Tootfinder

Apples KI-Trick: Wie ein 20-Milliarden-Parameter-Modell aufs iPhone passt
Lokale KI braucht viel Arbeitsspeicher. Und genau der ist auf dem iPhone rar. Apple bedient sich deshalb bei seinem neuen KI-Modell eines besonderen Tricks.

Apples KI-Trick: Wie ein 20-Milliarden-Parameter-Modell aufs iPhone passt
Lokale KI braucht viel Arbeitsspeicher. Und genau der ist auf dem iPhone rar. Apple bedient sich deshalb bei seinem neuen KI-Modell eines besonderen Tricks.

Electrolyte flows under magnetic fields: Manning-like counterion condensation in one dimension
Yoav Tsori, Hannes Uecker
https://arxiv.org/abs/2605.18076 https://arxiv.org/pdf/2605.18076 https://arxiv.org/html/2605.18076
arXiv:2605.18076v1 Announce Type: new
Abstract: We present a theoretical framework for unidirectional electromagnetohydrodynamic flow of dilute electrolytes under perpendicular magnetic fields. Starting from the Navier--Stokes equation coupled with the Poisson--Nernst--Planck formulation, we show that the problem admits a sequential decoupling: the Stokes equation is solved first to obtain the velocity profile, which defines a hydrodynamic potential entering the Nernst--Planck description of ions. This Lorentz-force-induced potential competes with electrostatic attraction and significantly alters ionic distributions. We analyze this mechanism in two canonical geometries. In planar Couette shear, it produces a Manning--Oosawa-like condensation transition in one dimension, a phenomenon absent in classical electrostatics. We derive an eigenvalue equation predicting a sharp threshold between counterion enrichment and depletion at the charged wall. In cylindrical Taylor--Couette flow, the same effect shifts the classical Manning criterion by a magnetic parameter, enabling tunable control of condensation. These findings extend Manning--Oosawa phenomenology to driven, non-equilibrium systems and provide a basis for magnetic manipulation of screening in electrolytes, with implications for microfluidics, electrochemical systems, and nonlinear boundary-value theory.
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New part coming soon for my #HamRadio Single-paddle #MorseCode key system. This is a base that you can glue magnets into, for using the key on a steel block like the commonly-used jeweler's blocks. Like the rest of my system, it is parametric, designed to be easily modified in FreeCAD. The…

Numismatist alert!
I just found this very old penny in my pocket because it *stuck to my headphone case's magnetic clasp*
Wait, you say. Isn't ol' Abe supposed to be copper (or copper and zinc)?
Apparently not in 1943!

SF-Flow: Sound field magnitude estimation via flow matching guided by sparse measurements
Ege Erdem, Shoichi Koyama, Tomohiko Nakamura, Orchisama Das, Zoran Cvetkovi\'c
https://arxiv.org/abs/2605.10398 https://arxiv.org/pdf/2605.10398 https://arxiv.org/html/2605.10398
arXiv:2605.10398v1 Announce Type: new
Abstract: Reconstructing a 3D sound field from sparse microphone measurements is a fundamental yet ill-posed problem, which we address through Acoustic Transfer Function (ATF) magnitude estimation. ATF magnitude encapsulates key perceptual and acoustic properties of a physical space with applications in room characterization and correction. Although recent generative paradigms such as Flow Matching (FM) have achieved state-of-the-art performance in speech and music generation, their potential in spatial audio remains underexplored. We propose a novel framework for 3D ATF magnitude reconstruction as a guided generation task, with a 3D U-Net conditioned by a permutation-invariant set encoder. This architecture enables reconstruction from an arbitrary number of sparse inputs while leveraging the stable and efficient training properties of FM. Experimental results demonstrate that SF-Flow achieves accurate reconstruction up to \SI{1}{kHz}, trains substantially faster than the autoencoder baseline, and improves significantly with dataset size.
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headed to the post office to mail a couple mix tapes to ypsilanti and rockingham (va)

Multipartite reference-frame-independent quantum cryptographic communication
Donghwa Lee, Kyujin Shin, Hyang-Tag Lim, Yosep Kim, Yong-Su Kim
https://arxiv.org/abs/2606.12284 https://arxiv.org/pdf/2606.12284 https://arxiv.org/html/2606.12284
arXiv:2606.12284v1 Announce Type: new
Abstract: Reference frame mismatch among communication parties introduces errors in quantum cryptographic protocols. As the number of participants increases, aligning reference frames becomes increasingly difficult, complicating multipartite quantum cryptographic implementations. Here, we theoretically and experimentally investigate multipartite reference-frame-independent (RFI) quantum cryptographic communication using Greenberger-Horne-Zeilinger (GHZ) states. We generalize the bipartite RFI security parameter $C$ to an $N$-party parameter $C_N$ and derive the asymptotic secret key rate expressed solely in terms of experimentally accessible quantities. We analyze the key rate under global and local depolarizing noise models and find that increasing the number of parties $N$ enhances robustness against global depolarizing noise while increasing vulnerability to local channel noise. We also present a proof-of-principle experimental demonstration of four-party RFI quantum cryptographic communication using four-photon GHZ states, confirming the reference-frame invariance of both the $C_4$ parameter and the secret key rate under various reference frame rotations.
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these tapes are ready to go (to ann arbor, ann arbor, chicagoland, and denton texas) as soon as i print the mailing labels
this makes 250 tapes mailed out (so far!)

Magnetic resonance imaging assessment of the suitability and consistency of radiotherapy treatment positioning achieved using intra-oral stents
Tanya Kairn (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia), Philip Chan (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Benjamin Chua (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Susannah Cleland (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Jodi Dawes (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia), Lizbeth Kenny (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Charles Y. Lin (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), William R. McDowall (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia), Tania Poroa (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Scott B. Crowe (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia)
https://arxiv.org/abs/2606.25210 https://arxiv.org/pdf/2606.25210 https://arxiv.org/html/2606.25210
arXiv:2606.25210v1 Announce Type: new
Abstract: As head-and-neck radiotherapy treatments grow more complex and precise, it becomes increasingly important to assess the anatomical separations that can be achieved using intra-oral stents. A series of twenty T2-weighted turbo spin echo magnetic resonance images (MRI) were acquired of one healthy participant, with a range of different wax and 3D printed intra-oral stents in situ. The resulting measurements showed that a 3D printed modular stent containing hard polylactic acid (PLA) and flexible thermoplastic polyurethane (TPU) components made the largest and most reproducible separation between the cheeks (70.8 /- 0.3 mm), two hard PLA stents designed to exactly fit the participant's teeth produced the poorest positioning reproducibility (standard deviations of up to 3 mm between a range of landmarks measured in repeated images). Most stents were described as ``comfortable'' although the wax stents left small pieces of wax attached to the teeth after use. This MRI based comparison demonstrated that the materials and designs used for intra-oral stents can have substantial effects on the level of anatomical separation and positioning reproducibility that they produce.
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