Sentences with phrase «shearing forces in»

This means we increase the potential for stress in the spine and can increase the shearing forces in the discs.

If a researcher extracts a one - inch sample of rock from the fault zone located inside a single plate and subjects it to compression and shearing forces in a laboratory until it slips, it will behave in much the same way that rocks in the ground do.

Although low back joint compressive and shear forces in the clean performed by elite Olympic weightlifters are high (around 8,600 N and 1,200 N, respectively), they are not as high as in the deadlift performed by elite powerlifters of similar bodyweight (around 14,500 N and 1,700 N, respectively).

«That produces an S - shape in the neck, and that can develop a lot of shear forces in the neck,» Romilly says.

The full deceleration of the head, neck and torso, aggravated by the tightened seat belt, creates high tension and shear forces in the spine, brain stem, nerves and ligaments.

Not exact matches

Bill Gurley: One thing I would say to that is I don't think there are any opportunities to disrupt healthcare in that type of way, simply because the amount, the shear force of inertia, the amount of regulation that exists, there's no way for someone to rush in and disrupt at that level with kind of hackneyed solutions.

Secondary waves move only through solids; shear forces don't exist in liquids (since liquids can't be torn apart).

The trophoblasts along with blood vessel cells were added to small dextran beads that were then spun around in a container filled with cell culture fluid, creating shear stress and rotational forces to better mimic the environment at the maternal - fetal interface than static cell - culture systems.

For instance, there are three standard measures of a material's stiffness: One describes its deformation in the direction of an applied force, or how far it can be compressed or stretched; one describes its deformation in directions perpendicular to an applied force, or how much its sides bulge when it's squeezed or contract when it's stretched; and the third measures its response to shear, or a force that causes different layers of the material to shift relative to each other.

Coulomb's equation states that in order to slide one hand against the other the shear stress — akin to the force applied to slide your hands — divided by the surrounding pressure — squeezing the sand together — must equal something called the friction coefficient.

In addition to this shear effect, the cavitating jet also produces a considerable force when the bubbles collapse that is able to remove particles from the biofilm and carry them away.

He's been focused on the study of impact - induced shear waves, which jostle tissue with relatively slow, side - to - side forces, in contrast to the better - studied compression waves that travel in the direction of impact at the speed of sound.

In physics, shear stress is a stress state in which the shape of a material tends to change (usually by «sliding» forces — torque by transversely - acting forces) without particular volume changIn physics, shear stress is a stress state in which the shape of a material tends to change (usually by «sliding» forces — torque by transversely - acting forces) without particular volume changin which the shape of a material tends to change (usually by «sliding» forces — torque by transversely - acting forces) without particular volume change.

Vascular Imaging Integrating 4 - D light - sheet imaging and hemodynamic shear forces to elucidate endocardial Notch - Nrg1 - ErbB2 signaling and trabeculation Tzung Hsiai, University of California, Los Angeles Matrix metalloproteinase - targeted imaging of vascular remodeling in aortic aneurysms Mehran Sadeghi, Yale University

\ n \ n «It?s still not clear how the cells sense shear stress, and researchers are trying to unravel the chain of events between mechanical force and stem cell production in order to manipulate the process to make blood stem cells for transplant.»

In addition, both internal variability and aerosol forcing are likely to affect tropical storms in large part though changes in ocean temperature gradients (thereby changing ITCZ position and vertical shear), while greenhouse gases likely exert their influence by more uniformly changing ocean and tropospheric temperatures, so the physics of the problem may suggest this decomposition as more natural as welIn addition, both internal variability and aerosol forcing are likely to affect tropical storms in large part though changes in ocean temperature gradients (thereby changing ITCZ position and vertical shear), while greenhouse gases likely exert their influence by more uniformly changing ocean and tropospheric temperatures, so the physics of the problem may suggest this decomposition as more natural as welin large part though changes in ocean temperature gradients (thereby changing ITCZ position and vertical shear), while greenhouse gases likely exert their influence by more uniformly changing ocean and tropospheric temperatures, so the physics of the problem may suggest this decomposition as more natural as welin ocean temperature gradients (thereby changing ITCZ position and vertical shear), while greenhouse gases likely exert their influence by more uniformly changing ocean and tropospheric temperatures, so the physics of the problem may suggest this decomposition as more natural as well.

In addition, deadlifts train the spine to remain perfectly stable while exposed to ridiculously high shear forces, which makes people who perform them often look like some kind of superheroes.

These values were very similar to the snatch performed in the same athletes, where compressive forces were 7,020 ± 1,063 N (6.5 ± 1.1 times bodyweight) and shear forces were 1,065 ± 112N (1.0 ± 0.1 times bodyweight).

