Sonoelastography is a vibration Doppler technique for imaging the relative elasticity of tissues. Detectability of hard lesions of various sizes has previously been demonstrated in tissue phantoms by our group. Because real tissue differs from phantom material, the injection of formaldehyde in fresh liver tissue is being used as an in-vitro lesion model. Pieces of fresh calf liver were embedded...

It generally is known that vibration of various muscles in free-standing subjects evokes a spatially oriented postural response. Furthermore, it recently has been shown that when a vibratory stimulus is terminated, a powerful involuntary contraction of the previously vibrated muscle often occurs that, under the isotonic condition, is accompanied by movement of a limb. The aim of this study was ...

The trend toward higher speed, higher power density liquid turbomachinery has inevitably increased the potential for fluid/structure interaction problems, and the severity of those problems. Fluid structure interaction phenomena can lead to increased wear and to structure failure. There are many factors affecting hydraulic and dynamic performance of pumping plants. These factors contribute to d...

The paper presents a mathematical model for an industry inspired problem of vibration isolation applied to a cluster of elastic fluid-filled containers. We develop a systematic approach employing full fluid-solid interaction and Floquet-Bloch waves in periodic multi-scale systems. The analytical findings are accompanied by numerical simulations, including frequency response analyses and computa...

9 Taylor W, Pelmear PL. Sclerodermna and its relation to Raynaud's phenomenon ofoccupational origin. Ontario: Ministry of Labour, Occupational Health and Safety Division, Toronto, Canada, 1985. (Occupational Health in Ontario 1985;6:No 2.) 10 Pyykko 1. Health effects and evaluation of the hand-arm vibration. Proceedings of the 4th international symposium on hand-arm vibration. Finland: Institut...

background: drivers of heavy motor vehicles are occupationally exposed to intense whole body vibration (wbv) for several hours per day over their working lifetime. therefore, they are at risk of wbv-induced occupational disorders. this study aimed to investigate health effects of long-term exposure to whole body vibration among a group of heavy vehicle drivers in fars province, southwestern ira...

This paper presents systematic comparisons of experiments against fluid structure interaction (FSI) simulations for flat water plate entry. Special focus is attributed on hydroelasticity and air trapping effects, quantification the experimental numerical uncertainties validity modelling assumptions prediction bottom slamming induced loads. Consequently, American society Mechanical Engineers sta...

Computational fluid dynamics modelling of internal two-phase flow induced transient forces at 90° elbows have been carried out to evaluate the effect pipe diameter on characteristics multiphase vibration. Simulations flows slug, cap bubbly and churn vibration a elbow were using volume model for k – ε turbulence. Modal analysis has risk resonance. Results compared across three geometrically simi...