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Keywords: Dynamics
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Journal Articles
J Exp Biol (2022) 225 (1): jeb242305.
Published: 7 January 2022
... ascend primarily by pulling upward from an overhead branch using the beak and feet, while resisting the gravitational pitching moment with horizontal force couples of the beak, feet and tail. Vertical Branch Dynamics Torque Gait Locomotion National Science Foundation http...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (13): jeb224113.
Published: 1 July 2020
...Peter C. Raffalt; Jenny A. Kent; Shane R. Wurdeman; Nick Stergiou ABSTRACT During locomotion, humans change gait mode between walking and running as locomotion speed is either increased or decreased. Dynamical systems theory predicts that the self-organization of coordinated motor behaviors...
Journal Articles
J Exp Biol (2016) 219 (22): 3532–3543.
Published: 15 November 2016
...Bo Cheng; Bret W. Tobalske; Donald R. Powers; Tyson L. Hedrick; Yi Wang; Susan M. Wethington; George T.-C. Chiu; Xinyan Deng ABSTRACT The superior manoeuvrability of hummingbirds emerges from complex interactions of specialized neural and physiological processes with the unique flight dynamics...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (23): 4435–4442.
Published: 1 December 2013
... gairdneri) and starry flounder (Platichthys stellatus) . J. Exp. Biol.   133 , 263 - 282 . Mommsen   T. P. , Vijayan   M. M. , Moon   T. W. ( 1999 ). Cortisol in teleosts: dynamics, mechanisms of action, and metabolic regulation . Rev. Fish Biol. Fish.   9 , 211 - 268 . Øverli   Ø...
Includes: Supplementary data
Journal Articles
J Exp Biol (2007) 210 (11): 1912–1924.
Published: 1 June 2007
... ( r 2 =0.55, P <0.00001), but greatly overestimated roll magnitude when applied with no roll damping. Non-dimensional roll damping coefficients of approximately –1.5,2–6 times greater than those typical of airplane flight dynamics(approximately –0.45), were required to bring our estimates...
Journal Articles
J Exp Biol (2007) 210 (11): 1897–1911.
Published: 1 June 2007
... biomechanics flight dynamics Eolophus roseicapillus Although the vast majority of the experimental work on the biomechanics of avian flight has focused on steady state flight, this focus owes much to the theoretical and experimental tractability of level, straight flight rather than its importance...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2006) 209 (15): 2990–3000.
Published: 1 August 2006
...Daniel I. Goldman; Tao S. Chen; Daniel M. Dudek; Robert J. Full SUMMARY Rapid, vertically climbing cockroaches produced climbing dynamics similar to geckos, despite differences in attachment mechanism, `foot or toe'morphology and leg number. Given the common pattern in such diverse species,we...
Journal Articles
J Exp Biol (2006) 209 (9): 1617–1629.
Published: 1 May 2006
... protrusions. We present a simple mechanosensory model for the task-level dynamics of wall following. In the model a torsional, mass-damper system describes the cockroach's turning dynamics, and a simplified antenna measures distance from the cockroach's centerline to a wall. The model predicts...
Journal Articles
J Exp Biol (2006) 209 (2): 260–272.
Published: 15 January 2006
... Limited 2006 2006 locomotion dynamics climbing leg function mechanical stability power gecko Hemidactylus garnotii No general dynamic model of legged climbing exists. By contrast, a single mass-spring model of level running captures the dynamics of two-, four-, six-and eight-legged...
Journal Articles
J Exp Biol (2006) 209 (2): 249–259.
Published: 15 January 2006
... the magnitude of fore–aft forces. The differential leg function of sprawled-posture geckos resembled sprawled-posture hexapods more than upright-posture quadrupeds. The pattern of leg ground reaction forces observed may provide passive, dynamic stability while minimizing joint moments, yet allow high...
Journal Articles
J Exp Biol (2003) 206 (20): 3675–3680.
Published: 15 October 2003
...John O. Dabiri; Morteza Gharib SUMMARY Models of medusan swimming typically rely on kinematic approximations to observed animal morphology to make such investigations tractable. The effect of these simplifications on the accuracy of predicted dynamics has not been examined in detail. We conduct...
Journal Articles
J Exp Biol (1991) 158 (1): 149–164.
Published: 1 July 1991
...ULRICH LÖNNENDONKER The dynamic components of the fixation behaviour of walking Colorado beetles were examined. The beetles walked on top of a locomotion compensator under closed-loop conditions. The fixation target was a yellow disk with small black stripes (‘Colorado dummy’). The paths of beetles...