Tootfinder

Viscoelasticity of biomimetic scale beams from trapped complex fluids
Pranta Rahman Sarkar, Outi Tammisola, Ranajay Ghosh
https://arxiv.org/abs/2505.21760 …

Viscoelasticity of biomimetic scale beams from trapped complex fluids
We investigate the nonlinear viscoelastic behavior of a biomimetic scale-covered beam in which shear-dependent complex fluids are trapped between overlapping scales under bending loads. These fluids mimic biological mucus and slime layers commonly enveloping the skins found in nature. An energy-based analytical model is developed to quantify the interplay between substrate elasticity, scale geometry, and fluid rheology at multiple length scales. Constant strain rate and oscillatory bending are …

Accelerating Matrix Multiplication: A Performance Comparison Between Multi-Core CPU and GPU
Mufakir Qamar Ansari (The University of Toledo, Toledo, OH, USA), Mudabir Qamar Ansari (Lamar University, Beaumont, TX, USA)
https://arxiv.org/abs/2507.19723

Accelerating Matrix Multiplication: A Performance Comparison Between Multi-Core CPU and GPU
Matrix multiplication is a foundational operation in scientific computing and machine learning, yet its computational complexity makes it a significant bottleneck for large-scale applications. The shift to parallel architectures, primarily multi-core CPUs and many-core GPUs, is the established solution, and these systems are now ubiquitous from datacenters to consumer laptops. This paper presents a direct, empirical performance analysis of matrix multiplication on a modern, consumer-grade heter…

A gravitational spin-orbit interaction in Poincar\'e gauge theory
Sebastian Bahamonde, Jorge Gigante Valcarcel
https://arxiv.org/abs/2508.20035 https://

A gravitational spin-orbit interaction in Poincaré gauge theory
We show a gravitational spin-orbit interaction that can potentially modify the space-time geometry naturally emerges in the framework of Poincaré gauge theory. For this purpose, we derive the field equations of a particular model with cubic order invariants and demonstrate the existence of analytical solutions which display an interaction between the intrinsic and extrinsic angular momentum parameters in the gravitational action, in analogy to the spin-orbit interaction arising from atomic and…

Effect of permeability heterogeneity on reactive convective dissolution
Rima Benhammadi, Anne De Wit, Juan J. Hidalgo
https://arxiv.org/abs/2507.20610 https://

Effect of permeability heterogeneity on reactive convective dissolution
The impact of permeability heterogeneity on reactive buoyancy-driven convective dissolution is analyzed numerically in the case of a bimolecular A+B$\to$C reaction across varying Rayleigh numbers. The convective dynamics is compared in homogeneous, horizontally stratified, vertically stratified, and log-normally distributed permeability fields. Key variables, such as the total amount of product, mixing length, front position and width, reaction and scalar dissipation rates, and dissolution flux…

This https://arxiv.org/abs/2503.18782 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Adhesion differentials control the rheology of biomimetic emulsions
Animal morphogenesis involves complex tissue deformation processes, which require tight control over tissue rheology. Yet, it remains insufficiently understood how tissue rheology results from the interplay between cellular packing and cellular forces, such as cortical tension, cell pressure, and cell-cell adhesion. Here, we follow a biomimetic approach to study this interplay, focusing on the cellular adhesion hierarchy. We mimic adhesive cells with oil droplets whose adhesion strength and spe…

Racing to Idle: Energy Efficiency of Matrix Multiplication on Heterogeneous CPU and GPU Architectures
Mufakir Qamar Ansari (Department of Electrical Engineering and Computer Science, The University of Toledo, Toledo, OH, USA), Mudabir Qamar Ansari (Department of School of Accounting and Information Systems, Lamar University, Beaumont, TX, USA)
https://

Racing to Idle: Energy Efficiency of Matrix Multiplication on Heterogeneous CPU and GPU Architectures
The paradigm shift towards multi-core and heterogeneous computing, driven by the fundamental power and thermal limits of single-core processors, has established energy efficiency as a first-class design constraint in high-performance computing (HPC). Heterogeneous systems, integrating traditional multi-core CPUs with specialized accelerators like discrete (dGPU) and integrated (iGPU) graphics processing units, offer a compelling path to navigating the trade-offs between performance and power. H…

Wer hat entschieden, dass der Toaster plötzlich multitaskingfähig sein muss, statt zu toasten? @… benennt den Feature-Wahnsinn: Geräte, die mehr Abstürze als Eleganz produzieren, nerven statt zu dienen. Eine simple, benutzerfreundliche Bedienung wäre echtes Zukunfts-Design – statt digitaler Nutzer-Bullshit-Bingo.

Dit is al een tijdje aan de gang. Trump-hardliners willen machtswissel EU met hulp van Europese bondgenoten - #trump #eu

Trump-hardliners willen machtswissel EU met hulp van Europese bondgenoten
Europese en Amerikaanse conservatieve denktanks slaan de handen ineen. Ze willen Europa van binnenuit 'veranderen en ontmantelen'.

"Ein bisschen Kindergarten ist Bloghausen ja immer wieder mal," schreibt Thomas @… Recht hat er. Die sich oft selbst sehr lobende #Blogosphere benimmt sich an manchen Stellen nicht besser als die viel gescholtenen sozialen Medien. Auch hier fehlt es leide…

Zur Tonlage in manchen deutschen Blogs und Kommentarspalten
Es wird gestritten, polemisiert, geblockt: Bei all der Euphorie um Blogvielfalt bleibt der Ton oft auf der Strecke und ist oft nicht besser als in den sozialen Medien. Wir brauchen wieder mehr Resp…