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1

Acoustic Logs | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil Jump to: navigation, searchAcciona SAAclaraAcoustic Logs

2

Dual excitation acoustic paramagnetic logging tool  

DOE Patents [OSTI]

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

Vail, W.B. III.

1989-02-14T23:59:59.000Z

3

Acoustic Waveform Logging - Advances In Theory And Application  

E-Print Network [OSTI]

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 ...

Cheng, C. H.

4

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

Open Energy Info (EERE)

to permeability in the reservoir. Acoustic image logs reveal a similar natural fracture population, but generally image slightly fewer fractures, and do not reveal rock...

5

Numerical simulation of borehole acoustic logging in the frequency and time domains with hp-adaptive finite elements  

E-Print Network [OSTI]

and for the improvement of acoustic logging techniques used by oil- and oil-service companies to detect and quantifyNumerical simulation of borehole acoustic logging in the frequency and time domains with hp Available online 8 January 2009 Keywords: Acoustic logging Borehole acoustics Wave propagation Linear

Torres-Verdín, Carlos

6

acoustic drillhole logging: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

7

Film Badge Application Radioactive Material Package Receipt Log  

E-Print Network [OSTI]

;RADIOACTIVE MATERIAL PACKAGE RECEIPT LOG DATE: DELIVERED BY: AUTHORIZED BY: Contamination Check DPM/100 cm2APPENDIX A Film Badge Application Radioactive Material Package Receipt Log Radioactive Material Package Receipt Form (Off-Campus Locations) Radiation / Contamination Survey Form #12;PERSONNEL MONITORING

Slatton, Clint

8

Piezoelectric materials used in underwater acoustic transducers  

SciTech Connect (OSTI)

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.

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

2012-07-07T23:59:59.000Z

9

Scanning acoustic microscopy for mapping the microstructure of soft materials  

E-Print Network [OSTI]

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.

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

2009-04-30T23:59:59.000Z

10

Acoustic velocity measurements in materials using a regenerative method  

DOE Patents [OSTI]

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.

Laine, Edwin F. (Alamo, CA)

1986-01-01T23:59:59.000Z

11

Acoustic-velocity measurements in materials using a regenerative method  

DOE Patents [OSTI]

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.

Laine, E.F.

1982-09-30T23:59:59.000Z

12

Structural Health Monitoring of Smart Composite Material by Acoustic Emission  

E-Print Network [OSTI]

Structural Health Monitoring of Smart Composite Material by Acoustic Emission S. Masmoudia , A. El composite structures gives the opportunity to develop smart materials for health monitoring systems and to follow the evolution of these various mechanisms for both types of materials (with and without sensors

Paris-Sud XI, Université de

13

acoustic materials: Topics by E-print Network  

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

acoustic materials 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 A prototype homogenization model for...

14

Velocity determination from multireceiver full-waveform acoustic-logging data  

E-Print Network [OSTI]

&IOGRAVI A. The Sonic-Logging Tool B. KVaveform Characteristics III DETECTION OF ARRIVALS AND VELOCITY ?IEASURE'CLIENTS . Velocitv Determination illethods B. Semblance Processing C. Selection of Parameters for Semblance Processing D. Comparison... CONCLUSIONS REFERENCES. VITA Page 92 100 LIST OF TABLES Table 1. Input parameters for synthetic sonic waveforms. 2. Values of semblance at the compressional, shear and Stoneley peaks with and without energy normalization. 3. 'Aleasurements...

Ramanlal, Kirti Kumar

2012-06-07T23:59:59.000Z

15

Acoustic Logs At The Needles Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara JumpLogs Activity Date

16

Wireline logging tool catalog  

SciTech Connect (OSTI)

This book provides discussions on wireline logging tools. The contents are resistivity, radioactivity, acoustic, formation dip and borehold geometry, formation sampling, and auxiliary services.

Verdier, M.

1986-01-01T23:59:59.000Z

17

Experimental and numerical evaluation of electromagnetic acoustic transducer performance on steel materials  

E-Print Network [OSTI]

Experimental and numerical evaluation of electromagnetic acoustic transducer performance on steel 2011 Keywords: Electromagnetic Acoustic Transducers Magnetostriction Lorentz force Steel a b s t r a c of the test object. A wide variety of steel materials is employed in many industrial applications, so

Nagy, Peter B.

18

Lateral acoustic wave resonator comprising a suspended membrane of low damping resonator material  

SciTech Connect (OSTI)

A very high-Q, low insertion loss resonator can be achieved by storing many overtone cycles of a lateral acoustic wave (i.e., Lamb wave) in a lithographically defined suspended membrane comprising a low damping resonator material, such as silicon carbide. The high-Q resonator can sets up a Fabry-Perot cavity in a low-damping resonator material using high-reflectivity acoustic end mirrors, which can comprise phononic crystals. The lateral overtone acoustic wave resonator can be electrically transduced by piezoelectric couplers. The resonator Q can be increased without increasing the impedance or insertion loss by storing many cycles or wavelengths in the high-Q resonator material, with much lower damping than the piezoelectric transducer material.

Olsson, Roy H.; El-Kady; , Ihab F.; Ziaei-Moayyed, Maryam; Branch; , Darren W.; Su; Mehmet F.,; Reinke; Charles M.,

2013-09-03T23:59:59.000Z

19

Acoustic Character Of Hydraulic Fractures In Granite  

E-Print Network [OSTI]

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 ...

Paillet, Frederick I.

1983-01-01T23:59:59.000Z

20

Surface Acoustic Waves in an Infinite Plate of Functionally Graded Materials  

E-Print Network [OSTI]

and thermal constants, to improve certain functions like thermal resistance and local strength in variousSurface Acoustic Waves in an Infinite Plate of Functionally Graded Materials Ji Wang, Lehui Zhou, and Jianke Du Piezoelectric Device Laboratory, Mechanics and Materials Science Research Center, School

Wang, Ji

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic impedance measurements  

DOE Patents [OSTI]

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material.

Langlois, Gary N. (Richland, WA)

1983-09-13T23:59:59.000Z

22

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic-impedance measurements. [Patent application  

DOE Patents [OSTI]

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material are presented. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material.

Not Available

1981-06-10T23:59:59.000Z

23

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic impedance measurements  

DOE Patents [OSTI]

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material are disclosed. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material. 6 figs.

Langlois, G.N.

1983-09-13T23:59:59.000Z

24

Change Log  

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

Log NERSC-8 Trinity Benchmarks Change Log 09032013 Correction applied to MiniDFT web-page (to remove inconsistency with MiniDFT README). Capability Improvement measurements...

25

Monitoring Thermal Fatigue Damage In Nuclear Power Plant Materials Using Acoustic Emission  

SciTech Connect (OSTI)

Proactive aging management of nuclear power plant passive components requires technologies to enable monitoring and accurate quantification of material condition at early stages of degradation (i.e., pre-macrocrack). Acoustic emission (AE) is well-suited to continuous monitoring of component degradation and is proposed as a method to monitor degradation during accelerated thermal fatigue tests. A key consideration is the ability to separate degradation responses from external sources such as water spray induced during thermal fatigue testing. Water spray provides a significant background of acoustic signals, which can overwhelm AE signals caused by degradation. Analysis of AE signal frequency and energy is proposed in this work as a means for separating degradation signals from background sources. Encouraging results were obtained by applying both frequency and energy filters to preliminary data. The analysis of signals filtered using frequency and energy provides signatures exhibiting several characteristics that are consistent with degradation accumulation in materials. Future work is planned to enable verification of the efficacy of AE for thermal fatigue crack initiation detection. While the emphasis has been placed on the use of AE for crack initiation detection during accelerated aging tests, this work also has implications with respect to the use of AE as a primary tool for early degradation monitoring in nuclear power plant materials. The development of NDE tools for characterization of aging in materials can also benefit from the use of a technology such as AE which can continuously monitor and detect crack initiation during accelerated aging tests.

Meyer, Ryan M.; Ramuhalli, Pradeep; Watson, Bruce E.; Pitman, Stan G.; Roosendaal, Timothy J.; Bond, Leonard J.

2012-04-26T23:59:59.000Z

26

Shear-horizontal surface acoustic wave phononic device with high density filling material for ultra-low power sensing applications  

SciTech Connect (OSTI)

Finite element simulations of a phononic shear-horizontal surface acoustic wave (SAW) sensor based on ST 90-X Quartz reveal a dramatic reduction in power consumption. The phononic sensor is realized by artificially structuring the delay path to form an acoustic meta-material comprised of a periodic microcavity array incorporating high-density materials such as tantalum or tungsten. Constructive interference of the scattered and secondary reflected waves at every microcavity interface leads to acoustic energy confinement in the high-density regions translating into reduced power loss. Tantalum filled cavities show the best performance while tungsten inclusions create a phononic bandgap. Based on our simulation results, SAW devices with tantalum filled microcavities were fabricated and shown to significantly decrease insertion loss. Our findings offer encouraging prospects for designing low power, highly sensitive portable biosensors.

Richardson, M.; Bhethanabotla, V. R., E-mail: bhethana@usf.edu [Department of Chemical and Biomedical Engineering, University of South Florida, Tampa, Florida 33620 (United States); Sankaranarayanan, S. K. R. S. [Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2014-06-23T23:59:59.000Z

27

Multiple-frequency acoustic wave devices for chemical sensing and materials characterization in both gas and liquid phase  

DOE Patents [OSTI]

A chemical sensor (1) includes two or more pairs of interdigital electrodes (10) having different periodicities. Each pair is comprised of a first electrode (10a) and a second electrode (10b). The electrodes are patterned on a surface of a piezoelectric substrate (12). Each pair of electrodes may launch and receive various acoustic waves (AW), including a surface acoustic wave (SAW), and may also launch and receive several acoustic plate modes (APMs). The frequencies associated with each are functions of the transducer periodicity as well as the velocity of the particular AW in the chosen substrate material. An AW interaction region (13) exists between each pair of electrodes. Circuitry (20, 40) is used to launch, receive, and monitor the propagation characteristics of the AWs and may be configured in an intermittent measurement fashion or in a continuous measurement fashion. Perturbations to the AW velocity and attenuation are recorded at several frequencies and provide the sensor response.

Martin, Stephen J. (Albuquerque, NM); Ricco, Antonio J. (Albuquerque, NM)

1993-01-01T23:59:59.000Z

28

Theory of acoustic attenuation, dispersion, and pulse propagation in unconsolidated granular materials including  

E-Print Network [OSTI]

Theory of acoustic attenuation, dispersion, and pulse propagation in unconsolidated granular of particles in contact with a new, rough-surface, random-packing model of mineral grains in unconsolidated

Buckingham, Michael

29

Log Summarization  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D E F GSecurityLog

30

Effects of liquid pore water on acoustic wave propagation in snow as a Biot-type porous material  

E-Print Network [OSTI]

A method to estimate phase velocity and attenuation of acoustic waves in the presence of liquid water in a snowpack is presented. The method is based on Biot's theory of wave propagation in porous materials. Empirical relations and a priori information is used to characterize snow as a porous material as a function of porosity. Plane wave theory and an equivalent pore fluid are used to solve Biot's differential equations and to asses the impact of the air and water in the pore space. The liquid water in the pore space of a snow pack reduces the velocity of the first compressional wave by roughly 300 m/s for every 0.1 increase in liquid water saturation. Also the attenuation of the compressional waves is increased with increasing liquid water content. Two end member models for compaction are evaluated to asses the importance of an independent density measurement for an estimate of liquid pore water saturation in snow with acoustic waves. The two end members correspond to no compaction at all and to a melting s...

Sidler, Rolf

2015-01-01T23:59:59.000Z

31

ILLEGAL LOGGING IN INDONESIA  

E-Print Network [OSTI]

ILLEGAL LOGGING IN INDONESIA THE ENVIRONMENTAL, ECONOMIC AND SOCIAL COSTS #12;ILLEGAL LOGGING IN INDONESIA THE ENVIRONMENTAL, ECONOMIC AND SOCIAL COSTS Contents Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 #12;ILLEGAL LOGGING IN INDONESIA | 2 Executive Summary Indonesia's rainforests are the third

32

SHORE-BASED LOG PROCESSING Bottom felt: 2308 mbrf  

E-Print Network [OSTI]

seems to be the best measurement of the acoustic velocity of the formation. Quality Control During the processing, data quality control is performed mainly by cross-correlation of all logging data. Large (>12 inSITE 1050 769 SHORE-BASED LOG PROCESSING HOLE 1050C Bottom felt: 2308 mbrf Total penetration: 606

33

Acoustic metafluids Andrew N. Norrisa  

E-Print Network [OSTI]

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

Norris, Andrew

34

Generation of ultrahigh frequency acoustic waves for the characterization of complex materials  

E-Print Network [OSTI]

A discussion of the anomalous low-temperature thermal properties of amorphous materials is first given as a theoretical framework in which the rest of the thesis is treated. The theory models the form and function of ...

Choi, Jaime Dawn, 1976-

2005-01-01T23:59:59.000Z

35

Impedance matched joined drill pipe for improved acoustic transmission  

DOE Patents [OSTI]

An impedance matched jointed drill pipe for improved acoustic transmission. A passive means and method that maximizes the amplitude and minimize the temporal dispersion of acoustic signals that are sent through a drill string, for use in a measurement while drilling telemetry system. The improvement in signal transmission is accomplished by replacing the standard joints in a drill string with joints constructed of a material that is impedance matched acoustically to the end of the drill pipe to which it is connected. Provides improvement in the measurement while drilling technique which can be utilized for well logging, directional drilling, and drilling dynamics, as well as gamma-ray spectroscopy while drilling post shot boreholes, such as utilized in drilling post shot boreholes.

Moss, William C. (San Mateo, CA)

2000-01-01T23:59:59.000Z

36

Simulation of borehole acoustic measurements in axisymmetric media with hp-adaptive finite ele-Christian Michler, Leszek Demkowicz, and Carlos Torres-Verdin, University of Texas at Austin  

E-Print Network [OSTI]

and for the improvement of acoustic logging techniques used by oil- and oil- service companies to detect and quantify the efficacy of acoustic logging tech- niques and to computationally estimating elastic formation properties methodology for the simulation of bore- hole acoustic measurements. INTRODUCTION Acoustic logging is a central

Torres-Verdín, Carlos

37

Multiple-frequency acoustic wave devices for chemical sensing and materials characterization in both gas and liquid phase  

DOE Patents [OSTI]

A chemical or intrinsic physical property sensor is described comprising: (a) a substrate; (b) an interaction region of said substrate where the presence of a chemical or physical stimulus causes a detectable change in the velocity and/or an attenuation of an acoustic wave traversing said region; and (c) a plurality of paired input and output interdigitated electrodes patterned on the surface of said substrate where each of said paired electrodes has a distinct periodicity, where each of said paired electrodes is comprised of an input and an output electrode; (d) an input signal generation means for transmitting an input signal having a distinct frequency to a specified input interdigitated electrode of said plurality so that each input electrode receives a unique input signal, whereby said electrode responds to said input signal by generating an acoustic wave of a specified frequency, thus, said plurality responds by generating a plurality of acoustic waves of different frequencies; (e) an output signal receiving means for determining an acoustic wave velocity and an amplitude of said acoustic waves at several frequencies after said waves transverses said interaction region and comparing these values to an input acoustic wave velocity and an input acoustic wave amplitude to produce values for perturbations in acoustic wave velocities and for acoustic wave attenuation as a function of frequency, where said output receiving means is individually coupled to each of said output interdigitated electrode; (f) a computer means for analyzing a data stream comprising information from said output receiving means and from said input signal generation means to differentiate a specified response due to a perturbation from a subsequent specified response due to a subsequent perturbation to determine the chemical or intrinsic physical properties desired.

Martin, S.J.; Ricco, A.J.

1993-08-10T23:59:59.000Z

38

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

DOE Patents [OSTI]

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.

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

2001-01-01T23:59:59.000Z

39

Acoustic transducer  

DOE Patents [OSTI]

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.

Drumheller, D.S.

1997-12-30T23:59:59.000Z

40

Acoustic transducer  

DOE Patents [OSTI]

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.

Drumheller, Douglas S. (Cedar Crest, NM)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

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

E-Print Network [OSTI]

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...

Chang, Cheng-Chung

2014-07-08T23:59:59.000Z

42

Acoustic well cleaner  

DOE Patents [OSTI]

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.

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

43

NMR logging apparatus  

DOE Patents [OSTI]

Technologies including NMR logging apparatus and methods are disclosed. Example NMR logging apparatus may include surface instrumentation and one or more downhole probes configured to fit within an earth borehole. The surface instrumentation may comprise a power amplifier, which may be coupled to the downhole probes via one or more transmission lines, and a controller configured to cause the power amplifier to generate a NMR activating pulse or sequence of pulses. Impedance matching means may be configured to match an output impedance of the power amplifier through a transmission line to a load impedance of a downhole probe. Methods may include deploying the various elements of disclosed NMR logging apparatus and using the apparatus to perform NMR measurements.

Walsh, David O; Turner, Peter

2014-05-27T23:59:59.000Z

44

Modes of log gravity  

SciTech Connect (OSTI)

The physical modes of a recently proposed D-dimensional 'critical gravity', linearized about its anti-de Sitter vacuum, are investigated. All 'log mode' solutions, which we categorize as 'spin-2' or 'Proca', arise as limits of the massive spin-2 modes of the noncritical theory. The linearized Einstein tensor of a spin-2 log mode is itself a 'nongauge' solution of the linearized Einstein equations whereas the linearized Einstein tensor of a Proca mode takes the form of a linearized general coordinate transformation. Our results suggest the existence of a holographically dual logarithmic conformal field theory.

Bergshoeff, Eric A.; Rosseel, Jan [Centre for Theoretical Physics, University of Groningen, Nijenborgh 4, 9747 AG Groningen (Netherlands); Hohm, Olaf [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Townsend, Paul K. [Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)

2011-05-15T23:59:59.000Z

45

Porous Materials Porous Materials  

E-Print Network [OSTI]

1 Porous Materials x Porous Materials · Physical properties * Characteristic impedance p = p 0 e -jk xa- = vej[ ] p x - j ; Zc= p ve = c ka 0k = c 1-j #12;2 Porous Materials · Specific acoustic impedance Porous Materials · Finite thickness ­ blocked p e + -jk (x-d)a p e - jk (x-d)a d x #12

Berlin,Technische Universität

46

Reconstruction of the three mechanical material constants of a lossy fluid-like cylinder from low-frequency scattered acoustic fields  

E-Print Network [OSTI]

The inverse medium problem for a circular cylindrical domain is studied using low-frequency acoustic waves as the probe radiation. It is shown that to second order in $k_{0}a$ ($k_{0}$ the wavenumber in the host medium, $a$ the radius of the cylinder), only the first three terms (i.e., of orders 0, -1 and +1) in the partial wave representation of the scattered field are non-vanishing, and the material parameters enter into these terms in explicit manner. Moreover, the zeroth-order term contains only two of the unknown material constants (i.e., the real and imaginary parts of complex compressibility of the cylinder $\\kappa_{1}$) whereas the $\\pm 1$ order terms contain the other material constant (i.e., the density of the cylinder $\\rho_{1}$). A method, relying on the knowledge of the totality of the far-zone scattered field and resulting in explicit expressions for $\\rho_{1}$ and $\\kappa_{1}$, is devised and shown to give highly-accurate estimates of these quantities even for frequencies such that $k_{0}a$ is ...

Scotti, T; Scotti, Thierry; Wirgin, Armand

2003-01-01T23:59:59.000Z

47

,"_' ",',-i_~ :FORESTRY AND LOGGING  

E-Print Network [OSTI]

":~I> ", .' '. ,"_' ",',-i_~ . :FORESTRY AND LOGGING Hcscarch on Plantation Species A Positive in plantation forestry. par- ticularly in the tropics and the Southern Hemisphere. in the past 30 years plantation forestry. Indeed, one could list many exam- ples of such problems that have plagued exotic

48

Log data comparison and quantification  

SciTech Connect (OSTI)

Two geothermal wells were logged with similar wireline logs by several logging companies in a period of five years (1974 to 1979). The results of these equivalent logs are quantitatively different and in some cases qualitatively different. This difference also occurs between the same type of logs recorded at different time intervals by the same logging company. These various log data are related and qualified when logging equipment has not been properly calibrated. All depths referred to for either well are from their respective kelly bushing (KB). The first well (Mesa 31-1) is in the Imperial Valley of California and penetrates a sand, shale, and clay sedimentary lithology with a maximum temperature of 165/sup 0/C (330/sup 0/F) and a total depth of 1882 m (6175 ft). The second well (Phillips 9-1) is in the Roosevelt Hot Springs known geothermal resource areas (KGRA) of southwestern Utah and penetrates hydrothermally altered (low-grade metamorphic) and igneous lithology with a maximum temperature of 225/sup 0/C (440/sup 0/F) and a toatl depth of 2098.5 m (6885 ft). During that period (1974 to 1979) calibration of logging equipment in metamorphic and igneous lithologies could not be done. The logging data from this well is not qualitatively comparable in all cases and indicates the need for calibration. The open-hole log data acquired from Mesa 31-1 and Phillips 9-1 wells were compared to core data from these wells and comparison factors were calculated to better quantify the open-hole log data. Then open-hole log data were compared to the cased-hole log data from various companies and additional comparison factors were calculated for the cased-hole log data. These comparison factors allow for some quantification of these uncalibrated log data.

Mathews, M.; LaDelfe, C.

1981-01-01T23:59:59.000Z

49

Grid Logging: Best Practices Guide  

SciTech Connect (OSTI)

The purpose of this document is to help developers of Grid middleware and application software generate log files that will be useful to Grid administrators, users, developers and Grid middleware itself. Currently, most of the currently generated log files are only useful to the author of the program. Good logging practices are instrumental to performance analysis, problem diagnosis, and security auditing tasks such as incident tracing and damage assessment. This document does not discuss the issue of a logging API. It is assumed that a standard log API such as syslog (C), log4j (Java), or logger (Python) is being used. Other custom logging API or even printf could be used. The key point is that the logs must contain the required information in the required format. At a high level of abstraction, the best practices for Grid logging are: (1) Consistently structured, typed, log events; (2) A standard high-resolution timestamp; (3) Use of logging levels and categories to separate logs by detail and purpose; (4) Consistent use of global and local identifiers; and (5) Use of some regular, newline-delimited ASCII text format. The rest of this document describes each of these recommendations in detail.