Exploring low back joint loads in the clean in nationally - ranked Olympic weightlifters weighing 94.1 kg on average, Burnett et al. (2002) reported that compressive forces at the L5 - S1 joint were 8,569 ± 1,825 N (6.7 ± 0.8 times bodyweight), while shear forces were 1,176 ± 211N (0.9 ± 0.1 times bodyweight).

Exploring low back joint loads in the snatch in nationally - ranked Olympic weightlifters weighing 94.1 kg on average, Burnett et al. (2002) reported that compressive forces at the L5 - S1 joint were 7,020 ± 1,463 N (6.5 ± 1.1 times bodyweight), while shear forces were were 1,065 ± 112N (1.0 ± 0.1 times bodyweight).

In a lifters in the 90 kg weight class, compressive forces at L4 - L5 were 14,487 ± 1,282 N and shear forces were 1,673 ± 104In a lifters in the 90 kg weight class, compressive forces at L4 - L5 were 14,487 ± 1,282 N and shear forces were 1,673 ± 104in the 90 kg weight class, compressive forces at L4 - L5 were 14,487 ± 1,282 N and shear forces were 1,673 ± 104N.

A slip or stumble can result in strong sudden shear forces across a joint, or sudden twisting which pulls directly on the ligaments - one interesting fact is that ligaments are NOT designed to be used at all!

However, in practice it rarely helps and sometimes exacerbates the problem due to the large shear forces that accompany the leg extension movement.

«It's in the safety cell and the floor to absorb shear forces, to transfer the energy from the front of the vehicle into the back.»

However, it seems such bendable e-readers are back again, thanks to a group of researchers based in Taiwan who claim to have hit upon a novel way of devising electronics that could withstand bending and shearing forces up to some extent.

When the ACL ruptures and the joint becomes unstable, the meniscus becomes vulnerable to the shear forces of the two bones moving in abnormal ways.

But it took companies like Nike and Adidas to come along and by shear force of will, raise the level of conversation in the sneaker department, before sneakers became bona fide global social objects, bona fide global powerhouse brands.

One type of forced convection is when the cold air from the poles flows under the warmer subtropical air, which results in wind shear.

Gravity does the pulling in the atmosphere and oceans, although, once in motion, viscous shear forces occur between adjacent layers moving at different velocities.

Warm ground (strong heating of the ground) and non-turbulent vertical flow due to convective shear forces slow enough to allow approximately adiabatic expansion and compression to occur in the overturning convective air parcels favors the DALR.

-- Wind shear: The less the vertical wind shear — the difference in the direction and force of the winds at the surface compared to several miles into the air — the more powerful the hurricane can become.The influence of the Atlantic Multidecadal Oscillation

In their Geophysical Research Letters publication the researchers also write that «aerosol invigoration effect occurs mainly in warmed - based convection with weak shear «-- as they could not find similar effects in frontal convection weather systems, which have higher wind shear and where air is forced up not by land surface warming, but by a pushing cold air wedgIn their Geophysical Research Letters publication the researchers also write that «aerosol invigoration effect occurs mainly in warmed - based convection with weak shear «-- as they could not find similar effects in frontal convection weather systems, which have higher wind shear and where air is forced up not by land surface warming, but by a pushing cold air wedgin warmed - based convection with weak shear «-- as they could not find similar effects in frontal convection weather systems, which have higher wind shear and where air is forced up not by land surface warming, but by a pushing cold air wedgin frontal convection weather systems, which have higher wind shear and where air is forced up not by land surface warming, but by a pushing cold air wedge.

Wind shear: The less the vertical wind shear — the difference in the direction and force of the winds at the surface compared to several miles into the air — the more powerful the hurricane can become.

The El Nino condition in the Pacific Ocean is one factor which can increase «wind shear» over the Atlantic, thereby limiting hurricanes even as other forces may be strengthening them.

The winds build up and start to bend from the coriolis force as they approach the low pressure center, and the whole thing migrates to the west and north, moving like a vacuum cleaner over warm water and growing in size and strength as long as the shear remains low.

Wind shear, both horizontal and vertical, is extremely important, and it is influenced in complex ways by large - scale circulation responses to the balance of various forcings.

However, even without the actual results from the models for the past 30 years, I think we can surmise that driven by changes in anthropogenic forcings alone, the models simulations of the past 30 years would be trending in a similar direction as the model projections for the future, that is, vertical stability and wind shear should be increasing, at least over the tropical Atlantic.

Three plate edges always meet together at just one point, a principle which enables the transmission of normal and shear forces but no bending moments between the joints, thus resulting in a bending bearing but yet deformable structure.

Significantly high shear forces develop in the neck and brain, the spinal curves straighten and the spine is compressed.