Experimental and Numerical Investigations of the Gaussian Suppression of Sound by Sound

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Open LibraryOL11851462M
ISBN 101423571940
ISBN 109781423571940

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Experimental and numerical investigations of the γ’’ and γ’ precipitation kinetics in Alloy calculations are based on sound physical principles rather than purely statistical.

The numerical results obtained by the proposed model were validated by the experimental results obtained by Flores et al. It was observed that the new nonlinear contact force model could effectively describe the contact force of planar clearance revolute joints for both lower and higher coefficient of clearance size, restitution coefficient Cited by: Experimental and theoretical investigations of silo music Article in Powder Technology (1) February with 57 Reads How we measure 'reads'.

Rotating machinery, waves on a ship hull, winds blowing on a turbine blade, gust wind Experimental and Numerical Investigations of the Gaussian Suppression of Sound by Sound book an airplane wing, and trucks driving on a bridge deck all have one thing in common: the cyclic load acting on the ed to static dead-loads, cyclic or dynamic loads are of a random stochastic nature with varying mean, amplitude and duration as time evolves.

ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference Experimental and Numerical Investigations of an Untethered, Nonlinear Spherical Buoy in a Wave Tank.

Zach Ballard, Topics: Bifurcation, Noise (Sound), Attractors, Explosions, Explosives. Journal of Sound and Vibration, 98,(Letter). Langley, R.S. On the conditional distribution of velocity and displacement for a stationary Gaussian process.

Engineering Structures, 7,Langley, R.S. A finite element method for the statistics of non-linear random vibration. Journal of Sound and Vibration, where ρ is density (kg/m 3), c is specific heat capacity (J/kg/°C), T is temperature (°C), t is time (s), k is thermal conductivity (W/m/°C), ω is blood perfusion (kg/m 3 /s), Q is heat deposition due to ultrasound (W/m 3), and the subscript b refers to blood.

Capillary blood temperature is assumed to be 37°C. Dynamic changes in perfusion due to coagulation are incorporated into models Cited by: Sharma, A. K., Bhattacharya, B. (), Parameter estimation of butyl rubber aided with dynamic mechanical analysis for numerical modelling of an air-inflated torus and experimental validation using 3D-laser Doppler Vibrometer, Journal of Low Frequency Noise, Vibration and Active Control, DOI: / Zhang X, Yang C, Cheng L, Zhang P.

An experimental investigation on the acoustic properties of micro-perforated panels in a grazing flow[J].

Applied Acoustics, 9pp. Ma L, Cheng L. Numerical and experimental benchmark solutions on vibration and sound radiation of an Acoustic Black Hole plate[J]. Braasch, J. Goebel, J. and Vos T. (): A Cinematic Spatial Sound Display for Panorama Video Applications, Organised Sound, Organised Sound 15/03, Van Nort, D.

Oliveros and J. Braasch, J. (): Developing Systems for Improvisation based on Listening, to appear in Proc. of the International Computer Music Conference (ICMC /ot ot Other Titles in Applied Mathematics Society for Industrial and Applied Mathematics OT43 / Templates for the Solution of Linear Systems: Building Blocks for Iterative Methods Templates for the Solution of Linear Systems: Building Blocks for Iterative Methods Richard Barrett, Michael Berry, Tony F.

Chan, James Demmel, June Donato, Jack Dongarra, Victor. Publications by the Acoustics Group. Static list of publications registered in Cristin. Effects of sound exposure from a seismic airgun on heart rate, acceleration and depth use in free-swimming Atlantic cod and saithe Experimental and numerical study on the propagation of impulsive sound around buildings.

In the present study, experimental and numerical investigations were conducted to clarify the effect of microjet injection on supersonic jet noise. The experiments were focused on supersonic jet with Mach number up to that was generated from a rectangular nozzle with high aspect by: 2.

We present a new method for solving stochastic differential equations based on Galerkin projections and extensions of Wiener's polynomial chaos.

Specifically, we represent the stochastic processes Cited by: Motivated by the presence of deep connections among dynamical equations, experimental data, physical systems, and statistical modeling, we report on a series of findings uncovered by the authors and collaborators during the last decade within the framework of the so-called Information Geometric Approach to Chaos (IGAC).

The IGAC is a theoretical modeling scheme that combines methods of Cited by: 4. Numerical investigation of the repeatability and reproducibility in building acoustical measurements A. Dijckmans, G.

Vermeir, KU Leuven, Belgium: abstract full paper: Acoustic testing in a micro-space based on a point source generated by laser-induced breakdown N. Hosoya, M. Nagata, Shibaura Institute of Technology, Japan I. Kajiwara, Hokkaido University, Japan. Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control Yu Zhou, A.D.

Lucey, Yang Liu, Lixi Huang (eds.) These proceedings primarily focus on advances in the theory, experiments, and numerical simulations of turbulence in the contexts of flow-induced vibration and. Selected Publications. Disc surface modifications for enhanced performance against friction noise (Journal article - ) ; An indirect torsional vibration receptance measurement method for shaft structures (Journal article - ) ; Uncertainty Quantification of the Squeal Instability in Real Brake Systems (Conference Paper - ) ; Eigenstructure assignment in undamped vibrating systems: A.