Tierney, Brian L; Tierney, Brian L; Gunter, Dan

2008-04-01T23:59:59.000Z

50

Logging in to Edison  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D E F GSecurityLogCenter

51

Logging in to Hopper  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D E FLogging in Logging in to

52

Cross-Dipole Acoustic Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to:InformationCrandall,CriteriaCrookston

53

Acoustic Logs At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara Jump to:Acomita Lake,Jump

54

Acoustic Logs At Coso Geothermal Area (2005) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara Jump to:Acomita Lake,Jump)

55

Acoustic Logs At Raft River Geothermal Area (1979) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara Jump

56

Category:Cross-Dipole Acoustic Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade SierraStatus Status ofCore Analysis

57

Laser-excited acoustic oscillations in silver and bismuth nanowires  

E-Print Network [OSTI]

Coherent acoustic oscillations in Bi and Ag nanowire samples were studied with a femtosecond pump-probe technique and detection of the scattered light. The observed optical and acoustic properties reflect the nanostructure of these materials...

Jerebtsov, Sergey N.; Kolomenskii, Alexandre A.; Liu, Haidong; Zhang, Hong; Ye, Zuxin; Luo, Zhiping; Wu, Wenhao; Paulus, Gerhard G.; Schuessler, Hans A.

2007-01-01T23:59:59.000Z

58

Methods and apparatus for multi-parameter acoustic signature inspection  

DOE Patents [OSTI]

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.

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

59

Grid Logging: Best Practices Guide  

E-Print Network [OSTI]

Revision date: March 1, 2008 Grid Logging: Best Practicesis to help developers of Grid middleware and applicationlog files that will be useful to Grid administrators, users,

Tierney, Brian L

2008-01-01T23:59:59.000Z

60

G8 Illegal Logging Dialogue G8 Illegal Logging Dialogue  

E-Print Network [OSTI]

Logging Dialogue Legislator-driven policy action · partnership of committed legislators from all major representatives · agree practical policy actions to address illegal logging and sustainable forest management civil society organisations Bnnbnbnnb nbnb nbnbs Dialogue participants ­ India ­ Indonesia ­ Malaysia

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

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

E-Print Network [OSTI]

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

Buckingham, Michael

62

Acoustic Characterization of Mesoscale Objects  

SciTech Connect (OSTI)

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.

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

2007-03-13T23:59:59.000Z

63

Microfabricated bulk wave acoustic bandgap device  

DOE Patents [OSTI]

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).

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

2010-06-08T23:59:59.000Z

64

Microfabricated bulk wave acoustic bandgap device  

DOE Patents [OSTI]

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).

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

65

Acoustic Heating Peter Ulmschneider  

E-Print Network [OSTI]

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

Ulmschneider, Peter

66

Acoustically enhanced heat exchange and drying apparatus  

DOE Patents [OSTI]

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.

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

1989-01-01T23:59:59.000Z

67

LOG HAZARD REGRESSION Huiying Sun  

E-Print Network [OSTI]

LOG HAZARD REGRESSION by Huiying Sun Ph.D, Harbin Institute of Technology, Harbin, CHINA, 1991 .................................................................... .................................................................... .................................................................... .................................................................... THE UNIVERSITY OF BRITISH COLUMBIA September, 1999 c flHuiying Sun, 1999 #12; Abstract We propose using

Heckman, Nancy E.

68

Acoustically enhanced heat exchange and drying apparatus  

DOE Patents [OSTI]

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.

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

1987-07-10T23:59:59.000Z

69

Log quality enhancement: A systematic assessment of logging company wellsite performance and log quality  

SciTech Connect (OSTI)

To improve the monitoring of logging company performance, computer programs were developed to assess information en masse from log quality check lists completed on wellsite by the service company engineer and Phillips representative. A study of all logging jobs performed by different service companies for Phillips in Oklahoma (panhandle excepted) during 1982 enabled several pertinent and beneficial interpretations to be made. Company A provided the best tool and crew service. Company B incurred an excessive amount of lost time related to tool failure, in particular the neutron-density tool combination. Company C, although used only three times, incurred no lost time. With a reasonable data base valid conclusions were made pertaining, for example, to repeated tool malfunctions. The actual logs were then assessed for quality.

Farnan, R.A.; Mc Hattie, C.M.

1984-01-01T23:59:59.000Z

70

Comparison of anuran acoustic communities of two habitat types in the Danum Valley Conservation Area,  

E-Print Network [OSTI]

Comparison of anuran acoustic communities of two habitat types in the Danum Valley Conservation frequency and demand acoustic adaptations to increase the signal-to-noise ratio. Selective logging represents a major threat to stream-breeding anurans in Sabah. Pollution of clear water threatens the stream

Hödl, Walter

71

LogRank: Summarizing Social Activity Logs Abhijith Kashyap  

E-Print Network [OSTI]

of Barack Obama (managed by his re-election campaign staff). Figure 1 shows a small selection of posts from network profile. With time, the activity logs of users, which record the sequences of social activities in most OSNs, records and displays users' activities (e.g., posts, status updates, comments). The Wall

Hristidis, Vagelis

72

Detecting Botnets Through Log Correlation  

E-Print Network [OSTI]

Botnets, which consist of thousands of compromised machines, can cause significant threats to other systems by launching Distributed Denial of Service (SSoS) attacks, keylogging, and backdoors. In response to these threats, new effective techniques are needed to detect the presence of botnets. In this paper, we have used an interception technique to monitor Windows Application Programming Interface (API) functions calls made by communication applications and store these calls with their arguments in log files. Our algorithm detects botnets based on monitoring abnormal activity by correlating the changes in log file sizes from different hosts.

Al-Hammadi, Yousof

2010-01-01T23:59:59.000Z

73

Acoustic transducer  

DOE Patents [OSTI]

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.

Drumheller, Douglas S. (Cedar Crest, NM)

2000-01-01T23:59:59.000Z

74

Acoustic cryocooler  

SciTech Connect (OSTI)

This patent describes 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 effect 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 maintain a cooling load of 5 W at 80 K.

Swift, G.W.; Martin, R.A.; Radebaugh, R.

1990-09-04T23:59:59.000Z

75

Acoustic cryocooler  

DOE Patents [OSTI]

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.

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

1990-01-01T23:59:59.000Z

76

Acoustic cryocooler  

SciTech Connect (OSTI)

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 maintain a cooling load of 5 W at 80 K. 3 figs.

Swift, G.W.; Martin, R.A.; Radebaugh, R.

1989-09-26T23:59:59.000Z

77

The Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber  

E-Print Network [OSTI]

in Russia, estimated at 808,790,000 hectares, represents 20.5% of total global forest area and almost halfSharfofLogExports(%) Figure 1. Russian softwood log exports represent over a quarter of total global log exports. SourceThe Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber CINTRAFOR News

78

Materials  

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

2 MAG LAB REPORTS Volume 18 No. 1 CONDENSED MATTER SCIENCE Technique development, graphene, magnetism & magnetic materials, topological insulators, quantum fl uids & solids,...

79

Chemical logging of geothermal wells  

DOE Patents [OSTI]

The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.

Allen, Charles A. (Idaho Falls, ID); McAtee, Richard E. (Idaho Falls, ID)

1981-01-01T23:59:59.000Z

80

Photoelastic study of acoustic wave propagation in grain Xavier Noblin, Guillaume Huillard and Jean Rajchenbach  

E-Print Network [OSTI]

Photoelastic study of acoustic wave propagation in grain packings Xavier Noblin, Guillaume Huillard. By means of photoelasticity, we success in visualizing in real time the propagation of acoustic waves case. Keywords: Granular material, mechanical wave propagation, photoelasticity, nonlinear behavior

Boyer, Edmond

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Energy Citations Database (ECD) - Alerts Log On  

Office of Scientific and Technical Information (OSTI)

Log On You must Log On to use the ECD Alerts. Alerts provide users with e-mail notification of updates to the ECD in specific areas of interest. If you wish to receive an Alert and...

82

Tucker Wireline Open Hole Wireline Logging  

SciTech Connect (OSTI)

The Tucker Wireline unit ran a suite of open hole logs right behind the RMOTC logging contractor for comparison purposes. The tools included Dual Laterolog, Phased Induction, BHC Sonic, and Density-Porosity.

Milliken, M.

2002-05-23T23:59:59.000Z

83

THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL  

E-Print Network [OSTI]

THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION;2 THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION IN INDONESIA high rates of deforestation in Indonesia. Its extent during 1997-98 is analysed using a materials

84

University of Florida Cell Phone Usage Log  

E-Print Network [OSTI]

University of Florida Cell Phone Usage Log Information below must be compared to the monthly statement provided by the cell phone service provider. It is required that this log be completed when of the last page of the usage log. Employee's Name:Business Device - Cell Phone Number: Printed Name

Sin, Peter

85

Evaluation of Non-Nuclear Techniques for Well Logging: Final Report  

SciTech Connect (OSTI)

The focus of this study is the understanding of the technical obstacles that hinder the replacement of and the disadvantages from the loss of extensive interpretation experience based on data accumulated with AmBe. Enhanced acoustic and electromagnetic sensing methods in combination with non-isotope-based well logging techniques have the potential to complement and/or replace existing isotope-based techniques, providing the opportunity to reduce oil industry dependence on isotopic sources such as AmBe.

Bond, Leonard J.; Griffin, Jeffrey W.; Harris, R. V.; Denslow, Kayte M.; Moran, Traci L.

2011-08-01T23:59:59.000Z

86

Illegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests, global climate  

E-Print Network [OSTI]

contracts with logging companies covering more than 15 million hectares of forest," the report stated with logging companies instead giving villages gifts of salt and beer worth less than $100. "In a contextIllegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests

87

LogOS: an Automatic Logging Framework for Service-Oriented Architectures  

E-Print Network [OSTI]

LogOS: an Automatic Logging Framework for Service-Oriented Architectures Stéphane Frénot Université architecture focuses on service oriented log- ging for component based architecture. It focuses on two providers in cases of failures. We motivate the need for an automatic logging framework in service-oriented

Paris-Sud XI, Université de

88

Electret Acoustic Transducer Array For Computerized Ultrasound Risk Evaluation System  

DOE Patents [OSTI]

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.

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

2005-08-09T23:59:59.000Z

89

Log interpretation of shaly sandstones  

E-Print Network [OSTI]

and Gas, Arco Oil and Gas, and Sun Oil Companies for their contributions of cores, logs, and other valuable data. Their contributions were an immense help in formulating and supporting the ideas developed in my study. I also wish to express gratitute... of Water Saturation page . . 78 79 . . 81 . 87 91 93 VI CONCLUSIONS . 104 REFERENCES CITED APPENDIX I REESE INTRACOASTAL LAND ?2 DATA . 107 . . 111 APPENDIX II ARCO HANKAMER 630 ? 1 DATA 133 APPENDIX III SUN SMITH JR. ?8 DATA VITA 152 163...

Baker, Joel Foster

1987-01-01T23:59:59.000Z

90

Density Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1 No38e4011f618bDeer7353872°, -70.1939087° LoadingMoosLog Jump

91

Materials  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selectedContract Research Material

92

Leak checker data logging system  

DOE Patents [OSTI]

A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time. 18 figs.

Gannon, J.C.; Payne, J.J.

1996-09-03T23:59:59.000Z

93

Leak checker data logging system  

DOE Patents [OSTI]

A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time.

Gannon, Jeffrey C. (Arlington, TX); Payne, John J. (Waterman, IL)

1996-01-01T23:59:59.000Z

94

Laser and acoustic lens for lithotripsy  

DOE Patents [OSTI]

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.

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

95

Department of Materials University of Oxford  

E-Print Network [OSTI]

Objective A report: A detailed design proposal which could be used by a manufacturer/company as the basis with your supervisor. #12;Department of Materials University of Oxford Log book Keep all info in a bound log

Paxton, Anthony T.

96

Acoustics by additive manufacturing:.  

E-Print Network [OSTI]

??This study focuses on exploring the merging field of additive manufacturing and acoustics and introduces a new type of sound absorber which is regulating performance (more)

Setaki, F.

2012-01-01T23:59:59.000Z

97

Phonon diodes and transistors from magneto-acoustics  

E-Print Network [OSTI]

By sculpting the magnetic field applied to magneto-acoustic materials, phonons can be used for information processing. Using a combination of analytic and numerical techniques, we demonstrate designs for diodes (isolators) ...

Sklan, Sophia Robin

98

CORRUPTION AND ILLEGAL LOGGING IN THE WOOD  

E-Print Network [OSTI]

CORRUPTION AND ILLEGAL LOGGING IN THE WOOD PRODUCTS MARKET: the Italian experience in controlling Science 7 May 2004 Paper organization 1. State of the problem 2. Are Italian companies involved in deforestation and trade of illegal logging? 3. Which are the most affected countries? 4. Why do we need

Pettenella, Davide

99

Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal logging  

E-Print Network [OSTI]

Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal Organization (ITTO), shippers in Indonesia are threatening to stop transporting logs if the government insists harvesting affects 700,000-850,000 hectares of forest per year in Indonesia, but widespread illegal logging

100

SOME RESULTS ON SCATTERING FOR LOG-SUBCRITICAL AND LOG-SUPERCRITICAL  

E-Print Network [OSTI]

SOME RESULTS ON SCATTERING FOR LOG-SUBCRITICAL AND LOG-SUPERCRITICAL NONLINEAR WAVE EQUATIONS HSI equations. First, we consider the H1 x ? L2 x scattering theory for the energy log- subcritical wave regularity) Sobolev space. We include also some observation about scattering in the energy subcritical case

Weinberger, Hans

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Drag reduction in coal log pipelines  

SciTech Connect (OSTI)

It is well-known that solutions of dissolved long-chain macromolecules produce lower friction or drag losses than with the solvent alone. In coal log pipeline (CLP), water is the conveying medium. Synthetic polymers such as poly(ethylene oxide) have been dissolved in water and tested for their extent of drag reduction as a function of concentration and other variables. Lab-scale experimental results for CLP indicate substantial drag reduction at low concentration levels of polymer. But, the macromolecules exhibit degradation under mechanical shear stresses. The large molecules break into smaller units. This degradation effect causes a loss of drag reduction. However, high levels of drag reduction can be maintained as follows: (1) by injecting polymer into the CLP at several locations along the pipeline, (2) by injecting polymer of different particle sizes, (3) by using more robust types of polymers, or (4) by using polymer-fiber mixtures. This report presents the value of drag-reducing agents in terms of pumping power net cost savings. In addition, this report outlines the environmental impact of drag reduction polymers, and end-of-pipeline water treatment processes. For an operating CLP, hundreds of miles in length, the use of poly(ethylene oxide) as a drag reducing agent provides significant pumping power cost savings at a minimal materials cost.

Marrero, T.R.; Liu, H. [Univ. of Missouri, Columbia, MO (United States). Capsule Pipeline Research Center

1996-12-31T23:59:59.000Z

102

Acoustic cooling engine  

DOE Patents [OSTI]

An acoustic cooling engine with improved thermal performance and reduced internal losses comprises a compressible fluid contained in a resonant pressure vessel. The fluid has a substantial thermal expansion coefficient and is capable of supporting an acoustic standing wave. A thermodynamic element has first and second ends and is located in the resonant pressure vessel in thermal communication with the fluid. The thermal response of the thermodynamic element to the acoustic standing wave pumps heat from the second end to the first end. The thermodynamic element permits substantial flow of the fluid through the thermodynamic element. An acoustic driver cyclically drives the fluid with an acoustic standing wave. The driver is at a location of maximum acoustic impedance in the resonant pressure vessel and proximate the first end of the thermodynamic element. A hot heat exchanger is adjacent to and in thermal communication with the first end of the thermodynamic element. The hot heat exchanger conducts heat from the first end to portions of the resonant pressure vessel proximate the hot heat exchanger. The hot heat exchanger permits substantial flow of the fluid through the hot heat exchanger. The resonant pressure vessel can include a housing less than one quarter wavelength in length coupled to a reservoir. The housing can include a reduced diameter portion communicating with the reservoir. The frequency of the acoustic driver can be continuously controlled so as to maintain resonance.

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

1988-01-01T23:59:59.000Z

103

Illegal Logging and Related Trade  

E-Print Network [OSTI]

are the responsibility of the authors. All rights reserved. No part of this publication may be reproduced or transmitted by Stephen Austin and Sons Ltd The material selected for the printing of this report is Elemental Chlorine framework 14 3.1.3 Checks and balances 16 3.1.4 International trade cooperation 18 3.1.5 Ensuring a balance

104

Acoustical heat pumping engine  

DOE Patents [OSTI]

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.

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

1983-08-16T23:59:59.000Z

105

Acoustical heat pumping engine  

DOE Patents [OSTI]

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.

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

1983-08-16T23:59:59.000Z

106

Final Report: Geothermal Dual Acoustic Tool for Measurement of Rock Stress  

SciTech Connect (OSTI)

This paper outlines the technology need for a rock formation stress measurement in future EGS wells. This paper reports on the results of work undertaken under a Phase I, DOE/SBIR on the feasibility to build an acoustic well logging tool for measuring rock formation stress.

Normann, Randy A.

2014-12-01T23:59:59.000Z

107

Logging-while-coring method and apparatus  

DOE Patents [OSTI]

A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.

Goldberg, David S. (New York, NY); Myers, Gregory J. (Cornwall, NY)

2007-11-13T23:59:59.000Z

108

CMLOG: A common message logging system  

SciTech Connect (OSTI)

The Common Message Logging (CMLOG) system is an object-oriented and distributed system that not only allows applications and systems to log data (messages) of any type into a centralized database but also lets applications view incoming messages in real-time or retrieve stored data from the database according to selection rules. It consists of a concurrent Unix server that handles incoming logging or searching messages, a Motif browser that can view incoming messages in real-time or display stored data in the database, a client daemon that buffers and sends logging messages to the server, and libraries that can be used by applications to send data to or retrieve data from the database via the server. This paper presents the design and implementation of the CMLOG system meanwhile it will also address the issue of integration of CMLOG into existing control systems.

Chen, J.; Akers, W.; Bickley, M.; Wu, D.; Watson, W. III [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States). Control Software Group

1997-12-01T23:59:59.000Z

109

Compact acoustic refrigerator  

DOE Patents [OSTI]

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.

Bennett, G.A.

1992-11-24T23:59:59.000Z

110

Compact acoustic refrigerator  

DOE Patents [OSTI]

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.

Bennett, Gloria A. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

111

Manager's Signature Log Privacy Impact Assessment, Office of...  

Office of Environmental Management (EM)

Manager's Signature Log Privacy Impact Assessment, Office of Science Chicago Office Manager's Signature Log Privacy Impact Assessment, Office of Science Chicago Office Manager's...

112

alfa activity log: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

113

abandoned logging roads: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

114

annual logging symposium: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

115

activity log files: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

116

automatic log sorting: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

117

Green Energy Resources Inc formerly New York International Log...  

Open Energy Info (EERE)

International Log Lumber Company Jump to: navigation, search Name: Green Energy Resources Inc (formerly New York International Log & Lumber Company) Place: San Antonio, Texas...

118

Design and demonstration of broadband thin planar diffractive acoustic lenses  

SciTech Connect (OSTI)

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.

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

119

Spacetime transformation acoustics  

E-Print Network [OSTI]

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.

C. Garca-Meca; S. Carloni; C. Barcel; G. Jannes; J. Snchez-Dehesa; A. Martnez

2014-07-08T23:59:59.000Z

120

Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia  

E-Print Network [OSTI]

Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study of PrimorskyPrimorsky RegionRegion AlexeyAlexey MorozovMorozov Greenpeace RussiaGreenpeace Russia http://www region: 2000 #12;RUSSIA Official Responses 7 of July 2000 Head of Nature Resource Committee

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia  

E-Print Network [OSTI]

Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study of PrimorskyPrimorsky RegionRegion AlexeyAlexey MorozovMorozov Greenpeace RussiaGreenpeace Russia #12;Primorsky #12;RUSSIA Official Responses 7 of July 2000 Head of Nature Resource Committee of the Primorsky

122

Autonomous adaptive acoustic relay positioning  

E-Print Network [OSTI]

We consider the problem of maximizing underwater acoustic data transmission by adaptively positioning an autonomous mobile relay so as to learn and exploit spatial variations in channel performance. The acoustic channel ...

Cheung, Mei Yi, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

123

Prospects for Reduced Impact Logging in Central African logging concessions Driss Ezzine de Blas *, Manuel Ruiz Perez 1  

E-Print Network [OSTI]

prices and increasing demand (Karsenty, 2006a). As a fresh wave of logging companies have resumedProspects for Reduced Impact Logging in Central African logging concessions Driss Ezzine de Blas potential, future expansion and industrialisation of the Central African logging sector: ``Dans un avenir

124

Navjot's nightmare revisited: logging, agriculture, and biodiversity  

E-Print Network [OSTI]

forests. Conversely, conversion of primary or logged forests to plantation crops, such as oil palm, causes the biodiversity of this region. Our analysis also suggests that, because South- east Asian forests are tightly and replaced with a nonforest landcover (e.g., agriculture including oil palm and rubber, timber plantations

Vermont, University of

125

Advertise Subscribe Log in Register Advanced search  

E-Print Network [OSTI]

Advertise Subscribe Log in Register Advanced search Home News Comment Special reports People power Europe does not need nuclear power to meet its future energy needs. Question of nuclear subsidies-reduction target would be better. Blowing away nuclear power Europe does not need nuclear power to meet its future

126

Indonesia to fight illegal logging Kurniawan Hari  

E-Print Network [OSTI]

Indonesia to fight illegal logging Kurniawan Hari The government should set up a task force to deal another $8.1 billion. "Indonesia's economy will collapse if these evil practices are not stopped," Ermaya in the current fiscal year and was three times Indonesia's foreign debt budget. Commission members said the sand

127

2011 Daily Log Report #: 2011-00261  

E-Print Network [OSTI]

2011 Daily Log May 2011 Report #: 2011-00261 Reported: 05/31/2011 1300 Occurred: Same Incident: Medical Emergency Location: University Center Disposition: Report--Closed Comments: Male transported to hospital by ambulance for evaluation and treatment. No Reportable Activity on 05/30/2011 No Reportable

Boyce, Richard L.

