Acoustic Wave Propagation in Standing Trees - Part II. Effects of Tree Diamter and Juvenile Wood

Acoustic-Based Non-Destructive Estimation of Wood Quality Attributes within Standing Red Pine Trees

The relationship between acoustic velocity (vd) and the dynamic modulus of elasticity (me), wood density (wd), microfibril angle, tracheid wall thickness (wt,), radial and tangential diameters, fibre coarseness (co) and specific surface area (sa), within standing red pine (Pinus resinosa Ait.) trees, was investigated. The data acquisition phase involved 3 basic steps: (1) random selection of 54...

Numerical Simulation of the Acoustic Waves Propagation in a Standing Wave Tube

Complex Resistivity (CR) of Wood and Standing Trees

Complex resistivity (CR) has been used to investigate the properties and the extent of damage in wood and standing trees. Our laboratory experiments have proved that wood’s anisotropy influences its electrical behaviour. It is a well-established fact that wood exhibits the lowest resistivity amplitudes in the axial direction compared to that in tangential and radial directions. It has been show...

Viscothermal Wave Propagation including Acousto-elastic Interaction, Part Ii: Applications

In Part I of the present paper a parameter analysis showed that the most e$cient model to describe viscothermal wave propagation is the low reduced frequency model. In order to demonstrate the wide range of applicability of the low reduced frequency model, a number of examples from the literature are discussed in Part II. An overview of fundamental solutions and general applications is given. B...

Standing Surface Acoustic Wave Based Cell Coculture

Precise reconstruction of heterotypic cell-cell interactions in vitro requires the coculture of different cell types in a highly controlled manner. In this article, we report a standing surface acoustic wave (SSAW)-based cell coculture platform. In our approach, different types of cells are patterned sequentially in the SSAW field to form an organized cell coculture. To validate our platform, w...