Tootfinder

Landesweit Luftalarm in der Ukraine
Russland hat erneut mit Dutzenden Kampfdrohnen Ziele in der Ukraine angegriffen. In der ostukrainischen Stadt Tschuhujiw wurden bei einem Drohnenangriff mindestens drei Menschen verletzt, darunter ein zwölfjähriger Junge, wie Militärgouverneur Oleh Synjehubow bei Telegram mitteilte. In der Stadt Kupjansk seien zudem zwei Menschen verletzt worden.
Auch aus der Hau…
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Angst und Verzweiflung in der Ukraine nach massiven russischen Angriffen
Kaum hatten Putin und Trump ihr Telefonat beendet, startete Russland eine Angriffswelle auf Kiew, wie es sie noch nicht gegeben hat. Die Menschen in der Stadt sind am Tag danach zermürbt - und sie beschleicht eine bestimmte Angst.

First Contact: Data-driven Friction-Stir Process Control
James Koch, Ethan King, WoongJo Choi, Megan Ebers, David Garcia, Ken Ross, Keerti Kappagantula
https://arxiv.org/abs/2507.03177

First Contact: Data-driven Friction-Stir Process Control
This study validates the use of Neural Lumped Parameter Differential Equations for open-loop setpoint control of the plunge sequence in Friction Stir Processing (FSP). The approach integrates a data-driven framework with classical heat transfer techniques to predict tool temperatures, informing control strategies. By utilizing a trained Neural Lumped Parameter Differential Equation model, we translate theoretical predictions into practical set-point control, facilitating rapid attainment of des…

Laser-Synthesized Amorphous PdSe$_{\mathrm{2-x}}$ Nanoparticles: A Defect-Rich Platform for High-Efficiency SERS, Photocatalysis, and Photothermal Conversion
Andrei Ushkov, Nadezhda Belozerova, Dmitriy Dyubo, Ilya Martynov, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Sergey V. Bazhenov, Roman I. Romanov, Ivan Kruglov, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov

Laser-Synthesized Amorphous PdSe$_{\mathrm{2-x}}$ Nanoparticles: A Defect-Rich Platform for High-Efficiency SERS, Photocatalysis, and Photothermal Conversion
The control of material properties at the atomic scale remains a central challenge in materials science. Transition metal dichalcogenides (TMDCs) offer remarkable electronic and optical properties, but their functionality is largely dictated by their stable crystalline phases. Here we demonstrate a single-step, ligand-free strategy using femtosecond laser ablation in liquid to transform crystalline, stoichiometric palladium diselenide (PdSe$_{\mathrm{2}}$) into highly stable, amorphous, and non…

🇺🇦 #NowPlaying on #KEXP's #DriveTime
BADBADNOTGOOD & V.C.R:
🎵 Found a Light (Beale Street)
#BADBADNOTGOOD #VCR
https://badbadnotgoodofficial.bandcamp.com/track/found-a-light-beale-street
https://open.spotify.com/track/09Btkoj4YIm36KVJqomiCE
🎶 show playlist 👇
https://open.spotify.com/playlist/2KW4FxNKVGpVTgIJYolnNY
🎶 KEXP playlist 👇
https://open.spotify.com/playlist/6VNALrOa3gWbk794YuIrwg

Kardar--Parisi--Zhang universality in optically induced lattices of exciton--polariton condensates
D. Novokreschenov, V. Neplokh, M. Misko, N. Starkova, T. Cookson, A. Kudlis, A. Nalitov, I. A. Shelykh, A. V. Kavokin, P. Lagoudakis
https://arxiv.org/abs/2506.10187

Kardar--Parisi--Zhang universality in optically induced lattices of exciton--polariton condensates
We investigate space-time coherence in one-dimensional lattices of exciton-polariton condensates formed by fully reconfigurable non-resonant optical pumping. Starting from an open-dissipative Gross-Pitaevskii equation with deterministic reservoir kinetics and stochastic condensate noise, we derive a discrete complex-field model that incorporates coherent tunnelling, reservoir-mediated dissipative coupling and gain-saturation non-linearity. Adiabatic elimination of fast density fluctuations reve…