128

2009 Daily Log Report #: 2009-00327  

E-Print Network [OSTI]

2009 Daily Log June 2009 Report #: 2009-00327 Reported: 06/30/09 1118 Occurred: Same Incident: Fire/Smoke Alarm Location: Dorm--Kentucky Hall Disposition: Report--Closed Comments: Alarm activation caused by drywall dust from contractors; fire department responded and cleared the scene. No Reportable Activity

Boyce, Richard L.

129

2010 Daily Log Report #: 2010-00221  

E-Print Network [OSTI]

2010 Daily Log April 2010 Report #: 2010-00221 Reported: 04/30/10 1034 Occurred: Same Incident: Found/Recovered Property Location: Founders Hall Disposition: Report--Closed Comments: Small purse was found in classroom. Report #: 2010-00220 Reported: 04/30/10 1347 Occurred: 04/30/10 0820 to 0900

Boyce, Richard L.

130

2011 Daily Log Report #: 2011-00295  

E-Print Network [OSTI]

2011 Daily Log June 2011 Report #: 2011-00295 Reported: 6/30/2011 0813 Occurred: 6/29/2011 1430 Incident: Traffic Crash Location: Sidewalk on Plaza Level Disposition: Report--Closed Comments: Single vehicle accident; no injuries. Report #: 2011-00294 Reported: 06/29/2011 1909 Occurred: Same Incident

Boyce, Richard L.

131

2011 Daily Log Report #: 2011-00317  

E-Print Network [OSTI]

2011 Daily Log July 2011 Report #: 2011-00317 Reported: 07/30/2011 1446 Occurred: 07/30/2011 1435 Incident: Odor Related Complaint Location: Power Plant Disposition: Report--Closed Comments: Subject reported a strange odor emanating from somewhere in the vicinity; fire department responded and cleared

Boyce, Richard L.

132

2010 Daily Log Report #: 2010-00262  

E-Print Network [OSTI]

2010 Daily Log June 2010 Report #: 2010-00262 Reported: 06/30/10 0957 Occurred: 06/24/10 1630 to 0957 Incident: Theft Location: Founders Hall Disposition: Report--Open Comments: Several textbooks stolen from office. No Reportable Activity on 06/29/10 Report #: 2010-00261 Reported: 06/28/10 1720

Boyce, Richard L.

133

2010 Daily Log Report #: 2010-00165  

E-Print Network [OSTI]

2010 Daily Log March 2010 Report #: 2010-00165 Reported: 03/31/10 1525 Occurred: 03/31/10 1520 Incident: Traffic Crash Location: Nunn Drive Disposition: Report--Closed Comments: Two vehicle accident; vehicle towed; no injuries. Report #: 2010-00164 Reported: 03/31/10 1121 Occurred: 03/31/10 0800 to 1100

Boyce, Richard L.

134

2011 Daily Log Report #: 2011-00168  

E-Print Network [OSTI]

2011 Daily Log March 2011 Report #: 2011-00168 Reported: 03/31/2011 1237 Occurred: 03/31/2011 1235 Incident: Medical Emergency Location: Outside of Student Union Disposition: Report--Closed Comments: Female transported to hospital by ambulance for medical treatment. Report #: 2011-00167 Reported: 03/31/2011 1116

Boyce, Richard L.

135

2009 Daily Log Report #: 2009-00202  

E-Print Network [OSTI]

2009 Daily Log March 2009 Report #: 2009-00202 Reported: 03/31/09 2045 Occurred: 03/29/09 1400 to 03/30/09 2000 Incident: Theft Location: Lot Q Disposition: Report--Open Comments: GPS System stolen from unlocked vehicle. Report #: 2009-00201 Reported: 03/31/09 1833 Occurred: Same Incident: Fire

Boyce, Richard L.

136

2009 Daily Log Report #: 2009-00269  

E-Print Network [OSTI]

2009 Daily Log April 2009 Report #: 2009-00269 Reported: 04/30/09 1508 Occurred: Same Incident: Traffic Crash Location: Johns Hill Road and Kenton Drive Disposition: Report--Closed Comments: Two vehicle accident; no injuries. Report #: 2009-00268 Reported: 04/30/09 1049 Occurred: Same Incident: Traffic Crash

Boyce, Richard L.

137

2011 Daily Log Report #: 2011-00229  

E-Print Network [OSTI]

2011 Daily Log April 2011 Report #: 2011-00229 Reported: 04/29/2011 2327 Occurred: 04/29/2011 2325 Incident: Medical Emergency Location: University Center Disposition: Report--Closed Comments: Female transported by ambulance to hospital for medical treatment. Report #: 2011-00228 Reported: 04/29/2011 1702

Boyce, Richard L.

138

Monthly Tank Inspection Log Name of Campus  

E-Print Network [OSTI]

Monthly Tank Inspection Log Name of Campus Street Address of Campus City, State, and Zip Code of Campus 1 of 2 1. Facility PBS Registration Number 6. DISTRIBUTE TO : 2. Tank Number 3. Tank Registered(S) Satisfactory Repair or Adjustment Required Not Applicable Additional Comments Attached ABOVEGROUND STORAGE TANK

Rosen, Jay

139

Cross-Dipole Acoustic Log At Alum Area (Moos & Ronne, 2010) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin:2003) |Cordova39.Crockett, California:CrookCross

140

COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis a city in ChittendenPartners LLC JumpCO2e Capital

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Acoustic Logs At Alum Area (Moos & Ronne, 2010) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara Jump to:Acomita Lake,

142

Acoustic Logs At Newberry Caldera Area (Combs, Et Al., 1999) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop,SaveWhiskeyEnergy InformationAclara Jump to:Acomita

143

Acoustic Logs At Steamboat Springs Area (Combs, Et Al., 1999) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil Jump to: navigation, searchAcciona SAAclara

144

INSPIRE and SPIRES Log File Analysis  

SciTech Connect (OSTI)

SPIRES, an aging high-energy physics publication data base, is in the process of being replaced by INSPIRE. In order to ease the transition from SPIRES to INSPIRE it is important to understand user behavior and the drivers for adoption. The goal of this project was to address some questions in regards to the presumed two-thirds of the users still using SPIRES. These questions are answered through analysis of the log files from both websites. A series of scripts were developed to collect and interpret the data contained in the log files. The common search patterns and usage comparisons are made between INSPIRE and SPIRES, and a method for detecting user frustration is presented. The analysis reveals a more even split than originally thought as well as the expected trend of user transition to INSPIRE.

Adams, Cole; /Wheaton Coll. /SLAC

2012-08-31T23:59:59.000Z

145

Identification of Avalanche Precursors by Acoustic Probing in the Bulk of Tilted Granular Layers  

E-Print Network [OSTI]

Identification of Avalanche Precursors by Acoustic Probing in the Bulk of Tilted Granular Layers M simultaneously caracterize precursors on the free surface with an optical method and in the bulk with acoustic to probe rearrangements in the bulk of the granular material. A linear method can also be used provided

Paris-Sud XI, Université de

146

Megasonic cleaning of wafers in electrolyte solutions: Possible role of electro-acoustic and cavitation effects  

E-Print Network [OSTI]

-acoustic and cavitation effects M. Keswani a , S. Raghavan a,*, P. Deymier a , S. Verhaverbeke b a Materials Science Keywords: Wafer Cleaning Electrolyte Megasonic Electro-acoustic Cavitation Pressure amplitude a b s t r a c Waals adhesion forces. The effect of ionic strength on cavitation has been investigated through

Deymier, Pierre

147

Chiral Gravity, Log Gravity and Extremal CFT  

E-Print Network [OSTI]

We show that the linearization of all exact solutions of classical chiral gravity around the AdS3 vacuum have positive energy. Non-chiral and negative-energy solutions of the linearized equations are infrared divergent at second order, and so are removed from the spectrum. In other words, chirality is confined and the equations of motion have linearization instabilities. We prove that the only stationary, axially symmetric solutions of chiral gravity are BTZ black holes, which have positive energy. It is further shown that classical log gravity-- the theory with logarithmically relaxed boundary conditions --has finite asymptotic symmetry generators but is not chiral and hence may be dual at the quantum level to a logarithmic CFT. Moreover we show that log gravity contains chiral gravity within it as a decoupled charge superselection sector. We normally evaluate the Euclidean sum over geometries of chiral gravity and show that it gives precisely the holomorphic extremal CFT partition function. The modular invariance and integrality of the expansion coefficients of this partition function are consistent with the existence of an exact quantum theory of chiral gravity. We argue that the problem of quantizing chiral gravity is the holographic dual of the problem of constructing an extremal CFT, while quantizing log gravity is dual to the problem of constructing a logarithmic extremal CFT.

Alexander Maloney; Wei Song; Andrew Strominger

2009-03-26T23:59:59.000Z

148

Chiral gravity, log gravity, and extremal CFT  

SciTech Connect (OSTI)

We show that the linearization of all exact solutions of classical chiral gravity around the AdS{sub 3} vacuum have positive energy. Nonchiral and negative-energy solutions of the linearized equations are infrared divergent at second order, and so are removed from the spectrum. In other words, chirality is confined and the equations of motion have linearization instabilities. We prove that the only stationary, axially symmetric solutions of chiral gravity are BTZ black holes, which have positive energy. It is further shown that classical log gravity--the theory with logarithmically relaxed boundary conditions--has finite asymptotic symmetry generators but is not chiral and hence may be dual at the quantum level to a logarithmic conformal field theories (CFT). Moreover we show that log gravity contains chiral gravity within it as a decoupled charge superselection sector. We formally evaluate the Euclidean sum over geometries of chiral gravity and show that it gives precisely the holomorphic extremal CFT partition function. The modular invariance and integrality of the expansion coefficients of this partition function are consistent with the existence of an exact quantum theory of chiral gravity. We argue that the problem of quantizing chiral gravity is the holographic dual of the problem of constructing an extremal CFT, while quantizing log gravity is dual to the problem of constructing a logarithmic extremal CFT.

Maloney, Alexander [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Song Wei [Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190 (China); Center for the Fundamental Laws of Nature Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138 (United States); Strominger, Andrew [Center for the Fundamental Laws of Nature Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138 (United States)

2010-03-15T23:59:59.000Z

149

Geophysical logging case history of the Raft River geothermal...  

Open Energy Info (EERE)

logging case history of the Raft River geothermal system, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical logging case history of the...

150

Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details...

151

Section 12: Waves and acoustics 1 Section 12: Waves and acoustics  

E-Print Network [OSTI]

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

Kohlenbach, Ulrich

152

Truck acoustic data analyzer system  

DOE Patents [OSTI]

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.

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

2006-07-04T23:59:59.000Z

153

Acoustic cavitation and its chemical consequences  

E-Print Network [OSTI]

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

Suslick, Kenneth S.

154

SHORE-BASED LOG PROCESSING Bottom felt: 4781 mbrf  

E-Print Network [OSTI]

resolution data were recorded in Hole 1065A. Quality Control During the processing, quality controlSITE 1065 1 SHORE-BASED LOG PROCESSING Hole 1065A Bottom felt: 4781 mbrf Total penetration: 617 mbsf Total core recovered: 46.5 m (12.4%) Logging Runs Logging string 1: DIT/HLDT/APS/HNGS (main

155

The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says  

E-Print Network [OSTI]

The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says by Irwan Firdaus, The Associated Press January 15th, 2003 JAKARTA, Indonesia -- Corruption in Indonesia's police and military has contributed to a surge in illegal logging that has

156

Category:Caliper Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade SierraStatus Status of casesCaliper Log page? For

157

Category:Chemical Logging | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade SierraStatus Status of casesCaliper Log page?

158

Category:Neutron Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to:Lists Jump to: Jump to:page?Neutron Log

159

The electron geodesic acoustic mode  

SciTech Connect (OSTI)

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.

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

160

Sound Science: Taking Action with Acoustics  

ScienceCinema (OSTI)

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.

Sinha, Dipen

2014-07-21T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Sound Science: Taking Action with Acoustics  

SciTech Connect (OSTI)

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.

Sinha, Dipen

2014-07-16T23:59:59.000Z

162

Results concerning the use of seismic and well log data for defining the geological model of the productive structures on the Romanian Continental Shelf of the Black Sea  

SciTech Connect (OSTI)

The contribution of the 3D seismics on the East-Lebada Structure of the Romanian Continental Shelf of the Black Sea, together with the complex well logging have led to the improvement of the reservoir geological model. The interpretation has been performed on 3d seismic profiles. Time migrated profiles were interpreted, by means of the program system OASIIS. The acoustic logging data were used for calibration, in order to identify the reflections corresponding to the geological boundary. By means of these reflections on the seismic profiles, the adequate geological model has been defined. A system of tectonic accidents which were not known till now were rendered evident. The interpretation of the complex well loggings, through the Well Log Analysis Program System - Express - allowed to determine the petrophysical-petrographical parameters necessary for reservoir evaluation, in correlation with core analysis. Thus, four horizons corresponding to the Albian age with favorable collector properties were rendered evident, in alternance with unfavorable collector properties zones. The well logs, performed at different time periods and with different tools were corrected and standardized for the well environment conditions and, depending on the logging program, different program modules were used to obtain the most adequate results. The parameter averaging performed by zones, for each well, together with the image furnished by the seismic data, allowed us to build the final geometrical and isoparametric model of the reservoir, used for further reservoir simulation. Based on the results obtained, the analysis was extended to West-Lebada Structure.

Babskow, A.; Baleanu, I.; Popa, D. [Institute for Research and Technology, Prahova (Romania)] [and others

1995-08-01T23:59:59.000Z

163

Opto-acoustic thrombolysis  

DOE Patents [OSTI]

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.

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

164

Annual Logging Symposium, June 22-26, 2013 MULTIDETECTOR LWD SIGMA LOGGING PRINCIPLES,  

E-Print Network [OSTI]

different detectors, environmental effects, and best practices. We analyze Monte Carlo simulations and test. A multidetector Logging-While-Drilling (LWD) Sigma design provides insight into the presence of invasion for a wide range of formations under typical LWD drilling conditions. Finally, a comparison is made of LWD

Torres-Verdín, Carlos

165

Single crystal metal wedges for surface acoustic wave propagation  

DOE Patents [OSTI]

An ultrasonic testing device has been developed to evaluate flaws and inhomogeneities in the near-surface region of a test material. A metal single crystal wedge is used to generate high frequency Rayleigh surface waves in the test material surface by conversion of a slow velocity, bulk acoustic mode in the wedge into a Rayleigh wave at the metal-wedge test material interface. Particular classes of metals have been found to provide the bulk acoustic modes necessary for production of a surface wave with extremely high frequency and angular collimation. The high frequency allows flaws and inhomogeneities to be examined with greater resolution. The high degree of angular collimation for the outgoing ultrasonic beam permits precision angular location of flaws and inhomogeneities in the test material surface.

Fisher, E.S.

1980-05-09T23:59:59.000Z

166

Single crystal metal wedges for surface acoustic wave propagation  

DOE Patents [OSTI]

An ultrasonic testing device has been developed to evaluate flaws and inhomogeneities in the near-surface region of a test material. A metal single crystal wedge is used to generate high frequency Rayleigh surface waves in the test material surface by conversion of a slow velocity, bulk acoustic mode in the wedge into a Rayleigh wave at the metal-wedge test material interface. Particular classes of metals have been found to provide the bulk acoustic modes necessary for production of a surface wave with extremely high frequency and angular collimation. The high frequency allows flaws and inhomogeneities to be examined with greater resolution. The high degree of angular collimation for the outgoing ultrasonic beam permits precision angular location of flaws and inhomogeneities in the test material surface.

Fisher, Edward S. (Wheaton, IL)

1982-01-01T23:59:59.000Z

167

Creating Wave-Focusing Materials  

E-Print Network [OSTI]

Basic ideas for creating wave-focusing materials by injecting small particles in a given material are described. The number of small particles to be injected around any point is calculated. Inverse scattering problem with fixed wavenumber and fixed incident direction of the plane acoustic wave is formulated and solved.

A. G. Ramm

2008-05-16T23:59:59.000Z

168

Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell, Et Al., 1988) Exploration...

169

Compilation of network activity logs on a DECnet host  

SciTech Connect (OSTI)

Log files are created for all incoming connection requests on a DECnet host. These log files contain connection data such as the requesting source, destination, and throughput. The procedures (referred to as collect software) outlined in this report, were written to collect these log files, to extract the essential information, and to condense the data into one-line records. The two VAX/VMS systems at SNLA that currently run these procedures compile network transaction logs on a weekly basis. This document is intended for VAX/VMS system managers who wish to install, and possibly modify, this software.

George, M.

1987-07-01T23:59:59.000Z

170

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications  

Broader source: Energy.gov [DOE]

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications presentation at the April 2013 peer review meeting held in Denver, Colorado.

171

Geophysical logs from water wells in the Yakima area, Washington  

SciTech Connect (OSTI)

The logs include: natural gamma, gamma gamma, neutron neutron, neutron gamma, caliper, fluid temperature, fluid resistivity, wall resistivity, spontaneous potential, and flow meter.

Biggane, J.H.

1983-01-01T23:59:59.000Z

172

Knowledge-based stratigraphic well-log correlation  

E-Print Network [OSTI]

represents the formations, and new rules for the knowledge-base that can correlate formations in reservoirs with secondary stratification. This expert system has correlated ovei' 3, 500 ft. of well-log data from three different types of rock sequences... inspirational support. TABLE OF CONTENTS Page ABSTRACT nl DEDICATION ACKNOWLEDGEMENT TABLE OF CONTENTS LIST OF TABLES x1 LIST OF FIGURES xl1 CHAPTER I ? INTRODUCTION 1. 1 Well-Logs 1. 2 Stratigraphic Well-Log Correlation . 1. 3 Well-Log Correlation...

Denton, Michael A.

1990-01-01T23:59:59.000Z

173

Selecting The Optimal Logging Suite For Geothermal Reservoir...  

Open Energy Info (EERE)

were adequate to detect stratigraphic features. Density, photo-electric factor (PEF), neutron, and gamma ray (GR) logs provided sufficient information to clearly delineate...

174

Portable GPS Baseband Logging Morgan Quigley, Stanford University  

E-Print Network [OSTI]

Portable GPS Baseband Logging Morgan Quigley, Stanford University Pieter Abbeel, Stanford Dennis Akos, University of Colorado Andrew Y. Ng, Stanford University BIOGRAPHY Morgan Quigley and Pieter

Ng, Andrew Y.

175

Portable GPS Baseband Logging Morgan Quigley, Stanford University  

E-Print Network [OSTI]

Portable GPS Baseband Logging Morgan Quigley, Stanford University Pieter Abbeel, Stanford Dennis Akos, University of Colorado Andrew Y. Ng, Stanfod University BIOGRAPHY Morgan Quigley and Pieter

Stanford University

176

Partnership Logging Accidents Cornelis de Hoop, LA Forest Products Lab  

E-Print Network [OSTI]

Partnership Logging Accidents by Cornelis de Hoop, LA Forest Products Lab Albert Lefort Agreement 1998 & 1999 Accident Reports 25 injuries reported 185 loggers signed up 8 deaths 1999

177

Acoustically Enhanced Boiling Heat Transfer  

E-Print Network [OSTI]

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.

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

2008-01-07T23:59:59.000Z

178

A comparison of the moisture gauge and the neutron log in air-filled holes at NTS  

SciTech Connect (OSTI)

Two methods are commonly used to measure water content of geologic materials by neutron diffusion, the moisture gauge and the neutron log. Both are used at NTS, the moisture gauge in tunnels, the neutron log in vertical drilled holes. In this work, the moisture gauge and the neutron log are compared for use in air-filled holes NTS. The measurement instruments have evolved with very different operational characteristics and one important physics difference, the source to detector spacing. The moisture gauge has a very short, 0--6 cm spacing, with little internal shielding, and count increases with water. The neutron log has a long spacing, 30--50 cm, substantial internal shielding, and exhibits decreasing count with increasing water. The moisture gauge gives better bed resolution than the neutron log. Because its count increases with water, the moisture gauge is more strongly affected by water in the borehole, especially in dry formations. In these conditions the neutron log is the method of choice. In air-filled holes, if source size or logging time is not a constraint, the relative sensitivity of the two tools to water is determined by the relative strengths of borehole effects as fluid, holesize, or tool-wall gap. If source size is a constraint for safety reasons, the short spacing provides higher countrates for a given detector efficiency and thus better relative precision in determining the true count. If source size is limited because of detector or electronics saturation, the short spacing will be better at high water content, while the long spacing will be better at low water content. The short spacing may have an advantage because it can make better contact with the hole wall and can be more easily corrected for gap. The long spacing tool is currently used in vertical holes at NTS because that is the only tool available from logging contractors. Since they are most concerned with high water contents, the short spacing tool could prove to be better.

Hearst, J.R.; Carlson, R.C.

1993-08-01T23:59:59.000Z

179

Illegal Logging and Illegal Activites in the Forestry Sector  

E-Print Network [OSTI]

Illegal Logging and Illegal Activites in the Forestry Sector : Overview and Possible Issues, China #12;Quebec Wood Export Bureau Why Illegal logging and illegal activities ? ­ Threats for our export members companies ? · Unfair competition ? · New trade barriers ? Literature review ­ Data

180

Preprocessing and Mining Web Log Data for Web Personalization  

E-Print Network [OSTI]

Preprocessing and Mining Web Log Data for Web Personalization M. Baglioni1 , U. Ferrara2 , A. Romei/26, 56017 S. Martino Ulmiano (PI) Italy ferrara@ksolutions.it Abstract. We describe the web usage mining behaviour of a web site users. The models are inferred from the access logs of a web server by means of data

Ruggieri, Salvatore

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Reflective echo tomographic imaging using acoustic beams  

DOE Patents [OSTI]

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.

Kisner, Roger; Santos-Villalobos, Hector J

2014-11-25T23:59:59.000Z

182

Acoustic imaging microscope  

DOE Patents [OSTI]

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.

Deason, Vance A.; Telschow, Kenneth L.

2006-10-17T23:59:59.000Z

183

Multimaterial acoustic fibers  

E-Print Network [OSTI]

The emergence of multimaterial fibers that combine a multiplicity of solid materials with disparate electrical, optical, and mechanical properties into a single fiber presents new opportunities for extending fiber applications ...

