in present research, 17 centrifuge tests have been conducted to study the effect of various parameters such as the number of piles, the distance between piles, gradation and thickness of the granular layer on the load-settlement behavior of a pile raft system. the results showed the importance of granular layer to reduce the settlement of non-connected pile raft system when the roles of piles a...

In an adaptation of standard technics and apparatus, aqueous homogenates from single rat lenses are introduced into capillary tubes, soluble and insoluble constituents are separated using a micro hematocrit centrifuge, and samples are frozen and stored in the capillary tubes. To allow quantitative transfer of sample aliquots from these capillaries for chemical and immunologic determinations, co...

Simultaneous in-situ measurements of resistivity and capillary pressure in a centrifuge up to speeds of 10000 rpm are reported. The setup can easily be automated for routine measurements and the electrode design takes advantage of the centrifugal force to maintain good contact between the sample and the electrodes. For converting the experimentally measured average saturations and resistivities...

In this study, randomly distributed fiber reinforcement on the desiccation cracking behavior of expansive clay was investigated. Modeling considerations for unreinforced and fiber-reinforced established using dimensional analysis. A custom-designed setup consisting a specimen container, heating assembly, digital image acquisition system designed, calibrated, used in present study. series tests ...

A single-tube blood culture device designed for centrifugation in a tabletop centrifuge is described. Reconstruction experiments using 21 different organisms and human donor blood indicate that excellent recovery can be obtained by centrifugation for 30 min at 3,000 X g.

The water retention curve, which relates the matric potential, ?, to content, ?, is essential describe flow processes in unsaturated zone and provides useful information for environmental engineering applications. There are few studies devoted measuring rock curves due rock’s tightness, makes it more technically difficult use specific methods. In this study, we tested four different methods mea...

This study examines the influence of impact-driven installation on subsequent horizontal monotonic response small-scale monopiles by using a large-beam geotechnical centrifuge at 100g. A special device including hammer was developed to install open-ended 50 mm in diameter an embedment depth 250 flight, and then apply lateral loading monopile head without stopping centrifuge. The global local re...

where the kernel K is known exactly and given by the underlying mathematical model. g is only known with a limited degree of accuracy in a finite and discrete set of points x1, . . . , xM . However, the sought function f (t) is continuous. By the nature of the right-hand side, g(x), equation (1) is a discrete inverse problem which is ill-posed in the sense of Hadamard [9]. By a parameterization...

Experimental proof is provided of an unconventional seismic design concept, which is based on deliberately underdesigning shallow foundations to promote intense rocking oscillations and thereby to dramatically improve the seismic resilience of structures. Termed rocking isolation, this new seismic design philosophy is investigated through a series of dynamic centrifuge experiments on properly s...