in this paper, the effect of different boundary conditions on the free vibration analysis response of a sandwich plates is presented using higher order shear deformation theory. the face sheets are orthotropic laminated composite that follow the first order shear deformation theory (fsdt) based on rissners-mindlin (rm) kinematics field. based on energy method and hamilton's principle, the ...

so far, for an analysis of seepage under hydraulic structures much research has beenconducted in the form of numerical models. however, few field and laboratory workshave been performed to study the boiling phenomena for evaluating numerical models.throughout the present work, a laboratory model was built to simulate seepage and itscontrolling measures under sheet piles. the model consisted of ...

We present a liquid flatjet system for solution phase soft-x-ray spectroscopy. The flatjet set-up utilises the phenomenon of formation of stable liquid sheets upon collision of two identical laminar jets. Colliding the two single water jets, coming out of the nozzles with 50 μm orifices, under an impact angle of 48° leads to double sheet formation, of which the first sheet is 4.6 mm long and 1....

Formation and deepening of submarine canyons are typically attributed to erosion. We present data from an industry-grade seismic volume located offshore Brunei Darussalam illustrating how topography typically associated with erosion can be produced under conditions of net sediment deposition. These data were generated via subsurface mapping in the vicinity of a shale-cored anticline on the Quat...

When oil droplets impact a solid surface for oil-air lubrication, they may spread out to produce thin layer on the surface, which serves as significant source of lubrication. A test rig was constructed in this research observe spreading behavior impacting surfaces from both frontal and lateral views. From view, laser-induced fluorescence techniques are used measure thickness quantitatively duri...

The deposition of atomically thin highly uniform chemically derived graphene (CDG) films on 300 mm SiO(2)/Si wafers is reported. We demonstrate that the very thin films can be lifted off to form uniform membranes that can be free-standing or transferred onto any substrate. Detailed maps of thickness using Raman spectroscopy and atomic force microscopy height profiles reveal that the film thickn...