Tootfinder

Data-fused Model Predictive Control with Guarantees: Application to Flying Humanoid Robots
Davide Gorbani, Mohamed Elobaid, Giuseppe L'Erario, Hosameldin Awadalla Omer Mohamed, Daniele Pucci
https://arxiv.org/abs/2509.10353

Data-fused Model Predictive Control with Guarantees: Application to Flying Humanoid Robots
This paper introduces a Data-Fused Model Predictive Control (DFMPC) framework that combines physics-based models with data-driven representations of unknown dynamics. Leveraging Willems' Fundamental Lemma and an artificial equilibrium formulation, the method enables tracking of changing, potentially unreachable setpoints while explicitly handling measurement noise through slack variables and regularization. We provide guarantees of recursive feasibility and practical stability under input-outpu…

"Whenever anyone asks me for advice, I tell them: we don’t realize how deeply the nine-to-five fractures us. The weekends, the holidays, the fixed friend group—whatever rigidness exists in your behavior will exist in your perception, and it will exist in your ability to think critically."
Victoria Brugger, "Last Words of an Ego on Death Row"

Last Words of an Ego on Death Row
Hello.I don’t know who you are. But I hope we meet in the next pages—across whichever dimension I had to cross to embody these feelings.This is not a book. It is not a journal.It is the autopsy of an ego and the birth certificate of the woman I am today.It carries the blueprints I bled for: how to build something from nothing, how to love yourself when the mirror is a battlefield, how to decode the nature of existence and drag purpose out of the dark.But more than all of that—this is my b…

Pose-Free 3D Quantitative Phase Imaging of Flowing Cellular Populations
Enze Ye, Wei Lin, Shaochi Ren, Yakun Liu, Xiaoping Li, Hao Wang, He Sun, Feng Pan
https://arxiv.org/abs/2509.04848

Pose-Free 3D Quantitative Phase Imaging of Flowing Cellular Populations
High-throughput 3D quantitative phase imaging (QPI) in flow cytometry enables label-free, volumetric characterization of individual cells by reconstructing their refractive index (RI) distributions from multiple viewing angles during flow through microfluidic channels. However, current imaging methods assume that cells undergo uniform, single-axis rotation, which require their poses to be known at each frame. This assumption restricts applicability to near-spherical cells and prevents accurate …

Really silly dream
I had a really silly #dream recently. I dreamt that my CFL broke. Or more specifically, it kept trying to turn out, successive parts of it were lighting up, then it all went off and tried again. And it looked like it had a bunch of cuts across it, and around these cuts little thunder sparks started appearing, like some kind of STALKER-like anomaly.
I finally flipped the switch, but the anomaly remained, and I wanted to get rid of it in case the sparks could jump onto my hardware and damage something. So I threw a metal bowl towards it, supposing the thunder would jump onto it. While it was flying near the anomaly, it slowed down and started turning back like a boomerang. On top of that, pieces of cat food (don't ask me why I threw a full bowl) were getting out of it and staying in the air levitating. When the bowl reached the floor and started turning again, Mr Ek came close to it and started levitating himself; he was sitting a few centimeters above the floor.
In the middle of all this, I've figured out I should record it. I took a bunch of photos with my phone, before I managed to switch to recording video.
Once I've recorded the fascinating flying bowls and levitating cat food, I needed to go back to discharging the thing. I threw a second metal bowl, and that one started levitating as well. I've figured out that's stupid, and I've found some big ass hammer with a metal end and a wooden handle. I held the end near the lamp to charge it, then tried to find something to discharge it to. I've tried some small stuff like the door handle, but obviously that wasn't sufficient. Finally, I've figured out to use the electricity box, since it is grounded. I held the hammer to it, watching sparks light the semi-darkness; I've recorded that as well.
And that's how much of it I remember.

Favorable modifications of Scrape-Off Layer (SOL) heat flux width through pulsed fuelling in ADITYA-U Tokamak
SK Injamul Hoque (Institute for Plasma Research, Gandhinagar, India, Homi Bhabha National Institute, Mumbai, India), Harshita Raj (Institute for Plasma Research, Gandhinagar, India, Homi Bhabha National Institute, Mumbai, India), Ritu Dey (Department of Physics, Indian Institute of Technology Tirupati, Yerpedu, India), Soumitra Banerjee (Institute for Plasma Research, Gandhinag…

Favorable modifications of Scrape-Off Layer (SOL) heat flux width through pulsed fuelling in ADITYA-U Tokamak
Enhancement of the scrape-off layer (SOL) heat flux width has been observed in the ADITYA-U Tokamak following the injection of short fuel gas pulses. A notable reduction in parallel heat flux near the last closed flux surface (LCFS) is observed after each pulse. Comparative analysis indicates that pulsed fuelling is more effective in mitigating heat flux with improved core confinement than continuous gas feeding via real-time density control. Analytical and simulation works are also carried out…

Anisotropy by design in superconducting Nb thin films via ultrashort pulse laser irradiation
Javier Frechilla (Instituto de Nanociencia y Materiales de Arag\'on), Nicolas Lejeune (D\'epartement de Physique, Q-MAT, CESAM, Universit\'e de Li\`ege, B-4000, Belgium), Elena Mart\'inez (Instituto de Nanociencia y Materiales de Arag\'on), Emile Fourneau (D\'epartement de Physique, Q-MAT, CESAM, Universit\'e de Li\`ege, B-4000, Belgium), Alejandro Frechilla (Institu…

Anisotropy by design in superconducting Nb thin films via ultrashort pulse laser irradiation
The ability to fabricate anisotropic superconducting layers a la carte is desired in technologies such as fluxon screening or removal in field-resilient devices, flux lensing in ultra-sensitive sensors, or in templates for imprinting magnetic structures in hybrid magnetic/superconducting multilayers. In this work, we demonstrate tailored superconductivity in polycrystalline niobium thin films exposed to femtosecond ultraviolet laser pulses. The samples exhibit significant changes in their super…

Revival of Layered Ferroelectrics in Thin Films
Elzbieta Gradauskaite
https://arxiv.org/abs/2508.20742 https://arxiv.org/pdf/2508.20742

Revival of Layered Ferroelectrics in Thin Films
Layered perovskites are a versatile class of ferroelectrics with their structural anisotropy reflected in unusual electrostatics that give rise to exceptional ferroelectric properties. These materials fall into four main families: Aurivillius, Carpy-Galy, Ruddlesden-Popper, and Dion-Jacobson phases; each forming natural superlattices by interleaving perovskite slabs with spacer layers. For a long time, these materials were considered too structurally complex to prepare as high-quality thin film…

I've got a 3am start with derpmaster Mike coming up in the next few days. He normally gets up at 5.30am so I've got a feeling there's going to be no settling him after I arrive and his regular humans all leave.
Still, hot weather will mean an early walk and breakfast and then we can both snooze!
My fourth year of looking after Michael.
#Greyhounds

A Greedy PDE Router for Blending Neural Operators and Classical Methods
Sahana Rayan, Yash Patel, Ambuj Tewari
https://arxiv.org/abs/2509.24814 https://arx…

A Greedy PDE Router for Blending Neural Operators and Classical Methods
When solving PDEs, classical numerical solvers are often computationally expensive, while machine learning methods can suffer from spectral bias, failing to capture high-frequency components. Designing an optimal hybrid iterative solver--where, at each iteration, a solver is selected from an ensemble of solvers to leverage their complementary strengths--poses a challenging combinatorial problem. While the greedy selection strategy is desirable for its constant-factor approximation guarantee to …