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Energy-optimal strokes for multi-link microswimmers: Purcell's loops and Taylor's waves reconciled
[article]
2019
arXiv
pre-print
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Micron-scale swimmers move in the realm of negligible inertia, dominated by viscous drag forces. ...
In this paper, we formulate the leading-order dynamics of a slender multi-link (N-link) microswimmer assuming small-amplitude undulations about its straight configuration. ...
Figure 4 : 4 Optimal strokes for multi-link swimmers with large N for ∆x = 0.01l, where l is the length of a single link. ...
arXiv:1801.04687v3
fatcat:kzludthdojbzzf7ve5o5jbqp4i
Active Cloaking in Stokes Flows via Reinforcement Learning
[article]
2020
arXiv
pre-print
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This artificial intelligence enables them to dynamically adjust their swimming actions, so as to optimally form and robustly retain any desired arrangement around the moving object without disturbing it ...
Here, we devise a systematic methodology to actively cloak swimming objects within any arbitrarily crowded suspension of micro-swimmers. ...
Declaration of Interests The authors report no conflict of interest. ...
arXiv:1911.03529v2
fatcat:dmho5bbfavd5vao3yffo3tgshi
Design and Analysis of Micro Swimmers with Study of Mechanical Investigations Using Helical Spring Models
2020
Journal of Annals of Bioengineering
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helical spring swimmer models and analyzing several parameters of them gives us an optimal design. ...
By analyzing those results it had been framed out the optimal design of a helical spring micro swimmer. ...
Future multi component NWs/NRs should be centred in the fabrication of general nanostructures which are able to be do multi-tasking like drug delivery, sensing, water redemption, catalysis etc. and they ...
doi:10.33513/bioe/2001-11
fatcat:vsjp5jcpurgqbfgs4q7iwcwtbe
Applications of three-dimensional (3D) printing for microswimmers and bio-hybrid robotics
2015
Lab on a Chip
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Other than actuation, contractile cells have also been employed for powering artificial robotic swimmers. ...
Other than actuation, contractile cells have also been employed for powering artificial robotic swimmers. ...
doi:10.1039/c5lc90019k
pmid:25632887
fatcat:quzawcmltvgcbegn7m6e2ef4iq
Energy-optimal strokes for multi-link microswimmers: Purcell's loops and Taylor's waves reconciled
2019
New Journal of Physics
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Micron-scale swimmers move in the realm of negligible inertia, dominated by viscous drag forces. ...
The fully nonlinear optimal control problem is solved numerically for the cases N =3 (Purcell's three-link swimmer) and N =5 showing that, as the prescribed displacement becomes small, the optimal solutions ...
Figure 4 : 4 Optimal strokes for multi-link swimmers with large N for ∆x = 0.01l, where l is the length of a single link. ...
doi:10.1088/1367-2630/ab1142
fatcat:mhkytz5cvbahjmr7o3nlmr2xvu
Individual–Environment Interactions in Swimming: The Smallest Unit for Analysing the Emergence of Coordination Dynamics in Performance?
2017
Sports Medicine
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It is essential for sport scientists and practitioners to clearly identify the interactions that emerge between each individual swimmer and properties of an aquatic environment. ...
Determining the impact of each swimmer's movements on fluid flow, and vice versa, is a major challenge. ...
This multi-component parameter is composed of friction drag (forces acting tangential to the surface of the swimmer), form drag (dependent upon the shape or form of the swimmer) and wave drag (attributable ...
doi:10.1007/s40279-017-0684-4
pmid:28181208
fatcat:dt2tfgjdpre6vjbttiiqiavlgu
Bacteria-inspired nanorobots with flagellar polymorphic transformations and bundling
2017
Scientific Reports
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This method of swimming has been mimicked in an artificial swimmer composed of streptavidin coated magnetic microparticle chains linked together through biotinylated DNAs, attached to an erythrocyte, and ...
In particular, this method of propulsion has been extensively investigated for robotic swimmers, and the design and actuation of biomimetic micro-and nanoscale artificial flagella has been well established ...
that that 65 , and thus the observed hookless bundling, possibly through flagellar buckling instability 66 , may be an alternative bundling mechanism for multi-flagellated artificial swimmers. ...
doi:10.1038/s41598-017-14457-y
pmid:29074862
pmcid:PMC5658443
fatcat:3kbhvoyod5e3zdesgdai3wyvji
Can Magnetic Multilayers Propel Artificial Microswimmers Mimicking Sperm Cells?
