Sentences with phrase «granular materials»

Scientists previously discovered this method of preventing blockages in flows of granular materials like sand, which exhibit some of the same dynamics as the motion of crowds: Pack too many sand grains into one space and they freeze up like a solid, instead of flowing smoothly like a liquid.

Understanding how animals move through granular materials like sand could help the designers of robotic systems better understand how to optimize the use of energy, which can be a significant limiting factor in robotics.

«Any spacecraft that lands in regions of granular material on Titan is going to have a tough time staying clean.

One impurity is a difference in particle size, which is naturally seen in granular materials, nanoparticles, and colloidal crystals.

An astronaut put table salt, sugar crystals, and other granular materials inside plastic bags, shook them up, then video - recorded the results.

As it turns out, this theory works remarkably well for granular materials, and somewhat well in fluids.

Ivo said: «Our findings extend shear jamming beyond dry granular materials and demonstrate its relevance to dense particle suspensions too.

Whether footprints in sand, or the force of gravity on a mountain slope, physicists have long sought to understand what happens inside granular materials as they're pressed, pushed or squeezed.

The appearance and growth of these features resemble seeping liquid water, but how they form remains unclear, and this research demonstrated that the RSL flows seen by HiRISE are likely moving granular material like sand and dust.

«Granular media friction explained: Da Vinci would be proud: New study explains how solid friction forces affect granular materials in two or more dimensions.»

But more recently, thanks to advances in 3 - D imaging techniques and the number - crunching power of computers, researchers are starting to get a better picture of what happens when granular materials like soil or snow are pushed together.

He's found that rather than loosening them, vigorous shaking will make granular materials, like sand, dirt, and even instant rice, solidify.

It was only much later that scientists thought to apply the same idea to granular material such as sand; they found the theory predicted the force required to move objects through grains even better than its analog for fluids.

The equation he came up with is a variant of a standard model, based on Coulomb's yield criterion, a simple criterion that determines whether granular material will flow or not.

Researchers examining the behavior of beds of granular material find that vehicles moving at more than about three miles per hour will inevitably cause ripples in an unpaved road.

How granular material behaves — shifting and sifting and sliding around in miniature avalanches — may not seem like the most fascinating subject, but it is of vital importance in the real world: understanding such mechanics helps physicists model how grains move in silos, how soils collapse in earthquakes, and how certain materials and food products mix.

In addition to a detailed study of the mudskipper and development of a robot model that used the animal's locomotion techniques, the study also examined flow and drag conditions in representative granular materials and applied a mathematical model incorporating new physics based on the drag research.

Skin growths and mammary tumors: Many guinea pigs develop a swollen lump on their skin that may sometimes rupture and ooze gray to white granular material.

1.1 This test method covers a procedure for determining the water permeability of coarse granular materials used in the drainage layers of vegetative (green) roof systems.

And the work could also be useful in designing search and rescue robots able to move through sand and other granular materials.

They report that they have identified a mechanical explanation for why the equation works so well for granular materials.

Regardless of the application, be it a liquid, powder or solid, Bonar can help your company solve the most difficult material handling challenges with the industries broadest product line, which includes single and double wall bulk bins, insulated containers for temperature sensitive applications, dry handling hoppers for powders and dry granular materials, specialty drums and pallets, as well as a complete line of portable liquid containers for a variety of chemicals and food applications.

Welland provides a broad introduction to the science of sand (the physics of granular materials, sedimentology, paleontology, archaeology, planetary science) and sand's human context (including religion, art, mathematics, and exploration).

Our present offerings comprise flexible packaging solutions for solids, semi-solids, powders, granular materials, pastes, gels and viscous fluids.

With our aseptic liquid packaging material manufacturing plant commissioned at Sanand (Gujarat), we have completed our product bouquet in its entirety.Today we stand in a good stead to offer end - to - end flexible packaging solutions for all product types - be it solids, semi-solids, powders or granular materials, non-aerated liquids, viscous fluids, pastes or gels for that matter we can service them all with perfection much to the delight of our clients.

In this study, the authors have solved the equation describing the effect of solid friction on granular materials for an arbitrary number of dimensions.

Quinn is normally a theoretician who wrestles with problems of granular materials, such as how sand piles form and why Brazil nuts always end up at the top of mixed - nut cans.

Goldman specializes in studying how animals manage to move through sand and other granular materials that tend to give way.

Sandcastles are a prime example of how adding a small amount of liquid to a granular material changes its characteristics.

Researchers develop models for how machines run across sand, pebbles, and other granular materials

This new research finds that these RSL features are flows of granular material and thus, align with the long - standing hypothesis that the surface of Mars lacks flowing water.

The properties of granular materials have baffled physicists since Einstein's era because they do not fit neatly into the category of solid or liquid state.

«These non-silicate, granular materials can hold their electrostatic charges for days, weeks or months at a time under low - gravity conditions,» said George McDonald, a graduate student in the School of Earth and Atmospheric Sciences who also co-authored the paper.

Based on the physics of granular materials, this robotic gripper picks up delicate and oddly shaped objects by gently molding to them, then locking in place.

The increase in hydration could cause changes in the granular material on these slopes that triggers some of the flow that creates the dark streaks.

The company develops their own ePaper, using «electron powder and granular material.»

The gripper consisted of a balloon - like ball filled with sand - like granular material.