Tootfinder

A kinetic model to simulate charge flow through an electrochemical half cell
Diego Veloza-Diaz (Institut f\"ur Physik, Johannes Gutenberg-Universit\"at Mainz, Germany), Friederike Schmid (Institut f\"ur Physik, Johannes Gutenberg-Universit\"at Mainz, Germany), Robinson Cortes-Huerto (Max Planck Institute for Polymer Research, Mainz, Germany), Pietro Ballone (Max Planck Institute for Polymer Research, Mainz, Germany), Nancy C. Forero-Martinez (Institut f\"ur Phy…

A kinetic model to simulate charge flow through an electrochemical half cell
A kinetic model of the electron transfer at the electrode / electrolyte solution interface is developed, implemented in a Monte Carlo framework, and applied to simulate this process in idealised systems consisting of the primitive model of electrolyte solutions limited by an impenetrable conducting surface. In the present implementation, a charged, spherical interface surrounding an equally spherical sample of electrolyte solution is introduced to model a single-electrode system, providing the …

Hybrid quantum tensor networks for aeroelastic applications
M. Lautaro Hickmann (Institute for AI Safety and Security, German Aerospace Center), Pedro Alves (Institute for AI Safety and Security, German Aerospace Center), David Quero (Institute of Aeroelasticity, German Aerospace Center), Friedhelm Schwenker (Institute of Neural Information Processing, University of Ulm, Ulm, Germany), Hans-Martin Rieser (Institute for AI Safety and Security, German Aerospace Center)

Hybrid quantum tensor networks for aeroelastic applications
We investigate the application of hybrid quantum tensor networks to aeroelastic problems, harnessing the power of Quantum Machine Learning (QML). By combining tensor networks with variational quantum circuits, we demonstrate the potential of QML to tackle complex time series classification and regression tasks. Our results showcase the ability of hybrid quantum tensor networks to achieve high accuracy in binary classification. Furthermore, we observe promising performance in regressing discrete…

Related to understanding firearms, "rifles" and hand guns tend to be rifled. Rifling is grooving that runs in a helical pattern down the barrel. When purchasing a firearm, it's important to check the rifling.
First check that the firearm is unloaded. Empty or remove the magazine, cycle the weapon. Next, check again that it's unloaded by looking both down the barrel and into the magazine. Now, shine a light down the barrel and look down it. In the absence of a light, you may be able to reflect light off your thumbnail.
Rifling should look as though it's drawn on with a sharp pencil, and the barrel should look otherwise completely smooth and clean. If the rifling looks like bumpy mountains, then the owner probably used corrosive ammo and didn't clean it enough. It will probably still shoot, but not at all accurately.
Both the rifling and the pin can be used in forensic analysis to match a bullet to a gun. I don't honestly know how accurate this is because a lot of forensic "science" is just made up stuff that relies on the CSI effect and doesn't actually work as advertised.
However, not all firearms are not all rifled. Shotguns are "smoothbore" firearms, meaning they lack rifling. It is not possible to perform forensic analysis of a smoothbore firearm. It *is* possible to check for powder on the hands of someone who has used a firearm within the last few days, but it's not possible to distinguish between firing inside and outside a range.
I've been gathering all kinds of tidbits like this, partially just out of curiosity and partially because I've been wanting to write a story about a revolutionary group fighting a modern authoritarian society. I'm always happy to learn other bits, if anyone has anything else I could throw in my narrative (whenever I finally get back to writing it).

Compare: A Framework for Scientific Comparisons
Moritz Staudinger, Wojciech Kusa, Matteo Cancellieri, David Pride, Petr Knoth, Allan Hanbury
https://arxiv.org/abs/2509.06412 htt…

Compare: A Framework for Scientific Comparisons
Navigating the vast and rapidly increasing sea of academic publications to identify institutional synergies, benchmark research contributions and pinpoint key research contributions has become an increasingly daunting task, especially with the current exponential increase in new publications. Existing tools provide useful overviews or single-document insights, but none supports structured, qualitative comparisons across institutions or publications. To address this, we demonstrate Compare, a …

