Tootfinder

Well that happened. Wollte eigentlich nur was nachschauen, kommt plötzlich ne #Fledermaus vorbeigeflogen. Drinnen. Nein, keine Fenster, muss irgendwo unbemerkt mit durch die Tür sein. Und da da nicht viel Verkehr ist kann das schon was her sein.
Nuja, prinzipiell nix ungewöhnliches hier. Kommt alle paar Jahre mal vor, dass sich wer verirrt. Fern halten¹, Tür auf, Fenster auf, die h…

Equivariant CM minimization for extremal manifolds
Gabriel Frey
https://arxiv.org/abs/2506.10679 https://arxiv.org/pdf/2506.10679

Equivariant CM minimization for extremal manifolds
We prove an equivariant version of the CM minimization conjecture for extremal Kähler manifolds. This involves proving that, given an equivariant punctured family of polarized varieties, a relative version of the CM degree is strictly minimized by an extremal filling. This generalizes a result by Hattori for cscK manifolds with discrete automorphism group by allowing automorphisms and extremal metrics. As a main tool, we extend results by Székelyhidi on asymptotic filtration Chow stability …

Finished the initial GPU based zero-crossing search block for libscopehal.
It's not used in anything yet as it's not an exact drop-in replacement API wise for the CPU version, but is massively faster (30x speedup for 50M points on 2080 Ti vs Xeon 6144) so I'll be gradually refactoring filters to take advantage of it,

The Difference between the Left and Right Invariant Extended Kalman Filter
Yixiao Ge, Giulio Delama, Martin Scheiber, Alessandro Fornasier, Pieter van Goor, Stephan Weiss, Robert Mahony
https://arxiv.org/abs/2507.04568

The Difference between the Left and Right Invariant Extended Kalman Filter
The extended Kalman filter (EKF) has been the industry standard for state estimation problems over the past sixty years. The Invariant Extended Kalman Filter (IEKF) is a recent development of the EKF for the class of group-affine systems on Lie groups that has shown superior performance for inertial navigation problems. The IEKF comes in two versions, left- and right- handed respectively, and there is a perception in the robotics community that these filters are different and one should choose …

Ich bin ja ohnehin kein großer #SharePoint-Freund, aber es gibt eine Sache, die mich mit Abstand am meisten nervt: Die Zeit, die vergehen kann, bevor eine Einstellung auch wirklich in der Oberfläche wirksam wird.
Ich hab das Label für einen Filter angepasst und warte jetzt seit ~15 Minuten, dass das jetzt auch entsprechend angezeigt wird...

Oh, der Wiener Fassadenleser Klaus-Jürgen Bauer ist verstorben.
https://shop.falter.at/sprechende-fassaden.html

Sprechende Fassaden
Sprechende Fassaden von Klaus-Jürgen Bauer, Charlotte Schwarz (Fotos) ✓ Über 1,5 Mio. Bücher im faltershop bestellen ✓ Versandkostenfrei ab € 35,–

Frequency Domain Design of a Reset-Based Filter: An Add-On Nonlinear Filter for Industrial Motion Control
S. Ali Hosseini, Fabian R. Quinten, Luke F. van Eijk, Dragan Kostic, S. Hassan HosseinNia
https://arxiv.org/abs/2507.01491

Frequency Domain Design of a Reset-Based Filter: An Add-On Nonlinear Filter for Industrial Motion Control
This study introduces a modified version of the Constant-in-Gain, Lead-in-Phase (CgLp) filter, which incorporates a feedthrough term in the First-Order Reset Element (FORE) to reduce the undesirable nonlinearities and achieve an almost constant gain across all frequencies. A backward calculation approach is proposed to derive the additional parameter introduced by the feedthrough term, enabling designers to easily tune the filter to generate the required phase. The paper also presents an add-on…

Reflection-less filter for superconducting quantum circuits
Jessica Kedziora, Eric Q. Bui, Alec Yen, Andres E. Lombo, Kaidong Peng, Terence J. Weir, Kevin P. O'Brien
https://arxiv.org/abs/2506.20645

Reflection-less filter for superconducting quantum circuits
Protecting superconducting quantum circuits from non-ideal return loss, including out-of-band circulator behavior and enhancing the performance of broadband quantum-limited amplifiers can be accomplished using a superconducting version of a special class of microwave filters known as reflection-less filters. These filters can simultaneously permit low pass band loss to preserve quantum efficiency and broad band reflection-less characteristics in the stop and pass bands. The filter also suppress…

#Rhein - Die anhaltende Hitzeperiode belastet nicht nur die Logistikbranche, sondern auch das #Ökosystem im Fluss erheblich. #Hitze

„Kein Schiff mehr, das voll beladen ist“ – Trockenheit im Rhein bringt Steine zum Vorschein
Die Hitze in Deutschland hat große Auswirkungen auf den Rhein. Niedrigwasserstände bedrohen die Schifffahrt und das Ökosystem. Die kommenden Tage verheißen keine Besserung.

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