In this paper we consider a coupled system of pdes modeling the interaction between two-dimensional incompressible viscous fluid and one-dimensional elastic beam located on upper part domain boundary. We design functional framework to define weak solutions in case contact bottom cavity. then prove that such exist globally time regardless possible by approximating equation damped letting additio...

This dissertation focuses on the implementation of integrating pulse transmitter with wide-band antenna array into a chip by CMOS process for beam-forming in millimeter-wave (mm-wave) active imaging applications. Integrated antenna arrays in this research electrically control and steer radiated-pulse beams towards objects to be imaged. Among imaging approaches, active imaging method provides mo...

Each of the four fractional betatron tunes of RHIC (two planes, two rings) is measured with a transverse beam kicker and dedicated beam position monitor (BPM). A 15kV pulse is generated by a fast FET switch, passed through a stripline kicker, attenuated, and returned to the instrumentation control room (ICR) for monitoring. When pulsed at 3kV, the four-meter long kicker gives a gold beam at inj...

Abstract The damped wave equation with the attenuation proportional to velocity is ubiquitous in science and engineering a common situation when depends on frequency. usual way incorporate this effect introduce fractional order derivatives either as replacement for u t or modifier through spatial component space derivatives. Models these are very well developed effort paper towards analysis of ...

Indications for use of the Er:YAG laser are continuously expanding. In this paper, the latest Pixel Screen Technology (PST) fractional technique for minimally invasive Er:YAG skin rejuvenation is presented. The fractional technique is based on a concept of producing an array of microscopic wounds on the skin surface that are rapidly reepithelialized by the surrounding, undamaged tissue, thus sp...

This dissertation reports a systematic study on analysis and identification of multiple parameter damped mechanical systems. The attention is focused on viscously and non-viscously damped multiple degree-offreedom linear vibrating systems. The non-viscous damping model is such that the damping forces depend on the past history of motion via convolution integrals over some kernel functions. The ...

A theoretical model is presented and experimentally validated that allows the prediction of the effect of speckles on the depth sensitivity of laser Doppler perfusion imaging. It is shown that the influence of speckles on depth sensitivity is large. In particular the sensitivity to particle motion in superficial layers is strongly beam diameter dependent: decreasing the beam diameter on the tis...

In this paper, dynamic behavior of a functionally graded cantilever micro-beam and its pull-in instability, subjected to simultaneous effects of a thermal moment and nonlinear electrostatic pressure, has been studied. It has been assumed that the top surface is made of pure metal and the bottom surface from a metal–ceramic mixture. The ceramic constituent percent of the bottom surface ranges fr...

Introduction Ion therapy allows a high precision, tumor conformal dose application but it is very sensitive to density changes along the beam path. Intra-fractional tumor motion due to respiration increases the risk of an incorrect irradiation and thus requires a reliable dosimetry as it was done by means of 3D in-beam PET for more than 400 patients at the experimental heavy ion treatment facil...