Tootfinder

Rheology of bidisperse suspensions at the colloidal-to-granular transition
Xuan Li, John R. Royer, Christopher Ness
https://arxiv.org/abs/2506.05571 https:…

Rheology of bidisperse suspensions at the colloidal-to-granular transition
We use particle-based simulation to study the rheology of dense suspensions comprising mixtures of small colloids and larger grains, which exhibit shear thinning at low shear rates and shear thickening at high shear rates. By systematically varying the volume fraction of the two species, we demonstrate a monotonic increase in viscosity when grains are added to colloids, but, conversely, a nonmonotonic response in both the viscosity and shear thickening onset when colloids are added to grains. B…

What Comes After Harm? Mapping Reparative Actions in AI through Justice Frameworks
Sijia Xiao, Haodi Zou, Alice Qian Zhang, Deepak Kumar, Hong Shen, Jason Hong, Motahhare Eslami
https://arxiv.org/abs/2506.05687

What Comes After Harm? Mapping Reparative Actions in AI through Justice Frameworks
As Artificial Intelligence (AI) systems are integrated into more aspects of society, they offer new capabilities but also cause a range of harms that are drawing increasing scrutiny. A large body of work in the Responsible AI community has focused on identifying and auditing these harms. However, much less is understood about what happens after harm occurs: what constitutes reparation, who initiates it, and how effective these reparations are. In this paper, we develop a taxonomy of AI harm rep…

Prepared, which offers AI tools to modernize emergency response systems, raised a $80M Series C led by General Catalyst, bringing its total funding to ~$135.2M (Duncan Riley/SiliconANGLE)
https://siliconangle.com/2025/05/30/pr…

Prepared raises $80M to expand AI-powered emergency response platform - SiliconANGLE
Prepared raises $80M to expand AI-powered emergency response platform - SiliconANGLE

Microsoft announces new Windows changes in response to the DMA for EEA users, including Edge not prompting users to set it as the default unless it is opened (Richard Lawler/The Verge)
https://www.theverge.com/news/678350/microsoft-dma-windows-10-11-bing…

Microsoft will finally stop bugging Windows users about Edge — but only in Europe
Microsoft’s changes to Windows 10 and 11 in countries covered by the EU’s Digital Markets Act will make Bing less annoying and let you ditch the Microsoft Store

Modelling the evolution of flow-induced anisotropy of concentrated suspensions
Pappu Acharya, Romain Mari
https://arxiv.org/abs/2506.05222 https://

Modelling the evolution of flow-induced anisotropy of concentrated suspensions
Suspensions, which exhibit complex behaviors such as shear thickening, thinning, and jamming, are prevalent in nature and industry. However, predicting the mechanical properties of concentrated suspensions, in both steady state and the transient regime, remains a significant challenge, impacting product quality and process efficiency. In this study, we focus on developing a robust theoretical framework to explain how flow history governs the anisotropy of mechanical responses in suspensions of …

Frictional Contact Network in Dense Suspension Flow
Shweta Sharma, Abhishek Sharma, Abhinendra Singh
https://arxiv.org/abs/2505.22747 https://

Frictional Contact Network in Dense Suspension Flow
Dense particulate suspensions often exhibit a dramatic increase in viscosity in response to external deformation. This shear thickening behavior has been related to a transition from lubricated, unconstrained pairwise motion to a frictional contact network (FCN) at high stresses. Here, we study the characteristics of the FCN formed during shear thickening to investigate the role of constraints, emphasizing the impact of resistance to gear-like rolling. We contrast the FCN formed by sliding fric…