Chocat, Nomie

2012-01-01T23:59:59.000Z

184

Spring 2011 ME706 Acoustics and Aerodynamic Sound ME706 Acoustics and Aerodynamic Sound  

E-Print Network [OSTI]

Spring 2011 ME706 Acoustics and Aerodynamic Sound ME706 Acoustics and Aerodynamic Sound Instructor-surface interaction. Spring 2011 1 ME706 Acoustics and Aerodynamic Sound #12;Spring 2011 ME706 Acoustics and Aerodynamic Sound Students are expected to: · Exhibit a level of mathematical maturity roughly equivalent

185

IN ACOUSTICS UndergraduateCourses2015  

E-Print Network [OSTI]

APPLYING SOUND KNOWLEDGE IN ACOUSTICS Acoustics UndergraduateCourses2015 #12;SOUTHA 2 #12;Reach-leadingacademicsoncoursesthataredesignedaroundyou. Wegetyoureadyfortheglobaljobsmarket,whilegivingyouagreat studentexperience. Acousticalcountriestoreducenoise REDUCING AIRCRAFT NOISE OurRollsRoyceUniversity TechnologyCentreforGas Turbine

Sóbester, András

186

Acoustic data transmission through a drill string  

DOE Patents [OSTI]

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.

Drumheller, D.S.

1988-04-21T23:59:59.000Z

187

Acoustic signal estimation using multiple blind observations  

E-Print Network [OSTI]

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 ...

Lee, Joonsung

2006-01-01T23:59:59.000Z

188

Particle analysis in an acoustic cytometer  

DOE Patents [OSTI]

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.

Kaduchak, Gregory; Ward, Michael D

2012-09-18T23:59:59.000Z

189

Geothermal well log interpretation state of the art. Final report  

SciTech Connect (OSTI)

An in-depth study of the state of the art in Geothermal Well Log Interpretation has been made encompassing case histories, technical papers, computerized literature searches, and actual processing of geothermal wells from New Mexico, Idaho, and California. A classification scheme of geothermal reservoir types was defined which distinguishes fluid phase and temperature, lithology, geologic province, pore geometry, salinity, and fluid chemistry. Major deficiencies of Geothermal Well Log Interpretation are defined and discussed with recommendations of possible solutions or research for solutions. The Geothermal Well Log Interpretation study and report has concentrated primarily on Western US reservoirs. Geopressured geothermal reservoirs are not considered.

Sanyal, S.K.; Wells, L.E.; Bickham, R.E.

1980-01-01T23:59:59.000Z

190

Gas sensing with acoustic devices  

SciTech Connect (OSTI)

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.

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

191

Multi-reflective acoustic wave device  

DOE Patents [OSTI]

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.

Andle, Jeffrey C.

2006-02-21T23:59:59.000Z

192

Toxic species evolution from guayule fireplace logs  

E-Print Network [OSTI]

those identified are compounds belonging to the chemical 23 TABLE 1 Gases Used to Calibrate Gas Chromatograph COMPOUND TIME WINDOIIP Hydrogen Propane Propene Isobutane N-butane Bute ne Trans-butane Cis-butane Carbon Dioxide Ethene Oxygen... MATERIAL COMBUSTION PRODUCT Natural Matenals Formaldehydes Acetaldehydes Acro(ein Wood Methane Propane Butane Hexane Heptane Octane 1, 3 - Butadiene Sultur dioxide Red Oak Nitrogen dioxide White Pine Methane Ethylene Propylene Methyl alcohol...

Soderman, Kristi Lee

1988-01-01T23:59:59.000Z

193

JOBAID-LOGGING IN TO THE OLC LEARNING SYSTEM  

Broader source: Energy.gov [DOE]

In this job aid you will Log In to the system, Retrieve Forgotten Password and/or User ID, and Use the LMS Help System built into the application.

194

Secured Pace Web Server with Collaboration and Error Logging Capabilities  

E-Print Network [OSTI]

: Secure Sockets Layer (SSL) using the Java Secure Socket Extension (JSSE) API, error logging............................................................................................ 8 Chapter 3 Secure Pace Web Server with SSL........................................................... 29 3.1 Introduction to SSL

Tao, Lixin

195

Log-domain circuit models of chemical reactions  

E-Print Network [OSTI]

We exploit the detailed similarities between electronics and chemistry to develop efficient, scalable bipolar or subthreshold log-domain circuits that are dynamically equivalent to networks of chemical reactions. Our ...

Mandal, Soumyajit

196

VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________  

E-Print Network [OSTI]

VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________ Door #____________ License Plate ____________________ Vehicle/Supplies (Enter Description such as grade sheets, artifacts, money, etc.) 6. Taking vehicle to Automotive Shop

Yang, Zong-Liang

197

E-Print Network 3.0 - acoustic detection activities Sample Search...  

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

include underwater acoustics... acoustics, acoustic detection and classification of subsea objects and machine reliability. During his visit... unexploded ordnance ... Source:...

198

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project was to characterize the fluid properties and fluid-rock interactions which are needed for formation evaluation by NMR well logging. NMR well logging is finding wide use in formation evaluation. The formation parameters commonly estimated were porosity, permeability, and capillary bound water. Special cases include estimation of oil viscosity, residual oil saturation, location of oil/water contact, and interpretation on whether the hydrocarbon is oil or gas.

Hirasaki, George J.; Mohanty, Kishore K.

2003-02-10T23:59:59.000Z

199

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project was to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity.

Hirasaki, George J.; Mohanty, Kishore K.

2003-02-10T23:59:59.000Z

200

Keyboard Acoustic Emanations Scott Leishman  

E-Print Network [OSTI]

of this step is the matrix. After that, the Viterbi algorithm [11] is used to infer qi, i.e. the best sequenceKeyboard Acoustic Emanations Scott Leishman ML Tea Talk - May 3rd, 2006 1 (or why you shouldn

Roweis, Sam

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

E-Print Network 3.0 - acoustic oscillation signature Sample Search...  

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

47 ACOUSTICAL EFFECTS OF INTERNAL TIDES ACOUSTICAL EFFECTS OF INTERNAL TIDES ON SHALLOW WATER Summary: ACOUSTICAL EFFECTS OF INTERNAL TIDES ACOUSTICAL EFFECTS OF INTERNAL TIDES...

202

Nonlinear dust acoustic waves and shocks  

SciTech Connect (OSTI)

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.

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

203

Materials Characterization  

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

This department develops capabilities and methods in non-destructive evaluation (NDE) for such applications. These methods include laser-methodologies that use acoustic,...

204

Non-radial instabilities of isothermal Bondi accretion with a shock: vortical-acoustic cycle vs post-shock acceleration  

E-Print Network [OSTI]

The linear stability of isothermal Bondi accretion with a shock is studied analytically in the asymptotic limit of high incident Mach number M_1. The flow is unstable with respect to radial perturbations as expected by Nakayama (1993), due to post-shock acceleration. Its growth time scales like the advection time from the shock r_sh to the sonic point r_son. The growth rate of non-radial perturbations l=1 is higher by a factor M_1^{2/3}, and is therefore intermediate between the advection and acoustic frequencies. Besides these instabilities based on post-shock acceleration, our study revealed another generic mechanism based on the cycle of acoustic and vortical perturbations between the shock and the sonic radius, independently of the sign of post-shock acceleration. The vortical-acoustic instability is fundamentally non-radial. It is fed by the efficient excitation of vorticity waves by the isothermal shock perturbed by acoustic waves. The growth rate exceeds the advection rate by a factor log M_1. Unstable modes cover a wide range of frequencies from the fundamental acoustic frequency ~c/r_sh up to a cut-off ~c/r_son associated with the sonic radius. The highest growth rate is reached for l=1 modes near the cut-off. The additional cycle of acoustic waves between the shock and the sonic radius is responsible for variations of the growth rate by a factor up to 3 depending on its phase relative to the vortical-acoustic cycle. The instability also exists, with a similar growth rate, below the fundamental acoustic frequency down to the advection frequency, as vorticity waves are efficiently coupled to the region of pseudosound. These results open new perspectives to address the stability of shocked accretion flows.

T. Foglizzo

2002-06-17T23:59:59.000Z

205

assistant-based clinical log: Topics by E-print Network  

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

Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

206

Quantification of Wellbore Leakage Risk Using Non?destructive Borehole Logging Techniques  

SciTech Connect (OSTI)

Well integrity is important at all potential CCS locations and may play a crucial role establishing leakage risk in areas where there is a high density of existing wells that could be impacted by the storage operations including depleted petroleum fields where EOR or CCS will occur. To address a need for risk quantification methods that can be directly applied to individual wells using borehole logging tools a study was conducted using data from five wells in Wyoming. The objectives of the study were: Objective 1 Develop methods to establish the baseline flow parameters (porosity and permeability or mobility) from individual measurements of the material properties and defects in a well. Objective 2 Develop a correlation between field flow?property data and cement logs that can be used to establish the flow?properties of well materials and well features using cement mapping tools. Objective 3 Establish a method that uses the flow?property model (Objective 2) to analyze the statistical uncertainties associated with individual well leakage that can provide basis for uncertainty in risk calculations. The project objectives were met through the logging of five wells in Carbon and Natrona County Wyoming to collect data that was used to estimate individual and average well flow properties and model the results using ultrasonic data collected during the logging. Three of the five wells provided data on point and average flow properties for well annuli. Data from the other two wells were used to create models of cement permeability and test whether information collected in one well could be used to characterize another well. The results of the in?situ point measurements were confirmed by the lab measurements sidewall cores collected near the same depths Objective 1 was met using the data collected through logging, testing, and sampling. The methods were developed that can establish baseline flow parameters of wells by both point and average test methods. The methods to estimate the flow properties modeling of point pressure tests, modeling of vertical interference tests, and laboratory measurement of cased?hole sidewall cores The wells were in sufficiently good shape to allow the development of the characterization methods while still having enough defects to study differences in results as they relate to well integrity. Samples and tests analyzed from three of five wells studied in showed the cements were largely intact and had not degraded from exposure native brines. Log results taken in conjunction with the core measurements indicate that interfaces and/or problems with cement placement due to eccentering provide preferential flow paths for fluids, which can increase the effective permeability of the barrier several orders of magnitude above the permeability of intact cement. The results of the maps created using logging tools indicating that the cement condition and bond are generally good identify a need for more research to understand how logs can be used to predict effective well permeabilities such as those measured by the VITs in this study.

Duguid, Andrew; Butsch, Robert; Cary, J.; Celia, Michael; Chugunov, Nikita; Gasda, Sarah; Hovorka, Susan; Ramakrishnan, T. S.; Stamp, Vicki; Thingelstad, Rebecca; Wang, James

2014-05-31T23:59:59.000Z

207

Harnessing fluid-structure interactions to design self-regulating acoustic metamaterials  

SciTech Connect (OSTI)

The design of phononic crystals and acoustic metamaterials with tunable and adaptive wave properties remains one of the outstanding challenges for the development of next generation acoustic devices. We report on the numerical and experimental demonstration of a locally resonant acoustic metamaterial with dispersion characteristics, which autonomously adapt in response to changes of an incident aerodynamic flow. The metamaterial consists of a slender beam featuring a periodic array or airfoil-shaped masses supported by a linear and torsional springs. The resonance characteristics of the airfoils lead to strong attenuation at frequencies defined by the properties of the airfoils and the speed on the incident fluid. The proposed concept expands the ability of existing acoustic bandgap materials to autonomously adapt their dispersion properties through fluid-structure interactions, and has the potential to dramatically impact a variety of applications, such as robotics, civil infrastructures, and defense systems.

Casadei, Filippo [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Bertoldi, Katia [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Kavli Institute for Bionano Science, Harvard University, Cambridge, Massachusetts 02138 (United States)

2014-01-21T23:59:59.000Z

208

Acoustic studies for alpha background rejection in dark matter bubble chamber detectors  

SciTech Connect (OSTI)

COUPP (Chicagoland Observatory for Underground Particle Physics) is an experiment with bubble chambers able to detect dark matter directly either with Spin-Dependent or with Spin-Independent interactions. The target material is a superheated liquid (usually CF3I) that can be bubble nucleated due to nuclear recoils produced by elastic collisions of dark matter particles. The bubble growth inside the chamber is accompanied with an acoustic signature. The acoustic technique has been successfully used to have a good alpha discrimination (about 99%). In this paper, we present different studies and results related with the characterization of the acoustic properties of the detector and the different phenomena involved in the acoustic measurements of the bubble growth, such as sound generation, sound transmission and optimization of piezoelectric transducers.

Bou-Cabo, M.; Felis, I.; Ardid, M.; Collaboration: COUPP Collaboration

2013-08-08T23:59:59.000Z

209

Acoustic radiation force on a double-layer microsphere by a Gaussian focused beam  

SciTech Connect (OSTI)

A new model for calculating the radiation force on double-layer microsphere is proposed based on the ray acoustics approach. The axial acoustic radiation force resulting from a focused Gaussian beam incident on spherical shells immersed in water is examined theoretically in relation to its thickness and the contents of its double-layer. The attenuation both in the water and inside the sphere is considered in this method, which cannot be ignored while the high frequency ultrasonic is used. Results of numerical calculations are presented for fat and low density polyethylene materials, with the hollow region filled with animal oil, water, or air. These results show how the acoustic impedance and the sound velocity of both layers, together with the thickness of the shell, affect the acoustic radiation force.

Wu, Rongrong; Cheng, Kaixuan; Liu, Jiehui; Mao, Yiwei; Gong, Xiufen [Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093 (China); Liu, Xiaozhou, E-mail: xzliu@nju.edu.cn [Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093 (China); State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190 (China)

2014-10-14T23:59:59.000Z

210

Recognition and delineation of Paleokarst zones by the use of wireline logs in the bitumen-saturated upper Devonian Grosmont formation of Northeastern Alberta, Canada  

SciTech Connect (OSTI)

The Upper Devonian Grosmont Formation in northeastern Alberta, Canada, is a shallow-marine carbonate platform complex that was subaerially exposed for hundreds of millions of years between the Mississippian(?) and Cretaceous. During this lengthy exposure period, an extensive karst system developed that is characterized by an irregular erosional surface, meter-size (several feet) dissolution cavities, collapse breccias, sinkholes, paleosols, and fractures. The karsted Grosmont Formation, which contains giant reserves of bitumen, sub-crops beneath Cretaceous clastic sediments of the giant Athabasca tar sands deposit. The paleokarst in the Grosmont Formation can be recognized on wireline logs in relatively nonargillaceous carbonate intervals (<30 API units on the gamma-ray log) as excursions of the caliper log, off-scale neutron-density porosity readings, and severe cycle skipping of the acoustic log. The paleokarst is more prevalent in the upper units of the Grosmont Formation, and the effects of karstification decrease toward stratigraphically older and deeper units. The paleokarst usually occurs within 35 m (115 ft) of the erosional surface. The reservoir properties of the Grosmont Formation (e.g., thickness, porosity, permeability, and seal effectiveness) are significantly influenced by karstification. Depending upon the location, karstification has either benefited or degraded the reservoir characteristics. Benefits include porosity values greater than 40% (up to 100% in caverns) and permeability values of 30,000 md in severely fractured intervals. Detrimental reservoir characteristics include erosion, porosity and permeability reduction, and seal ineffectiveness.

Dembicki, E.A.; Machel, H.G. [Univ. of Alberta, Edmonton, Alberta (Canada)

1996-05-01T23:59:59.000Z

211

Design Parameters of a Miniaturized Piezoelectric Underwater Acoustic Transmitter  

SciTech Connect (OSTI)

The Juvenile Salmon Acoustic Telemetry System (JSATS) project supported by the U.S. Army Corps of Engineers, Portland District, has yielded the smallest acoustic fish tag transmitter commercially available to date. In order to study even smaller fish populations and make the transmitter injectable by needles, the JSATS acoustic micro transmitter needs to be further downsized. As part of the transmitter downsizing effort some of the design parameters of the lead zirconate titanate (PZT) ceramic tube transducer in the transmitter were studied, including the type of PZT, the backing material, the necessary drive voltage, the transmitting bandwidth and the length of the transducer. It was found that, to satisfy the 156-dB source level requirement of JSATS, a square wave with a 10-volt amplitude is required to drive 'soft' PZT transducers. PZT-5H demonstrated the best source level performance. For Navy types I and II, 16 volts or 18 volts were needed. Ethylene-propylene-diene monomer (EPDM) closed-cell foam was found to be the backing material providing the highest source level. The effect of tube length on the source level is also demonstrated in this paper, providing quantitative information for downsizing of small piezoelectric transmitters.

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

2012-07-02T23:59:59.000Z

212

User's manual for geophysical well-logging software programs  

SciTech Connect (OSTI)

Since 1958 the Ground-Water Surveillance Program for the Hanford Site has made geophysical logging measurements in most of the 800 wells and deep boreholes that have been drilled on the Hanford Site. In 1980 the Pacific Northwest Laboratory (PNL), which conducts the Ground-Water Surveillance Program, began forming a computerized data base for storing and retrieving geophysical well log data and developing software for quantitative analysis of the well log data. This report, designed to serve as a user's guide, documents the data base system that handles the well log data. Two programs, DIGLOG1 and LOGIT, are used to manipulate the data. The program DIGLOG1 translates analog paper strip charts into digital format; the program LOGIT is a general utility program that edits, displays, checks, stores, writes, and deletes sets of well log data. These two programs do not provide sophisticated display and analytical capabilities; rather, they provide programs that give the user easy access to powerful standard analytical software.

Petrie, G.M.; Gibson, D.; Blair, S.C.

1983-02-01T23:59:59.000Z

213

The acoustic instabilities in magnetized collisional dusty plasmas  

SciTech Connect (OSTI)

The present work investigates the wave propagation in collisional dusty plasmas in the presence of electric and magnetic field. It is shown that the dust ion-acoustic waves may become unstable to the reactive instability whereas dust-acoustic waves may suffer from both reactive and dissipative instabilities. If the wave phase speed is smaller than the plasma drift speed, the instability is of reactive type whereas in the opposite case, the instability becomes dissipative in nature. Plasma in the vicinity of dust may also become unstable to reactive instability with the instability sensitive to the dust material: dielectric dust may considerably quench this instability. This has implications for the dust charging and the use of dust as a probe in the plasma sheath.

Pandey, B. P., E-mail: birendra.pandey@mq.edu.au [Department of Physics and Astrophysics, Macquarie University, Sydney, NSW 2109 (Australia); Vladimirov, S. V., E-mail: s.vladimirov@physics.usyd.edu.au [Metamaterials Laboratory, National Research University of Information Technology, Mechanics, and Optics, St. Petersburg 199034 (Russian Federation); Dwivedi, C. B., E-mail: jagatpurdwivedi@gmail.com [VedVijnanam Pravartanam Samitihi, Pratapgarh (Awadh), Jagatpur, Bharat (India)

2014-09-15T23:59:59.000Z

214

Acoustic Inspection and Analysis of Liquids in Sealed Containers  

SciTech Connect (OSTI)

This article describes the Acoustic Inspection Device (AID) developed by PNNL which uses acoustic to determine the contents and fill level of sealed containers. AID is a power drill shaped battery operated device fitted with a transducer that sends an ultrasonic pusle through a container of liquid and measure the return echo. The device compares the echo velocity and attnuation and compares that data to a materials database in an Palm Pilot vlecored to the top of the device to give the operator a text identification of the substance with 5 seconds. The device is sensitive enough to distinguish coke from diet coke and and can distinguish subtances at a variety of temperatures ranging from below freezing to over 100degreesF. PNNL won an R&D 100 award for the technology in 2003.

Diaz, Aaron A.

2003-12-01T23:59:59.000Z

215

Cylindrical acoustic levitator/concentrator  

DOE Patents [OSTI]

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.

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

2002-01-01T23:59:59.000Z

216

Acoustic horizons in nuclear fluids  

E-Print Network [OSTI]

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.

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

2014-04-13T23:59:59.000Z

217

Acoustic characteristics of English fricatives  

E-Print Network [OSTI]

of noise spectrum, while there are some data suggesting that /f,v/ may be distin- guished from /Y,Z/ on the basis of transition information.a!Electronic mail: jongman@ukans.edu 1252 1252J. Acoust. Soc. Am. 108 (3), Pt. 1, Sep 2000 0001...! Variance ~MHz! Skewness Kurtosis /f,v/ 5108 6.37 0.077 2.11 /T,D/ 5137 6.19 20.083 1.27 /s,z/ 6133 2.92 20.229 2.36 /S,Z/ 4229 3.38 0.693 0.421257 J. Acoust. Soc. Am., Vol. 108, No. 3, Pt. 1, Sep 2000with h2 ranging from 0.001 for skewness to 0.004 for spec...

Jongman, Allard; Wayland, Ratree; Wong, Serena

2000-09-01T23:59:59.000Z

218

Vertical axis wind turbine acoustics  

E-Print Network [OSTI]

Vertical Axis Wind Turbine Acoustics Charlie Pearson Corpus Christi College Cambridge University Engineering Department A thesis submitted for the degree of Doctor of Philosophy September 2013 Declaration Described in this dissertation is work... quickly to changing wind conditions, small- scale vertical axis wind turbines (VAWTs) have been proposed as an efficient solution for deployment in built up areas, where the wind is more gusty in nature. If VAWTs are erected in built up areas...

Pearson, Charlie

2014-04-08T23:59:59.000Z

219

Proposed geologic model based on geophysical well logs  

SciTech Connect (OSTI)

An investigation of the subsurface based on a qualitative interpretation of well logs was carried out at Cerro Prieto to obtain information on the distribution of the different lithofacies that make up a deltaic depositional system. The sedimentological interpretation derived from the resistivity and spontaneous potential are shown in several cross-sections of the field. In addition to the sedimentological interpretation, a map of the structural geology of the region based on well logs and available geophysical information was prepared, including the results of gravity and seismic refraction surveys. The depth to the zone of hydrothermal alteration described by Elders (1980) was found by means of temperature, electrical, and radioactive logs. Two maps showing the configuration of the top of this anomaly show a clear correlation with the gravity anomalies found in the area.

Diaz C, S.; Puente C, I.; de la Pena L, A.

