Phototactic supersmarticles

Phototactic supersmarticles
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趋光性超级粒子

DOI:
10.1007/s10015-018-0473-7
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发表时间:
2018
影响因子:
0.9
通讯作者:
Goldman, Daniel I.
Goldman, Daniel I.
中科院分区:
--
文献类型:
--
作者:
Savoie, William;Cannon, Sarah;Daymude, Joshua J.;Warkentin, Ross;Li, Shengkai;Richa, Andréa W.;Randall, Dana;Goldman, Daniel I.

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智能柱或智能活性粒子是小型机器人,仅配备基本运动和传感能力,无法单独旋转或位移。我们研究智能柱的整体行为,即这些非常简单的计算元素的集合可以实现的行为,以及如何使用最少的编程来实现这种行为。我们证明,一组智能柱被限制为彼此靠近(我们称之为超级智能柱),实现了朝向或远离光源的定向运动,这种现象称为光趋化。我们提出了光趋化超级粒子的实验和理论模型,这些粒子响应光而集体移动并进行定向位移。超级智能体的运动是随机的,执行近似自由扩散,并且是智能体之间混沌相互作用的结果。该系统可以通过在单个智能体的行为之间引入不对称性来进行引导,在我们的例子中,通过改变对光的响应活动水平,从而产生超智能体偏置的运动。
Smarticles or smart active particles are small robots equipped with only basic movement and sensing abilities that are incapable of rotating or displacing individually. We study the ensemble behavior of smarticles, i.e., the behavior a collective of these very simple computational elements can achieve, and how such behavior can be implemented using minimal programming. We show that an ensemble of smarticles constrained to remain close to one another (which we call a supersmarticle), achieves directed locomotion toward or away from a light source, a phenomenon known as phototaxing. We present experimental and theoretical models of phototactic supersmarticles that collectively move with a directed displacement in response to light. The motion of the supersmarticle is stochastic, performing approximate free diffusion, and is a result of chaotic interactions among smarticles. The system can be directed by introducing asymmetries among the individual smarticle’s behavior, in our case, by varying activity levels in response to light, resulting in supersmarticle-biased motion.
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