scholarly journals Globule–stretch transition of a self-attracting chain in the repulsive active particle bath

2019 ◽  
Vol 21 (8) ◽  
pp. 4487-4493 ◽  
Author(s):  
Yi-qi Xia ◽  
Wen-de Tian ◽  
Kang Chen ◽  
Yu-qiang Ma
Keyword(s):  
Active Particle ◽  
Active Particles

The globule(G)–stretch(S) and stretch–globule transitions of a self-attracting chain induced by active particles.

Active Particle Diffusion in Convection Roll Arrays

2021 ◽  
Author(s):  
Pulak Kumar Ghosh ◽  
Fabio Marchesoni ◽  
Yunyun Li ◽  
Franco Nori
Keyword(s):  
Active Particle ◽  
Particle Diffusion ◽  
Active Matter ◽  
Active Particles ◽  
Convection Roll ◽  
Small Scales

Undesired advection effects are unavoidable in most nano-technological applications involving active matter. However, it is conceivable to govern the transport of active particles at the small scales by suitably tuning...

Inelastic cross sections of nucleons and π mesons in carbon and lead near 100 GeV

1968 ◽  
Vol 46 (10) ◽  
pp. S694-S696 ◽  
Author(s):  
A. V. Alakoz ◽  
V. N. Bolotov ◽  
M. I. Devishev ◽  
L. F. Klimanova ◽  
A. P. Shmeleva
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Cosmic Ray ◽  
High Energy ◽  
Active Particle ◽  
Particle Interactions ◽  
Active Particles ◽  
The Cross

An experiment to measure the cross section for high-energy cosmic-ray neutrons and charged nuclear-active particle interactions with Pb and C nuclei has been carried out at an altitude of 2 000 m. Large spark chambers were used in a detector which selected neutrons and charged nuclear-active particles in the region of 100 GeV. The results are σπ(nPb) = (1.65 ± 0.17) barn, σπ(nC) = (0.204 ± 0.02) barn, σπ(πPb) = (1.53 ± 0.17) barn, σπ(πC) = (0.168 ± 0.017) barn.

scholarly journals Pinning dislocations in colloidal crystals with active particles that seek stacking faults

Soft Matter ◽  
2020 ◽  
Vol 16 (17) ◽  
pp. 4182-4191
Author(s):  
Bryan VanSaders ◽  
Sharon C. Glotzer
Keyword(s):  
Stacking Faults ◽  
Colloidal Crystals ◽  
Active Particle ◽  
Host Crystal ◽  
Active Particles ◽  
Dislocation Defects

By designing the shape of an active particle, its transport through a dense crystal can be tailored, as well as its interaction with dislocation defects present in the host crystal.

scholarly journals Force moments of an active particle in a complex fluid

2017 ◽  
Vol 829 ◽  
Author(s):  
Gwynn J. Elfring
Keyword(s):  
Hydrodynamic Force ◽  
Newtonian Fluids ◽  
Active Particle ◽  
Reciprocal Theorem ◽  
Background Flow ◽  
Weakly Nonlinear ◽  
Active Particles ◽  
Special Cases ◽  
Complex Fluid

A generalized reciprocal theorem is formulated for the motion and hydrodynamic force moments of an active particle in an arbitrary background flow of a (weakly nonlinear) complex fluid. This formalism includes as special cases a number of previous calculations of the motion of both passive and active particles in Newtonian and non-Newtonian fluids.

scholarly journals Delayed feedback control of active particles: a controlled journey towards the destination

2019 ◽  
Vol 21 (25) ◽  
pp. 13776-13787 ◽  
Author(s):  
S. M. J. Khadem ◽  
Sabine H. L. Klapp
Keyword(s):  
Feedback Control ◽  
Real Time ◽  
Delayed Feedback ◽  
Particle Orientation ◽  
Delayed Feedback Control ◽  
Active Particle ◽  
Real Time Monitoring ◽  
Active Particles

Orientation of an active particle could be estimated by comparing its delayed position with the actual one. Therefore, steering process does not require any real-time monitoring of the particle orientation.

scholarly journals Nonhomogeneous random walks systems on ℤ

2010 ◽  
Vol 47 (02) ◽  
pp. 562-571
Author(s):  
Elcio Lebensztayn ◽  
Fábio Prates Machado ◽  
Mauricio Zuluaga Martinez
Keyword(s):  
Random Walk ◽  
Random Walks ◽  
Nearest Neighbor ◽  
The Other ◽  
Active Particle ◽  
Positive Probability ◽  
Small Probability ◽  
Active Particles ◽  
Other Hand ◽  
The Right

