American Society of Civil Engineers

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Found 459 Records with the keyword term of "Acoustic techniques"

Displaying 100 records - please modify your search for better results.

2013  NASA Glenn’s Contributions to Aircraft Engine Noise Research

2013  Pavement Macrotexture Monitoring through Sound Generated by a Tire-Pavement Interaction

2013  Remote Monitoring of Harsh Environments Using Acoustic Emissions

2012  Acoustic Detection of Leaks in Water Pipelines Using Measurements inside Pipe

2012  Automatic Delamination Detection of Concrete Bridge Decks Using Impact Signals

2012  Damage Evaluation for Concrete Bridge Deck by Means of Stress Wave Techniques

2012  Detection of Initial Yield and Onset of Failure in Bonded Posttensioned Concrete Beams

2012  Detection of the Presence of Broken Wires in Cables by Acoustic Emission Inspection

2012  Influence of Solid Particle Parameters on the Sound Speed and Attenuation of Pulses in ADM

2012  Noise in Turbulence Measurements Using Acoustic Doppler Velocimetry

2012  Probabilistic Prognosis of Fatigue Crack Growth Using Acoustic Emission Data

2012  Repair Effects and Acoustic Emission Technique-Based Fracture Evaluation for Predamaged Concrete Columns Confined with Fiber-Reinforced Polymers

2012  Separation Zone in Flow past a Spur Dyke on Rigid Bed Meandering Channel

2012  Signal Postprocessing Technique and Uncertainty Analysis of ADV Turbulence Measurements on Free Hydraulic Jumps

2012  Temporal Variation of Scour around Circular Compound Piers

2012  Variance of Discharge Estimates Sampled Using Acoustic Doppler Current Profilers from Moving Platforms

2011  The Acoustic Characteristics of Low Noise Asphalt Concrete

2011  Asset Management of Asbestos Cement Pipes Using Acoustic Methods: Theory and Case Studies

2011  Coupling High-Resolution Acoustic Sensor Measurements with Analytical and Numerical Porous Media Solute Transport Modeling

2011  Damage Assessment and Ductility Evaluation of Post Tensioned Beams with Hybrid FRP Tendons

2011  Detection of Critical Fatigue Cracks in Steel Bridge Materials with Remote Acoustic Emission Monitoring

2011  Experimental Study on Acoustic Emission Characteristics of Damage Process for Steel Fibre Concrete under Unixial Tension

2011  Experimental Study on Detection and Location of Pipeline Leakage Based on Acoustic Emission Technique

2011  Flow Field and Morphology Mapping Using ADCP and Multibeam Techniques: Survey in the Po River

2011  Graphical User Interface for Guided Acoustic Waves

2011  Investigation into the Fatigue Damage Process of Rubberized Concrete and Plain Concrete by AE Analysis

2011  Post Rehabilitation Assessment of System Integrity and Effectiveness of Retro Fitted Cathodic Protection Using Long Term Acoustic Monitoring Data

2011  Procedures for Fatigue Crack Growth Monitoring and Fatigue Life Prediction Using Acoustic Emission Data and Neural Networks

2011  Restrained Shrinkage Cracking in Concrete Elements: Role of Substrate Bond on Crack Development

2011  Simulation of Gas Pipeline Leak Detection Based on Acoustic Emission and Wavelet Packet Analysis

2011  Velocity Contour Weighting Method. II: Evaluation in Trapezoidal Channels and Roughness Sensitivity

2010  Acoustic Based Condition Assessment of Asbestos Cement Water Transmission Laterals

2010  Acoustic Particle-Size Analyzer for Planetary Exploration

2010  Acoustic Wall Thickness Assessment of Large Diameter Mains

2010  Aquatic Habitat Bottom Classification Using ADCP

2010  Assessment of Construction Joint Effect in Full-Scale Concrete Beams by Acoustic Emission Activity

2010  Comparative Study of Acoustic Emission and Scanning Electron Microscope to Evaluate Fracture Process Zone in Concrete Beams

2010  Damage Monitoring of Bridge Cable through Acoustic Emission Technique

2010  Embedded Cement-Based Piezoelectric Sensors for Acoustic Emission Detection in Concrete

2010  Estimation of Power Spectra of Acoustic-Doppler Velocimetry Data Contaminated with Intermittent Spikes

2010  Field Investigation of Acoustic Performance of Various Asphalt Surface Mixes

2010  Monitoring Suspended Sediment Dynamics Using MBES

2010  Pipe Wall Evaluation Using Acoustic Pulses

2010  Relationship between Acoustic Backscatter Strength and Suspended Sediment Concentration using a 6 MHz Nortek Vector Velocimeter

