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two-dimensional array transducers

Flexible Two-dimensional Ultrasonic Transducer Array: Design, Fabrication and Characterization.

Flexible Two-dimensional Ultrasonic Transducer Array: Design, Fabrication and Characterization.

... of two-dimensional ultra- sound transducers has enabled the generation of real time volumetric ...rigid transducers do not work efficiently on such curved ...flexible ...

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Two dimensional flexural ultrasonic phased array for flow measurement

Two dimensional flexural ultrasonic phased array for flow measurement

... of two ultrasonic paths with the increase of flow rates are shown in figure 8, where Tx1 indicates that channel 1 is operating in the transmitting mode and Rx 27 denotes that channel 27 is operating in the ...

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Flow velocity measurement using a spatial averaging method with two dimensional flexural ultrasonic array technology

Flow velocity measurement using a spatial averaging method with two-dimensional flexural ultrasonic array technology

... the array transducer, the quantity and the positioning of array elements, and the distance between the array transducer and the single transducer, can all be optimized for different flow measurement ...

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AN EFFICIENT ALGORITHM FOR VARIANT BULK TRANSPORTATION PROBLEM

AN EFFICIENT ALGORITHM FOR VARIANT BULK TRANSPORTATION PROBLEM

... the two-dimensional cost array into a linear and the problem can be reduced to a linear form of finding an optimal word of length n (Sundara Murthy, 1979) and hence reduces computational work in ...

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Dual Encryption by Random Segmentation and          Random Re-Arrangement (RSRA) using 
          Two Dimensional Array

Dual Encryption by Random Segmentation and Random Re-Arrangement (RSRA) using Two Dimensional Array

... using two dimensional array before transmission over communication channel so that the transmitted cipher text is more complex to decrypt by any ...

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Generation of Two Dimensional Grammar Based Pattern Languages using Array Rewriting P System

Generation of Two Dimensional Grammar Based Pattern Languages using Array Rewriting P System

... Abstract—The theory of membrane computing was formulated by Paun as an attempt to formulate a computational model inspired by the way in which the living cells function. P systems which is a highly distributed, parallel, ...

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A new spectrometer using multiple gratings with a two dimensional charge coupled diode array detector

A new spectrometer using multiple gratings with a two dimensional charge coupled diode array detector

... a two-dimensional Si-based CCD array detector was ...s. Two high-pass filters with wavelength-cut edges at 300 and 580 nm were placed in front of the two subgratings 共 600 and 300 g/mm, ...

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Two-Dimensional Angles Estimation Method and its Improved Methods for Single Source with a Sparse Array

Two-Dimensional Angles Estimation Method and its Improved Methods for Single Source with a Sparse Array

... on two orthogonal linear sparse arrays (LSA) which consist of the coupled-sensors (CSs), a high resolution and no ambiguity (HRNA) method is proposed to estimate the two-dimensional (2D) angles of ...

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Virtual source aperture imaging for non-destructive testing

Virtual source aperture imaging for non-destructive testing

... phased array ultrasonics in that a focal point may be defined within the material (below the array) to generate a beam that converges at the point of ...

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A Logical Characterization of Extended TAGs

A Logical Characterization of Extended TAGs

... the two restricted rule formats or their corresponding tree transducers, finite- copying top-down tree transducers and simple macro/attributed tree transducers, respectively, can be given an ...

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A Unified Neural Coherence Model

A Unified Neural Coherence Model

... For comparison purposes with previous work, we evaluate our models on the standard “global” dis- crimination task (Barzilay and Lapata, 2008), where a document is compared to a random per- mutation of its sentences, ...

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CMSC 427 Computer Graphics 1

CMSC 427 Computer Graphics 1

... Let us begin by considering the process of drawing (or rendering) a single image of a 3-dimensional scene. This is crudely illustrated in the figure below. The process begins by producing a mathematical model of ...

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Directivity Investigation of two Annular Phased Array Transducers

Directivity Investigation of two Annular Phased Array Transducers

... Figure 4 shows the beam profile of element 1 of the 2.5MHz probe. This element is a circular disk and it seems to have a significant beam spread. Indeed, the reflection from the ball bearing is quite spread out in the ...

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Fabrication and Electrocatalytic Performance of a Two- Dimensional β-PbO2 Macroporous Array for Methyl Orange Degradation

Fabrication and Electrocatalytic Performance of a Two- Dimensional β-PbO2 Macroporous Array for Methyl Orange Degradation

... microscopy (SEM) and X-ray diffraction (XRD). The anode polarization curves, cyclic voltammetry (CV) curves and electrochemical impedance spectroscopy (EIS) measurements were investigated to compare the electrocatalytic ...

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Frequency and 2D Angle Estimation Based on a Sparse Uniform Array of Electromagnetic Vector Sensors

Frequency and 2D Angle Estimation Based on a Sparse Uniform Array of Electromagnetic Vector Sensors

... sensor array have been identi- fied and many array data processing techniques for source localization and polarization estimation using vector sen- sors have been ...arbitrary array with small loops ...

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Pressure fields in the vicinity of brass musical instrument bells measured using a two dimensional grid array and comparison with multimodal models

Pressure fields in the vicinity of brass musical instrument bells measured using a two dimensional grid array and comparison with multimodal models

... a two dimensional grid array and comparison with multimodal models” was submitted to and was presented at the 24th International Congress on Sound and Vibration (ICSV24) held in London, UK, from 23 ...

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Slow viscous flow through regular arrays of cylinders and spheres

Slow viscous flow through regular arrays of cylinders and spheres

... Hasimoto 1959 used Fourier series to find solutions of the Stokes equations of motion for the two-dimensional flow past a square array of circular cylinders, and calculated the drag, F, [r] ...

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Picture Array Generation Based on Membrane Systems and 2D Context-Free Grammars

Picture Array Generation Based on Membrane Systems and 2D Context-Free Grammars

... In two-dimensional (2D) language theory, extended 2D context free picture grammar (E2DCFPG) constitutes a theoretical model of picture array generation making use of nonterminal symbols and groups of ...

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Magnetic Properties of Antiferromagnetic Coupled Co Pt Stacked Films with Two Dimensional Array Structures

Magnetic Properties of Antiferromagnetic Coupled Co Pt Stacked Films with Two Dimensional Array Structures

... hole array processing appears to have little effect on the antiferromagnetic ...hole array processing, the step-shaped magnetization curve changes, suggesting steep magnetic reversal with increasing ...

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Implementation of Collectives for Scalable Programming in Java

Implementation of Collectives for Scalable Programming in Java

... and two experimental HPF translators used the library to manage their communications [4] ...distributed array, and a library of communication and arithmetic operations acting on these ...The array ...

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