We consider a random walks system on ℤ in which each active particle performs a nearest-neighbor random walk and activates all inactive particles it encounters. The movement of an active particle stops when it reaches a certain number of jumps without activating any particle. We prove that if the process relies on efficient particles (i.e. those particles with a small probability of jumping to the left) being placed strategically on ℤ, then it might survive, having active particles at any time with positive probability. On the other hand, we may construct a process that dies out eventually almost surely, even if it relies on efficient particles. That is, we discuss what happens if particles are initially placed very far away from each other or if their probability of jumping to the right tends to 1 but not fast enough.

scholarly journals Nonhomogeneous random walks systems on ℤ

2010 ◽  
Vol 47 (2) ◽  
pp. 562-571 ◽  
Author(s):  
Elcio Lebensztayn ◽  
Fábio Prates Machado ◽  
Mauricio Zuluaga Martinez
Keyword(s):  
Random Walk ◽  
Random Walks ◽  
Nearest Neighbor ◽  
The Other ◽  
Active Particle ◽  
Positive Probability ◽  
Small Probability ◽  
Active Particles ◽  
Other Hand ◽  
The Right

We consider a random walks system on ℤ in which each active particle performs a nearest-neighbor random walk and activates all inactive particles it encounters. The movement of an active particle stops when it reaches a certain number of jumps without activating any particle. We prove that if the process relies on efficient particles (i.e. those particles with a small probability of jumping to the left) being placed strategically on ℤ, then it might survive, having active particles at any time with positive probability. On the other hand, we may construct a process that dies out eventually almost surely, even if it relies on efficient particles. That is, we discuss what happens if particles are initially placed very far away from each other or if their probability of jumping to the right tends to 1 but not fast enough.

Programmable and reprocessable multifunctional elastomeric sheets for soft origami robots

2021 ◽  
Vol 6 (53) ◽  
pp. eabd6107
Author(s):  
Shuo Zhang ◽  
Xingxing Ke ◽  
Qin Jiang ◽  
Han Ding ◽  
Zhigang Wu
Keyword(s):  
Laser Scanning ◽  
Active Particle ◽  
Human Machine Interaction ◽  
Active Particles ◽  
Intelligent Home ◽  
Simultaneous Integration ◽  
Soft Ferromagnetic ◽  
Controllable Deformation ◽  
Home Technology ◽  
Machine Interaction

Tunable, soft, and multifunctional robots are contributing to developments in medical and rehabilitative robotics, human-machine interaction, and intelligent home technology. A key aspect of soft robot fabrication is the ability to use flexible and efficient schemes to enable the seamless and simultaneous integration of configurable structures. Here, we report a strategy for programming design features and functions in elastomeric surfaces. We selectively modified these elastomeric surfaces via laser scanning and then penetrated them with an active particle–infused solvent to enable controllable deformation, folding, and functionality integration. The functionality of the elastomers can be erased by a solvent retreatment and reprocessed by repeating the active particle infusion process. We established a platform technique for fabricating programmable and reprocessable elastomeric sheets by varying detailed morphology patterns and active particles. We used this technique to produce functional soft ferromagnetic origami robots with seamlessly integrated structures and various active functions, such as robots that mimic flowers with petals bent at different angles and with different curvatures, low-friction swimming robots, multimode locomotion carriers with gradient-stiffness claws for protecting and delivering objects, and frog-like robots with adaptive switchable coloration that responds to external thermal and optical stimuli.

Organic solvent-assisted free-standing Li2MnO3·LiNi1/3Co1/3Mn1/3O2 on 3D graphene as a high energy density cathode

2015 ◽  
Vol 51 (91) ◽  
pp. 16381-16384 ◽  
Author(s):  
Yuelong Xin ◽  
Liya Qi ◽  
Yiwei Zhang ◽  
Zicheng Zuo ◽  
Henghui Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
Organic Solvent ◽  
Freeze Drying ◽  
Large Scale ◽  
High Energy ◽  
High Energy Density ◽  
Free Standing ◽  
3D Graphene ◽  
Active Particles

A novel organic solvent-assisted freeze-drying pathway, which can effectively protect and uniformly distribute active particles, is developed to fabricate a free-standing Li2MnO3·LiNi1/3Co1/3Mn1/3O2 (LR)/rGO electrode on a large scale.

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