1981-01-01T23:59:59.000Z

220

Multi-rate flowing Wellbore electric conductivity logging method  

SciTech Connect (OSTI)

The flowing wellbore electric conductivity logging method involves the replacement of wellbore water by de-ionized or constant-salinity water, followed by constant pumping with rate Q, during which a series of fluid electric conductivity logs are taken. The logs can be analyzed to identify depth locations of inflow, and evaluate the transmissivity and electric conductivity (salinity) of the fluid at each inflow point. The present paper proposes the use of the method with two or more pumping rates. In particular it is recommended that the method be applied three times with pumping rates Q, Q /2, and 2Q. Then a combined analysis of the multi-rate data allows an efficient means of determining transmissivity and salinity values of all inflow points along a well with a confidence measure, as well as their inherent or far-field pressure heads. The method is illustrated by a practical example.

Tsang, Chin-Fu; Doughty, Christine

2003-04-22T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Frustrated total internal reflection acoustic field sensor  

DOE Patents [OSTI]

A frustrated total internal reflection acoustic field sensor which allows the acquisition of the acoustic field over an entire plane, all at once. The sensor finds use in acoustic holography and acoustic diffraction tomography. For example, the sensor may be produced by a transparent plate with transparent support members tall enough to support one or more flexible membranes at an appropriate height for frustrated total internal reflection to occur. An acoustic wave causes the membrane to deflect away from its quiescent position and thus changes the amount of light that tunnels through the gap formed by the support members and into the membrane, and so changes the amount of light reflected by the membrane. The sensor(s) is illuminated by a uniform tight field, and the reflection from the sensor yields acoustic wave amplitude and phase information which can be picked up electronically or otherwise.

Kallman, Jeffrey S. (Pleasanton, CA)

2000-01-01T23:59:59.000Z

222

System Problem Detection by Mining Console Logs Electrical Engineering and Computer Sciences  

E-Print Network [OSTI]

for mining console logs using a combination of program analysis, information retrieval, data mining logs. We then extract features, such as execution traces, from logs and use data mining and machineSystem Problem Detection by Mining Console Logs Wei Xu Electrical Engineering and Computer Sciences

Xu, Wei

223

Acoustic resonance frequency locked photoacoustic spectrometer  

DOE Patents [OSTI]

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.

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

2003-09-09T23:59:59.000Z

224

Acoustic resonance phase locked photoacoustic spectrometer  

DOE Patents [OSTI]

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.

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

2003-08-19T23:59:59.000Z

225

Corrosion reference for geothermal downhole materials selection  

SciTech Connect (OSTI)

Geothermal downhole conditions that may affect the performance and reliability of selected materials and components used in the drilling, completion, logging, and production of geothermal wells are reviewed. The results of specific research and development efforts aimed at improvement of materials and components for downhole contact with the hostile physicochemical conditions of the geothermal reservoir are discussed. Materials and components covered are tubular goods, stainless steels and non-ferrous metals for high-temperature downhole service, cements for high-temperature geothermal wells, high-temperature elastomers, drilling and completion tools, logging tools, and downhole pumps. (MHR)

Ellis, P.F. II, Smith, C.C.; Keeney, R.C.; Kirk, D.K.; Conover, M.F.

1983-03-01T23:59:59.000Z

226

Spring 2014 ME 720 Acoustics II ENG ME 720 Acoustics II  

E-Print Network [OSTI]

in a first course in acoustics or fluid mechanics. Outline syllabus: Equations of motion; acoustics as a branch of fluid mechanics. Sound waves and sources of sound in one, two and three dimensions. Scattering-ended ducts; end-correction. Prerequisites: Some familiarity with fluid mechanics, acoustics or continuum

Lin, Xi

227

Acoustic resonance for nonmetallic mine detection  

SciTech Connect (OSTI)

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.

Kercel, S.W.

1998-04-01T23:59:59.000Z

228

Wind Turbine Acoustic Noise A white paper  

E-Print Network [OSTI]

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

Massachusetts at Amherst, University of

229

The Impact of Civil Rights Legislation on Classroom Acoustics  

E-Print Network [OSTI]

................................................................................................... 2 Petition to the Access Board........................................................................................... 3 Case Study ? Classroom Acoustics in the Courtroom.................................................... 4 Others Impacted... by Classroom Acoustics ...................................................................... 6 Chapter Two: Addressing Poor Classroom Acoustics with ANSI S12.60-2002................ 8 Reverberation Control...

Teel, Jeffrey

2005-12-16T23:59:59.000Z

230

Performance Assessment of Suture Type in Juvenile Chinook Salmon Surgically Implanted with Acoustic Transmitters  

SciTech Connect (OSTI)

The objective of this study was to determine the best overall suture material to close incisions from the surgical implantation of Juvenile Salmon Acoustic Telemetry System (JSATS) acoustic microtransmitters in subyearling Chinook salmon Oncorhynchus tshawytscha. The effects of seven suture materials, four surgeons, and two water temperatures on suture retention, incision openness, tag retention, tissue inflammation, and tissue ulceration were quantified. The laboratory study, conducted by researchers at the Pacific Northwest National Laboratory, supports a larger effort under way for the U.S. Army Corps of Engineers, Portland District, aimed at determining the suitability of acoustic telemetry for estimating short- and longer-term (30-60 days) juvenile-salmonid survival at Columbia and Snake River dams and through the lower Columbia River.

Deters, Katherine A.; Brown, Richard S.; Carter, Kathleen M.; Boyd, James W.

2009-02-27T23:59:59.000Z

231

DARK ENERGY FROM THE LOG-TRANSFORMED CONVERGENCE FIELD  

SciTech Connect (OSTI)

A logarithmic transform of the convergence field improves 'the information content', i.e., the overall precision associated with the measurement of the amplitude of the convergence power spectrum, by improving the covariance matrix properties. The translation of this improvement in the information content to that in cosmological parameters, such as those associated with dark energy, requires knowing the sensitivity of the log-transformed field to those cosmological parameters. In this paper, we use N-body simulations with ray tracing to generate convergence fields at multiple source redshifts as a function of cosmology. The gain in information associated with the log-transformed field does lead to tighter constraints on dark energy parameters, but only if shape noise is neglected. The presence of shape noise quickly diminishes the advantage of the log-mapping, more quickly than we would expect based on the information content. With or without shape noise, using a larger pixel size allows for a more efficient log-transformation.

Seo, Hee-Jong [Berkeley Center for Cosmological Physics, LBL and Department of Physics, University of California, Berkeley, CA 94720 (United States); Sato, Masanori [Department of Physics, Nagoya University, Nagoya 464-8602 (Japan); Takada, Masahiro [Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, Chiba 277-8582 (Japan); Dodelson, Scott, E-mail: hee-jongseo@lbl.gov [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, IL 60510 (United States)

2012-03-20T23:59:59.000Z

232

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this report is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity. Oil based drilling fluids can have an adverse effect on NMR well logging if it alters the wettability of the formation. The effect of various surfactants on wettability and surface relaxivity are evaluated for silica sand. The relation between the relaxation time and diffusivity distinguishes the response of brine, oil, and gas in a NMR well log. A new NMR pulse sequence in the presence of a field gradient and a new inversion technique enables the T{sub 2} and diffusivity distributions to be displayed as a two-dimensional map. The objectives of pore morphology and rock characterization are to identify vug connectivity by using X-ray CT scan, and to improve NMR permeability correlation. Improved estimation of permeability from NMR response is possible by using estimated tortuosity as a parameter to interpolate between two existing permeability models.

George J. Hirasaki; Kishore K. Mohanty

2005-09-05T23:59:59.000Z

233

Logging threatens Indonesia's biodiversity By Dianthus Saputra Estey in Jakarta  

E-Print Network [OSTI]

Logging threatens Indonesia's biodiversity By Dianthus Saputra Estey in Jakarta Monday 13 October 2003, 16:57 Makka Time, 13:57 GMT A tenth of the world's tropical rainforests lie in Indonesia year," Togu Manurung from Forest Watch Indonesia said. This ranks the depletion of Indonesia

234

Subsistence Halibut Community Harvest Log Page 1 of 4  

E-Print Network [OSTI]

-0512, Expiration date: 07/31/2014 Subsistence Halibut Community Harvest Permit (CHP) Log U.S. Dept of Commerce-1668 Telephone: 1-800-304-4846 FAX: 907-586-7354 BLOCK A ­ CHP COORDINATOR 1. Name of CHP Coordinator 2. Signature of CHP Coordinator BLOCK B -- SUBSISTENCE FISHER IDENTIFICATION 1. Name of Fisher (First, Middle

235

Condition and fate of logged forests in the Brazilian Amazon  

E-Print Network [OSTI]

Ecology, Carnegie Institution of Washington, Stanford, CA 94305; U.S. Department of Agriculture Forest resulted in high levels of canopy damage suffi- cient to leave forests susceptible to drought and fire. We the management regimes in effect at the time of our study in the Brazilian Amazon, selective logging would

Camara, Gilberto

236

SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale  

E-Print Network [OSTI]

SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of hydrocarbons from the reservoirs, notably shale, is attributed to realizing the key fundamentals of reservoir and mineralogy is crucial in order to identify the "right" pay-zone intervals for shale gas production. Also

Mohaghegh, Shahab

237

Estimating the Service Time of Web Clients using Server Logs  

E-Print Network [OSTI]

Estimating the Service Time of Web Clients using Server Logs Oscar Ardaiz Dep. Arquitectura de Freitag Dep. Arquitectura de Computadores Universidad Politécnica de Catalunya Jordi Girona, 1­3, Barcelona (España) felix@ac.upc.es Leandro Navarro Dep. Arquitectura de Computadores Universidad Politécnica

Freitag, Felix

238

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...

239

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...

240

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...

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


241

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...

242

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...

243

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...

244

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...

245

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...

246

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...

247

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...

248

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...

249

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...

250

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...

251

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...

252

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...

253

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...

254

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...

255

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...

256

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...

257

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...

258

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...

259

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...

260

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...

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

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...

262

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...

263

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...

264

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...

265

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...

266

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...

267

Cooperative Multihop Communication for Underwater Acoustic Networks  

E-Print Network [OSTI]

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

Zhou, Shengli

268

Acoustical Communications for Wireless Downhole Telemetry Systems  

E-Print Network [OSTI]

on this testbed in order to characterize the channel behavior are explained as well. Moreover, the large scale statistics of the acoustic waves along the pipe string are described. Results of this work indicate that acoustic waves experience a frequency- dependent...

Farraj, Abdallah

2012-08-22T23:59:59.000Z

269

R. White, Comsol Acoustics Introduction, 2012  

E-Print Network [OSTI]

R. White, Comsol Acoustics Introduction, © 2012 Tutorial Created in Comsol 4.3 (2012) #12;R. White Variables ­ space and time (x,y,z,t) Dependent Variables ­ unknown field (such as u) #12;R. White, Comsol (such as u) #12;R. White, Comsol Acoustics Introduction, © 2012 Finite Element Analysis (FEA / FEM) ­ 1

White, Robert D.

270

Characterization of acoustically forced swirl flame dynamics  

E-Print Network [OSTI]

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

Lieuwen, Timothy C.

271

Reuse of textile powder remainders for acoustic applications using the Wet-Laid technology  

E-Print Network [OSTI]

are like a powder with difficult recycling, but it can be recycled by means of Wet-Laid Technology study about the acoustic behaviour of nonwoven materials combined with recycled polyester. The recycled polyester used in these combinations has been manufactured from remains of plastic bottles (PET

Paris-Sud XI, Université de

272

Acoustic-phonon propagation in rectangular semiconductor nanowires with elastically dissimilar barriers  

E-Print Network [OSTI]

Engineering, University of California--Riverside, Riverside, California 92521, USA Received 15 February 2005 dissimilar materials. As example systems, we have considered GaN nanowires with AlN and plastic barrier­5 The modification of the acoustic phonon dispersion in semiconductor superlattices has been mostly studied, both

273

Method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein  

DOE Patents [OSTI]

A method is described for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries. 3 figs.

Sinha, D.N.; Anthony, B.W.

1997-02-25T23:59:59.000Z

274

Method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein  

DOE Patents [OSTI]

A method for determining the octane rating of gasoline samples by observing corresponding acoustic resonances therein. A direct correlation between the octane rating of gasoline and the frequency of corresponding acoustic resonances therein has been experimentally observed. Therefore, the octane rating of a gasoline sample can be directly determined through speed of sound measurements instead of by the cumbersome process of quantifying the knocking quality of the gasoline. Various receptacle geometries and construction materials may be employed. Moreover, it is anticipated that the measurements can be performed on flowing samples in pipes, thereby rendering the present method useful in refineries and distilleries.

Sinha, Dipen N. (Los Alamos, NM); Anthony, Brian W. (Clearfield, PA)

1997-01-01T23:59:59.000Z

275

Slimhole Drilling, Logging, and Completion Technology - An Update  

SciTech Connect (OSTI)

Using slim holes (diameter < 15 cm) for geothermal exploration and small-scale power production can produce significant cost savings compared to conventional rotary-drilling methods. In addition, data obtained from slim holes can be used to lower the risks and costs associated with the drilling and completion of large-diameter geothermal wells. As a prime contractor to the U.S. Department of Energy (DOE), Sandia National Laboratories has worked with industry since 1992 to develop and promote drilling, testing, and logging technology for slim holes. This paper describes the current status of work done both in-house and contracted to industry. It focuses on drilling technology, case histories of slimhole drilling projects, data collection and rig instrumentation, and high-temperature logging tools.

FINGER,JOHN T.; JACOBSON,RONALD D.

1999-10-07T23:59:59.000Z

276

Porosity, permeability, and petroleum: Determining the three P's by integrating mud logs with wireline logs and drill-stem tests in central and western Kansas  

SciTech Connect (OSTI)

Mud logging has long been a part of the complete formation evaluation picture in most oil and gas producing provinces of the US. In Kansas, however, mud logging has often been omitted from this picture. Typically, a well in central and western Kansas is drill-stem tested and then logged. Although this technique is often successful, there are also times when drill-stem tests and logs conflict with one another. Mud-logging techniques, especially hydrocarbon ratio analysis, could provide this necessary third aspect of formation evaluation to be integrated with drill-stem tests and wireline logs. Generally, the most important characteristics of a reservoir are porosity, permeability, and petroleum saturation. All three styles of formation evaluation (mud logs, wireline logs, and drill-stem tests) can determine most of these characteristics either qualitatively or quantitatively. The mud log, through hydrocarbon ratio analysis in conjunction with the drilling time log, can contribute at least ballpark estimates on porosity, permeability, and type of reservoir fluid. Wireline logs and drill-stem tests provide the more direct or quantitative measure of these formation characteristics. The central/western Kansas wells chosen for this study show that no single formation evaluation method is more important than the others. Each method must be weighed or calibrated to each specific study area as to its particular track record in that area. The difficulty in answering the question, Should I set pipe therefore can be minimized by integrating the mud log, the wireline log, and drill-stem test information.

Deboer, D.A. (Oil Production Systems, Inc., Cushing, OK (USA))

1989-08-01T23:59:59.000Z

277

An expert system advisor for well log quality control  

E-Print Network [OSTI]

funda- mental tool in the evaluation of petroleum reservoirs. Wireline well logging involves undergrourR measurement of various rock and fluid properties. These meas~ts are usually recorded with a downhole sonde and ~tted to the surface through a... expert systems, has proven to be an effective com- puterized problem solving tool in many oilfield applications. Expert systems strive to mimic an ~'s reasoning process when performing a highly specialized task. Expert system problem solvirg combines...

Warnken, Dean Kennedy

1988-01-01T23:59:59.000Z

278

15 Acoustic Daylight Imaging in the Michael J. Buckingham  

E-Print Network [OSTI]

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

Buckingham, Michael

279

R. White, Comsol Acoustics Introduction, 2/25/08  

E-Print Network [OSTI]

R. White, Comsol Acoustics Introduction, 2/25/08 #12;R. White, Comsol Acoustics Introduction, 2,y,z,t) Dependent Variables ­ unknown field (such as u) #12;R. White, Comsol Acoustics Introduction, 2/25/08 Finite ­ space and time (x,y,z,t) Dependent Variables ­ unknown field (such as u) #12;R. White, Comsol Acoustics

White, Robert D.

280

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

E-Print Network [OSTI]

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

Merlino, Robert L.

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Well logging and testing. Stiff competition incites innovation  

SciTech Connect (OSTI)

Logging and testing continue to be critical functions in well development. Terra Tek Systems of Salt Lake City has introduced a down-hole pressure and temperature measuring tool with a microprocessor-controlled surface data acquisition system and an independent mass storage reader. The system features a high-resolution quartz pressure transducer which transforms down-hole pressure into a frequency transmitted from the down-hole pressure probe to the surface via a single conductor cable. Preprogramed electronic modules automatically compensate pressure data for temperature variations. Data acquisition rates can be varied from 4 points/sec to one point/day, and surface electronics can monitor and control up to 4 pressure probes at once. Petroleum Information Corp. introduced Log Plus, a product that ties together information from well logs and completion cards in the Rockies. Completion data are available from current and historic files on more than 170,000 wells in the Rockies. Data include location and identification information, drill stem test results, initial potentials, and a variety of items relating to tops, casing, liners, and drilling and completion dates.

Savage, D.

1983-09-01T23:59:59.000Z

282

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

E-Print Network [OSTI]

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

Wadsworth, Adam J.

2010-01-01T23:59:59.000Z

283

Thermal Acoustic Sensor for High Pulse Energy X-ray FEL Beams  

SciTech Connect (OSTI)

The pulse energy density of X-ray FELs will saturate or destroy conventional X-ray diagnostics, and the use of large beam attenuation will result in a beam that is dominated by harmonics. We present preliminary results at the LCLS from a pulse energy detector based on the thermal acoustic effect. In this type of detector an X-ray resistant material (boron carbide in this system) intercepts the beam. The pulse heating of the target material produces an acoustic pulse that can be detected with high frequency microphones to produce a signal that is linear in the absorbed energy. The thermal acoustic detector is designed to provide first- and second-order calorimetric measurement of X-ray FEL pulse energy. The first-order calorimetry is a direct temperature measurement of a target designed to absorb all or most of the FEL pulse power with minimal heat leak. The second-order measurement detects the vibration caused by the rapid thermoelastic expansion of the target material each time it absorbs a photon pulse. Both the temperature change and the amplitude of the acoustic signal are directly related to the photon pulse energy.

Smith, T.J.; Frisch, J.C.; Kraft, E.M.; Loos, J.; /SLAC; Bentsen, G.S.; /Rochester U.

2011-12-13T23:59:59.000Z

284

Writing magnetic patterns with surface acoustic waves  

SciTech Connect (OSTI)

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.

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

285

Vote Selling, Voter Anonymity, and Forensic Logging of Electronic Voting Machines  

E-Print Network [OSTI]

iVotronic 8.0.1.2 Voting Machine Firmware: Final Report ForLogging of Electronic Voting Machines Sean Peisert and Mattment of electronic voting machinesforensic log- ging and

Peisert, Sean; Bishop, Matt; Yasinsac, Alec

2009-01-01T23:59:59.000Z

286

Boise State University Automobile Use Mileage Log (Documentation for Business Miles)  

E-Print Network [OSTI]

Boise State University Automobile Use Mileage Log (Documentation for Business Miles) Rev. 03 University Automobile Use Mileage Log (Documentation for Business Miles) Rev. 03/10 PAGE ____ (IF YOU NEED

Barrash, Warren

287

MATHEMATICS AND SCIENCE CENTERS STUDENT SERVICES ACTIVITY LOG/EVENT RECORD  

E-Print Network [OSTI]

MATHEMATICS AND SCIENCE CENTERS STUDENT SERVICES ACTIVITY LOG/EVENT RECORD Use this log for all. ENROLLEES BY TYPE: (Check one) ______ GENDER: ETHNICITY: ___ Mathematics ____ Female ___ African ___ No ___ Mathematics ___ Science ___ Technology ___ Other Describe: ____________________ 12. DESCRIPTION: (Purpose

288

Nuclear Magnetic Resonance (NMR) is the only logging technique available to estimate pore-size  

E-Print Network [OSTI]

1 ABSTRACT Nuclear Magnetic Resonance (NMR) is the only logging technique available to estimate, Nuclear Magnetic Resonance (NMR) logging has been used to assess a handful of key petrophysical parameters

Torres-Verdín, Carlos

289

What is a blog? The word "blog," a contraction of "web log," is an informational web  

E-Print Network [OSTI]

What is a blog? The word "blog," a contraction of "web log," is an informational web page's log, blogs on the web tend to maintain an ordered chronology, although they often unfold in reverse

Zhou, Pei

290

ForPeerReview Interpretation of hydraulic rock types with resistivity logs in  

E-Print Network [OSTI]

Subject Areas: Borehole and log interpretation, Integrated workflows and best practices (with broad hydraulic rock types. Core data and well logs acquired from a deep-drilling exploration well penetrating

Torres-Verdín, Carlos

291

22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 1 Kinetic theory of Geodesic Acoustic  

E-Print Network [OSTI]

22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 1 Kinetic theory of Geodesic Acoustic Zonca, Liu Chen and Zhiyong Qiu #12;22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 2 Chen and Zhiyong Qiu #12;22nd IAEA-FEC Kinetic theory of Geodesic Acoustic Modes: ... 3 2 Linear

Zonca, Fulvio

292

Laser Measurement of SAM Bulk and Surface Wave Amplitudes for Material Microstructure Analysis  

SciTech Connect (OSTI)

Scanning Acoustic Microscopy (SAM) at ultra high frequencies has proven to be a useful tool for investigating materials on the scale of individual grains. This technique is normally performed in a reflection mode from one side of a sample surface. Information about the generation and transmission of bulk acoustic waves into the material is inferred from the reflection signal amplitude. We present an adaptation to the SAM method whereby the acoustic bulk waves are directly visualized through laser acoustic detection. Ultrasonic waves were emitted from a nominal 200 MHz point focus acoustic lens into a thin silicon plate (thickness 75m) coupled with distilled water. A scanned laser beam detected the bulk and surface acoustic waves at the opposite surface of the thin silicon plate. Distinct amplitude patterns exhibiting the expected symmetry for Silicon were observed that alter in predictable ways as the acoustic focal point was moved throughout the plate. Predictions of the acoustic wave fields generated by the acoustic lens within and at the surface of the Silicon are being investigated through the angular spectrum of plane waves approach. Results shall be presented for plates with (100) and (111) orientations followed by discussion of applications of the technique for material microstructure analysis.

