acoustics4,34 , and also in other domains, such as seismic wave propagation7,8,35 . Experimental observations show that the attenuation of acoustic waves...

  11. Acoustic measurement of the Deepwater Horizon Macondo well flow rate

    E-Print Network [OSTI]

    Camilli, Richard

    On May 31, 2010, a direct acoustic measurement method was used to quantify fluid leakage rate from the Deepwater Horizon Macondo well prior to removal of its broken riser. This method utilized an acoustic imaging sonar and ...

  12. Methods and apparatus for multi-parameter acoustic signature inspection

    DOE Patents [OSTI]

    Diaz, Aaron A. (Richland, WA); Samuel, Todd J. (Pasco, WA); Valencia, Juan D. (Kennewick, WA); Gervais, Kevin L. (Richland, WA); Tucker, Brian J. (Pasco, WA); Kirihara, Leslie J. (Richland, WA); Skorpik, James R. (Kennewick, WA); Reid, Larry D. (Benton City, WA); Munley, John T. (Benton City, WA); Pappas, Richard A. (Richland, WA); Wright, Bob W. (West Richland, WA); Panetta, Paul D. (Richland, WA); Thompson, Jason S. (Richland, WA)

    2007-07-24T23:59:59.000Z

    A multiparameter acoustic signature inspection device and method are described for non-invasive inspection of containers. Dual acoustic signatures discriminate between various fluids and materials for identification of the same.

  13. Hybrid percussion : extending physical instruments using sampled acoustics

    E-Print Network [OSTI]

    Aimi, Roberto Mario, 1973-

    2007-01-01T23:59:59.000Z

    This thesis presents a system architecture for creating hybrid digital-acoustic percussion instruments by combining extensions of existing signal processing techniques with specially-designed semi-acoustic physical ...

  14. Distributed Space-Time Cooperative Schemes for Underwater Acoustic Communications

    E-Print Network [OSTI]

    Stojanovic, Milica

    Distributed Space-Time Cooperative Schemes for Underwater Acoustic Communications Madhavan, which is a main characteristic of underwater acoustic channels. A time-reversal distributed space in oceanic research, such as [3] [4]: data collec- tion, pollution monitoring, tactical surveillance

  15. Challenges for Efficient Communication in Underwater Acoustic Sensor Networks

    E-Print Network [OSTI]

    Pompili, Dario

    Challenges for Efficient Communication in Underwater Acoustic Sensor Networks Ian F. Akyildiz for oceano- graphic data collection, pollution monitoring, offshore explo- ration and tactical surveillance in collaborative monitoring missions. Underwater acoustic network- ing is the enabling technology

  16. Acoustic and Seismic Modalities for Unattended Ground Sensors

    SciTech Connect (OSTI)

    Elbring, G.J.; Ladd, M.D.; McDonald, T.S.; Sleefe, G.E.

    1999-03-31T23:59:59.000Z

    In this paper, we have presented the relative advantages and complementary aspects of acoustic and seismic ground sensors. A detailed description of both acoustic and seismic ground sensing methods has been provided. Acoustic and seismic phenomenology including source mechanisms, propagation paths, attenuation, and sensing have been discussed in detail. The effects of seismo-acoustic and acousto-seismic interactions as well as recommendations for minimizing seismic/acoustic cross talk have been highlighted. We have shown representative acoustic and seismic ground sensor data to illustrate the advantages and complementary aspects of the two modalities. The data illustrate that seismic transducers often respond to acoustic excitation through acousto-seismic coupling. Based on these results, we discussed the implications of this phenomenology on the detection, identification, and localization objectives of unattended ground sensors. We have concluded with a methodology for selecting the preferred modality (acoustic and/or seismic) for a particular application.

  17. Ultrafast photo-acoustic spectroscopy of super-cooled liquids

    E-Print Network [OSTI]

    Klieber, Christoph

    2010-01-01T23:59:59.000Z

    Picosecond laser ultrasonic techniques for acoustic wave generation and detection were adapted to probe longitudinal and transverse acoustic waves in liquids at gigahertz frequencies. The experimental effort was designed ...

  18. Anisotropic Complementary Acoustic Metamaterial for Canceling out Aberrating Layers

    E-Print Network [OSTI]

    Shen, Chen

    In this paper, we investigate a type of anisotropic, acoustic complementary metamaterial (CMM) and its application in restoring acoustic fields distorted by aberrating layers. The proposed quasi two-dimensional (2D), ...

  19. 13.811 Advanced Structural Dynamics and Acoustics, Spring 2004

    E-Print Network [OSTI]

    Schmidt, Henrik

    Foundations of 3D elasticity. Fluid and elastic wave equations. Elastic and plastic waves in rods and beams. Waves in plates. Interaction with an acoustic fluid. Dynamics and acoustics of cylindrical shells. Radiation and ...

  20. acoustical response: Topics by E-print Network

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

    ... 10 Sources of Wind Turbine Sound Massachusetts at Amherst, University of 195 Acoustic Laptops as a research...

  1. Oscillatory Flame Response in Acoustically Coupled Fuel Droplet Combustion

    E-Print Network [OSTI]

    Sevilla Esparza, Cristhian Israel

    2013-01-01T23:59:59.000Z

    acoustic excitation. The thermoacoustic instability fosteredgain motivation from thermoacoustic phenomena pervasive into the quantification of thermoacoustic instabil- ity in an

  2. An experimental and theoretical acoustic investigation of single disc propellers

    E-Print Network [OSTI]

    Bumann, Elizabeth Ann

    1988-01-01T23:59:59.000Z

    performance strip analysis which utilized a NACA 4-digit series airfoil data bank to calculate the lift and drag for each blade segment given the shape and motion of the propeller. A RPM range between 3500 and 7000 RPM in 250 increments was used for each... ACOUSTIC PREDICTION TECHNIQUES . . 4 Gutin Garrick and Watkins Lighthill's Acoustic Analogy Ffowcs - Williams and Hawkings Farassat Ha. nson Woan and Gregorek . 8 10 11 III ACOUSTIC COMPACT SOURCE THEOR'I Blade Element Theory Acoustic...

  3. 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)

    2011-05-17T23:59:59.000Z

    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.

  4. RULES AND REGULATIONS OF THE SOCIETY R-0 DEFINITIONS

    E-Print Network [OSTI]

    Bhashyam, Srikrishna

    means the "Indian neutron scattering society". (c) Office means the Registered Office of the Society (d

  5. The Consumption of Reference Resources

    E-Print Network [OSTI]

    G. A. White; J. A. Vaccaro; H. M. Wiseman

    2008-11-22T23:59:59.000Z

    Under the operational restriction of the U(1)-superselection rule, states that contain coherences between eigenstates of particle number constitute a resource. Such resources can be used to facilitate operations upon systems that otherwise cannot be performed. However, the process of doing this consumes reference resources. We show this explicitly for an example of a unitary operation that is forbidden by the U(1)-superselection rule.

  6. HANFORD WASTE MINERALOGY REFERENCE REPORT

    SciTech Connect (OSTI)

    DISSELKAMP RS

    2010-06-29T23:59:59.000Z

    This report lists the observed mineral phases present in the Hanford tanks. This task was accomplished by performing a review of numerous reports that used experimental techniques including, but not limited to: x-ray diffraction, polarized light microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron energy loss spectroscopy, and particle size distribution analyses. This report contains tables that can be used as a quick reference to identify the crystal phases observed in Hanford waste.

  7. HANFORD WASTE MINEROLOGY REFERENCE REPORT

    SciTech Connect (OSTI)

    DISSELKAMP RS

    2010-06-18T23:59:59.000Z

    This report lists the observed mineral phase phases present in the Hanford tanks. This task was accomplished by performing a review of numerous reports using experimental techniques including, but not limited to: x-ray diffraction, polarized light microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron energy loss spectroscopy, and particle size distribution analyses. This report contains tables that can be used as a quick reference to identify the crystal phases present observed in Hanford waste.

  8. Microgrid cyber security reference architecture.

    SciTech Connect (OSTI)

    Veitch, Cynthia K.; Henry, Jordan M.; Richardson, Bryan T.; Hart, Derek H.

    2013-07-01T23:59:59.000Z

    This document describes a microgrid cyber security reference architecture. First, we present a high-level concept of operations for a microgrid, including operational modes, necessary power actors, and the communication protocols typically employed. We then describe our motivation for designing a secure microgrid; in particular, we provide general network and industrial control system (ICS)-speci c vulnerabilities, a threat model, information assurance compliance concerns, and design criteria for a microgrid control system network. Our design approach addresses these concerns by segmenting the microgrid control system network into enclaves, grouping enclaves into functional domains, and describing actor communication using data exchange attributes. We describe cyber actors that can help mitigate potential vulnerabilities, in addition to performance bene ts and vulnerability mitigation that may be realized using this reference architecture. To illustrate our design approach, we present a notional a microgrid control system network implementation, including types of communica- tion occurring on that network, example data exchange attributes for actors in the network, an example of how the network can be segmented to create enclaves and functional domains, and how cyber actors can be used to enforce network segmentation and provide the neces- sary level of security. Finally, we describe areas of focus for the further development of the reference architecture.

  9. A new acoustic three dimensional intensity and energy density probe

    E-Print Network [OSTI]

    Boyer, Edmond

    A new acoustic three dimensional intensity and energy density probe F. Aymea , C. Carioub , M is a great advantage. In this frame, a new intensity acoustic probe has been developed to compute acoustic quantities which can be input data for energetic identification methods. 1 Introduction Noise matters

  10. Wormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks

    E-Print Network [OSTI]

    Zhang, Rui

    ), Unmanned Underwater Vehicles (UUV), and surface stations, and nearby nodes communicate via acoustic ratherWormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks Rui Zhang and Yanchao in underwater acoustic networks (UANs) with floating node mobility. In hostile environments, neighbor discovery

  11. ACOUSTIC POLLUTION HOW HUMAN ACTIVITIES DISRUPT WILDLIFE COMMUNICATION

    E-Print Network [OSTI]

    Gray, Matthew

    4/17/2011 1 ACOUSTIC POLLUTION HOW HUMAN ACTIVITIES DISRUPT WILDLIFE COMMUNICATION Emily Hockman M of acoustic pollution in the oceans and effects on marine mammals Where do we go from here? #12;4/17/2011 2 ON ACOUSTIC POLLUTION Anthropogenic sound generation Transportation Army/Navy Research Commercial Birds

  12. Offices and dwellings: what building acoustics for sustainable development?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Offices and dwellings: what building acoustics for sustainable development? M. Asselineau, A.asselineau@peutz.fr Proceedings of the Acoustics 2012 Nantes Conference 23-27 April 2012, Nantes, France 3211 #12;Sustainability for sustainable projects as defined in the French standards, one specifically deals with acoustic comfort. Over

  13. Ion acoustic shock waves in degenerate plasmas

    SciTech Connect (OSTI)

    Akhtar, N. [Theoretical Plasma Physics Division, PINSTECH, Nilore, Islamabad 44000 Pakistan (Pakistan); Hussain, S. [Theoretical Plasma Physics Division, PINSTECH, Nilore, Islamabad 44000 Pakistan (Pakistan); Department of Physics and Applied Mathematics, PIEAS, Nilore, Islamabad 44000 Pakistan (Pakistan)

    2011-07-15T23:59:59.000Z

    Korteweg de Vries Burgers equation for negative ion degenerate dissipative plasma has been derived using reductive perturbation technique. The quantum hydrodynamic model is used to study the quantum ion acoustic shock waves. The effects of different parameters on quantum ion acoustic shock waves are studied. It is found that quantum parameter, electrons Fermi temperature, temperature of positive and negative ions, mass ratio of positive to negative ions, viscosity, and density ratio have significant impact on the shock wave structure in negative ion degenerate plasma.

  14. Linear phase distribution of acoustical vortices

    SciTech Connect (OSTI)

    Gao, Lu; Zheng, Haixiang [Key Laboratory of Optoelectronics of Jiangsu Province, School of Physics Science and Technology, Nanjing Normal University, 1 Wenyuan Road, Xianlin District, Nanjing 210023 (China); Ma, Qingyu, E-mail: maqingyu@njnu.edu.cn [Key Laboratory of Optoelectronics of Jiangsu Province, School of Physics Science and Technology, Nanjing Normal University, 1 Wenyuan Road, Xianlin District, Nanjing 210023 (China); Laboratory of Modern Acoustics of MOE, Nanjing University, Nanjing 210093 (China); Tu, Juan; Zhang, Dong [Laboratory of Modern Acoustics of MOE, Nanjing University, Nanjing 210093 (China)

    2014-07-14T23:59:59.000Z

    Linear phase distribution of phase-coded acoustical vortices was theoretically investigated based on the radiation theory of point source, and then confirmed by experimental measurements. With the proposed criterion of positive phase slope, the possibility of constructing linear circular phase distributions is demonstrated to be determined by source parameters. Improved phase linearity can be achieved at larger source number, lower frequency, smaller vortex radius, and/or longer axial distance. Good agreements are observed between numerical simulations and measurement results for circular phase distributions. The favorable results confirm the feasibility of precise phase control for acoustical vortices and suggest potential applications in particle manipulation.

  15. Acoustic probing of salt using sonar

    E-Print Network [OSTI]

    Butler, Kenneth Bryan

    1977-01-01T23:59:59.000Z

    , glycerine, and s1li cone oil provi ded satisfactory performance. In spite of these results, Gupta did not develop a workable means of us1ng 11quid coupl1ng media under mine condit1ons. In his field tests, Gupta used dental impression plaster (a coupling... acoustic pulses which are coupled 1nto the salt via a castor oil coupling medium. The acoustic source signa'i is a square-enveloped pulse of compress1onal waves; a pulse duration of e1ther 0. 3 ms or 1. 1 ms is used. The ranges to discontinuities...

