Furthermore, an implementation of the inverse-problem approach will be presented and it will be shown how harmonic maps of the local shear modulus and viscosity can be reconstructed based on both the fundamental and higher-harmonic components of the propagated narrowband shear waves. and the University of Chicago Materials Research Science and Engineering. The advantages of using narrowband shear waves to estimate the viscoelastic properties of tissue will be discussed. Equation 2 summarizes the usual meaning of elasticity and viscosity: Elasticity. Of interest are the low-frequency narrowband shear waves that can be generated by a modulated radiation force produced by the interference of two continuous-wave (CW) ultrasound beams of slightly different frequencies. These consist of amount ingested (or bite size in the case of a solid food), mouthfeel, flavour perception and, finally, satiety. The basic principles of the static and dynamic methods will be described with special emphasis on the dynamic methods that rely on the acoustic radiation force of ultrasound. Viscosity influences sensory perception in many ways, and in this chapter we will consider them in the order in which the consumer will experience them during eating. In this chapter, an overview of elastography and its relation to tissue pathology will be presented. 1 : the quality or state of being viscous : a sticky or glutinous consistency 2 a technical : the property of resistance to flow in any material with fluid properties water has a small but measurable viscosity, or 'stickiness,' which results from the weak mutual attraction of water molecules. “Elastography” or “elasticity imaging” can be defined as the science and methodology of estimating the mechanical properties of a medium (including soft tissue).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |