Zobrazeno 1 - 10
of 2 549
pro vyhledávání: '"Mitchell, Kevin A."'
Autor:
Brown, Eric, Mitchell, Kevin A., Nasto, Alice, Athanassiadis, Athanasios, Jaeger, Heinrich M.
Stress-strain relations for random packings of entangling chains under triaxial compression can exhibit strain stiffening and sustain stresses several orders-of-magnitude beyond typical granular materials. X-ray tomography reveals the transition to t
Externí odkaz:
http://arxiv.org/abs/2408.09041
Autor:
Kaul, Chaitanya, Mitchell, Kevin J., Kassem, Khaled, Tragakis, Athanasios, Kapitany, Valentin, Starshynov, Ilya, Villa, Federica, Murray-Smith, Roderick, Faccio, Daniele
In the field of detection and ranging, multiple complementary sensing modalities may be used to enrich the information obtained from a dynamic scene. One application of this sensor fusion is in public security and surveillance, whose efficacy and pri
Externí odkaz:
http://arxiv.org/abs/2408.00816
Autor:
Mitchell, Kevin J., Cheney, Nick
How does the genome encode the form of the organism? What is the nature of this genomic code? Common metaphors, such as a blueprint or program, fail to capture the complex, indirect, and evolutionarily dynamic relationship between the genome and orga
Externí odkaz:
http://arxiv.org/abs/2407.15908
Autor:
Mitchell, Kevin J., Gradauskas, Vytautas, Radford, Jack, Starshynov, Ilya, Nerenberg, Samuel, Wright, Ewan M., Faccio, Daniele
The guiding and transport of energy, for example of electromagnetic waves underpins many technologies that have shaped modern society, ranging from long distance optical fibre telecommunications to on-chip optical processors. Traditionally, a mechani
Externí odkaz:
http://arxiv.org/abs/2402.03064
Autor:
Memarian, Fereshteh L., Hammar, Derek, Sabbir, Md Mainul Hasan, Elias, Mark, Mitchell, Kevin A., Hirst, Linda
This work examines self-mixing in active nematics, a class of fluids in which mobile topological defects drive chaotic flows in a system comprised of biological filaments and molecular motors. We present experiments that demonstrate how geometrical c
Externí odkaz:
http://arxiv.org/abs/2401.04363
Autor:
Mitchell, Kevin A., Sabbir, Md Mainul Hasan, Geumhan, Kevin, Smith, Spencer A., Klein, Brandon, Beller, Daniel A.
Active nematics are an important new paradigm in soft condensed matter systems. They consist of rod-like components with an internal driving force pushing them out of equilibrium. The resulting fluid motion exhibits chaotic advection, in which a smal
Externí odkaz:
http://arxiv.org/abs/2308.08657
Autor:
Mitchell, Kevin, Kassem, Khaled, Kaul, Chaitanya, Kapitany, Valentin, Binner, Philip, Ramsay, Andrew, Murray-Smith, Roderick, Faccio, Daniele
For widespread adoption, public security and surveillance systems must be accurate, portable, compact, and real-time, without impeding the privacy of the individuals being observed. Current systems broadly fall into two categories -- image-based whic
Externí odkaz:
http://arxiv.org/abs/2302.14625
Autor:
Berman, Simon A., Ferguson, Kyle S., Bizzak, Nathaniel, Solomon, Thomas H., Mitchell, Kevin A.
Publikováno v:
Front. Phys. 9, 816663 (2022)
We investigate a model for the dynamics of ellipsoidal microswimmers in an externally imposed, laminar Kolmogorov flow. Through a phase-space analysis of the dynamics without noise, we find that swimmers favor either cross-stream or rotational drift,
Externí odkaz:
http://arxiv.org/abs/2111.09268
Autor:
Berman, Simon A., Mitchell, Kevin A.
Publikováno v:
Phys. Rev. Fluids 7, 014501 (2022)
We theoretically investigate the effect of random fluctuations on the motion of elongated microswimmers near hydrodynamic transport barriers in externally-driven fluid flows. Focusing on the two-dimensional hyperbolic flow, we consider the effects of
Externí odkaz:
http://arxiv.org/abs/2108.10488
Active fluids, composed of individual self-propelled agents, can generate complex large-scale coherent flows. A particularly important laboratory realization of such an active fluid is a system composed of microtubules, aligned in a quasi-two-dimensi
Externí odkaz:
http://arxiv.org/abs/2105.11673