Results 51 to 60 of about 140,394 (193)

Recent Progress in Active Mechanical Metamaterials and Construction Principles

Advanced Science, Volume 9, Issue 1, January 5, 2022., 2022
Active mechanical metamaterials (AMMs) are newly emerged metamaterials in recent decades. Due to the elaborately designed internal micro‐structures and stimuli‐responsive characteristics, AMMs have both the advantages of unusual mechanical properties of mechanical metamaterials and the smart actuation functions of active materials.
Jixiang Qi, Zihao Chen, Peng Jiang, Wenxia Hu, Yonghuan Wang, Zeang Zhao, Xiaofei Cao, Shushan Zhang, Ran Tao, Ying Li, Daining Fang   +10 more
wiley   +1 more source

Ciliary propulsion and metachronal coordination in reef coral larvae

Physical Review Research, 2023
Larval dispersal is critical to the survival of coral reefs. As the only motile stage of the reproductive cycle, coral larvae choose a suitable location to settle and mature into adult corals.
Rebecca N. Poon, Timothy A. Westwood, Hannah Laeverenz-Schlogelhofer, Emelie Brodrick, Jamie Craggs, Eric E. Keaveny, Gáspár Jékely, Kirsty Y. Wan   +7 more
doaj   +1 more source

Amphibious Transport of Fluids and Solids by Soft Magnetic Carpets

Advanced Science, Volume 8, Issue 21, November 3, 2021., 2021
Artificial magnetic cilia on a soft carpet can be made via a self‐assembly route based on the Rosensweig instability. Soft carpets can transport both liquids and solid objects that are larger and heavier than the artificial cilia, using a crowd‐surfing effect.This amphibious transportation is locally and reconfigurably tunable by simple micromagnets or
Ahmet F. Demirörs, Sümeyye Aykut, Sophia Ganzeboom, Yuki A. Meier, Robert Hardeman, Joost de Graaf, Arnold J. T. M. Mathijssen, Erik Poloni, Julia A. Carpenter, Caner Ünlü, Daniel Zenhäusern   +10 more
wiley   +1 more source

Metachronal patterns by magnetically-programmable artificial cilia surfaces for low Reynolds number fluid transport and mixing [PDF]

, 2022
Motile cilia can produce net fluid flows at low Reynolds number because of their asymmetric motion and metachrony of collective beating. Mimicking this with artificial cilia can find application in microfluidic devices for fluid transport and mixing ...
Onck, Patrick R., Toonder, Jaap den, Zhang, Rongjing   +2 more
core   +2 more sources

Numerical Treatment for Dynamics of Second Law Analysis and Magnetic Induction Effects on Ciliary Induced Peristaltic Transport of Hybrid Nanomaterial

Frontiers in Physics, 2021
The presented communication provides the analysis of entropy generation and heat transport rate in peristalsis of hybrid nanofluid induced by metachronal ciliary beating under magnetic environment for sufficiently large magnetic Reynolds number ...
Saeed Ehsan Awan, Muhammad Awais, Muhammad Asif Zahoor Raja, Nabeela Parveen, Hafiz Muhammad Ali, Wasim Ullah Khan, Yigang He   +6 more
doaj   +1 more source

Metachronal Motion of Biological and Artificial Cilia. [PDF]

Biomimetics (Basel)
Cilia are slender, hair-like cell protrusions that are present ubiquitously in the natural world. They perform essential functions, such as generating fluid flow, propulsion, and feeding, in organisms ranging from protozoa to the human body.
Cui Z, Wang Y, den Toonder JMJ.
europepmc   +3 more sources

Tailoring Flexible Arrays for Artificial Cilia Actuators

Advanced Intelligent Systems, Volume 3, Issue 10, October 2021., 2021
Inspired by structures, rhythms, and functions of natural cilia, artificial cilia actuators that can respond to stimuli such as light, electric, magnetism, etc. are developed to facilitate particle/fluid manipulation, sensing, robot design, and many other fields.
Xiaoxuan Zhang, Jiahui Guo, Xiao Fu, Dagan Zhang, Yuanjin Zhao   +4 more
wiley   +1 more source

Fallopian tube rheology regulates epithelial cell differentiation and function to enhance cilia formation and coordination. [PDF]

Nat Commun
The rheological properties of the extracellular fluid in the female reproductive tract vary spatiotemporally, however, the effect on the behaviour of epithelial cells that line the tract is unexplored. Here, we reveal that epithelial cells respond to the
Abdul Halim MS, Dyson JM, Gong MM, O'Bryan MK, Nosrati R.   +4 more
europepmc   +2 more sources

Bending and low‐frequency vortex shedding of flexible cylinders in laminar shear flow

AIChE Journal, Volume 67, Issue 9, September 2021., 2021
Abstract Simulations of the interaction between flexible cylinders attached to a solid surface and a laminar shear flow have been performed. The flow simulations fully resolve the geometrical details and are based on the lattice‐Boltzmann method. An immersed boundary method is used to impose the no‐slip conditions at the cylinder surfaces and to ...
Jos J. Derksen
wiley   +1 more source

Generation of Direct-, Retrograde-, and Source-Wave Gaits in Multi-Legged Locomotion in a Decentralized Manner via Embodied Sensorimotor Interaction

Frontiers in Neural Circuits, 2021
Multi-legged animals show several types of ipsilateral interlimb coordination. Millipedes use a direct-wave gait, in which the swing leg movements propagate from posterior to anterior.
Yuichi Ambe, Shinya Aoi, Kazuo Tsuchiya, Fumitoshi Matsuno   +3 more
doaj   +1 more source