Abstract To navigate in spatial fields of sensory cues, bacterial cells employ gradient sensing by temporal comparison for run-and-tumble chemotaxis. Sensing and motility noise imply trade-off choices between precision accuracy. gain insight into these trade-offs, we learn optimal chemotactic decision filters using supervised machine learning, applying support vector machines to a biologically ...

The authors investigate the effects of stochastic resetting on current fluctuations for two different models particle motion: Brownian motion and run-and-tumble motion. Using analytical numerical methods, they find large differences in how approach steady state annealed quenched cases.

Tumble dryers are widely used for drying garments, but felting shrinkage can be caused to wool garments during the tumble process. To dry fabrics or in dryers, flat function has been introduced dryers; however, energy efficiency is very low. The current study investigated fabric movement at different rotation speeds dryer and their resultant performances terms of specific moisture extraction ra...

We describe an efficient, bubble-free nanoscale motor consisting of a copper-platinum (Cu-Pt) segmented rod that operates as a nanobattery in dilute aqueous Br(2) or I(2) solutions. The motion of the rod is powered by self-electrophoresis caused by redox reactions occurring on the two different metal segments. Asymmetric ratchet-shaped pure copper nanorods were also found to rotate and tumble i...

Quadrupedal robots working outdoors are very slow robots prone to tumble down in the presence of perturbations. This paper presents a novel gaitadaptation method that enables walking-machine gaits to autonomously adapt to environmental perturbations, including the slope of the terrain, by finding the gait parameters that maximize robot’s dynamic stability. Experiments with the SILO4 quadruped r...