Results 201 to 210 of about 6,794,959 (251)
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Journal of Biomechanics, 1999
A mechanical model is proposed which quantitatively describes the dynamics of the centre of gravity (c.g.) during the take-off phase of the long jump. The model entails a minimal but necessary number of components: a linear leg spring with the ability of lengthening to describe the active peak of the force time curve and a distal mass coupled with ...
A, Seyfarth +3 more
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A mechanical model is proposed which quantitatively describes the dynamics of the centre of gravity (c.g.) during the take-off phase of the long jump. The model entails a minimal but necessary number of components: a linear leg spring with the ability of lengthening to describe the active peak of the force time curve and a distal mass coupled with ...
A, Seyfarth +3 more
openaire +2 more sources
Management Research: The Journal of the Iberoamerican Academy of Management, 2014
Purpose – The purpose of this paper is to help Ibero-American researchers identify the key challenges and benefits of moving to an Anglo-Saxon university for a period in their careers. Design/methodology/approach – This is a review of the insights provided by a ...
Miguel Pérez-Valls +1 more
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Purpose – The purpose of this paper is to help Ibero-American researchers identify the key challenges and benefits of moving to an Anglo-Saxon university for a period in their careers. Design/methodology/approach – This is a review of the insights provided by a ...
Miguel Pérez-Valls +1 more
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Stochastic walker with variable long jumps
Physical Review E, 2023Motivated by recent interest in the stochastic resetting of a random walker, we propose a generalized model where the random walker takes stochastic jumps of lengths proportional to its present position with certain probability, otherwise it makes forward and backward jumps of fixed (unit) length with given rates.
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Motion Analysis for the Standing Long Jump
26th IEEE International Conference on Distributed Computing Systems Workshops (ICDCSW'06), 2006The standing long jump is a standard test for primary school students. It can be used to evaluate the development of basic sports skills of a child. This paper presents a system that can automatically detect the motion during a standing long jump from a video sequence.
Hui-Huang Hsu +4 more
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Role of long jumps in surface diffusion
Physical Review E, 2002We analyze a probability of atomic jumps for more than one lattice spacing in activated surface diffusion. First, we studied a role of coupling between the x and y degrees of freedom for the diffusion in a two-dimensional substrate potential. Simulation results show that in the underdamped limit the average jump length scales with the damping ...
O. M: BRAUN, FERRANDO, RICCARDO
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Long Jumps in the Surface Diffusion of Large Molecules
Physical Review Letters, 2002We have studied the diffusion of the two organic molecules DC and HtBDC on the Cu(110) surface by scanning tunneling microscopy. Surprisingly, we find that long jumps, spanning multiple lattice spacings, play a dominating role in the diffusion of these molecules--the root-mean-square jump lengths are as large as 3.9 and 6.8 lattice spacings ...
Schunack, M. +5 more
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2015
It is seldom possible to identify parachute missions to Persia specifically from the existing records. This is true, for instance, of a number of unidentified aircraft and parachute sightings mentioned either in the archival records or in other literature,3 or even in internet forums and blogs, where scholarly sourcing is seldom found.
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It is seldom possible to identify parachute missions to Persia specifically from the existing records. This is true, for instance, of a number of unidentified aircraft and parachute sightings mentioned either in the archival records or in other literature,3 or even in internet forums and blogs, where scholarly sourcing is seldom found.
openaire +1 more source
Significance of Angular Momentum in Long Jumping
Research Quarterly. American Association for Health, Physical Education and Recreation, 1973Abstract The equations of rigid body dynamics were used to provide a planer digital computer simulation of the flight phase of the Hitchkick, Hang, and Sail styles of long jumping. The formulation was based on the principle of conservation of angular momentum for the flight or free-fall phase of the jump.
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Force relationships of the running long jump
Medicine & Science in Sports & Exercise, 1970ABSTRACTThe horizontal and vertical force-time relationships that occur at the take-off board for the Running Long Jump are presented. These relationships are manipulated using the impulse-momentum equations of physics to yield the take-off velocities in the horizontal and vertical directions.
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The Journal of Chemical Physics, 1990
Diffusion on surfaces has in the past been modeled as a random walk in continuous time between nearest-neighbor sites on a lattice. In order to allow tests for the possible participation of long jumps in actual diffusion processes, we examine the properties of random walks in which transitions are not limited to jumps between nearest-neighbor sites ...
John D. Wrigley +2 more
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Diffusion on surfaces has in the past been modeled as a random walk in continuous time between nearest-neighbor sites on a lattice. In order to allow tests for the possible participation of long jumps in actual diffusion processes, we examine the properties of random walks in which transitions are not limited to jumps between nearest-neighbor sites ...
John D. Wrigley +2 more
openaire +1 more source