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Keywords: Velocity
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Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243231.
Published: 8 March 2022
... frequency and length. Small-bodied crouched animals primarily regulate speed through changes in stride frequency, while large-bodied arboreal species modulate stride length. Allometry Locomotion Arboreal Posture Velocity Tetrapods New York Institute of Technology College of Osteopathic...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (1): jeb216036.
Published: 13 January 2020
... that as the Froude number is of the order of unity – otherwise it would not be possible to clear the tail out of the water). The instantaneous (reduced) velocity, , is given by Eqn A34 , but even with Eqn A51 , Ē k ( x̄ ) is still a sixth-order polynomial, and hence cannot be easily integrated in Eqn A35...
Journal Articles
J Exp Biol (2019) 222 (7): jeb198085.
Published: 4 April 2019
... contests and to hard–shelled prey while feeding. We compared the scaling of strike kinematics and energetics between feeding and contests in the mantis shrimp Neogonodactylus bredini . We filmed strikes with high-speed video, measured strike velocity and used a mathematical model to calculate strike energy...
Journal Articles
J Exp Biol (2016) 219 (7): 1004–1013.
Published: 1 April 2016
... predict that an increasing number of obstacles will increase the frequency of pausing and decrease sprint velocity. Furthermore, bipedal running over multiple obstacles is predicted to maintain greater mean sprint velocity compared with quadrupedal running, thereby revealing a potential advantage...
Journal Articles
J Exp Biol (2012) 215 (23): 4115–4124.
Published: 1 December 2012
...Pauline Provini; Bret W. Tobalske; Kristen E. Crandell; Anick Abourachid SUMMARY Take-off mechanics are fundamental to the ecology and evolution of flying animals. Recent research has revealed that initial take-off velocity in birds is driven mostly by hindlimb forces. However, the contribution...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (16): 2668–2678.
Published: 15 August 2009
...Peter G. Adamczyk; Arthur D. Kuo SUMMARY Simple dynamic walking models based on the inverted pendulum predict that the human body's center of mass (COM) moves along an arc during each step,with substantial work performed to redirect the COM velocity in the step-to-step transition between arcs...
Journal Articles
J Exp Biol (2008) 211 (24): 3889–3907.
Published: 15 December 2008
....) and stability (≤20 deg.) of the head and trunk. Three adult horses ( Equus caballus ) performing walks, trots and canters were videotaped in lateral view. Data analysis included locomotor velocity, segmental positions, pitch and linear displacements and velocities, and head displacement frequencies. Equine...
Journal Articles
J Exp Biol (2006) 209 (19): 3697–3707.
Published: 1 October 2006
... by A. aculeatus and other octopuses are discussed. e-mail: chuffard@berkeley.edu 10 7 2006 © The Company of Biologists Limited 2006 2006 hydrostatic multi-legged bipedal camouflage velocity mimicry Unlike other examples of multi-limbed hydrostats such as caterpillars( Mezoff...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (5): 809–819.
Published: 1 March 2005
... with chemically mediated navigation. We exposed individual whelks to turbulent odor plumes in free-stream velocities of 1.5,5, 10 or 15 cm s –1 , or with one of two obstructions placed upstream of the odor source in an intermediate flow of 5 cm s –1 . Measurements of velocity and stimulus properties confirmed...
Journal Articles
J Exp Biol (2004) 207 (8): 1345–1352.
Published: 15 March 2004
... their initial flight velocity using leg thrust rather than wing flapping. The smallest birds, hummingbirds (Order Apodiformes), are unique in their ability to perform sustained hovering but have proportionally small hindlimbs that could hinder generation of high leg thrust. Understanding the take-off flight...
Journal Articles
J Exp Biol (2004) 207 (4): 697–708.
Published: 1 February 2004
... measures, complemented by mean velocity. A library was constructed of 75 trajectories, each of 5 min duration, acquired from five fish swimming in a constant and relatively homogeneous environment. Three nonlinear measures, the `characteristic fractal dimension' and `Richardson dimension',both quantifying...
Journal Articles
J Exp Biol (1984) 113 (1): 151–164.
Published: 1 November 1984
...GEORGE V. LAUDER Instantaneous water velocities in the respiratory tract of bass, Micropterus salmoides (Lacepéde), were measured using a fast-responding hot-filmanemometer. The flow velocity wave form varied within the buccal cavity, with lower peak velocities at the back than at the front. Flow...