Tootfinder

My partner asked for a last minute sign today. 3D printing to the rescue!
Made a sign for today… 3D printed letters, foam core, spray paint… then added a 3D printed handle.
#noKings #resist #resistFascism

You could 3D print a little sign holder handle...
➡️ https://www.printables.com/model/1248678-ergonomic-foam-board-holder-for-rallyprotest-signs

Ergonomic Foam Board Holder for Rally/Protest Signs by ＮＥＦＡＲＩＯＵＳ | Download free STL model | Printables.com
Ergonomic Foam Board Holder for Rally/Protest Signs | Download free 3D printable STL models

Failure modes of irregular ceramic foam under compression: Development of a new image based strut segmentation strategy
Vinit Vijay Deshpande, Romana Piat
https://arxiv.org/abs/2506.10860

Failure modes of irregular ceramic foam under compression: Development of a new image based strut segmentation strategy
The work investigates the failure modes of the microstructure of an irregular ceramic foam subjected to uniaxial compression loading. The foam material is manufactured using the direct foaming method and has polydispersed pores homogeneously distributed in the microstructure. The effective stress-strain curve and the macroscopic strength of the material differs significantly with the predictions of the Gibson-Ashby model that assumes a regular microstructure. The objective of this work is to de…

we need to return,,,

The Riemann problem for three-phase foam flow in porous media
Luis Fernando Lozano, Grigori Chapiro, Dan Marchesin
https://arxiv.org/abs/2506.08152 https:/…

The Riemann problem for three-phase foam flow in porous media
Gas injection in the context of the three-phase flow in porous media appears in applications such as Enhanced Oil Recovery, aquifer remediation, and carbon capture, utilization, and storage (CCUS). In general, this technique suffers from a difficulty related to excessive gas mobility, which can be circumvented by using foam. This study addresses the non-linear system of differential equations describing the three-phase foam flow based on Corey relative permeability functions. A major obstacle i…

#bloomscrolling am #klexenhaus, Beetrose "sea foam" und die gestreifte "carnival" legen los.

Graphene foam supports lab-grown cartilage for future osteoarthritis treatments
https://phys.org/news/2025-06-graphene-foam-lab-grown-cartilage.html

A novel visual data-based diagnostic approach for estimation of regime transition in pool boiling
Pranay Nirapure, Ayushman Singh, Srikanth Rangarajan, Bahgat Sammakia
https://arxiv.org/abs/2506.10832

A novel visual data-based diagnostic approach for estimation of regime transition in pool boiling
This study introduces a novel metric, the Index of Visual Similarity (IVS), to qualitatively characterize boiling heat transfer regimes using only visual data. The IVS is constructed by combining morphological similarity, through SIFT-based feature matching, with physical similarity, via vapor area estimation using Mask R-CNN. High-speed images of pool boiling on two distinct surfaces, polished copper and porous copper foam, are employed to demonstrate the generalizability of the approach. IVS …

This https://arxiv.org/abs/2506.00106 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Notes on a Gaussian-Based Distribution Algebra for the Non-linear Wave Equation of the Shift Vector in Quantum Foam
In these notes, a non-linear distributional algebra is developed, tailored to the geometry of Gaussian Quantum Foam. The construction is based on sequences of smooth Gaussian functions restricted to spacelike hypersurfaces in a sequence of homotopic and globally hyperbolic spacetimes, converging in the sense of distributions to Quantum Foam. A restricted subspace of Schwartz functions is defined, consisting of finite products of scaled Gaussians supported on the hypersurfaces. An associated dis…

Ultra-thin normal-shear-coupled metabarrier for low-frequency underwater sound insulation
V. F. Dal Poggetto, M. Miniaci
https://arxiv.org/abs/2506.09248 h…

Ultra-thin normal-shear-coupled metabarrier for low-frequency underwater sound insulation
Underwater noise pollution caused by anthropogenic activities, such as offshore wind farms, significantly affects marine life, hindering the intra- and inter-specific interactions of many aquatic species. A common strategy to mitigate these effects is to enclose the noise source within a physical barrier to achieve acceptable noise levels in the surrounding region. Underwater barriers typically achieve noise reduction through sound absorption based on locally resonant systems (e.g., foam and bu…

And then there's just the random stuff, like Guitar Hero guitars and drums and keyboards (in a bundle with the associated vintage consoles), an old MakerBot 3D Printer, some telepresence robots, and a fair bit of A/V equipment. Hopefully some folks out there will enjoy these, too!
https://mastodon.omnigro…

Lattice and Orientational Defects Mediate Collective Transport of Confluent Cells
Jiusi Zhang, Chung Wing Chan, Bo Li, Rui Zhang
https://arxiv.org/abs/2506.04068

Lattice and Orientational Defects Mediate Collective Transport of Confluent Cells
Confluent tissues are a type of foam-like biological active matter. There is a recent interest in using active nematic liquid crystal framework to understand confluent cells, where topological (orientational) defects are believed to play a crucial role. However, how to reconcile the physical picture of lattice defects in Voronoi polygons with that of orientational defects in the nematic field$-$particularly in the context of cellular transport$-$remains elusive. Here, we employ the Active Verte…