Benchmarking Music Autotagging with MGPHot Expert Annotations vs. Generic Tag Datasets
Pedro Ramoneda, Pablo Alonso-Jimenez, Sergio Oramas, Xavier Serra, Dmitry Bogdanov
https://arxiv.org/abs/2509.06936

Benchmarking Music Autotagging with MGPHot Expert Annotations vs. Generic Tag Datasets
Music autotagging aims to automatically assign descriptive tags, such as genre, mood, or instrumentation, to audio recordings. Due to its challenges, diversity of semantic descriptions, and practical value in various applications, it has become a common downstream task for evaluating the performance of general-purpose music representations learned from audio data. We introduce a new benchmarking dataset based on the recently published MGPHot dataset, which includes expert musicological annotati…

Workflow for High-Fidelity Dynamic Analysis of Structures with Pile Foundation
Amin Pakzad, Pedro Arduino, Wenyang Zhang, Ertugrul Tacirouglu
https://arxiv.org/abs/2509.05675 ht…

Workflow for High-Fidelity Dynamic Analysis of Structures with Pile Foundation
The demand for high-fidelity numerical simulations in soil-structure interaction analysis is on the rise, yet a standardized workflow to guide the creation of such simulations remains elusive. This paper aims to bridge this gap by presenting a step-by-step guideline proposing a workflow for dynamic analysis of structures with pile foundations. The proposed workflow encompasses instructions on how to use Domain Reduction Method for loading, Perfectly Matched Layer elements for wave absorption, s…

Recoil of a driven tracer in a correlated medium
Marcin Piotr Pruszczyk, Davide Venturelli, Andrea Gambassi
https://arxiv.org/abs/2506.07895 https://

Recoil of a driven tracer in a correlated medium
We study the stochastic dynamics of a Brownian particle after it is suddenly released from a harmonic trap moving with constant velocity through a fluctuating correlated medium, described by a scalar Gaussian field with relaxational dynamics and in contact with a thermal bath. We show that, after the release, the particle exhibits recoil, i.e., it moves in the direction opposite to the drag. As expected, this effect vanishes if the field equilibrates instantaneously. The final value of the aver…

With every month that passes, it becomes more clear that quitting that cursed place was the right call:
«Peter Kyle said it was clear further action was needed to ensure the government-backed Alan Turing Institute met its full potential. […] Making clear that the Turing 2.0 strategy did not meet government requirements, Kyle indicated that he expected leadership changes at ATI.» 🍿
https://www.theguardian.com/technology/2025/jul/04/minister-demands-overhaul-of-uks-leading-ai-institute-alan-turing

Direct numerical simulation of complete transition to turbulence with a fluid at supercritical pressure
Pietro Carlo Boldini, Benjamin Bugeat, Jurriaan W. R. Peeters, Markus Kloker, Rene Pecnik
https://arxiv.org/abs/2506.06703

Direct numerical simulation of complete transition to turbulence with a fluid at supercritical pressure
The objective of this work is to investigate the unexplored laminar-to-turbulent transition of a heated flat-plate boundary layer with a fluid at supercritical pressure. Two temperature ranges are considered: a subcritical case, where the fluid remains entirely in the liquid-like regime, and a transcritical case, where the pseudo-critical (Widom) line is crossed and pseudo-boiling occurs. Fully compressible direct numerical simulations are used to study (i) the linear and nonlinear instabilitie…

Existence and nonexistence of commutativity gadgets for entangled CSPs
Eric Culf, Josse van Dobben de Bruyn, Matthijs Vernooij, Peter Zeman
https://arxiv.org/abs/2509.07835 http…

Existence and nonexistence of commutativity gadgets for entangled CSPs
Commutativity gadgets allow NP-hardness proofs for classical constraint satisfaction problems (CSPs) to be carried over to undecidability proofs for the corresponding entangled CSPs. This has been done, for instance, for NP-complete boolean CSPs and 3-colouring in the work of Culf and Mastel. For many CSPs over larger alphabets, including $k$-colouring when $k \geq 4$, it is not known whether or not commutativity gadgets exist, or if the entangled CSP is decidable. In this paper, we study commu…