  16. Reference Inflow Characterization for River Resource Reference Model (RM2)

    SciTech Connect (OSTI)

    Neary, Vincent S [ORNL

    2011-12-01T23:59:59.000Z

    Sandia National Laboratory (SNL) is leading an effort to develop reference models for marine and hydrokinetic technologies and wave and current energy resources. This effort will allow the refinement of technology design tools, accurate estimates of a baseline levelized cost of energy (LCoE), and the identification of the main cost drivers that need to be addressed to achieve a competitive LCoE. As part of this effort, Oak Ridge National Laboratory was charged with examining and reporting reference river inflow characteristics for reference model 2 (RM2). Published turbulent flow data from large rivers, a water supply canal and laboratory flumes, are reviewed to determine the range of velocities, turbulence intensities and turbulent stresses acting on hydrokinetic technologies, and also to evaluate the validity of classical models that describe the depth variation of the time-mean velocity and turbulent normal Reynolds stresses. The classical models are found to generally perform well in describing river inflow characteristics. A potential challenge in river inflow characterization, however, is the high variability of depth and flow over the design life of a hydrokinetic device. This variation can have significant effects on the inflow mean velocity and turbulence intensity experienced by stationary and bottom mounted hydrokinetic energy conversion devices, which requires further investigation, but are expected to have minimal effects on surface mounted devices like the vertical axis turbine device designed for RM2. A simple methodology for obtaining an approximate inflow characterization for surface deployed devices is developed using the relation umax=(7/6)V where V is the bulk velocity and umax is assumed to be the near-surface velocity. The application of this expression is recommended for deriving the local inflow velocity acting on the energy extraction planes of the RM2 vertical axis rotors, where V=Q/A can be calculated given a USGS gage flow time-series and stage vs. cross-section area rating relationship.

  17. American Physical Society awards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta Fe MetroWeinbergAmerican Physical Society

  18. American Nuclear Society Awards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWPAlumni Alumni PARC/I-CARES CERTIFICATE INofNuclear Society Awards

  19. American Physical Society Awards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWPAlumni Alumni PARC/I-CARES CERTIFICATE INofNuclear Society

  20. American Physical Society Fellows

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWPAlumni Alumni PARC/I-CARES CERTIFICATE INofNuclear SocietyAmerican

  1. Reference electrode for electrolytic cell

    DOE Patents [OSTI]

    Kessie, R.W.

    1988-07-28T23:59:59.000Z

    A reference electrode device is provided for a high temperature electrolytic cell used to electrolytically recover uranium from spent reactor fuel dissolved in an anode pool, the device having a glass tube to enclose the electrode and electrolyte and serve as a conductive membrane with the cell electrolyte, and an outer metal tube about the glass tube to serve as a shield and basket for any glass sections broken by handling of the tube to prevent their contact with the anode pool, the metal tube having perforations to provide access between the bulk of the cell electrolyte and glass membrane. 4 figs.

  2. PVWatts Version 1 Technical Reference

    SciTech Connect (OSTI)

    Dobos, A. P.

    2013-10-01T23:59:59.000Z

    The NREL PVWatts(TM) calculator is a web application developed by the National Renewable Energy Laboratory (NREL) that estimates the electricity production of a grid-connected photovoltaic system based on a few simple inputs. PVWatts combines a number of sub-models to predict overall system performance, and makes several hidden assumptions about performance parameters. This technical reference details the individual sub-models, documents assumptions and hidden parameters, and explains the sequence of calculations that yield the final system performance estimation.

  3. Tips: References | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPower 2010 1 TNews & SolarLaundryReferences Tips:

  4. References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2A en7/%2ANationalReferences

  5. Tips: References | 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 onYouTube YouTube Note: Since the.pdfBreakingMayDepartmentTest for PumpingThe| Department ofAir DuctsTips:References Tips:

  6. Non-Riemannian geometry of vortex acoustics

    SciTech Connect (OSTI)

    Garcia de Andrade, L.C. [Departamento de Fisica Teorica, Instituto de Fisica, Universidade Estadual do Rio de Janeiro, Rua Sao Francisco Xavier 524, Maracana, 20550, Rio de Janeiro, RJ (Brazil)

    2004-09-15T23:59:59.000Z

    The concept of acoustic torsion is introduced by making use of the scalar wave equation in Riemann-Cartan spacetime. Acoustic torsion extends the acoustic metric previously given by Unruh (PRL-1981). The wave equation describes irrotational perturbations in rotational nonrelativistic fluids. This physical motivation allows us to show that the acoustic line element can be conformally mapped to the line element of a stationary torsion loop in non-Riemannian gravity. Two examples of such sonic analogues are given. The first is the stationary torsion loop in teleparallel gravity. In the far from the vortex approximation, the Cartan torsion vector is shown to be proportional to the quantum vortex number of the superfluid. The torsion vector is also shown to be proportional to the superfluid vorticity in the presence of vortices. The formation of superfluid vortices is shown not to be favored by torsion loops in Riemann-Cartan spacetime, as long as this model is concerned. It is suggested that the teleparallel model may help to find a model for superfluid neutron stars vortices based on non-Riemannian gravity.

  7. Ocean Climate Change: Comparison of Acoustic

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    Ocean Climate Change: Comparison of Acoustic Tomography, Satellite Altimetry, and Modeling The ATOC to thermal expansion. Interpreting climate change signals from fluctuations in sea level is therefore in the advective heat flux. Changes in oceanic heat storage are a major expected element of future climate shifts

  8. High stability wavefront reference source

    DOE Patents [OSTI]

    Feldman, M.; Mockler, D.J.

    1994-05-03T23:59:59.000Z

    A thermally and mechanically stable wavefront reference source which produces a collimated output laser beam is disclosed. The output beam comprises substantially planar reference wavefronts which are useful for aligning and testing optical interferometers. The invention receives coherent radiation from an input optical fiber, directs a diverging input beam of the coherent radiation to a beam folding mirror (to produce a reflected diverging beam), and collimates the reflected diverging beam using a collimating lens. In a class of preferred embodiments, the invention includes a thermally and mechanically stable frame comprising rod members connected between a front end plate and a back end plate. The beam folding mirror is mounted on the back end plate, and the collimating lens mounted to the rods between the end plates. The end plates and rods are preferably made of thermally stable metal alloy. Preferably, the input optical fiber is a single mode fiber coupled to an input end of a second single mode optical fiber that is wound around a mandrel fixedly attached to the frame of the apparatus. The output end of the second fiber is cleaved so as to be optically flat, so that the input beam emerging therefrom is a nearly perfect diverging spherical wave. 7 figures.

  9. http://hfs.sagepub.com/ Ergonomics Society

    E-Print Network [OSTI]

    Parasuraman, Raja

    http://hfs.sagepub.com/ Ergonomics Society of the Human Factors and Human Factors: The Journal http: 411Human Factors: The Journal of the Human Factors and Ergonomics Society Ericka Rovira and Raja and Ergonomics Society can be found at:Society Human Factors: The Journal of the Human Factors and Ergonomics

  10. http://hfs.sagepub.com/ Ergonomics Society

    E-Print Network [OSTI]

    Kaber, David B.

    http://hfs.sagepub.com/ Ergonomics Society of the Human Factors and Human Factors: The Journal http.1177/0018720813495279 2013 published online 8 JulyHuman Factors: The Journal of the Human Factors and Ergonomics Society Yu://www.sagepublications.com On behalf of: Human Factors and Ergonomics Society can be found at:Society Human Factors: The Journal

  11. http://hfs.sagepub.com/ Ergonomics Society

    E-Print Network [OSTI]

    Parasuraman, Raja

    http://hfs.sagepub.com/ Ergonomics Society of the Human Factors and Human Factors: The Journal http: 517Human Factors: The Journal of the Human Factors and Ergonomics Society and Raja Parasuraman Peter A of: Human Factors and Ergonomics Society can be found at:Society Human Factors: The Journal

  12. SOCIETY AWARDS PRELIM APPLICATION GUIDELINES 06/13 SOCIETY AWARDS

    E-Print Network [OSTI]

    Rambaut, Andrew

    and other cultural attractions; arts agencies; production companies; schools; local education authorities need. Society Awards projects should cover at least one of the following areas: · examine the social foundation dedicated to achieving extraordinary improvements in human and animal health. Allied

  13. SOCIETY AWARDS PRELIM APPLICATION GUIDELINES 03/14 SOCIETY AWARDS

    E-Print Network [OSTI]

    Rambaut, Andrew

    and other cultural attractions; arts agencies; production companies; schools; local education authorities need. Society Awards projects should cover at least one of the following areas: · examine the social foundation dedicated to achieving extraordinary improvements in human and animal health. Allied

  14. National Environmental Information Infrastructure Reference Architecture

    E-Print Network [OSTI]

    Greenslade, Diana

    National Environmental Information Infrastructure Reference Architecture Consultation Draft Environmental Information Infrastructure Reference Architecture: Consultation Draft Environmental Information Architecture: Consultation Draft, Bureau of Meteorology, Canberra, Australia, pp. 52. With the exception

  15. Cross-References Applications of Nanofluidics

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    Cross-References Applications of Nanofluidics Electrokinetic Fluid Flow in Nanostructures Micro/Nano Flow Characterization Techniques Nanochannels for Nanofluidics: Fabrication Aspects Rapid Electrokinetic Patterning References 1. Conlisk, A.T.: Essentials of Micro and Nanofluidics with Application

  16. Economic Impact of Standard Reference Materials

    E-Print Network [OSTI]

    00-1 Planning Report Economic Impact of Standard Reference Materials for Sulfur in Fossil Fuels Administration #12;February 2000 Economic Impact of Standard Reference Materials for Sulfur in Fossil Fuels Final-006 Economic Impact of Standard Reference Materials for Sulfur in Fossil Fuels Final Report February 2000

  17. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28T23:59:59.000Z

    The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.

  18. Transactions of the American Fisheries Society 140:108122, 2011 C American Fisheries Society 2011

    E-Print Network [OSTI]

    bycatch and water pollution, may be a concern. Our results also illustrate the utility of acoustic with acoustic transmitters on their spawning grounds and in known nonspawning aggregation sites and examined

  19. Chinese Renewable Energy Society CRES formerly Chinese Solar...

    Open Energy Info (EERE)

    CRES formerly Chinese Solar Energy Society Jump to: navigation, search Name: Chinese Renewable Energy Society (CRES) (formerly Chinese Solar Energy Society) Place: Beijing, Beijing...

  20. Presented at the 161st Meeting of the Acoustical Society of America

    E-Print Network [OSTI]

    Story, Brad H.

    production is the temporal overlap of the different vocal tract movements that produce vowels and consonants) I-S(mm) ubu /A/ /u/ Conversion of pellet positions to cross-distances -7 -6 -5 -4 -3 -2 -1 0 0 0.5 1

  1. Acoustic data transmission through a drillstring

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    1992-01-01T23:59:59.000Z

    A method and apparatus for acoustically transmitting data along a drillstring is presented. In accordance with one embodiment of the present invention, acoustic data signals are conditioned to counteract distortions caused by the drillstring. Preferably, this conditioning step comprises multiplying each frequency component of the data signal by exp (-ikL) where L is the transmission length of the drillstring, k is the wave number in the drillstring at the frequency of each component and i is (-1).sup.1/2. In another embodiment of this invention, data signals having a frequency content in at least one passband of the drillstring are generated preferably traveling in only one direction (e.g., up the drillstring) while echoes in the drillstring resulting from the data transmission are suppressed.

  2. Acoustic data transmission through a drillstring

    DOE Patents [OSTI]

    Drumheller, D.S.

    1992-07-07T23:59:59.000Z

    A method and apparatus for acoustically transmitting data along a drillstring are presented. In accordance with one embodiment of the present invention, acoustic data signals are conditioned to counteract distortions caused by the drillstring. Preferably, this conditioning step comprises multiplying each frequency component of the data signal by exp ([minus]ikL) where L is the transmission length of the drillstring, k is the wave number in the drillstring at the frequency of each component and i is ([minus]1)[sup 1/2]. In another embodiment of this invention, data signals having a frequency content in at least one passband of the drillstring are generated preferably traveling in only one direction (e.g., up the drillstring) while echoes in the drillstring resulting from the data transmission are suppressed. 20 figs.

  3. Development of a geothermal acoustic borehole televiewer

    SciTech Connect (OSTI)

    Heard, F.E.; Bauman, T.J.

    1983-08-01T23:59:59.000Z

    Most geothermal wells are drilled in hard rock formations where fluid flow is through systems of open fractures. Productivity of these wells is usually determined by the extent of intersection of the wellbore with the fracture system. A need exists for fracture mapping methods and tools which can operate in a geothermal environment. In less hostile environments, the acoustic borehole televiewer has been shown to be a useful tool for determining location, orientation, and characterization of fractures as they intersect the borehole and for general wellbore and casing inspection. The development conducted at Sandia National Laboratories to adapt an acoustic borehole televiewer for operation in a geothermal environment is described. The modified instrument has been successfully tested at temperatures as high as 280/sup 0/C and pressures up to 5000 psi, and used successfully to map fractures and casing damage in geothermal wells.

  4. Pulse combusted acoustic agglomeration apparatus and process

    DOE Patents [OSTI]

    Mansour, Momtaz N. (Columbia, MD)

    1993-01-01T23:59:59.000Z

    An improved apparatus and process for removal of particulates entrained in a gas stream are provided. The removal process employs a pulse combustor to provide an acoustic pressure wave to acoustically enhance bimodal agglomeration of particulates which may be collected and removed using a conventional separation apparatus. A particulate having a size different from the size of the particulate in the gas stream to be cleaned is introduced into the system to effectuate the bimodal process. The apparatus may be employed as a direct fired system for improved operation of gas-operated equipment such as a gas turbine, or may, alternatively, be employed as an add-on subsystem for combustion exhaust clean-up. Additionally, the added particulate may be a sorbent for effecting sorption of other contaminants such as sulfur. Various other particulates for contaminant removal may also be introduced into the system as exemplified by alkali-gettering agents.

  5. Pulse combusted acoustic agglomeration apparatus and process

    DOE Patents [OSTI]

    Mansour, Momtaz N. (Columbia, MD); Chandran, Ravi (Ellicott City, MD)

    1994-01-01T23:59:59.000Z

    An improved apparatus and process for removal of particulates entrained in a gas stream are provided. The removal process employs a pulse combustor to provide an acoustic pressure wave to acoustically enhance agglomeration of particulates which may be collected and removed using a conventional separation apparatus. The apparatus may be employed as a direct fired system for improved operation of gas-operated equipment such as a gas turbine, or may, alternatively, be employed as an add-on subsystem for combustion exhaust clean-up. Additionally, added particulates may include a sorbent for effecting sorption of other contaminants such as sulfur. Various other particulates for contaminant removal may also be introduced into the system as exemplified by alkali-gettering agents.

