We observed, and believe it to be the first time, the self-formation of periodic, supramolecular ~micrometer scale! pillar arrays in a thin, single-homopolymer film melt, which was originally flat on a plate. The self-formation was induced by placing a second plate ~called a mask! a distance above the polymer film. The pillars, formed by rising against the gravitational force and surface tensio...

The aim of this paper is to present proper finite element (FE) models which can predict the dynamic characteristics and behaviour of a railway bridge under dynamic train loading for the purposes of fatigue design and assessment. As a case study, an existing six-span continuous welded plate girder railway bridge in Stockholm is investigated. A number of detailed three-dimensional FE models of th...

The clinical case of figure 1 through figure 11 shows a series of impressive failures of plate fixation. The plates were repeatedly applied bridging a comminuted bone segment in a heavy patient. The biomechanical analysis elaborates why this happened and proposes an unconventional procedure to prevent this failure with a minimally invasive procedure. A plate bridging an open gap or a defect in ...

The instrument to be described was developed for the measurement of bioelectric potentials, especially those found on the skin. As such it was desired that it be portable, not dependent on the availability of electric current, and that, because of its biological applications, the input resistance be at least 10 megohms and that grid current through this resistance be less than 1 0-10 amperes wi...

The paper is concerned with equilibrium problems for two elastic plates connected by a crossing bridge. It assumed that an inequality-type condition imposed, providing mutual non-penetration between the and existence of solutions proved, passages to limits are justified as rigidity parameter bridge tends infinity zero. Limit models analyzed. inverse problem investigated when both displacement f...

Based on the high-pile and high-pier bridge of Qianhuang Expressway, eigenvalue buckling analysis is carried out by establishing three-dimensional finite element models three different types types, corresponding structural nonlinear loads under initial pier deviations are calculated. The calculation results show that less than elastic loads. stability column continuous better simple supported b...

Three-dimensional MEMS magnetometers with use of residual stresses in thin multilayers cantilevers are presented. Half-loop cantilevers based on Lorentz-force deflection convert magnetic flux in V ∆ changes, thanks to piezoresistive transducers mounted in Wheatstone bridge. Magnetic field in the order of 10 Gauss was measured with a sensitivity of 0.015 mV/Gauss. A Finite Element Model of the d...