Ken L. Telschow; Chiaki Miyasaka; David L. Cottle

2005-07-01T23:59:59.000Z

293

Acoustic wave device using plate modes with surface-parallel displacement  

DOE Patents [OSTI]

Solid-state acoustic sensors for monitoring conditions at a surface immersed in a liquid and for monitoring concentrations of species in a liquid and for monitoring electrical properties of a liquid are formed by placing interdigital input and output transducers on a piezoelectric substrate and propagating acoustic plate modes therebetween. The deposition or removal of material on or from, respectively, a thin film in contact with the surface, or changes in the mechanical properties of a thin film in contact with the surface, or changes in the electrical characteristics of the solution, create perturbations in the velocity and attenuation of the acoustic plate modes as a function of these properties or changes in them. 6 figs.

Martin, S.J.; Ricco, A.J.

1988-04-29T23:59:59.000Z

294

Focused acoustic beam imaging of grain structure and local Young's modulus with Rayleigh and surface skimming longitudinal waves  

SciTech Connect (OSTI)

The interaction of a focused acoustic beam with materials generates Rayleigh surface waves (RSW) and surface skimming longitudinal waves (SSLW). Acoustic microscopic investigations have used the RSW amplitude and the velocity measurements, extensively for grain structure analysis. Although, the presence of SSLW has been recognized, it is rarely used in acoustic imaging. This paper presents an approach to perform microstructure imaging and local elastic modulus measurements by combining both RSW and SSLW. The acoustic imaging of grain structure was performed by measuring the amplitude of RSW and SSLW signal. The microstructure images obtained on the same region of the samples with RSW and SSLW are compared and the difference in the contrast observed is discussed based on the propagation characteristics of the individual surface waves. The velocity measurements are determined by two point defocus method. The surface wave velocities of RSW and SSLW of the same regions of the sample are combined and presented as average Young's modulus image.

Martin, R. W.; Sathish, S. [University of Dayton Research Institute, Structural Integrity Division 300 College Park Drive, Dayton, OH, 45469 (United States); Blodgett, M. P. [Air Force Research Lab, RXCA, Wright Patterson AFB, OH, 45433 (United States)

2013-01-25T23:59:59.000Z

295

Object-Based Image Analysis of Downed Logs in Disturbed Forested Landscapes Using Lidar  

E-Print Network [OSTI]

quantity and location of downed logs in forests is important for assessing fire risk [4,5], measuring dead biomass

Kelly, Maggi

2011-01-01T23:59:59.000Z

296

Study on acoustics for SSC measurements Using the acoustic Doppler current profiler (ADCP) to  

E-Print Network [OSTI]

................................................................................................................................. 1 2. Background of higher- frequency, acoustic backscatterance sensors (ABS, for a review see Thorne and Hanes, 2002), and optical backscatterance sensors (OBS), whose sample ranges ar

Voulgaris, George

297

An acoustic energy framework for predicting combustion- driven acoustic instabilities in premixed gas-turbines  

E-Print Network [OSTI]

Instabilities in A Model Gas Turbine Combustor," Journal ofModel of Acoustic Response of Turbulent Premixed Flame and Its Application to Gas-Turbine

Ibrahim, Zuhair M. A.

2007-01-01T23:59:59.000Z

298

Small Log Conference Creating Capacity to Compete Coeur d'Alene, Idaho, USA, 1 April 2005  

E-Print Network [OSTI]

. Growing the market #12;Small Log Conference ­ Creating Capacity to Compete Coeur d'Alene, Idaho, USA, 1 Capacity to Compete Coeur d'Alene, Idaho, USA, 1 April 2005 F A O I. Forest products markets #12;Small LogSmall Log Conference ­ Creating Capacity to Compete Coeur d'Alene, Idaho, USA, 1 April 2005 F A O

299

Illegal logging and destruction continues in the Greenpeace demands all companies stop buying wood  

E-Print Network [OSTI]

Illegal logging and destruction continues in the Amazon Greenpeace demands all companies stop. Pombo, one of the largest log traders in the Porto de Moz area, supplies companies such as Eidai do of Brazil's Para State. Activists painted "Crime" on 6,000 cubic metres of logs and on a barge used

300

Annual Logging Symposium, June 3-6, 2007 RAPID SIMULATION OF BOREHOLE NUCLEAR MEASUREMENTS  

E-Print Network [OSTI]

recent advances in computer technology have considerably reduced the computer time required by Monte of particle flux. Simulations performed with the new approximations entail percent errors of less than 10 with other well logs. The particular case of logging while drilling (LWD) logs in high-angle wells

Torres-Verdín, Carlos

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Annual Logging Symposium, June 19-23, 2010 QUANTITATIVE INTERPRETATION OF PULSED NEUTRON  

E-Print Network [OSTI]

measurements. The extension of time-lapse logging in waterflooded reservoirs is the estimation of waterflood for shoulder-bed effects on PNC logs acquired in sand- shale laminated reservoirs. Due to diffusion effects-hole saturation monitoring. PNC logs can be used to discriminate hydrocarbon- from water-bearing reservoir units

Torres-Verdín, Carlos

302

E-Print Network 3.0 - acoustic energy-driven fluid Sample Search...  

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

search results for: acoustic energy-driven fluid Page: << < 1 2 3 4 5 > >> 1 Acoustic Identification of Unknown Fluids Summary: Acoustic Identification of Unknown Fluids...

303

Institute of Fluid Mechanics and Engineering Acoustics  

E-Print Network [OSTI]

Institute of Fluid Mechanics and Engineering Acoustics Large Kundt's tubes Click to insert the image of the facility or test-rig Application area Facility Mechanical Property measurement Physical

Berlin,Technische Universität

304

Institute of Fluid Mechanics and Engineering Acoustics  

E-Print Network [OSTI]

Institute of Fluid Mechanics and Engineering Acoustics Sound Transmission Lab Click to insert the image of the facility or test-rig Application area Facility Mechanical Property measurement Physical

Berlin,Technische Universität

305

Surface acoustic wave dust deposition monitor  

DOE Patents [OSTI]

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.

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

1988-02-12T23:59:59.000Z

306

Simulations of pressure fluctuations and acoustic emission in hydraulic fracturing  

SciTech Connect (OSTI)

We consider a two-dimensional lattice model to describe the opening of a crack in hydraulic fracturing. In particular, we consider that the material only breaks under tension and the fluid has no pressure drop inside the crack. For the case in which the material is completely homogeneous (no disorder), we present results for pressure and elastic energy as a function of time and compare our findings with some analytic results from continuum fracture mechanics. Then we investigate fracture processes in strongly heterogeneous cohesive environments. We determine the cumulative probability distribution for breaking events of a given energetical magnitude (acoustic emission). Further, we estimate the probability distribution of emission free time intervals. Finally, we determine the fractal dimension(s) of the cracks.

Tzschichholz, F.; Herrmann, H.J. [Division of Physics and Mechanics, School of Technology, Aristotele University of Thessaloniki, 54006 Thessaloniki (Greece)] [Division of Physics and Mechanics, School of Technology, Aristotele University of Thessaloniki, 54006 Thessaloniki (Greece); [HLRZ, Kernforschungsanlage Juelich, Postfach 1913, 5170 Juelich (Germany); [P.M.M.H. (CNRS, URA 857), Ecole Superieuree de Physique et de Chimie Industrielle de la Ville de Paris, 10 rue Vauquelin, 75231 Paris Cedex 05 (France)

1995-03-01T23:59:59.000Z

307

System for generating a beam of acoustic energy from a borehole, and applications thereof  

DOE Patents [OSTI]

In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion.

Vu, Cung Khac; Sinha, Dipen N.; Pantea, Cristian; Nihei, Kurt T.; Schmitt, Denis P.; Skelt, Christopher

2012-09-04T23:59:59.000Z

308

Device and method for generating a beam of acoustic energy from a borehole, and applications thereof  

DOE Patents [OSTI]

In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion.

Vu, Cung Khac (Houston, TX); Sinha, Dipen N. (Los Alamos, NM); Pantea, Cristian (Los Alamos, NM); Nihei, Kurt (Oakland, CA); Schmitt, Denis P. (Katy, TX); Skelt, Christopher (Houston, TX)

2010-11-23T23:59:59.000Z

309

System for generating a beam of acoustic energy from a borehole, and applications thereof  

DOE Patents [OSTI]

In some aspects of the invention, a device, positioned within a well bore, configured to generate and direct an acoustic beam into a rock formation around a borehole is disclosed. The device comprises a source configured to generate a first signal at a first frequency and a second signal at a second frequency; a transducer configured to receive the generated first and the second signals and produce acoustic waves at the first frequency and the second frequency; and a non-linear material, coupled to the transducer, configured to generate a collimated beam with a frequency equal to the difference between the first frequency and the second frequency by a non-linear mixing process, wherein the non-linear material includes one or more of a mixture of liquids, a solid, a granular material, embedded microspheres, or an emulsion.

Vu, Cung Khac (Houston, TX); Sinha, Dipen N. (Los Alamos, NM); Pantea, Cristian (Los Alamos, NM); Nihei, Kurt T. (Oakland, CA); Schmitt, Denis P. (Katy, TX); Skelt, Christopher (Houston, TX)

2012-07-31T23:59:59.000Z

310

Tunable damper for an acoustic wave guide  

DOE Patents [OSTI]

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.

Rogers, S.C.

1982-10-21T23:59:59.000Z

311

Tsallis Distribution Decorated With Log-Periodic Oscillation  

E-Print Network [OSTI]

In many situations, in all branches of physics, one encounters power-like behavior of some variables which are best described by a Tsallis distribution characterized by a nonextensivity parameter $q$ and scale parameter $T$. However, there exist experimental results which can be described only by a Tsallis distributions which are additionally decorated by some log-periodic oscillating factor. We argue that such a factor can originate from allowing for a complex nonextensivity parameter $q$. The possible information conveyed by such an approach (like the occurrence of complex heat capacity, the notion of complex probability or complex multiplicative noise) will also be discussed.

Wilk, Grzegorz

2015-01-01T23:59:59.000Z

312

Tsallis Distribution Decorated With Log-Periodic Oscillation  

E-Print Network [OSTI]

In many situations, in all branches of physics, one encounters power-like behavior of some variables which are best described by a Tsallis distribution characterized by a nonextensivity parameter $q$ and scale parameter $T$. However, there exist experimental results which can be described only by a Tsallis distributions which are additionally decorated by some log-periodic oscillating factor. We argue that such a factor can originate from allowing for a complex nonextensivity parameter $q$. The possible information conveyed by such an approach (like the occurrence of complex heat capacity, the notion of complex probability or complex multiplicative noise) will also be discussed.

Grzegorz Wilk; Zbigniew Wlodarczyk

2015-01-12T23:59:59.000Z

313

Well-log interpretation of carbonate reservoirs with bimodal porosity  

E-Print Network [OSTI]

% is calculated in the bimodal zones of Amoco Cutshaw 1, which produce water-free gas at the Running Duke field, Houston County, Texas. Values of bulk volume water are greater than 0. 07 as calculated by the Archie water saturation in the bimodal zones... saturation values for bimodal pore system calculated using different methods. . . 55 7 Log analysis of Amoco Cutshaw I, Running Duke field, Houston County, Texas. 68 8 Data used in construction of the plots, Running Duke field, Houston County, Texas...

Tandircioglu, Ahmet

1990-01-01T23:59:59.000Z

314

Property:FirstWellLog | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration Jump to:FieldProcedures Jump to: navigation,JumpFirstWellDepthFirstWellLog

315

Gamma Log At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6TheoreticalFuelCell Energy IncFORTechnologyGamma Log At

316

Image Logs At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyNameInformationsource History ViewImage Logs

317

Borehole Calibration Facilities to Support Gamma Logging for Hanford Subsurface Investigation and Contaminant Monitoring - 13516  

SciTech Connect (OSTI)

Repeated gamma logging in cased holes represents a cost-effective means to monitor gamma-emitting contamination in the deep vadose zone over time. Careful calibration and standardization of gamma log results are required to track changes and to compare results over time from different detectors and logging systems. This paper provides a summary description of Hanford facilities currently available for calibration of logging equipment. Ideally, all logging organizations conducting borehole gamma measurements at the Hanford Site will take advantage of these facilities to produce standardized and comparable results. (authors)

McCain, R.G.; Henwood, P.D.; Pope, A.D.; Pearson, A.W. [S M Stoller Corporation, 2439 Robertson Drive, Richland, WA 99354 (United States)] [S M Stoller Corporation, 2439 Robertson Drive, Richland, WA 99354 (United States)

2013-07-01T23:59:59.000Z

318

Apparatus for separating particles utilizing engineered acoustic contrast capture particles  

DOE Patents [OSTI]

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.

Kaduchak, Gregory; Ward, Michael D

2014-10-21T23:59:59.000Z

319

Apparatus for separating particles utilizing engineered acoustic contrast capture particles  

DOE Patents [OSTI]

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.

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

2011-12-27T23:59:59.000Z

320

Coal log pipeline research at the University of Missouri. Second quarterly report, April 1, 1994--June 30, 1994  

SciTech Connect (OSTI)

Coal log pipeline research continued. Progress is discussed in the following areas: fabrication, compaction, pipe abrasion, and machine design for the manufacture of the logs.

Liu, H.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Logging InLogging In Go to Johnson School LibraryGo to Johnson School Library''s Website,s Website,  

E-Print Network [OSTI]

#12;Logging InLogging In Go to Johnson School LibraryGo to Johnson School Library''s Website such as Company Name, ConHere you can enter more specifications such as Company Name, Contacttact Name etc;ExampleExample Link to company provides more detailed information of the companLink to company provides

Lipson, Michal

322

Nuclear Tools For Oilfield Logging-While-Drilling Applications  

SciTech Connect (OSTI)

Schlumberger is an international oilfield service company with nearly 80,000 employees of 140 nationalities, operating globally in 80 countries. As a market leader in oilfield services, Schlumberger has developed a suite of technologies to assess the downhole environment, including, among others, electromagnetic, seismic, chemical, and nuclear measurements. In the past 10 years there has been a radical shift in the oilfield service industry from traditional wireline measurements to logging-while-drilling (LWD) analysis. For LWD measurements, the analysis is performed and the instruments are operated while the borehole is being drilled. The high temperature, high shock, and extreme vibration environment of LWD imposes stringent requirements for the devices used in these applications. This has a significant impact on the design of the components and subcomponents of a downhole tool. Another significant change in the past few years for nuclear-based oilwell logging tools is the desire to replace the sealed radioisotope sources with active, electronic ones. These active radiation sources provide great benefits compared to the isotopic sources, ranging from handling and safety to nonproliferation and well contamination issues. The challenge is to develop electronic generators that have a high degree of reliability for the entire lifetime of a downhole tool. LWD tool testing and operations are highlighted with particular emphasis on electronic radiation sources and nuclear detectors for the downhole environment.

Reijonen, Jani [Schlumberger PTC, 20 Wallace Rd., Princeton Junction, NJ 08550 (United States)

2011-06-01T23:59:59.000Z

323

E-Print Network 3.0 - acoustic emission characteristics Sample...  

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

Department of Mechanical Engineering PENNPENNSSTATETATE Acoustic Analysis of Gas Turbine Combustion... InstabilityAcoustic Analysis of Gas Turbine Combustion Instability ...

324

E-Print Network 3.0 - acoustically coupled oscillations Sample...  

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

Department of Mechanical Engineering PENNPENNSSTATETATE Acoustic Analysis of Gas Turbine Combustion... InstabilityAcoustic Analysis of Gas Turbine Combustion Instability ...

325

E-Print Network 3.0 - acoustic cardiographic assessment Sample...  

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

Department of Mechanical Engineering PENNPENNSSTATETATE Acoustic Analysis of Gas Turbine Combustion... InstabilityAcoustic Analysis of Gas Turbine Combustion Instability ...

326

E-Print Network 3.0 - acoustically enhanced remediation Sample...  

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

PENNPENNSSTATETATE Summary: Department of Mechanical Engineering PENNPENNSSTATETATE Acoustic Analysis of Gas Turbine Combustion... InstabilityAcoustic Analysis of Gas Turbine...

327

E-Print Network 3.0 - acoustic properties Sample Search Results  

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

Department of Mechanical Engineering PENNPENNSSTATETATE Acoustic Analysis of Gas Turbine Combustion... InstabilityAcoustic Analysis of Gas Turbine Combustion Instability ...

328

E-Print Network 3.0 - acoustic wave chemical Sample Search Results  

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

Lyle N.- Department of Aerospace Engineering, Pennsylvania State University Collection: Engineering 8 Acoustic Identification of Unknown Fluids Summary: Acoustic Identification...

329

Nondestructive evaluation of advanced ceramic composite materials  

SciTech Connect (OSTI)

Nondestructive evaluation techniques were developed to characterize performance degrading conditions in continuous fiber-reinforced silicon carbide/silicon carbide composites. Porosity, fiber-matrix interface bond strength, and physical damage were among the conditions studied. The material studied is formed by chemical vapor infiltration (CVI) of the matrix material into a preform of woven reinforcing fibers. Acoustic, ultrasonic, and vibration response techniques were studied. Porosity was investigated because of its inherent presence in the CVI process and of the resultant degradation of material strength. Correlations between porosity and ultrasonic attenuation and velocity were clearly demonstrated. The ability of ultrasonic transmission scanning techniques to map variations in porosity in a single sample was also demonstrated. The fiber-matrix interface bond was studied because of its importance in determining the fracture toughness of the material. Correlations between interface bonding and acoustic and ultrasonic properties were observed. These results are presented along with those obtained form acoustic and vibration response measurements on material samples subjected to mechanical impact damage. This is the final report on research sponsored by the US Department of Energy, Fossil Energy Advanced Research and Technology Development Materials Program. 10 refs., 24 figs., 2 tabs.

Lott, L.A.; Kunerth, D.C.; Walter, J.B.

1991-09-01T23:59:59.000Z

330

Distributed Space-Time Cooperative Schemes for Underwater Acoustic Communications  

E-Print Network [OSTI]

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

Stojanovic, Milica

331

Challenges for Efficient Communication in Underwater Acoustic Sensor Networks  

E-Print Network [OSTI]

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

Pompili, Dario

332

Acoustic and Seismic Modalities for Unattended Ground Sensors  

SciTech Connect (OSTI)

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.

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

1999-03-31T23:59:59.000Z

333

Finite Element Methods for Nonlinear Acoustics in Fluids  

E-Print Network [OSTI]

resonating acoustic cavity, and a coupled elastic/acoustic system consisting of ... linear terms in these wave equations imply that the sound speed depends on the ... have zero shear modulus, this approach suffers from an infinite dimensional...

334

Acoustic clouds: standing sound waves around a black hole analogue  

E-Print Network [OSTI]

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.

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

2015-01-28T23:59:59.000Z

335

Acoustic clouds: standing sound waves around a black hole analogue  

E-Print Network [OSTI]

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.

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

2014-01-01T23:59:59.000Z

336

Acoustic modes in combustors with complex impedances and multidimensional active  

E-Print Network [OSTI]

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

Paris-Sud XI, Universit de

337

Acoustic characteristics of bay bottom sediments in Lavaca Bay, TX  

E-Print Network [OSTI]

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...

Patch, Mary Catherine

2005-08-29T23:59:59.000Z

338

13.853 Computational Ocean Acoustics, Spring 2003  

E-Print Network [OSTI]

Wave equations for fluid and visco-elastic media. Wave-theory formulations of acoustic source radiation and seismo-acoustic propagation in stratified ocean waveguides. Wavenumber Integration and Normal Mode methods for ...

Schmidt, Henrik

339

13.811 Advanced Structural Dynamics and Acoustics, Spring 2004  

E-Print Network [OSTI]

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 ...

Schmidt, Henrik

340

Hybrid percussion : extending physical instruments using sampled acoustics  

E-Print Network [OSTI]

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 ...

Aimi, Roberto Mario, 1973-

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Ultrafast photo-acoustic spectroscopy of super-cooled liquids  

E-Print Network [OSTI]

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 ...

Klieber, Christoph

2010-01-01T23:59:59.000Z

342

Acoustic measurement of the Deepwater Horizon Macondo well flow rate  

E-Print Network [OSTI]

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 ...

Camilli, Richard

343

Active micromixer using surface acoustic wave streaming  

DOE Patents [OSTI]

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.

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

2011-05-17T23:59:59.000Z

344

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...

345

Point interactions in acoustics: one dimensional models  

E-Print Network [OSTI]

A one dimensional system made up of a compressible fluid and several mechanical oscillators, coupled to the acoustic field in the fluid, is analyzed for different settings of the oscillators array. The dynamical models are formulated in terms of singular perturbations of the decoupled dynamics of the acoustic field and the mechanical oscillators. Detailed spectral properties of the generators of the dynamics are given for each model we consider. In the case of a periodic array of mechanical oscillators it is shown that the energy spectrum presents a band structure.

C. Cacciapuoti; R. Figari; A. Posilicano

2006-07-11T23:59:59.000Z

346

Acoustic probing of salt using sonar  

E-Print Network [OSTI]

, 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...

Butler, Kenneth Bryan

1977-01-01T23:59:59.000Z

347

Acoustic microscope surface inspection system and method  

DOE Patents [OSTI]

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.

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

1991-02-26T23:59:59.000Z

348

Linear phase distribution of acoustical vortices  

SciTech Connect (OSTI)

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.

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

349

ACOUSTIC POLLUTION HOW HUMAN ACTIVITIES DISRUPT WILDLIFE COMMUNICATION  

E-Print Network [OSTI]

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

Gray, Matthew

350

Offices and dwellings: what building acoustics for sustainable development?  

