EQUILIBRIUM CROSS-SECTIONAL SHAPE OF STRAIGHT SAND-SILT RIVERS WITH PERMEABLE DIKES

Mechanical properties of sand, silt, and clay containing tetrahydrofuran hydrate

[1] The mechanical behavior of hydrate-bearing sediments subjected to large strains has relevance for the stability of the seafloor and submarine slopes, drilling and coring operations, and the analysis of certain small-strain properties of these sediments (for example, seismic velocities). This study reports on the results of comprehensive axial compression triaxial tests conducted at up to 1 ...

Experimental study of applying colloidal nano Silica in improving sand-silt mixtures

Passive method is a new procedure in stabilizing loose soils. This methodology is a type of interlocking soil particles structures. In order to optimum improve in this method, it is necessary to achieve proper penetration length and increase the shear strength of parameters. Researches have shown an increased resistance to liquefaction and decreased permeability due to colloidal Nano silica inj...

Numerical Optimization of the Cross-sectional Shape of Turbine Blades

Industrial turbomachinery design requires fast and reliable algorithms for the numerical optimization of design parameters that innuence the ow in the turbomachine. The problem considered in this paper is to determine the cross-sectional shape of a blade in a turbomachine in order to reproduce as well as possible a given velocity proole of the ow around the blade. It is formulated as a least sq...

3d Cross-sectional Shape Measurement of the Foot While Walking

PRINCIPLE Most of the existing 3D shape measurement systems use laser scanning[2], and requires a time (several seconds, typically) for measurement. The principle of laser scanning measurement is triangulation between camera and laser projector. In the field of computer vision, 3D shape of the target object is reconstructed from multiple images using triangulation between multiple cameras (ster...

Effects of Cross Sectional Shape and Confining Material