  6. Electromagnetic effects on geodesic acoustic modes

    SciTech Connect (OSTI)

    Bashir, M. F., E-mail: frazbashir@yahoo.com [Salam Chair in Physics, G. C. University Lahore, Katchery Road, Lahore 54000 (Pakistan); Department of Physics, G. C. University Lahore, Katchery Road, Lahore 54000 (Pakistan); Smolyakov, A. I. [University of Saskatchewan, 116 Science Place, Saskatoon S7N 5E2 (Canada); Institute of Tokamak Physics, NRC “Kurchatov Institute,” 123182 Moscow (Russian Federation); Elfimov, A. G. [Institute of Physics, University of São Paulo, São Paulo 05508-090 (Brazil); Melnikov, A. V. [Institute of Tokamak Physics, NRC “Kurchatov Institute,” 123182 Moscow (Russian Federation); National Research Nuclear University MEPhI, 115409, Moscow (Russian Federation); Murtaza, G. [Visiting Professor, Department of Physics, Quaid-e-Azam University, Islamabad (Pakistan)

    2014-08-15T23:59:59.000Z

    By using the full electromagnetic drift kinetic equations for electrons and ions, the general dispersion relation for geodesic acoustic modes (GAMs) is derived incorporating the electromagnetic effects. It is shown that m?=?1 harmonic of the GAM mode has a finite electromagnetic component. The electromagnetic corrections appear for finite values of the radial wave numbers and modify the GAM frequency. The effects of plasma pressure ?{sub e}, the safety factor q, and the temperature ratio ? on GAM dispersion are analyzed.

  7. Acoustic resonance spectroscopy in nuclear safeguards

    SciTech Connect (OSTI)

    Olinger, C.T.; Lyon, M.J.; Stanbro, W.D.; Mullen, M.F.; Sinha, D.N.

    1993-08-01T23:59:59.000Z

    Objects resonate at specific frequencies when mechanically excited. The specific resonance frequencies are a function of shape, size, material of construction, and contents of the object. This paper discusses the use of acoustic resonance spectroscopy (ARS) to monitor containers and detect tampering. Evaluation of this technique is based on simulated storage simulations. Although these simulations show promise for this application of ARS, final evaluation will require actual field testing.

  8. Acoustic resonance spectroscopy in nuclear safeguards

    SciTech Connect (OSTI)

    Olinger, C.T.; Lyon, M.J.; Stanbro, W.D.; Mullen, M.F.; Sinha, D.N. [Los Alamos National Lab., NM (United States)

    1993-12-31T23:59:59.000Z

    Objects resonate at specific frequencies when mechanically excited. The specific resonance frequencies are a function of shape, size, material of construction, and contents of the object. This paper discusses the use of acoustic resonance spectroscopy (ARS) to monitor containers and detect tampering. Evaluation of this technique is based on simulated storage situations. Although these simulations show promise for this application of ARS, final evaluation will require actual field testing.

  9. Acoustic measurement of potato cannon velocity

    E-Print Network [OSTI]

    Courtney, M; Courtney, Amy; Courtney, Michael

    2006-01-01T23:59:59.000Z

    This article describes measurement of potato cannon velocity with a digitized microphone signal. A microphone is attached to the potato cannon muzzle and a potato is fired at an aluminum target about 10 m away. The potato's flight time can be determined from the acoustic waveform by subtracting the time in the barrel and time for sound to return from the target. The potato velocity is simply the flight distance divided by the flight time.

  10. Underwater Acoustic Detection of Ultra High Energy Neutrinos

    E-Print Network [OSTI]

    V. Niess; V. Bertin

    2006-04-21T23:59:59.000Z

    We investigate the acoustic detection method of 10^18-20 eV neutrinos in a Mediterranean Sea environment. The acoustic signal is re-evaluated according to dedicated cascade simulations and a complex phase dependant absorption model, and compared to previous studies. We detail the evolution of the acoustic signal as function of the primary shower characteristics and of the acoustic propagation range. The effective volume of detection for a single hydrophone is given taking into account the limitations due to sea bed and surface boundaries as well as refraction effects. For this 'benchmark detector' we present sensitivity limits to astrophysical neutrino fluxes, from which sensitivity bounds for a larger acoustic detector can be derived. Results suggest that with a limited instrumentation the acoustic method would be more efficient at extreme energies, above 10^20 eV.

  11. ILC cryogenic systems reference design

    SciTech Connect (OSTI)

    Peterson, T.J.; Geynisman, M.; Klebaner, A.; Theilacker, J.; /Fermilab; Parma, V.; Tavian, L.; /CERN

    2008-01-01T23:59:59.000Z

    A Global Design Effort (GDE) began in 2005 to study a TeV scale electron-positron linear accelerator based on superconducting radio-frequency (RF) technology, called the International Linear Collider (ILC). In early 2007, the design effort culminated in a reference design for the ILC, closely based on the earlier TESLA design. The ILC will consist of two 250 GeV linacs, which provide positron-electron collisions for high energy physics research. The particle beams will be accelerated to their final energy in superconducting niobium RF cavities operating at 2 kelvin. At a length of about 12 km each, the main linacs will be the largest cryogenic systems in the ILC. Positron and electron sources, damping rings, and beam delivery systems will also have a large number and variety of other superconducting RF cavities and magnets, which require cooling at liquid helium temperatures. Ten large cryogenic plants with 2 kelvin refrigeration are envisioned to cool the main linacs and the electron and positron sources. Three smaller cryogenic plants will cool the damping rings and beam delivery system components predominately at 4.5 K. This paper describes the cryogenic systems concepts for the ILC.

  12. Observation of a single-beam gradient force acoustical trap for elastic particles: acoustical tweezers

    E-Print Network [OSTI]

    Baresch, Diego; Marchiano, Régis

    2014-01-01T23:59:59.000Z

    The ability to manipulate matter precisely is critical for the study and development of a large variety of systems. Optical tweezers are excellent tools to handle particles ranging in size from a few micrometers to hundreds of nanometers but become inefficient and damaging on larger objects. We demonstrate for the first reported time the trapping of elastic particles by the large gradient force of a single acoustical beam in three dimensions. We show that at equal power, acoustical forces overtake by 8 orders of magnitude that of optical ones on macroscopic objects. Acoustical tweezers can push, pull and accurately control both the position of the particle and the forces exerted under damage-free conditions. The large spectrum of frequencies covered by coherent ultrasonic sources will provide a wide variety of manipulation possibilities from macro- to microscopic length scales. We believe our observations improve the prospects for wider use of non-contact manipulation in biology, biophysics, microfluidics and...

  13. Scanning acoustic microscopy for mapping the microstructure of soft materials

    E-Print Network [OSTI]

    N. G. Parker; M. J. W. Povey

    2009-04-30T23:59:59.000Z

    Acoustics provides a powerful modality with which to 'see' the mechanical properties of a wide range of elastic materials. It is particularly adept at probing soft materials where excellent contrast and propagation distance can be achieved. We have constructed a scanning acoustic microscope capable of mapping the microstructure of such materials. We review the general principles of scanning acoustic microscopy and present new examples of its application in imaging biological matter, industrial materials and particulate systems.

  14. Electret Acoustic Transducer Array For Computerized Ultrasound Risk Evaluation System

    DOE Patents [OSTI]

    Moore, Thomas L. (Livermore, CA); Fisher, Karl A. (Brentwood, CA)

    2005-08-09T23:59:59.000Z

    An electret-based acoustic transducer array is provided and may be used in a system for examining tissue. The acoustic transducer array is formed with a substrate that has a multiple distinct cells formed therein. Within each of the distinct cells is positioned an acoustic transducing element formed of an electret material. A conductive membrane is formed over the distinct cells and may be flexible.

  15. References R-3 ANS 1986. Glossary of Terms in Nuclear Science and Technology, American Nuclear Society.

    E-Print Network [OSTI]

    Pennycook, Steve

    Facilities, Guide for R (1993), American National Standards Institute. Baker, D. A., and J. K. Soldat 1993

  16. acoustical engineering: Topics by E-print Network

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

    electricity Thermoacoustic Energy Conversion Waste or prime heat soundThermoacoustic Stirling Engine -- An acoustic amplifier: ambient heat exchanger (water) stacked Lee, Dongwon...

  17. acoustic field application: Topics by E-print Network

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

    INVERSION FOR STATIC AND DYNAMIC CHARACTERIZATION OF A CO2 EOR PROJECT, POSTLE FIELD, OKLAHOMA by Alana Robinson 12;ii 12;iii ABSTRACT Seismic inversion for acoustic...

  18. Independent trapping and manipulation of microparticles using dexterous acoustic tweezers

    SciTech Connect (OSTI)

    Courtney, Charles R. P., E-mail: c.r.p.courtney@bath.ac.uk [Department of Mechanical Engineering, University of Bath, Bath (United Kingdom); Demore, Christine E. M.; Wu, Hongxiao; Cochran, Sandy [Institute of Medical Science and Technology, University of Dundee, Dundee (United Kingdom); Grinenko, Alon; Wilcox, Paul D.; Drinkwater, Bruce W. [Department of Mechanical Engineering, University of Bristol, Bristol (United Kingdom)

    2014-04-14T23:59:59.000Z

    An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap particles in larger regions than is possible with first-order traps. The acoustic tweezers consist of a circular 64-element ultrasonic array operating at 2.35?MHz which generates ultrasonic pressure fields in a millimeter-scale fluid-filled chamber. The manipulation capabilities were demonstrated experimentally with 45 and 90-?m-diameter polystyrene spheres. These capabilities bring the dexterity of acoustic tweezers substantially closer to that of optical tweezers.

  19. acoustically driven microcentrifugation: Topics by E-print Network

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

    The (more) Philips, Scott M., 1980- 2007-01-01 9 Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics CiteSeer Summary: This article reviews...

  20. acoustic wave total: Topics by E-print Network

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

    Open Access Theses and Dissertations Summary: ??Surface acoustic wave-based (SAW) microfluidics attracts attention from microfluidic research community due to its simple...

  1. Data Mining Applied to Acoustic Bird Species Recognition

    E-Print Network [OSTI]

    Vilches, Erika; Escobar, Ivan A.; Vallejo, E E; Taylor, C E

    2006-01-01T23:59:59.000Z

    I. ; Frank, E. ; Data Mining: Practical Machine LearningData Mining Applied to Acoustic Bird Species Recognitionthe application of data mining techniques to the problem of

  2. acoustic wave secondary: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 10 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  3. acoustic sources numerical: Topics by E-print Network

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

    solitons CERN Preprints Summary: Acoustic solitons can be obtained by considering the propagation of large amplitude sound waves across a set of Helmholtz resonators. The model...

  4. acoustic wave atomization: Topics by E-print Network

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

    of fluid and acoustic computations, hybrid methodologies still Kohlenbach, Ulrich 12 Propagation of atomic matter waves inside an atom wave guide Quantum Physics (arXiv)...

  5. acoustic wave chemical: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 11 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  6. acoustic wave monitoring: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 14 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  7. acoustic gravity waves: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 29 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  8. acoustic solitary waves: Topics by E-print Network

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

    dust acoustic solitary waves in a dusty plasma CERN Preprints Summary: The excitation and propagation of finite amplitude low frequency solitary waves are investigated in an Argon...

  9. acoustic wave actuated: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 17 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  10. acoustic waves: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 9 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  11. acoustic wave induced: Topics by E-print Network

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

    inside the drop. Brunet, P; Matar, O Bou; Zoueshtiagh, F 2010-01-01 5 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  12. acoustic phonon scattering: Topics by E-print Network

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

    type of phononic crystals manufactured Institute of Physics. DOI: 10.10631.2167794 The propagation of acoustic waves in periodic composite Deymier, Pierre 19 Carrier and Phonon...

  13. acoustic wave sensing: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 12 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  14. acoustic wave vapor: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 9 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  15. acoustic wave integrated: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 17 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  16. acoustic wave oxygen: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 9 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  17. acoustic wave biosensor: Topics by E-print Network

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

    the deep ocean, they are refracted by inhomogeneities Tomsovic, Steve 11 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  18. acoustic cavitation bubble: Topics by E-print Network

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

    G. Simon; M. T. Levinsen 2002-09-11 204 Analytical and experimental investigations of gas turbine model combustor acoustics operated at atmospheric pressure Physics Websites...

  19. acoustic emission characterization: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  20. acoustic emission weld: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  1. acoustic emission characteristics: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  2. acoustic emission tests: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  3. acoustic emission analysis: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  4. acoustic experience shapes: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  5. acoustic emission study: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  6. acoustic emission signal: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  7. alloy acoustic emission: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  8. active acoustic emission: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  9. acoustic emission studies: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  10. acoustic propagation experiment: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  11. acoustic emission sensors: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  12. acoustic emission spectroscopy: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  13. acoustic emission monitoring: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  14. acoustic emission sensor: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  15. acoustic emissions: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  16. acoustic emission signals: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  17. acoustic emission parameters: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  18. acoustic emission: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  19. acoustic emission testing: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  20. acoustic emission techniques: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  1. acoustic emission method: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  2. acoustic emission technology: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  3. acoustic cardiographic assessment: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  4. acoustic emission technique: Topics by E-print Network

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

    methods such as acoustic emission as a global method associated to a local method such as TOFD technique which permits an accurate characterization and precise sizing of flaw...

  5. Finite Element Methods for Nonlinear Acoustics in Fluids

    E-Print Network [OSTI]

    The non- linear terms in these wave equations imply that the sound speed ... ics, the finite element formulation of nonlinear acoustic equations for fluids has.

  6. acoustic wave devices: Topics by E-print Network

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

    Baron, G. Martin, T. Laroche, and S. Ballandras FEMTO Paris-Sud XI, Universit de 7 Design and Fabrication of Acoustic Wave Actuated Microgenerator for Portable Electronic...

  7. acoustic wave device: Topics by E-print Network

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

    Baron, G. Martin, T. Laroche, and S. Ballandras FEMTO Paris-Sud XI, Universit de 7 Design and Fabrication of Acoustic Wave Actuated Microgenerator for Portable Electronic...

