Tootfinder

Ionic photofragmentation cross sections of the HS H2S and HCl molecular ions near the 2p threshold
Jean-Paul Mosnier, Eugene T. Kennedy, Denis Cubaynes, Jean-Marc Bizau, Segolene Guilbaud, Stephane Carniato
https://arxiv.org/abs/2507.16993 https://arxiv.org/pdf/2507.16993 https://arxiv.org/html/2507.16993
arXiv:2507.16993v1 Announce Type: new
Abstract: The absolute cross sections for the production of X2 and X3 ions following absorption of monochromatized SOLEIL synchrotron radiation by the HX hydride molecular ions (X = S,Cl) are presented as a function of photon energy in the region of the X 2p ionisation thresholds (180 eV and 220 eV for sulphur and chlorine, respectively). The experimental results are interpreted with the help of extensive ab initio density functional theory (DFT) and post-Hartree-Fock configuration interaction calculations including spin-orbit coupling to compute the absorption oscillator strengths of the X 2p core excitations to valence and Rydberg states. In order to account for all the experimental features,the calculations must include vibrational dynamics and spin-orbit coupling. Similar experimental data are also presented for the sulfanyumil H2S molecular ion.
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Global well-posedness of the Majda-Biello system in the resonant case on the real line
Xin Yang
https://arxiv.org/abs/2507.17565 https://arxiv.org/pdf/2507…

Global well-posedness of the Majda-Biello system in the resonant case on the real line
We study the Cauchy problem for the following Majda-Biello system in the case $α=4$, which has the most significant resonance effect, on the real line. \[ \left\{ \begin{array}{l} u_{t} + u_{xxx} = - v v_x, v_{t} + αv_{xxx} = - (uv)_{x}, (u,v)|_{t=0} = (u_0,v_0) \in H^{s}(\mathbb{R}) \times H^{s}(\mathbb{R}), \end{array} \right. \quad x \in \mathbb{R}, \, t \in \mathbb{R}. \] For Sobolev regularity $s\in[\frac34, 1)$, we establish the global well-posedness by refining the I-method.…

On The Road - To Xi’An/ Quiescence ➰
在路上 - 去西安/ 静止 ➰
📷 Pentax MX
🎞️Kodak Double-X 5222
#filmphotography #Photography #blackandwhite

Improving After-sales Service: Deep Reinforcement Learning for Dynamic Time Slot Assignment with Commitments and Customer Preferences
Xiao Mao, Albert H. Schrotenboer, Guohua Wu, Willem van Jaarsveld
https://arxiv.org/abs/2509.17870

Improving After-sales Service: Deep Reinforcement Learning for Dynamic Time Slot Assignment with Commitments and Customer Preferences
Problem definition: For original equipment manufacturers (OEMs), high-tech maintenance is a strategic component in after-sales services, involving close coordination between customers and service engineers. Each customer suggests several time slots for their maintenance task, from which the OEM must select one. This decision needs to be made promptly to support customers' planning. At the end of each day, routes for service engineers are planned to fulfill the tasks scheduled for the following …

On the Semicontinuity of Functionals on Function Spaces
Fernanda M. Ba\^eta, Monika Ludwig
https://arxiv.org/abs/2509.17426 https://arxiv.org/pdf/2509.1742…

On the Semicontinuity of Functionals on Function Spaces
Results on the upper and lower semicontinuity of functionals defined on spaces of convex and more general functions are established. In particular, the following result is obtained. Let $ϕ(v; \cdot)$ be the density of the absolutely continuous part of a Radon measure $Φ(v; \cdot)$ associated to a function $v\colon X\rightarrow \mathbb{R}$ defined on the measure space $(X,λ)$. For concave $ζ\colon [0, \infty)\rightarrow[0,\infty)$ with $\lim_{t\to 0} ζ(t)=0$ and $\lim_{t\to\infty}ζ(t)/t= 0…

Experimental overview on the charmed baryon decays
Pei-Rong Li, Xiao-Rui Lyu, Yangheng Zheng
https://arxiv.org/abs/2509.19141 https://arxiv.org/pdf/2509.19…

Experimental overview on the charmed baryon decays
The charmed baryon was first observed experimentally in 1975, one year after the charm quark's confirmation via the discovery of the $J/ψ$ particle. Studying charmed baryon decays provides a pathway to investigate both strong and weak interactions, leveraging the weak decays of the embedded charm quark. However, for approximately three decades following its discovery, experimental knowledge of charmed baryons remained significantly limited compared to those of the hidden-charm $ψ$ mesons and …

Lifehack:
Activate your Out-of-Office responder already on the morning of your last day at work, saying you're away from today 1 to date x.
Most people won't read the exact phrasing, thus you have time to tie up all the lose ends without getting buried under new "Can you please do this before your vacation?" requests.
#lifehack

Holistic Grid-Forming Control for HVDC-Connected Offshore Wind Power Plants to Provide Frequency Response
Zhenghua Xu, Dominic Gross, George Alin Raducu, Hesam Khazraj, Nicolaos A. Cutululis
https://arxiv.org/abs/2509.17672

Holistic Grid-Forming Control for HVDC-Connected Offshore Wind Power Plants to Provide Frequency Response
HVDC-connected offshore wind power plants (OWPPs) are expected to provide inertial response and frequency containment reserve (FCR) to help address the frequency control challenges caused by the growing penetration of power electronics in power systems. Initially dominated by communication-based and grid-following (GFL) control, recent efforts have shifted towards incorporating communication-free and grid-forming (GFM) control into HVDC-OWPP systems to enhance their frequency response capabilit…

Tides of Memory: Digital Echoes of Netizen Remembran
Lingyu Peng, Chang Ge, Liying Long, Xin Li, Xiao Hu, Pengda Lu, Qingchuan Li, Jiangyue Wu
https://arxiv.org/abs/2509.16579 h…

Tides of Memory: Digital Echoes of Netizen Remembran
This artwork presents an interdisciplinary interaction installation that visualizes collective online mourning behavior in China. By focusing on commemorative content posted on Sina Weibo following the deaths of seven prominent Chinese authors, the artwork employs data scraping, natural language processing, and 3D modeling to transform fragmented textual expressions into immersive digital monuments. Through the analysis of word frequencies, topic models, and user engagement metrics, the system …

Turns out that what hit flight #UA1093 was most likely a balloon from https://windbornesystems.com - this was brought up first in the thread https://x.com/vk5qi/status/1980386581497409891 and now the company confirms that it's a very strong possibility: https://x.com/johndeanl/status/1980462264974209292. See also https://www.youtube.com/watch?v=YZzbS30xdjM for a short video about the company and how it's filling the atmosphere with long-duration balloons carrying weather sensors. They had just been hailed as one of the best inventions of 2025: https://time.com/collections/best-inventions-2025/7318250/windborne-systems-atlas/ ...