This paper considers the scattering of an in nite plane acoustic wave from a long immersed, solid, transversely isotropic cylinder. The mathematical model which has already been developed for this problem does not work in the case of a normally incident wave. Modi cations to the mathematical model are proposed in order to make it applicable to all incidence angles, including = 0. Numerical resu...

We extend the differential theory to anisotropic cylindrical structures with an arbitrary cross section. Two cases have to be distinguished. When the anisotropic cylinders do not contain the origin, the scattering matrix of the device is calculated from the extended differential theory with the help of the scattering matrix propagation algorithm. The fields outside the cylinders are described b...

In this paper, the results of modeling and simulation a microcolumn are presented. The is part developed miniature MEMS electron microscope equipped with high-vacuum micropump. Such an arrangement makes device first stand-alone electron-optical to operate without external chamber. Before such can be fabricated, research on particular elements must carried out determine working principles device...

An experimental channel intended for investigation of a wake behind cooled cylinder was designed and constructed in this work. The setup is measurements with air at low Reynolds numbers. measuring techniques based on the standard visualization fog generator constant temperature anemometry (CTA) were used. flow performance investigated two cylinders placed inside square cross section. One kept t...

A finite different scheme as well as least-square method is presented for the magneto-thermo analysis of an infinite functionally graded hollow cylinder. The radial displacement, mechanical stresses and temperature as well as the electromagnetic stress are investigated along the radial direction of the cylinder. Material properties are assumed to be graded in the radial direction according to a...