The earth dynamic system is one of the key scientific questions on the earth science. The thermodynamic behavior and gravity force of the earth and the rheology nature of the mantle prove that mantle convection is the main power source leading the lithosphere to break and move. Yet the directivity of both the structures in the crust and plate movement reminds of the earth rotation. Here we demo...

The elastic instability of a circular plate adhering to an elastic foundation modeling the exposed surface of a biological cell resting on the cell interior is considered. Plate buckling occurs under the action of a uniform body force due to an overpassing simple shear flow distributed over the plate cross section. The problem is formulated in terms of the linear von Kármán plate bending equati...

  Background :Rupture of the Anterior Cruciate Ligment (ACL) is a common knee injury. The purpose of this study was to determine the balance control in football players with and without ACL reconstruction in posture of injury.   Methods : Sway of the center of gravity of 15 patients with ACL reconstruction was compared with 15 healthy, age and sex-matched subjects as the control group. All test...

This technical note summarizes the development of a software solution aimed at data acquisition and analyses and results reporting on the tests performed on a force plate. In the introduction, the history of force plate development is reviewed, followed by a description of the process of ground reaction force measurement data acquisition and parameterization. The second part is a short descript...

OBJECTIVE To compare the variability of symmetry indices within and between days when using one and two force plates for data collection. ANIMALS Seventeen healthy client-owned adult dogs. METHODS Vertical ground reaction force data were collected in a crossover study design, with four collection sessions on two consecutive days, and then two weeks apart (days 1, 2, 15, and 16) using both 1...

We provide a derivation of the percolation threshold for a two-dimensional triangular lattice. We then proceed to model an ensemble of skewed square lattices with randomly punched out squares, which is topologically equivalent to triangular lattice percolation. We investigate the behavior of the magnitude of the Casimir force between the percolating plate and the solid plate. We find evidence w...

A 15-cantilever-type force-sensor unit is presented for the measurement of palatolingual contact stress and pattern during palatal consonant phonation. The force sensor unit is composed of a strain gauge and a cantilever, and is embedded in a thin palatal plate attached to the human hard palate. It is 3 mm wide, by 5 mm long, and 1.3 mm thick. The output of the force sensor unit at the low stre...

We increased the accuracy of an instrumented treadmill's measurement of center of pressure and force data by calibrating in situ and optimizing the transformation between the motion capture and treadmill force plate coordinate systems. We calibrated the device in situ by applying known vertical and shear loads at known locations across the tread surface and calculating a 6 x 6 calibration matri...