We studied the effect of delay on perception and action in contact with a force field that emulates elastic soft tissue with a rigid nonlinear boundary. Such field is similar to forces exerted on a needle during teleoperated needle insertion. We found that delay causes motor underestimation of the stiffness of this nonlinear soft tissue, without perceptual change. These experimental results are...

The periodontal ligament (PDL) is a soft biological tissue which shows a strongly nonlinear and time dependent mechanical behavior. Recent experiments on rabbit PDL revealed that the rate of stress relaxation is strain dependent. This nonlinear behavior of PDL cannot be described well by the separable quasi linear viscoelasticity theory which is usually used in tissue biomechanics. Therefore, P...

in this study, the nonlinear optical properties and optical limiting performance of the silver nanoparticles (agnps) in distilled water are investigated. the nonlinear absorption coefficient of the colloid is measured by the z-scan technique. the optical limiting behavior of the agnp suspension is investigated under exposure to nanosecond laser pulses at 532 nm. the results show that nonlinear ...

this paper proposes a three-step method for solving nonlinear volterra integralequations system. the proposed method convents the system to a (3 × 3)nonlinear block system and then by solving this nonlinear system we ndapproximate solution of nonlinear volterra integral equations system. to showthe advantages of our method some numerical examples are presented.

In surgical training applications and experimental research, brain tissues immersed in cerebrospinal fluid often involve very complex deformation strain rate effects, which affects their reliability stability. Thus, it is indispensable to develop a high-fidelity human tissue simulant material as physical surrogate model understand mechanical behavior, such traumatic injury (TBI). However, the r...

Cell proliferation, apoptosis, and myosin-dependent contraction can generate elastic stress strain in living tissues, which may be dissipated by internal rearrangement through cell topological transition cytoskeletal reorganization. Moreover, cells tissues change their sizes response to mechanical cues. The present work demonstrates the role of tissue compressibility rearranging activities on i...