Journal of Sound and Vibration, pp. ISSN X. Reynders, E and Legault, J and Langley, RS () An efficient probabilistic approach to vibro-acoustic analysis based on the Gaussian orthogonal ensemble. Journal of the Acoustical Society of America, pp. ISSN Sharma, A. K., Bhattachary a, B. (), Parameter estimation of butyl rubber aided with dynamic mechanical analysis for numerical modelling of an air-inflated torus and experimental validation using 3D-laser Doppler Vibrometer, Journal of Low Frequency Noise, Vibration and Active Control, DOI: / Energy density fluctuations of pulsed Laguerre-Gaussian beam superposition in a turbulent atmosphere.

Experimental and numerical study of temperature fields and flows in flame during the diffusion combustion of certain liquid fuels. Investigations of an acoustic field, generated by a.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF.

Visit to get more information about this book, to buy it in print, or to download it as a free PDF. Acoustics, Vol. 2, Pages Historical Acoustics: Relationships between People and Sound over Time A novel effective vibrational mode was discovered in the conventional transducer with an array of orthogonal (square) regular piezoelectric rods in piezocomposite, containing the damping backing and front matching layers.

The propagation of small perturbations in complex geometries can involve hydrodynamic-acoustic interactions, coupling acoustic waves and vortical modes. A propagation model, based on the linearized Navier–Stokes equations, is proposed.

It includes the mechanism responsible for the generation of vorticity associated with the hydrodynamic modes. The linearized Navier–Stokes equations are Cited by: 2. In many everyday situations, our senses are bombarded by many different unisensory signals at any given time.

To gain the most veridical, and least variable, estimate of environmental stimuli/properties, we need to combine the individual noisy unisensory perceptual estimates that refer to the same object, while keeping those estimates belonging to different objects or events by: [] "Numerical analyze and experimental results of ultrasonic waves scattering ona model.

of the artery", J.Wójcik, łowski, ński, Molecular and Quantum. Acoustics, Vol,pp [] "Comparison of experimental results and numerical calculations of ultrasonic waves.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Proc. SPIE25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, (18 December ); doi: /   Only in the s were their existence and properties founded on a sound mathematical basis (see [, ] and references therein).

In the same period, after the seminal work of Weber [ ], the scientific community was starting a growing experimental effort to directly detect by: and for the special case of a sinusoidal (pure-tone) sound wave pˆ 2 p 2 t = (13) I t = ρc 2ρc where pˆ is the sound pressure amplitude, and the 2 mean-square sound pressure is thus p 2 t = prms = 1 2 p ˆ.

2 We note, in general, for sound propagation in three dimensions that the instantaneous sound intensity I is a vector quantity equal. The paper deals with designing a control force to create nodal point(s) having zero displacements and/or zero slopes at selected locations in a harmonically excited vibrating structure.

It is shown that the steady-state vibrations at desired points can be eliminated using feedback control forces. These control forces are constructed from displacement and/or velocity measurements using sensors Author: Bassam A. Albassam. International Student Conference - Master's Division • Monday, 13 January • hrs.

A study on the influence of design parameters on the power output characteristic of piezoelectric vibration energy harvester N. Aboulfotoh, J.

Twiefel, University of Hanover, Germany: abstract full paper: Using the resonance behavior of finite pipes for defect detection based on the wave-scattering P. Becht, E. Deckers, C. Claeys, B. Pluymers, W. Desmet, KU Leuven – member of Flanders Make. Full text of "DTIC ADA Proceedings of the Conference on the Numerical Simulation of Plasmas (4th) Held at the Naval Research Laboratory, Washington, D.C.

on. an experimental study of localization and extraction of multiple disjoint sound sources: the harmonic separation method in the under-determined case Marmaroli, P.

/ Falourd, X. / Lissek, H. some preliminary experimental data obtained in the Soil-Structure and Soil-Machine Interaction Laboratory at Northwestern University, which utilizes a six-axis robot for actuation and data acquisition. [1] Kashizadeh, E., Hambleton, J.P., and Stanier, S.A.

A numerical approach for modelling the ploughing process in Size: 16MB. Experimental and numerical analysis of combat helmet ballistic performance Experimental determination of the plasma properties in the far-plume of an SPT Hall thruster Experimental performances of a 1 kW HPT by means of plasma diagnosis.

Hebden Bridge, Yorkshire: Integrated Sound Software. vii# pp. ISBN This book contains both mathematical theory and a number of Fortran subroutines for the practitioner wishing to use the boundary element method for acoustic radiation and scattering problems.

The APS Fellow Archive is a historical record of APS Fellows, from to the present. Please note, some records are missing or incomplete.

The details contained in the archive are intended to document an individual's institutional affiliation at the time of their election to Fellowship, and is not updated to reflect current information. The numerical results showed the critical frequency should satisfy such a rule that kc sinθ = const (kc = 2π Fc/C, Fc is the critical frequency, θ is the elevation angle of the observation point and c is the sound speed), and the applicability of this rule was validated by the numerical simulations and the experiment.

This book gathers timely contributions on metrology and measurement systems, across different disciplines and field of applications. The chapters, which were presented at the 6th International Scientific-Technical Conference, MANUFACTURINGheld on May, in Poznan, Poland, cover cutting-edge topics in surface metrology, biology, chemistry, civil engineering, food science.The basis of the approach consists in dealing with such problems without resorting to any regularization process.

Indeed, the nonsmoothness is due to simplified mechanical modeling; a more sophisticated model would require too large a number of variables, and sometimes the mechanical information is not available via experimental investigations.

Interest in the dynamics of a gas bubble near a solid boundary originates from investigations on cavitation phenomena, especially from those on the problem of cavitation damage.

The literature on these investigations is very extensive. A great deal of work has been done in the experimental and numerical by:

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