Monopod, bipod, tripod, and tetrapod gold nanocrystals.

Climbing favours the tripod gait over alternative faster insect gaits

To escape danger or catch prey, running vertebrates rely on dynamic gaits with minimal ground contact. By contrast, most insects use a tripod gait that maintains at least three legs on the ground at any given time. One prevailing hypothesis for this difference in fast locomotor strategies is that tripod locomotion allows insects to rapidly navigate three-dimensional terrain. To test this, we co...

Study on Energy Consumption in Turning Motion of Hexapod Walking Robots

This paper presents an analysis on energy consumption and energy efficiency of a hexapod robot during its turning motion over flat terrain. The energy consumption model has been derived for statically stable wave-turning gaits by considering a minimization of dissipating energy for optimal foot force distribution. Two approaches, such as minimization of norm of feet forces and minimization of n...

A three-leg model producing tetrapod and tripod coordination patterns of ipsilateral legs in the stick insect.

Insect locomotion requires the precise coordination of the movement of all six legs. Detailed investigations have revealed that the movement of the legs is controlled by local dedicated neuronal networks, which interact to produce walking of the animal. The stick insect is well suited to experimental investigations aimed at understanding the mechanisms of insect locomotion. Beside the experimen...

Investigating the Effects of Some Capping Agents upon Gold Nanocrystals Stability, Size and Surface Plasmon Resonance

Monomorphic platinum octapod and tripod nanocrystals synthesized by an iron nitrate modified polyol process.

Monomorphic Pt octapod and tripod nanocrystals have been successfully synthesized by an iron nitrate modified polyol process, in which iron nitrate has been proven to be vitally important for slowing down the reduction rate of Pt precursors.