2010  Subcritical Contraction for Improved Open-Channel Flow Measurement Accuracy with an Upward-Looking ADVM

2010  Underwater Acoustic Imaging Devices for Portable Scour Monitoring

2010  Vehicle Acoustic Signal Signature Recognition Based on Karhunen-Loeve Transform

2009  Acoustic Fiber Optic Monitoring: How It Is Changing the Remaining Service Life of the Water Authority’s Pipelines

2009  Acoustic Methods for Determining Remaining Pipe Wall Thickness in Asbestos Cement and Ferrous Pipes

2009  Advances in Acoustic Methods for Locating Leaks in Plastic Pipe and Trunk Mains

2009  Airborne Acoustic Method to Determine the Volumetric Water Content of Unsaturated Sands

2009  Assessing 380km of PCCP Using Acoustic Monitoring — A Comparison of Technologies

2009  Creep-Damage Coupled Effects: Experimental Investigation on Bending Beams with Various Sizes

2009  Design and Field Evaluation of Hybrid FRP/Reinforced Concrete Superstructure System

2009  Experimental Characterization and Optimization of Hybrid FRP/RC Bridge Superstructure System

2009  Global Monitoring of Large Concrete Structures Using Acoustic Emission and Ultrasonic Techniques: Case Study

2009  Investigation of Two Elemental Error Sources in Boat-Mounted Acoustic Doppler Current Profiler Measurements by Large Eddy Simulations

2009  Mean Flow and Turbulence around a Laboratory Spur Dike

2009  A Semi-Analytical Method for Solving Structural Noise of Viaduct Box Beam

2009  Traffic Incident Acoustic Recognition Based on Wavelet Decomposition and SVM

2009  Use of Acoustic Monitoring Data for PCCP Condition Assessment

2008  1 kW Power Transmission Using Wireless Acoustic-Electric Feedthrough (WAEF)

2008  Acoustic Monitoring of Terrorist Intrusion in a Drinking Water Network

2008  Bathymetric Survey and Acoustic Sediment Profiling of Fort Hood, Texas Sediment Retention Ponds and Cowhouse Reach, Belton Lake

2008  Cement-Based Piezoelectric Sensor for Acoustic Emission Detection in Concrete Structures

2008  Determination of Soil Characteristic Frequency Using Acoustic Techniques

2008  Estimation of Soil Permeability Using an Acoustic Technique

2008  Evaluation of an Un-Tethered Free-Swimming Acoustic Leak Detection Technology

2008  Feasibility of Treating Contaminated Dredged Sediments Using Ultrasound with Acoustic and Flow Fields

2008  Flow Structure at Different Stages in a Meander-Bend with Bendway Weirs

2008  Hot-Spot Damage Monitoring in Aerospace Composites Using Acoustic Bandgap (ABG) Sensors

2008  Improving Precision in the Reference Velocity of ADCP Measurements Using a Kalman Filter with GPS and Bottom Track

2008  Increasing Noise Transmission Loss Across an Aluminum Panel Using PZT Actuators

2008  Numerical Analysis of Acoustic Wave Propagation in Layered Carbon Nanofiber Composites

2008  Response Characterization of a Fiber Bragg Grating Sensor to Different Sound Tones

2008  Six Surface Steady State Acoustic Radiosity

2008  Superload Evaluation of the Bonnet Carré Spillway Bridge

2008  Using Acoustic Emissions to Detect Damage in Historical Stone Masonry

2007  Acoustic Achievement

2007  Acoustic Velocimetry for Riverine Environments

2007  ADCP Measurements of Gravity Currents in the Chicago River, Illinois

2007  Application of Acoustic Doppler Velocimeters for Streamflow Measurements

2007  Comparison of Fixed- and Moving-Vessel Flow Measurements with an aDp in a Large River

2007  Correcting Acoustic Doppler Current Profiler Discharge Measurements Biased by Sediment Transport

2007  Damage Evaluation with P-Wave Velocity Measurements during Uniaxial Compression Tests on Argillaceous Rocks

2007  Determination of Soil Permeability Using an Acoustic Technique

2007  Direct Automatic Detecting Technique of Traffic Accident Based on Acoustic Signals

2007  Errors in Acoustic Doppler Profiler Velocity Measurements Caused by Flow Disturbance

2007  Evaluation of Mean Velocity and Turbulence Measurements with ADCPs

2007  Improved Estimation of ADCP Apparent Bed-Load Velocity Using a Real-Time Kalman Filter

2007  Measuring the Dispersion Coefficient with Acoustic Doppler Current Profilers

2007  NewsBriefs: Radio Telescope Array Activated (Search for Extra--Terrestrial Intelligence Institute)

2007  Perfect Harmony

2007  Turbulence Descriptions in Two Cobble-Bed River Reaches

2007  Validation of Streamflow Measurements Made with Acoustic Doppler Current Profilers

2007  Vehicle Classification Using Acoustic Energy Signature in Wavelet Scale Space and Neural Network

2006  Acoustic Emission Damage Assessment of Steel/CFRP Bonds for Rehabilitation

2006  Acoustic Testing of Hollow Core Fairing Designs

2006  Application Study of Real-Time Acoustic Monitoring System for Pre-Stresses Anchor System at Taiwan

2006  Assessment of Localized Damage in Concrete under Compression using Acoustic Emission