matching layer
Generation of ultrasound pulses in water using granular chains with a finite matching layer
... finite matching layer to the system, generation of wideband ultrasound waves in water cannot be maximized by reducing the precompression ...the matching layer properties or an ...
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Omnidirectional acoustic absorber with a porous core and a metamaterial matching layer
... impedance matching layer, where the im- pedance matching and the desired wave speed profile are achieved by varying the filling fraction of small scatterers (with radius much smaller than the ...
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Generation of Ultrasound Pulses in Water Using Granular Chains with a Finite Matching Layer
... a matching layer is ...carbon matching layer. The matching layer and the precompression force are selected specifically to maximize the acoustic pressure in water and its ...a ...
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A theoretical analysis of a piezoelectric ultrasound device with an active matching layer
... piezoelectric layer sandwiched between a backing material and an active matching layer has been theoretically modelled and ...active matching layer can be used to maintain the ...
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Viscosity Measurement in a Lubricant Film Using an Ultrasonically Resonating Matching Layer
... the matching layer method allows good coupling between a metal and a liquid, it has the potential to be further developed for in‐situ applications in engine ...
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Comparison of matching layers for automotive radome design
... one layer of substrate and several layers of paint, there exists different options for ...This matching has only one de- gree of freedom - the decreased thickness of the substrate ...additional ...
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Flexible Two-dimensional Ultrasonic Transducer Array: Design, Fabrication and Characterization.
... backing layer is to absorb energy transmitted to the back side and thus prevent unnecessary reflections from the back ...backing layer is usually a dosed epoxy or polymer with a high attenuation coefficient ...
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A Design of Broadband and Low-Loss Multilayer Antireflection Coating in THz Region
... 1.199 THz to 2.518 THz (70.97% fractional bandwidth), showing nearly triple bandwidth compared to the case employed single-layer AR coating [11]. On the parallel front, sub-wavelength relief structures implemented ...
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Original Semantics Oriented Attention and Deep Fusion Network for Sentence Matching
... components: (1) original semantics-oriented cross sentence attention; (2) deep fusion; and (3) self- attention mechanism. The cross sentence attention is oriented to the original semantic representations of another ...
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Semi automatic engineering and tailoring of high efficiency Bragg reflection waveguide samples for quantum photonic applications
... Three candidates in table 1 were accepted for further investigation, while only sample 2M-1 was fabricated. There are two main reasons for selecting this design: First, 2D simulations set the phasematching wavelength to ...
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Application Of Converted Mode For Defect Defection In Plate
... LIST OF TABLES NO TITLE PAGE 2.1 Velocity Ultrasonic on Material 18 3.1 Matching Layer Testing with Different Shoes 39 4.1 S0 mode on 2mm Defect using Acrylic Shoes.. 72 4.13 Total time [r] ...
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Electromagnetic Waves Absorbing Characteristics of Composite Material Containing Carbonyl Iron Particles
... Figure 7(a) shows the measured values for sample 1. It can be seen that the reflection coefficient does not exceed 20%, and the transmission and absorption coefficients are close in values (about 40%). The correspond- ...
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Comparative Study of SA string Matching Algorithm with other Familiar String Matching Algorithm
... (1) Text-editing programs frequently need to find alloccurrences of a pattern in the text . Typically , the text is a document being edited , and the pattern searched for is a particular word supplied by the user. ...
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Matching ERS scatterometer based soil moisture patterns with simulations of a conceptual dual layer hydrologic model over Austria
... Low frequency microwaves (1–10 GHz) are highly sensi- tive to the water content in the soil surface layer, although the surface roughness and vegetation also play an important role in backscattering from the ...
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Matching with Contracts
... pairs of hospitals (and being unemployed). Each hospital has one position. Matching with couples can be seen as a special instance of matching with contracts as follows. Each couple can sign at most two ...
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Reconstructive Subspace Based Multimodal Biometric For Accurate Person Authentication
... Fusion in multimodal biometric system can be done in two ways [7]: 1 Fusion prior matching 2 Fusion after matching 3 Fusion prior matching: Fusion prior matching is done at two levels: 4[r] ...
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Matching facial sketches using ann
... Figure 3 shows the functional flow of the0proposed methodology. The computer generated composite0sketches are given as the input images for further processing. The proposed face identification scheme consists of two ...
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Matching rate improvement on pako
... It is necessary that for any vehicle to give better performance with an average speed; nozzle should work with better efficiency. For it pairing of nozzle body and needle should be done accurately; it should be done ...
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Direct linking of Greenland and Antarctic ice cores at the Toba eruption (74 ka BP)
... A number of different approaches have been taken to synchronize ice cores from the two hemispheres. Bender et al. (1994) used the global signal of oxygen isotopes of air trapped in the Greenland GISP2 and the Antarctic ...
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The Personality matching of mentors and mentees in a youth mentoring program
... in matching mentors and ...personality matching using personality tests was not even a consideration for project ...ineffective matching tool (Cox, ...
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