E-Print Network [OSTI]

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

Paris-Sud XI, Universit de

351

Acoustics of Two-Phase Pipe Flows Samenstelling promotiecommissie  

E-Print Network [OSTI]

Acoustics of Two-Phase Pipe Flows #12;Samenstelling promotiecommissie: prof. dr. ir. L. van Universiteit Twente Acoustics of Two-Phase Pipe Flows P.J. van Dijk Cover: Lidewij van Rijssen Printed. ISBN 90-365-2188-2 c P.J. van Dijk, 2005. #12;ACOUSTICS OF TWO-PHASE PIPE FLOWS PROEFSCHRIFT ter

Twente, Universiteit

352

Kinetic theory of geodesic acoustic and related modes  

E-Print Network [OSTI]

Kinetic theory of geodesic acoustic and related modes A.I. Smolyakov Department of Physics · Geodesic Acoustic Modes (GAM) are relatively high frequency eigen-modes supported by plasma compressibility history of GAM and related modes ·1968 : Geodesic acoustic modes: Winsor, Johnson, Dawson ·2000-05: Surge

353

A new acoustic three dimensional intensity and energy density probe  

E-Print Network [OSTI]

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

Boyer, Edmond

354

Wormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks  

E-Print Network [OSTI]

), 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

Zhang, Rui

355

Coal log pipeline research at University of Missouri. 1. quarterly report for 1996, January 1--March 31, 1996  

SciTech Connect (OSTI)

This project consists of the following nine tasks: Machine design for coal log fabrication; Very rapid compaction of coal logs; Rapid compaction of coal logs; Fast-track experiments on coal log compaction; Coal log fabrication using hydrophobic binders; Drag reduction in large diameter hydraulic capsule pipeline; Automatic control of coal log pipeline system; Hydraulics of CLP (Coal Log Pipeline); and Coal heating system research. The purpose of the task, the work accomplished during this report period, and work proposed for the next quarter are described for each task.

NONE

1996-07-01T23:59:59.000Z

356

Forward Modeling of the Induction Log Response of a Fractured Geologic Formation  

E-Print Network [OSTI]

3.1 Layered Earth Model The environment used for the induction log simulations is a layered Earth model. The model consists of six layers that are assigned different thicknesses and conductivities based on the desired induction log... Tx-Rx pair has a fixed separation and is moved along a vertical profile through the subsurface taking measurements at predetermined logging points. 20 The second change to the original Seatem code involves the surrounding environment. The code...

Bray, Steven Hunter

2013-05-02T23:59:59.000Z

357

Temperatures and Natural Gamma-Ray Logs Obtained in 1986 from...  

Open Energy Info (EERE)

formation during and following drilling and possibly to ground shaking associated with present and past seismic activity in the Long Valley region.Natural gamma-ray logs...

358

Using Interactive Visualizations of WWW Log Data to Characterize Access Patterns and Inform Site Design  

E-Print Network [OSTI]

, and facilities for zooming and filtering, these visualizations provide capabilities for examining data in promoting exploration, and motivation for abandoned shopping baskets. WWW server activity logs provide

Shneiderman, Ben

359

Sub-optical wavelength acoustic wave modulation of integrated photonic resonators at microwave frequencies  

E-Print Network [OSTI]

Light-sound interactions have long been exploited in various acousto-optic devices based on bulk crystalline materials. Conventionally these devices operate in megahertz frequency range where the acoustic wavelength is much longer than the optical wavelength and a long interaction length is required to attain significant coupling. With nanoscale transducers, acoustic waves with sub-optical wavelengths can now be excited to induce strong acousto-optic coupling in nanophotonic devices. Here we demonstrate microwave frequency surface acoustic wave transducers co-integrated with nanophotonic resonators on piezoelectric aluminum nitride substrates. Acousto-optic modulation of the resonance modes at above 10 GHz with the acoustic wavelength significantly below the optical wavelength is achieved. The phase and modal matching conditions in this scheme are investigated for efficient modulation. The new acousto-optic platform can lead to novel optical devices based on nonlinear Brillouin processes and provides a direct, wideband link between optical and microwave photons for microwave photonics and quantum optomechanics.

Semere Ayalew Tadesse; Mo Li

2014-10-04T23:59:59.000Z

360

A METHODOLOGY TO INTEGRATE MAGNETIC RESONANCE AND ACOUSTIC MEASUREMENTS FOR RESERVOIR CHARACTERIZATION  

SciTech Connect (OSTI)

The work reported herein represents the third year of development efforts on a methodology to interpret magnetic resonance and acoustic measurements for reservoir characterization. In this last phase of the project we characterize a vuggy carbonate aquifer in the Hillsboro Basin, Palm Beach County, South Florida, using two data sets--the first generated by velocity tomography and the second generated by reflection tomography. First, we integrate optical macroscopic (OM), scanning electron microscope (SEM) and x-ray computed tomography (CT) images, as well as petrography, as a first step in characterizing the aquifer pore system. This pore scale integration provides information with which to evaluate nuclear magnetic resonance (NMR) well log signatures for NMR well log calibration, interpret ultrasonic data, and characterize flow units at the field scale between two wells in the aquifer. Saturated and desaturated NMR core measurements estimate the irreducible water in the rock and the variable T{sub 2} cut-offs for the NMR well log calibration. These measurements establish empirical equations to extract permeability from NMR well logs. Velocity and NMR-derived permeability and porosity relationships integrated with velocity tomography (based on crosswell seismic measurements recorded between two wells 100 m apart) capture two flow units that are supported with pore scale integration results. Next, we establish a more detailed picture of the complex aquifer pore structures and the critical role they play in water movement, which aids in our ability to characterize not only carbonate aquifers, but reservoirs in general. We analyze petrography and cores to reveal relationships between the rock physical properties that control the compressional and shear wave velocities of the formation. A digital thin section analysis provides the pore size distributions of the rock matrix, which allows us to relate pore structure to permeability and to characterize flow units at the core and borehole scales. Vp, density, porosity, and permeability logs are integrated with crosswell reflection data to produce impedance, permeability, and porosity images. These images capture three flow units that are characterized at the pore and borehole scales. The upper flow units are thin, continuous beds, and the deeper flow unit is thicker and heterogeneous. NMR well log calibration data and thin section analysis demonstrate that interwell region permeability is controlled mainly by micropores and macropores, which represent the flow unit matrices of the confined aquifer. Reflection image-derived impedance provides lateral detail and the depth of the deeper confining unit. The permeable regions identified in both parts of this phase of the study are consistent with the hydrological results of high water production being monitored between two wells in the South Florida aquifer. Finally, we describe the two major methodologies developed to support the aquifer characterization efforts--(1) a method to estimate frequency-dependent scattering attenuation based on the volume fraction and typical size of vugs or karsts, and (2) a method to more accurately interpret NMR well logs by taking into account the diffusion of magnetization between large and small pores. For the first method, we take the exact vug structure from x-ray CT scans of two carbonate cores and use 3-D finite difference modeling to determine the P-wave scattering attenuation in these cores at ultrasonic frequencies. In spite of the sharp contrast in medium properties between cavity and rock and the violation of the small perturbation assumption, the computed scattering attenuation is roughly comparable to that predicted by various random medium scattering theories. For the second method, we investigate how the diffusion of magnetization between macropores and micropores influences NMR log interpretation through 2D simulation of magnetization diffusion in realistic macropore geometries derived from digital images of thin sections. In most cases, our simulations show that the resulting simulate

Jorge O. Parra; Chris L. Hackert; Lorna L. Wilson

2002-09-20T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Acoustic-emission monitoring during hydraulic fracturing  

SciTech Connect (OSTI)

This paper reports that microseismic events or acoustic emissions associated with hydraulic fracturing are recorded with a borehole seismic tool in a deviated well during multirate injection, shut-in, and flowback. The event locations indicate that fracture orientation, length, and height are compatible with regional stress directions and estimates of the fracture size that are based on pressure decline.

Stewart, L. (Schlumberger-Doll Research (US)); Cassell, B.R. (Schlumberger Wireline Services (US)); Bol, G.M. (Nederlanse Aardolie Mij. B.V. (NL))

1992-06-01T23:59:59.000Z

362

Non-Riemannian geometry of vortex acoustics  

SciTech Connect (OSTI)

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.

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

363

Ocean Climate Change: Comparison of Acoustic  

E-Print Network [OSTI]

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

Frandsen, Jannette B.

364

Thermoacoustic Stirling Engine --An acoustic amplifier  

E-Print Network [OSTI]

National Laboratory Condensed Matter and Thermal Physics Group MS K764, Los Alamos, NM 87545 backhaus) efficiencies 6" 24 " 72 " Acoustic power: 100 W 1 kW 50 kW T.A. efficiency: 23% 30% 25% All-metal bonded PZT stacks Metal joints, rather than epoxy joints, between PZT elements allow stacks to generate high power

Lee, Dongwon

365

Potential impacts of tighter Forest Service log export restrictions  

SciTech Connect (OSTI)

Federal law restricts the export of unprocessed timber cut from national forests in the western half of the United States. Also, purchasers of national forest timber are restricted from substituting timber harvested from federal lands for privately owned timber that they export. GAO reviewed the magnitude of and the potential impacts from extending the substitution restriction to cover third parties who subsequently acquire Forest Service timber from the original purchasers - an export industry practice commonly referred to as third-party substitution. According to the Forest Service and timber industry associations, third-party substitution approximates 100 million board feet annually in the western United States. They said that if the practice were banned, some companies could acquire national forest timber at lower prices because of decreased demand and competition, and the lower prices would result in less government revenues. Also, a ban could disrupt traditional log markets and business practices. The Forest Service believes it could not enforce a ban on third-party substitution without additional legal authority and staff.

Not Available

1985-01-28T23:59:59.000Z

366

Fluid-Rock Characterization and Interactions in NMR Well Logging  

SciTech Connect (OSTI)

The objective of this project is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. This is the first annual progress report submitted to the DOE. It reports on the work completed during the reporting period even if it may have started before this period. This project is a partnership between Professor George J. Hirasaki at Rice University and Professor Kishore Mohanty at University of Houston. In addition to the DOE, this project is supported by a consortium of oil companies and service companies. The fluid properties characterization has emphasized the departure of live oils from correlations based on dead oils. Also, asphaltic components can result in a difference between the T1 and T2 relaxation time distributions as well as reduce the hydrogen index. The fluid rock characterizations that are reported here are the effects of wettability and internal magnetic field gradients. A pore reconstruction method ha s been developed to recreate three-dimensional porous media from two-dimensional images that reproduce some of their key statistical properties. A Monte Carlo simulation technique has been developed to calculate the magnetization decay in fluid saturated porous media given their pore structure.

Hirasaki, George J.; Mohanty, Kishore, K.

2001-07-13T23:59:59.000Z

367

SHORE-BASED LOG PROCESSING Bottom felt: 4058.0 mbrf  

E-Print Network [OSTI]

) the results are improved because the short-spacing has better vertical resolution. Quality Control Null value = -999.25. This value generally may replace invalid log values. During the processing, quality controlSITE 1061 1015 SHORE-BASED LOG PROCESSING HOLE 1061A Bottom felt: 4058.0 mbrf Total penetration

368

SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing  

E-Print Network [OSTI]

typing method for application in hydrocarbon-bearing shale (specifically source rock) reservoirs using conventional well logs and core data. Source rock reservoirs are known to be highly heterogeneous and often, petrophysical description of source rock reservoirs with well logs has been focused to quantifying rock

Torres-Verdn, Carlos

369

Integration of Geology, Rock-Physics, Logs, and Pre-stack Seismic for Reservoir Porosity Estimation  

E-Print Network [OSTI]

The main objective of this paper is to obtain reservoir properties, such as porosity, both at the well locations and in the inter-well regions from seismic data and well logs. The seismic and well-log datasets are from an ...

Al Muhaidib, Abdulaziz

2011-01-01T23:59:59.000Z

370

120 Forest Products Company Gather to Combat Illegal Logging March 20, 2005  

E-Print Network [OSTI]

120 Forest Products Company Gather to Combat Illegal Logging March 20, 2005 Geneva - More than 120 wood flooring companies in China. "We all must work together to eliminate illegal logging. Government forest products company representatives, government officials and conservationists gathered this week

371

Annual Logging Symposium, June 3-6, 2007 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE AND BED -  

E-Print Network [OSTI]

SPWLA 48th Annual Logging Symposium, June 3-6, 2007 1 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE; Chevron Energy Technology Company Copyright 2007, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared for presentation at the SPWLA

Torres-Verdín, Carlos

372

Illegal logging on Penan traditional landin Sarawak, Malaysia (Photo by Angelo Musco)  

E-Print Network [OSTI]

Illegal logging on Penan traditional landin Sarawak, Malaysia (Photo by Angelo Musco) New Global Alliance Formed to Undercut Illegal Logging Print this page WASHINGTON, DC, May 26, 2010 (ENS) - To reduce of the World Resources Institute, one of the founding members of the Alliance. "Some companies are not aware

373

ORIGINALS ORIGINALARBEITEN The effect of log heating temperature on the peeling process  

E-Print Network [OSTI]

with deeper and more spaced checks than high temperatures when checks are closer and less deep, becoming even by soaking--immersing the whole logs in hot water basins--or by steaming them in vats. These traditionalORIGINALS ORIGINALARBEITEN The effect of log heating temperature on the peeling process and veneer

Boyer, Edmond

374

LOG-SPECTRAL AMPLITUDE ESTIMATION WITH GENERALIZED GAMMA DISTRIBUTIONS FOR SPEECH ENHANCEMENT  

E-Print Network [OSTI]

LOG-SPECTRAL AMPLITUDE ESTIMATION WITH GENERALIZED GAMMA DISTRIBUTIONS FOR SPEECH ENHANCEMENT Bengt enhancement. Generalized Gamma distributed (GGD) priors are assumed for speech short-time spectral amplitudes by Ephraim and Malah [2]. Index Terms-- Speech Enhancement, Log-spectral Amplitude Estimator, Generalized

Alwan, Abeer

375

Impact of assumption of log-normal distribution on monthly rainfall estimation from TMI  

E-Print Network [OSTI]

-evaluate the assumption for estimates from TMI, which, unlike the SSM/I, has a 10 GHz channel. The minimum chi-square estimation technique was used for the log-normal method. To check the credibility of the estimation routines, log-normally distributed synthetic data were...

Lee, Dong Heon

2001-01-01T23:59:59.000Z

376

Strategies to Combat Illegal Logging and Forest Crime Magnitude of the problem  

E-Print Network [OSTI]

organizations and some actors in the private sector. At the 1998 G8 (Group of Eight countries) summit different types of illegal logging: High-level commercial-scale logging and related criminal activities for addressing illegal actions include: reforming concessions, policies and regulations e.g., the abilit

377

Strategies to Combat Illegal Logging and Forest Crime Magnitude of the problem  

E-Print Network [OSTI]

organizations and some actors in the private sector. At the 1998 G8 (Group of Eight countries) summit different types of illegal logging: High-level commercial-scale logging and related criminal activities. Strategies for addressing illegal actions include: reforming concessions, policies and regulations e

378

Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders  

E-Print Network [OSTI]

Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders David Gnaedig Turbo on a DSP a parallel Max-Log-MAP algorithm for turbo decoders. It consists in using SIMD instructions by the use of an adapted two-dimensional turbo code and its parallel interleaver structure. After a brief

Paris-Sud XI, Université de

379

Department of Industrial & Manufacturing Engineering Spring 2011 Log Splitter Tank Quality Improvement  

E-Print Network [OSTI]

PENNSTATE Department of Industrial & Manufacturing Engineering Spring 2011 Log Splitter Tank around a central hydraulic tank which acts as the base of the log splitter. The tanks can leak due to poor weld integrity, further aggravated by stresses on the tank during towing. Also, internal rust

Demirel, Melik C.

380

A Flexible Architecture for Statistical Learning and Data Mining from System Log Streams  

E-Print Network [OSTI]

A Flexible Architecture for Statistical Learning and Data Mining from System Log Streams Wei Xu. Human operators monitoring the sys- tem use the log data and their experience to detect failures information than the operators can discern. The data might be used to predict that a particular machine

Xu, Wei

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Mining Logs Files for Data-Driven System Management School of Computer Science  

E-Print Network [OSTI]

Mining Logs Files for Data-Driven System Management Wei Peng School of Computer Science Florida of the log files have been less emphasized in existing methods from data mining and machine learning in data representation pose new challenges. In this paper, we will describe our research efforts on mining

Li, Tao

382

Invited Applications Paper Detecting Large-Scale System Problems by Mining Console Logs  

E-Print Network [OSTI]

. Researchers and operators have been using all kinds of mon- itoring data, from the simplest numerical metrics Problems by Mining Console Logs part operator, and charged with fixing the problem-- are usuallyInvited Applications Paper Detecting Large-Scale System Problems by Mining Console Logs Wei Xu xuw

Xu, Wei

383

ENG 4793: Composite Materials and Processes 1 Non-Destructive Testing (NDT)  

E-Print Network [OSTI]

1 ENG 4793: Composite Materials and Processes 1 Non-Destructive Testing (NDT) ver 1 ENG 4793: Composite Materials and Processes 2 Types of NDT · Visual · Ultrasonic · X-ray · Thermographic · Acoustic Emission · Eddy Current · Shearography ENG 4793: Composite Materials and Processes 3 Visual Inspection

Colton, Jonathan S.

384

Materials Scientist  

Broader source: Energy.gov [DOE]

Alternate Title(s):Materials Research Engineer; Metallurgical/Chemical Engineer; Product Development Manager;

385

Viscoelastic acoustic response of layered polymer films at fluid-solid interfaces: Continuum mechanics approach  

E-Print Network [OSTI]

We have derived the general solution of a wave equation describing the dynamics of two-layere viscoelastic polymer materials of arbitrary thickness deposited on solid (quartz) surfaces in a fluid environment. Within the Voight model of viscoelastic element, we calculate the acoustic response of the system to an applied shear stress, i.e. we find the shift of the quartz generator resonance frequency and of the dissipation factor, and show that it strongly depends on the viscous loading of the adsorbed layers and on the shear storage and loss moduli of the overlayers. These results can readily be applied to quartz crystal acoustical measurements of the viscoelasticity of polymers, which conserve their shape under the shear deformations and do not flow, and layered structures such as protein films adsorbed from solution onto the surface of self-assembled monolayres.

M. V. Voinova; M. Rodahl; M. Jonson; B. Kasemo

1998-05-21T23:59:59.000Z

386

Development of a geothermal acoustic borehole televiewer  

SciTech Connect (OSTI)

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.

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

1983-08-01T23:59:59.000Z

387

NW-MILO Acoustic Data Collection  

SciTech Connect (OSTI)

There is an enduring requirement to improve our ability to detect potential threats and discriminate these from the legitimate commercial and recreational activity ongoing in the nearshore/littoral portion of the maritime domain. The Northwest Maritime Information and Littoral Operations (NW-MILO) Program at PNNLs Coastal Security Institute in Sequim, Washington is establishing a methodology to detect and classify these threats - in part through developing a better understanding of acoustic signatures in a near-shore environment. The purpose of the acoustic data collection described here is to investigate the acoustic signatures of small vessels. The data is being recorded continuously, 24 hours a day, along with radar track data and imagery. The recording began in August 2008, and to date the data contains tens of thousands of signals from small vessels recorded in a variety of environmental conditions. The quantity and variety of this data collection, with the supporting imagery and radar track data, makes it particularly useful for the development of robust acoustic signature models and advanced algorithms for signal classification and information extraction. The underwater acoustic sensing system is part of a multi-modal sensing system that is operating near the mouth of Sequim Bay. Sequim Bay opens onto the Straight of Juan de Fuca, which contains part of the border between the U.S. and Canada. Table 1 lists the specific components used for the NW-MILO system. The acoustic sensor is a hydrophone permanently deployed at a mean depth of about 3 meters. In addition to a hydrophone, the other sensors in the system are a marine radar, an electro-optical (EO) camera and an infra-red (IR) camera. The radar is integrated with a vessel tracking system (VTS) that provides position, speed and heading information. The data from all the sensors is recorded and saved to a central server. The data has been validated in terms of its usability for characterizing the signatures of small vessels. The sampling rate of 8 kHz and low pass filtering to 2 kHz results in an alias-free signal in the frequency band that is appropriate for small vessels. Calibration was performed using a Lubell underwater speaker so that the raw data signal levels can be converted to sound pressure. Background noise is present due to a nearby pump and as a result of tidal currents. More study is needed to fully characterize the noise, but it does not pose an obstacle to using the acoustic data for the purposes of vessel detection and signature analysis. The detection range for a small vessel was estimated using the calibrated voltage response of the system and a cylindrical spreading model for transmission loss. The sound pressure of a typical vessel with an outboard motor was found to be around 140 dB mPa, and could theoretically be detected from 10 km away. In practical terms, a small vessel could reliably be detected from 3 - 5 km away. The data is archived in netCDF files, a standard scientific file format that is "self describing". This means that each data file contains the metadata - timestamps, units, origin, etc. - needed to make the data meaningful and portable. Other file formats, such as XML, are also supported. A visualization tool has been developed to view the acoustic data in the form of spectrograms, along with the coincident radar track data and camera images.

Matzner, Shari; Myers, Joshua R.; Maxwell, Adam R.; Jones, Mark E.

2010-02-17T23:59:59.000Z

388

Acoustic data transmission through a drillstring  

DOE Patents [OSTI]

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.

Drumheller, Douglas S. (Cedar Crest, NM)

1992-01-01T23:59:59.000Z

389

Acoustic data transmission through a drillstring  

DOE Patents [OSTI]

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.

Drumheller, D.S.

1992-07-07T23:59:59.000Z

390

Pulse combusted acoustic agglomeration apparatus and process  

DOE Patents [OSTI]

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.

Mansour, Momtaz N. (Columbia, MD)

1993-01-01T23:59:59.000Z

391

Pulse combusted acoustic agglomeration apparatus and process  

DOE Patents [OSTI]

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.

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

1994-01-01T23:59:59.000Z

392

Acoustic measurement of potato cannon velocity  

E-Print Network [OSTI]

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.

Courtney, M; Courtney, Amy; Courtney, Michael

2006-01-01T23:59:59.000Z

393

Acoustic enhancement for photo detecting devices  

DOE Patents [OSTI]

Provided are improvements to photo detecting devices and methods for enhancing the sensitivity of photo detecting devices. A photo detecting device generates an electronic signal in response to a received light pulse. An electro-mechanical acoustic resonator, electrically coupled to the photo detecting device, damps the electronic signal and increases the signal noise ratio (SNR) of the electronic signal. Increased photo detector standoff distances and sensitivities will result.

Thundat, Thomas G; Senesac, Lawrence R; Van Neste, Charles W

2013-02-19T23:59:59.000Z

394

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...

396

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...

397

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...

398

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...

399

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...

400

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...

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401

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...

402

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...

403

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...

404

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...

405

Independent trapping and manipulation of microparticles using dexterous acoustic tweezers  

SciTech Connect (OSTI)

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.

