... to increase ankle stiffness during postural conditions. Summary: During postural conditions, the stiffness of the ankle in humans is determined primarily by the stiffness of the Achilles tendon, not that of the triceps surae muscles. Muscle Musculotendon mechanics System identification Stiffness...

... in a still-air flight chamber. As in still air, moths flying in the flower wake exhibit near-perfect tracking at the low frequencies at which natural flowers move. However, tracking in the flower wake results in a larger overshoot between 2 and 5 Hz. System identification of flower tracking reveals...

.... Flight control Flight thrust Fruit fly Insect Optic flow System identification Insects in flight can be portrayed as a black-box multisensory control system: continuous information, such as vision, air flow and scent, is gathered from the sensory organs, then combined and processed...

.... , Flower   J. O. ( 1994 ). The detection of and compensation for nonlinear effects using periodic input signals . In Proceedings of the International Conference on Control, 1994 , pp. 297 - 302 . USA : IEEE Pintelon   R. , Schoukens   J. ( 2012 ). System Identification: A Frequency...