  8. acoustic source localization: Topics by E-print Network

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

    Dan 113 2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics October 16-19, 2011, New Paltz, NY INFORMED SOURCE SEPARATION: UNDERDETERMINED SOURCE SIGNAL...

  9. acoustic environments prediction: Topics by E-print Network

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

    1998, 2001 production by small animals limit the efficiency of sound communication (Bennet-Clark, 1998; Larsen Elias, Damian Octavio 135 Acoustic Source Localization Using the...

  10. acoustic wave properties: Topics by E-print Network

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

    1998, 2001 production by small animals limit the efficiency of sound communication (Bennet-Clark, 1998; Larsen Elias, Damian Octavio 136 Effect of drift-acoustic waves on...

  11. acoustic mate recognition: Topics by E-print Network

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

    occurs when an expected phone is pronounced as a different one, which leads to erroneous recognition. Acoustic confusion occurs when the pronounced phone is found to lie...

  12. acoustic streaming devices: Topics by E-print Network

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

    frequency and the acoustic contrast factor, while it is inversely proportional to the kinematic viscosity. Barnkob, Rune; Laurell, Thomas; Bruus, Henrik 2012-01-01 27...

  13. acoustic power absorption: Topics by E-print Network

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

    The distribution of acoustic power over sunspots shows an enhanced absorption near the umbra--penumbra boundary. Earlier studies revealed that the region of enhanced absorption...

  14. acoustic field evaluation: Topics by E-print Network

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

    The distribution of acoustic power over sunspots shows an enhanced absorption near the umbra--penumbra boundary. Earlier studies revealed that the region of enhanced absorption...

  15. acoustic field produced: Topics by E-print Network

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

    The distribution of acoustic power over sunspots shows an enhanced absorption near the umbra--penumbra boundary. Earlier studies revealed that the region of enhanced absorption...

  16. acoustic focusing devices: Topics by E-print Network

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

    in suitable environment, therefore to produce maximum efficiency. In this paper, we present an acoustic wave actuated micro-generator for power system by using the energy of...

  17. acoustic particle manipulator: Topics by E-print Network

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

    fields. Two types of manipulations are considered: (1) front-pushing, where the micro-robot pushes Sitti, Metin 38 Particle Filter Design using Importance Sampling for Acoustic...

  18. acoustic doppler current: Topics by E-print Network

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

    from Vibro-Acoustic Heart Signals: Correlation. In this work, heart sounds, apical pulse, and arterial pulse signals were simultaneously acquired, along analysis of...

  19. acoustic space development: Topics by E-print Network

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

    paper Liu, Yijun 10 ACOUSTIC SPACE DIMENSIONALITY SELECTION AND COMBINATION USING THE MAXIMUM ENTROPY PRINCIPLE Computer Technologies and Information Sciences Websites Summary:...

  20. acoustic testing: Topics by E-print Network

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

    sets in the field cricket genus Robillard, Tony 3 EXPERIMENTAL TESTING OF THE BLIND OCEAN ACOUSTIC TOMOGRAPHY CONCEPT Engineering Websites Summary: EXPERIMENTAL TESTING OF THE...

  1. Soundfield simulation : the prediction and validation of acoustical behavior with compute models

    E-Print Network [OSTI]

    Saad, Omar, 1974-

    2004-01-01T23:59:59.000Z

    In the past, acoustical consultants could only try to convince the client/architect that with calculations and geometrical plots they could create an acoustically superb space. Now, by modeling the significant acoustical ...

  2. alv-x1 liftoff acoustic: Topics by E-print Network

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

    The reduction of weight of multi 23 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  3. acoustic wave-assisted scanning: Topics by E-print Network

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

    gent transportation systems (ITS 17 UNIVERSITY OF CALIFORNIA, SAN DIEGO Acoustic Daylight: passive acoustic imaging Geosciences Websites Summary: UNIVERSITY OF CALIFORNIA, SAN...

  4. E-Print Network 3.0 - acoustic properties Sample Search Results

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

    the signal properties. To measure acoustics... Ecological & Environmental Acoustic Remote Sensor (EcoEARS) Application for Long-Term Monitoring... is in the area of...

  5. Acoustical and Noise Control Criteria and Guidelines for Building Design and Operations

    E-Print Network [OSTI]

    Evans, J. B.; Himmel, C. N.

    Noise, vibration and acoustical design, construction, commissioning and operation practices influence building cost, efficiency, performance and effectiveness. Parameters for structural vibration, building systems noise, acoustics and environmental...

  6. Shaping Environmental Justice: Applying Science, Technology, and Society Boundary Work

    E-Print Network [OSTI]

    Huang, Chih-Tung

    2012-01-01T23:59:59.000Z

    Applying Science, Technology and Society Boundary Work Chih-the STS (Science, Technology and Society) study as boundary-

  7. A Short Reference Grammar of Standard Slovene

    E-Print Network [OSTI]

    Greenberg, Marc L.

    2006-01-01T23:59:59.000Z

    A reference grammar of the Slovene language designed for advanced-level language users and linguists to compare semantic categories across languages.

  8. Sandia National Laboratories: Reference Model 3

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

    Reference Model 3 Sandia, NREL Release Wave Energy Converter Modeling and Simulation Code: WEC-Sim On July 29, 2014, in Computational Modeling & Simulation, Energy, News, News &...

  9. FAQS Reference Guide – General Technical Base

    Broader source: Energy.gov [DOE]

    This reference guide addresses the competency statements in the December 2007 edition of DOE-STD-1146-2007, General Technical Base Functional Area Qualification Standard.

  10. Sandia National Laboratories: Reference Model Project

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

    marine hydrokinetic (MHK) reference models (RMs) for wave energy converters and tidal, ocean, and river current energy converters. The RMP team includes a partnership between...

  11. Sandia National Laboratories: marine hydrokinetic reference models

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

    marine hydrokinetic (MHK) reference models (RMs) for wave energy converters and tidal, ocean, and river current energy converters. The RMP team includes a partnership between...

  12. Spring 2014 ME 720 Acoustics II ENG ME 720 Acoustics II

    E-Print Network [OSTI]

    Lin, Xi

    of the wave equation using Green's functions and compact Green's functions; retarded potentials; energy flux of fluid mechanics and acoustics should aim to build a library of classic texts. These are usually classics are now out of print, but are often available from libraries and online sources. Course grading

  13. The Gulf Coast Energy Conservation Society

    E-Print Network [OSTI]

    Faulkner, C. R.

    1979-01-01T23:59:59.000Z

    membership, recent meeting topics, and examples of some benefits to society members are also presented. The Gulf Coast Energy Conservation Society was the outcome of informal meetings between Amoco, Union Carbide, and Monsanto back in 1973 and has grown...

  14. CROATIAN MATHEMATICAL SOCIETY 2nd CROATIAN CONGRESS

    E-Print Network [OSTI]

    Rogina, Mladen

    CROATIAN MATHEMATICAL SOCIETY 2nd CROATIAN CONGRESS OF MATHEMATICS Zagreb, Croatia June 15{17, 2000 of the Republic of Croatia. ORGANIZERS Croatian Mathematical Society Zvonimir #20; Siki#19;c (president) Hrvoje

  15. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY

    E-Print Network [OSTI]

    Willenbring, Jeb F.

    fellowship. c 2002 American Mathematical Society 4393 #12;4394 JEB F. WILLENBRING on V , under the usual

  16. Sound Science: Taking Action with Acoustics

    SciTech Connect (OSTI)

    Sinha, Dipen

    2014-07-16T23:59:59.000Z

    From tin whistles to sonic booms, sound waves interact with each other and with the medium through which they travel. By observing these interactions, we can identify substances that are hidden in sealed containers and obtain images of buried objects. By manipulating the ability of sound to push matter around, we can create novel structures and unique materials. Join the Lab's own sound hound, Dipen Sinha, as he describes how he uses fundamental research in acoustics for solving problems in industry, security and health.

  17. Acoustic resonator and method of making same

    DOE Patents [OSTI]

    Kline, G.R.; Lakin, K.M.

    1985-03-05T23:59:59.000Z

    A method is disclosed of fabricating an acoustic wave resonator wherein all processing steps are accomplished from a single side of said substrate. The method involves deposition of a multi-layered Al/AlN structure on a GaAs substrate followed by a series of fabrication steps to define a resonator from said composite. The resulting resonator comprises an AlN layer between two Al layers and another layer of AlN on an exterior of one of said Al layers. 4 figs.

  18. Equivalence Principle and the Baryon Acoustic Peak

    E-Print Network [OSTI]

    Baldauf, Tobias; Simonovi?, Marko; Zaldarriaga, Matias

    2015-01-01T23:59:59.000Z

    We study the dominant effect of a long wavelength density perturbation $\\delta(\\lambda_L)$ on short distance physics. In the non-relativistic limit, the result is a uniform acceleration, fixed by the equivalence principle, and typically has no effect on statistical averages due to translational invariance. This same reasoning has been formalized to obtain a "consistency condition" on the cosmological correlation functions. In the presence of a feature, such as the acoustic peak at $l_{\\rm BAO}$, this naive expectation breaks down for $\\lambda_Lpower spectrum. Finally, the success of BAO reconstruction schemes is argue...

  19. Sound Science: Taking Action with Acoustics

    ScienceCinema (OSTI)

    Sinha, Dipen

    2014-07-21T23:59:59.000Z

    From tin whistles to sonic booms, sound waves interact with each other and with the medium through which they travel. By observing these interactions, we can identify substances that are hidden in sealed containers and obtain images of buried objects. By manipulating the ability of sound to push matter around, we can create novel structures and unique materials. Join the Lab's own sound hound, Dipen Sinha, as he describes how he uses fundamental research in acoustics for solving problems in industry, security and health.

  20. Acoustic resonator and method of making same

    DOE Patents [OSTI]

    Kline, G.R.; Lakin, K.M.

    1983-10-13T23:59:59.000Z

    A method of fabricating an acoustic wave resonator wherein all processing steps are accomplished from a single side of said substrate. The method involves deposition of a multi-layered Al/AlN structure on a GaAs substrate followed by a series of fabrication steps to define a resonator from said composite. The resulting resonator comprises an AlN layer between two Al layers and another layer of AlN on an exterior of one of said Al layers.

  1. Multipurpose Acoustic Sensor for Downhole Fluid Monitoring

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement of the NationalPennsylvaniaTemperatureMultipurpose Acoustic

  2. acoustic detection test: Topics by E-print Network

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

    acoustic detection test First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Feasibility of acoustic...

  3. Resonant acoustic transducer system for a well drilling string

    DOE Patents [OSTI]

    Nardi, Anthony P. (Burlington, MA)

    1981-01-01T23:59:59.000Z

    For use in transmitting acoustic waves propated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting a resonant operation in the desired low frequency range.

  4. Resonant acoustic transducer system for a well drilling string

    DOE Patents [OSTI]

    Kent, William H. (Westford, MA); Mitchell, Peter G. (Concord, MA)

    1981-01-01T23:59:59.000Z

    For use in transmitting acoustic waves propagated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting resonant operation in the desired low frequency range.

  5. A decade of acoustic thermometry in the North Pacific Ocean

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    A decade of acoustic thermometry in the North Pacific Ocean B. D. Dushaw,1 P. F. Worcester,2 W. H of acoustic thermometry in the North Pacific Ocean, J. Geophys. Res., 114, C07021, doi:10.1029/2008JC005124. 1 of basin-scale heat content in the northeast Pacific Ocean were made using a broadband 133-Hz source

  6. Final evaluation of the acoustics of the APS conference center

    SciTech Connect (OSTI)

    Restrepo, J.M.

    1995-11-01T23:59:59.000Z

    Along with a description of the changes that I prescribed on the original design, this report is an evaluation of the acoustical properties of the new Advanced Photon Source Auditorium at Argonne National Laboratory. Acoustical deficiencies in the hall are presented with several options for their expedient and economical solution.

  7. Exploiting the BandwidthDistance Relationship in Underwater Acoustic Networks

    E-Print Network [OSTI]

    Stojanovic, Milica

    (UWASNs) may also be augmented with autonomous underwater vehicles (AUVs); for example, this unmanned1 Exploiting the Bandwidth­Distance Relationship in Underwater Acoustic Networks Paolo Casari consumption, and transmission delay in a Underwater Wireless Acoustic Sensor Network (UWASN). We compare

  8. Acoustic wave propagation in two-phase heterogeneous porous media

    E-Print Network [OSTI]

    J. I. Osypik; N. I. Pushkina; Ya. M. Zhileikin

    2015-03-19T23:59:59.000Z

    The propagation of an acoustic wave through two-phase porous media with spatial variation in porosity is studied. The evolutionary wave equation is derived, and the propagation of an acoustic wave is numerically analyzed in application to marine sediments with various physical parameters.

  9. ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS

    E-Print Network [OSTI]

    Buffa, Annalisa

    ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS A. BUFFA AND S. SAUTER in the stability and convergence estimates attains its minumum. Key words. Acoustic scattering, Galerkin boundary discretizations for the Helmholtz problem suffer from the pollution effect, i.e., the constants in the Galerkin

  10. Three-Dimensional Routing in Underwater Acoustic Sensor Networks

    E-Print Network [OSTI]

    Pompili, Dario

    Three-Dimensional Routing in Underwater Acoustic Sensor Networks Dario Pompili and Tommaso Melodia applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention in a 3D underwa- ter acoustic sensor network is investigated at the network layer, by considering

  11. Fresnel approximations for acoustic fields of rectangularly symmetric sources

    E-Print Network [OSTI]

    Mast, T. Douglas

    Fresnel approximations for acoustic fields of rectangularly symmetric sources T. Douglas Masta for determining the acoustic fields of rectangularly symmetric, baffled, time-harmonic sources under the Fresnel. The expressions presented are generalized to three different Fresnel approximations that correspond, respectively

  12. Autonomous Data Collection from Underwater Sensor Networks using Acoustic Communication

    E-Print Network [OSTI]

    Sukhatme, Gaurav S.

    for an autonomous underwater vehicle (AUV) to collect data from an underwater sensor network. The sensors. A potential solution is the use of a mobile autonomous under- water vehicle (AUV) equipped with an acousticAutonomous Data Collection from Underwater Sensor Networks using Acoustic Communication Geoffrey A

  13. An Advanced Channel Framework for Improved Underwater Acoustic Network Simulations

    E-Print Network [OSTI]

    Zhou, Shengli

    such as pollution, climate change and severe weather events is rapidly increasing. At the same time, as ocean underwater sensors, vehicles and devices together using acoustic communication. Network protocol development operation. However, acoustic communication performance is dynamic and dependent upon the environment

  14. ACOUSTIC STUDY OF THE UD / GAMESA WIND TURBINE PROJECT

    E-Print Network [OSTI]

    Firestone, Jeremy

    ACOUSTIC STUDY OF THE UD / GAMESA WIND TURBINE PROJECT LEWES, DELAWARE January 2009 #12;ACOUSTIC STUDY OF THE UNIVERSITY OF DELAWARE / GAMESA WIND TURBINE PROJECT LEWES, DELAWARE Prepared for SUMMARY The University of Delaware (UD), Lewes proposes to locate a Gamesa G90 2.0MW wind turbine

  15. STOCHASTIC SEISMIC EMISSION FROM ACOUSTIC GLORIES AND THE QUIET SUN

    E-Print Network [OSTI]

    Braun, Douglas C.

