AI Article Synopsis
- The study explores how bidisperse soft core disks jam under different protocols, focusing on cooling, compression, and shearing effects.
- Results show that initial particle clustering significantly affects jamming packing fractions, with more clustering leading to higher values, while shearing tends to reduce this variation.
- The research concludes that shear-induced jamming represents a distinct critical point, connecting concepts of glassy behavior, rigidity, and jamming, and offers insights relevant to recent experimental findings.
Article Abstract
The jamming of bidisperse soft core disks is considered, using a variety of different protocols to produce the jammed state. In agreement with other works, we find that cooling and compression can lead to a broad range of jamming packing fractions ϕ{J}, depending on cooling rate and initial configuration; the larger the degree of big particle clustering in the initial configuration, the larger will be the value of ϕ{J}. In contrast, we find that shearing disrupts particle clustering, leading to a much narrower range of ϕ{J} as the shear strain rate varies. In the limit of vanishingly small shear strain rate, we find a unique nontrivial value for the jamming density that is independent of the initial system configuration. We conclude that shear driven jamming is a unique and well-defined critical point in the space of shear driven steady states. We clarify the relation between glassy behavior, rigidity, and jamming in such systems and relate our results to recent experiments.
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| http://dx.doi.org/10.1103/PhysRevE.83.031307 | DOI Listing |
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Article Synopsis
- Scientists are studying how tiny structures in the kidneys form during development, especially how they branch out and work together.
- They discovered that as these structures grow, they get packed tightly together, which can change how the cells make decisions.
- The researchers used experiments and math to understand this packing and found that it affects how the kidneys develop over time in mice and might help in creating new tissues for medical purposes.
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