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Keywords: mechanical efficiency
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Journal Articles
J Exp Biol (2004) 207 (17): 3003–3014.
Published: 01 August 2004
... 2004 2004 molt wing-propelled diving Uria aalge Fratercula cirrhata biomechanics video analysis mechanical efficiency flap cycle For most birds the replacement of flight feathers is the most challenging component of the molting process as it requires a high energetic...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2004) 207 (11): 1925–1939.
Published: 01 May 2004
... rotation (supination) or rapid fin closure against the body. The energetics of pectoral fin rowing are estimated using the unsteady blade-element model and an indirect method based on the center of mass dynamics. The results indicate that the mechanical efficiency of pectoral fin rowing is low (0.1–0.3...
Journal Articles
J Exp Biol (2003) 206 (22): 4003–4010.
Published: 15 November 2003
... with volume loading, from a basal value of approximately 20 μl O 2 min -1 g -1 to approx. 40 μl O 2 min -1 g -1 , but was not significantly affected by the absence of coronary perfusion. Mechanical efficiency under basal conditions was approximately 17%,but was not affected by either volume loading...
Journal Articles
J Exp Biol (2003) 206 (7): 1201–1206.
Published: 01 April 2003
...Haruo Sugi; Hiroyuki Iwamoto; Tsuyoshi Akimoto; Hirohiko Kishi SUMMARY We were interested to estimate the maximum mechanical efficiency with which chemical energy derived from ATP hydrolysis is converted into mechanical work by individual cross-bridges when they perform their powerstroke...
Journal Articles
J Exp Biol (2001) 204 (21): 3765–3777.
Published: 01 November 2001
... and enthalpy output were determined, from which the maximum net mechanical efficiency could be calculated. The most notable result from these experiments was the constancy of enthalpy output per twitch, or energy cost, despite the various alterations made to the protocol. Changes in mechanical efficiency...