    STOCHASTIC SEISMIC EMISSION FROM ACOUSTIC GLORIES AND THE QUIET SUN A.-C. DONEA1, C. LINDSEY2 and D; accepted 8 January 2000) Abstract. Helioseismic images of multipolar active regions show enhanced seismic'. The acoustic glories contain elements that sustain an average seismic emission 50% greater than similar

  16. Optimal control techniques for thermo-acoustic tomography Maitine Bergounioux

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . These hybrid systems use an electromagnetic pulse as an input and record ultrasound waves as an output-acoustic tomography (TAT) when the heating is realized by means of microwaves, and of photo-acoustic tomography (PAT) when optical heating is used. While in TAT waves of radio frequency range are used to trigger

  17. acoustic absorption peak: Topics by E-print Network

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

    acoustic absorption peak First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 On the variations of acoustic...

  18. FAQS Reference Guide - Quality Assurance | Department of Energy

    Office of Environmental Management (EM)

    Reference Guide - Quality Assurance FAQS Reference Guide - Quality Assurance This reference guide has been developed to address the competency statements in the April 2002 edition...

  19. PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY

    E-Print Network [OSTI]

    Rathbun, Julie A.

    r PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING NI\\SI\\National Aeronautit &II LPI #12;PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING Houston, Texas October contains abstracts that have been accepted for presentation at the Clay Minerals Society 28th Annual

  20. http://hfs.sagepub.com/ Ergonomics Society

    E-Print Network [OSTI]

    Parasuraman, Raja

    http://hfs.sagepub.com/ Ergonomics Society of the Human Factors and Human Factors: The Journal http: 381Human Factors: The Journal of the Human Factors and Ergonomics Society Raja Parasuraman: http://www.sagepublications.com On behalf of: Human Factors and Ergonomics Society can be found at

  1. The Paul R. Lipscomb Alumni Society Presents

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    The Paul R. Lipscomb Alumni Society Presents The Paul R. Lipscomb Alumni Society Presents speaker David R. Eyre, PhD #12;#12;Welcome to the 2012 Paul R. Lipscomb Alumni Society Graduate Research and continuity of our field. Thank you for being part of this memorable event. #12;Paul R. Lipscomb, MD Professor

  2. PROGRAM MANAGER CENTER FOR NANOTECHNOLOGY IN SOCIETY

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    PROGRAM MANAGER CENTER FOR NANOTECHNOLOGY IN SOCIETY AT ARIZONA STATE UNIVERSITY The Center for Nanotechnology in Society at Arizona State University (CNS-ASU) seeks a Program Manager to organize and coordinate activities, programs, and projects for the Center for Nanotechnology in Society (CNS) at Arizona

  3. Acoustic velocity measurements in materials using a regenerative method

    DOE Patents [OSTI]

    Laine, Edwin F. (Alamo, CA)

    1986-01-01T23:59:59.000Z

    Acoustic energy is propagated through earth material between an electro-acoustic generator and a receiver which converts the received acoustic energy into electrical signals. A closed loop is formed by a variable gain amplifier system connected between the receiver and the generator. The gain of the amplifier system is increased until sustained oscillations are produced in the closed loop. The frequency of the oscillations is measured as an indication of the acoustic propagation velocity through the earth material. The amplifier gain is measured as an indication of the acoustic attenuation through the earth materials. The method is also applicable to the non-destructive testing of structural materials, such as steel, aluminum and concrete.

  4. Acoustic-velocity measurements in materials using a regenerative method

    DOE Patents [OSTI]

    Laine, E.F.

    1982-09-30T23:59:59.000Z

    Acoustic energy is propatated through earth material between an electro-acoustic generator and a receiver which converts the received acoustic energy into electrical signals. A closed loop is formed by a variable gain amplifier system connected between the receiver and the generator. The gain of the amplifier system is increased until sustained oscillations are produced in the closed loop. The frequency of the oscillations is measured as an indication of the acoustic propagation velocity through the earth material. The amplifier gain is measured as an indication of the acoustic attenuation through the earth materials. The method is also applicable to the non-destructive testing of structural materials, such as steel, aluminum and concrete.

  5. Generation of Sound Bullets with a Nonlinear Acoustic Lens

    E-Print Network [OSTI]

    Alessandro Spadoni; Chiara Daraio

    2009-08-31T23:59:59.000Z

    Acoustic lenses are employed in a variety of applications, from biomedical imaging and surgery, to defense systems, but their performance is limited by their linear operational envelope and complexity. Here we show a dramatic focusing effect and the generation of large amplitude, compact acoustic pulses (sound bullets) in solid and fluid media, enabled by a tunable, highly nonlinear acoustic lens. The lens consists of ordered arrays of granular chains. The amplitude, size and location of the sound bullets can be controlled by varying static pre-compression on the chains. We support our findings with theory, numerical simulations, and corroborate the results experimentally with photoelasticity measurements. Our nonlinear lens makes possible a qualitatively new way of generating high-energy acoustic pulses, enabling, for example, surgical control of acoustic energy.

  6. Archived Reference Building Type: Primary school

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Building Type: Primary school

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  8. Physics 321 Accelerating Reference Frames II

    E-Print Network [OSTI]

    Hart, Gus

    Physics 321 Hour 25 Accelerating Reference Frames II Consider an accelerating train car Proof 0 and S is a frame rotating with angular velocity . Examples Handout rotation.nb #12;Physics 321 Hour 26 Accelerating Reference Frames III Velocities in Rotating Frames in S0 basis in S' basis In S' basis in S0 basis

  9. Archived Reference Building Type: Outpatient health care

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  10. Archived Reference Building Type: Outpatient health care

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  11. Degradation of a quantum reference frame

    E-Print Network [OSTI]

    Stephen D. Bartlett; Terry Rudolph; Robert W. Spekkens; Peter S. Turner

    2006-04-20T23:59:59.000Z

    We investigate the degradation of reference frames, treated as dynamical quantum systems, and quantify their longevity as a resource for performing tasks in quantum information processing. We adopt an operational measure of a reference frame's longevity, namely, the number of measurements that can be made against it with a certain error tolerance. We investigate two distinct types of reference frame: a reference direction, realized by a spin-j system, and a phase reference, realized by an oscillator mode with bounded energy. For both cases, we show that our measure of longevity increases quadratically with the size of the reference system and is therefore non-additive. For instance, the number of measurements that a directional reference frame consisting of N parallel spins can be put to use scales as N^2. Our results quantify the extent to which microscopic or mesoscopic reference frames may be used for repeated, high-precision measurements, without needing to be reset - a question that is important for some implementations of quantum computing. We illustrate our results using the proposed single-spin measurement scheme of magnetic resonance force microscopy.

  12. Libraries Reference Copyright 1996 -2003 Intel Corporation

    E-Print Network [OSTI]

    Fossati, Giovanni

    Intel® Fortran Libraries Reference Copyright © 1996 - 2003 Intel Corporation All Rights Reserved PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, or life sustain- ing applications. This Intel® Fortran Libraries Reference as well as the software described in it is furnished

  13. Archived Reference Building Type: Strip mall

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  14. Archived Reference Building Type: Strip mall

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  15. Archived Reference Building Type: Medium office

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  16. Archived Reference Building Type: Medium office

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  17. Archived Reference Building Type: Secondary school

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Building Type: Secondary school

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  19. Scaling and dimensional analysis of acoustic streaming jets

    SciTech Connect (OSTI)

    Moudjed, B.; Botton, V.; Henry, D.; Ben Hadid, H. [Laboratoire de Mécanique des Fluides et d’Acoustique, CNRS/Université de Lyon, Ecole Centrale de Lyon/Université Lyon 1/INSA de Lyon, ECL, 36 Avenue Guy de Collongue, 69134 Ecully Cedex (France); Garandet, J.-P. [CEA, Laboratoire d’Instrumentation et d’Expérimentation en Mécanique des Fluides et Thermohydraulique, DEN/DANS/DM2S/STMF/LIEFT, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex (France)

    2014-09-15T23:59:59.000Z

    This paper focuses on acoustic streaming free jets. This is to say that progressive acoustic waves are used to generate a steady flow far from any wall. The derivation of the governing equations under the form of a nonlinear hydrodynamics problem coupled with an acoustic propagation problem is made on the basis of a time scale discrimination approach. This approach is preferred to the usually invoked amplitude perturbations expansion since it is consistent with experimental observations of acoustic streaming flows featuring hydrodynamic nonlinearities and turbulence. Experimental results obtained with a plane transducer in water are also presented together with a review of the former experimental investigations using similar configurations. A comparison of the shape of the acoustic field with the shape of the velocity field shows that diffraction is a key ingredient in the problem though it is rarely accounted for in the literature. A scaling analysis is made and leads to two scaling laws for the typical velocity level in acoustic streaming free jets; these are both observed in our setup and in former studies by other teams. We also perform a dimensional analysis of this problem: a set of seven dimensionless groups is required to describe a typical acoustic experiment. We find that a full similarity is usually not possible between two acoustic streaming experiments featuring different fluids. We then choose to relax the similarity with respect to sound attenuation and to focus on the case of a scaled water experiment representing an acoustic streaming application in liquid metals, in particular, in liquid silicon and in liquid sodium. We show that small acoustic powers can yield relatively high Reynolds numbers and velocity levels; this could be a virtue for heat and mass transfer applications, but a drawback for ultrasonic velocimetry.

  20. Acoustic Mine Detection UsingAcoustic Mine Detection Using the Navy' CASS/GRAB Modelthe Navy' CASS/GRAB Model

    E-Print Network [OSTI]

    Chu, Peter C.

    Acoustic Mine Detection UsingAcoustic Mine Detection Using the Navy' CASS/GRAB Modelthe Navy' CASS hunting component of the U.S. Navy's Mine Hunting and Countermeasure ships. #12;Detection Sonar and MOODS. Global GDEM has a 30'30' resolution U.S. Navy's Operationally important areas contain resolutions

  1. Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Early Detection of Steel Rebar Corrosion by Acoustic Emission

    E-Print Network [OSTI]

    Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Alan D. Zdunek and David Prine BIRL Industrial Research, Evanston, IL 60201 Paper No. 547 presented at CORROSION95, the NACE International Annual Conference

  2. Ultra high frequency imaging acoustic microscope

    DOE Patents [OSTI]

    Deason, Vance A.; Telschow, Kenneth L.

    2006-05-23T23:59:59.000Z

    An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.

  3. Extraordinary acoustic transmission mediated by Helmholtz resonators

    SciTech Connect (OSTI)

    Koju, Vijay [Computation Science Program, Middle Tennessee State University, Murfreesboro, Tennessee 37132 (United States); Rowe, Ebony [Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, Tennessee 37132 (United States); Robertson, William M., E-mail: William.Robertson@mtsu.edu [Computation Science Program, Middle Tennessee State University, Murfreesboro, Tennessee 37132 (United States); Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, Tennessee 37132 (United States)

    2014-07-15T23:59:59.000Z

    We demonstrate perfect transmission of sound through a rigid barrier embedded with Helmholtz resonators. The resonators are confined within a waveguide and they are oriented such that one neck protrudes onto each side of the barrier. Perfect sound transmission occurs even though the open area of the necks is less than 3% of the barrier area. Maximum transmission occurs at the resonant frequency of the Helmholtz resonator. Because the dimensions of the Helmholtz resonators are much smaller than the resonant wavelength, the transmission is independent of the direction of sound on the barrier and of the relative placement of the necks. Further, we show that the transmitted sound experiences a continuous phase transition of ? radians as a function of frequency through resonance. In simulations of adjacent resonators with slightly offset resonance frequencies, the phase difference leads to destructive interference. By expanding the simulation to a linear array of tuned Helmholtz resonators we show that it is possible to create an acoustic lens. The ability of Helmholtz resonator arrays to manipulate the phase of a plane acoustic wave enables a new class of sonic beam-forming devices analogous to diffractive optics.

  4. Opto-acoustic transducer for medical applications

    DOE Patents [OSTI]

    Benett, W.; Celliers, P.; Da Silva, L.; Glinsky, M.; London, R.; Maitland, D.; Matthews, D.; Krulevich, P.; Lee, A.

    1999-08-31T23:59:59.000Z

    This invention is an optically activated transducer for generating acoustic vibrations in a biological medium. The transducer is located at the end of a fiber optic which may be located within a catheter. Energy for operating the transducer is provided optically by laser light transmitted through the fiber optic to the transducer. Pulsed laser light is absorbed in the working fluid of the transducer to generate a thermal pressure and consequent adiabatic expansion of the transducer head such that it does work against the ambient medium. The transducer returns to its original state by a process of thermal cooling. The motion of the transducer within the ambient medium couples acoustic energy into the medium. By pulsing the laser at a high repetition rate (which may vary from CW to 100 kHz) an ultrasonic radiation field can be established locally in the medium. This method of producing ultrasonic vibrations can be used in vivo for the treatment of stroke-related conditions in humans, particularly for dissolving thrombus. The catheter may also incorporate anti-thrombolytic drug treatments as an adjunct therapy and it may be operated in conjunction with ultrasonic detection equipment for imaging and feedback control. 7 figs.

