Sentences with phrase «angular velocity»

Increased energy could allow a free body spinning in a vacuum to retain a constant angular velocity even as its mass moves away from its center.

In these systems the force - velocity relationship is more accurately referred to as joint torque - angular velocity relationship.

They report that when performing plantarflexion with the knee fully extended, the medial and lateral gastrocnemius displayed superior peak muscle activity with increasing angular velocity, while the soleus displayed decreasing peak muscle activity with increasing velocity.

When different studies use the same angular velocity for measurement, these can be compared to one another, so long as differences between the populations tested are acknowledged, and so long as the dynamometer used is the same in both cases, as differences have been observed between brands (Francis & Hoobler, 1987; Thompson et al. 1989; Gross et al. 1991).

Since higher range of motion correlates with greater angular velocity in the kick, the researchers conclude that dynamic stretching is better than static stretching for soccer players.

Dynamometers are machines that provide resistance at a selected, set angular velocity during single - joint movements, following the angular motion of the joint (Baltzopoulos, 2007).

It can be simply measured using dynamometry by taking multiple measurements in the same dynamometer of the same joint angle movement, at different angular velocities.

They never measured angular velocity or performance.

Since the moment arm lengths for hip extension appear to be similar between the semitendinosus, semimembranosus and biceps femoris (long head)(Dostal et al. 1986), this may imply that one muscle in each subgroup is better suited for producing large excursions with high joint angular velocities while the other may be better suited for performing very forceful muscular contractions over short excursions (see review by Lieber and Fridén, 2000).

The set angular velocity can be zero, in which case the external resistance is isometric, or non-zero, in which case the external resistance is isokinetic.

Jump shrugs display greater peak power output, peak force, peak velocity, and peak angular velocities than the hang clean and high pull.

The isometric training was performed with maximal speed - intent but without moving, while the isokinetic training was performed with maximal speed - intent, and at a relatively high angular velocity (300 degrees / s).

«Our novelty was to realise that by twisting the helicity of these beams in a non-linear fashion, the result would be a propagation dependent angular velocity,» he explains.

Common angular velocities used by researchers are 30, 60, 90, 180, 270, 360 and 480 degrees per second, although other velocities can be used.

Power equals torque times angular velocity (omega), so if you know the (max) torque curve the (max) power can be calculated.

It is demonstrated that the periodicity of the solid runoff correlates with the 18.6 - year periodicity of the Earth's angular velocity variations caused by the 18.6 - year cyclicity of the variability of lunisolar tides.

Firstly, joint angular velocities in COD maneuvers are often surprisingly low (Green et al. 2011; Shimokochi et al. 2013), at least in comparison with linear sprinting (Kivi et al. 2002).

In the Practical Applications section they all of a sudden make the leap from their study on DROM to increased angular velocity.

Dynamometers achieve this constant angular velocity by constant monitoring and subsequent increases or decreases the braking forces applied to the moving arm of the machine (Baltzopoulos, 2007).

So, if your two starter motors are spinning at the same angular velocity (in order to get the diesel engine started), the 4KW motor will have not quite twice the torque of...

The model additionally assume constant angular velocity during the disk accretion phase and allow for decoupling between the radiative core and the convective envelope as soon as the former develops.

Exploring the effect of repetition speed, Tamaki et al. (1996) compared plantar flexion at three different angular velocities (6, 30 and 60 degrees per second).

Given the data they collected with video and markers, it does seem a little odd that they wouldn't have simply measured angular velocity (or even ball velocity!)

We sense heat, cold, angular velocity, linear acceleration, internal pain (such as headache), relative position of limbs (proprioception), digestive system state (nausea), hunger and thirst and more, all without having to touch anything external or using the other four senses.

Antilock brakes use Hall effect transducers to detect changes in a car wheel's angular velocity, which can then be used calculate the appropriate braking pressure on each wheel.

They are also interested in going beyond their current study, in which they reduced FOV as a simple function of speed and angular velocity, to instead see the effect of reducing FOV based on parameters such as heart rate or optical flow.

First - order models predicted that solar wind compression regions would induce an increase in the angular velocity of the equatorial plasma and decrease the currents related to the lag from corotation, thus resulting in a dimmer aurora (e.g. Southwood & Kivelson 2001).

Models of Vega based on CHARA observations suggest that the star is rotating at about 91 + / - 3 percent of the speed (angular velocity) that would cause it to physically fly apart.

We study a modiied version of the well known Markov - Dubins problem, in which the control is angular acceleration rather than angular velocity.

In the second pull phase, peak hip, knee and ankle joint angular velocities are around 420 — 470, 280 — 400, and 210 — 370 degrees / s, respectively (Gourgoulis et al. 2002; 2009; Akkuş, 2012; Harbili, 2012; Harbili & Alptekin, 2014) and are not affected by the load used (Harbili & Alptekin, 2014) or whether the lift was successful (Gourgoulis et al. 2009).