Background,Motivation and Objective Porous formation is one of the most common formation in geophysical and engineering geophysical exploration,and one of the most important objects of oil and gas resources ***,gettin...
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Background,Motivation and Objective Porous formation is one of the most common formation in geophysical and engineering geophysical exploration,and one of the most important objects of oil and gas resources ***,getting accurate the
Background,Motivation and Objective The applications of high frequency sonar have increased in the last few decades,such as seafloor imagery and physical property *** the frequency increases the detection resolution i...
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Background,Motivation and Objective The applications of high frequency sonar have increased in the last few decades,such as seafloor imagery and physical property *** the frequency increases the detection resolution improves,on the other hand,
Background,Motivation and Objective In order to realize low shape factor and high sideband rejection of surface acoustic wave(SAW)filter,huge number of interdigital transducers(IDTs)and apodization weighted function a...
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Background,Motivation and Objective In order to realize low shape factor and high sideband rejection of surface acoustic wave(SAW)filter,huge number of interdigital transducers(IDTs)and apodization weighted function are used *** fingers usually are used
Background,Motivation and Objective In the well logging industry,it is desirable to measure formation shear velocity because it provides information important for the exploration and production of oil and *** a monopo...
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Background,Motivation and Objective In the well logging industry,it is desirable to measure formation shear velocity because it provides information important for the exploration and production of oil and *** a monopole acoustic tool,the shear velocity can
＜正＞Background,Motivation and Objective The band structure calculation is an important aspect of the theoretical studies of the phononic crystals（Pn Cs）,*** kind of composite material with the periodic spatial var...
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＜正＞Background,Motivation and Objective The band structure calculation is an important aspect of the theoretical studies of the phononic crystals（Pn Cs）,*** kind of composite material with the periodic spatial variation of the elastic constants and the mass density..The
Background,Motivation and Objective Piezoelectric materials have found many applications in the area of signal processing,transduction,and frequency control,where transmission and reflection of wave energy at boundary...
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Background,Motivation and Objective Piezoelectric materials have found many applications in the area of signal processing,transduction,and frequency control,where transmission and reflection of wave energy at boundary surfaces plays an important ***
Background,Motivation and Objective The existence and propagation of cracks in solid materials are fatal for mechanical *** to the prior researches,critical stress is related the length of crack and the range of plast...
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Background,Motivation and Objective The existence and propagation of cracks in solid materials are fatal for mechanical *** to the prior researches,critical stress is related the length of crack and the range of plastic zone at the crack ***
Background,Motivation and Objective In recent years,there are problems of"shooting long range"whereas"where to shoot"for submarine-launched missiles in the deep sea,due to advances in vibration and...
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Background,Motivation and Objective In recent years,there are problems of"shooting long range"whereas"where to shoot"for submarine-launched missiles in the deep sea,due to advances in vibration and noise reduction of submarines,as well as the incensement
Background,Motivation and Objective The focusing of acoustic waves in inhomogeneous media is a common and difficult problem to *** focusing can be strongly degraded by sound speed variation and geometrical distortion ...
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Background,Motivation and Objective The focusing of acoustic waves in inhomogeneous media is a common and difficult problem to *** focusing can be strongly degraded by sound speed variation and geometrical distortion of the array *** the
Background,Motivation and Objective The piezoelectric thin film bulk acoustic resonators(FBARs)are new devices for frequency control device,oscillator *** devices exhibit several prominent advantages such as small siz...
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Background,Motivation and Objective The piezoelectric thin film bulk acoustic resonators(FBARs)are new devices for frequency control device,oscillator *** devices exhibit several prominent advantages such as small size,high quality factor,high
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