  5. Diving with microparticles in acoustic fields

    E-Print Network [OSTI]

    Marin, Alvaro; Barnkob, Rune; Augustsson, Per; Muller, Peter; Bruus, Henrik; Laurell, Thomas; Kaehler, Christian

    2012-01-01T23:59:59.000Z

    Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate to the nodes of the acoustic wave. For several years, acoustophoresis has been used to manipulate microparticles in microscopic scales. In this fluid dynamics video, submitted to the 30th Annual Gallery of Fluid Motion, we show the basic mechanism of the technique and a simple way of visualize it. Since acoustophoretic phenomena is essentially a three-dimensional effect, we employ a simple technique to visualize the particles in 3D. The technique is called Astigmatism Particle Tracking Velocimetry and it consists in the use of cylindrical lenses to induce a deformation in the particle shape, which will be then correlated with its distance from the observer. With this method we are able to dive with the particles and observe in detail particle motion that would otherwise be missed. The technique not only permits visualization but also precise quantitat...

  6. Opto-acoustic transducer for medical applications

    DOE Patents [OSTI]

    Benett, William (Livermore, CA); Celliers, Peter (Berkeley, CA); Da Silva, Luiz (Danville, CA); Glinsky, Michael (Livermore, CA); London, Richard (Orinda, CA); Maitland, Duncan (Livermore, CA); Matthews, Dennis (Moss Beach, CA); Krulevich, Peter (Pleasanton, CA); Lee, Abraham (Walnut Creek, CA)

    1999-01-01T23:59:59.000Z

    This invention is an optically activated transducer for generating acoustic vibrations in a biological medium. The transducer is located at the end of a fiber optic which may be located within a catheter. Energy for operating the transducer is provided optically by laser light transmitted through the fiber optic to the transducer. Pulsed laser light is absorbed in the working fluid of the transducer to generate a thermal pressure and consequent adiabatic expansion of the transducer head such that it does work against the ambient medium. The transducer returns to its original state by a process of thermal cooling. The motion of the transducer within the ambient medium couples acoustic energy into the medium. By pulsing the laser at a high repetition rate (which may vary from CW to 100 kHz) an ultrasonic radiation field can be established locally in the medium. This method of producing ultrasonic vibrations can be used in vivo for the treatment of stroke-related conditions in humans, particularly for dissolving thrombus. The catheter may also incorporate anti-thrombolytic drug treatments as an adjunct therapy and it may be operated in conjunction with ultrasonic detection equipment for imaging and feedback control.

  7. Opto-acoustic transducer for medical applications

    DOE Patents [OSTI]

    Benett, William (Livermore, CA); Celliers, Peter (Berkeley, CA); Da Silva, Luiz (Danville, CA); Glinsky, Michael (Livermore, CA); London, Richard (Orinda, CA); Maitland, Duncan (Livermore, CA); Matthews, Dennis (Moss Beach, CA); Krulevich, Peter (Pleasanton, CA); Lee, Abraham (Walnut Creek, CA)

    2002-01-01T23:59:59.000Z

    This invention is an optically activated transducer for generating acoustic vibrations in a biological medium. The transducer is located at the end of a fiber optic which may be located within a catheter. Energy for operating the transducer is provided optically by laser light transmitted through the fiber optic to the transducer. Pulsed laser light is absorbed in the working fluid of the transducer to generate a thermal pressure and consequent adiabatic expansion of the transducer head such that it does work against the ambient medium. The transducer returns to its original state by a process of thermal cooling. The motion of the transducer within the ambient medium couples acoustic energy into the medium. By pulsing the laser at a high repetition rate (which may vary from CW to 100 kHz) an ultrasonic radiation field can be established locally in the medium. This method of producing ultrasonic vibrations can be used in vivo for the treatment of stroke-related conditions in humans, particularly for dissolving thrombus. The catheter may also incorporate anti-thrombolytic drug treatments as an adjunct therapy and it may be operated in conjunction with ultrasonic detection equipment for imaging and feedback control.

  8. formula society of automotive engineers

    E-Print Network [OSTI]

    Stormo, Gary

    formula society of automotive engineers >> wuracing.com #12;The 2013 season presents a huge and promising time for WUracing. Thank you, Surjan Singh President, Formula SAE, WUracing message to sponsors University comprises a group of enthusiastic students who completely design and fabricate a formula race car

  9. ROYAL SOCIETY OF SOUTH AFRICA

    E-Print Network [OSTI]

    de Villiers, Marienne

    ROYAL SOCIETY OF SOUTH AFRICA http://www.royalsocietysa.org.za ACADEMY OF SCIENCE OF SOUTH AFRICA and distribution of butterflies in the atlas region (South Africa, Lesotho and Swaziland), thereby providing-ordinator of Africa's first butterfly atlas, entitled `The metamorphosis of the butterfly atlas' The Southern African

  10. Bulletin of Science, Technology & Society

    E-Print Network [OSTI]

    Delaware, University of

    --societyrelationship.Butfirstitproceedsthrough The present organization of society has delivered stupendous economic expansion during the past 60 years of an Alternative to Nuclear Power as a Response to the Energy-Environment Crisis in India Development as Freedom and a Sustainable Energy Utility Manu V. Mathai Center for Energy and Environmental Policy, University of Delaware

  11. Droplet Combustion and Non-Reactive Shear-Coaxial Jets with Transverse Acoustic Excitation

    E-Print Network [OSTI]

    Teshome, Sophonias

    2012-01-01T23:59:59.000Z

    Related Works in Droplet Combustion . . . . . . . .of Acoustics on Droplet Combustion . . . . . . . . . . . .Fuel Droplet Combustion . . . . . . . . . . . . . . .

  12. A SpaceTime Finite Element Method for the Exterior Acoustics Problem

    E-Print Network [OSTI]

    Thompson, Lonny L.

    A Space­Time Finite Element Method for the Exterior Acoustics Problem by Lonny L. Thompson problem in exterior domains is discussed. The space­time formulation for the exterior acoustics problem acoustics problem. i #12; Contents 1 Introduction 1 2 The Exterior Acoustics Problem 3 3 Space­time finite

  13. Multiple Event Localization in a Sparse Acoustic Sensor Network Using UAVs as Data Mules

    E-Print Network [OSTI]

    Hespanha, João Pedro

    , localization, and verification of mul- tiple acoustic events using sparsely deployed unattended ground sensors

  14. Theory and Observations of Low Frequency Eigenmodes due to Alfvén Acoustic Coupling in Toroidal Fusion Plasmas

    E-Print Network [OSTI]

    Theory and Observations of Low Frequency Eigenmodes due to Alfvén Acoustic Coupling in Toroidal Fusion Plasmas

  15. Section 12: Waves and acoustics 1 Section 12: Waves and acoustics

    E-Print Network [OSTI]

    Kohlenbach, Ulrich

    Highly Porous Media Abstract 13:50 ­ 14:10: Hoffmann, N.P., Chabchoub, A. (TU Hamburg-Harburg): Experiments on Peregrine soliton type deep water gravity waves Abstract 14:10 ­ 14:30: Thomas Müllner (TU Wien): Acoustical performance of concreted wood fiber materials Abstract S12.4: Elastic Waves Wed, 16:00­18:00 Chair

  16. Observation of a single-beam gradient force acoustical trap for elastic particles: acoustical tweezers

    E-Print Network [OSTI]

    Diego Baresch; Jean-Louis Thomas; Régis Marchiano

    2014-11-07T23:59:59.000Z

    The ability to manipulate matter precisely is critical for the study and development of a large variety of systems. Optical tweezers are excellent tools to handle particles ranging in size from a few micrometers to hundreds of nanometers but become inefficient and damaging on larger objects. We demonstrate for the first reported time the trapping of elastic particles by the large gradient force of a single acoustical beam in three dimensions. We show that at equal power, acoustical forces overtake by 8 orders of magnitude that of optical ones on macroscopic objects. Acoustical tweezers can push, pull and accurately control both the position of the particle and the forces exerted under damage-free conditions. The large spectrum of frequencies covered by coherent ultrasonic sources will provide a wide variety of manipulation possibilities from macro- to microscopic length scales. We believe our observations improve the prospects for wider use of non-contact manipulation in biology, biophysics, microfluidics and robotics and bridge the gap that had remained to the macroscopic scale.

  17. Introducing Reference Semantics via Refinement Graeme Smith

    E-Print Network [OSTI]

    Smith, Graeme

    Introducing Reference Semantics via Refinement Graeme Smith Software Verification Research Centre, University of Queensland, Australia smith@svrc.uq.edu.au Abstract. Two types of semantics have been given

  18. An expectation model of referring expressions

    E-Print Network [OSTI]

    Kræmer, John, Ph. D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    This thesis introduces EMRE, an expectation-based model of referring expressions. EMRE is proposed as a model of non-syntactic dependencies - in particular, discourse-level semantic dependencies that bridge sentence gaps. ...

  19. Archive Reference Buildings by Building Type: Supermarket

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  20. Archive Reference Buildings by Building Type: Warehouse

    Broader source: Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  1. Generating and interpreting referring expressions in context

    E-Print Network [OSTI]

    Smith, Dustin Arthur

    2013-01-01T23:59:59.000Z

    Referring expressions with vague and ambiguous modifiers, such as "a quick visit" and "the big meeting," are difficult for computers to interpret because their meanings are defined in part by context. For the hearer to ...

  2. Clause chaining, switch reference and coordination

    E-Print Network [OSTI]

    Nonato, Rafael

    2014-01-01T23:59:59.000Z

    In this thesis I ponder over a constellation of phenomena that revolve around switch reference and coordination, drawing mainly on their instantiation in Kisedje (Je, Brazil). I start by investigating Klsedje's case system. ...

  3. Libraries Reference Document Number: 253262-002

    E-Print Network [OSTI]

    Talbot, James P.

    Intel® Fortran Libraries Reference Document Number: 253262-002 World Wide Web: http PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, or life sustain- ing.................................................................................... xxiv Chapter 1 Overview of the Libraries Portability Routines

  4. Integrating Referring and Informing in NP Planning 

    E-Print Network [OSTI]

    O'Donnell, Michael; Knott, Alistair; Hitzeman, Janet; Cheng, Hua

    Two of the functions of an NP are to refer (identify a particular entity) and to inform (provide new information about an entity). While many NPs may serve only one of these functions, some NPs conflate the functions, ...

  5. FAQS Reference Guide – Safety Software Quality Assurance

    Broader source: Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the (March 2011) edition of DOE-STD-1172-2011, Safety Software Quality Assurance Functional Area Qualification Standard.

  6. Defining Reference Information for Restoring Ecologically Rare

    E-Print Network [OSTI]

    . In particular, we assess the constraints that arise when refer- ence information from various sources is ei type that occurs across temperate and tropical regions and is characterized by scattered, open- grown

  7. Acoustic stabilization of electric arc instabilities in nontransferred plasma torches

    SciTech Connect (OSTI)

    Rat, V.; Coudert, J. F. [CNRS, University of Limoges, SPTCS UMR6638, 123 Avenue A. Thomas, 87060 Limoges Cedex (France)

    2010-03-08T23:59:59.000Z

    Electric arc instabilities in dc plasma torches lead to nonhomogeneous treatments of nanosized solid particles or liquids injected within thermal plasma jets. This paper shows that an additional acoustic resonator mounted on the cathode cavity allows reaching a significant damping of these instabilities, particularly the Helmholtz mode of arc oscillations. The acoustic resonator is coupled with the Helmholtz resonator of the plasma torch limiting the amplitude of arc voltage variations. It is also highlighted that this damping is dependent on friction effects in the acoustic resonator.

  8. Design and demonstration of broadband thin planar diffractive acoustic lenses

    SciTech Connect (OSTI)

    Wang, Wenqi; Xie, Yangbo; Konneker, Adam; Popa, Bogdan-Ioan; Cummer, Steven A., E-mail: cummer@ee.duke.edu [Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708 (United States)

    2014-09-08T23:59:59.000Z

    We present here two diffractive acoustic lenses with subwavelength thickness, planar profile, and broad operation bandwidth. Tapered labyrinthine unit cells with their inherently broadband effective material properties are exploited in our design. Both the measured and the simulated results are showcased to demonstrate the lensing effect over more than 40% of the central frequency. The focusing of a propagating Gaussian modulated sinusoidal pulse is also demonstrated. This work paves the way for designing diffractive acoustic lenses and more generalized phase engineering diffractive elements with labyrinthine acoustic metamaterials.

  9. Detection of bioagents using a shear horizontal surface acoustic wave biosensor

    DOE Patents [OSTI]

    Larson, Richard S; Hjelle, Brian; Hall, Pam R; Brown, David C; Bisoffi, Marco; Brozik, Susan M; Branch, Darren W; Edwards, Thayne L; Wheeler, David

    2014-04-29T23:59:59.000Z

    A biosensor combining the sensitivity of surface acoustic waves (SAW) generated at a frequency of 325 MHz with the specificity provided by antibodies and other ligands for the detection of viral agents. In a preferred embodiment, a lithium tantalate based SAW transducer with silicon dioxide waveguide sensor platform featuring three test and one reference delay lines was used to adsorb antibodies directed against Coxsackie virus B4 or the negative-stranded category A bioagent Sin Nombre virus (SNV). Rapid detection of increasing concentrations of viral particles was linear over a range of order of magnitude for both viruses, and the sensor's selectivity for its target was not compromised by the presence of confounding Herpes Simplex virus type 1 The biosensor was able to delect SNV at doses lower than the load of virus typically found in a human patient suffering from hantavirus cardiopulmonary syndrome (HCPS).

  10. Quantum communication, reference frames and gauge theory

    E-Print Network [OSTI]

    S. J. van Enk

    2006-04-26T23:59:59.000Z

    We consider quantum communication in the case that the communicating parties not only do not share a reference frame but use imperfect quantum communication channels, in that each channel applies some fixed but unknown unitary rotation to each qubit. We discuss similarities and differences between reference frames within that quantum communication model and gauge fields in gauge theory. We generalize the concept of refbits and analyze various quantum communication protocols within the communication model.

