This paper reports results from an investigation into the suction caissons failure mechanisms under vertical pull-out loads. An insight to the failure mechanisms of suction caissons paves the path for developing analytical solutions to their pull-out capacity. The numerical models of suction caissons have first been calibrated by and verified against several experimental data from other researc...

The effect of zinc phosphate (ZP) and zinc calcium phosphate (ZCP) coatings on the reinforcing mechanisms of smooth steel fiber in cementitious matrix have been studied. The results of pull out tests illustrated that by coating smooth steel fiber the pull-out load may be increased up to 100%. The effect of zinc phosphate coating on interface bonding was more than zinc-calcium phosphate coating....

Traditional MEMS filters use a comb drive structure that suffers from the pull-in instability, which places significant limitation on achievable signal-to-noise ratio of sensor. Because output signal capacitive sensor is linearly related to applied voltage, it desirable can withstand large voltages upwards 100 V. However, instability causes high destroy device and trade-off between performance ...

nanocantilevers using electrostatic pull-in instability H. Sadeghian, C. K. Yang, J. F. L. Goosen, E. van der Drift, A. Bossche, P. J. French, and F. van Keulen Structural Optimization and Computational Mechanics (SOCM) Group, Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, Delft, Zuid Holland 2628 CD, The Netherlands Electronic Instrumentation ...

We present a novel visual attention tracking technique based on Shared Attention modeling. Our proposed method models the viewer as a participant in the activity occurring in the scene. We go beyond image salience and instead of only computing the power of an image region to pull attention to it, we also consider the strength with which other regions of the image push attention to the region in...

A nonlinear continuum model is used to investigate the dynamic behavior of an array of N nonlinearly coupled microbeams. Investigations concentrate on the region below the array’s first pull-in instability, which is shown to be governed by several internal three-to-one and combination resonances. The nonlinear equations of motion for a two-element system are solved using the asymptotic multiple...

The question of land in Zimbabwe has always been political and gendered. Whereas land reform was necessary in the context of highly unequal land ownership patterns and poverty, this paper shows that the Fast Track Land Reform Programme diminished opportunities or spaces for women to be empowered and shrunk the democratic spaces for genuine participation of women in the development process by de...