Tootfinder

GenFlowRL: Shaping Rewards with Generative Object-Centric Flow in Visual Reinforcement Learning
Kelin Yu, Sheng Zhang, Harshit Soora, Furong Huang, Heng Huang, Pratap Tokekar, Ruohan Gao
https://arxiv.org/abs/2508.11049

GenFlowRL: Shaping Rewards with Generative Object-Centric Flow in Visual Reinforcement Learning
Recent advances have shown that video generation models can enhance robot learning by deriving effective robot actions through inverse dynamics. However, these methods heavily depend on the quality of generated data and struggle with fine-grained manipulation due to the lack of environment feedback. While video-based reinforcement learning improves policy robustness, it remains constrained by the uncertainty of video generation and the challenges of collecting large-scale robot datasets for tra…

A young gas giant and hidden substructures in a protoplanetary disk
\'Alvaro Ribas, Miguel Vioque, Francesco Zagaria, Cristiano Longarini, Enrique Mac\'ias, Cathie J. Clarke, Sebasti\'an P\'erez, John Carpenter, Nicol\'as Cuello, Itziar de Gregorio-Monsalvo
https://arxiv.org/abs/2507.11612

A young gas giant and hidden substructures in a protoplanetary disk
The detection of planets in protoplanetary disks has proven to be extremely challenging. In contrast, rings and gaps, usually attributed to planet-disk interactions, have been found in virtually every large protoplanetary (Class II) disk observed at 0.9-1.3 mm with sufficient spatial resolution (5 au). The nearby disk around MP Mus (PDS 66) stands as an exception to this rule, and its advanced age (7-10 Myr) is particularly difficult to reconcile with its apparent lack of substructures. Despite…

Quasi-static shape control of soft, morphing structures
Eszter Feh\'er, Andr\'as \'Arp\'ad Sipos, P\'eter V\'arkonyi
https://arxiv.org/abs/2509.12916 htt…

Quasi-static shape control of soft, morphing structures
Inspired by biological systems, we introduce a general framework for quasi-static shape control of human-scale structures under slowly varying external actions or requirements. In this setting, shape control aims to traverse the stable sub-manifolds of the equilibrium set to meet some predefined requirements or optimization criteria. As finite deformations are allowed, the equilibrium set may have a non-trivial topology. This paper explores the implications of large shape changes and high compl…

For running my #HamRadio portable setup from solar power, I made a power distribution box. I didn't know where to stop, apparently, and now I have a beast that weighs 1.2kg. It has two isolated battery busses, each of which has an XT60M, PowerPole, and 5.5x2.1mm barrel connector to choose from, supporting the batteries I have and that friends might have. It has four other circuits that …

1/2 'Glitzer' #FotoVorschlag 'glitter'
I don't have a lot of glitter in my portfolio. But #snowflakes can be like glitter in the counter light!
I took this #photo …

The portable air conditioner unit we have in the bedroom is reasonably advanced: it has WiFi connectivity, a remote control, and the ability to switch between heating and cooling. It's annoying, though, that you can only set a sleep timer on the unit itself, which isn't great when you're all nice and comfy in bed. It also takes several button presses when you're there. Fixed thanks to #HomeAssistant, meaning it can be set through the app or voice 😄

Prompt atmospheric leptons and the potential role of intrinsic charm
Laksha Pradip Das, Diksha Garg, Maria Vittoria Garzelli, Mary Hall Reno, G\"unter Sigl
https://arxiv.org/abs/2508.06473

Prompt atmospheric leptons and the potential role of intrinsic charm
The all-sky very-high energy ($10^4-10^6$ GeV) atmospheric muon flux is most recently measured by IceCube, where in the higher energy range, the spectrum hardens indicating a prompt component. IceCube also measures the atmospheric muon neutrino flux at high energy. Since this is dominated by the astrophysical flux, they are only able to set an upper bound on the prompt atmospheric muon neutrino flux contribution. We provide a new evaluation of the prompt atmospheric muon flux including for the …

Author Once, Publish Everywhere: Portable Metadata Authoring with the CEDAR Embeddable Editor
Martin J. O'Connor, Marcos Martinez-Romero, Attila L. Egyedi, Mete U. Akdogan, Michael V. Dorf, Mark A. Musen
https://arxiv.org/abs/2508.00859

Author Once, Publish Everywhere: Portable Metadata Authoring with the CEDAR Embeddable Editor
High-quality, "rich" metadata are essential for making research data findable, interoperable, and reusable. The Center for Expanded Data Annotation and Retrieval (CEDAR) has long addressed this need by providing tools to design machine-actionable metadata templates that encode community standards in a computable form. To make these capabilities more accessible within real-world research workflows, we have developed the CEDAR Embeddable Editor (CEE)-a lightweight, interoperable Web Component tha…

Dust growth and planet formation by disc fragmentation
Hans Lee, Sergei Nayakshin, Richard A. Booth
https://arxiv.org/abs/2509.09305 https://arxiv.org/pdf/…

Dust growth and planet formation by disc fragmentation
It is often argued that gravitational instability of realistic protoplanetary discs is only possible at distances larger than $\sim 50$ au from the central star, requiring high disc masses and accretion rates, and that therefore disc fragmentation results in the production of brown dwarfs rather than gas giant planets. However, the effects of dust growth on opacity can be very significant but have not been taken into account systematically in the models of fragmenting discs. We employ dust opac…

Hydrodynamical Simulations of Planet Rebound Migration in Photo-evaporating Disks
Beibei Liu, Cl\'ement Baruteau, Zhaohuan Zhu, Ya-Ping Li, Sijme-Jan Paardekooper
https://arxiv.org/abs/2509.06695

Hydrodynamical Simulations of Planet Rebound Migration in Photo-evaporating Disks
This study investigates the orbital migration of a planet located near the truncated edge of protoplanetary disks, induced by X-ray photo-evaporation originating from the central star. The combined effects of turbulent viscous accretion and stellar X-ray photo-evaporation give rise to the formation of a cavity in the central few astronomical units in disks. Once the cavity is formed, the outer disk experiences rapid mass loss and the cavity expands inside out. We have conducted 2D hydrodynamica…