  11. Electromechanical transducer for acoustic telemetry system

    DOE Patents [OSTI]

    Drumheller, D.S.

    1993-06-22T23:59:59.000Z

    An improved electromechanical transducer is provided for use in an acoustic telemetry system. The transducer of this invention comprises a stack of ferroelectric ceramic disks interleaved with a plurality of spaced electrodes which are used to electrically pole the ceramic disks. The ceramic stack is housed in a metal tubular drill collar segment. The electrodes are preferably alternatively connected to ground potential and driving potential. This alternating connection of electrodes to ground and driving potential subjects each disk to an equal electric field; and the direction of the field alternates to match the alternating direction of polarization of the ceramic disks. Preferably, a thin metal foil is sandwiched between electrodes to facilitate the electrical connection. Alternatively, a thicker metal spacer plate is selectively used in place of the metal foil in order to promote thermal cooling of the ceramic stack.

  12. Analog circuit for controlling acoustic transducer arrays

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    1991-01-01T23:59:59.000Z

    A simplified ananlog circuit is presented for controlling electromechanical transducer pairs in an acoustic telemetry system. The analog circuit of this invention comprises a single electrical resistor which replaces all of the digital components in a known digital circuit. In accordance with this invention, a first transducer in a transducer pair of array is driven in series with the resistor. The voltage drop across this resistor is then amplified and used to drive the second transducer. The voltage drop across the resistor is proportional and in phase with the current to the transducer. This current is approximately 90 degrees out of phase with the driving voltage to the transducer. This phase shift replaces the digital delay required by the digital control circuit of the prior art.

  13. Electromechanical transducer for acoustic telemetry system

    DOE Patents [OSTI]

    Drumheller, Douglas S. (Cedar Crest, NM)

    1993-01-01T23:59:59.000Z

    An improved electromechanical transducer is provided for use in an acoustic telemetry system. The transducer of this invention comprises a stack of ferroelectric ceramic disks interleaved with a plurality of spaced electrodes which are used to electrically pole the ceramic disks. The ceramic stack is housed in a metal tubular drill collar segment. The electrodes are preferably alternatively connected to ground potential and driving potential. This alternating connection of electrodes to ground and driving potential subjects each disk to an equal electric field; and the direction of the field alternates to match the alternating direction of polarization of the ceramic disks. Preferably, a thin metal foil is sandwiched between electrodes to facilitate the electrical connection. Alternatively, a thicker metal spacer plate is selectively used in place of the metal foil in order to promote thermal cooling of the ceramic stack.

  14. A perspective on the CMB acoustic peak

    E-Print Network [OSTI]

    T. A. Marriage

    2002-03-11T23:59:59.000Z

    CMB angular spectrum measurements suggest a flat universe. This paper clarifies the relation between geometry and the spherical harmonic index of the first acoustic peak ($\\ell_{peak}$). Numerical and analytic calculations show that $\\ell_{peak}$ is approximately a function of $\\Omega_K/\\Omega_M$ where $\\Omega_K$ and $\\Omega_M$ are the curvature ($\\Omega_K > 0$ implies an open geometry) and mass density today in units of critical density. Assuming $\\Omega_K/\\Omega_M \\ll 1$, one obtains a simple formula for $\\ell_{peak}$, the derivation of which gives another perspective on the widely-recognized $\\Omega_M$-$\\Omega_\\Lambda$ degeneracy in flat models. This formula for near-flat cosmogonies together with current angular spectrum data yields familiar parameter constraints.

  15. Acoustic sand detector for fluid flowstreams

    DOE Patents [OSTI]

    Beattie, Alan G. (Corrales, NM); Bohon, W. Mark (Frisco, TX)

    1993-01-01T23:59:59.000Z

    The particle volume and particle mass production rate of particulate solids entrained in fluid flowstreams such as formation sand or fracture proppant entrained in oil and gas production flowstreams is determined by a system having a metal probe interposed in a flow conduit for transmitting acoustic emissions created by particles impacting the probe to a sensor and signal processing circuit which produces discrete signals related to the impact of each of the particles striking the probe. The volume or mass flow rate of particulates is determined from making an initial particle size distribution and particle energy distribution and comparing the initial energy distribution and/or the initial size distribution with values related to the impact energies of a predetermined number of recorded impacts. The comparison is also used to recalibrate the system to compensate for changes in flow velocity.

  16. "Analysis of SOFCs using reference electrodes?

    SciTech Connect (OSTI)

    Finklea, Harry; Chen,Xiaoke; Gerdes,Kirk; Pakalapati, Suryanarayana; Celik, Ismail

    2013-07-01T23:59:59.000Z

    Reference electrodes are frequently applied to isolate the performance of one electrode in a solid oxide fuel cell. However, reference electrode simulations raise doubt to veracity of data collected using reference electrodes. The simulations predict that the reported performance for the one electrode will frequently contain performance of both electrodes. Nonetheless, recent reports persistently treat data so collected as ideally isolated. This work confirms the predictions of the reference electrode simulations on two SOFC designs, and to provides a method of validating the data measured in the 3-electrode configuration. Validation is based on the assumption that a change in gas composition to one electrode does not affect the impedance of the other electrode at open circuit voltage. This assumption is supported by a full physics simulation of the SOFC. Three configurations of reference electrode and cell design are experimentally examined using various gas flows and two temperatures. Impedance data are subjected to deconvolution analysis and equivalent circuit fitting and approximate polarization resistances of the cathode and anode are determined. The results demonstrate that the utility of reference electrodes is limited and often wholly inappropriate. Reported impedances and single electrode polarization values must be scrutinized on this basis.

  17. acoustic neuromas comparison: Topics by E-print Network

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

    13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ocean Climate Change: Comparison of Acoustic Engineering Websites Summary: Ocean Climate Change: Comparison...

  18. EXPERIMENTS ON CROSSLANGUAGE ACOUSTIC MODELING T. Schultz and A. Waibel

    E-Print Network [OSTI]

    Schultz, Tanja

    studies we applied acoustic models from four languages to bootstrap Chinese, Croatian, and Turkish [5]. We applied monolingual systems from Chinese, Croatian, German, French, Japanese, Spanish and Turkish, as well

  19. Acoustic classification of buried objects with mobile sonar platforms

    E-Print Network [OSTI]

    Edwards, Joseph Richard, 1971-

    2006-01-01T23:59:59.000Z

    In this thesis, the use of highly mobile sonar platforms is investigated for the purpose of acoustically classifying compact objects on or below the seabed. The extension of existing strategies, including synthetic aperture ...

  20. Nonlinear acoustics experimental characterization of microstructure evolution in Inconel 617

    SciTech Connect (OSTI)

    Yao, Xiaochu; Liu, Yang; Lissenden, Cliff J. [Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802 (United States)

    2014-02-18T23:59:59.000Z

    Inconel 617 is a candidate material for the intermediate heat exchanger in a very high temperature reactor for the next generation nuclear power plant. This application will require the material to withstand fatigue-ratcheting interaction at temperatures up to 950°C. Therefore nondestructive evaluation and structural health monitoring are important capabilities. Acoustic nonlinearity (which is quantified in terms of a material parameter, the acoustic nonlinearity parameter, ?) has been proven to be sensitive to microstructural changes in material. This research develops a robust experimental procedure to track the evolution of damage precursors in laboratory tested Inconel 617 specimens using ultrasonic bulk waves. The results from the acoustic non-linear tests are compared with stereoscope surface damage results. Therefore, the relationship between acoustic nonlinearity and microstructural evaluation can be clearly demonstrated for the specimens tested.

  1. acoustic radiation force: Topics by E-print Network

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

    systems Peder of Denmark 31 January 2008 12;ii 12;Abstract Within the field of microfluidics and lab-on-a-chip systems 9 Identification of the acoustic component in the...

  2. acoustic radiation forces: Topics by E-print Network

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

    systems Peder of Denmark 31 January 2008 12;ii 12;Abstract Within the field of microfluidics and lab-on-a-chip systems 9 Identification of the acoustic component in the...

  3. acoustic playback techniques: Topics by E-print Network

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

    in the way the source region is modeled; in the way the equations are used to compute the propagation of acoustic waves in a non-quiescent medium; and in the way the coupling...

  4. acoustic waves propagating: Topics by E-print Network

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

    13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Unidirectional propagation of designer surface acoustic waves CERN Preprints Summary: We propose an...

  5. acoustic wave filters: Topics by E-print Network

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

    in the way the source region is modeled; in the way the equations are used to compute the propagation of acoustic waves in a non-quiescent medium; and in the way the coupling...

  6. acoustic wave filter: Topics by E-print Network

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

    in the way the source region is modeled; in the way the equations are used to compute the propagation of acoustic waves in a non-quiescent medium; and in the way the coupling...

  7. acoustic wave array: Topics by E-print Network

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

    scene analysis is done in terms of circular harmonics 9. A desired Zotkin, Dmitry N. 4 Propagation of acoustic waves in a one-dimensional array of noncohesive cylinders...

  8. acoustic waves moving: Topics by E-print Network

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

    Propagation in a Thin Moving Fluid Mathematical Physics (arXiv) Summary: We study the propagation of acoustic waves in a fluid that is contained in a thin two-dimensional tube,...

  9. acoustic wave field: Topics by E-print Network

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

    convection zone of the Sun CERN Preprints Summary: Results of numerical 3D simulations of propagation of acoustic waves inside the Sun are presented. A linear 3D code which...

  10. acoustic waves trapped: Topics by E-print Network

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

    in a magnetoplasma with a pair of trapped ions CERN Preprints Summary: The nonlinear propagation of dust-acoustic (DA) waves in a magnetized dusty plasma with a pair of...

  11. acoustic scattering problems: Topics by E-print Network

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

    Summary: The scattering process of a dynamic perturbation impinging on a draining-tub model of an acoustic black hole is numerically solved in the time domain. Analogies with...

  12. Multipole seismoelectric logging while drilling (LWD) for acoustic velocity measurements

    E-Print Network [OSTI]

    Zhu, Zhenya

    2012-01-01T23:59:59.000Z

    In seismoelectric well logging, an acoustic wave propagates along a borehole and induces electrical signals along the borehole wall. The apparent velocities of these seismoelectric signals are equal to the formation ...

  13. Transverse acoustic actuation of Ni-Mn-Ga single crystals

    E-Print Network [OSTI]

    Simon, Jesse Matthew

    2007-01-01T23:59:59.000Z

    Two methods for the transverse acoustic actuation of {110}-cut Ni-Mn-Ga single crystals are discussed. In this actuation mode, crystals are used that have the {110}- type twinning planes parallel to the base of the crystal. ...

  14. Signal processing for fiber optic acoustic sensor system

    E-Print Network [OSTI]

    Zhu, Juhong

    2000-01-01T23:59:59.000Z

    pulses from a single mode laser. Signals from multiple sensors in the array are separated and demultiplexed. The acoustic pressure information is determined by processing the returned optical pulses using a fiber Mach-Zehnder interferometer as an optical...

  15. acoustic imaging applied: Topics by E-print Network

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

    12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Acoustic Daylight Imaging: Vision In The Ocean CiteSeer Summary: Sound provides a natural means for...

  16. acoustic radar: Topics by E-print Network

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

    the electromagnetic waves... Lopez Aguilar, Luis Felipe 2012-06-07 12 Acoustic Daylight Imaging: Vision In The Ocean CiteSeer Summary: Sound provides a natural means for...

  17. acoustic detectors: Topics by E-print Network

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

    a promising approach to instrument large detector volumes needed to detect the small flux of cosmic neutrinos at ultra-high energies (E > 1 EeV). Acoustic signals are calculated...

  18. acoustic spectrum analysis: Topics by E-print Network

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

    2 The acoustic spectrum of alpha Cen A CERN Preprints Summary: This paper presents the analysis of Doppler p-mode observations of the G2V star alpha Cen A obtained with the...

  19. Acoustical study of the development of stop consonants in children

    E-Print Network [OSTI]

    Imbrie, Annika Karin Karlsson

    2005-01-01T23:59:59.000Z

    This study focuses on the acoustic patterns of stop consonants and adjacent vowels as they develop in young children (ages 2;6-3;3) over a six month period. Speech is generated using a series of articulatory, laryngeal, ...

  20. acoustic nuclear magnetic resonance: Topics by E-print Network

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

    acoustic nuclear magnetic resonance First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1...

  1. acoustic interferometry technique: Topics by E-print Network

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

    Preprints Summary: Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate...

  2. acoustic modes induced: Topics by E-print Network

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

    Preprints Summary: Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate...

  3. acoustically induced vibration: Topics by E-print Network

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

    Preprints Summary: Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate...

  4. acoustic molten metal: Topics by E-print Network

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

    Preprints Summary: Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate...

  5. acoustic envelope shape: Topics by E-print Network

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

    Preprints Summary: Sound can move particles. A good example of this phenomenon is the Chladni plate, in which an acoustic wave is induced in a metallic plate and particles migrate...

  6. Ion-acoustic cnoidal waves in a quantum plasma

    SciTech Connect (OSTI)

    Mahmood, S. [Physics Institute, Federal University of Rio Grande do Sul, RS, Porto Alegre 915051-970 (Brazil); Theoretical Physics Division (TPD), PINSTECH P.O. Nilore, Islamabad 44000 (Pakistan); Haas, F. [Physics Institute, Federal University of Rio Grande do Sul, RS, Porto Alegre 915051-970 (Brazil)

    2014-10-15T23:59:59.000Z

    Nonlinear ion-acoustic cnoidal wave structures are studied in an unmagnetized quantum plasma. Using the reductive perturbation method, a Korteweg-de Vries equation is derived for appropriate boundary conditions and nonlinear periodic wave solutions are obtained. The corresponding analytical solution and numerical plots of the ion-acoustic cnoidal waves and solitons in the phase plane are presented using the Sagdeev pseudo-potential approach. The variations in the nonlinear potential of the ion-acoustic cnoidal waves are studied at different values of quantum parameter H{sub e} which is the ratio of electron plasmon energy to electron Fermi energy defined for degenerate electrons. It is found that both compressive and rarefactive ion-acoustic cnoidal wave structures are formed depending on the value of the quantum parameter. The dependence of the wavelength and frequency on nonlinear wave amplitude is also presented.

