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In acoustics, the acoustic contrast factor is a number that describes the relationship between the densities and the sound velocities of two media, or equivalently (because of the form of the expression), the relationship between the densities and compressibilities of two media. It is most often used in the context of biomedical ultrasonic imaging techniques using acoustic contrast agents and in the field of ultrasonic manipulation of particles (acoustophoresis) much smaller than the wavelength using ultrasonic standing waves. In the latter context, the acoustic contrast factor is the number which, depending on its sign, tells whether a given type of particle in a given medium will be attracted to the pressure nodes or anti-nodes.
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In acoustics, the acousticcontrastfactor is a number that describes the relationship between the densities and the sound velocities of two media, or...
\over 4\rho _{f}c_{f}^{2}}} where Φ {\displaystyle \Phi } is the acousticcontrastfactor κ ~ {\displaystyle {\tilde {\kappa }}} is relative compressibility...
synthesize acoustic wavefields up to GHz frequency. Acoustic levitation Acousticcontrastfactor Ozcelik, A., Rufo, J., Guo, F. et al. Acoustic tweezers...
In physics and engineering, the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. It...
A vestibular schwannoma (VS), also called acoustic neuroma, is a benign tumor that develops on the vestibulocochlear nerve that passes from the inner ear...
sound baffles for absorption, or using active antinoise sound generators. Acoustic quieting and noise control can be used to limit unwanted noise. Soundproofing...
most cases, the cause of acoustic neuromas is unknown. The only statistically significant risk factor for developing an acoustic neuroma is having a rare...
A specific branch of contrast-enhanced ultrasound, acoustic angiography is a minimally invasive and non-ionizing medical imaging technique used to visualize...
itself becomes the dominant factor and the size of the enclosure and ports (if any) become irrelevant. In general, acoustic suspension systems (driver...
An acoustic metamaterial, sonic crystal, or phononic crystal is a material designed to control, direct, and manipulate sound waves or phonons in gases...
solid bodies produce little sound without amplification. In contrast to a standard acoustic guitar, electric guitars instead rely on electromagnetic pickups...
Tranquart F (2012). "Effects of Acoustic Radiation Force on the Binding Efficiency of BR55, a VEGFR2-Specific Ultrasound Contrast Agent". Ultrasound in Medicine...
square acoustic pressure. Sometimes the term "sound velocity" is used but this is incorrect as the quantity is a scalar. The large impedance contrast between...
targeting MR contrast agents has been introduced to show gene action of unique mRNA and gene transcription factor proteins. These new contrast agents can...
enable use of Acoustic SLAM, so that DoA features are properly estimated. Acoustic SLAM has paved foundations for further studies in acoustic scene mapping...
Solids with more than one atom in the smallest unit cell exhibit both acoustic and optical phonons. A phonon is the quantum mechanical description of...
position within a syllable. One important factor that causes variation is differing speech rate. Many phonemic contrasts are constituted by temporal characteristics...
discrimination between the contrasting phonemes of the language that has the pair, but that age and especially input are major factors in determining ability...
United States the contrastive difference between dental and alveolar stops is a slight retroflexion of the alveolar stop. Acoustically, retroflexion tends...
ceiling tiles can be done at relatively low cost compared with the past. Acoustic balance and control was another early objective of dropped ceilings. A...
one variant of X-ray imaging, making use of diffraction contrast rather than absorption contrast which is usually used in radiography and computed tomography...
expressed by the mechanical index. Medical portal Acoustic droplet ejection Acoustic emission Bat detector Contrast-enhanced ultrasound Delay-line memory Focused...
electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which...
post-construction acoustic treatment is limited by the amount of space able to be allocated to acoustic treatment, and so on-site acoustical wall panels are...
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