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

406

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...

407

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...

408

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...

409

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...

410

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...

411

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...

412

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...

413

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...

414

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...

415

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...

416

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...

417

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...

418

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...

419

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...

420

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...

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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421

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...

422

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...

423

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...

424

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...

425

Acoustic scattering by axisymmertic finite-length bodies with application to fish : measurement and modeling  

E-Print Network [OSTI]

This thesis investigates the complexities of acoustic scattering by finite bodies in general and by fish in particular through the development of an advanced acoustic scattering model and detailed laboratory acoustic ...

Reeder, D. Benjamin (Davis Benjamin), 1966-

2002-01-01T23:59:59.000Z

426

May 20, 2002: Illegal Logging Threatens Ecological and Economic Stability Update 11: May 21, 2002-7  

E-Print Network [OSTI]

companies with flood-related claims. Rampant deforestation, much of it from illegal logging, has destroyedMay 20, 2002: Illegal Logging Threatens Ecological and Economic Stability Update 11: May 21, 2002-7 Copyright © 2002 Earth Policy Institute Illegal Logging Threatens Ecological and Economic Stability Janet

427

Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder  

E-Print Network [OSTI]

Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder--Generally, the Log-MAP kernel of the turbo decoding consume large memories in hardware implement- tation of the turbo decoder is implemented to verify the proposed memory-reduced Log- MAP kernel in 3.04?3.04mm2 core

Hung, Shih-Hao

428

weapons material  

National Nuclear Security Administration (NNSA)

2%2A en Office of Weapons Material Protection http:nnsa.energy.govaboutusourprogramsnonproliferationprogramofficesinternationalmaterialprotectionandcooperation-1

429

[Type the company name] Materials owned by the Binghamton Libraries can be found using the library catalog by going to  

E-Print Network [OSTI]

[Type the company name] Materials owned by the Binghamton Libraries can be found using the library the Annex Request Form or log in to your account to request the item. For items held at the University

Suzuki, Masatsugu

430

Interpretation of Array Production Logging Measurements in Horizontal Wells for Flow Profile  

E-Print Network [OSTI]

and possible back flow of denser phases result in misinterpretation of the inflow distribution. To assess the downhole flow conditions more accurately, logging tools have been developed to overcome the flow regime related issues. Multiple-sensor array tools...

Liao, Lulu

2013-12-12T23:59:59.000Z

431

MATHEMATICS AND SCIENCE CENTERS PROFESSIONAL DEVELOPMENT ACTIVITY LOG/EVENT RECORD  

E-Print Network [OSTI]

Engineering ___ Network Assessment Project ___ TI Science ___ MI STEM Partnership ___ Other DescribeMATHEMATICS AND SCIENCE CENTERS PROFESSIONAL DEVELOPMENT ACTIVITY LOG/EVENT RECORD This form) GROUP: (Check one) (Check one) ___ Mathematics ___ Teachers ___ Pre K ___ Science ___ Administrators

432

Lithology and well log study of Campbell E-2 geothermal test...  

Open Energy Info (EERE)

well log study of Campbell E-2 geothermal test well, Humboldt House geothermal prospect, Pershing County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library...

433

High-energy photon transport modeling for oil-well logging  

E-Print Network [OSTI]

Nuclear oil well logging tools utilizing radioisotope sources of photons are used ubiquitously in oilfields throughout the world. Because of safety and security concerns, there is renewed interest in shifting to ...

Johnson, Erik D., Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

434

"Tier","PRIORITY","Total Tickets Logged","Tickets Closed","Currently...  

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

"TOTAL",,255,261,0 "SCR",,255,255,0 ,,0.9843137255,0.9616858238 "Total Issues Report - ESS",,,,"20120101 - 20120418" "Tier","PRIORITY","Total Tickets Logged","Tickets...

435

Precise inversion of logged slownesses for elastic parameters in a gas shale formation  

E-Print Network [OSTI]

Dipole sonic log data recorded in a vertical pilot well and the associated production well are analyzed over a 2001100-ft section of a North American gas shale formation. The combination of these two wells enables angular ...

Miller, Douglas E.

436

E-Print Network 3.0 - acoustic cavitation bubble Sample Search...  

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

Collection: Physics 62 Acoustic saturation in bubbly cavitating flow adjacent to an oscillating wall T. Colonius,a) Summary: Acoustic saturation in bubbly cavitating flow...

437

E-Print Network 3.0 - acoustic measuring instruments Sample Search...  

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

text... III Center for Computer Research in Music and Acoustics (CCRMA) ... Source: Smith III, Julius Orion - Center for Computer Research in Music and Acoustics, Stanford...

438

E-Print Network 3.0 - acoustic experience shapes Sample Search...  

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

Underwater Acoustic Summary: A. Aerial Channel Profiling The first set of experiments profile the aerial acoustic channel... . In these experiments, we use an IPAQ 5550, with a...

439

E-Print Network 3.0 - alternative proposal acoustic Sample Search...  

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

'acoustique 1990 APPLICATION OF FAST HARTLEY TRANSFORM TO ACOUSTIC INTENSITY MEASUREMENT W.S. GAN Acoustical... Services (1989)Pte Ltd, 29 Telok Ayer Street, Singapore 0104....

440

E-Print Network 3.0 - acoustic resonance determination Sample...  

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

Collection: Mathematics 31 Acoustic Identification of Unknown Fluids Summary: Acoustic Identification of Unknown Fluids Executive Overview: Scientists at Los Alamos National......

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


441

E-Print Network 3.0 - acoustic multivariate condition Sample...  

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

for: acoustic multivariate condition Page: << < 1 2 3 4 5 > >> 1 ME706: Acoustics & Aerodynamic Sound Aerodynamic sound is the noise' produced by hydrodynamic (turbulent')...

442

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...

443

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...

444

E-Print Network 3.0 - acoustic startle responding Sample Search...  

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

Sample search results for: acoustic startle responding Page: << < 1 2 3 4 5 > >> 1 Cognitive, Affective, & Behavioral Neuroscience 2004, 4 (3), 307-316 Summary: acoustic startle...

445

E-Print Network 3.0 - acoustic heating Sample Search Results  

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

with the cooler air. Since the timing in the acoustic cycle is such that maximum heat transfer corresponds... . Under such conditions, acoustic amplification is...

446

E-Print Network 3.0 - acoustic wave actuated Sample Search Results  

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

Plasma actuator, flow control, acoustic control, airframe noise 1. INTRODUCTION 1.1. Background... applications. Section 3 reviews some applications related to aero-acoustics,...

447

E-Print Network 3.0 - acoustic modes induced Sample Search Results  

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

Woods Hole Oceanographic Institution Collection: Engineering 23 Kinetic theory of geodesic acoustic and related modes Summary: Kinetic theory of geodesic acoustic and related...

448

E-Print Network 3.0 - acoustic envelope shape Sample Search Results  

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

variable, and the spectrum of an acoustic instrument... . In this work, acoustic performances are analyzed to derive amplitude and frequency envelopes... less envelope shape...

449

E-Print Network 3.0 - acoustic streaming devices Sample Search...  

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

Collection: Engineering 10 Surface acoustic wave (SAW) directed droplet flow in microfluidics for PDMS devices Summary: Surface acoustic wave (SAW) directed droplet flow in...

450

E-Print Network 3.0 - acoustic spectrum analysis Sample Search...  

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

of Electromagnetism and Acoustics Institute of Electrical Engineering 12;EE... Industrial Day. Page 2 Electromagnetism, Acoustics, Microwaves, Antennas LEMA at a glance...

451

E-Print Network 3.0 - acoustic testing Sample Search Results  

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

OCEAN Summary: A COMPARISON OF ACOUSTIC THERMOMETRY, XBT, TOPEX, AND HOT OBSERVATIONS OF OCEAN TEMPERATURE... @apl.washington.edu) Abstract - Acoustic thermometry offers naturally...

452

E-Print Network 3.0 - acoustic wave integrated Sample Search...  

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

93 Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated Granular Medium Summary: 1 Reflection of Nonlinear Acoustic Waves from the...

453

E-Print Network 3.0 - acoustic wave total Sample Search Results  

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

98 Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated Granular Medium Summary: 1 Reflection of Nonlinear Acoustic Waves from the...

454

E-Print Network 3.0 - acoustic gravity waves Sample Search Results  

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

45 Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated Granular Medium Summary: 1 Reflection of Nonlinear Acoustic Waves from the...

455

E-Print Network 3.0 - acoustic wave sensing Sample Search Results  

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

62 Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated Granular Medium Summary: 1 Reflection of Nonlinear Acoustic Waves from the...

456

E-Print Network 3.0 - acoustic tiltedti media Sample Search Results  

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

Follow geometry and physical properties of a desired acoustic system Efficient Source: Smith III, Julius Orion - Center for Computer Research in Music and Acoustics, Stanford...

457

E-Print Network 3.0 - acoustic propagation experiment Sample...  

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

of perceptual measurements Statistics for acoustics experiments Acoustics of porous media . The second... of Waveguides: Wave propagation in a guide Mode matching ...

458

E-Print Network 3.0 - acoustic neurinoma presenting Sample Search...  

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

Grant Collection: Engineering 20 Wave Gliders for Acoustic Applications Asst. Prof. Brian Bingham Summary: the design of a vehicle with integrated acoustic communication and...

459

E-Print Network 3.0 - acoustics Sample Search Results  

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

Collection: Geosciences 24 Wave Gliders for Acoustic Applications Asst. Prof. Brian Bingham Summary: Wave Gliders for Acoustic Applications Asst. Prof. Brian Bingham...

460

E-Print Network 3.0 - amplitude ion-acoustic waves Sample Search...  

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

; Physics 2 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
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461

E-Print Network 3.0 - amplitude acoustic wave Sample Search Results  

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

Geosciences 15 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

462

E-Print Network 3.0 - acoustic waves moving Sample Search Results  

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

Engineering 14 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

463

E-Print Network 3.0 - acoustic wave gas Sample Search Results  

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

Physics 19 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

464

E-Print Network 3.0 - acoustic wave induced Sample Search Results  

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

Mathematics 9 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

465

E-Print Network 3.0 - acoustic waves generated Sample Search...  

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

Sciences 17 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

466

E-Print Network 3.0 - acoustic wave detector Sample Search Results  

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

Physics 3 Ion acoustic wave generation by a standing electromagnetic field in a subcritical plasma Summary: 233 Ion acoustic wave generation by a standing electromagnetic...

467

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

E-Print Network [OSTI]

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...

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

468

E-Print Network 3.0 - acoustic duct system Sample Search Results  

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

Mitigation of Acoustic Resonance using Electrically Shunted Loudspeakers Summary: and resistor. Experimental application to a closed acoustic duct results in 14 dB pressure...

469

E-Print Network 3.0 - acoustic ducts Sample Search Results  

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

Mitigation of Acoustic Resonance using Electrically Shunted Loudspeakers Summary: and resistor. Experimental application to a closed acoustic duct results in 14 dB pressure...

470

E-Print Network 3.0 - acoustic scattering problems Sample Search...  

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

of ocean inhomogeneities by the times structure of an acoustic signal XN... acoustic tomography of the ocean is discussed. The method is based on the fact that ... Source:...

471

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

E-Print Network [OSTI]

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

New South Wales, University of

472

Results of investigations at the Zunil geothermal field, Guatemala: Well logging and brine geochemistry  

SciTech Connect (OSTI)

The well logging team from Los Alamos and its counterpart from Central America were tasked to investigate the condition of four producing geothermal wells in the Zunil Geothermal Field. The information obtained would be used to help evaluate the Zunil geothermal reservoir in terms of possible additional drilling and future power plant design. The field activities focused on downhole measurements in four production wells (ZCQ-3, ZCQ-4, ZCQ-5, and ZCQ-6). The teams took measurements of the wells in both static (shut-in) and flowing conditions, using the high-temperature well logging tools developed at Los Alamos National Laboratory. Two well logging missions were conducted in the Zunil field. In October 1988 measurements were made in well ZCQ-3, ZCQ-5, and ZCQ-6. In December 1989 the second field operation logged ZCQ-4 and repeated logs in ZCQ-3. Both field operations included not only well logging but the collecting of numerous fluid samples from both thermal and nonthermal waters. 18 refs., 22 figs., 7 tabs.

Adams, A.; Dennis, B.; Van Eeckhout, E.; Goff, F.; Lawton, R.; Trujillo, P.E.; Counce, D.; Archuleta, J. (Los Alamos National Lab., NM (USA)); Medina, V. (Instituto Nacional de Electrificacion, Guatemala City (Guatemala). Unidad de Desarollo Geotermico)

1991-07-01T23:59:59.000Z

473

Study of well logs from Cove Fort-Sulphurdale KGRA, Millard and Beaver Counties, Utah  

SciTech Connect (OSTI)

Union Oil Company drilled four geothermal test wells in the Cove Fort-Sulphurdale KGRA between 1975 and 1979. A fairly complete suite of well logs were recorded for the three deeper holes, and these data are presented as composite well log plots in this report. The composite well log plots have facilitated the interpretation of limestone, dolomite, sandstone, quartz-monzonite, serpentine, and volcanic lithologies and the identification of numerous fractures. This has been especially helpful because of the extensive lost circulaton zones and poor cuttings recovery. Intraformational flow was identified by a fluid migration-temperature tracer log at depth in CFSU 31-33. Well log crossplots were computed to assist in lithologic identification and the determination of physical properties for specific depth intervals in a given hole. The presence of hydrous minerals sometimes results in neutron porosity somewhat higher than the true nonfracture porosity, which is generally less than 4%. Permeability is clearly controlled by fractures. A maximum well temperature of 178.9/sup 0/C, low flow rates and low probable percent flash indicate these wells are subeconomic for electric generation at present. The well log study has substantially improved our understanding of the reservoir as presently drilled.

Glenn, W.E.; Ross, H.P.

1982-07-01T23:59:59.000Z

474

Design and Instrumentation of a Measurement and Calibration System for an Acoustic Telemetry System  

SciTech Connect (OSTI)

The Juvenile Salmon Acoustic Telemetry System (JSATS) is an active sensing technology developed by Portland District, the U.S. Army Corps of Engineers for detecting and tracking small fish. It is used at hydroelectric projects and in the laboratory for evaluating behavior and survival of juvenile salmonids migrating through the Federal Columbia River Power System to the Pacific Ocean. It provides critical data for salmon protection and development of more fish-friendly hydroelectric facilities. The objective of this study was to design and build a measurement and calibration system for evaluating the JSATS component, because the JSATS requires comprehensive acceptance and performance testing in a controlled environment before it is deployed in the field. The system consists of a reference transducer, a water test tank lined with anechoic material, a motion control unit, a reference receiver, a signal conditioner and amplifier unit, a data acquisition board, MATLAB control and analysis interface, and a computer. The fully integrated system has been evaluated successfully at various simulated distances and using different encoded signals at frequencies within the bandwidth of the JSATS transmitter. It provides accurate acoustic mapping capability in a controlled environment and automates the process that allows real-time measurements and evaluation of the piezoelectric transducers, sensors, or the acoustic fields. The measurement and calibration system has been in use since 2009 for acceptance and performance testing of, and further improvements to, the JSATS.

Deng, Zhiqun; Weiland, Mark A.; Carlson, Thomas J.; Eppard, M. B.

2010-03-31T23:59:59.000Z

475

Well Logging Security Initiatives | Y-12 National Security Complex  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and Materials Disposition3February 2015ProgramMyWelcomeWelding

476

Acoustic resonator and method of making same  

DOE Patents [OSTI]

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.

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

1983-10-13T23:59:59.000Z

477

Acoustic resonator and method of making same  

DOE Patents [OSTI]

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.

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

1985-03-05T23:59:59.000Z

478

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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32Department ofMoving Away fromMultifamilyMultipurpose Acoustic

479

Composite slip table of dissimilar materials for damping longitudinal modes  

DOE Patents [OSTI]

A vibration slip table for use in a vibration testing apparatus is disclosed. The tables comprised of at least three composite layers of material; a first metal layer, a second damping layer, and a third layer having a high acoustic velocity relative to the first layer. The different acoustic velocities between the first and third layers cause relative shear displacements between the layers with the second layer damping the displacements between the first and third layers to reduce the table longitudinal vibration modes. 6 figures.

Gregory, D.L.; Priddy, T.G.; Smallwood, D.O.; Woodall, T.D.

1991-06-18T23:59:59.000Z

480

Acoustic wave propagation in two-phase heterogeneous porous media  

E-Print Network [OSTI]

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.

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

2015-03-19T23:59:59.000Z

Note: This page contains sample records for the topic "material acoustic logs" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS  

E-Print Network [OSTI]

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

Buffa, Annalisa

482

Three-Dimensional Routing in Underwater Acoustic Sensor Networks  

E-Print Network [OSTI]

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

Pompili, Dario

483

Acoustic emission monitoring of HFIR vessel during hydrostatic testing  

SciTech Connect (OSTI)

This report discusses the results and conclusions reached from applying acoustic emission monitoring to surveillance of the High Flux Isotope Reactor vessel during pressure testing. The objective of the monitoring was to detect crack growth and/or fluid leakage should it occur during the pressure test. The report addresses the approach, acoustic emission instrumentation, installation, calibration, and test results.

Friesel, M.A.; Dawson, J.F.

1992-08-01T23:59:59.000Z

484

Characterizing Ocean Turbulence from Argo, Acoustic Doppler, and Simulation Data  

E-Print Network [OSTI]

. TurbSim models statistics at the height of a turbine hub (5m) well, but do not model coherent eventsCharacterizing Ocean Turbulence from Argo, Acoustic Doppler, and Simulation Data Katherine Mc Ocean Turbulence from Argo, Acoustic Doppler, and Simulation Data written by Katherine McCaffrey has

Fox-Kemper, Baylor

485

A decade of acoustic thermometry in the North Pacific Ocean  

E-Print Network [OSTI]

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

Frandsen, Jannette B.

486

Autonomous Data Collection from Underwater Sensor Networks using Acoustic Communication  

E-Print Network [OSTI]

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

Sukhatme, Gaurav S.

487

Resonant acoustic transducer system for a well drilling string  

DOE Patents [OSTI]

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.

Nardi, Anthony P. (Burlington, MA)

1981-01-01T23:59:59.000Z

488

Resonant acoustic transducer system for a well drilling string  

DOE Patents [OSTI]

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.

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

1981-01-01T23:59:59.000Z

489

Final evaluation of the acoustics of the APS conference center  

SciTech Connect (OSTI)

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.

Restrepo, J.M.

1995-11-01T23:59:59.000Z

490

An Advanced Channel Framework for Improved Underwater Acoustic Network Simulations  

E-Print Network [OSTI]

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

Zhou, Shengli

491

Trapping and Frequency Variability in Electron Acoustic Waves  

E-Print Network [OSTI]

Trapping and Frequency Variability in Electron Acoustic Waves C.F. Driscoll, F. Anderegg, D 92093 USA Abstract. Electron Acoustic Waves (EAWs) with a phase velocity less than twice the plasma Langmuir waves, and at large excitations resonance is observed over a broad range. Laser Induced

California at San Diego, University of

492

ACOUSTIC STUDY OF THE UD / GAMESA WIND TURBINE PROJECT  

E-Print Network [OSTI]

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

Firestone, Jeremy

493

STOCHASTIC SEISMIC EMISSION FROM ACOUSTIC GLORIES AND THE QUIET SUN  

E-Print Network [OSTI]

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

Braun, Douglas C.

494

Exploiting the BandwidthDistance Relationship in Underwater Acoustic Networks  

E-Print Network [OSTI]

(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

Stojanovic, Milica

495

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...

496

The study of waves is clearly an important subject in acoustics because sound energy is transmitted by waves traveling though air. Furthermore, it turns out that the  

E-Print Network [OSTI]

Waves The study of waves is clearly an important subject in acoustics because sound energy energy without any net movement of mass. In other words the energy in the wave moves from point A to point B without moving any material from A to B. After transmission of wave energy the medium is left

Robertson, William

497

Generation of Sound Bullets with a Nonlinear Acoustic Lens  

E-Print Network [OSTI]

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.

Alessandro Spadoni; Chiara Daraio

2009-08-31T23:59:59.000Z

498

HADES - Hydrophone for Acoustic Detection at South Pole  

E-Print Network [OSTI]

The South Pole Acoustic Test Setup (SPATS) is located in the upper part of the optical neutrino observatory IceCube, currently under construction. SPATS consists of four strings at depths between 80 m and 500 m below the surface of the ice with seven stages per string. Each stage is equipped with an acoustic sensor and a transmitter. Three strings (string A-C) were deployed in the austral summer 2006/07. SPATS was extended by a fourth string (string D) with second generation sensors and transmitters in 2007/08. One second generation sensor type HADES (Hydrophone for Acoustic Detection at South Pole) consists of a ring-shaped piezo-electric element coated with polyurethane. The development of the sensor, optimization of acoustic transmission by acoustic impedance matching and first in-situ results will be discussed.

Semburg, Benjamin

2008-01-01T23:59:59.000Z

499

HADES - Hydrophone for Acoustic Detection at South Pole  

E-Print Network [OSTI]

The South Pole Acoustic Test Setup (SPATS) is located in the upper part of the optical neutrino observatory IceCube, currently under construction. SPATS consists of four strings at depths between 80 m and 500 m below the surface of the ice with seven stages per string. Each stage is equipped with an acoustic sensor and a transmitter. Three strings (string A-C) were deployed in the austral summer 2006/07. SPATS was extended by a fourth string (string D) with second generation sensors and transmitters in 2007/08. One second generation sensor type HADES (Hydrophone for Acoustic Detection at South Pole) consists of a ring-shaped piezo-electric element coated with polyurethane. The development of the sensor, optimization of acoustic transmission by acoustic impedance matching and first in-situ results will be discussed.

Benjamin Semburg; for the IceCube Collaboration

2008-11-07T23:59:59.000Z

500

Scintillator material  

DOE Patents [OSTI]

An improved scintillator material comprising cerium fluoride is disclosed. Cerium fluoride has been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to known scintillator materials such as thallium-doped sodium iodide, barium fluoride and bismuth germanate. As a result, cerium fluoride is favorably suited for use as a scintillator material in positron emission tomography. 4 figs.

Anderson, D.F.; Kross, B.J.

1992-07-28T23:59:59.000Z