  7. acoustic decay instability: Topics by E-print Network

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

    examples have short orbital times so the unstable growth time can be small. L. E. Montenegro; C. Yuan; B. G. Elmegreen 1999-03-26 9 Curvature and Acoustic Instabilities in...

  8. Journal of Computational Acoustics, FREQUENCY DOMAIN WAVE PROPAGATION MODELLING

    E-Print Network [OSTI]

    Sheen, Dongwoo

    #11;ect de gas, brine or oil and gas-brine or gas-oil pore uids on seismic velocities. NumericalJournal of Computational Acoustics, f c IMACS FREQUENCY DOMAIN WAVE PROPAGATION MODELLING

  9. acoustic fluid structure: Topics by E-print Network

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

    of a water-loaded structure excited by an impulse force is of interest for the acoustic stealth of submarines Paris-Sud XI, Universit de 49 Far-Field Underwater Explosion...

  10. On reconstruction and time reversal in thermoacoustic tomography in acoustically

    E-Print Network [OSTI]

    Kuchment, Peter

    On reconstruction and time reversal in thermoacoustic tomography in acoustically homogeneous of recent approaches to the reconstruction in thermoacoustic/photoacoustic tomography: backprojection of the problem of sound speed recovery is also provided. Keywords: Tomography, thermoacoustic, wave equation. AMS

  11. Acoustic Waveform Logging - Advances In Theory And Application

    E-Print Network [OSTI]

    Cheng, C. H.

    Full-waveform acoustic logging has made significant advances in both theory and application in recent years, and these advances have greatly increased the capability of log analysts to measure the physical properties of ...

  12. acoustic oscillation signature: Topics by E-print Network

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

    to set more robust constraints on the determinations of cosmological parameters including dark energy and its equation of state. Xiao-Chun Mao; Xiang-Ping Wu 2008-01-16 2 Acoustic...

  13. acoustic detection: Topics by E-print Network

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

    at least four hours before actual failure. Nathan Ida Razvan Ciocan 94 DETECTION OF CORROSION ATTACK ON OIL TANKERS BY MEANS OF ACOUSTIC EMISSION (AE) CiteSeer Summary: The...

  14. Nonlinear characterization of a single-axis acoustic levitator

    SciTech Connect (OSTI)

    Andrade, Marco A. B. [Institute of Physics, University of São Paulo, São Paulo (Brazil)] [Institute of Physics, University of São Paulo, São Paulo (Brazil); Ramos, Tiago S.; Okina, Fábio T. A.; Adamowski, Julio C. [Department of Mechatronics and Mechanical Systems Engineering, Escola Politécnica, University of São Paulo, São Paulo (Brazil)] [Department of Mechatronics and Mechanical Systems Engineering, Escola Politécnica, University of São Paulo, São Paulo (Brazil)

    2014-04-15T23:59:59.000Z

    The nonlinear behavior of a 20.3 kHz single-axis acoustic levitator formed by a Langevin transducer with a concave radiating surface and a concave reflector is experimentally investigated. In this study, a laser Doppler vibrometer is applied to measure the nonlinear sound field in the air gap between the transducer and the reflector. Additionally, an electronic balance is used in the measurement of the acoustic radiation force on the reflector as a function of the distance between the transducer and the reflector. The experimental results show some effects that cannot be described by the linear acoustic theory, such as the jump phenomenon, harmonic generation, and the hysteresis effect. The influence of these nonlinear effects on the acoustic levitation of small particles is discussed.

  15. acoustic tiltedti media: Topics by E-print Network

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

    especially those operating under lean-premixed (LPM) conditions. While LPM (more) Smith, Zachary A. 2011-01-01 17 Effects of acoustic waves on stickslip in granular media...

  16. Speech coding, reconstruction and recognition using acoustics and electromagnetic waves

    DOE Patents [OSTI]

    Holzrichter, J.F.; Ng, L.C.

    1998-03-17T23:59:59.000Z

    The use of EM radiation in conjunction with simultaneously recorded acoustic speech information enables a complete mathematical coding of acoustic speech. The methods include the forming of a feature vector for each pitch period of voiced speech and the forming of feature vectors for each time frame of unvoiced, as well as for combined voiced and unvoiced speech. The methods include how to deconvolve the speech excitation function from the acoustic speech output to describe the transfer function each time frame. The formation of feature vectors defining all acoustic speech units over well defined time frames can be used for purposes of speech coding, speech compression, speaker identification, language-of-speech identification, speech recognition, speech synthesis, speech translation, speech telephony, and speech teaching. 35 figs.

  17. Estimating propagation velocity through a surface acoustic wave sensor

    SciTech Connect (OSTI)

    Xu, Wenyuan (Oakdale, MN); Huizinga, John S. (Dellwood, MN)

    2010-03-16T23:59:59.000Z

    Techniques are described for estimating the propagation velocity through a surface acoustic wave sensor. In particular, techniques which measure and exploit a proper segment of phase frequency response of the surface acoustic wave sensor are described for use as a basis of bacterial detection by the sensor. As described, use of velocity estimation based on a proper segment of phase frequency response has advantages over conventional techniques that use phase shift as the basis for detection.

  18. The Gulf Coast Energy Conservation Society 

    E-Print Network [OSTI]

    Faulkner, C. R.

    1979-01-01T23:59:59.000Z

    similar industry in the area illustrates that a need existed and hope fully has been satisfied. The society meets every other month on the second Thursday in January, March, May, July, September and November. The purpose of the society is the promotion... company support in the area of conservation. 4. Fresh outlooks on many aspects of energy conservation. 5. Improved public relations at both individual and group levels. Many members believe the continued benefits being derived from the society are due...

  19. Global Climate Change: Environment, Technology and Society

    E-Print Network [OSTI]

    Mumby, Peter J.

    . Appreciate the main aspects of hydropower resource estimation, turbine design, deployment and environmental AND ASSESSMENTS Global Climate Change: Environment, Technology and Society I am a Civil Hydraulic

  20. Lienert named American Welding Society Fellow

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

    and industry with great distinction as an individual who contributed significantly to the knowledge, science, and application of welding," the society said in a statement. Research...

  1. Sandia National Laboratories: American Society of Mechanical...

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

    Paper Presented at American Society of Mechanical Engineers' (ASME) 2012 Internal Combustion Engine Division (ICED) Conference On August 28, 2013, in CRF, Energy, Energy...

  2. November 2012 SOCIETY for MINING, METALLURGY, and

    E-Print Network [OSTI]

    November 2012 2013-2014 SOCIETY for MINING, METALLURGY, and EXPLORATION (SME) Colorado Section goals (mining/civil/environmental engineering, metallurgy, economic geology, geochemistry

  3. National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter

    E-Print Network [OSTI]

    Hone, James

    National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter #12;Columbia University Greetings NSBE Family and Friends! My name is Ken Yearwood, the 2008-2009 Columbia University NSBE (National Society of Black Engineers) Chapter President. On behalf of the Columbia

  4. Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

    DOE Patents [OSTI]

    Vu, Cung Khac; Sinha, Dipen N; Pantea, Cristian; Nihei, Kurt T; Schmitt, Denis P; Skelt, Christopher

    2013-10-01T23:59:59.000Z

    In some aspects of the invention, a method of generating a beam of acoustic energy in a borehole is disclosed. The method includes generating a first acoustic wave at a first frequency; generating a second acoustic wave at a second frequency different than the first frequency, wherein the first acoustic wave and second acoustic wave are generated by at least one transducer carried by a tool located within the borehole; transmitting the first and the second acoustic waves into an acoustically non-linear medium, wherein the composition of the non-linear medium produces a collimated beam by a non-linear mixing of the first and second acoustic waves, wherein the collimated beam has a frequency based upon a difference between the first frequency and the second frequency; and transmitting the collimated beam through a diverging acoustic lens to compensate for a refractive effect caused by the curvature of the borehole.

  5. Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition, Copyright 2004, American Society for Engineering Education

    E-Print Network [OSTI]

    Roylance, David

    Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition between the two institutions. #12;Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition, Copyright © 2004, American Society for Engineering Education

  6. Collected References, available on-line as , updated 23-Feb-14 References for: Gio Wiederhold

    E-Print Network [OSTI]

    Stanford University

    .6] [Abba:97] Wayne Abba: "Earned Value Management: Reconciling Government and Commercial Practices-14 1 References for: Gio Wiederhold: Valuing Intellectual Capital, Multinationals and Taxhavens is italicized. Entries cited and listed in the Reference section of Valuing Intelectual Capital have [bold

  7. NIST Standard Reference Database 23 NIST Reference Fluid Thermodynamic and Transport Properties--

    E-Print Network [OSTI]

    Magee, Joseph W.

    -Conditioning and Refrigeration Technology Institute and the U.S. Department of Energy. The development of the models on which#12;NIST Standard Reference Database 23 NIST Reference Fluid Thermodynamic and Transport Properties Properties Division National Institute of Standards and Technology Boulder, Colorado 80305 April, 2007 U

  8. NIST Standard Reference Database 23 NIST Reference Fluid Thermodynamic and Transport Properties--

    E-Print Network [OSTI]

    Technology Institute and the U.S. Department of Energy. Model development and measurements at NIST have been#12;NIST Standard Reference Database 23 NIST Reference Fluid Thermodynamic and Transport Properties Division National Institute of Standards and Technology Boulder, Colorado 80305 November, 2010 U

  9. Kyoto University Libraries Reference Guide 1. Compare the reference style of books and journals

    E-Print Network [OSTI]

    Takada, Shoji

    Kyoto University Libraries Reference Guide 1. Compare the reference style of books and journals Ex Publisher Year of Publications Pages Ex.3) The basic style of journal articles Fidel, Raya; Green, Maurice -Distinguishing kinds of documents- Ver.1.1, 2008.03.26, Yumi Sugimoto (Eng.Arch.Library), Ver.2.0, 2014

  10. Acoustic detection of Immiscible Liquids in Sand

    SciTech Connect (OSTI)

    Geller, Jil T.; Kowalsky, Michael B.; Seifert, Patricia K.; Nihei, Kurt T.

    1999-03-01T23:59:59.000Z

    Laboratory cross-well P-wave transmission at 90 kHz was measured in a 61 cm diameter by 76 cm tall water-saturated sand pack, before and after introducing a non-aqueous phase organic liquid (NAPL) (n-dodecane). In one experiment NAPL was introduced to form a lens trapped by a low permeability layer; a second experiment considered NAPL residual trapped behind the front of flowing NAPL. The NAPL caused significant changes in the travel time and amplitude of first arrivals, as well as the generation of diffracted waves arriving after the direct wave. The spatial variations in NAPL saturation obtained from excavation at the end of the experiment correlated well with the observed variations in the P-wave amplitudes and travel times. NAPL residual saturation changes from NAPL flow channels of 3 to 4% were detectable and the 40 to 80% NAPL saturation in the NAPL lens was clearly visible at acoustic frequencies. The results of these experiments demonstrate that small NAPL saturations may be more easily detected with amplitude rather than travel time data, but that the relationships between the amplitude changes and NAPL saturation maybe more complex than those for velocity.

  11. Fragmented Economy, Stratified Society, and the Shattered Dream

    E-Print Network [OSTI]

    Mordechay, Kfir; Orfield, Gary

    2011-01-01T23:59:59.000Z

    Future of the California Economy is on the Coast, FebruaryMarch 17, 2010. Fragmented Economy, Stratified Society, andFragmented Economy, Stratified Society, and the Shattered

  12. Society of Automotive Engineers honors Storey, Wagner, Sluder...

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

    Communications 865.574.4399 Society of Automotive Engineers honors Storey, Wagner, Sluder The Society of Automotive Engineers has honored ORNL researches (from left) Robert Wagner,...

  13. INVESTIGATION Construction of Reference Chromosome-Scale

    E-Print Network [OSTI]

    Douches, David S.

    INVESTIGATION Construction of Reference Chromosome-Scale Pseudomolecules for Potato: Integrating was genotyped with several types of molecular genetic markers to construct a new ~936 cM linkage map comprising and orientation within the pseudo- molecules are closely collinear with independently constructed high density

  14. Risk Management Steering Committee Terms of Reference

    E-Print Network [OSTI]

    Victoria, University of

    Risk Management Steering Committee Terms of Reference October 2009 1.0 Purpose The purposes Facilities Management Risk and Insurance Analyst Associate Vice-President Human Resources Administrative of the Steering Committee are: a) to follow a continuous process to understand and communicate risk from

  15. Previous Up Next Article From References: 0

    E-Print Network [OSTI]

    Stachó, László

    Previous Up Next Article Citations From References: 0 From Reviews: 0 MR561879 (81d:62015) 62E20 for the volume of the intersection of an n-dimensional simplex and an n-dimensional ball is also given. {For

  16. Previous Up Next Article From References: 0

    E-Print Network [OSTI]

    Stachó, László

    Previous Up Next Article Citations From References: 0 From Reviews: 0 MR1261496 (94k:49008) 49J35 of f on X × co(Y ). Here, co(Y ) is a certain simplex defined in the space of all real-valued functions

  17. Previous Up Next Article From References: 12

    E-Print Network [OSTI]

    Ghys, Étienne

    Previous Up Next Article Citations From References: 12 From Reviews: 3 MR939473 (89e:55015) 55N35(M, R) is the cohomology of singular cochains whose value on a singular simplex is bounded independent of the simplex. From the work of Gromov, one knows that bounded cohomology interacts in a delicate manner

  18. Positional reference system for ultraprecision machining

    DOE Patents [OSTI]

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

    1982-01-01T23:59:59.000Z

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

  19. Positional reference system for ultraprecision machining

    DOE Patents [OSTI]

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

    1980-09-12T23:59:59.000Z

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

  20. REFERENCE GUIDE ENERGY CONSERVATION ASSISTANCE ACT (ECAA)

    E-Print Network [OSTI]

    with this requirement. Waste management guidance and plan template can be downloaded at http://www.energy that generate waste. Attachments: Energy Commission Waste Management Plan Guidance Waste Management Plan1 REFERENCE GUIDE ENERGY CONSERVATION ASSISTANCE ACT (ECAA) STATE ENERGY PROGRAM (SEP) AMERICAN