2015
Soft Robotics
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2017 pre-print arXiv:1702.04278v1 fatcat:dqaqxzumnvahbk63wd2hrvba3i
We formulate and solve the equations governing the dynamics of a microscopic artificial swimmer composed of a head and of a tail made of a thin film of permanent magnetic material. ...
Finally, we compare the propulsion mechanism (swimming 'gait') of our swimmer with that of sperm cells. ...
, optimization, and motion planning stages. ...
doi:10.1089/soro.2015.0007
fatcat:7je3smeka5bgdifhoky65zfcre
Microfluidics for Microswimmers: Engineering Novel Swimmers and Constructing Swimming Lanes on the Microscale, a Tutorial Review
2021
Small
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This paper provides an updated review of recent advances in microfluidics applied to artificial and biohybrid microswimmers. ...
First, microfluidics offer simple and relatively low-cost devices for high-fidelity production of microswimmers made of organic and inorganic materials in a variety of shapes and sizes. ...
influence on artificial swimmers has also grown. ...
doi:10.1002/smll.202007403
pmid:33949106
fatcat:6zihpenij5hapnwphowtnq7eme
Millimeter-scale flexible robots with programmable three-dimensional magnetization and motions
2019
Science Robotics
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Moreover, a 3D magnetization profile allows higher-order and multi-axis bending, large-angle bending, and combined bending and torsion in one sheet of polymer, creating previously unachievable shape changes ...
and microrobotic locomotion mechanisms such as multi-arm power grasping and multi-legged paddle crawling. ...
(F) Path following error of a magnetic swimmer, corresponding to the path shown in (E).
Fig. 5 . 5 Untethered multi-arm magnetic microgripper. ...
doi:10.1126/scirobotics.aav4494
pmid:33137716
fatcat:6vaj4ys4kbdi7dty77535hwof4
Application of Virtual Reality Technology in Swimming Teaching
2016
International Journal of Emerging Technologies in Learning (iJET)
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Swimming is one of the most popular spots among college students, though it is hard to master. ...
A physical model and the software framework of the virtual reality system was proposed. ...
VR is a type of synthetic integration technique, which integrates computer graphics, computer human interaction, sensor technique, artificial intelligence, robotique, etc. and features with multi-sensing ...
doi:10.3991/ijet.v11i11.6246
fatcat:u7japh7zmrb6zdb2ok6zwcvo3y
Mini and Micro Propulsion for Medical Swimmers
2014
Micromachines
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This paper reviews the recent ideas and developments of these types of self-propelling devices, ranging from the millimeter scale down to the micro and even the nano scale. ...
and transportation of bio-materials and drugs, bio-sensing, and bio-surgery. ...
Conflicts of Interest The authors declare no conflict of interest.
References ...
doi:10.3390/mi5010097
fatcat:b4p5tyxbyzcoff5uocvauz4xiq
Mesoscopic magnetic systems: from fundamental properties to devices
[article]
2021
arXiv
pre-print
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Here we review various themes of current research within mesoscopic magnetic systems. ...
The authors suggest that exploitation of these swimming regimes could be used for better control of swarms, and importantly, show that artificial swimmers can adapt their swimming behaviours to a certain ...
optimizing materials, either doping a bulk single crystal or adjusting interface properties of thin films and multilayers. ...
arXiv:2107.09563v1
fatcat:qi5km2dxzvcmzitl6jogcwubia
Towards Automated Swimming Analytics Using Deep Neural Networks
[article]
2020
arXiv
pre-print
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There has not been much work on swimmer tracking or the creation of a swimmer database for machine learning purposes. ...
The result is a guide to the creation of a comprehensive collection of swimming data suitable for training swimmer detection and tracking systems. ...
This means that all examples of objects have adequate variance in terms of object size, orientation, pose, illumination, position and occlusion. ...
arXiv:2001.04433v1
fatcat:whrd2jiowvbv3ldu5xvvo4odz4
BERT-INT:A BERT-based Interaction Model For Knowledge Graph Alignment
2020
Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence
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Instead of aggregating neighbors, we compute the interactions between neighbors which can capture fine-grained matches of neighbors. Similarly, the interactions of attributes are also modeled. ...
Experimental results show that our model significantly outperforms the best state-of-the-art methods by 1.9-9.7% in terms of HitRatio@1 on the dataset DBP15K. ...
Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence ...
doi:10.24963/ijcai.2020/435
dblp:conf/ijcai/LaiZLH20
fatcat:yt6js3z3pbaolnd2jglzuqa2xy
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