Natural shark skin has a well-demonstrated drag reduction function, which is mainly owing to its microscopic structure and mucus on the body surface.In order to improve drag reduction, it is necessary to integrate microscopic drag reduction structure and drag reduction agent.In this study, two read more hybrid approaches to synthetically combine vi
An adaptive control approach is proposed for trajectory tracking and obstacle avoidance for mobile robots with consideration given to unknown sliding.A kinematic model of mobile robots is read more established in this paper, in which both longitudinal and lateral sliding are considered and processed as three time-varying parameters.A sliding model
Coupled controllers are vital for safely handling vehicles, especially in critical driving situations that include changing lanes to avoid obstacles.Controllers specialized in emergencies must keep road users sophie allport bee curtains safe in critical situations.In this paper, we develop the coupled controller to handle evasive maneuvers for an o
We study the coevolutionary caruso milk thistle dynamics of network topology and social complex contagion using a threshold cascade model.Our coevolving threshold model incorporates two mechanisms: the threshold mechanism for the spreading of a minority state such as a new opinion, idea, or innovation and the network plasticity, implemented as the