Wing-in-Ground Effect vehicle (WIG-craft) or ekranoplane landing direction optimization criteria is suggested which heeds the irregular sea waves features and provides the minimal mechanical strain on the vehicle body at hydrodynamic braking. The problem of automatic choice of the landing trajectory direction regarding the main direction of sea waves spread is under consideration. The peculiari...

Acoustic waves are mechanical waves recently used to activate tissue metabolism by exploiting the cell permeabilization caused by their passage. We report a case of a retroauricular lipoma in a 44-year-old woman affected by multiple symmetric lipomatosis and treated with extracorporeal acoustic wave therapy. The adipose thickness of the lipoma was reduced from 35.8 to 21 mm, with increased soft...

The drift velocities of spiral waves driven by a periodic mechanic deformation or a constant or periodic electric field are obtained under the weak deformation approximation around the spiral wave tip. An approximate formula is derived for these drift velocities and some significant results, such as the drift of spiral waves induced by a mechanical deformation with v53v0 , are predicted. Numeri...

We present an experimentally realizable, simple mechanical system with linear interactions whose geometric nature leads to nontrivial, nonlinear dynamical equations. The equations of motion are derived and their ground state structures are analyzed. Selective "static" features of the model are examined in the context of nonlinear waves including rotobreathers and kinklike solitary waves. We als...

In the ear, sound waves are processed by a membrane of graded mechanical properties that resides in the fluid-filled spiral cochlea. The role of stiffness grading as a Fourier analyzer is well known, but the role of the curvature has remained elusive. Here, we report that increasing curvature redistributes wave energy density towards the cochlea's outer wall, affecting the shape of waves propag...

In this paper we study the structure of the manifold of solitary waves in some deformations of SO(2) symmetric two-component scalar field theoretical models in two-dimensional Minkowski space. The deformation is chosen in order to make the analogous mechanical system Hamilton-Jacobi separable in polar coordinates and displays a singularity at the origin of the internal plane. The existence of t...

Waves in Random and Complex Media Publication details, including instructions for authors and subscription information: http://www-intra.informaworld.com/smpp/title~content=t716100762 Waves and fracture in an inhomogeneous lattice structure G. S. Mishuris a; A. B. Movchan b; L. I. Slepyan c a Department of Mathematics, Rzeszów University of Technology, Poland b Department of Mathematical Scienc...

A 52-year-old man had longstanding hypertension and asymemtric septal hypertrophy and normal major coronary arteries. His acute anterior wall ischemia gave rise to transient Q waves and septoapical dyskinesia, complicated by mural thrombus formation. Follow-up revealed a gradual and complete recovery of echocardiographic left ventricular function with total disappearance of mural thrombi and of...

Sound waves are mechanical waves and the behaviours of fixtures inside rooms are governed by rules in physics. These fixtures are classified into three groups: reflectors, diffusers and absorbers, and the physical properties are investigated. The important parameters in determining acoustic quality of rooms are introduced. On the other hand, it is shown that limitations exist on applying these ...

V. Khozikov, P. J. Rossman, R. L. Ehman Radiology, Mayo Clinic and Foundation, Rochester, MN, United States Introduction. Dynamic magnetic resonance elastography (MRE) is a method for quantitatively imaging the mechanical properties of tissue, using modified phasecontrast MRI to visualize applied shear waves [1]. There is interest in exploring possible applications of MRE in the diagnosis of br...